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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2013 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
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// Portions Copyright [2022-2024] Payara Foundation and/or affiliates

package org.glassfish.concurrent.runtime;

import com.sun.enterprise.transaction.api.JavaEETransactionManager;
import org.glassfish.concurro.spi.TransactionHandle;
import org.glassfish.concurro.spi.TransactionSetupProvider;

import jakarta.enterprise.concurrent.ManagedTask;
import jakarta.transaction.InvalidTransactionException;
import jakarta.transaction.SystemException;
import jakarta.transaction.Transaction;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;

public class TransactionSetupProviderImpl implements TransactionSetupProvider {

    private transient JavaEETransactionManager transactionManager;

    static final long serialVersionUID = -856400645253308289L;
    private final boolean keepTransactionUnchanged;
    private final boolean clearTransaction;

    public TransactionSetupProviderImpl(JavaEETransactionManager transactionManager, boolean keepTransactionUnchanged, boolean clearTransaction) {
        this.transactionManager = transactionManager;
        this.keepTransactionUnchanged = keepTransactionUnchanged;
        this.clearTransaction = clearTransaction;
    }

    @Override
    public TransactionHandle beforeProxyMethod(String transactionExecutionProperty) {
        // suspend current transaction if not using transaction of execution thread
        boolean doSuspend = !ManagedTask.USE_TRANSACTION_OF_EXECUTION_THREAD.equals(transactionExecutionProperty);
        if (keepTransactionUnchanged) {
            doSuspend = false;
        }
        if (clearTransaction) {
            doSuspend = true;
        }
        if (doSuspend) {
            try {
                Transaction suspendedTxn = transactionManager.suspend();
                return new TransactionHandleImpl(suspendedTxn);
            } catch (SystemException e) {
                Logger.getLogger(this.getClass().getName()).log(Level.SEVERE, e.toString());
            }
        }
        return null;
    }

    @Override
    public void afterProxyMethod(TransactionHandle handle, String transactionExecutionProperty) {
        // resume transaction if any
        if (handle instanceof TransactionHandleImpl) {
            Transaction suspendedTxn = ((TransactionHandleImpl)handle).getTransaction();
            if (suspendedTxn != null) {
                try {
                    transactionManager.resume(suspendedTxn);
                } catch (InvalidTransactionException | SystemException e) {
                    Logger.getLogger(this.getClass().getName()).log(Level.SEVERE, e.toString());
                }
            }
        }
    }

    private void writeObject(java.io.ObjectOutputStream out) throws IOException {
        out.defaultWriteObject();
    }

    private void readObject(java.io.ObjectInputStream in) throws IOException, ClassNotFoundException {
        in.defaultReadObject();
        // re-initialize these fields
        ConcurrentRuntime concurrentRuntime = ConcurrentRuntime.getRuntime();
        transactionManager = concurrentRuntime.getTransactionManager();
    }

}