/*

* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  locationfunctionserver

 *

*/

#ifndef LOCATIONFUNCTIONSERVER_H

#define LOCATIONFUNCTIONSERVER_H

#include "monitor.h"

#include "functionserver.h"

#include "legacyeventserverwrapper.h"

namespace java

{

namespace location

{

/**

 * If we have to execute some operation that essentially

 * needs ActiveScheduler, then we use this LocationFunctionServer.

 *

 * We must however be careful not to make callbacks through FunctionServer.

 * Reason: If in callback, app calls another method that needs FunctionServer

 * to execute, we enter a deadlock.

 */

class LocationFunctionServer: public java::util::FunctionServer,

        public LegacyEventServerWrapper

{

public:

    //Making these inline as it has nothing more to implement.

    //If implementation grows, then we write separate cpp

    LocationFunctionServer(JNIEnv& env, jobject peer) :

            java::util::FunctionServer("JavaLocationFunctionServer"), mVmAttached(

                false)

    {

        JELOG2(EJavaLocation);

        //Creates a new thread and starts active scheduler

        //This results in call to doServerSideInit()

        createServerToNewThread();

        attachToVm(env, peer);

        mVmAttached = true;

        iServer = reinterpret_cast<java::util::FunctionServer*>(this);

    }

    LocationFunctionServer() :

            java::util::FunctionServer("JavaLocationFunctionServer"), mVmAttached(

                false)

    {

        JELOG2(EJavaLocation);

        //Creates a new thread and starts active scheduler

        //This results in call to doServerSideInit()

        createServerToNewThread();

        iServer = reinterpret_cast<java::util::FunctionServer*>(this);

    }

    /**

     * If we are making any callback in FunctionServer thread context, then we

     * must query for the Thread specific JNI Environment variable.

     * This function that gives JNI environment variable specific to

     * Location Function Server thread.

     */

    JNIEnv* getValidJniEnv()

    {

        JELOG2(EJavaLocation);

        return mJniEnv;

    }

    jobject getPeer()

    {

        return mJavaPeerObject;

    }

    ~LocationFunctionServer()

    {

        JELOG2(EJavaLocation);

        if (mVmAttached)

        {

            detachFromVm();

        }

        stopServer();

    }

    java::util::FunctionServer* getFunctionServer() const

    {

        JELOG2(EJavaLocation);

        return iServer;

    }

private:

    void doServerSideInit()

    {

        JELOG2(EJavaLocation);

        FunctionServer::doServerSideInit();

    }

    void vmDetached()

    {

        JELOG2(EJavaLocation);

        FunctionServer::vmDetached();

    }

private:

    bool mVmAttached;

    java::util::FunctionServer* iServer;

};

} //end namespace location

} //end namespace java

#endif // LOCATIONFUNCTIONSERVER_H