/*

* Copyright (c) 2002-2007 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:  Class for reading data from Java SourceStream to native side

*

*/

#ifndef CMMADATASOURCESTREAM_H

#define CMMADATASOURCESTREAM_H

#include "cmmasourcestream.h"

class CMMADataSourceStreamEvent;

class MMMASourceStreamListener;

class MMMAEventPoster;

class CMMAStreamRequest;

// CONSTANTS

//  CLASS DECLARATION

/**

*   Class for reading data from Java SourceStream to native side

*

*/

NONSHARABLE_CLASS(CMMADataSourceStream): public CMMASourceStream

{

public:     // Constructors and destructors

    /**

     * Object creation. Static method.

     *

     * @param aJNIEnv           handle to used jni environment

     * @param aEventPoster      handle to event poster

     * @param aJavaSourceStream handle to java SourceStream object

     * @param aListener         Handle to source stream listener

     *

     * @return CMMADataSourceStream object

     */

    static CMMADataSourceStream* NewLC(JNIEnv* aJNIEnv,

    MMMAEventPoster* aEventPoster,

    jobject aJavaSourceStream,

    MMMASourceStreamListener* aListener,

    MMAFunctionServer* aEventSource);

    /**

     * Deletes owned objects

     */

    ~CMMADataSourceStream(); // Destructor

public: // New methods

    /**

     * Reads data from Java

     */

    void Read(CMMAStreamRequest* aRequest);

    /**

     * @return readed request

     */

    CMMAStreamRequest* Request();

public: // From CMMASourceStream

    /**

     * Overwrites CMMASourceStream's ResetData

     * so iData will not be NULL, does nothing

     */

    void ResetData();

protected:  // Constructors and destructors

    /**

     * Set variables

     * @param aEventPoster handle to event poster

     * @param aListener    handle to source stream listener

     */

    CMMADataSourceStream(MMMAEventPoster* aEventPoster,

                         MMMASourceStreamListener* aListener);

    /**

     * 2nd phase constructor

     *

     * @param aJNIEnv           used jni environment

     * @param aJavaSourceStream handle to java source stream object

     */

    void ConstructL(JNIEnv* aJNIEnv, MMAFunctionServer* aEventSource,jobject aJavaSourceStream);

protected:  // From CMMASourceStream

    void WriteL(const TUint8* aData,

                TInt aLength, TInt aState);

protected:

    // not owned request

    CMMAStreamRequest* iRequest;

};

#endif // CMMADATASOURCESTREAM_H