1 /*

     2 * Copyright (c) 2002-2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Class for reading data from Java SourceStream to native side

    15 *

    16 */

    17 

    18 

    19 #ifndef CMMADATASOURCESTREAM_H

    20 #define CMMADATASOURCESTREAM_H

    21 

    22 #include "cmmasourcestream.h"

    23 

    24 class CMMADataSourceStreamEvent;

    25 class MMMASourceStreamListener;

    26 class MMMAEventPoster;

    27 class CMMAStreamRequest;

    28 

    29 // CONSTANTS

    30 

    31 //  CLASS DECLARATION

    32 /**

    33 *   Class for reading data from Java SourceStream to native side

    34 *

    35 */

    36 NONSHARABLE_CLASS(CMMADataSourceStream): public CMMASourceStream

    37 {

    38 public:     // Constructors and destructors

    39     /**

    40      * Object creation. Static method.

    41      *

    42      * @param aJNIEnv           handle to used jni environment

    43      * @param aEventPoster      handle to event poster

    44      * @param aJavaSourceStream handle to java SourceStream object

    45      * @param aListener         Handle to source stream listener

    46      *

    47      * @return CMMADataSourceStream object

    48      */

    49     static CMMADataSourceStream* NewLC(JNIEnv* aJNIEnv,

    50     MMMAEventPoster* aEventPoster,

    51     jobject aJavaSourceStream,

    52     MMMASourceStreamListener* aListener,

    53     MMAFunctionServer* aEventSource);

    54 

    55     /**

    56      * Deletes owned objects

    57      */

    58     ~CMMADataSourceStream(); // Destructor

    59 

    60 public: // New methods

    61     /**

    62      * Reads data from Java

    63      */

    64     void Read(CMMAStreamRequest* aRequest);

    65 

    66     /**

    67      * @return readed request

    68      */

    69     CMMAStreamRequest* Request();

    70 

    71 public: // From CMMASourceStream

    72 

    73     /**

    74      * Overwrites CMMASourceStream's ResetData

    75      * so iData will not be NULL, does nothing

    76      */

    77     void ResetData();

    78 

    79 protected:  // Constructors and destructors

    80 

    81     /**

    82      * Set variables

    83      * @param aEventPoster handle to event poster

    84      * @param aListener    handle to source stream listener

    85      */

    86     CMMADataSourceStream(MMMAEventPoster* aEventPoster,

    87                          MMMASourceStreamListener* aListener);

    88 

    89     /**

    90      * 2nd phase constructor

    91      *

    92      * @param aJNIEnv           used jni environment

    93      * @param aJavaSourceStream handle to java source stream object

    94      */

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

    96 

    97 

    98 protected:  // From CMMASourceStream

    99 

   100     void WriteL(const TUint8* aData,

   101                 TInt aLength, TInt aState);

   102 

   103 protected:

   104     // not owned request

   105     CMMAStreamRequest* iRequest;

   106 };

   107 

   108 #endif // CMMADATASOURCESTREAM_H