com.sun.btrace.aggregation.HistogramData Maven / Gradle / Ivy
/*
* Copyright 2008-2010 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package com.sun.btrace.aggregation;
import java.io.PrintWriter;
import java.io.Serializable;
/**
* A wire data structure describing histogram data.
*
*
* @author Christian Glencross
*/
public class HistogramData implements Serializable {
private static final long serialVersionUID = 1L;
private long[] values;
private long[] counts;
public HistogramData(long[] values, long[] counts) {
if (values.length != counts.length) {
throw new IllegalArgumentException("values and counts are different lengths");
}
this.values = values;
this.counts = counts;
}
public long[] getValues() {
return values;
}
public long[] getCounts() {
return counts;
}
public void print(PrintWriter p) {
int totalCount = 0;
for (int i = 0; i < counts.length; i++) {
totalCount += counts[i];
}
p.println(" value ------------- Distribution ------------- count");
for (int i = 0; i < values.length; i++) {
p.print(String.format("%15d", Long.valueOf(values[i])));
p.print(" |");
long lineLength = (40 * counts[i]) / totalCount;
for (int j = 0; j < 40; j++) {
p.print(j < lineLength ? "@" : " ");
}
p.print(" ");
p.println(counts[i]);
}
}
}