Package org.apache.activemq.transaction

Source Code of org.apache.activemq.transaction.LocalTransaction

/**
* 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.transaction;

import java.io.IOException;

import javax.transaction.xa.XAException;

import org.apache.activemq.broker.ConnectionContext;
import org.apache.activemq.command.LocalTransactionId;
import org.apache.activemq.command.TransactionId;
import org.apache.activemq.store.TransactionStore;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
* @version $Revision: 1.3 $
*/
public class LocalTransaction extends Transaction {

    private static final Log LOG = LogFactory.getLog(LocalTransaction.class);

    private final TransactionStore transactionStore;
    private final LocalTransactionId xid;
    private final ConnectionContext context;

    public LocalTransaction(TransactionStore transactionStore, LocalTransactionId xid, ConnectionContext context) {
        this.transactionStore = transactionStore;
        this.xid = xid;
        this.context = context;
    }

    public void commit(boolean onePhase) throws XAException, IOException {
        // Get ready for commit.
        try {
            prePrepare();
        } catch (XAException e) {
            throw e;
        } catch (Throwable e) {
            LOG.warn("COMMIT FAILED: ", e);
            rollback();
            // Let them know we rolled back.
            XAException xae = new XAException("COMMIT FAILED: Transaction rolled back.");
            xae.errorCode = XAException.XA_RBOTHER;
            xae.initCause(e);
            throw xae;
        }

        setState(Transaction.FINISHED_STATE);
        context.getTransactions().remove(xid);
        transactionStore.commit(getTransactionId(), false);

        try {
            fireAfterCommit();
        } catch (Throwable e) {
            // I guess this could happen. Post commit task failed
            // to execute properly.
            LOG.warn("POST COMMIT FAILED: ", e);
            XAException xae = new XAException("POST COMMIT FAILED");
            xae.errorCode = XAException.XAER_RMERR;
            xae.initCause(e);
            throw xae;
        }
    }

    public void rollback() throws XAException, IOException {

        setState(Transaction.FINISHED_STATE);
        context.getTransactions().remove(xid);
        transactionStore.rollback(getTransactionId());

        try {
            fireAfterRollback();
        } catch (Throwable e) {
            LOG.warn("POST ROLLBACK FAILED: ", e);
            XAException xae = new XAException("POST ROLLBACK FAILED");
            xae.errorCode = XAException.XAER_RMERR;
            xae.initCause(e);
            throw xae;
        }
    }

    public int prepare() throws XAException {
        XAException xae = new XAException("Prepare not implemented on Local Transactions.");
        xae.errorCode = XAException.XAER_RMERR;
        throw xae;
    }

    public TransactionId getTransactionId() {
        return xid;
    }

}
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