/**
*
* Copyright 2003-2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.geronimo.connector.outbound;
import javax.resource.ResourceException;
import javax.resource.spi.LocalTransaction;
import javax.transaction.xa.XAException;
import javax.transaction.xa.XAResource;
import javax.transaction.xa.Xid;
import org.apache.geronimo.transaction.manager.NamedXAResource;
/**
* LocalXAResource adapts a local transaction to be controlled by a
* JTA transaction manager. Of course, it cannot provide xa
* semantics.
*
*
* @version $Rev: 46019 $ $Date: 2004-09-14 03:56:06 -0600 (Tue, 14 Sep 2004) $
*/
public class LocalXAResource implements NamedXAResource {
//accessible in package for testing
final LocalTransaction localTransaction;
private final String name;
private Xid xid;
private int transactionTimeout;
public LocalXAResource(LocalTransaction localTransaction, String name) {
this.localTransaction = localTransaction;
this.name = name;
}
// Implementation of javax.transaction.xa.XAResource
public void commit(Xid xid, boolean flag) throws XAException {
if (this.xid == null || !this.xid.equals(xid)) {
throw new XAException();
}
try {
localTransaction.commit();
} catch (ResourceException e) {
throw (XAException)new XAException().initCause(e);
} finally {
this.xid = null;
}
}
public void forget(Xid xid) throws XAException {
this.xid = null;
}
public int getTransactionTimeout() throws XAException {
return transactionTimeout;
}
public boolean isSameRM(XAResource xares) throws XAException {
return this == xares;
}
public Xid[] recover(int n) throws XAException {
return new Xid[0];
}
public void rollback(Xid xid) throws XAException {
if (this.xid == null || !this.xid.equals(xid)) {
throw new XAException();
}
try {
localTransaction.rollback();
} catch (ResourceException e) {
throw (XAException)new XAException().initCause(e);
} finally {
this.xid = null;
}
}
public boolean setTransactionTimeout(int txTimeout) throws XAException {
this.transactionTimeout = txTimeout;
return true;
}
public void start(Xid xid, int flag) throws XAException {
if (flag == XAResource.TMNOFLAGS) {
// first time in this transaction
if (this.xid != null) {
throw new XAException("already enlisted");
}
this.xid = xid;
try {
localTransaction.begin();
} catch (ResourceException e) {
throw (XAException) new XAException("could not start local tx").initCause(e);
}
} else if (flag == XAResource.TMRESUME) {
if (xid != this.xid) {
throw new XAException("attempting to resume in different transaction");
}
} else {
throw new XAException("unknown state");
}
}
public void end(Xid xid, int flag) throws XAException {
if (xid != this.xid) {
throw new XAException();
}
//we could keep track of if the flag is TMSUCCESS...
}
public int prepare(Xid xid) throws XAException {
//log warning that semantics are incorrect...
return XAResource.XA_OK;
}
public String getName() {
return name;
}
}