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ActiveMQ example source code file (LocalAndXATransaction.java)

This example ActiveMQ source code file (LocalAndXATransaction.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

jmsexception, jmsexception, localandxatransaction, localandxatransaction, localtransaction, resourceexception, resourceexception, transactioncontext, xaexception, xaexception, xaresource, xid

The ActiveMQ LocalAndXATransaction.java source code

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.activemq.ra;

import javax.jms.JMSException;
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.activemq.TransactionContext;

/**
 * Used to provide a LocalTransaction and XAResource to a JMS session.
 */
public class LocalAndXATransaction implements XAResource, LocalTransaction {

    private final TransactionContext transactionContext;
    private boolean inManagedTx;

    public LocalAndXATransaction(TransactionContext transactionContext) {
        this.transactionContext = transactionContext;
    }

    public void setInManagedTx(boolean inManagedTx) throws JMSException {
        this.inManagedTx = inManagedTx;
        if (!inManagedTx) {
            transactionContext.cleanup();
        }
    }

    public void begin() throws ResourceException {
        try {
            transactionContext.begin();
            setInManagedTx(true);
        } catch (JMSException e) {
            throw new ResourceException("begin failed.", e);
        }
    }

    public void commit() throws ResourceException {
        try {
            transactionContext.commit();
        } catch (JMSException e) {
            throw new ResourceException("commit failed.", e);
        } finally {
            try {
                setInManagedTx(false);
            } catch (JMSException e) {
                throw new ResourceException("commit failed.", e);
            }
        }
    }

    public void rollback() throws ResourceException {
        try {
            transactionContext.rollback();
        } catch (JMSException e) {
            throw new ResourceException("rollback failed.", e);
        } finally {
            try {
                setInManagedTx(false);
            } catch (JMSException e) {
                throw new ResourceException("rollback failed.", e);
            }
        }
    }

    public void commit(Xid arg0, boolean arg1) throws XAException {
        transactionContext.commit(arg0, arg1);
    }

    public void end(Xid arg0, int arg1) throws XAException {
        try {
            transactionContext.end(arg0, arg1);
        } finally {
            try {
                setInManagedTx(false);
            } catch (JMSException e) {
                throw (XAException)new XAException(XAException.XAER_PROTO).initCause(e);
            }
        }
    }

    public void forget(Xid arg0) throws XAException {
        transactionContext.forget(arg0);
    }

    public int getTransactionTimeout() throws XAException {
        return transactionContext.getTransactionTimeout();
    }

    public boolean isSameRM(XAResource xaresource) throws XAException {
        if (xaresource == null) {
            return false;
        }
        // Do we have to unwrap?
        if (xaresource instanceof LocalAndXATransaction) {
            xaresource = ((LocalAndXATransaction)xaresource).transactionContext;
        }
        return transactionContext.isSameRM(xaresource);
    }

    public int prepare(Xid arg0) throws XAException {
        return transactionContext.prepare(arg0);
    }

    public Xid[] recover(int arg0) throws XAException {
        return transactionContext.recover(arg0);
    }

    public void rollback(Xid arg0) throws XAException {
        transactionContext.rollback(arg0);
    }

    public boolean setTransactionTimeout(int arg0) throws XAException {
        return transactionContext.setTransactionTimeout(arg0);
    }

    public void start(Xid arg0, int arg1) throws XAException {
        transactionContext.start(arg0, arg1);
        try {
            setInManagedTx(true);
        } catch (JMSException e) {
            throw (XAException)new XAException(XAException.XAER_PROTO).initCause(e);
        }
    }

    public boolean isInManagedTx() {
        return inManagedTx;
    }

    public void cleanup() {
        transactionContext.cleanup();
        inManagedTx = false;
    }
}

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