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/*
* Copyright 2015-2020 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.dynamodbv2;
import org.w3c.dom.*;
import java.net.*;
import java.util.*;
import javax.annotation.Generated;
import org.apache.commons.logging.*;
import com.amazonaws.*;
import com.amazonaws.annotation.SdkInternalApi;
import com.amazonaws.auth.*;
import com.amazonaws.handlers.*;
import com.amazonaws.http.*;
import com.amazonaws.internal.*;
import com.amazonaws.internal.auth.*;
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.client.AwsSyncClientParams;
import com.amazonaws.client.builder.AdvancedConfig;
import com.amazonaws.services.dynamodbv2.AmazonDynamoDBStreamsClientBuilder;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.services.dynamodbv2.model.*;
import com.amazonaws.services.dynamodbv2.model.transform.*;
/**
* Client for accessing Amazon DynamoDB Streams. All service calls made using this client are blocking, and will not
* return until the service call completes.
*
* Amazon DynamoDB
*
* Amazon DynamoDB Streams provides API actions for accessing streams and processing stream records. To learn more about
* application development with Streams, see Capturing Table Activity with
* DynamoDB Streams in the Amazon DynamoDB Developer Guide.
*
*/
@ThreadSafe
@Generated("com.amazonaws:aws-java-sdk-code-generator")
public class AmazonDynamoDBStreamsClient extends AmazonWebServiceClient implements AmazonDynamoDBStreams {
/** Provider for AWS credentials. */
private final AWSCredentialsProvider awsCredentialsProvider;
private static final Log log = LogFactory.getLog(AmazonDynamoDBStreams.class);
/** Default signing name for the service. */
private static final String DEFAULT_SIGNING_NAME = "dynamodb";
/** Client configuration factory providing ClientConfigurations tailored to this client */
protected static final ClientConfigurationFactory configFactory = new ClientConfigurationFactory();
private final AdvancedConfig advancedConfig;
private static final com.amazonaws.protocol.json.SdkJsonProtocolFactory protocolFactory = new com.amazonaws.protocol.json.SdkJsonProtocolFactory(
new JsonClientMetadata()
.withProtocolVersion("1.0")
.withSupportsCbor(false)
.withSupportsIon(false)
.addErrorMetadata(
new JsonErrorShapeMetadata().withErrorCode("TrimmedDataAccessException").withExceptionUnmarshaller(
com.amazonaws.services.dynamodbv2.model.transform.TrimmedDataAccessExceptionUnmarshaller.getInstance()))
.addErrorMetadata(
new JsonErrorShapeMetadata().withErrorCode("ResourceNotFoundException").withExceptionUnmarshaller(
com.amazonaws.services.dynamodbv2.model.transform.ResourceNotFoundExceptionUnmarshaller.getInstance()))
.addErrorMetadata(
new JsonErrorShapeMetadata().withErrorCode("ExpiredIteratorException").withExceptionUnmarshaller(
com.amazonaws.services.dynamodbv2.model.transform.ExpiredIteratorExceptionUnmarshaller.getInstance()))
.addErrorMetadata(
new JsonErrorShapeMetadata().withErrorCode("InternalServerError").withExceptionUnmarshaller(
com.amazonaws.services.dynamodbv2.model.transform.InternalServerErrorExceptionUnmarshaller.getInstance()))
.addErrorMetadata(
new JsonErrorShapeMetadata().withErrorCode("LimitExceededException").withExceptionUnmarshaller(
com.amazonaws.services.dynamodbv2.model.transform.LimitExceededExceptionUnmarshaller.getInstance()))
.withBaseServiceExceptionClass(com.amazonaws.services.dynamodbv2.model.AmazonDynamoDBException.class));
/**
* Constructs a new client to invoke service methods on Amazon DynamoDB Streams. A credentials provider chain will
* be used that searches for credentials in this order:
*
* - Environment Variables - AWS_ACCESS_KEY_ID and AWS_SECRET_KEY
* - Java System Properties - aws.accessKeyId and aws.secretKey
* - Instance profile credentials delivered through the Amazon EC2 metadata service
*
*
*
* All service calls made using this new client object are blocking, and will not return until the service call
* completes.
*
* @see DefaultAWSCredentialsProviderChain
* @deprecated use {@link AmazonDynamoDBStreamsClientBuilder#defaultClient()}
*/
@Deprecated
public AmazonDynamoDBStreamsClient() {
this(DefaultAWSCredentialsProviderChain.getInstance(), configFactory.getConfig());
}
/**
* Constructs a new client to invoke service methods on Amazon DynamoDB Streams. A credentials provider chain will
* be used that searches for credentials in this order:
*
* - Environment Variables - AWS_ACCESS_KEY_ID and AWS_SECRET_KEY
* - Java System Properties - aws.accessKeyId and aws.secretKey
* - Instance profile credentials delivered through the Amazon EC2 metadata service
*
*
*
* 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 Amazon DynamoDB Streams (ex:
* proxy settings, retry counts, etc.).
*
* @see DefaultAWSCredentialsProviderChain
* @deprecated use {@link AmazonDynamoDBStreamsClientBuilder#withClientConfiguration(ClientConfiguration)}
*/
@Deprecated
public AmazonDynamoDBStreamsClient(ClientConfiguration clientConfiguration) {
this(DefaultAWSCredentialsProviderChain.getInstance(), clientConfiguration);
}
/**
* Constructs a new client to invoke service methods on Amazon DynamoDB Streams using the specified AWS account
* credentials.
*
*
* 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.
* @deprecated use {@link AmazonDynamoDBStreamsClientBuilder#withCredentials(AWSCredentialsProvider)} for example:
* {@code AmazonDynamoDBStreamsClientBuilder.standard().withCredentials(new AWSStaticCredentialsProvider(awsCredentials)).build();}
*/
@Deprecated
public AmazonDynamoDBStreamsClient(AWSCredentials awsCredentials) {
this(awsCredentials, configFactory.getConfig());
}
/**
* Constructs a new client to invoke service methods on Amazon DynamoDB Streams using the specified AWS account
* credentials and client configuration options.
*
*
* 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 Amazon DynamoDB Streams (ex:
* proxy settings, retry counts, etc.).
* @deprecated use {@link AmazonDynamoDBStreamsClientBuilder#withCredentials(AWSCredentialsProvider)} and
* {@link AmazonDynamoDBStreamsClientBuilder#withClientConfiguration(ClientConfiguration)}
*/
@Deprecated
public AmazonDynamoDBStreamsClient(AWSCredentials awsCredentials, ClientConfiguration clientConfiguration) {
super(clientConfiguration);
this.awsCredentialsProvider = new StaticCredentialsProvider(awsCredentials);
this.advancedConfig = AdvancedConfig.EMPTY;
init();
}
/**
* Constructs a new client to invoke service methods on Amazon DynamoDB Streams using the specified AWS account
* credentials provider.
*
*
* 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.
* @deprecated use {@link AmazonDynamoDBStreamsClientBuilder#withCredentials(AWSCredentialsProvider)}
*/
@Deprecated
public AmazonDynamoDBStreamsClient(AWSCredentialsProvider awsCredentialsProvider) {
this(awsCredentialsProvider, configFactory.getConfig());
}
/**
* Constructs a new client to invoke service methods on Amazon DynamoDB Streams using the specified AWS account
* credentials provider and client configuration options.
*
*
* 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 Amazon DynamoDB Streams (ex:
* proxy settings, retry counts, etc.).
* @deprecated use {@link AmazonDynamoDBStreamsClientBuilder#withCredentials(AWSCredentialsProvider)} and
* {@link AmazonDynamoDBStreamsClientBuilder#withClientConfiguration(ClientConfiguration)}
*/
@Deprecated
public AmazonDynamoDBStreamsClient(AWSCredentialsProvider awsCredentialsProvider, ClientConfiguration clientConfiguration) {
this(awsCredentialsProvider, clientConfiguration, null);
}
/**
* Constructs a new client to invoke service methods on Amazon DynamoDB Streams using the specified AWS account
* credentials provider, client configuration options, and request metric collector.
*
*
* 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 Amazon DynamoDB Streams (ex:
* proxy settings, retry counts, etc.).
* @param requestMetricCollector
* optional request metric collector
* @deprecated use {@link AmazonDynamoDBStreamsClientBuilder#withCredentials(AWSCredentialsProvider)} and
* {@link AmazonDynamoDBStreamsClientBuilder#withClientConfiguration(ClientConfiguration)} and
* {@link AmazonDynamoDBStreamsClientBuilder#withMetricsCollector(RequestMetricCollector)}
*/
@Deprecated
public AmazonDynamoDBStreamsClient(AWSCredentialsProvider awsCredentialsProvider, ClientConfiguration clientConfiguration,
RequestMetricCollector requestMetricCollector) {
super(clientConfiguration, requestMetricCollector);
this.awsCredentialsProvider = awsCredentialsProvider;
this.advancedConfig = AdvancedConfig.EMPTY;
init();
}
public static AmazonDynamoDBStreamsClientBuilder builder() {
return AmazonDynamoDBStreamsClientBuilder.standard();
}
/**
* Constructs a new client to invoke service methods on Amazon DynamoDB Streams using the specified parameters.
*
*
* All service calls made using this new client object are blocking, and will not return until the service call
* completes.
*
* @param clientParams
* Object providing client parameters.
*/
AmazonDynamoDBStreamsClient(AwsSyncClientParams clientParams) {
this(clientParams, false);
}
/**
* Constructs a new client to invoke service methods on Amazon DynamoDB Streams using the specified parameters.
*
*
* All service calls made using this new client object are blocking, and will not return until the service call
* completes.
*
* @param clientParams
* Object providing client parameters.
*/
AmazonDynamoDBStreamsClient(AwsSyncClientParams clientParams, boolean endpointDiscoveryEnabled) {
super(clientParams);
this.awsCredentialsProvider = clientParams.getCredentialsProvider();
this.advancedConfig = clientParams.getAdvancedConfig();
init();
}
private void init() {
setServiceNameIntern(DEFAULT_SIGNING_NAME);
setEndpointPrefix(ENDPOINT_PREFIX);
// calling this.setEndPoint(...) will also modify the signer accordingly
setEndpoint("https://streams.dynamodb.us-east-1.amazonaws.com");
HandlerChainFactory chainFactory = new HandlerChainFactory();
requestHandler2s.addAll(chainFactory.newRequestHandlerChain("/com/amazonaws/services/dynamodbv2/request.handlers"));
requestHandler2s.addAll(chainFactory.newRequestHandler2Chain("/com/amazonaws/services/dynamodbv2/request.handler2s"));
requestHandler2s.addAll(chainFactory.getGlobalHandlers());
}
/**
*
* Returns information about a stream, including the current status of the stream, its Amazon Resource Name (ARN),
* the composition of its shards, and its corresponding DynamoDB table.
*
*
*
* You can call DescribeStream at a maximum rate of 10 times per second.
*
*
*
* Each shard in the stream has a SequenceNumberRange associated with it. If the
* SequenceNumberRange has a StartingSequenceNumber but no
* EndingSequenceNumber, then the shard is still open (able to receive more stream records). If both
* StartingSequenceNumber and EndingSequenceNumber are present, then that shard is closed
* and can no longer receive more data.
*
*
* @param describeStreamRequest
* Represents the input of a DescribeStream operation.
* @return Result of the DescribeStream operation returned by the service.
* @throws ResourceNotFoundException
* The operation tried to access a nonexistent table or index. The resource might not be specified
* correctly, or its status might not be ACTIVE.
* @throws InternalServerErrorException
* An error occurred on the server side.
* @sample AmazonDynamoDBStreams.DescribeStream
* @see AWS API Documentation
*/
@Override
public DescribeStreamResult describeStream(DescribeStreamRequest request) {
request = beforeClientExecution(request);
return executeDescribeStream(request);
}
@SdkInternalApi
final DescribeStreamResult executeDescribeStream(DescribeStreamRequest describeStreamRequest) {
ExecutionContext executionContext = createExecutionContext(describeStreamRequest);
AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
awsRequestMetrics.startEvent(Field.ClientExecuteTime);
Request request = null;
Response response = null;
try {
awsRequestMetrics.startEvent(Field.RequestMarshallTime);
try {
request = new DescribeStreamRequestProtocolMarshaller(protocolFactory).marshall(super.beforeMarshalling(describeStreamRequest));
// Binds the request metrics to the current request.
request.setAWSRequestMetrics(awsRequestMetrics);
request.addHandlerContext(HandlerContextKey.ENDPOINT_OVERRIDDEN, isEndpointOverridden());
request.addHandlerContext(HandlerContextKey.SIGNING_REGION, getSigningRegion());
request.addHandlerContext(HandlerContextKey.SERVICE_ID, "DynamoDB Streams");
request.addHandlerContext(HandlerContextKey.OPERATION_NAME, "DescribeStream");
request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);
} finally {
awsRequestMetrics.endEvent(Field.RequestMarshallTime);
}
HttpResponseHandler> responseHandler = protocolFactory.createResponseHandler(
new JsonOperationMetadata().withPayloadJson(true).withHasStreamingSuccessResponse(false), new DescribeStreamResultJsonUnmarshaller());
response = invoke(request, responseHandler, executionContext);
return response.getAwsResponse();
} finally {
endClientExecution(awsRequestMetrics, request, response);
}
}
/**
*
* Retrieves the stream records from a given shard.
*
*
* Specify a shard iterator using the ShardIterator parameter. The shard iterator specifies the
* position in the shard from which you want to start reading stream records sequentially. If there are no stream
* records available in the portion of the shard that the iterator points to, GetRecords returns an
* empty list. Note that it might take multiple calls to get to a portion of the shard that contains stream records.
*
*
*
* GetRecords can retrieve a maximum of 1 MB of data or 1000 stream records, whichever comes first.
*
*
*
* @param getRecordsRequest
* Represents the input of a GetRecords operation.
* @return Result of the GetRecords operation returned by the service.
* @throws ResourceNotFoundException
* The operation tried to access a nonexistent table or index. The resource might not be specified
* correctly, or its status might not be ACTIVE.
* @throws LimitExceededException
* There is no limit to the number of daily on-demand backups that can be taken.
*
* Up to 50 simultaneous table operations are allowed per account. These operations include
* CreateTable, UpdateTable, DeleteTable,
* UpdateTimeToLive, RestoreTableFromBackup, and
* RestoreTableToPointInTime.
*
*
* The only exception is when you are creating a table with one or more secondary indexes. You can have up
* to 25 such requests running at a time; however, if the table or index specifications are complex,
* DynamoDB might temporarily reduce the number of concurrent operations.
*
*
* There is a soft account quota of 256 tables.
* @throws InternalServerErrorException
* An error occurred on the server side.
* @throws ExpiredIteratorException
* The shard iterator has expired and can no longer be used to retrieve stream records. A shard iterator
* expires 15 minutes after it is retrieved using the GetShardIterator action.
* @throws TrimmedDataAccessException
* The operation attempted to read past the oldest stream record in a shard.
*
*
* In DynamoDB Streams, there is a 24 hour limit on data retention. Stream records whose age exceeds this
* limit are subject to removal (trimming) from the stream. You might receive a TrimmedDataAccessException
* if:
*
*
* -
*
* You request a shard iterator with a sequence number older than the trim point (24 hours).
*
*
* -
*
* You obtain a shard iterator, but before you use the iterator in a GetRecords request, a
* stream record in the shard exceeds the 24 hour period and is trimmed. This causes the iterator to access
* a record that no longer exists.
*
*
* @sample AmazonDynamoDBStreams.GetRecords
* @see AWS
* API Documentation
*/
@Override
public GetRecordsResult getRecords(GetRecordsRequest request) {
request = beforeClientExecution(request);
return executeGetRecords(request);
}
@SdkInternalApi
final GetRecordsResult executeGetRecords(GetRecordsRequest getRecordsRequest) {
ExecutionContext executionContext = createExecutionContext(getRecordsRequest);
AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
awsRequestMetrics.startEvent(Field.ClientExecuteTime);
Request request = null;
Response response = null;
try {
awsRequestMetrics.startEvent(Field.RequestMarshallTime);
try {
request = new GetRecordsRequestProtocolMarshaller(protocolFactory).marshall(super.beforeMarshalling(getRecordsRequest));
// Binds the request metrics to the current request.
request.setAWSRequestMetrics(awsRequestMetrics);
request.addHandlerContext(HandlerContextKey.ENDPOINT_OVERRIDDEN, isEndpointOverridden());
request.addHandlerContext(HandlerContextKey.SIGNING_REGION, getSigningRegion());
request.addHandlerContext(HandlerContextKey.SERVICE_ID, "DynamoDB Streams");
request.addHandlerContext(HandlerContextKey.OPERATION_NAME, "GetRecords");
request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);
} finally {
awsRequestMetrics.endEvent(Field.RequestMarshallTime);
}
HttpResponseHandler> responseHandler = protocolFactory.createResponseHandler(new JsonOperationMetadata()
.withPayloadJson(true).withHasStreamingSuccessResponse(false), new GetRecordsResultJsonUnmarshaller());
response = invoke(request, responseHandler, executionContext);
return response.getAwsResponse();
} finally {
endClientExecution(awsRequestMetrics, request, response);
}
}
/**
*
* Returns a shard iterator. A shard iterator provides information about how to retrieve the stream records from
* within a shard. Use the shard iterator in a subsequent GetRecords request to read the stream records
* from the shard.
*
*
*
* A shard iterator expires 15 minutes after it is returned to the requester.
*
*
*
* @param getShardIteratorRequest
* Represents the input of a GetShardIterator operation.
* @return Result of the GetShardIterator operation returned by the service.
* @throws ResourceNotFoundException
* The operation tried to access a nonexistent table or index. The resource might not be specified
* correctly, or its status might not be ACTIVE.
* @throws InternalServerErrorException
* An error occurred on the server side.
* @throws TrimmedDataAccessException
* The operation attempted to read past the oldest stream record in a shard.
*
* In DynamoDB Streams, there is a 24 hour limit on data retention. Stream records whose age exceeds this
* limit are subject to removal (trimming) from the stream. You might receive a TrimmedDataAccessException
* if:
*
*
* -
*
* You request a shard iterator with a sequence number older than the trim point (24 hours).
*
*
* -
*
* You obtain a shard iterator, but before you use the iterator in a GetRecords request, a
* stream record in the shard exceeds the 24 hour period and is trimmed. This causes the iterator to access
* a record that no longer exists.
*
*
* @sample AmazonDynamoDBStreams.GetShardIterator
* @see AWS API Documentation
*/
@Override
public GetShardIteratorResult getShardIterator(GetShardIteratorRequest request) {
request = beforeClientExecution(request);
return executeGetShardIterator(request);
}
@SdkInternalApi
final GetShardIteratorResult executeGetShardIterator(GetShardIteratorRequest getShardIteratorRequest) {
ExecutionContext executionContext = createExecutionContext(getShardIteratorRequest);
AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
awsRequestMetrics.startEvent(Field.ClientExecuteTime);
Request request = null;
Response response = null;
try {
awsRequestMetrics.startEvent(Field.RequestMarshallTime);
try {
request = new GetShardIteratorRequestProtocolMarshaller(protocolFactory).marshall(super.beforeMarshalling(getShardIteratorRequest));
// Binds the request metrics to the current request.
request.setAWSRequestMetrics(awsRequestMetrics);
request.addHandlerContext(HandlerContextKey.ENDPOINT_OVERRIDDEN, isEndpointOverridden());
request.addHandlerContext(HandlerContextKey.SIGNING_REGION, getSigningRegion());
request.addHandlerContext(HandlerContextKey.SERVICE_ID, "DynamoDB Streams");
request.addHandlerContext(HandlerContextKey.OPERATION_NAME, "GetShardIterator");
request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);
} finally {
awsRequestMetrics.endEvent(Field.RequestMarshallTime);
}
HttpResponseHandler> responseHandler = protocolFactory.createResponseHandler(
new JsonOperationMetadata().withPayloadJson(true).withHasStreamingSuccessResponse(false), new GetShardIteratorResultJsonUnmarshaller());
response = invoke(request, responseHandler, executionContext);
return response.getAwsResponse();
} finally {
endClientExecution(awsRequestMetrics, request, response);
}
}
/**
*
* Returns an array of stream ARNs associated with the current account and endpoint. If the TableName
* parameter is present, then ListStreams will return only the streams ARNs for that table.
*
*
*
* You can call ListStreams at a maximum rate of 5 times per second.
*
*
*
* @param listStreamsRequest
* Represents the input of a ListStreams operation.
* @return Result of the ListStreams operation returned by the service.
* @throws ResourceNotFoundException
* The operation tried to access a nonexistent table or index. The resource might not be specified
* correctly, or its status might not be ACTIVE.
* @throws InternalServerErrorException
* An error occurred on the server side.
* @sample AmazonDynamoDBStreams.ListStreams
* @see AWS
* API Documentation
*/
@Override
public ListStreamsResult listStreams(ListStreamsRequest request) {
request = beforeClientExecution(request);
return executeListStreams(request);
}
@SdkInternalApi
final ListStreamsResult executeListStreams(ListStreamsRequest listStreamsRequest) {
ExecutionContext executionContext = createExecutionContext(listStreamsRequest);
AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
awsRequestMetrics.startEvent(Field.ClientExecuteTime);
Request request = null;
Response response = null;
try {
awsRequestMetrics.startEvent(Field.RequestMarshallTime);
try {
request = new ListStreamsRequestProtocolMarshaller(protocolFactory).marshall(super.beforeMarshalling(listStreamsRequest));
// Binds the request metrics to the current request.
request.setAWSRequestMetrics(awsRequestMetrics);
request.addHandlerContext(HandlerContextKey.ENDPOINT_OVERRIDDEN, isEndpointOverridden());
request.addHandlerContext(HandlerContextKey.SIGNING_REGION, getSigningRegion());
request.addHandlerContext(HandlerContextKey.SERVICE_ID, "DynamoDB Streams");
request.addHandlerContext(HandlerContextKey.OPERATION_NAME, "ListStreams");
request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);
} finally {
awsRequestMetrics.endEvent(Field.RequestMarshallTime);
}
HttpResponseHandler> responseHandler = protocolFactory.createResponseHandler(
new JsonOperationMetadata().withPayloadJson(true).withHasStreamingSuccessResponse(false), new ListStreamsResultJsonUnmarshaller());
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.
*
* 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 Response invoke(Request request, HttpResponseHandler> responseHandler,
ExecutionContext executionContext) {
return invoke(request, responseHandler, executionContext, null, null);
}
/**
* Normal invoke with authentication. Credentials are required and may be overriden at the request level.
**/
private Response invoke(Request request, HttpResponseHandler> responseHandler,
ExecutionContext executionContext, URI cachedEndpoint, URI uriFromEndpointTrait) {
executionContext.setCredentialsProvider(CredentialUtils.getCredentialsProvider(request.getOriginalRequest(), awsCredentialsProvider));
return doInvoke(request, responseHandler, executionContext, cachedEndpoint, uriFromEndpointTrait);
}
/**
* Invoke with no authentication. Credentials are not required and any credentials set on the client or request will
* be ignored for this operation.
**/
private Response anonymousInvoke(Request request,
HttpResponseHandler> responseHandler, ExecutionContext executionContext) {
return doInvoke(request, responseHandler, executionContext, null, null);
}
/**
* Invoke the request using the http client. Assumes credentials (or lack thereof) have been configured in the
* ExecutionContext beforehand.
**/
private Response doInvoke(Request request, HttpResponseHandler> responseHandler,
ExecutionContext executionContext, URI discoveredEndpoint, URI uriFromEndpointTrait) {
if (discoveredEndpoint != null) {
request.setEndpoint(discoveredEndpoint);
request.getOriginalRequest().getRequestClientOptions().appendUserAgent("endpoint-discovery");
} else if (uriFromEndpointTrait != null) {
request.setEndpoint(uriFromEndpointTrait);
} else {
request.setEndpoint(endpoint);
}
request.setTimeOffset(timeOffset);
HttpResponseHandler errorResponseHandler = protocolFactory.createErrorResponseHandler(new JsonErrorResponseMetadata());
return client.execute(request, responseHandler, errorResponseHandler, executionContext);
}
@com.amazonaws.annotation.SdkInternalApi
static com.amazonaws.protocol.json.SdkJsonProtocolFactory getProtocolFactory() {
return protocolFactory;
}
@Override
public void shutdown() {
super.shutdown();
}
}