/*
* Copyright 2009 the original author or authors.
*
* Licensed 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.rioproject.test.scaling;
import org.rioproject.servicebean.ServiceBeanContext;
import org.rioproject.impl.servicebean.ServiceBeanAdapter;
import org.rioproject.impl.watch.GaugeWatch;
/**
* Implements a service for which a client can change the load
* programmatically.
*/
public class SettableLoadServiceImpl extends ServiceBeanAdapter
implements SettableLoadService {
/**
* The load watch.
*/
private GaugeWatch loadWatch;
/**
* Is overridden to setup the load watch.
*/
public void initialize(ServiceBeanContext context) throws Exception {
super.initialize(context);
loadWatch = new GaugeWatch("load");
getWatchRegistry().register(loadWatch);
loadWatch.addValue(0);
}
/**
* Sets the service load.
*
* @param load the load.
*/
public void setLoad(double load) {
try {
double last = loadWatch.getLastCalculableValue();
loadWatch.addValue(load);
boolean verified = loadWatch.getLastCalculableValue() == load;
if (!verified)
System.err.println(
"---> was [" + loadWatch.getLastCalculableValue() +
"], SET FAILED [" + load + "] " +
"breached=" +
loadWatch.getThresholdManager().getThresholdCrossed());
else
System.err.println(
"---> was [" + last + "], added [" + load + "] " +
"breached=" +
loadWatch.getThresholdManager().getThresholdCrossed());
} catch (Throwable t) {
}
}
}