/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2011 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.jersey.server.spi.monitoring.glassfish;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.Map;
import org.glassfish.external.statistics.CountStatistic;
import org.glassfish.external.statistics.impl.StatisticImpl;
import org.glassfish.gmbal.ManagedAttribute;
public class ResourceStatisticImpl extends StatisticImpl
implements CountStatistic, InvocationHandler {
private long count = 0L;
private final long initCount;
private final CountStatistic cs =
(CountStatistic) Proxy.newProxyInstance(
CountStatistic.class.getClassLoader(),
new Class[]{CountStatistic.class},
this);
private String resourceClassName;
public ResourceStatisticImpl(long countVal, String name, String unit,
String desc, long sampleTime, long startTime) {
super(name, unit, desc, startTime, sampleTime);
count = countVal;
initCount = countVal;
}
public ResourceStatisticImpl(String name, String unit, String desc) {
this(0L, name, unit, desc, -1L, System.currentTimeMillis());
}
public ResourceStatisticImpl(String name, String unit, String desc, String resourceClassName) {
this(0L, name, unit, desc, -1L, System.currentTimeMillis());
this.resourceClassName = resourceClassName;
}
public synchronized CountStatistic getStatistic() {
return cs;
}
@Override
public synchronized Map getStaticAsMap() {
Map m = super.getStaticAsMap();
m.put("count", getCount());
m.put("classname", resourceClassName);
return m;
}
@Override
public synchronized String toString() {
return super.toString() + NEWLINE + "Count: " + getCount();
}
@Override
@ManagedAttribute(id = "count")
public synchronized long getCount() {
return count;
}
public synchronized void setCount(long countVal) {
count = countVal;
sampleTime = System.currentTimeMillis();
}
@ManagedAttribute(id = "classname")
public synchronized String getClassName() {
return resourceClassName;
}
public synchronized void increment() {
count++;
sampleTime = System.currentTimeMillis();
}
public synchronized void increment(long delta) {
count = count + delta;
sampleTime = System.currentTimeMillis();
}
public synchronized void decrement() {
count--;
sampleTime = System.currentTimeMillis();
}
@Override
public synchronized void reset() {
super.reset();
count = initCount;
sampleTime = -1L;
}
// todo: equals implementation
@Override
public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
Object result;
try {
result = m.invoke(this, args);
} catch (InvocationTargetException e) {
throw e.getTargetException();
} catch (Exception e) {
throw new RuntimeException("unexpected invocation exception: " + e.getMessage());
} finally {
}
return result;
}
}