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/*
* @(#)SessionHandler.java 1.19 06/28/07
*/
package com.sun.messaging.jmq.jmsserver.data.handlers;
import java.util.*;
import java.io.*;
import com.sun.messaging.jmq.jmsserver.data.PacketHandler;
import com.sun.messaging.jmq.util.DestType;
import com.sun.messaging.jmq.io.*;
import com.sun.messaging.jmq.jmsserver.service.Connection;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQConnection;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQBasicConnection;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
import com.sun.messaging.jmq.jmsserver.core.Consumer;
import com.sun.messaging.jmq.jmsserver.core.ConsumerUID;
import com.sun.messaging.jmq.jmsserver.util.PacketUtil;
import com.sun.messaging.jmq.jmsserver.resources.BrokerResources;
import com.sun.messaging.jmq.util.log.Logger;
import com.sun.messaging.jmq.jmsserver.Globals;
import com.sun.messaging.jmq.jmsserver.core.Destination;
import com.sun.messaging.jmq.jmsserver.core.Session;
import com.sun.messaging.jmq.jmsserver.core.SessionUID;
public class SessionHandler extends PacketHandler
{
private Logger logger = Globals.getLogger();
private static boolean DEBUG = false;
public SessionHandler() {
}
public Session createSession(int stype, String creator, IMQConnection con,
boolean isIndemp)
throws BrokerException
{
Session session = null;
if (isIndemp) {
session = Session.getSession(creator);
}
if (session == null) {
session = Session.createSession(con.getConnectionUID(),
creator);
session.setAckType(stype);
con.attachSession(session);
}
return session;
}
public void closeSession(SessionUID sessionID, IMQConnection con, boolean isIndemp)
throws BrokerException
{
if (!isIndemp || Session.getSession(sessionID) != null) {
assert con.getSession(sessionID) != null;
Session.closeSession(sessionID);
con.closeSession(sessionID);
}
}
/**
* Method to handle Session(add or delete) messages
*/
public boolean handle(IMQConnection con, Packet msg)
throws BrokerException
{
int status = Status.OK;
String reason = null;
Hashtable hash = new Hashtable(); // return props
boolean isIndemp = msg.getIndempotent();
try {
Hashtable props = msg.getProperties();
Session session = null;
if (msg.getPacketType() == PacketType.CREATE_SESSION) {
Integer ack = (props == null ? null :
(Integer)props.get("JMQAckMode"));
// if we dont know, treat like client ack
int stype = (ack == null ? Session.NONE
: ack.intValue());
session = createSession(stype, msg.getSysMessageID().toString(),
con, isIndemp);
hash.put("JMQSessionID", new Long(
session.getSessionUID().longValue()));
} else {
assert msg.getPacketType() == PacketType.DESTROY_SESSION;
Long lsessionid = (Long)props.get("JMQSessionID");
if (lsessionid == null) {
throw new BrokerException(
Globals.getBrokerResources().getString(
BrokerResources.X_INTERNAL_EXCEPTION,
"protocol error, no session"));
}
SessionUID sessionID = new SessionUID(
lsessionid.longValue());
closeSession(sessionID, con, isIndemp);
}
} catch (Exception ex) {
boolean log = false;
reason = ex.getMessage();
if (ex instanceof BrokerException) {
status = ((BrokerException)ex).getStatusCode();
log = false;
} else {
status = Status.ERROR;
log = true;
}
if (log) {
logger.logStack(Logger.INFO,
Globals.getBrokerResources().getString(
BrokerResources.X_INTERNAL_EXCEPTION,
" session "),ex);
} else {
logger.log(Logger.INFO, ex.getMessage());
}
}
hash.put("JMQStatus", new Integer(status));
if (reason != null)
hash.put("JMQReason", reason);
if (msg.getSendAcknowledge()) {
Packet pkt = new Packet(con.useDirectBuffers());
pkt.setConsumerID(msg.getConsumerID()); // correlation ID
pkt.setPacketType(msg.getPacketType()+1);
pkt.setProperties(hash);
con.sendControlMessage(pkt);
}
return true;
}
}