/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2009 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) Ericsson AB, 2004-2008. 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 https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/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 glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [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.ericsson.ssa.container.overload;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.glassfish.comms.api.overload.OverloadEvent;
import org.glassfish.comms.api.overload.OverloadEvent.TrafficType;
import org.jvnet.glassfish.comms.util.LogUtil;
import com.ericsson.ssa.container.overload.OverloadMeasurement.Algorithm;
import com.ericsson.ssa.container.overload.OverloadMeasurement.TrafficState;
import com.ericsson.util.os.OSUtil;
import com.ericsson.util.os.OSUtilFactory;
public abstract class OverloadCPUMemoryDetectorBase extends
OverloadDetectorBase {
private static final Logger LOGGER = LogUtil.SIP_LOGGER.getLogger();
protected final OSUtil _osUtil;
private OverloadMeasurement measurement = null;
private TrafficState sipSubsequent = null;
private TrafficState sipInitial = null;
private TrafficState http = null;
private TrafficState all = null;
public OverloadCPUMemoryDetectorBase(OverloadConfiguration config) {
super(config);
String allProcess = System.getProperty("AllProcess");
// If AllProcess will be set to true default, if it not set as -D
// attribute.
String allProcessFlag = "true"; // non-null means set which is default
if ("false".equals(allProcess)) {
allProcessFlag = null; // unset the flag
}
if (LOGGER.isLoggable(Level.FINEST)) {
LOGGER.log(Level.FINEST, "logging usage for all processes? "
+ ((allProcess == null) ? "false" : "true"));
}
_osUtil = getOsUtil(allProcessFlag);
}
protected OSUtil getOsUtil(String allProcessFlag) {
OSUtil osUtil = OSUtilFactory.getOSUtil(allProcessFlag);
if (osUtil == null) {
LOGGER.log(Level.WARNING, getClass().getCanonicalName()
+ ".no_os_utils");
} else {
LOGGER.log(Level.FINEST, getClass().getCanonicalName()
+ osUtil.getInfo());
}
return osUtil;
}
public void activate() {
measurement = new OverloadMeasurement();
sipInitial = measurement.new TrafficState(type(),
TrafficType.SIP_INITIAL);
sipSubsequent = measurement.new TrafficState(type(),
TrafficType.SIP_SUBSEQUENT);
http = measurement.new TrafficState(type(), TrafficType.HTTP);
all = measurement.new TrafficState(type(), TrafficType.ALL);
}
/**
* NOTE: Cease events will always be sent when a detector is removed whether
* or not raise has been sent before
*/
public void deactivate() {
ceaseOverload(sipInitial.createCeased(0));
ceaseOverload(sipSubsequent.createCeased(0));
ceaseOverload(http.createCeased(0));
ceaseOverload(all.createCeased(0));
measurement = null;
sipSubsequent = null;
sipInitial = null;
http = null;
all = null;
}
public int retryAfter(TrafficType trafficType) {
switch (trafficType) {
case SIP_INITIAL:
return sipInitial.retryAfter();
case SIP_SUBSEQUENT:
return sipSubsequent.retryAfter();
case HTTP:
return http.retryAfter();
case ALL:
return all.retryAfter();
}
throw new IllegalStateException(
"TrafficType is not supported = " + trafficType);
}
@Override
protected List<OverloadEvent> detect(int sampleRate, int numberOfSamples) {
ArrayList<OverloadEvent> events = new ArrayList<OverloadEvent>();
measurement.saveMeasurement(usage(), numberOfSamples,
getOverloadActivationAlgorithm(),
getOverloadDeactivationAlgorithm());
OverloadEvent initialSipAction = sipInitial
.compareThreshold(getIrThreshold());
if (initialSipAction != null) {
events.add(initialSipAction);
}
OverloadEvent subsequentSipAction = sipSubsequent
.compareThreshold(getSrThreshold());
if (subsequentSipAction != null) {
events.add(subsequentSipAction);
}
OverloadEvent httpAction = http.compareThreshold(getHttpThreshold());
if (httpAction != null) {
events.add(httpAction);
}
OverloadEvent allAction = all.compareThreshold(getMmThreshold());
if (allAction != null) {
events.add(allAction);
}
return events;
}
protected abstract int usage();
public abstract Algorithm getOverloadActivationAlgorithm();
public abstract Algorithm getOverloadDeactivationAlgorithm();
public abstract Integer getIrThreshold();
public abstract Integer getSrThreshold();
public abstract Integer getHttpThreshold();
public abstract Integer getMmThreshold();
}