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/*
* NodeAgentRegistry.java
*
* Created on September 12, 2003, 3:46 PM
*/
package com.sun.enterprise.ee.admin.clientreg;
import javax.management.MBeanServerConnection;
import com.sun.enterprise.config.serverbeans.JmxConnector;
import com.sun.enterprise.config.serverbeans.ElementProperty;
import com.sun.enterprise.config.serverbeans.NodeAgentHelper;
import com.sun.enterprise.admin.util.IAdminConstants;
import com.sun.enterprise.admin.util.JMXConnectorConfig;
import com.sun.enterprise.admin.server.core.AdminService;
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.ee.admin.servermgmt.AgentException;
import com.sun.enterprise.util.i18n.StringManager;
import java.io.IOException;
/**
* @author kebbs
*
* Class NodeAgentRegistry maintains a list of MBeanServer connections to one
* or more Node Agents.
*/
public class NodeAgentRegistry extends JMXConnectorRegistry implements IAdminConstants {
private static final StringManager _strMgr =
StringManager.getManager(NodeAgentRegistry.class);
// There is only one NodeAgentRegistry
private static NodeAgentRegistry _registry = null;
private NodeAgentRegistry () {
super();
_registry = this;
}
/**
* Initialize and return the one and only one static Node Agent Registry.
*/
public synchronized static NodeAgentRegistry getNodeAgentRegistry() {
if (_registry == null) {
_registry = new NodeAgentRegistry();
}
return _registry;
}
protected MBeanServerConnectionInfo findConnectionInfo(
String nodeAgentName) throws AgentException
{
return findConnectionInfo(getConfigContext(), nodeAgentName);
}
/**
* Implementaiton of abstract method to return the system JmxConnector element
* associated with the given Node Agent.
*/
protected MBeanServerConnectionInfo findConnectionInfo(ConfigContext configContext,
String nodeAgentName) throws AgentException
{
try {
JMXConnectorConfig config = NodeAgentHelper.getJMXConnectorInfo(configContext,
nodeAgentName);
return new MBeanServerConnectionInfo(config);
} catch (Exception ex) {
throw new AgentException(ex);
}
}
private ConfigContext getConfigContext()
{
return AdminService.getAdminService().getAdminContext().getAdminConfigContext();
}
/**
* Return an MBeanServerConnection to the specifiec node agent.
*/
public static synchronized MBeanServerConnection getNodeAgentConnection(String nodeAgentName)
throws AgentException
{
return getNodeAgentRegistry().getConnection(nodeAgentName);
}
/**
* remove an MBeanServerConnection to the specifiec node agent from the cache
*/
public static synchronized void removeNodeAgentConnection(String nodeAgentName)
{
try {
getNodeAgentRegistry().removeConnectorFromCache(nodeAgentName);
} catch (IOException e) {
// don't care about the exception
}
}
public static synchronized void disconnectNodeAgentConnection(String nodeAgentName)
throws AgentException
{
try {
getNodeAgentRegistry().disconnectCachedConnector(nodeAgentName);
} catch (IOException ex) {
throw new AgentException(ex);
}
}
public static synchronized MBeanServerConnectionInfo getNodeAgentConnectionInfo(ConfigContext configContext,
String nodeAgentName) throws AgentException
{
return getNodeAgentRegistry().findConnectionInfo(configContext, nodeAgentName);
}
}