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package com.sun.enterprise.web.connector.extension;
import java.util.Iterator;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import javax.management.Attribute;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectInstance;
import javax.management.j2ee.statistics.Stats;
import com.sun.enterprise.admin.monitor.registry.MonitoringRegistry;
import com.sun.enterprise.admin.monitor.registry.MonitoringRegistrationException;
import com.sun.enterprise.admin.monitor.registry.MonitoringLevel;
import com.sun.enterprise.admin.monitor.registry.MonitoringLevelListener;
import com.sun.enterprise.admin.monitor.registry.MonitoredObjectType;
import com.sun.enterprise.config.serverbeans.ModuleMonitoringLevels;
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.config.serverbeans.ServerBeansFactory;
import com.sun.enterprise.config.serverbeans.Config;
import com.sun.enterprise.web.WebContainer;
import com.sun.enterprise.config.serverbeans.HttpService;
import com.sun.enterprise.config.serverbeans.HttpFileCache;
import com.sun.logging.LogDomains;
import com.sun.enterprise.config.ConfigException;
import java.util.ArrayList;
import java.util.logging.Logger;
import java.util.logging.Level;
import java.text.MessageFormat;
import javax.management.ObjectName;
import javax.management.MBeanServerFactory;
import javax.management.MBeanServer;
/**
* This class track monitoring or Grizzly, using JMX to invoke Grizzly main
* classes.
*
* @author Jeanfrancois Arcand
*/
public class GrizzlyConfig implements MonitoringLevelListener{
private final static Logger logger
= LogDomains.getLogger(LogDomains.WEB_LOGGER);
/**
* The mbean server used to lookup Grizzly.
*/
private MBeanServer mBeanServer;
/**
* Is monitoring already started.
*/
private boolean isMonitoringEnabled = false;
/**
* The JMX domain
*/
private String domain;
/**
* The port used to lookup Grizzly's Selector
*/
private int port;
/**
* The list of instance created. This list is not thread-safe.
*/
private static ArrayList<GrizzlyConfig>
grizzlyConfigList = new ArrayList<GrizzlyConfig>();
// --------------------------------------------------------------- //
/**
* Creates the monitoring helper.
*/
public GrizzlyConfig(String domain, int port){
this.domain = domain;
this.port = port;
// get an instance of the MBeanServer
ArrayList servers = MBeanServerFactory.findMBeanServer(null);
if(!servers.isEmpty())
mBeanServer = (MBeanServer)servers.get(0);
else
mBeanServer = MBeanServerFactory.createMBeanServer();
grizzlyConfigList.add(this);
}
public void initConfig(){
initMonitoringLevel();
}
private void initMonitoringLevel() {
try{
Config cfg = ServerBeansFactory
.getConfigBean(
WebContainer.getInstance().getServerContext().getConfigContext());
MonitoringLevel monitoringLevel = MonitoringLevel.OFF; // default per DTD
if (cfg.getMonitoringService() != null) {
ModuleMonitoringLevels levels =
cfg.getMonitoringService().getModuleMonitoringLevels();
if (levels != null) {
monitoringLevel = MonitoringLevel.instance(
levels.getHttpService());
}
}
if(MonitoringLevel.OFF.equals(monitoringLevel)) {
isMonitoringEnabled = false;
} else {
isMonitoringEnabled = true;
}
String methodToInvoke = isMonitoringEnabled ? "enableMonitoring" :
"disableMonitoring";
invokeGrizzly(methodToInvoke);
} catch (Exception ex) {
logger.log(Level.WARNING,
"selectorThread.initMonitoringException",
new Object[]{new Integer(port),ex});
}
}
public void registerMonitoringLevelEvents() {
MonitoringRegistry monitoringRegistry =
WebContainer.getInstance().getServerContext().getMonitoringRegistry();
monitoringRegistry.registerMonitoringLevelListener(
this, MonitoredObjectType.HTTP_LISTENER);
}
public void unregisterMonitoringLevelEvents() {
MonitoringRegistry monitoringRegistry =
WebContainer.getInstance().getServerContext().getMonitoringRegistry();
monitoringRegistry.unregisterMonitoringLevelListener(this);
}
public void setLevel(MonitoringLevel level) {
// deprecated, ignore
}
public void changeLevel(MonitoringLevel from, MonitoringLevel to,
MonitoredObjectType type) {
if (MonitoredObjectType.HTTP_LISTENER.equals(type)) {
if(MonitoringLevel.OFF.equals(to)) {
isMonitoringEnabled = false;
} else {
isMonitoringEnabled = true;
}
}
String methodToInvoke = isMonitoringEnabled ? "enableMonitoring" :
"disabledMonitoring";
invokeGrizzly(methodToInvoke);
}
public void changeLevel(MonitoringLevel from, MonitoringLevel to,
Stats handback) {
// deprecated, ignore
}
protected final void invokeGrizzly(String methodToInvoke) {
invokeGrizzly(methodToInvoke,null,null);
}
protected final void invokeGrizzly(String methodToInvoke,
Object[] objects, String[] signature) {
try{
String onStr = domain + ":type=Selector,name=http" + port;
ObjectName objectName = new ObjectName(onStr);
mBeanServer.invoke(objectName,methodToInvoke,objects,signature);
} catch ( Exception ex ){
throw new RuntimeException(ex);
}
}
/**
* Enable CallFlow gathering mechanism.
*/
public final void setEnableCallFlow(boolean enableCallFlow){
String methodToInvoke = enableCallFlow ? "enableMonitoring" :
"disabledMonitoring";
invokeGrizzly(methodToInvoke);
}
/**
* Return the list of all instance of this class.
*/
public static ArrayList<GrizzlyConfig> getGrizzlyConfigInstances(){
return grizzlyConfigList;
}
/**
* Return the port this configuration belongs.
*/
public int getPort(){
return port;
}
}
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