/*
* Copyright 2008 to 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.impl.system.measurable.memory;
import net.jini.config.Configuration;
import net.jini.config.ConfigurationException;
import org.rioproject.impl.system.measurable.MeasurableMonitor;
import org.rioproject.system.MeasuredResource;
import org.rioproject.system.SystemWatchID;
import org.rioproject.system.measurable.memory.CalculableMemory;
import org.rioproject.system.measurable.memory.CalculableSystemMemory;
import org.rioproject.system.measurable.memory.SystemMemoryUtilization;
/**
* The SystemMemory object measures the memory utilization for a physical
* machine
*
* @author Dennis Reedy
*/
public class SystemMemory extends Memory {
private static final String VIEW = "org.rioproject.system.memory.CalculableSystemMemoryView";
/**
* Component for Configuration and Logging
*/
private static final String COMPONENT = "org.rioproject.system.measurable.systemMemory";
/**
* Construct a Memory object
*
* @param config Configuration object
*/
public SystemMemory(Configuration config) {
super(SystemWatchID.SYSTEM_MEMORY, COMPONENT, config);
setView(VIEW);
}
protected String getComponentName() {
return COMPONENT;
}
@Override
public void checkValue() {
MeasuredResource mRes = monitor.getMeasuredResource();
double utilization = calculateUtilization(mRes);
long now = System.currentTimeMillis();
if(mRes instanceof SystemMemoryUtilization)
addWatchRecord(new CalculableSystemMemory(getId(),
utilization,
now,
(SystemMemoryUtilization)mRes));
else
addWatchRecord(new CalculableMemory(getId(), utilization, now));
setLastMeasuredResource(mRes);
}
@Override
protected MeasurableMonitor createMeasurableMonitor(Configuration config)
throws ConfigurationException {
return (MeasurableMonitor) config.getEntry(getComponentName(),
"monitor",
MeasurableMonitor.class,
new SystemMemoryMonitor());
}
}