/*
* RHQ Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.plugins.modcluster;
import java.util.concurrent.TimeUnit;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.mc4j.ems.connection.bean.EmsBean;
import org.rhq.core.domain.configuration.Configuration;
import org.rhq.core.domain.measurement.AvailabilityType;
import org.rhq.core.pluginapi.operation.OperationResult;
import org.rhq.plugins.jmx.MBeanResourceComponent;
import org.rhq.plugins.modcluster.helper.JBossHelper;
import org.rhq.plugins.modcluster.model.ProxyInfo;
/**
* Manages a mod_cluster context entity.
*
* @author Stefan Negrea
*/
@SuppressWarnings({ "deprecation" })
public class WebappContextComponent extends MBeanResourceComponent<MBeanResourceComponent<?>> {
private static final Log log = LogFactory.getLog(WebappContextComponent.class);
@Override
protected EmsBean loadBean() {
return getResourceContext().getParentResourceComponent().getEmsBean();
}
@Override
public AvailabilityType getAvailability() {
ClassLoader cl = Thread.currentThread().getContextClassLoader();
try {
Thread.currentThread().setContextClassLoader(getEmsBean().getClass().getClassLoader());
String rawProxyInfo = JBossHelper.getRawProxyInfo(getEmsBean());
ProxyInfo proxyInfo = new ProxyInfo(rawProxyInfo);
ProxyInfo.Context context = ProxyInfo.Context.fromString(resourceContext.getResourceKey());
int indexOfCurrentContext = proxyInfo.getAvailableContexts().indexOf(context);
if (indexOfCurrentContext != -1) {
ProxyInfo.Context currentContext = proxyInfo.getAvailableContexts().get(indexOfCurrentContext);
if (currentContext.isEnabled()) {
return AvailabilityType.UP;
}
}
return AvailabilityType.DOWN;
} catch (Exception e) {
log.info(e);
return AvailabilityType.DOWN;
} finally {
Thread.currentThread().setContextClassLoader(cl);
}
}
@Override
public OperationResult invokeOperation(String name, Configuration parameters) throws Exception {
if ("enableContext".equals(name) || "disableContext".equals(name) || "stopContext".equals(name)) {
ProxyInfo.Context context = ProxyInfo.Context.fromString(resourceContext.getResourceKey());
Object[] configuration = null;
if ("stopContext".equals(name)) {
configuration = new Object[] { context.getHost(), context.getPath(),
parameters.getSimple("timeout").getLongValue(),
TimeUnit.valueOf(parameters.getSimple("unit").getStringValue()) };
} else {
configuration = new Object[] { context.getHost(), context.getPath() };
}
if (context.getPath().equals("/")) {
configuration[1] = "ROOT";
}
log.info(name + " - " + context.getHost() + " " + context.getPath());
ClassLoader cl = Thread.currentThread().getContextClassLoader();
try {
Thread.currentThread().setContextClassLoader(getEmsBean().getClass().getClassLoader());
Object resultObject = getEmsBean().getOperation(name).invoke(configuration);
if (resultObject instanceof OperationResult) {
return (OperationResult) resultObject;
} else {
return new OperationResult(String.valueOf(resultObject));
}
} finally {
Thread.currentThread().setContextClassLoader(cl);
}
}
throw new Exception("Operation " + name + " not available mod_cluster WebApp service.");
}
}