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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2008-2013 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.
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package com.sun.enterprise.container.common.impl;

import com.sun.enterprise.container.common.spi.util.CallFlowAgent;
import com.sun.enterprise.container.common.spi.util.ComponentEnvManager;
import com.sun.enterprise.container.common.spi.util.ContainerUtil;
import org.glassfish.api.invocation.InvocationManager;
import javax.inject.Inject;
import org.jvnet.hk2.annotations.Service;
import org.glassfish.hk2.api.PreDestroy;

import java.util.Timer;

@Service
public class ContainerUtilImpl
    implements ContainerUtil, PreDestroy {

    @Inject
    private InvocationManager invMgr;

    @Inject
    private ComponentEnvManager compEnvMgr;

    @Inject
    private CallFlowAgent callFlowAgent;
    
    private static Timer _timer = new Timer("container-util",true);

    private static ContainerUtil _util;

    public ContainerUtilImpl() {
        _initializeContainerUtilImpl(this);
    }

    private static void _initializeContainerUtilImpl(ContainerUtilImpl me) {
        _util = me;
    }

    public static ContainerUtil getContainerUtil() {
        return _util;
    }

    public InvocationManager getInvocationManager() {
        return invMgr;
    }

    public ComponentEnvManager getComponentEnvManager() {
        return compEnvMgr;
    }

    public CallFlowAgent getCallFlowAgent() {
        return callFlowAgent;
    }
    public Timer getTimer() {
        return _timer;
    }

    public void scheduleTask(Runnable runnable) {
        //TODO: Get hold of a worker threadpool and run this runnable
        //TODO: Should we take the ContextClassLoader as parameter
    }

    /**
     * The component is about to be removed from commission
     */
    public void preDestroy() {
        _timer.cancel();
    }
}