Glassfish example source code file (JavaEETransactionManagerSimplifiedDelegate.java)

This example Glassfish source code file (JavaEETransactionManagerSimplifiedDelegate.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 - Glassfish tags/keywords

illegalstateexception, illegalstateexception, javaeetransaction, javaeetransactionmanagersimplifieddelegate, log, logging, rollbackexception, rollbackexception, securityexception, semaphore, string, systemexception, systemexception, threading, threads, transaction, transaction, unsupportedoperationexception, unsupportedoperationexception

The Glassfish JavaEETransactionManagerSimplifiedDelegate.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * recipient has the option to distribute your version of this file under
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 * and therefore, elected the GPL Version 2 license, then the option applies
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 */

package com.sun.enterprise.transaction;

import java.util.logging.Logger;
import java.util.logging.Level;
import java.util.concurrent.Semaphore;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

import javax.transaction.*;
import javax.transaction.xa.*;
import javax.resource.spi.XATerminator;
import javax.resource.spi.work.WorkException;

import com.sun.enterprise.transaction.api.JavaEETransaction;
import com.sun.enterprise.transaction.api.JavaEETransactionManager;
import com.sun.enterprise.transaction.api.TransactionAdminBean;
import com.sun.enterprise.transaction.api.XAResourceWrapper;
import com.sun.enterprise.transaction.spi.JavaEETransactionManagerDelegate;
import com.sun.enterprise.transaction.spi.TransactionalResource;
import com.sun.enterprise.transaction.spi.TransactionInternal;

import com.sun.enterprise.util.i18n.StringManager;

import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.component.PostConstruct;
import org.jvnet.hk2.annotations.Inject;

/**
 ** Implementation of JavaEETransactionManagerDelegate that supports only
 * local transactions with a single non-XA resource.
 *
 * @author Marina Vatkina
 */
@Service
public class JavaEETransactionManagerSimplifiedDelegate 
            implements JavaEETransactionManagerDelegate, PostConstruct {

    // @Inject 
    private JavaEETransactionManager tm;

    // Sting Manager for Localization
    private static StringManager sm
           = StringManager.getManager(JavaEETransactionManagerSimplified.class);

    private Logger _logger;

    private boolean lao = false;

    private static final ReentrantReadWriteLock.ReadLock readLock = 
            new ReentrantReadWriteLock().readLock();

    private final Semaphore writeLock = new Semaphore(1, true);

    public JavaEETransactionManagerSimplifiedDelegate() {
    }

    public void postConstruct() {
        // tm.setDelegate(this);
    }

    public boolean useLAO() {
         return lao;
    }

    public void setUseLAO(boolean b) {
        lao = b;
    }

    /** Throws an exception if called as it means that there is
     *  no active local transaction to commit.
     */
    public void commitDistributedTransaction() throws 
            RollbackException, HeuristicMixedException, 
            HeuristicRollbackException, SecurityException, 
            IllegalStateException, SystemException {

        throw new IllegalStateException(sm.getString(
                "enterprise_distributedtx.transaction_notactive"));
    } 

    /** Throws an exception if called as it means that there is
     *  no active local transaction to rollback.
     */
    public void rollbackDistributedTransaction() throws IllegalStateException, 
            SecurityException, SystemException {

        throw new IllegalStateException(sm.getString(
                "enterprise_distributedtx.transaction_notactive"));
    } 

    public int getStatus() throws SystemException {
        JavaEETransaction tx = tm.getCurrentTransaction();
        if ( tx != null && tx.isLocalTx())
            return tx.getStatus();
        else
            return javax.transaction.Status.STATUS_NO_TRANSACTION;
    }

    public Transaction getTransaction() throws SystemException {
        return  tm.getCurrentTransaction();
    }

    public JavaEETransaction getJavaEETransaction(Transaction t) {
        if(t instanceof JavaEETransaction){
            return  (JavaEETransaction)t;
        }

        throw new IllegalStateException(sm.getString("enterprise_distributedtx.nonxa_usein_jts"));
        
    }

    public boolean enlistDistributedNonXAResource(Transaction tran, TransactionalResource h)
           throws RollbackException, IllegalStateException, SystemException {
        throw new IllegalStateException(sm.getString("enterprise_distributedtx.nonxa_usein_jts"));
    }

    public boolean enlistLAOResource(Transaction tran, TransactionalResource h)
           throws RollbackException, IllegalStateException, SystemException {

        return false;
    }

    /** Throws an exception if called as it means that there is
     *  no active local transaction.
     */
    public void setRollbackOnlyDistributedTransaction()
            throws IllegalStateException, SystemException {

        throw new IllegalStateException(sm.getString(
                "enterprise_distributedtx.transaction_notactive"));
    }

    public Transaction suspend(JavaEETransaction tx) throws SystemException {
        if ( tx != null ) {
            tm.setCurrentTransaction(null);
        }

        return tx;
    }

    public void resume(Transaction tx)
        throws InvalidTransactionException, IllegalStateException,
        SystemException {
        /** XXX Throw an exception ??? The process should happen in the caller. XXX **/
    }

    public void removeTransaction(Transaction tx) {}

    public int getOrder() {
        return 1;
    }

    public void setTransactionManager(JavaEETransactionManager tm) {
        this.tm = (JavaEETransactionManagerSimplified)tm;
        _logger = ((JavaEETransactionManagerSimplified)tm).getLogger();
    }

    public TransactionInternal startJTSTx(JavaEETransaction t, boolean isAssociatedTimeout) 
            throws RollbackException, IllegalStateException, SystemException {
        throw new UnsupportedOperationException("startJTSTx");
    }

    public boolean supportsXAResource() {
        return false;
    }

    public void initRecovery(boolean force) {
        // No-op. Always called on server startup
    }

    public void recover(XAResource[] resourceList) {
        throw new UnsupportedOperationException("recover");
    }

    public XATerminator getXATerminator() {
        throw new UnsupportedOperationException("getXATerminator");
    }

    public void release(Xid xid) throws WorkException {
        throw new UnsupportedOperationException("release");
    }

    public void recreate(Xid xid, long timeout) throws WorkException {
        throw new UnsupportedOperationException("recreate");
    }

    public boolean recoverIncompleteTx(boolean delegated, String logPath, 
            XAResource[] xaresArray) throws Exception {
        throw new UnsupportedOperationException("recoverIncompleteTx");
    }


    public XAResourceWrapper getXAResourceWrapper(String clName) {
        return null;
    }

    public void handlePropertyUpdate(String name, Object value) {}

    public Lock getReadLock() {
        return readLock;
    }

    public boolean isWriteLocked() {
        return (writeLock.availablePermits() == 0);
    }

    public void acquireWriteLock() {
        try {
            writeLock.acquire();
        } catch(InterruptedException ie) {
            _logger.log(Level.FINE,"Error in acquireReadLock",ie);
        }
    }

    public void releaseWriteLock() {
        writeLock.release();
    }

    /**
     * Return false as this delegate doesn't support tx interop.
     */
    public boolean isNullTransaction() {
        return false;
    }

    public TransactionAdminBean getTransactionAdminBean(Transaction tran) 
            throws javax.transaction.SystemException {
        return ((JavaEETransactionManagerSimplified)tm).getTransactionAdminBean(tran);
    }

    /** {@inheritDoc}
    */
    public String getTxLogLocation() {
        throw new UnsupportedOperationException("getTxLogLocation");
    }

    /** {@inheritDoc}
    */
    public void registerRecoveryResourceHandler(XAResource xaResource) {
        throw new UnsupportedOperationException("registerRecoveryResourceHandler");
    }
}