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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package net.java.visualvm.modules.glassfish.datasource;
import com.sun.appserv.management.monitor.ServletMonitor;
import com.sun.tools.visualvm.core.datasource.DataSourceRepository;
import com.sun.tools.visualvm.core.datasupport.DataChangeEvent;
import com.sun.tools.visualvm.core.datasupport.DataChangeListener;
import com.sun.tools.visualvm.core.datasupport.DataRemovedListener;
import java.util.Map;
import java.util.Set;
/**
*
* @author Jaroslav Bachorik
*/
public class GlassFishServletProvider implements DataChangeListener<GlassFishWebModule>, DataRemovedListener<GlassFishWebModule> {
private final static GlassFishServletProvider INSTANCE = new GlassFishServletProvider();
private GlassFishServletProvider() {}
//~ Methods ------------------------------------------------------------------------------------------------------------------
public void dataChanged(DataChangeEvent<GlassFishWebModule> event) {
if (event.getAdded().isEmpty() && event.getRemoved().isEmpty()) {
// Initial event to deliver DataSources already created by the provider before registering to it as a listener
// NOTE: already existing hosts are treated as new for this provider
Set<GlassFishWebModule> newModules = event.getCurrent();
for (GlassFishWebModule module : newModules) {
processNewWebModule(module);
}
} else {
// Real delta event
Set<GlassFishWebModule> newModules = event.getAdded();
for (GlassFishWebModule module : newModules) {
processNewWebModule(module);
}
}
}
public static void initialize() {
DataSourceRepository.sharedInstance().addDataChangeListener(INSTANCE, GlassFishWebModule.class);
}
public static void shutdown() {
DataSourceRepository.sharedInstance().removeDataChangeListener(INSTANCE);
}
public void dataRemoved(GlassFishWebModule module) {
processFinishedModule(module);
}
private void processFinishedModule(GlassFishWebModule module) {
// TODO: remove listener!!!
Set<GlassFishServlet> monitoredServlets = module.getRepository().getDataSources(GlassFishServlet.class);
module.getRepository().removeDataSources(monitoredServlets);
}
private void processNewWebModule(final GlassFishWebModule module) {
for (Map.Entry<String, ServletMonitor> monitorEntry : module.getMonitor().getServletMonitorMap().entrySet()) {
GlassFishServlet servlet = new GlassFishServlet(monitorEntry.getKey(), module, monitorEntry.getValue());
module.getRepository().addDataSource(servlet);
}
module.notifyWhenRemoved(this);
}
}