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/*
* RemoteMBeanElementChangeEventListenerImpl.java
*
* Created on July 29, 2005, 12:46 AM
*/
package com.sun.enterprise.ee.admin.mbeans;
import com.sun.enterprise.admin.common.JMXFileTransfer;
import com.sun.enterprise.admin.common.ObjectNames;
import com.sun.enterprise.admin.common.constant.AdminConstants;
import com.sun.enterprise.admin.event.AdminEventListenerException;
import com.sun.enterprise.admin.event.MBeanElementChangeEvent;
import com.sun.enterprise.admin.event.MBeanElementChangeEventListener;
import com.sun.enterprise.admin.mbeans.custom.InProcessMBeanElementChangeEventListenerImpl;
import com.sun.enterprise.admin.mbeans.custom.CMBStrings;
import com.sun.enterprise.config.ConfigAdd;
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.config.serverbeans.Mbean;
import com.sun.enterprise.ee.admin.clientreg.InstanceRegistry;
import com.sun.enterprise.util.SystemPropertyConstants;
import java.io.File;
import java.util.ArrayList;
import java.util.logging.Logger;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
/**
*/
public class RemoteMBeanElementChangeEventListenerImpl extends InProcessMBeanElementChangeEventListenerImpl
implements MBeanElementChangeEventListener {
final Logger logger = Logger.getLogger(AdminConstants.kLoggerName);
/** Creates a new instance of RemoteMBeanElementChangeEventListenerImpl */
public RemoteMBeanElementChangeEventListenerImpl() {
}
public void handleUpdate(final MBeanElementChangeEvent event) throws AdminEventListenerException {
logger.info(CMBStrings.get("cmb.ee.handleUpdate", event.getElementId(), event.EVENT_TYPE));
super.handleUpdate(event);
}
public void handleDelete(final MBeanElementChangeEvent event) throws AdminEventListenerException {
logger.info(CMBStrings.get("cmb.ee.handleDelete", event.getElementId(), event.EVENT_TYPE));
super.handleDelete(event);
}
public void handleCreate(final MBeanElementChangeEvent event) throws AdminEventListenerException {
logger.info(CMBStrings.get("cmb.ee.handleCreate", event.getElementId(), event.EVENT_TYPE));
//synchronize the bits of the classes and ask the super implementation to load the mbean
try {
synchronizeMBeanClasses(event);
} catch (final Exception e) {
throw new AdminEventListenerException(e);
}
super.handleCreate(event);
}
private void synchronizeMBeanClasses(final MBeanElementChangeEvent event) throws Exception {
final ArrayList<ConfigAdd> list = event.getConfigChangeList(); // I know that they are ConfigAdd's
final ConfigContext rcc = event.getConfigContext();
for (final ConfigAdd added : list) {
final String xp = added.getXPath();
if (xp != null) {
final Object co = rcc.exactLookup(xp);
if (co instanceof Mbean) {
final Mbean am = (Mbean)co;
final String icn = am.getImplClassName();
synchronizeClass(icn, rcc);
}
}
}
}
private void synchronizeClass(final String c, final ConfigContext rcc) throws Exception {
final MBeanServerConnection mbsc = InstanceRegistry.getDASConnection(rcc);
final String remLoc = getAbsoluteDASMBeanClassLocation(mbsc, c);
final String locLoc = getAbsoluteLocalClassFolder(c);
final JMXFileTransfer ftp = new JMXFileTransfer(mbsc);
final File destPath = new File(locLoc);
if (!destPath.exists()) {
final boolean touched = destPath.mkdirs();
String msg;
if(touched)
msg = CMBStrings.get("cmb.ee.mkdirGood", destPath);
else
msg = CMBStrings.get("cmb.ee.mkdirBad", destPath);
logger.info(msg);
}
ftp.downloadFile(remLoc, locLoc);
logger.info(CMBStrings.get("cmb.ee.downloadClass", locLoc));
//now synchronize possible standard mbean interface
final String sbiRemLoc = remLoc.substring(0, remLoc.lastIndexOf(".class")) + "MBean.class";
try {
ftp.downloadFile(sbiRemLoc, locLoc);
logger.info(CMBStrings.get("cmb.ee.downloadInterfaceGood", sbiRemLoc));
} catch(final Exception e) {
logger.info(CMBStrings.get("cmb.ee.downloadInterfaceBad"));
}
}
private String getAbsoluteDASMBeanClassLocation(final MBeanServerConnection mbsc, final String cn) throws Exception {
final String dasName = SystemPropertyConstants.DEFAULT_SERVER_INSTANCE_NAME;
final String instanceRootPropertyName = SystemPropertyConstants.INSTANCE_ROOT_PROPERTY;
final ObjectName remSSMBeanON = ObjectNames.getPerInstanceSystemServicesObjectName(dasName);
final String m = "getHostServerSystemPropertyValue";
final Object[] p = new String[]{instanceRootPropertyName};
final String[] s = new String[]{"java.lang.String"};
final String remoteInstanceRoot = (String) mbsc.invoke(remSSMBeanON, m, p, s);
logger.info(CMBStrings.get("cmb.ee.instanceRoot", remoteInstanceRoot));
final String remoteMBeansLocation = remoteInstanceRoot + "/applications/mbeans/"; // need to do better here TODO
logger.info(CMBStrings.get("cmb.ee.remoteLocation", remoteMBeansLocation));
final String remoteMBeanPath = remoteMBeansLocation + cn.replace('.', '/') + ".class";
logger.info(CMBStrings.get("cmb.ee.remotePath", remoteMBeanPath));
return ( remoteMBeanPath );
}
private String getAbsoluteLocalClassFolder(final String c) throws Exception {
final String localMBeansLocation = System.getProperty(SystemPropertyConstants.INSTANCE_ROOT_PROPERTY) + "/applications/mbeans/";
final String localDestinationPath = localMBeansLocation + cn2dn(c);
logger.info(CMBStrings.get("cmb.ee.copyLocation", localDestinationPath));
return ( localDestinationPath );
}
private String cn2dn(final String fc) throws Exception {
String p = ""; //empty string, for classes in "default" anonymous package
String c = fc;
if (c.indexOf(".class") != -1) // strip out the ".class" if present
c = c.substring(0, c.lastIndexOf(".class"));
if (c.indexOf('.') != -1) {
p = c.substring(0, c.lastIndexOf('.'));
p = p.replace('.', '/');
}
return ( p );
}
}