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/*
* @(#)VerifyTransactionHandler.java 1.14 06/28/07
*/
package com.sun.messaging.jmq.jmsserver.data.handlers;
import java.util.*;
import java.io.*;
import java.nio.ByteBuffer;
import com.sun.messaging.jmq.jmsserver.data.*;
import com.sun.messaging.jmq.jmsserver.resources.*;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
import com.sun.messaging.jmq.io.*;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQConnection;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQBasicConnection;
import com.sun.messaging.jmq.util.JMQXid;
import com.sun.messaging.jmq.util.log.Logger;
import com.sun.messaging.jmq.jmsserver.Globals;
/**
* Handler class which deals with starting/stoping the delivery of
* messages to a specific connection
*/
public class VerifyTransactionHandler extends PacketHandler
{
private Logger logger = Globals.getLogger();
private static boolean DEBUG = false;
TransactionList translist = null;
public VerifyTransactionHandler(TransactionList list) {
this.translist = list;
}
/**
* Method to handle Destination (create or delete) messages
*/
public boolean handle(IMQConnection con, Packet msg)
throws BrokerException
{
int status = Status.OK;
String reason = null;
assert msg.getPacketType() == PacketType.VERIFY_TRANSACTION;
Packet pkt = new Packet(con.useDirectBuffers());
pkt.setConsumerID(msg.getConsumerID());
pkt.setPacketType(PacketType.VERIFY_TRANSACTION_REPLY);
Hashtable hash = new Hashtable();
Hashtable props = null;
TransactionUID tuid = null;
JMQXid xid = null;
try {
props = msg.getProperties();
Long ttid = (Long)props.get("JMQTransactionID");
if (ttid == null) {
throw new BrokerException("Bad/Missing transaction id");
}
ByteBuffer body = msg.getMessageBodyByteBuffer();
if (body != null) {
JMQByteBufferInputStream bbis = new JMQByteBufferInputStream(body);
try {
xid = JMQXid.read(new DataInputStream(bbis));
} catch (IOException e) {
logger.log(Logger.ERROR,
BrokerResources.E_INTERNAL_BROKER_ERROR,
"Could not decode xid from packet " +
PacketType.getString(msg.getPacketType())+":"+e);
BrokerException bex = new BrokerException(e.getMessage(), Status.BAD_REQUEST);
bex.initCause(e);
throw bex;
}
}
long tid = ttid.longValue();
if (tid != 0) {
tuid = new TransactionUID(tid);
} else if (xid != null) {
tuid = translist.xidToUID(xid);
if (tuid == null) {
String emsg = Globals.getBrokerResources().getKString(
BrokerResources.W_UNKNOWN_XID, ""+xid,
PacketType.getString(msg.getPacketType()));
logger.log(Logger.WARNING, emsg);
throw new BrokerException("Unknown XID "+xid, Status.NOT_FOUND);
}
} else {
logger.log(Logger.ERROR,
BrokerResources.E_INTERNAL_BROKER_ERROR,
"No transaction ID in " +
PacketType.getString(msg.getPacketType()));
throw new BrokerException("No transaction ID" , Status.BAD_REQUEST);
}
TransactionState ts = translist.retrieveState(tuid, true);
if (ts == null) {
status = Status.GONE;
} else {
int realstate = ts.getState();
if (realstate != TransactionState.PREPARED) {
// LKS - XXX
// for now return GONE because it seems to work
// better for the client - revisit
throw new BrokerException("Transaction " + tuid +
" is not PREPARED " + ts, Status.GONE);
}
Hashtable m = translist.getTransactionMap(tuid, true);
// write it to the body
if (m != null) {
try {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(m);
oos.flush();
bos.flush();
pkt.setMessageBody(bos.toByteArray());
bos.close();
} catch (Exception ex) {
logger.log(Logger.WARNING,
BrokerResources.E_INTERNAL_BROKER_ERROR,
" sending back broker data", ex);
}
}
}
} catch (BrokerException ex) {
reason = ex.getMessage();
status = ex.getStatusCode();
if (status != Status.GONE && status != Status.NOT_FOUND)
{
logger.logStack(Logger.INFO,
BrokerResources.E_INTERNAL_BROKER_ERROR,
"unknown status", ex);
} else {
logger.log(Logger.DEBUG,"Transaction " + tuid
+ " not found", ex);
}
} catch (Throwable ex) {
logger.logStack(Logger.INFO,
BrokerResources.E_INTERNAL_BROKER_ERROR,
"exception processing verify transaction ", ex);
reason = ex.toString();
status = Status.ERROR;
}
if (status == Status.GONE) { // convert to NF
status = Status.NOT_FOUND;
}
hash.put("JMQStatus", new Integer(status));
if (reason != null)
hash.put("JMQReason", reason);
if (((IMQBasicConnection)con).getDumpPacket() ||
((IMQBasicConnection)con).getDumpOutPacket())
hash.put("JMQReqID", msg.getSysMessageID().toString());
pkt.setProperties(hash);
con.sendControlMessage(pkt);
return true;
}
}