AWSLambdaClient.java

/*
 * Copyright 2010-2016 Amazon.com, Inc. or its affiliates. All Rights
 * Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
package com.amazonaws.services.lambda;

import org.w3c.dom.*;

import java.net.*;
import java.util.*;
import java.util.Map.Entry;

import org.apache.commons.logging.*;

import com.amazonaws.*;
import com.amazonaws.auth.*;
import com.amazonaws.handlers.*;
import com.amazonaws.http.*;
import com.amazonaws.internal.*;
import com.amazonaws.metrics.*;
import com.amazonaws.regions.*;
import com.amazonaws.transform.*;
import com.amazonaws.util.*;
import com.amazonaws.protocol.json.*;
import com.amazonaws.util.AWSRequestMetrics.Field;
import com.amazonaws.annotation.ThreadSafe;

import com.amazonaws.services.lambda.model.*;
import com.amazonaws.services.lambda.model.transform.*;

/**
 * Client for accessing AWS Lambda. All service calls made using this client are
 * blocking, and will not return until the service call completes.
 * <p>
 * <fullname>AWS Lambda</fullname>
 * <p>
 * <b>Overview</b>
 * </p>
 * <p>
 * This is the <i>AWS Lambda API Reference</i>. The AWS Lambda Developer Guide
 * provides additional information. For the service overview, go to <a
 * href="http://docs.aws.amazon.com/lambda/latest/dg/welcome.html">What is AWS
 * Lambda</a>, and for information about how the service works, go to <a
 * href="http://docs.aws.amazon.com/lambda/latest/dg/lambda-introduction.html"
 * >AWS Lambda: How it Works</a> in the <i>AWS Lambda Developer Guide</i>.
 * </p>
 */
@ThreadSafe
public class AWSLambdaClient extends AmazonWebServiceClient implements
        AWSLambda {
    /** Provider for AWS credentials. */
    private AWSCredentialsProvider awsCredentialsProvider;

    private static final Log log = LogFactory.getLog(AWSLambda.class);

    /** Default signing name for the service. */
    private static final String DEFAULT_SIGNING_NAME = "lambda";

    /**
     * Client configuration factory providing ClientConfigurations tailored to
     * this client
     */
    protected static final ClientConfigurationFactory configFactory = new ClientConfigurationFactory();

    private final SdkJsonProtocolFactory protocolFactory = new SdkJsonProtocolFactory(
            new JsonClientMetadata()
                    .withProtocolVersion("1.1")
                    .withSupportsCbor(false)
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode("ResourceConflictException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.ResourceConflictException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode(
                                            "CodeStorageExceededException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.CodeStorageExceededException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode("ServiceException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.ServiceException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode("RequestTooLargeException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.RequestTooLargeException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode(
                                            "InvalidSecurityGroupIDException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.InvalidSecurityGroupIDException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode(
                                            "InvalidParameterValueException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.InvalidParameterValueException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode("EC2AccessDeniedException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.EC2AccessDeniedException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode(
                                            "PolicyLengthExceededException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.PolicyLengthExceededException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode("InvalidSubnetIDException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.InvalidSubnetIDException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode("ENILimitReachedException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.ENILimitReachedException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode("EC2ThrottledException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.EC2ThrottledException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode("EC2UnexpectedException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.EC2UnexpectedException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode(
                                            "SubnetIPAddressLimitReachedException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.SubnetIPAddressLimitReachedException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode(
                                            "UnsupportedMediaTypeException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.UnsupportedMediaTypeException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode(
                                            "InvalidRequestContentException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.InvalidRequestContentException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode("ResourceNotFoundException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.ResourceNotFoundException.class))
                    .addErrorMetadata(
                            new JsonErrorShapeMetadata()
                                    .withErrorCode("TooManyRequestsException")
                                    .withModeledClass(
                                            com.amazonaws.services.lambda.model.TooManyRequestsException.class)));

    /**
     * Constructs a new client to invoke service methods on AWS Lambda. A
     * credentials provider chain will be used that searches for credentials in
     * this order:
     * <ul>
     * <li>Environment Variables - AWS_ACCESS_KEY_ID and AWS_SECRET_KEY</li>
     * <li>Java System Properties - aws.accessKeyId and aws.secretKey</li>
     * <li>Instance profile credentials delivered through the Amazon EC2
     * metadata service</li>
     * </ul>
     *
     * <p>
     * All service calls made using this new client object are blocking, and
     * will not return until the service call completes.
     *
     * @see DefaultAWSCredentialsProviderChain
     */
    public AWSLambdaClient() {
        this(new DefaultAWSCredentialsProviderChain(), configFactory
                .getConfig());
    }

    /**
     * Constructs a new client to invoke service methods on AWS Lambda. A
     * credentials provider chain will be used that searches for credentials in
     * this order:
     * <ul>
     * <li>Environment Variables - AWS_ACCESS_KEY_ID and AWS_SECRET_KEY</li>
     * <li>Java System Properties - aws.accessKeyId and aws.secretKey</li>
     * <li>Instance profile credentials delivered through the Amazon EC2
     * metadata service</li>
     * </ul>
     *
     * <p>
     * All service calls made using this new client object are blocking, and
     * will not return until the service call completes.
     *
     * @param clientConfiguration
     *        The client configuration options controlling how this client
     *        connects to AWS Lambda (ex: proxy settings, retry counts, etc.).
     *
     * @see DefaultAWSCredentialsProviderChain
     */
    public AWSLambdaClient(ClientConfiguration clientConfiguration) {
        this(new DefaultAWSCredentialsProviderChain(), clientConfiguration);
    }

    /**
     * Constructs a new client to invoke service methods on AWS Lambda using the
     * specified AWS account credentials.
     *
     * <p>
     * All service calls made using this new client object are blocking, and
     * will not return until the service call completes.
     *
     * @param awsCredentials
     *        The AWS credentials (access key ID and secret key) to use when
     *        authenticating with AWS services.
     */
    public AWSLambdaClient(AWSCredentials awsCredentials) {
        this(awsCredentials, configFactory.getConfig());
    }

    /**
     * Constructs a new client to invoke service methods on AWS Lambda using the
     * specified AWS account credentials and client configuration options.
     *
     * <p>
     * All service calls made using this new client object are blocking, and
     * will not return until the service call completes.
     *
     * @param awsCredentials
     *        The AWS credentials (access key ID and secret key) to use when
     *        authenticating with AWS services.
     * @param clientConfiguration
     *        The client configuration options controlling how this client
     *        connects to AWS Lambda (ex: proxy settings, retry counts, etc.).
     */
    public AWSLambdaClient(AWSCredentials awsCredentials,
            ClientConfiguration clientConfiguration) {
        super(clientConfiguration);
        this.awsCredentialsProvider = new StaticCredentialsProvider(
                awsCredentials);
        init();
    }

    /**
     * Constructs a new client to invoke service methods on AWS Lambda using the
     * specified AWS account credentials provider.
     *
     * <p>
     * All service calls made using this new client object are blocking, and
     * will not return until the service call completes.
     *
     * @param awsCredentialsProvider
     *        The AWS credentials provider which will provide credentials to
     *        authenticate requests with AWS services.
     */
    public AWSLambdaClient(AWSCredentialsProvider awsCredentialsProvider) {
        this(awsCredentialsProvider, configFactory.getConfig());
    }

    /**
     * Constructs a new client to invoke service methods on AWS Lambda using the
     * specified AWS account credentials provider and client configuration
     * options.
     *
     * <p>
     * All service calls made using this new client object are blocking, and
     * will not return until the service call completes.
     *
     * @param awsCredentialsProvider
     *        The AWS credentials provider which will provide credentials to
     *        authenticate requests with AWS services.
     * @param clientConfiguration
     *        The client configuration options controlling how this client
     *        connects to AWS Lambda (ex: proxy settings, retry counts, etc.).
     */
    public AWSLambdaClient(AWSCredentialsProvider awsCredentialsProvider,
            ClientConfiguration clientConfiguration) {
        this(awsCredentialsProvider, clientConfiguration, null);
    }

    /**
     * Constructs a new client to invoke service methods on AWS Lambda using the
     * specified AWS account credentials provider, client configuration options,
     * and request metric collector.
     *
     * <p>
     * All service calls made using this new client object are blocking, and
     * will not return until the service call completes.
     *
     * @param awsCredentialsProvider
     *        The AWS credentials provider which will provide credentials to
     *        authenticate requests with AWS services.
     * @param clientConfiguration
     *        The client configuration options controlling how this client
     *        connects to AWS Lambda (ex: proxy settings, retry counts, etc.).
     * @param requestMetricCollector
     *        optional request metric collector
     */
    public AWSLambdaClient(AWSCredentialsProvider awsCredentialsProvider,
            ClientConfiguration clientConfiguration,
            RequestMetricCollector requestMetricCollector) {
        super(clientConfiguration, requestMetricCollector);
        this.awsCredentialsProvider = awsCredentialsProvider;
        init();
    }

    private void init() {
        setServiceNameIntern(DEFAULT_SIGNING_NAME);
        setEndpointPrefix(ENDPOINT_PREFIX);
        // calling this.setEndPoint(...) will also modify the signer accordingly
        setEndpoint("lambda.us-east-1.amazonaws.com");
        HandlerChainFactory chainFactory = new HandlerChainFactory();
        requestHandler2s
                .addAll(chainFactory
                        .newRequestHandlerChain("/com/amazonaws/services/lambda/request.handlers"));
        requestHandler2s
                .addAll(chainFactory
                        .newRequestHandler2Chain("/com/amazonaws/services/lambda/request.handler2s"));
    }

    /**
     * <p>
     * Adds a permission to the resource policy associated with the specified
     * AWS Lambda function. You use resource policies to grant permissions to
     * event sources that use <i>push</i> model. In a <i>push</i> model, event
     * sources (such as Amazon S3 and custom applications) invoke your Lambda
     * function. Each permission you add to the resource policy allows an event
     * source, permission to invoke the Lambda function.
     * </p>
     * <p>
     * For information about the push model, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/lambda-introduction.html"
     * >AWS Lambda: How it Works</a>.
     * </p>
     * <p>
     * If you are using versioning, the permissions you add are specific to the
     * Lambda function version or alias you specify in the
     * <code>AddPermission</code> request via the <code>Qualifier</code>
     * parameter. For more information about versioning, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:AddPermission</code> action.
     * </p>
     * 
     * @param addPermissionRequest
     * @return Result of the AddPermission operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws ResourceConflictException
     *         The resource already exists.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws PolicyLengthExceededException
     *         Lambda function access policy is limited to 20 KB.
     * @throws TooManyRequestsException
     * @sample AWSLambda.AddPermission
     */
    @Override
    public AddPermissionResult addPermission(
            AddPermissionRequest addPermissionRequest) {
        ExecutionContext executionContext = createExecutionContext(addPermissionRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<AddPermissionRequest> request = null;
        Response<AddPermissionResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new AddPermissionRequestMarshaller(protocolFactory)
                        .marshall(super.beforeMarshalling(addPermissionRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<AddPermissionResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new AddPermissionResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Creates an alias that points to the specified Lambda function version.
     * For more information, see <a
     * href="http://docs.aws.amazon.com/lambda/latest/dg/aliases-intro.html"
     * >Introduction to AWS Lambda Aliases</a>.
     * </p>
     * Alias names are unique for a given function.
     * <p>
     * This requires permission for the lambda:CreateAlias action.
     * </p>
     * 
     * @param createAliasRequest
     * @return Result of the CreateAlias operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws ResourceConflictException
     *         The resource already exists.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @sample AWSLambda.CreateAlias
     */
    @Override
    public CreateAliasResult createAlias(CreateAliasRequest createAliasRequest) {
        ExecutionContext executionContext = createExecutionContext(createAliasRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<CreateAliasRequest> request = null;
        Response<CreateAliasResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new CreateAliasRequestMarshaller(protocolFactory)
                        .marshall(super.beforeMarshalling(createAliasRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<CreateAliasResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new CreateAliasResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Identifies a stream as an event source for a Lambda function. It can be
     * either an Amazon Kinesis stream or an Amazon DynamoDB stream. AWS Lambda
     * invokes the specified function when records are posted to the stream.
     * </p>
     * <p>
     * This association between a stream source and a Lambda function is called
     * the event source mapping.
     * </p>
     * <important>This event source mapping is relevant only in the AWS Lambda
     * pull model, where AWS Lambda invokes the function. For more information,
     * go to <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/lambda-introduction.html"
     * >AWS Lambda: How it Works</a> in the <i>AWS Lambda Developer
     * Guide</i>.</important>
     * <p>
     * You provide mapping information (for example, which stream to read from
     * and which Lambda function to invoke) in the request body.
     * </p>
     * <p>
     * Each event source, such as an Amazon Kinesis or a DynamoDB stream, can be
     * associated with multiple AWS Lambda function. A given Lambda function can
     * be associated with multiple AWS event sources.
     * </p>
     * <p>
     * <p>
     * If you are using versioning, you can specify a specific function version
     * or an alias via the function name parameter. For more information about
     * versioning, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:CreateEventSourceMapping</code> action.
     * </p>
     * 
     * @param createEventSourceMappingRequest
     * @return Result of the CreateEventSourceMapping operation returned by the
     *         service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws ResourceConflictException
     *         The resource already exists.
     * @throws TooManyRequestsException
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @sample AWSLambda.CreateEventSourceMapping
     */
    @Override
    public CreateEventSourceMappingResult createEventSourceMapping(
            CreateEventSourceMappingRequest createEventSourceMappingRequest) {
        ExecutionContext executionContext = createExecutionContext(createEventSourceMappingRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<CreateEventSourceMappingRequest> request = null;
        Response<CreateEventSourceMappingResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new CreateEventSourceMappingRequestMarshaller(
                        protocolFactory).marshall(super
                        .beforeMarshalling(createEventSourceMappingRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<CreateEventSourceMappingResult>> responseHandler = protocolFactory
                    .createResponseHandler(
                            new JsonOperationMetadata().withPayloadJson(true)
                                    .withHasStreamingSuccessResponse(false),
                            new CreateEventSourceMappingResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Creates a new Lambda function. The function metadata is created from the
     * request parameters, and the code for the function is provided by a .zip
     * file in the request body. If the function name already exists, the
     * operation will fail. Note that the function name is case-sensitive.
     * </p>
     * <p>
     * If you are using versioning, you can also publish a version of the Lambda
     * function you are creating using the <code>Publish</code> parameter. For
     * more information about versioning, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:CreateFunction</code> action.
     * </p>
     * 
     * @param createFunctionRequest
     * @return Result of the CreateFunction operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws ResourceConflictException
     *         The resource already exists.
     * @throws TooManyRequestsException
     * @throws CodeStorageExceededException
     *         You have exceeded your maximum total code size per account. <a
     *         href="http://docs.aws.amazon.com/lambda/latest/dg/limits.html">
     *         Limits</a>
     * @sample AWSLambda.CreateFunction
     */
    @Override
    public CreateFunctionResult createFunction(
            CreateFunctionRequest createFunctionRequest) {
        ExecutionContext executionContext = createExecutionContext(createFunctionRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<CreateFunctionRequest> request = null;
        Response<CreateFunctionResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new CreateFunctionRequestMarshaller(protocolFactory)
                        .marshall(super
                                .beforeMarshalling(createFunctionRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<CreateFunctionResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new CreateFunctionResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Deletes the specified Lambda function alias. For more information, see <a
     * href="http://docs.aws.amazon.com/lambda/latest/dg/aliases-intro.html">
     * Introduction to AWS Lambda Aliases</a>.
     * </p>
     * <p>
     * This requires permission for the lambda:DeleteAlias action.
     * </p>
     * 
     * @param deleteAliasRequest
     * @return Result of the DeleteAlias operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @sample AWSLambda.DeleteAlias
     */
    @Override
    public DeleteAliasResult deleteAlias(DeleteAliasRequest deleteAliasRequest) {
        ExecutionContext executionContext = createExecutionContext(deleteAliasRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<DeleteAliasRequest> request = null;
        Response<DeleteAliasResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new DeleteAliasRequestMarshaller(protocolFactory)
                        .marshall(super.beforeMarshalling(deleteAliasRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<DeleteAliasResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new DeleteAliasResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Removes an event source mapping. This means AWS Lambda will no longer
     * invoke the function for events in the associated source.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:DeleteEventSourceMapping</code> action.
     * </p>
     * 
     * @param deleteEventSourceMappingRequest
     * @return Result of the DeleteEventSourceMapping operation returned by the
     *         service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @sample AWSLambda.DeleteEventSourceMapping
     */
    @Override
    public DeleteEventSourceMappingResult deleteEventSourceMapping(
            DeleteEventSourceMappingRequest deleteEventSourceMappingRequest) {
        ExecutionContext executionContext = createExecutionContext(deleteEventSourceMappingRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<DeleteEventSourceMappingRequest> request = null;
        Response<DeleteEventSourceMappingResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new DeleteEventSourceMappingRequestMarshaller(
                        protocolFactory).marshall(super
                        .beforeMarshalling(deleteEventSourceMappingRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<DeleteEventSourceMappingResult>> responseHandler = protocolFactory
                    .createResponseHandler(
                            new JsonOperationMetadata().withPayloadJson(true)
                                    .withHasStreamingSuccessResponse(false),
                            new DeleteEventSourceMappingResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Deletes the specified Lambda function code and configuration.
     * </p>
     * <p>
     * If you are using the versioning feature and you don't specify a function
     * version in your <code>DeleteFunction</code> request, AWS Lambda will
     * delete the function, including all its versions, and any aliases pointing
     * to the function versions. To delete a specific function version, you must
     * provide the function version via the <code>Qualifier</code> parameter.
     * For information about function versioning, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * When you delete a function the associated resource policy is also
     * deleted. You will need to delete the event source mappings explicitly.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:DeleteFunction</code> action.
     * </p>
     * 
     * @param deleteFunctionRequest
     * @return Result of the DeleteFunction operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws TooManyRequestsException
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws ResourceConflictException
     *         The resource already exists.
     * @sample AWSLambda.DeleteFunction
     */
    @Override
    public DeleteFunctionResult deleteFunction(
            DeleteFunctionRequest deleteFunctionRequest) {
        ExecutionContext executionContext = createExecutionContext(deleteFunctionRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<DeleteFunctionRequest> request = null;
        Response<DeleteFunctionResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new DeleteFunctionRequestMarshaller(protocolFactory)
                        .marshall(super
                                .beforeMarshalling(deleteFunctionRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<DeleteFunctionResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new DeleteFunctionResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Returns the specified alias information such as the alias ARN,
     * description, and function version it is pointing to. For more
     * information, see <a
     * href="http://docs.aws.amazon.com/lambda/latest/dg/aliases-intro.html"
     * >Introduction to AWS Lambda Aliases</a>.
     * </p>
     * <p>
     * This requires permission for the <code>lambda:GetAlias</code> action.
     * </p>
     * 
     * @param getAliasRequest
     * @return Result of the GetAlias operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @sample AWSLambda.GetAlias
     */
    @Override
    public GetAliasResult getAlias(GetAliasRequest getAliasRequest) {
        ExecutionContext executionContext = createExecutionContext(getAliasRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<GetAliasRequest> request = null;
        Response<GetAliasResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new GetAliasRequestMarshaller(protocolFactory)
                        .marshall(super.beforeMarshalling(getAliasRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<GetAliasResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new GetAliasResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Returns configuration information for the specified event source mapping
     * (see <a>CreateEventSourceMapping</a>).
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:GetEventSourceMapping</code> action.
     * </p>
     * 
     * @param getEventSourceMappingRequest
     * @return Result of the GetEventSourceMapping operation returned by the
     *         service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @sample AWSLambda.GetEventSourceMapping
     */
    @Override
    public GetEventSourceMappingResult getEventSourceMapping(
            GetEventSourceMappingRequest getEventSourceMappingRequest) {
        ExecutionContext executionContext = createExecutionContext(getEventSourceMappingRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<GetEventSourceMappingRequest> request = null;
        Response<GetEventSourceMappingResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new GetEventSourceMappingRequestMarshaller(
                        protocolFactory).marshall(super
                        .beforeMarshalling(getEventSourceMappingRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<GetEventSourceMappingResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new GetEventSourceMappingResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Returns the configuration information of the Lambda function and a
     * presigned URL link to the .zip file you uploaded with
     * <a>CreateFunction</a> so you can download the .zip file. Note that the
     * URL is valid for up to 10 minutes. The configuration information is the
     * same information you provided as parameters when uploading the function.
     * </p>
     * <p>
     * Using the optional <code>Qualifier</code> parameter, you can specify a
     * specific function version for which you want this information. If you
     * don't specify this parameter, the API uses unqualified function ARN which
     * return information about the <code>$LATEST</code> version of the Lambda
     * function. For more information, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:GetFunction</code> action.
     * </p>
     * 
     * @param getFunctionRequest
     * @return Result of the GetFunction operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws TooManyRequestsException
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @sample AWSLambda.GetFunction
     */
    @Override
    public GetFunctionResult getFunction(GetFunctionRequest getFunctionRequest) {
        ExecutionContext executionContext = createExecutionContext(getFunctionRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<GetFunctionRequest> request = null;
        Response<GetFunctionResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new GetFunctionRequestMarshaller(protocolFactory)
                        .marshall(super.beforeMarshalling(getFunctionRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<GetFunctionResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new GetFunctionResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Returns the configuration information of the Lambda function. This the
     * same information you provided as parameters when uploading the function
     * by using <a>CreateFunction</a>.
     * </p>
     * <p>
     * If you are using the versioning feature, you can retrieve this
     * information for a specific function version by using the optional
     * <code>Qualifier</code> parameter and specifying the function version or
     * alias that points to it. If you don't provide it, the API returns
     * information about the $LATEST version of the function. For more
     * information about versioning, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:GetFunctionConfiguration</code> operation.
     * </p>
     * 
     * @param getFunctionConfigurationRequest
     * @return Result of the GetFunctionConfiguration operation returned by the
     *         service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws TooManyRequestsException
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @sample AWSLambda.GetFunctionConfiguration
     */
    @Override
    public GetFunctionConfigurationResult getFunctionConfiguration(
            GetFunctionConfigurationRequest getFunctionConfigurationRequest) {
        ExecutionContext executionContext = createExecutionContext(getFunctionConfigurationRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<GetFunctionConfigurationRequest> request = null;
        Response<GetFunctionConfigurationResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new GetFunctionConfigurationRequestMarshaller(
                        protocolFactory).marshall(super
                        .beforeMarshalling(getFunctionConfigurationRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<GetFunctionConfigurationResult>> responseHandler = protocolFactory
                    .createResponseHandler(
                            new JsonOperationMetadata().withPayloadJson(true)
                                    .withHasStreamingSuccessResponse(false),
                            new GetFunctionConfigurationResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Returns the resource policy associated with the specified Lambda
     * function.
     * </p>
     * <p>
     * If you are using the versioning feature, you can get the resource policy
     * associated with the specific Lambda function version or alias by
     * specifying the version or alias name using the <code>Qualifier</code>
     * parameter. For more information about versioning, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * For information about adding permissions, see <a>AddPermission</a>.
     * </p>
     * <p>
     * You need permission for the <code>lambda:GetPolicy action.</code>
     * </p>
     * 
     * @param getPolicyRequest
     * @return Result of the GetPolicy operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws TooManyRequestsException
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @sample AWSLambda.GetPolicy
     */
    @Override
    public GetPolicyResult getPolicy(GetPolicyRequest getPolicyRequest) {
        ExecutionContext executionContext = createExecutionContext(getPolicyRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<GetPolicyRequest> request = null;
        Response<GetPolicyResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new GetPolicyRequestMarshaller(protocolFactory)
                        .marshall(super.beforeMarshalling(getPolicyRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<GetPolicyResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new GetPolicyResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Invokes a specific Lambda function.
     * </p>
     * <p>
     * If you are using the versioning feature, you can invoke the specific
     * function version by providing function version or alias name that is
     * pointing to the function version using the <code>Qualifier</code>
     * parameter in the request. If you don't provide the <code>Qualifier</code>
     * parameter, the <code>$LATEST</code> version of the Lambda function is
     * invoked. For information about the versioning feature, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:InvokeFunction</code> action.
     * </p>
     * 
     * @param invokeRequest
     * @return Result of the Invoke operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidRequestContentException
     *         The request body could not be parsed as JSON.
     * @throws RequestTooLargeException
     *         The request payload exceeded the <code>Invoke</code> request body
     *         JSON input limit. For more information, see <a
     *         href="http://docs.aws.amazon.com/lambda/latest/dg/limits.html"
     *         >Limits</a>.
     * @throws UnsupportedMediaTypeException
     *         The content type of the <code>Invoke</code> request body is not
     *         JSON.
     * @throws TooManyRequestsException
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws EC2UnexpectedException
     *         AWS Lambda received an unexpected EC2 client exception while
     *         setting up for the Lambda function.
     * @throws SubnetIPAddressLimitReachedException
     *         AWS Lambda was not able to set up VPC access for the Lambda
     *         function because one or more configured subnets has no available
     *         IP addresses.
     * @throws ENILimitReachedException
     *         AWS Lambda was not able to create an Elastic Network Interface
     *         (ENI) in the VPC, specified as part of Lambda function
     *         configuration, because the limit for network interfaces has been
     *         reached.
     * @throws EC2ThrottledException
     *         AWS Lambda was throttled by Amazon EC2 during Lambda function
     *         initiatization using the execution role provided for the Lambda
     *         function.
     * @throws EC2AccessDeniedException
     * @throws InvalidSubnetIDException
     *         The Subnet ID provided in the Lambda function VPC configuration
     *         is invalid.
     * @throws InvalidSecurityGroupIDException
     *         The Security Group ID provided in the Lambda function VPC
     *         configuration is invalid.
     * @sample AWSLambda.Invoke
     */
    @Override
    public InvokeResult invoke(InvokeRequest invokeRequest) {
        ExecutionContext executionContext = createExecutionContext(invokeRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<InvokeRequest> request = null;
        Response<InvokeResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new InvokeRequestMarshaller(protocolFactory)
                        .marshall(super.beforeMarshalling(invokeRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<InvokeResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(false)
                            .withHasStreamingSuccessResponse(false),
                            new InvokeResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <important>This API is deprecated. We recommend you use
     * <code>Invoke</code> API (see <a>Invoke</a>).</important>
     * <p>
     * Submits an invocation request to AWS Lambda. Upon receiving the request,
     * Lambda executes the specified function asynchronously. To see the logs
     * generated by the Lambda function execution, see the CloudWatch Logs
     * console.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:InvokeFunction</code> action.
     * </p>
     * 
     * @param invokeAsyncRequest
     * @return Result of the InvokeAsync operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidRequestContentException
     *         The request body could not be parsed as JSON.
     * @sample AWSLambda.InvokeAsync
     */
    @Override
    @Deprecated
    public InvokeAsyncResult invokeAsync(InvokeAsyncRequest invokeAsyncRequest) {
        ExecutionContext executionContext = createExecutionContext(invokeAsyncRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<InvokeAsyncRequest> request = null;
        Response<InvokeAsyncResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new InvokeAsyncRequestMarshaller(protocolFactory)
                        .marshall(super.beforeMarshalling(invokeAsyncRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<InvokeAsyncResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new InvokeAsyncResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Returns list of aliases created for a Lambda function. For each alias,
     * the response includes information such as the alias ARN, description,
     * alias name, and the function version to which it points. For more
     * information, see <a
     * href="http://docs.aws.amazon.com/lambda/latest/dg/aliases-intro.html"
     * >Introduction to AWS Lambda Aliases</a>.
     * </p>
     * <p>
     * This requires permission for the lambda:ListAliases action.
     * </p>
     * 
     * @param listAliasesRequest
     * @return Result of the ListAliases operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @sample AWSLambda.ListAliases
     */
    @Override
    public ListAliasesResult listAliases(ListAliasesRequest listAliasesRequest) {
        ExecutionContext executionContext = createExecutionContext(listAliasesRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<ListAliasesRequest> request = null;
        Response<ListAliasesResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new ListAliasesRequestMarshaller(protocolFactory)
                        .marshall(super.beforeMarshalling(listAliasesRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<ListAliasesResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new ListAliasesResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Returns a list of event source mappings you created using the
     * <code>CreateEventSourceMapping</code> (see
     * <a>CreateEventSourceMapping</a>).
     * </p>
     * <p>
     * For each mapping, the API returns configuration information. You can
     * optionally specify filters to retrieve specific event source mappings.
     * </p>
     * <p>
     * If you are using the versioning feature, you can get list of event source
     * mappings for a specific Lambda function version or an alias as described
     * in the <code>FunctionName</code> parameter. For information about the
     * versioning feature, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:ListEventSourceMappings</code> action.
     * </p>
     * 
     * @param listEventSourceMappingsRequest
     * @return Result of the ListEventSourceMappings operation returned by the
     *         service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @sample AWSLambda.ListEventSourceMappings
     */
    @Override
    public ListEventSourceMappingsResult listEventSourceMappings(
            ListEventSourceMappingsRequest listEventSourceMappingsRequest) {
        ExecutionContext executionContext = createExecutionContext(listEventSourceMappingsRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<ListEventSourceMappingsRequest> request = null;
        Response<ListEventSourceMappingsResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new ListEventSourceMappingsRequestMarshaller(
                        protocolFactory).marshall(super
                        .beforeMarshalling(listEventSourceMappingsRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<ListEventSourceMappingsResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new ListEventSourceMappingsResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    @Override
    public ListEventSourceMappingsResult listEventSourceMappings() {
        return listEventSourceMappings(new ListEventSourceMappingsRequest());
    }

    /**
     * <p>
     * Returns a list of your Lambda functions. For each function, the response
     * includes the function configuration information. You must use
     * <a>GetFunction</a> to retrieve the code for your function.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:ListFunctions</code> action.
     * </p>
     * <p>
     * If you are using versioning feature, the response returns list of $LATEST
     * versions of your functions. For information about the versioning feature,
     * see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * 
     * @param listFunctionsRequest
     * @return Result of the ListFunctions operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws TooManyRequestsException
     * @sample AWSLambda.ListFunctions
     */
    @Override
    public ListFunctionsResult listFunctions(
            ListFunctionsRequest listFunctionsRequest) {
        ExecutionContext executionContext = createExecutionContext(listFunctionsRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<ListFunctionsRequest> request = null;
        Response<ListFunctionsResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new ListFunctionsRequestMarshaller(protocolFactory)
                        .marshall(super.beforeMarshalling(listFunctionsRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<ListFunctionsResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new ListFunctionsResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    @Override
    public ListFunctionsResult listFunctions() {
        return listFunctions(new ListFunctionsRequest());
    }

    /**
     * <p>
     * List all versions of a function. For information about the versioning
     * feature, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * 
     * @param listVersionsByFunctionRequest
     * @return Result of the ListVersionsByFunction operation returned by the
     *         service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @sample AWSLambda.ListVersionsByFunction
     */
    @Override
    public ListVersionsByFunctionResult listVersionsByFunction(
            ListVersionsByFunctionRequest listVersionsByFunctionRequest) {
        ExecutionContext executionContext = createExecutionContext(listVersionsByFunctionRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<ListVersionsByFunctionRequest> request = null;
        Response<ListVersionsByFunctionResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new ListVersionsByFunctionRequestMarshaller(
                        protocolFactory).marshall(super
                        .beforeMarshalling(listVersionsByFunctionRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<ListVersionsByFunctionResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new ListVersionsByFunctionResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Publishes a version of your function from the current snapshot of
     * $LATEST. That is, AWS Lambda takes a snapshot of the function code and
     * configuration information from $LATEST and publishes a new version. The
     * code and configuration cannot be modified after publication. For
     * information about the versioning feature, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * 
     * @param publishVersionRequest
     * @return Result of the PublishVersion operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @throws CodeStorageExceededException
     *         You have exceeded your maximum total code size per account. <a
     *         href="http://docs.aws.amazon.com/lambda/latest/dg/limits.html">
     *         Limits</a>
     * @sample AWSLambda.PublishVersion
     */
    @Override
    public PublishVersionResult publishVersion(
            PublishVersionRequest publishVersionRequest) {
        ExecutionContext executionContext = createExecutionContext(publishVersionRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<PublishVersionRequest> request = null;
        Response<PublishVersionResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new PublishVersionRequestMarshaller(protocolFactory)
                        .marshall(super
                                .beforeMarshalling(publishVersionRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<PublishVersionResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new PublishVersionResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * You can remove individual permissions from an resource policy associated
     * with a Lambda function by providing a statement ID that you provided when
     * you added the permission.
     * </p>
     * <p>
     * If you are using versioning, the permissions you remove are specific to
     * the Lambda function version or alias you specify in the
     * <code>AddPermission</code> request via the <code>Qualifier</code>
     * parameter. For more information about versioning, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * Note that removal of a permission will cause an active event source to
     * lose permission to the function.
     * </p>
     * <p>
     * You need permission for the <code>lambda:RemovePermission</code> action.
     * </p>
     * 
     * @param removePermissionRequest
     * @return Result of the RemovePermission operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @sample AWSLambda.RemovePermission
     */
    @Override
    public RemovePermissionResult removePermission(
            RemovePermissionRequest removePermissionRequest) {
        ExecutionContext executionContext = createExecutionContext(removePermissionRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<RemovePermissionRequest> request = null;
        Response<RemovePermissionResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new RemovePermissionRequestMarshaller(protocolFactory)
                        .marshall(super
                                .beforeMarshalling(removePermissionRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<RemovePermissionResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new RemovePermissionResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Using this API you can update the function version to which the alias
     * points and the alias description. For more information, see <a
     * href="http://docs.aws.amazon.com/lambda/latest/dg/aliases-intro.html"
     * >Introduction to AWS Lambda Aliases</a>.
     * </p>
     * <p>
     * This requires permission for the lambda:UpdateAlias action.
     * </p>
     * 
     * @param updateAliasRequest
     * @return Result of the UpdateAlias operation returned by the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @sample AWSLambda.UpdateAlias
     */
    @Override
    public UpdateAliasResult updateAlias(UpdateAliasRequest updateAliasRequest) {
        ExecutionContext executionContext = createExecutionContext(updateAliasRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<UpdateAliasRequest> request = null;
        Response<UpdateAliasResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new UpdateAliasRequestMarshaller(protocolFactory)
                        .marshall(super.beforeMarshalling(updateAliasRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<UpdateAliasResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new UpdateAliasResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * You can update an event source mapping. This is useful if you want to
     * change the parameters of the existing mapping without losing your
     * position in the stream. You can change which function will receive the
     * stream records, but to change the stream itself, you must create a new
     * mapping.
     * </p>
     * <p>
     * If you are using the versioning feature, you can update the event source
     * mapping to map to a specific Lambda function version or alias as
     * described in the <code>FunctionName</code> parameter. For information
     * about the versioning feature, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * If you disable the event source mapping, AWS Lambda stops polling. If you
     * enable again, it will resume polling from the time it had stopped
     * polling, so you don't lose processing of any records. However, if you
     * delete event source mapping and create it again, it will reset.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:UpdateEventSourceMapping</code> action.
     * </p>
     * 
     * @param updateEventSourceMappingRequest
     * @return Result of the UpdateEventSourceMapping operation returned by the
     *         service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @throws ResourceConflictException
     *         The resource already exists.
     * @sample AWSLambda.UpdateEventSourceMapping
     */
    @Override
    public UpdateEventSourceMappingResult updateEventSourceMapping(
            UpdateEventSourceMappingRequest updateEventSourceMappingRequest) {
        ExecutionContext executionContext = createExecutionContext(updateEventSourceMappingRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<UpdateEventSourceMappingRequest> request = null;
        Response<UpdateEventSourceMappingResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new UpdateEventSourceMappingRequestMarshaller(
                        protocolFactory).marshall(super
                        .beforeMarshalling(updateEventSourceMappingRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<UpdateEventSourceMappingResult>> responseHandler = protocolFactory
                    .createResponseHandler(
                            new JsonOperationMetadata().withPayloadJson(true)
                                    .withHasStreamingSuccessResponse(false),
                            new UpdateEventSourceMappingResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Updates the code for the specified Lambda function. This operation must
     * only be used on an existing Lambda function and cannot be used to update
     * the function configuration.
     * </p>
     * <p>
     * If you are using the versioning feature, note this API will always update
     * the $LATEST version of your Lambda function. For information about the
     * versioning feature, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:UpdateFunctionCode</code> action.
     * </p>
     * 
     * @param updateFunctionCodeRequest
     * @return Result of the UpdateFunctionCode operation returned by the
     *         service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @throws CodeStorageExceededException
     *         You have exceeded your maximum total code size per account. <a
     *         href="http://docs.aws.amazon.com/lambda/latest/dg/limits.html">
     *         Limits</a>
     * @sample AWSLambda.UpdateFunctionCode
     */
    @Override
    public UpdateFunctionCodeResult updateFunctionCode(
            UpdateFunctionCodeRequest updateFunctionCodeRequest) {
        ExecutionContext executionContext = createExecutionContext(updateFunctionCodeRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<UpdateFunctionCodeRequest> request = null;
        Response<UpdateFunctionCodeResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new UpdateFunctionCodeRequestMarshaller(
                        protocolFactory).marshall(super
                        .beforeMarshalling(updateFunctionCodeRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<UpdateFunctionCodeResult>> responseHandler = protocolFactory
                    .createResponseHandler(new JsonOperationMetadata()
                            .withPayloadJson(true)
                            .withHasStreamingSuccessResponse(false),
                            new UpdateFunctionCodeResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * <p>
     * Updates the configuration parameters for the specified Lambda function by
     * using the values provided in the request. You provide only the parameters
     * you want to change. This operation must only be used on an existing
     * Lambda function and cannot be used to update the function's code.
     * </p>
     * <p>
     * If you are using the versioning feature, note this API will always update
     * the $LATEST version of your Lambda function. For information about the
     * versioning feature, see <a href=
     * "http://docs.aws.amazon.com/lambda/latest/dg/versioning-aliases.html">AWS
     * Lambda Function Versioning and Aliases</a>.
     * </p>
     * <p>
     * This operation requires permission for the
     * <code>lambda:UpdateFunctionConfiguration</code> action.
     * </p>
     * 
     * @param updateFunctionConfigurationRequest
     * @return Result of the UpdateFunctionConfiguration operation returned by
     *         the service.
     * @throws ServiceException
     *         The AWS Lambda service encountered an internal error.
     * @throws ResourceNotFoundException
     *         The resource (for example, a Lambda function or access policy
     *         statement) specified in the request does not exist.
     * @throws InvalidParameterValueException
     *         One of the parameters in the request is invalid. For example, if
     *         you provided an IAM role for AWS Lambda to assume in the
     *         <code>CreateFunction</code> or the
     *         <code>UpdateFunctionConfiguration</code> API, that AWS Lambda is
     *         unable to assume you will get this exception.
     * @throws TooManyRequestsException
     * @sample AWSLambda.UpdateFunctionConfiguration
     */
    @Override
    public UpdateFunctionConfigurationResult updateFunctionConfiguration(
            UpdateFunctionConfigurationRequest updateFunctionConfigurationRequest) {
        ExecutionContext executionContext = createExecutionContext(updateFunctionConfigurationRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext
                .getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<UpdateFunctionConfigurationRequest> request = null;
        Response<UpdateFunctionConfigurationResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new UpdateFunctionConfigurationRequestMarshaller(
                        protocolFactory).marshall(super
                        .beforeMarshalling(updateFunctionConfigurationRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            HttpResponseHandler<AmazonWebServiceResponse<UpdateFunctionConfigurationResult>> responseHandler = protocolFactory
                    .createResponseHandler(
                            new JsonOperationMetadata().withPayloadJson(true)
                                    .withHasStreamingSuccessResponse(false),
                            new UpdateFunctionConfigurationResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }

    /**
     * Returns additional metadata for a previously executed successful,
     * request, typically used for debugging issues where a service isn't acting
     * as expected. This data isn't considered part of the result data returned
     * by an operation, so it's available through this separate, diagnostic
     * interface.
     * <p>
     * Response metadata is only cached for a limited period of time, so if you
     * need to access this extra diagnostic information for an executed request,
     * you should use this method to retrieve it as soon as possible after
     * executing the request.
     *
     * @param request
     *        The originally executed request
     *
     * @return The response metadata for the specified request, or null if none
     *         is available.
     */
    public ResponseMetadata getCachedResponseMetadata(
            AmazonWebServiceRequest request) {
        return client.getResponseMetadataForRequest(request);
    }

    /**
     * Normal invoke with authentication. Credentials are required and may be
     * overriden at the request level.
     **/
    private <X, Y extends AmazonWebServiceRequest> Response<X> invoke(
            Request<Y> request,
            HttpResponseHandler<AmazonWebServiceResponse<X>> responseHandler,
            ExecutionContext executionContext) {

        executionContext.setCredentialsProvider(CredentialUtils
                .getCredentialsProvider(request.getOriginalRequest(),
                        awsCredentialsProvider));

        return doInvoke(request, responseHandler, executionContext);
    }

    /**
     * Invoke with no authentication. Credentials are not required and any
     * credentials set on the client or request will be ignored for this
     * operation.
     **/
    private <X, Y extends AmazonWebServiceRequest> Response<X> anonymousInvoke(
            Request<Y> request,
            HttpResponseHandler<AmazonWebServiceResponse<X>> responseHandler,
            ExecutionContext executionContext) {

        return doInvoke(request, responseHandler, executionContext);
    }

    /**
     * Invoke the request using the http client. Assumes credentials (or lack
     * thereof) have been configured in the ExecutionContext beforehand.
     **/
    private <X, Y extends AmazonWebServiceRequest> Response<X> doInvoke(
            Request<Y> request,
            HttpResponseHandler<AmazonWebServiceResponse<X>> responseHandler,
            ExecutionContext executionContext) {
        request.setEndpoint(endpoint);
        request.setTimeOffset(timeOffset);

        HttpResponseHandler<AmazonServiceException> errorResponseHandler = protocolFactory
                .createErrorResponseHandler(new JsonErrorResponseMetadata());

        return client.execute(request, responseHandler, errorResponseHandler,
                executionContext);
    }

}