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package com.sun.jersey.server.spi.monitoring.glassfish;
import com.sun.enterprise.config.serverbeans.Application;
import com.sun.enterprise.config.serverbeans.Domain;
import com.sun.jersey.server.impl.uri.rules.ResourceClassRule;
import com.sun.jersey.server.impl.uri.rules.ResourceObjectRule;
import com.sun.jersey.server.impl.uri.rules.SubLocatorRule;
import com.sun.jersey.server.spi.monitoring.glassfish.probes.UriRuleProbeProvider;
import com.sun.jersey.server.spi.monitoring.glassfish.ruleevents.AbstractRuleEvent;
import com.sun.jersey.server.spi.monitoring.glassfish.ruleevents.DummyRuleEvent;
import com.sun.jersey.server.spi.monitoring.glassfish.ruleevents.ResourceClassRuleEvent;
import com.sun.jersey.server.spi.monitoring.glassfish.ruleevents.ResourceObjectRuleEvent;
import com.sun.jersey.server.spi.monitoring.glassfish.ruleevents.SubLocatorRuleEvent;
import org.glassfish.api.monitoring.ContainerMonitoring;
import org.glassfish.external.probe.provider.PluginPoint;
import org.glassfish.external.probe.provider.StatsProviderManager;
import org.glassfish.external.probe.provider.annotations.ProbeListener;
import org.glassfish.external.probe.provider.annotations.ProbeParam;
import org.glassfish.internal.api.Globals;
import org.jvnet.hk2.component.Habitat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author pavel.bucek@sun.com
*/
public class GlobalStatsProvider {
private Map<String, ApplicationStatsProvider> applicationStatsProviders;
private static GlobalStatsProvider INSTANCE = null;
private boolean registered = false;
private ThreadLocal<List<AbstractRuleEvent>> ruleEvents = new ThreadLocal<List<AbstractRuleEvent>>() {
@Override
protected List<AbstractRuleEvent> initialValue() {
return new ArrayList<AbstractRuleEvent>();
}
};
private ThreadLocal<ApplicationStatsProvider> currentApplicationStatProvider
= new ThreadLocal<ApplicationStatsProvider>();
private GlobalStatsProvider() {
applicationStatsProviders = new HashMap<String, ApplicationStatsProvider>();
}
public static synchronized GlobalStatsProvider getInstance() {
if(INSTANCE == null)
INSTANCE = new GlobalStatsProvider();
return INSTANCE;
}
/**
* checks whether GlobalStatsProvider is registered
*/
public synchronized void register() {
if(!registered) {
StatsProviderManager.register(ContainerMonitoring.JERSEY, PluginPoint.SERVER, "", this);
Logger.getLogger(GlassfishMonitoringServiceProvider.LOGGER_JERSEY_MONITORING).log(Level.INFO, "GlobalStatsProvider registered");
registered = true;
}
}
@ProbeListener("glassfish:jersey:server-hidden:requestStart")
public void requestStart(@ProbeParam("requestUri") java.net.URI requestUri) {
UriRuleProbeProvider.requestStart(requestUri.toString());
// add application to applications (global "statistics")
String applicationName = getApplicationName(requestUri.getPath());
ApplicationStatsProvider applicationStatsProvider;
if (!applicationStatsProviders.containsKey(applicationName)) {
//register new ApplicationStatsProvider
applicationStatsProvider = new ApplicationStatsProvider(applicationName);
applicationStatsProviders.put(applicationName, applicationStatsProvider);
// strange functionality of PluginPoint.APPLICATIONS; it causes to
// managed object be registered as "server.server.applications.jersey..."
// and we ant to have it as "server.applications
// StatsProviderManager.register("glassfish", PluginPoint.APPLICATIONS,
// appName + "/jersey/resources", applicationStatsProvider);
// workaround for ^^^
StatsProviderManager.register(ContainerMonitoring.JERSEY,
PluginPoint.SERVER, "applications/" + applicationName + "/jersey/resources",
applicationStatsProvider);
Logger.getLogger(GlassfishMonitoringServiceProvider.LOGGER_JERSEY_MONITORING).log(Level.INFO, "ApplicationStatsProvider for application \"" + applicationName + "\" registered");
} else {
applicationStatsProvider = applicationStatsProviders.get(applicationName);
}
currentApplicationStatProvider.set(applicationStatsProvider);
}
private String getApplicationName(String path) {
Habitat habitat = Globals.getDefaultHabitat();
Domain domain = habitat.getInhabitantByType(Domain.class).get();
List<Application> applicationList = domain.getApplications().getApplications();
// looks like path always ends with "/" .. but just to be sure..
for(Application app : applicationList) {
if( path.startsWith(app.getContextRoot() + "/") ||
path.equals(app.getContextRoot()))
return app.getName();
}
return null;
}
@ProbeListener("glassfish:jersey:server-hidden:ruleAccept")
public void ruleAccept(
@ProbeParam("ruleName") String ruleName,
@ProbeParam("path") CharSequence path,
@ProbeParam("resource") Object resource) {
UriRuleProbeProvider.ruleAccept(ruleName, path.toString(), (resource == null ? "null" : resource.getClass().getName()));
AbstractRuleEvent ruleEvent;
if(ruleName.equals(ResourceClassRule.class.getSimpleName())) {
ruleEvent = new ResourceClassRuleEvent(ruleName, path, resource, ruleEvents.get());
} else if(ruleName.equals(SubLocatorRule.class.getSimpleName())) {
ruleEvent = new SubLocatorRuleEvent(ruleName, path, resource, ruleEvents.get());
} else if(ruleName.equals(ResourceObjectRule.class.getSimpleName())) {
ruleEvent = new ResourceObjectRuleEvent(ruleName, path, resource, ruleEvents.get());
} else {
ruleEvent = new DummyRuleEvent(ruleName, path, resource);
}
ruleEvents.get().add(ruleEvent);
}
@ProbeListener("glassfish:jersey:server-hidden:requestEnd")
public void requestEnd() {
for(AbstractRuleEvent ruleEvent : ruleEvents.get()) {
ruleEvent.process(currentApplicationStatProvider.get());
}
// clean ruleEvents list
ruleEvents.get().clear();
UriRuleProbeProvider.requestEnd();
}
}