Package com.amazonaws.services.sqs

Source Code of com.amazonaws.services.sqs.AmazonSQSAsyncClient

/*
* Copyright 2010-2012 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.sqs;

import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.handlers.AsyncHandler;
import com.amazonaws.ClientConfiguration;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.DefaultAWSCredentialsProviderChain;

import com.amazonaws.services.sqs.model.*;


/**
* Asynchronous client for accessing AmazonSQS.
* All asynchronous calls made using this client are non-blocking. Callers could either
* process the result and handle the exceptions in the worker thread by providing a callback handler
* when making the call, or use the returned Future object to check the result of the call in the calling thread.
* Amazon Simple Queue Service <p>
* Amazon Simple Queue Service (Amazon SQS) offers a reliable, highly scalable, hosted queue for storing messages as they travel between computers. By
* using Amazon SQS, developers can simply move data between distributed components of their applications that perform different tasks, without losing
* messages or requiring each component to be always available. Amazon SQS makes it easy to build an automated workflow, working in close conjunction
* with the Amazon Elastic Compute Cloud (Amazon EC2) and the other AWS infrastructure web services.
* </p>
* <p>
* Amazon SQS works by exposing Amazon's web-scale messaging infrastructure as a web service. Any computer on the Internet can add or read messages
* without any installed software or special firewall configurations. Components of applications using Amazon SQS can run independently, and do not need
* to be on the same network, developed with the same technologies, or running at the same time.
* </p>
* <p>
* Visit <a href="http://aws.amazon.com/sqs/"> http://aws.amazon.com/sqs/ </a> for more information.
* </p>
*/
public class AmazonSQSAsyncClient extends AmazonSQSClient
        implements AmazonSQSAsync {

    /**
     * Executor service for executing asynchronous requests.
     */
    private ExecutorService executorService;


    /**
     * Constructs a new asynchronous client to invoke service methods on
     * AmazonSQS.  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 DefaultAWSCredentialsProvider
     */
    public AmazonSQSAsyncClient() {
        this(new DefaultAWSCredentialsProviderChain());
    }

    /**
     * Constructs a new asynchronous client to invoke service methods on
     * AmazonSQS.  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 AmazonSQS
     *                       (ex: proxy settings, retry counts, etc.).
     *
     * @see DefaultAWSCredentialsProvider
     */
    public AmazonSQSAsyncClient(ClientConfiguration clientConfiguration) {
        this(new DefaultAWSCredentialsProviderChain(), clientConfiguration, Executors.newCachedThreadPool());
    }

    /**
     * Constructs a new asynchronous client to invoke service methods on
     * AmazonSQS using the specified AWS account credentials.
     * Default client settings will be used, and a default cached thread pool will be
     * created for executing the asynchronous tasks.
     *
     * <p>
     * All calls made using this new client object are non-blocking, and will immediately
     * return a Java Future object that the caller can later check to see if the service
     * call has actually completed.
     *
     * @param awsCredentials The AWS credentials (access key ID and secret key) to use
     *                       when authenticating with AWS services.
     */
    public AmazonSQSAsyncClient(AWSCredentials awsCredentials) {
        this(awsCredentials, Executors.newCachedThreadPool());
    }

    /**
     * Constructs a new asynchronous client to invoke service methods on
     * AmazonSQS using the specified AWS account credentials
     * and executor service.  Default client settings will be used.
     *
     * <p>
     * All calls made using this new client object are non-blocking, and will immediately
     * return a Java Future object that the caller can later check to see if the service
     * call has actually completed.
     *
     * @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 AmazonSQSAsyncClient(AWSCredentials awsCredentials, ExecutorService executorService) {
        super(awsCredentials);
        this.executorService = executorService;
    }

    /**
     * Constructs a new asynchronous client to invoke service methods on
     * AmazonSQS using the specified AWS account credentials,
     * executor service, and client configuration options.
     *
     * <p>
     * All calls made using this new client object are non-blocking, and will immediately
     * return a Java Future object that the caller can later check to see if the service
     * call has actually completed.
     *
     * @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 AmazonSQSAsyncClient(AWSCredentials awsCredentials,
                ClientConfiguration clientConfiguration, ExecutorService executorService) {
        super(awsCredentials, clientConfiguration);
        this.executorService = executorService;
    }

    /**
     * Constructs a new asynchronous client to invoke service methods on
     * AmazonSQS using the specified AWS account credentials provider.
     * Default client settings will be used, and a default cached thread pool will be
     * created for executing the asynchronous tasks.
     *
     * <p>
     * All calls made using this new client object are non-blocking, and will immediately
     * return a Java Future object that the caller can later check to see if the service
     * call has actually completed.
     *
     * @param awsCredentialsProvider
     *            The AWS credentials provider which will provide credentials
     *            to authenticate requests with AWS services.
     */
    public AmazonSQSAsyncClient(AWSCredentialsProvider awsCredentialsProvider) {
        this(awsCredentialsProvider, Executors.newCachedThreadPool());
    }

    /**
     * Constructs a new asynchronous client to invoke service methods on
     * AmazonSQS using the specified AWS account credentials provider
     * and executor service.  Default client settings will be used.
     *
     * <p>
     * All calls made using this new client object are non-blocking, and will immediately
     * return a Java Future object that the caller can later check to see if the service
     * call has actually completed.
     *
     * @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 AmazonSQSAsyncClient(AWSCredentialsProvider awsCredentialsProvider, ExecutorService executorService) {
        this(awsCredentialsProvider, new ClientConfiguration(), executorService);
    }

    /**
     * Constructs a new asynchronous client to invoke service methods on
     * AmazonSQS using the specified AWS account credentials
     * provider, executor service, and client configuration options.
     *
     * <p>
     * All calls made using this new client object are non-blocking, and will immediately
     * return a Java Future object that the caller can later check to see if the service
     * call has actually completed.
     *
     * @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 AmazonSQSAsyncClient(AWSCredentialsProvider awsCredentialsProvider,
                ClientConfiguration clientConfiguration, ExecutorService executorService) {
        super(awsCredentialsProvider, clientConfiguration);
        this.executorService = executorService;
    }


    /**
     * Returns the executor service used by this async client to execute
     * requests.
     *
     * @return The executor service used by this async client to execute
     *         requests.
     */
    public ExecutorService getExecutorService() {
        return executorService;
    }

    /**
     * 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 getExecutorService().shutdown() prior to calling this method.
     */
    @Override
    public void shutdown() {
        super.shutdown();
        executorService.shutdownNow();
    }
           
    /**
     * <p>
     * Sets an attribute of a queue. The set of attributes that can be set
     * are - DelaySeconds, MessageRetentionPeriod, MaximumMessageSize,
     * VisibilityTimeout and Policy.
     * </p>
     *
     * @param setQueueAttributesRequest Container for the necessary
     *           parameters to execute the SetQueueAttributes operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         SetQueueAttributes service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> setQueueAttributesAsync(final SetQueueAttributesRequest setQueueAttributesRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
                setQueueAttributes(setQueueAttributesRequest);
                return null;
        }
    });
    }

   
    /**
     * <p>
     * Sets an attribute of a queue. The set of attributes that can be set
     * are - DelaySeconds, MessageRetentionPeriod, MaximumMessageSize,
     * VisibilityTimeout and Policy.
     * </p>
     *
     * @param setQueueAttributesRequest Container for the necessary
     *           parameters to execute the SetQueueAttributes operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         SetQueueAttributes service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> setQueueAttributesAsync(
            final SetQueueAttributesRequest setQueueAttributesRequest,
            final AsyncHandler<SetQueueAttributesRequest, Void> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
              try {
                setQueueAttributes(setQueueAttributesRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(setQueueAttributesRequest, null);
                 return null;
        }
    });
    }
   
    /**
     * <p>
     * This is a batch version of ChangeMessageVisibility. It takes multiple
     * receipt handles and performs the operation on each of the them. The
     * result of the operation on each message is reported individually in
     * the response.
     * </p>
     *
     * @param changeMessageVisibilityBatchRequest Container for the necessary
     *           parameters to execute the ChangeMessageVisibilityBatch operation on
     *           AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         ChangeMessageVisibilityBatch service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<ChangeMessageVisibilityBatchResult> changeMessageVisibilityBatchAsync(final ChangeMessageVisibilityBatchRequest changeMessageVisibilityBatchRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<ChangeMessageVisibilityBatchResult>() {
            public ChangeMessageVisibilityBatchResult call() throws Exception {
                return changeMessageVisibilityBatch(changeMessageVisibilityBatchRequest);
        }
    });
    }

   
    /**
     * <p>
     * This is a batch version of ChangeMessageVisibility. It takes multiple
     * receipt handles and performs the operation on each of the them. The
     * result of the operation on each message is reported individually in
     * the response.
     * </p>
     *
     * @param changeMessageVisibilityBatchRequest Container for the necessary
     *           parameters to execute the ChangeMessageVisibilityBatch operation on
     *           AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         ChangeMessageVisibilityBatch service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<ChangeMessageVisibilityBatchResult> changeMessageVisibilityBatchAsync(
            final ChangeMessageVisibilityBatchRequest changeMessageVisibilityBatchRequest,
            final AsyncHandler<ChangeMessageVisibilityBatchRequest, ChangeMessageVisibilityBatchResult> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<ChangeMessageVisibilityBatchResult>() {
            public ChangeMessageVisibilityBatchResult call() throws Exception {
              ChangeMessageVisibilityBatchResult result;
                try {
                result = changeMessageVisibilityBatch(changeMessageVisibilityBatchRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(changeMessageVisibilityBatchRequest, result);
                 return result;
        }
    });
    }
   
    /**
     * <p>
     * The <code>ChangeMessageVisibility</code> action changes the visibility
     * timeout of a specified message in a queue to a new value. The maximum
     * allowed timeout value you can set the value to is 12 hours. This means
     * you can't extend the timeout of a message in an existing queue to more
     * than a total visibility timeout of 12 hours. (For more information
     * visibility timeout, see <a
     * ices.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/AboutVT.html">
     * Visibility Timeout </a> in the Amazon SQS Developer Guide.)
     * </p>
     * <p>
     * For example, let's say you have a message and its default message
     * visibility timeout is 30 minutes. You could call
     * <code>ChangeMessageVisiblity</code> with a value of two hours and the
     * effective timeout would be two hours and 30 minutes. When that time
     * comes near you could again extend the time out by calling
     * ChangeMessageVisiblity, but this time the maximum allowed timeout
     * would be 9 hours and 30 minutes.
     * </p>
     * <p>
     * <b>IMPORTANT:</b>If you attempt to set the VisibilityTimeout to an
     * amount more than the maximum time left, Amazon SQS returns an error.
     * It will not automatically recalculate and increase the timeout to the
     * maximum time remaining.
     * </p>
     * <p>
     * <b>IMPORTANT:</b>Unlike with a queue, when you change the visibility
     * timeout for a specific message, that timeout value is applied
     * immediately but is not saved in memory for that message. If you don't
     * delete a message after it is received, the visibility timeout for the
     * message the next time it is received reverts to the original timeout
     * value, not the value you set with the ChangeMessageVisibility action.
     * </p>
     *
     * @param changeMessageVisibilityRequest Container for the necessary
     *           parameters to execute the ChangeMessageVisibility operation on
     *           AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         ChangeMessageVisibility service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> changeMessageVisibilityAsync(final ChangeMessageVisibilityRequest changeMessageVisibilityRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
                changeMessageVisibility(changeMessageVisibilityRequest);
                return null;
        }
    });
    }

   
    /**
     * <p>
     * The <code>ChangeMessageVisibility</code> action changes the visibility
     * timeout of a specified message in a queue to a new value. The maximum
     * allowed timeout value you can set the value to is 12 hours. This means
     * you can't extend the timeout of a message in an existing queue to more
     * than a total visibility timeout of 12 hours. (For more information
     * visibility timeout, see <a
     * ices.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/AboutVT.html">
     * Visibility Timeout </a> in the Amazon SQS Developer Guide.)
     * </p>
     * <p>
     * For example, let's say you have a message and its default message
     * visibility timeout is 30 minutes. You could call
     * <code>ChangeMessageVisiblity</code> with a value of two hours and the
     * effective timeout would be two hours and 30 minutes. When that time
     * comes near you could again extend the time out by calling
     * ChangeMessageVisiblity, but this time the maximum allowed timeout
     * would be 9 hours and 30 minutes.
     * </p>
     * <p>
     * <b>IMPORTANT:</b>If you attempt to set the VisibilityTimeout to an
     * amount more than the maximum time left, Amazon SQS returns an error.
     * It will not automatically recalculate and increase the timeout to the
     * maximum time remaining.
     * </p>
     * <p>
     * <b>IMPORTANT:</b>Unlike with a queue, when you change the visibility
     * timeout for a specific message, that timeout value is applied
     * immediately but is not saved in memory for that message. If you don't
     * delete a message after it is received, the visibility timeout for the
     * message the next time it is received reverts to the original timeout
     * value, not the value you set with the ChangeMessageVisibility action.
     * </p>
     *
     * @param changeMessageVisibilityRequest Container for the necessary
     *           parameters to execute the ChangeMessageVisibility operation on
     *           AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         ChangeMessageVisibility service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> changeMessageVisibilityAsync(
            final ChangeMessageVisibilityRequest changeMessageVisibilityRequest,
            final AsyncHandler<ChangeMessageVisibilityRequest, Void> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
              try {
                changeMessageVisibility(changeMessageVisibilityRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(changeMessageVisibilityRequest, null);
                 return null;
        }
    });
    }
   
    /**
     * <p>
     * The <code>GetQueueUrl</code> action returns the URL of an existing
     * queue.
     * </p>
     *
     * @param getQueueUrlRequest Container for the necessary parameters to
     *           execute the GetQueueUrl operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         GetQueueUrl service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<GetQueueUrlResult> getQueueUrlAsync(final GetQueueUrlRequest getQueueUrlRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<GetQueueUrlResult>() {
            public GetQueueUrlResult call() throws Exception {
                return getQueueUrl(getQueueUrlRequest);
        }
    });
    }

   
    /**
     * <p>
     * The <code>GetQueueUrl</code> action returns the URL of an existing
     * queue.
     * </p>
     *
     * @param getQueueUrlRequest Container for the necessary parameters to
     *           execute the GetQueueUrl operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         GetQueueUrl service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<GetQueueUrlResult> getQueueUrlAsync(
            final GetQueueUrlRequest getQueueUrlRequest,
            final AsyncHandler<GetQueueUrlRequest, GetQueueUrlResult> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<GetQueueUrlResult>() {
            public GetQueueUrlResult call() throws Exception {
              GetQueueUrlResult result;
                try {
                result = getQueueUrl(getQueueUrlRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(getQueueUrlRequest, result);
                 return result;
        }
    });
    }
   
    /**
     * <p>
     * The <code>RemovePermission</code> action revokes any permissions in
     * the queue policy that matches the specified <code>Label</code>
     * parameter. Only the owner of the queue can remove permissions.
     * </p>
     *
     * @param removePermissionRequest Container for the necessary parameters
     *           to execute the RemovePermission operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         RemovePermission service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> removePermissionAsync(final RemovePermissionRequest removePermissionRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
                removePermission(removePermissionRequest);
                return null;
        }
    });
    }

   
    /**
     * <p>
     * The <code>RemovePermission</code> action revokes any permissions in
     * the queue policy that matches the specified <code>Label</code>
     * parameter. Only the owner of the queue can remove permissions.
     * </p>
     *
     * @param removePermissionRequest Container for the necessary parameters
     *           to execute the RemovePermission operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         RemovePermission service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> removePermissionAsync(
            final RemovePermissionRequest removePermissionRequest,
            final AsyncHandler<RemovePermissionRequest, Void> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
              try {
                removePermission(removePermissionRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(removePermissionRequest, null);
                 return null;
        }
    });
    }
   
    /**
     * <p>
     * Gets attributes for the specified queue. The following attributes are
     * supported:
     * <ul>
     * <li> <code>All</code> - returns all values.</li>
     * <li> <code>ApproximateNumberOfMessages</code> - returns the
     * approximate number of visible messages in a queue. For more
     * information, see Resources Required to Process Messages in the Amazon
     * SQS Developer Guide.</li>
     * <li> <code>ApproximateNumberOfMessagesNotVisible</code> - returns the
     * approximate number of messages that are not timed-out and not deleted.
     * For more information, see Resources Required to Process Messages in
     * the Amazon SQS Developer Guide.</li>
     * <li> <code>VisibilityTimeout</code> - returns the visibility timeout
     * for the queue. For more information about visibility timeout, see
     * Visibility Timeout in the Amazon SQS Developer Guide.</li>
     * <li> <code>CreatedTimestamp</code> - returns the time when the queue
     * was created (epoch time in seconds).</li>
     * <li> <code>LastModifiedTimestamp</code> - returns the time when the
     * queue was last changed (epoch time in seconds).</li>
     * <li> <code>Policy</code> - returns the queue's policy.</li>
     * <li> <code>MaximumMessageSize</code> - returns the limit of how many
     * bytes a message can contain before Amazon SQS rejects it.</li>
     * <li> <code>MessageRetentionPeriod</code> - returns the number of
     * seconds Amazon SQS retains a message.</li>
     * <li> <code>QueueArn</code> - returns the queue's Amazon resource name
     * (ARN).</li>
     * <li> <code>ApproximateNumberOfMessagesDelayed</code> - returns the
     * approximate number of messages that are pending to be added to the
     * queue.</li>
     * <li> <code>DelaySeconds</code> - returns the default delay on the
     * queue in seconds.</li>
     *
     * </ul>
     *
     * </p>
     *
     * @param getQueueAttributesRequest Container for the necessary
     *           parameters to execute the GetQueueAttributes operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         GetQueueAttributes service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<GetQueueAttributesResult> getQueueAttributesAsync(final GetQueueAttributesRequest getQueueAttributesRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<GetQueueAttributesResult>() {
            public GetQueueAttributesResult call() throws Exception {
                return getQueueAttributes(getQueueAttributesRequest);
        }
    });
    }

   
    /**
     * <p>
     * Gets attributes for the specified queue. The following attributes are
     * supported:
     * <ul>
     * <li> <code>All</code> - returns all values.</li>
     * <li> <code>ApproximateNumberOfMessages</code> - returns the
     * approximate number of visible messages in a queue. For more
     * information, see Resources Required to Process Messages in the Amazon
     * SQS Developer Guide.</li>
     * <li> <code>ApproximateNumberOfMessagesNotVisible</code> - returns the
     * approximate number of messages that are not timed-out and not deleted.
     * For more information, see Resources Required to Process Messages in
     * the Amazon SQS Developer Guide.</li>
     * <li> <code>VisibilityTimeout</code> - returns the visibility timeout
     * for the queue. For more information about visibility timeout, see
     * Visibility Timeout in the Amazon SQS Developer Guide.</li>
     * <li> <code>CreatedTimestamp</code> - returns the time when the queue
     * was created (epoch time in seconds).</li>
     * <li> <code>LastModifiedTimestamp</code> - returns the time when the
     * queue was last changed (epoch time in seconds).</li>
     * <li> <code>Policy</code> - returns the queue's policy.</li>
     * <li> <code>MaximumMessageSize</code> - returns the limit of how many
     * bytes a message can contain before Amazon SQS rejects it.</li>
     * <li> <code>MessageRetentionPeriod</code> - returns the number of
     * seconds Amazon SQS retains a message.</li>
     * <li> <code>QueueArn</code> - returns the queue's Amazon resource name
     * (ARN).</li>
     * <li> <code>ApproximateNumberOfMessagesDelayed</code> - returns the
     * approximate number of messages that are pending to be added to the
     * queue.</li>
     * <li> <code>DelaySeconds</code> - returns the default delay on the
     * queue in seconds.</li>
     *
     * </ul>
     *
     * </p>
     *
     * @param getQueueAttributesRequest Container for the necessary
     *           parameters to execute the GetQueueAttributes operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         GetQueueAttributes service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<GetQueueAttributesResult> getQueueAttributesAsync(
            final GetQueueAttributesRequest getQueueAttributesRequest,
            final AsyncHandler<GetQueueAttributesRequest, GetQueueAttributesResult> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<GetQueueAttributesResult>() {
            public GetQueueAttributesResult call() throws Exception {
              GetQueueAttributesResult result;
                try {
                result = getQueueAttributes(getQueueAttributesRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(getQueueAttributesRequest, result);
                 return result;
        }
    });
    }
   
    /**
     * <p>
     * This is a batch version of SendMessage. It takes multiple messages and
     * adds each of them to the queue. The result of each add operation is
     * reported individually in the response.
     * </p>
     *
     * @param sendMessageBatchRequest Container for the necessary parameters
     *           to execute the SendMessageBatch operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         SendMessageBatch service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<SendMessageBatchResult> sendMessageBatchAsync(final SendMessageBatchRequest sendMessageBatchRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<SendMessageBatchResult>() {
            public SendMessageBatchResult call() throws Exception {
                return sendMessageBatch(sendMessageBatchRequest);
        }
    });
    }

   
    /**
     * <p>
     * This is a batch version of SendMessage. It takes multiple messages and
     * adds each of them to the queue. The result of each add operation is
     * reported individually in the response.
     * </p>
     *
     * @param sendMessageBatchRequest Container for the necessary parameters
     *           to execute the SendMessageBatch operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         SendMessageBatch service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<SendMessageBatchResult> sendMessageBatchAsync(
            final SendMessageBatchRequest sendMessageBatchRequest,
            final AsyncHandler<SendMessageBatchRequest, SendMessageBatchResult> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<SendMessageBatchResult>() {
            public SendMessageBatchResult call() throws Exception {
              SendMessageBatchResult result;
                try {
                result = sendMessageBatch(sendMessageBatchRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(sendMessageBatchRequest, result);
                 return result;
        }
    });
    }
   
    /**
     * <p>
     * This action unconditionally deletes the queue specified by the queue
     * URL. Use this operation WITH CARE! The queue is deleted even if it is
     * NOT empty.
     * </p>
     * <p>
     * Once a queue has been deleted, the queue name is unavailable for use
     * with new queues for 60 seconds.
     * </p>
     *
     * @param deleteQueueRequest Container for the necessary parameters to
     *           execute the DeleteQueue operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         DeleteQueue service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> deleteQueueAsync(final DeleteQueueRequest deleteQueueRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
                deleteQueue(deleteQueueRequest);
                return null;
        }
    });
    }

   
    /**
     * <p>
     * This action unconditionally deletes the queue specified by the queue
     * URL. Use this operation WITH CARE! The queue is deleted even if it is
     * NOT empty.
     * </p>
     * <p>
     * Once a queue has been deleted, the queue name is unavailable for use
     * with new queues for 60 seconds.
     * </p>
     *
     * @param deleteQueueRequest Container for the necessary parameters to
     *           execute the DeleteQueue operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         DeleteQueue service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> deleteQueueAsync(
            final DeleteQueueRequest deleteQueueRequest,
            final AsyncHandler<DeleteQueueRequest, Void> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
              try {
                deleteQueue(deleteQueueRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(deleteQueueRequest, null);
                 return null;
        }
    });
    }
   
    /**
     * <p>
     * The <code>SendMessage</code> action delivers a message to the
     * specified queue.
     * </p>
     *
     * @param sendMessageRequest Container for the necessary parameters to
     *           execute the SendMessage operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         SendMessage service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<SendMessageResult> sendMessageAsync(final SendMessageRequest sendMessageRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<SendMessageResult>() {
            public SendMessageResult call() throws Exception {
                return sendMessage(sendMessageRequest);
        }
    });
    }

   
    /**
     * <p>
     * The <code>SendMessage</code> action delivers a message to the
     * specified queue.
     * </p>
     *
     * @param sendMessageRequest Container for the necessary parameters to
     *           execute the SendMessage operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         SendMessage service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<SendMessageResult> sendMessageAsync(
            final SendMessageRequest sendMessageRequest,
            final AsyncHandler<SendMessageRequest, SendMessageResult> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<SendMessageResult>() {
            public SendMessageResult call() throws Exception {
              SendMessageResult result;
                try {
                result = sendMessage(sendMessageRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(sendMessageRequest, result);
                 return result;
        }
    });
    }
   
    /**
     * <p>
     * Retrieves one or more messages from the specified queue, including the
     * message body and message ID of each message. Messages returned by this
     * action stay in the queue until you delete them. However, once a
     * message is returned to a
     * <code>ReceiveMessage</code> request, it is not
     * returned on subsequent <code>ReceiveMessage</code> requests for the
     * duration of the <code>VisibilityTimeout</code> . If you do not specify
     * a <code>VisibilityTimeout</code> in the request, the overall
     * visibility timeout for the queue is used for the returned messages.
     * </p>
     *
     * @param receiveMessageRequest Container for the necessary parameters to
     *           execute the ReceiveMessage operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         ReceiveMessage service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<ReceiveMessageResult> receiveMessageAsync(final ReceiveMessageRequest receiveMessageRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<ReceiveMessageResult>() {
            public ReceiveMessageResult call() throws Exception {
                return receiveMessage(receiveMessageRequest);
        }
    });
    }

   
    /**
     * <p>
     * Retrieves one or more messages from the specified queue, including the
     * message body and message ID of each message. Messages returned by this
     * action stay in the queue until you delete them. However, once a
     * message is returned to a
     * <code>ReceiveMessage</code> request, it is not
     * returned on subsequent <code>ReceiveMessage</code> requests for the
     * duration of the <code>VisibilityTimeout</code> . If you do not specify
     * a <code>VisibilityTimeout</code> in the request, the overall
     * visibility timeout for the queue is used for the returned messages.
     * </p>
     *
     * @param receiveMessageRequest Container for the necessary parameters to
     *           execute the ReceiveMessage operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         ReceiveMessage service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<ReceiveMessageResult> receiveMessageAsync(
            final ReceiveMessageRequest receiveMessageRequest,
            final AsyncHandler<ReceiveMessageRequest, ReceiveMessageResult> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<ReceiveMessageResult>() {
            public ReceiveMessageResult call() throws Exception {
              ReceiveMessageResult result;
                try {
                result = receiveMessage(receiveMessageRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(receiveMessageRequest, result);
                 return result;
        }
    });
    }
   
    /**
     * <p>
     * Returns a list of your queues.
     * </p>
     *
     * @param listQueuesRequest Container for the necessary parameters to
     *           execute the ListQueues operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         ListQueues service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<ListQueuesResult> listQueuesAsync(final ListQueuesRequest listQueuesRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<ListQueuesResult>() {
            public ListQueuesResult call() throws Exception {
                return listQueues(listQueuesRequest);
        }
    });
    }

   
    /**
     * <p>
     * Returns a list of your queues.
     * </p>
     *
     * @param listQueuesRequest Container for the necessary parameters to
     *           execute the ListQueues operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         ListQueues service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<ListQueuesResult> listQueuesAsync(
            final ListQueuesRequest listQueuesRequest,
            final AsyncHandler<ListQueuesRequest, ListQueuesResult> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<ListQueuesResult>() {
            public ListQueuesResult call() throws Exception {
              ListQueuesResult result;
                try {
                result = listQueues(listQueuesRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(listQueuesRequest, result);
                 return result;
        }
    });
    }
   
    /**
     * <p>
     * This is a batch version of DeleteMessage. It takes multiple receipt
     * handles and deletes each one of the messages. The result of the delete
     * operation on each message is reported individually in the response.
     * </p>
     *
     * @param deleteMessageBatchRequest Container for the necessary
     *           parameters to execute the DeleteMessageBatch operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         DeleteMessageBatch service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<DeleteMessageBatchResult> deleteMessageBatchAsync(final DeleteMessageBatchRequest deleteMessageBatchRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<DeleteMessageBatchResult>() {
            public DeleteMessageBatchResult call() throws Exception {
                return deleteMessageBatch(deleteMessageBatchRequest);
        }
    });
    }

   
    /**
     * <p>
     * This is a batch version of DeleteMessage. It takes multiple receipt
     * handles and deletes each one of the messages. The result of the delete
     * operation on each message is reported individually in the response.
     * </p>
     *
     * @param deleteMessageBatchRequest Container for the necessary
     *           parameters to execute the DeleteMessageBatch operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         DeleteMessageBatch service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<DeleteMessageBatchResult> deleteMessageBatchAsync(
            final DeleteMessageBatchRequest deleteMessageBatchRequest,
            final AsyncHandler<DeleteMessageBatchRequest, DeleteMessageBatchResult> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<DeleteMessageBatchResult>() {
            public DeleteMessageBatchResult call() throws Exception {
              DeleteMessageBatchResult result;
                try {
                result = deleteMessageBatch(deleteMessageBatchRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(deleteMessageBatchRequest, result);
                 return result;
        }
    });
    }
   
    /**
     * <p>
     * The <code>CreateQueue</code> action creates a new queue, or returns
     * the URL of an existing one. When you request <code>CreateQueue</code>
     * , you provide a name for the queue. To successfully create a new
     * queue, you must provide a name that is unique within the scope of your
     * own queues.
     * </p>
     * <p>
     * You may pass one or more attributes in the request. If you do not
     * provide a value for any attribute, the queue will have the default
     * value for that attribute. Permitted attributes are the same that can
     * be set using SetQueueAttributes.
     * </p>
     * <p>
     * If you provide the name of an existing queue, a new queue isn't
     * created. If the values of attributes provided with the request match
     * up with those on the existing queue, the queue URL is returned.
     * Otherwise, a <code>QueueNameExists</code> error is returned.
     * </p>
     *
     * @param createQueueRequest Container for the necessary parameters to
     *           execute the CreateQueue operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         CreateQueue service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<CreateQueueResult> createQueueAsync(final CreateQueueRequest createQueueRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<CreateQueueResult>() {
            public CreateQueueResult call() throws Exception {
                return createQueue(createQueueRequest);
        }
    });
    }

   
    /**
     * <p>
     * The <code>CreateQueue</code> action creates a new queue, or returns
     * the URL of an existing one. When you request <code>CreateQueue</code>
     * , you provide a name for the queue. To successfully create a new
     * queue, you must provide a name that is unique within the scope of your
     * own queues.
     * </p>
     * <p>
     * You may pass one or more attributes in the request. If you do not
     * provide a value for any attribute, the queue will have the default
     * value for that attribute. Permitted attributes are the same that can
     * be set using SetQueueAttributes.
     * </p>
     * <p>
     * If you provide the name of an existing queue, a new queue isn't
     * created. If the values of attributes provided with the request match
     * up with those on the existing queue, the queue URL is returned.
     * Otherwise, a <code>QueueNameExists</code> error is returned.
     * </p>
     *
     * @param createQueueRequest Container for the necessary parameters to
     *           execute the CreateQueue operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         CreateQueue service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<CreateQueueResult> createQueueAsync(
            final CreateQueueRequest createQueueRequest,
            final AsyncHandler<CreateQueueRequest, CreateQueueResult> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<CreateQueueResult>() {
            public CreateQueueResult call() throws Exception {
              CreateQueueResult result;
                try {
                result = createQueue(createQueueRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(createQueueRequest, result);
                 return result;
        }
    });
    }
   
    /**
     * <p>
     * The AddPermission action adds a permission to a queue for a specific
     * <a
     * .com/AWSSimpleQueueService/latest/APIReference/Glossary.html#d0e3892">
     * principal </a> . This allows for sharing access to the queue.
     * </p>
     * <p>
     * When you create a queue, you have full control access rights for the
     * queue. Only you (as owner of the queue) can grant or deny permissions
     * to the queue. For more information about these permissions, see <a
     * om/AWSSimpleQueueService/latest/SQSDeveloperGuide/?acp-overview.html">
     * Shared Queues </a> in the Amazon SQS Developer Guide.
     * </p>
     * <p>
     * <code>AddPermission</code> writes an SQS-generated policy. If you
     * want to write your own policy, use SetQueueAttributes to upload your
     * policy. For more information about writing your own policy, see <a
     * mpleQueueService/latest/SQSDeveloperGuide/?AccessPolicyLanguage.html">
     * Appendix: The Access Policy Language </a> in the Amazon SQS Developer
     * Guide.
     * </p>
     *
     * @param addPermissionRequest Container for the necessary parameters to
     *           execute the AddPermission operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         AddPermission service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> addPermissionAsync(final AddPermissionRequest addPermissionRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
                addPermission(addPermissionRequest);
                return null;
        }
    });
    }

   
    /**
     * <p>
     * The AddPermission action adds a permission to a queue for a specific
     * <a
     * .com/AWSSimpleQueueService/latest/APIReference/Glossary.html#d0e3892">
     * principal </a> . This allows for sharing access to the queue.
     * </p>
     * <p>
     * When you create a queue, you have full control access rights for the
     * queue. Only you (as owner of the queue) can grant or deny permissions
     * to the queue. For more information about these permissions, see <a
     * om/AWSSimpleQueueService/latest/SQSDeveloperGuide/?acp-overview.html">
     * Shared Queues </a> in the Amazon SQS Developer Guide.
     * </p>
     * <p>
     * <code>AddPermission</code> writes an SQS-generated policy. If you
     * want to write your own policy, use SetQueueAttributes to upload your
     * policy. For more information about writing your own policy, see <a
     * mpleQueueService/latest/SQSDeveloperGuide/?AccessPolicyLanguage.html">
     * Appendix: The Access Policy Language </a> in the Amazon SQS Developer
     * Guide.
     * </p>
     *
     * @param addPermissionRequest Container for the necessary parameters to
     *           execute the AddPermission operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         AddPermission service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> addPermissionAsync(
            final AddPermissionRequest addPermissionRequest,
            final AsyncHandler<AddPermissionRequest, Void> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
              try {
                addPermission(addPermissionRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(addPermissionRequest, null);
                 return null;
        }
    });
    }
   
    /**
     * <p>
     * The <code>DeleteMessage</code> action unconditionally removes the
     * specified message from the specified queue. Even if the message is
     * locked by another reader due to the visibility timeout setting, it is
     * still deleted from the queue.
     * </p>
     *
     * @param deleteMessageRequest Container for the necessary parameters to
     *           execute the DeleteMessage operation on AmazonSQS.
     *
     * @return A Java Future object containing the response from the
     *         DeleteMessage service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> deleteMessageAsync(final DeleteMessageRequest deleteMessageRequest)
            throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
                deleteMessage(deleteMessageRequest);
                return null;
        }
    });
    }

   
    /**
     * <p>
     * The <code>DeleteMessage</code> action unconditionally removes the
     * specified message from the specified queue. Even if the message is
     * locked by another reader due to the visibility timeout setting, it is
     * still deleted from the queue.
     * </p>
     *
     * @param deleteMessageRequest Container for the necessary parameters to
     *           execute the DeleteMessage operation on AmazonSQS.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     *
     * @return A Java Future object containing the response from the
     *         DeleteMessage service method, as returned by AmazonSQS.
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSQS indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future<Void> deleteMessageAsync(
            final DeleteMessageRequest deleteMessageRequest,
            final AsyncHandler<DeleteMessageRequest, Void> asyncHandler)
                    throws AmazonServiceException, AmazonClientException {
        return executorService.submit(new Callable<Void>() {
            public Void call() throws Exception {
              try {
                deleteMessage(deleteMessageRequest);
              } catch (Exception ex) {
                  asyncHandler.onError(ex);
            throw ex;
              }
              asyncHandler.onSuccess(deleteMessageRequest, null);
                 return null;
        }
    });
    }
   
}
       
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Related Classes of com.amazonaws.services.sqs.AmazonSQSAsyncClient

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