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/*
* @(#)ShutdownHandler.java 1.37 06/28/07
*/
package com.sun.messaging.jmq.jmsserver.data.handlers.admin;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import com.sun.messaging.jmq.io.Packet;
import com.sun.messaging.jmq.io.PacketType;
import com.sun.messaging.jmq.io.Status;
import com.sun.messaging.jmq.jmsserver.Broker;
import com.sun.messaging.jmq.jmsserver.BrokerStateHandler;
import com.sun.messaging.jmq.jmsserver.Globals;
import com.sun.messaging.jmq.jmsserver.audit.api.MQAuditSession;
import com.sun.messaging.jmq.jmsserver.management.util.ConnectionUtil;
import com.sun.messaging.jmq.jmsserver.resources.BrokerResources;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQConnection;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQBasicConnection;
import com.sun.messaging.jmq.util.ServiceType;
import com.sun.messaging.jmq.util.admin.ConnectionInfo;
import com.sun.messaging.jmq.util.admin.MessageType;
import com.sun.messaging.jmq.util.log.Logger;
public class ShutdownHandler extends AdminCmdHandler
{
private static boolean DEBUG = getDEBUG();
public ShutdownHandler(AdminDataHandler parent) {
super(parent);
}
/**
* Handle the incoming administration message.
*
* @param con The Connection the message came in on.
* @param cmd_msg The administration message
* @param cmd_props The properties from the administration message
*/
public boolean handle(IMQConnection con, Packet cmd_msg, Hashtable cmd_props) {
if (DEBUG) logger.log(Logger.DEBUG, this.getClass().getName() + ": " + "Shutting down broker: " + cmd_props);
boolean shouldRestart = true;
Boolean noFailover = null;
Integer time = null;
// extract the properties from the administration message
Boolean kill = (Boolean)cmd_props.get(MessageType.JMQ_KILL);
noFailover = (Boolean)cmd_props.get(MessageType.JMQ_NO_FAILOVER);
boolean failover = (noFailover == null ? true : !(noFailover.booleanValue()));
time = (Integer)cmd_props.get(MessageType.JMQ_TIME);
Boolean restart = (Boolean)cmd_props.get(MessageType.JMQ_RESTART);
// is this a restart?
shouldRestart = (restart == null ? false : restart.booleanValue());
if (shouldRestart) noFailover=Boolean.TRUE;
// Prepare reply
Packet reply = new Packet(con.useDirectBuffers());
reply.setPacketType(PacketType.OBJECT_MESSAGE);
// not allowed to shutdown an in-process broker that has direct connections
if (Broker.isInProcess() && !shouldRestart && hasDirectConnections()) {
//TODO COrrect this message
String error = rb.getString(BrokerResources.E_CANNOT_SHUTDOWN_IN_PROCESS);
setProperties(reply, MessageType.SHUTDOWN_REPLY, Status.ERROR, error);
parent.sendReply(con, cmd_msg, reply);
return true;
}
// not allowed to restart an in-process broker
if (Broker.isInProcess() && shouldRestart) {
String error = rb.getString(BrokerResources.E_CANNOT_RESTART_IN_PROCESS);
setProperties(reply, MessageType.SHUTDOWN_REPLY, Status.ERROR, error);
parent.sendReply(con, cmd_msg, reply);
return true;
}
// Check if this is a JMQKill message: this is used for testing and triggers an unsafe exit
// this could be done before the previous check if we wanted
if (kill != null && kill.booleanValue()) {
Broker.getBroker().removeShutdownHook(Broker.getBroker().shutdownHook);
System.exit(1);
}
// audit logging for broker restart/shutdown
Globals.getAuditSession().brokerOperation(
con.getUserName(), con.remoteHostString(),
shouldRestart ? MQAuditSession.BROKER_RESTART : MQAuditSession.BROKER_SHUTDOWN);
// now begin the shutdown sequence
try {
// stop taking new requests
Globals.getServiceManager().stopNewConnections(ServiceType.NORMAL);
if (time == null || time.intValue() == 0)
Globals.getServiceManager().stopNewConnections(ServiceType.ADMIN);
} catch (Exception ex) {
logger.logStack(Logger.WARNING, BrokerResources.E_INTERNAL_BROKER_ERROR, "unable to shutdown", ex);
} finally {
// send a reply to the client that we received the request
// currently we return OK even if we had an error during the shutdown
setProperties(reply, MessageType.SHUTDOWN_REPLY, Status.OK, null);
parent.sendReply(con, cmd_msg, reply);
if (con instanceof IMQBasicConnection) {
IMQBasicConnection ipCon = (IMQBasicConnection)con;
ipCon.flushControl(1000);
}
BrokerStateHandler bsh = Globals.getBrokerStateHandler();
if (time == null || time.intValue() == 0) {
// stop new connections
// set the flag to notify everyone we are shutting down
BrokerStateHandler.shuttingDown = true;
bsh.prepareShutdown(failover, false);
}
//if we aren't doing an unsafe exit, give us time to complete any operations
waitForHandlersToComplete(20);
// logging
if (shouldRestart) {
logger.log(Logger.INFO, BrokerResources.I_ADMIN_RESTART_REQUEST);
} else {
logger.log(Logger.INFO, BrokerResources.I_ADMIN_SHUTDOWN_REQUEST);
}
// shutdown the broker
bsh.initiateShutdown("admin", (time == null ? 0 : time.longValue())* 1000, failover, (shouldRestart ? BrokerStateHandler.getRestartCode() : 0), true);
}
return true;
}
private boolean hasDirectConnections() {
// Please keep this consistent with com.sun.messaging.jmq.jmsserver.management.mbeans.BrokerConfig.hasDirectConnections()
List connections = ConnectionUtil.getConnectionInfoList(null);
if (connections.size() == 0) {
return (false);
}
Iterator itr = connections.iterator();
int i = 0;
while (itr.hasNext()) {
ConnectionInfo cxnInfo = (ConnectionInfo) itr.next();
if (cxnInfo.service.equals("jmsdirect")){
return true;
}
}
return false;
}
}
