org.apache.activemq.management.RangeStatisticImpl Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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 org.apache.activemq.management;
/**
* A range statistic implementation
*
*
*/
public class RangeStatisticImpl extends StatisticImpl {
private long highWaterMark;
private long lowWaterMark;
private long current;
public RangeStatisticImpl(String name, String unit, String description) {
super(name, unit, description);
}
public void reset() {
if (isDoReset()) {
super.reset();
current = 0;
lowWaterMark = 0;
highWaterMark = 0;
}
}
public long getHighWaterMark() {
return highWaterMark;
}
public long getLowWaterMark() {
return lowWaterMark;
}
public long getCurrent() {
return current;
}
public void setCurrent(long current) {
this.current = current;
if (current > highWaterMark) {
highWaterMark = current;
}
if (current < lowWaterMark || lowWaterMark == 0) {
lowWaterMark = current;
}
updateSampleTime();
}
protected void appendFieldDescription(StringBuffer buffer) {
buffer.append(" current: ");
buffer.append(Long.toString(current));
buffer.append(" lowWaterMark: ");
buffer.append(Long.toString(lowWaterMark));
buffer.append(" highWaterMark: ");
buffer.append(Long.toString(highWaterMark));
super.appendFieldDescription(buffer);
}
}