1 /*

     2 * Copyright (c) 2009 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: 

    15 *

    16 */

    17 #include "mmapiutils.h"

    18 #include "s60commonutils.h"

    19 using namespace java::util;

    20     

    21 enum TJavaArrayPanic

    22 {

    23     EBadOffsetIntoJavaArray,

    24     EWritingOverEndOfJavaArray,

    25     EBadOffsetIntoJavaArrayForRead,

    26     EReadingOverEndOfJavaArray,

    27 };

    28 

    29 

    30 /**

    31  * Copies data from the native to the Java array.

    32  * @return The number of bytes copied.

    33  */

    34 TInt MMAPIUtils::CopyToJava(JNIEnv& aJni, const TDesC8& aNativeBuffer,

    35                                      jbyteArray aJavaBuffer, TInt aOffset, TInt aLength)

    36 {

    37     __ASSERT_DEBUG(aOffset <= aJni.GetArrayLength(aJavaBuffer),

    38                    User::Panic(_L("ArrayUtils"), EBadOffsetIntoJavaArray));

    39     __ASSERT_DEBUG(aLength <= aJni.GetArrayLength(aJavaBuffer) - aOffset,

    40                    User::Panic(_L("ArrayUtils"), EWritingOverEndOfJavaArray));

    41 

    42     TInt nativeBufferLength = aNativeBuffer.Length();

    43     TInt length = (nativeBufferLength < aLength) ? nativeBufferLength : aLength;

    44     TUint8* nativeBufferPtr = const_cast<TUint8*>(aNativeBuffer.Ptr());

    45     jbyte* jNativeBufferPtr = reinterpret_cast<jbyte*>(nativeBufferPtr);

    46     aJni.SetByteArrayRegion(aJavaBuffer, aOffset, length, jNativeBufferPtr);

    47     return length;

    48 }

    49 

    50 jobjectArray MMAPIUtils::CopyToNewJavaStringArrayL(JNIEnv& aJni, const CDesCArray& aNativeArray)

    51 {

    52     jclass stringClass = aJni.FindClass("java/lang/String");

    53     User::LeaveIfNull(stringClass);

    54     //

    55     jobjectArray result = aJni.NewObjectArray(aNativeArray.Count(), stringClass, NULL);

    56     if (result != NULL)

    57     {

    58         TPtrC item;

    59         for (int i=0; i<aNativeArray.Count(); ++i)

    60         {

    61             item.Set(aNativeArray[i]);

    62             AddToJavaStringArrayL(aJni, result, i, item);

    63         }

    64     }

    65     return result;

    66 }

    67 

    68 void MMAPIUtils::AddToJavaStringArrayL(JNIEnv& aJni, jobjectArray& aContainer, TInt aPosition, const TDesC& aString)

    69 {

    70     jstring javaString = S60CommonUtils::NativeToJavaString(aJni, aString);

    71     User::LeaveIfNull(javaString);

    72     //

    73     aJni.SetObjectArrayElement(aContainer, aPosition, javaString);

    74     aJni.DeleteLocalRef(javaString);

    75 }