com.sun.ejb.containers.SimpleEjbResourceHandlerImpl Maven / Gradle / Ivy

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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
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 * 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:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
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// Portions Copyright [2016-2021] [Payara Foundation]
package com.sun.ejb.containers;

import org.glassfish.api.invocation.ResourceHandler;

import jakarta.transaction.Synchronization;
import jakarta.transaction.Transaction;
import jakarta.transaction.TransactionManager;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Level;
import jakarta.transaction.Status;

/*
 //This class was originally an inner class of AbstractSingletonContainer. I have moved this to a top level
 //  class as it is now used by EjbInvocation.clone() method also.
 */
public class SimpleEjbResourceHandlerImpl
        implements ResourceHandler, Synchronization {

    private static Map _resourceHandlers
            = new ConcurrentHashMap();

    private List l = null;
    private Transaction tx = null;
    private TransactionManager tm = null;

    private SimpleEjbResourceHandlerImpl(TransactionManager tm) {
        this.tm = tm;
        checkTransaction();
    }

    public static ResourceHandler createResourceHandler(TransactionManager tm) {
        return new SimpleEjbResourceHandlerImpl(tm);
    }

    public static ResourceHandler getResourceHandler(TransactionManager tm) {
        SimpleEjbResourceHandlerImpl rh = null;
        try {
            Transaction tx = tm.getTransaction();
            if (tx != null) {
                rh = _resourceHandlers.get(tx);
            }
        } catch (Exception e) {
            BaseContainer._logger.log(Level.WARNING, "Exception during Singleton ResourceHandler processing", e);
        }

        if (rh == null) {
            rh = new SimpleEjbResourceHandlerImpl(tm);
        }

        return rh;
    }

    public List getResourceList() {
        if (tx == null) {
            checkTransaction();
        }

        if (l == null) {
            l = new ArrayList();
        }
        return l;
    }

    public void beforeCompletion() {
        // do nothing
    }

    public void afterCompletion(int status) {
        if (tx != null) {
            _resourceHandlers.remove(tx);
            tx = null;
        }
    }

    private void checkTransaction() {
        try {
            tx = tm.getTransaction();
            if (tx != null) {
                // check whether the transaction is in a suitable state to register for synchronisation
                if (tx.getStatus() == Status.STATUS_ACTIVE || tx.getStatus() == Status.STATUS_MARKED_ROLLBACK) {
                    tx.registerSynchronization(this);
                    _resourceHandlers.put(tx, this);
                } else {

                    tx = null;
                }
            }
        } catch (Exception e) {
            tx = null;
            BaseContainer._logger.log(Level.WARNING, "Exception during Singleton ResourceHandler processing", e);
        }
    }

}