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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
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 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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package com.sun.ejb.base.container;

import java.util.Timer;
import java.util.logging.*;

import com.sun.logging.*;

import com.sun.corba.ee.spi.orbutil.threadpool.Work;
import com.sun.corba.ee.spi.orbutil.threadpool.ThreadPoolManager;
import com.sun.corba.ee.spi.orbutil.threadpool.ThreadPool;
import com.sun.enterprise.util.S1ASThreadPoolManager;
import com.sun.enterprise.util.ORBManager;

import com.sun.ejb.spi.io.J2EEObjectStreamFactory;

public class ContainerServiceImpl
    implements com.sun.ejb.spi.container.ContainerService
{

    private static String J2EE_OBJECT_FACTORY_NAME =
        "com.sun.ejb.base.io.J2EEObjectStreamFactoryImpl";

    private static final Logger _ejbLogger =
        LogDomains.getLogger(LogDomains.EJB_LOGGER);

    private Timer                   timer;
    private J2EEObjectStreamFactory j2eeObjectStreamFactory;

    public ContainerServiceImpl() {
    }
    
    public void initializeService() {
        timer = new Timer(true);

        try {
            Class clazz = Class.forName(J2EE_OBJECT_FACTORY_NAME);
            j2eeObjectStreamFactory = (J2EEObjectStreamFactory) clazz.newInstance();
            _ejbLogger.log(Level.FINE, "Instantiated J2EEObjectStreamFactory");
        } catch (Exception ex) {
            _ejbLogger.log(Level.WARNING, "Couldn't instantiate "
                    + "J2EEObjectstreamFactory", ex);
        }
    }

    public Timer getTimer() {
        return timer;
    }

    public J2EEObjectStreamFactory getJ2EEObjectStreamFactory() {
        return j2eeObjectStreamFactory;
    }

    public void scheduleWork(ClassLoader classLoader, Runnable target) {
        ThreadPoolWork work = new ThreadPoolWork(classLoader, target);

        try {
            ThreadPoolManager threadpoolMgr =
                S1ASThreadPoolManager.getThreadPoolManager();
            ThreadPool threadpool = threadpoolMgr.getDefaultThreadPool();
            threadpool.getAnyWorkQueue().addWork(work);
        } catch (Throwable th) {
            String errMsg =  "Error while adding work to orb threadpool. "
                + "Hence doing it in current thread";
            _ejbLogger.log(Level.WARNING, errMsg, th);
            work.doWork();
        }
    }

    private static class ThreadPoolWork
        implements com.sun.corba.ee.spi.orbutil.threadpool.Work
    {
        private final ClassLoader classLoader;
        private final Runnable    target;
        private long              enqueTime;

        public ThreadPoolWork(ClassLoader classLoader, Runnable target) {
            this.classLoader = classLoader;
            this.target = target;
        }

        public void setEnqueueTime(long timeInMillis) {
            enqueTime = timeInMillis;
        }

        public long getEnqueueTime() {
            return enqueTime;
        }
	
        public void doWork() {
            final ClassLoader prevClassLoader = 
                Thread.currentThread().getContextClassLoader();

            try {
                if(System.getSecurityManager() == null) {
                    Thread.currentThread().setContextClassLoader(classLoader);
                } else {
                    java.security.AccessController.doPrivileged(
                            new java.security.PrivilegedAction() {
                        public java.lang.Object run() {
                            Thread.currentThread().setContextClassLoader(
                                    classLoader);
                            return null;
                        }
                    }
                    );
                }

                target.run();

            } catch (Throwable throwable) {
                _ejbLogger.log(Level.FINE, "Error during execution", throwable);
            } finally {
                if(System.getSecurityManager() == null) {
                    Thread.currentThread().setContextClassLoader(prevClassLoader);
                } else {
                    java.security.AccessController.doPrivileged(
                            new java.security.PrivilegedAction() {
                        public java.lang.Object run() {
                            Thread.currentThread().setContextClassLoader(
                                    prevClassLoader);
                            return null;
                        }
                    }
                    );
                }
            }
        }
        
        public String getName() {
            return "ThreadPoolWork";
        }

    } // end ThreadPoolWork


    public void shutdown() {
        timer = null;
    }

}