com.amazonaws.metrics.ByteThroughputHelper Maven / Gradle / Ivy
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/*
* Copyright 2010-2018 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;
import java.util.concurrent.TimeUnit;
/**
* Helper class to capture the byte throughput.
*
* Note this class is only relevant when metric is enabled. Otherwise it should
* not even be involved in the call stack to minimize runtime overhead.
*/
class ByteThroughputHelper extends ByteThroughputProvider {
private static final int REPORT_INTERVAL_SECS = 10;
ByteThroughputHelper(ThroughputMetricType type) {
super(type);
}
long startTiming() {
if (TimeUnit.NANOSECONDS.toSeconds(getDurationNano()) > REPORT_INTERVAL_SECS) {
reportMetrics();
}
return System.nanoTime();
}
void reportMetrics() {
if (getByteCount() > 0) {
ServiceMetricCollector col = AwsSdkMetrics.getServiceMetricCollector();
col.collectByteThroughput(this);
reset();
}
}
@Override
public void increment(int bytesDelta, long startTimeNano) {
super.increment(bytesDelta, startTimeNano);
}
}