98 lines
2.8 KiB
Java
98 lines
2.8 KiB
Java
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.java2d.marlin.stats;
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/**
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* Statistics as long values
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*/
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public class StatLong {
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public final String name;
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public long count = 0l;
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public long sum = 0l;
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public long min = Integer.MAX_VALUE;
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public long max = Integer.MIN_VALUE;
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public StatLong(final String name) {
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this.name = name;
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}
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public void reset() {
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count = 0l;
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sum = 0l;
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min = Integer.MAX_VALUE;
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max = Integer.MIN_VALUE;
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}
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public void add(final int val) {
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count++;
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sum += val;
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if (val < min) {
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min = val;
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}
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if (val > max) {
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max = val;
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}
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}
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public void add(final long val) {
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count++;
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sum += val;
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if (val < min) {
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min = val;
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}
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if (val > max) {
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max = val;
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}
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}
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@Override
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public String toString() {
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final StringBuilder sb = new StringBuilder(128);
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toString(sb);
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return sb.toString();
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}
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public final StringBuilder toString(final StringBuilder sb) {
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sb.append(name).append('[').append(count);
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sb.append("] sum: ").append(sum).append(" avg: ");
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sb.append(trimTo3Digits(((double) sum) / count));
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sb.append(" [").append(min).append(" | ").append(max).append("]");
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return sb;
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}
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/**
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* Adjust the given double value to keep only 3 decimal digits
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*
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* @param value value to adjust
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* @return double value with only 3 decimal digits
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*/
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public static double trimTo3Digits(final double value) {
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return ((long) (1e3d * value)) / 1e3d;
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}
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}
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