org.webrtc.Histogram Maven / Gradle / Ivy
/*
* Copyright 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
package org.webrtc;
/**
* Class for holding the native pointer of a histogram. Since there is no way to destroy a
* histogram, please don't create unnecessary instances of this object. This class is thread safe.
*
* Usage example:
* private static final Histogram someMetricHistogram =
* Histogram.createCounts("WebRTC.Video.SomeMetric", 1, 10000, 50);
* someMetricHistogram.addSample(someVariable);
*/
class Histogram {
private final long handle;
private Histogram(long handle) {
this.handle = handle;
}
static public Histogram createCounts(String name, int min, int max, int bucketCount) {
return new Histogram(nativeCreateCounts(name, min, max, bucketCount));
}
static public Histogram createEnumeration(String name, int max) {
return new Histogram(nativeCreateEnumeration(name, max));
}
public void addSample(int sample) {
nativeAddSample(handle, sample);
}
private static native long nativeCreateCounts(String name, int min, int max, int bucketCount);
private static native long nativeCreateEnumeration(String name, int max);
private static native void nativeAddSample(long handle, int sample);
}