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Added SizeStatisicsImpl for https://issues.apache.org/jira/browse/AMQ-4697
git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@1518217 13f79535-47bb-0310-9956-ffa450edef68
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/**
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.activemq.management;
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public class SizeStatisticImpl extends StatisticImpl{
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private long count;
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private long maxSize;
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private long minSize;
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private long totalSize;
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private SizeStatisticImpl parent;
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public SizeStatisticImpl(String name, String description) {
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this(name, "bytes", description);
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}
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public SizeStatisticImpl(SizeStatisticImpl parent, String name, String description) {
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this(name, description);
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this.parent = parent;
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}
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public SizeStatisticImpl(String name, String unit, String description) {
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super(name, unit, description);
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}
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public synchronized void reset() {
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if(isDoReset()) {
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super.reset();
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count = 0;
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maxSize = 0;
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minSize = 0;
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totalSize = 0;
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}
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}
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public synchronized long getCount() {
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return count;
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}
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public synchronized void addSize(long size) {
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count++;
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totalSize += size;
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if (size > maxSize) {
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maxSize = size;
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}
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if (size < minSize || minSize == 0) {
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minSize = size;
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}
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updateSampleTime();
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if (parent != null) {
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parent.addSize(size);
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}
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}
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/**
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* @return the maximum time of any step
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*/
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public long getMaxSize() {
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return maxSize;
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}
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/**
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* @return the minimum time of any step
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*/
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public synchronized long getMinSize() {
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return minSize;
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}
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/**
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* @return the total time of all the steps added together
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*/
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public synchronized long getTotalSize() {
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return totalSize;
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}
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/**
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* @return the average time calculated by dividing the
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* total time by the number of counts
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*/
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public synchronized double getAverageSize() {
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if (count == 0) {
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return 0;
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}
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double d = totalSize;
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return d / count;
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}
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/**
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* @return the average time calculated by dividing the
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* total time by the number of counts but excluding the
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* minimum and maximum times.
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*/
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public synchronized double getAverageSizeExcludingMinMax() {
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if (count <= 2) {
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return 0;
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}
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double d = totalSize - minSize - maxSize;
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return d / (count - 2);
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}
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/**
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* @return the average number of steps per second
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*/
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public double getAveragePerSecond() {
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double d = 1000;
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double averageSize = getAverageSize();
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if (averageSize == 0) {
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return 0;
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}
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return d / averageSize;
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}
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/**
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* @return the average number of steps per second excluding the min & max values
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*/
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public double getAveragePerSecondExcludingMinMax() {
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double d = 1000;
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double average = getAverageSizeExcludingMinMax();
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if (average == 0) {
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return 0;
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}
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return d / average;
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}
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public SizeStatisticImpl getParent() {
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return parent;
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}
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public void setParent(SizeStatisticImpl parent) {
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this.parent = parent;
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}
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protected synchronized void appendFieldDescription(StringBuffer buffer) {
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buffer.append(" count: ");
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buffer.append(Long.toString(count));
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buffer.append(" maxSize: ");
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buffer.append(Long.toString(maxSize));
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buffer.append(" minSize: ");
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buffer.append(Long.toString(minSize));
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buffer.append(" totalSize: ");
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buffer.append(Long.toString(totalSize));
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buffer.append(" averageTime: ");
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buffer.append(Double.toString(getAverageSize()));
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buffer.append(" averageTimeExMinMax: ");
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buffer.append(Double.toString(getAveragePerSecondExcludingMinMax()));
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buffer.append(" averagePerSecond: ");
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buffer.append(Double.toString(getAveragePerSecond()));
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buffer.append(" averagePerSecondExMinMax: ");
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buffer.append(Double.toString(getAveragePerSecondExcludingMinMax()));
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super.appendFieldDescription(buffer);
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}
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}
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