com.amazonaws.services.dynamodbv2.AmazonDynamoDBStreamsAsyncClient Maven / Gradle / Ivy
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/*
* Copyright 2011-2016 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.dynamodbv2;
import com.amazonaws.services.dynamodbv2.model.*;
import com.amazonaws.client.AwsAsyncClientParams;
import com.amazonaws.annotation.ThreadSafe;
/**
* Interface for accessing Amazon DynamoDB Streams asynchronously. Each asynchronous method will return a Java Future
* object representing the asynchronous operation; overloads which accept an {@code AsyncHandler} can be used to receive
* notification when an asynchronous operation 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.
*
*
* The following are short descriptions of each low-level DynamoDB Streams action:
*
*
* -
*
* DescribeStream - Returns detailed information about a particular stream.
*
*
* -
*
* GetRecords - Retrieves the stream records from within a shard.
*
*
* -
*
* GetShardIterator - Returns information on how to retrieve the streams record from a shard with a given shard
* ID.
*
*
* -
*
* ListStreams - Returns a list of all the streams associated with the current AWS account and endpoint.
*
*
*
*/
@ThreadSafe
public class AmazonDynamoDBStreamsAsyncClient extends AmazonDynamoDBStreamsClient implements AmazonDynamoDBStreamsAsync {
private static final int DEFAULT_THREAD_POOL_SIZE = 50;
private final java.util.concurrent.ExecutorService executorService;
/**
* Constructs a new asynchronous 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
* - Credential profiles file at the default location (~/.aws/credentials) shared by all AWS SDKs and the AWS CLI
* - Instance profile credentials delivered through the Amazon EC2 metadata service
*
*
* Asynchronous methods are delegated to a fixed-size thread pool containing 50 threads (to match the default
* maximum number of concurrent connections to the service).
*
* @see com.amazonaws.auth.DefaultAWSCredentialsProviderChain
* @see java.util.concurrent.Executors#newFixedThreadPool(int)
*/
public AmazonDynamoDBStreamsAsyncClient() {
this(com.amazonaws.auth.DefaultAWSCredentialsProviderChain.getInstance());
}
/**
* Constructs a new asynchronous 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
* - Credential profiles file at the default location (~/.aws/credentials) shared by all AWS SDKs and the AWS CLI
* - Instance profile credentials delivered through the Amazon EC2 metadata service
*
*
* Asynchronous methods are delegated to a fixed-size thread pool containing a number of threads equal to the
* maximum number of concurrent connections configured via {@code ClientConfiguration.getMaxConnections()}.
*
* @param clientConfiguration
* The client configuration options controlling how this client connects to Amazon DynamoDB Streams (ex:
* proxy settings, retry counts, etc).
*
* @see com.amazonaws.auth.DefaultAWSCredentialsProviderChain
* @see java.util.concurrent.Executors#newFixedThreadPool(int)
*/
public AmazonDynamoDBStreamsAsyncClient(com.amazonaws.ClientConfiguration clientConfiguration) {
this(com.amazonaws.auth.DefaultAWSCredentialsProviderChain.getInstance(), clientConfiguration, java.util.concurrent.Executors
.newFixedThreadPool(clientConfiguration.getMaxConnections()));
}
/**
* Constructs a new asynchronous client to invoke service methods on Amazon DynamoDB Streams using the specified AWS
* account credentials.
*
* Asynchronous methods are delegated to a fixed-size thread pool containing 50 threads (to match the default
* maximum number of concurrent connections to the service).
*
* @param awsCredentials
* The AWS credentials (access key ID and secret key) to use when authenticating with AWS services.
* @see java.util.concurrent.Executors#newFixedThreadPool(int)
*/
public AmazonDynamoDBStreamsAsyncClient(com.amazonaws.auth.AWSCredentials awsCredentials) {
this(awsCredentials, java.util.concurrent.Executors.newFixedThreadPool(DEFAULT_THREAD_POOL_SIZE));
}
/**
* Constructs a new asynchronous client to invoke service methods on Amazon DynamoDB Streams using the specified AWS
* account credentials and executor service. Default client settings will be used.
*
* @param awsCredentials
* The AWS credentials (access key ID and secret key) to use when authenticating with AWS services.
* @param executorService
* The executor service by which all asynchronous requests will be executed.
*/
public AmazonDynamoDBStreamsAsyncClient(com.amazonaws.auth.AWSCredentials awsCredentials, java.util.concurrent.ExecutorService executorService) {
this(awsCredentials, configFactory.getConfig(), executorService);
}
/**
* Constructs a new asynchronous client to invoke service methods on Amazon DynamoDB Streams using the specified AWS
* account credentials, executor service, and client configuration options.
*
* @param awsCredentials
* The AWS credentials (access key ID and secret key) to use when authenticating with AWS services.
* @param clientConfiguration
* Client configuration options (ex: max retry limit, proxy settings, etc).
* @param executorService
* The executor service by which all asynchronous requests will be executed.
*/
public AmazonDynamoDBStreamsAsyncClient(com.amazonaws.auth.AWSCredentials awsCredentials, com.amazonaws.ClientConfiguration clientConfiguration,
java.util.concurrent.ExecutorService executorService) {
super(awsCredentials, clientConfiguration);
this.executorService = executorService;
}
/**
* Constructs a new asynchronous client to invoke service methods on Amazon DynamoDB Streams using the specified AWS
* account credentials provider. Default client settings will be used.
*
* Asynchronous methods are delegated to a fixed-size thread pool containing 50 threads (to match the default
* maximum number of concurrent connections to the service).
*
* @param awsCredentialsProvider
* The AWS credentials provider which will provide credentials to authenticate requests with AWS services.
* @see java.util.concurrent.Executors#newFixedThreadPool(int)
*/
public AmazonDynamoDBStreamsAsyncClient(com.amazonaws.auth.AWSCredentialsProvider awsCredentialsProvider) {
this(awsCredentialsProvider, java.util.concurrent.Executors.newFixedThreadPool(DEFAULT_THREAD_POOL_SIZE));
}
/**
* Constructs a new asynchronous client to invoke service methods on Amazon DynamoDB Streams using the provided AWS
* account credentials provider and client configuration options.
*
* Asynchronous methods are delegated to a fixed-size thread pool containing a number of threads equal to the
* maximum number of concurrent connections configured via {@code ClientConfiguration.getMaxConnections()}.
*
* @param awsCredentialsProvider
* The AWS credentials provider which will provide credentials to authenticate requests with AWS services.
* @param clientConfiguration
* Client configuration options (ex: max retry limit, proxy settings, etc).
*
* @see com.amazonaws.auth.DefaultAWSCredentialsProviderChain
* @see java.util.concurrent.Executors#newFixedThreadPool(int)
*/
public AmazonDynamoDBStreamsAsyncClient(com.amazonaws.auth.AWSCredentialsProvider awsCredentialsProvider,
com.amazonaws.ClientConfiguration clientConfiguration) {
this(awsCredentialsProvider, clientConfiguration, java.util.concurrent.Executors.newFixedThreadPool(clientConfiguration.getMaxConnections()));
}
/**
* Constructs a new asynchronous client to invoke service methods on Amazon DynamoDB Streams using the specified AWS
* account credentials provider and executor service. Default client settings will be used.
*
* @param awsCredentialsProvider
* The AWS credentials provider which will provide credentials to authenticate requests with AWS services.
* @param executorService
* The executor service by which all asynchronous requests will be executed.
*/
public AmazonDynamoDBStreamsAsyncClient(com.amazonaws.auth.AWSCredentialsProvider awsCredentialsProvider,
java.util.concurrent.ExecutorService executorService) {
this(awsCredentialsProvider, configFactory.getConfig(), executorService);
}
/**
* Constructs a new asynchronous client to invoke service methods on Amazon DynamoDB Streams using the specified AWS
* account credentials provider, executor service, and client configuration options.
*
* @param awsCredentialsProvider
* The AWS credentials provider which will provide credentials to authenticate requests with AWS services.
* @param clientConfiguration
* Client configuration options (ex: max retry limit, proxy settings, etc).
* @param executorService
* The executor service by which all asynchronous requests will be executed.
*/
public AmazonDynamoDBStreamsAsyncClient(com.amazonaws.auth.AWSCredentialsProvider awsCredentialsProvider,
com.amazonaws.ClientConfiguration clientConfiguration, java.util.concurrent.ExecutorService executorService) {
super(awsCredentialsProvider, clientConfiguration);
this.executorService = executorService;
}
/**
* Constructs a new asynchronous client to invoke service methods on Amazon DynamoDB Streams using the specified
* parameters.
*
* @param asyncClientParams
* Object providing client parameters.
*/
AmazonDynamoDBStreamsAsyncClient(AwsAsyncClientParams asyncClientParams) {
super(asyncClientParams);
this.executorService = asyncClientParams.getExecutor();
}
/**
* Returns the executor service used by this client to execute async requests.
*
* @return The executor service used by this client to execute async requests.
*/
public java.util.concurrent.ExecutorService getExecutorService() {
return executorService;
}
@Override
public java.util.concurrent.Future describeStreamAsync(DescribeStreamRequest request) {
return describeStreamAsync(request, null);
}
@Override
public java.util.concurrent.Future describeStreamAsync(final DescribeStreamRequest request,
final com.amazonaws.handlers.AsyncHandler asyncHandler) {
return executorService.submit(new java.util.concurrent.Callable() {
@Override
public DescribeStreamResult call() throws Exception {
DescribeStreamResult result;
try {
result = describeStream(request);
} catch (Exception ex) {
if (asyncHandler != null) {
asyncHandler.onError(ex);
}
throw ex;
}
if (asyncHandler != null) {
asyncHandler.onSuccess(request, result);
}
return result;
}
});
}
@Override
public java.util.concurrent.Future getRecordsAsync(GetRecordsRequest request) {
return getRecordsAsync(request, null);
}
@Override
public java.util.concurrent.Future getRecordsAsync(final GetRecordsRequest request,
final com.amazonaws.handlers.AsyncHandler asyncHandler) {
return executorService.submit(new java.util.concurrent.Callable() {
@Override
public GetRecordsResult call() throws Exception {
GetRecordsResult result;
try {
result = getRecords(request);
} catch (Exception ex) {
if (asyncHandler != null) {
asyncHandler.onError(ex);
}
throw ex;
}
if (asyncHandler != null) {
asyncHandler.onSuccess(request, result);
}
return result;
}
});
}
@Override
public java.util.concurrent.Future getShardIteratorAsync(GetShardIteratorRequest request) {
return getShardIteratorAsync(request, null);
}
@Override
public java.util.concurrent.Future getShardIteratorAsync(final GetShardIteratorRequest request,
final com.amazonaws.handlers.AsyncHandler asyncHandler) {
return executorService.submit(new java.util.concurrent.Callable() {
@Override
public GetShardIteratorResult call() throws Exception {
GetShardIteratorResult result;
try {
result = getShardIterator(request);
} catch (Exception ex) {
if (asyncHandler != null) {
asyncHandler.onError(ex);
}
throw ex;
}
if (asyncHandler != null) {
asyncHandler.onSuccess(request, result);
}
return result;
}
});
}
@Override
public java.util.concurrent.Future listStreamsAsync(ListStreamsRequest request) {
return listStreamsAsync(request, null);
}
@Override
public java.util.concurrent.Future listStreamsAsync(final ListStreamsRequest request,
final com.amazonaws.handlers.AsyncHandler asyncHandler) {
return executorService.submit(new java.util.concurrent.Callable() {
@Override
public ListStreamsResult call() throws Exception {
ListStreamsResult result;
try {
result = listStreams(request);
} catch (Exception ex) {
if (asyncHandler != null) {
asyncHandler.onError(ex);
}
throw ex;
}
if (asyncHandler != null) {
asyncHandler.onSuccess(request, result);
}
return result;
}
});
}
/**
* Shuts down the client, releasing all managed resources. This includes forcibly terminating all pending
* asynchronous service calls. Clients who wish to give pending asynchronous service calls time to complete should
* call {@code getExecutorService().shutdown()} followed by {@code getExecutorService().awaitTermination()} prior to
* calling this method.
*/
@Override
public void shutdown() {
super.shutdown();
executorService.shutdownNow();
}
}