mq5.0-source.main.mq-broker.broker-core.src.main.java.com.sun.messaging.jmq.jmsserver.data.handlers.admin.PurgeDurableHandler Maven / Gradle / Ivy

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/*
 * @(#)PurgeDurableHandler.java	1.10 07/12/07
 */ 

package com.sun.messaging.jmq.jmsserver.data.handlers.admin;

import java.util.Hashtable;
import java.io.IOException;
import java.io.*;
import java.util.Vector;

import com.sun.messaging.jmq.io.Packet;
import com.sun.messaging.jmq.jmsserver.cluster.api.ha.HAMonitorService;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQConnection;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
import com.sun.messaging.jmq.jmsserver.core.Subscription;
import com.sun.messaging.jmq.io.*;
import com.sun.messaging.jmq.util.admin.MessageType;
import com.sun.messaging.jmq.util.log.Logger;
import com.sun.messaging.jmq.jmsserver.Globals;

public class PurgeDurableHandler extends AdminCmdHandler
{

    private static boolean DEBUG = getDEBUG();

    public PurgeDurableHandler(AdminDataHandler parent) {
	super(parent);
    }

    /**
     * Handle the incomming 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.INFO, this.getClass().getName() + ": " +
                "PurgeDurable: " + cmd_props);
        }

        int status = Status.OK;
        String errMsg = null;

	String durable = (String)cmd_props.get(MessageType.JMQ_DURABLE_NAME);
	String clientID = (String)cmd_props.get(MessageType.JMQ_CLIENT_ID);
        try {
            if (clientID != null && clientID.trim().length() == 0) {
                throw new BrokerException(
                    rb.getKString(rb.X_INVALID_CLIENTID, clientID),
                    Status.BAD_REQUEST);
            }
            HAMonitorService hamonitor = Globals.getHAMonitorService(); 
            if (hamonitor != null && hamonitor.inTakeover()) {
                status = Status.UNAVAILABLE;
                errMsg =  rb.getString(rb.E_CANNOT_PROCEED_TAKEOVER_IN_PROCESS);
                logger.log(Logger.WARNING, this.getClass().getName() + ": " + errMsg);
	    } else  {
                Subscription sub = Subscription.findDurableSubscription(clientID, durable);
                if (sub == null) {
                    errMsg = rb.getKString(rb.X_DURA_SUB_NOT_FOUND, 
                             Subscription.getDSubLogString(clientID, durable));
                    status = Status.NOT_FOUND;
                } else {
                    sub.purge();
                }
            }
        } catch (BrokerException ex) {
            status = ex.getStatusCode();
            errMsg = getMessageFromException(ex);
            if (status == Status.BAD_REQUEST ||
                status == Status.NOT_FOUND ||
                status == Status.UNAVAILABLE) {
                logger.log(logger.ERROR, errMsg);
            } else {
                logger.logStack(logger.ERROR, ex.getMessage(), ex);
            }
        }

	Packet reply = new Packet(con.useDirectBuffers());
	reply.setPacketType(PacketType.OBJECT_MESSAGE);

	setProperties(reply, MessageType.PURGE_DURABLE_REPLY, status, errMsg);
	parent.sendReply(con, cmd_msg, reply);
        return true;
    }
}