/*
* Copyright 2010-2013 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.metrics.internal.cloudwatch;
import com.amazonaws.SDKGlobalConfiguration;
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.metrics.AwsSdkMetrics;
import com.amazonaws.metrics.MetricCollector;
import com.amazonaws.regions.Regions;
/**
* The default AWS SDK metric collector factory. This class is instantiated
* via reflection if the default AWS SDK metrics is enabled via the
* system property {@link SDKGlobalConfiguration#DEFAULT_METRICS_SYSTEM_PROPERTY}.
*/
public class DefaultMetricCollectorFactory
implements MetricCollector.Factory {
/**
* Returns a instance of the Amazon CloudWatch request metric collector either by
* starting up a new one or returning an existing one if it's already
* started; null if any failure.
*/
@Override
public MetricCollector getInstance() {
AWSCredentialsProvider provider = AwsSdkMetrics.getCredentialProvider();
Regions region = AwsSdkMetrics.getRegion();
Integer qSize = AwsSdkMetrics.getMetricQueueSize();
Long timeoutMilli = AwsSdkMetrics.getQueuePollTimeoutMilli();
CloudWatchMetricConfig config = new CloudWatchMetricConfig();
if (provider != null)
config.setCredentialsProvider(provider);
if (region != null) {
String endPoint = "monitoring." + region.getName() + ".amazonaws.com";
config.setCloudWatchEndPoint(endPoint);
}
if (qSize != null)
config.setMetricQueueSize(qSize.intValue());
if (timeoutMilli != null)
config.setQueuePollTimeoutMilli(timeoutMilli.longValue());
MetricCollectorSupport.startSingleton(config);
return MetricCollectorSupport.getInstance();
}
}