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/*
 * Copyright 2010-2016 Amazon.com, Inc. or its affiliates. All Rights
 * Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
package com.amazonaws.services.cloudwatch;
import com.amazonaws.services.cloudwatch.model.*;
import com.amazonaws.annotation.ThreadSafe;
/**
 * Interface for accessing CloudWatch 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 CloudWatch monitors your Amazon Web Services (AWS) resources and the
 * applications you run on AWS in real-time. You can use CloudWatch to collect
 * and track metrics, which are the variables you want to measure for your
 * resources and applications.
 * 
 * 
 * CloudWatch alarms send notifications or automatically make changes to the
 * resources you are monitoring based on rules that you define. For example, you
 * can monitor the CPU usage and disk reads and writes of your Amazon Elastic
 * Compute Cloud (Amazon EC2) instances and then use this data to determine
 * whether you should launch additional instances to handle increased load. You
 * can also use this data to stop under-used instances to save money.
 * 
 * 
 * In addition to monitoring the built-in metrics that come with AWS, you can
 * monitor your own custom metrics. With CloudWatch, you gain system-wide
 * visibility into resource utilization, application performance, and
 * operational health.
 * 
 */
@ThreadSafe
public class AmazonCloudWatchAsyncClient extends AmazonCloudWatchClient
        implements AmazonCloudWatchAsync {
    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
     * CloudWatch. 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 AmazonCloudWatchAsyncClient() {
        this(new com.amazonaws.auth.DefaultAWSCredentialsProviderChain());
    }
    /**
     * Constructs a new asynchronous client to invoke service methods on
     * CloudWatch. 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 CloudWatch (ex: proxy settings, retry counts, etc).
     *
     * @see com.amazonaws.auth.DefaultAWSCredentialsProviderChain
     * @see java.util.concurrent.Executors#newFixedThreadPool(int)
     */
    public AmazonCloudWatchAsyncClient(
            com.amazonaws.ClientConfiguration clientConfiguration) {
        this(new com.amazonaws.auth.DefaultAWSCredentialsProviderChain(),
                clientConfiguration, java.util.concurrent.Executors
                        .newFixedThreadPool(clientConfiguration
                                .getMaxConnections()));
    }
    /**
     * Constructs a new asynchronous client to invoke service methods on
     * CloudWatch 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 AmazonCloudWatchAsyncClient(
            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
     * CloudWatch 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 AmazonCloudWatchAsyncClient(
            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
     * CloudWatch 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 AmazonCloudWatchAsyncClient(
            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
     * CloudWatch 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 AmazonCloudWatchAsyncClient(
            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
     * CloudWatch 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 AmazonCloudWatchAsyncClient(
            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
     * CloudWatch 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 AmazonCloudWatchAsyncClient(
            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
     * CloudWatch 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 AmazonCloudWatchAsyncClient(
            com.amazonaws.auth.AWSCredentialsProvider awsCredentialsProvider,
            com.amazonaws.ClientConfiguration clientConfiguration,
            java.util.concurrent.ExecutorService executorService) {
        super(awsCredentialsProvider, clientConfiguration);
        this.executorService = executorService;
    }
    /**
     * 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 deleteAlarmsAsync(
            DeleteAlarmsRequest request) {
        return deleteAlarmsAsync(request, null);
    }
    @Override
    public java.util.concurrent.Future deleteAlarmsAsync(
            final DeleteAlarmsRequest request,
            final com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return executorService
                .submit(new java.util.concurrent.Callable() {
                    @Override
                    public DeleteAlarmsResult call() throws Exception {
                        DeleteAlarmsResult result;
                        try {
                            result = deleteAlarms(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 describeAlarmHistoryAsync(
            DescribeAlarmHistoryRequest request) {
        return describeAlarmHistoryAsync(request, null);
    }
    @Override
    public java.util.concurrent.Future describeAlarmHistoryAsync(
            final DescribeAlarmHistoryRequest request,
            final com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return executorService
                .submit(new java.util.concurrent.Callable() {
                    @Override
                    public DescribeAlarmHistoryResult call() throws Exception {
                        DescribeAlarmHistoryResult result;
                        try {
                            result = describeAlarmHistory(request);
                        } catch (Exception ex) {
                            if (asyncHandler != null) {
                                asyncHandler.onError(ex);
                            }
                            throw ex;
                        }
                        if (asyncHandler != null) {
                            asyncHandler.onSuccess(request, result);
                        }
                        return result;
                    }
                });
    }
    /**
     * Simplified method form for invoking the DescribeAlarmHistory operation.
     *
     * @see #describeAlarmHistoryAsync(DescribeAlarmHistoryRequest)
     */
    @Override
    public java.util.concurrent.Future describeAlarmHistoryAsync() {
        return describeAlarmHistoryAsync(new DescribeAlarmHistoryRequest());
    }
    /**
     * Simplified method form for invoking the DescribeAlarmHistory operation
     * with an AsyncHandler.
     *
     * @see #describeAlarmHistoryAsync(DescribeAlarmHistoryRequest,
     *      com.amazonaws.handlers.AsyncHandler)
     */
    public java.util.concurrent.Future describeAlarmHistoryAsync(
            com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return describeAlarmHistoryAsync(new DescribeAlarmHistoryRequest(),
                asyncHandler);
    }
    @Override
    public java.util.concurrent.Future describeAlarmsAsync(
            DescribeAlarmsRequest request) {
        return describeAlarmsAsync(request, null);
    }
    @Override
    public java.util.concurrent.Future describeAlarmsAsync(
            final DescribeAlarmsRequest request,
            final com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return executorService
                .submit(new java.util.concurrent.Callable() {
                    @Override
                    public DescribeAlarmsResult call() throws Exception {
                        DescribeAlarmsResult result;
                        try {
                            result = describeAlarms(request);
                        } catch (Exception ex) {
                            if (asyncHandler != null) {
                                asyncHandler.onError(ex);
                            }
                            throw ex;
                        }
                        if (asyncHandler != null) {
                            asyncHandler.onSuccess(request, result);
                        }
                        return result;
                    }
                });
    }
    /**
     * Simplified method form for invoking the DescribeAlarms operation.
     *
     * @see #describeAlarmsAsync(DescribeAlarmsRequest)
     */
    @Override
    public java.util.concurrent.Future describeAlarmsAsync() {
        return describeAlarmsAsync(new DescribeAlarmsRequest());
    }
    /**
     * Simplified method form for invoking the DescribeAlarms operation with an
     * AsyncHandler.
     *
     * @see #describeAlarmsAsync(DescribeAlarmsRequest,
     *      com.amazonaws.handlers.AsyncHandler)
     */
    public java.util.concurrent.Future describeAlarmsAsync(
            com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return describeAlarmsAsync(new DescribeAlarmsRequest(), asyncHandler);
    }
    @Override
    public java.util.concurrent.Future describeAlarmsForMetricAsync(
            DescribeAlarmsForMetricRequest request) {
        return describeAlarmsForMetricAsync(request, null);
    }
    @Override
    public java.util.concurrent.Future describeAlarmsForMetricAsync(
            final DescribeAlarmsForMetricRequest request,
            final com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return executorService
                .submit(new java.util.concurrent.Callable() {
                    @Override
                    public DescribeAlarmsForMetricResult call()
                            throws Exception {
                        DescribeAlarmsForMetricResult result;
                        try {
                            result = describeAlarmsForMetric(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 disableAlarmActionsAsync(
            DisableAlarmActionsRequest request) {
        return disableAlarmActionsAsync(request, null);
    }
    @Override
    public java.util.concurrent.Future disableAlarmActionsAsync(
            final DisableAlarmActionsRequest request,
            final com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return executorService
                .submit(new java.util.concurrent.Callable() {
                    @Override
                    public DisableAlarmActionsResult call() throws Exception {
                        DisableAlarmActionsResult result;
                        try {
                            result = disableAlarmActions(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 enableAlarmActionsAsync(
            EnableAlarmActionsRequest request) {
        return enableAlarmActionsAsync(request, null);
    }
    @Override
    public java.util.concurrent.Future enableAlarmActionsAsync(
            final EnableAlarmActionsRequest request,
            final com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return executorService
                .submit(new java.util.concurrent.Callable() {
                    @Override
                    public EnableAlarmActionsResult call() throws Exception {
                        EnableAlarmActionsResult result;
                        try {
                            result = enableAlarmActions(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 getMetricStatisticsAsync(
            GetMetricStatisticsRequest request) {
        return getMetricStatisticsAsync(request, null);
    }
    @Override
    public java.util.concurrent.Future getMetricStatisticsAsync(
            final GetMetricStatisticsRequest request,
            final com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return executorService
                .submit(new java.util.concurrent.Callable() {
                    @Override
                    public GetMetricStatisticsResult call() throws Exception {
                        GetMetricStatisticsResult result;
                        try {
                            result = getMetricStatistics(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 listMetricsAsync(
            ListMetricsRequest request) {
        return listMetricsAsync(request, null);
    }
    @Override
    public java.util.concurrent.Future listMetricsAsync(
            final ListMetricsRequest request,
            final com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return executorService
                .submit(new java.util.concurrent.Callable() {
                    @Override
                    public ListMetricsResult call() throws Exception {
                        ListMetricsResult result;
                        try {
                            result = listMetrics(request);
                        } catch (Exception ex) {
                            if (asyncHandler != null) {
                                asyncHandler.onError(ex);
                            }
                            throw ex;
                        }
                        if (asyncHandler != null) {
                            asyncHandler.onSuccess(request, result);
                        }
                        return result;
                    }
                });
    }
    /**
     * Simplified method form for invoking the ListMetrics operation.
     *
     * @see #listMetricsAsync(ListMetricsRequest)
     */
    @Override
    public java.util.concurrent.Future listMetricsAsync() {
        return listMetricsAsync(new ListMetricsRequest());
    }
    /**
     * Simplified method form for invoking the ListMetrics operation with an
     * AsyncHandler.
     *
     * @see #listMetricsAsync(ListMetricsRequest,
     *      com.amazonaws.handlers.AsyncHandler)
     */
    public java.util.concurrent.Future listMetricsAsync(
            com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return listMetricsAsync(new ListMetricsRequest(), asyncHandler);
    }
    @Override
    public java.util.concurrent.Future putMetricAlarmAsync(
            PutMetricAlarmRequest request) {
        return putMetricAlarmAsync(request, null);
    }
    @Override
    public java.util.concurrent.Future putMetricAlarmAsync(
            final PutMetricAlarmRequest request,
            final com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return executorService
                .submit(new java.util.concurrent.Callable() {
                    @Override
                    public PutMetricAlarmResult call() throws Exception {
                        PutMetricAlarmResult result;
                        try {
                            result = putMetricAlarm(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 putMetricDataAsync(
            PutMetricDataRequest request) {
        return putMetricDataAsync(request, null);
    }
    @Override
    public java.util.concurrent.Future putMetricDataAsync(
            final PutMetricDataRequest request,
            final com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return executorService
                .submit(new java.util.concurrent.Callable() {
                    @Override
                    public PutMetricDataResult call() throws Exception {
                        PutMetricDataResult result;
                        try {
                            result = putMetricData(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 setAlarmStateAsync(
            SetAlarmStateRequest request) {
        return setAlarmStateAsync(request, null);
    }
    @Override
    public java.util.concurrent.Future setAlarmStateAsync(
            final SetAlarmStateRequest request,
            final com.amazonaws.handlers.AsyncHandler asyncHandler) {
        return executorService
                .submit(new java.util.concurrent.Callable() {
                    @Override
                    public SetAlarmStateResult call() throws Exception {
                        SetAlarmStateResult result;
                        try {
                            result = setAlarmState(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();
    }
}