1 #include "mmapiutils.h"

     2 #include "s60commonutils.h"

     3 using namespace java::util;

     4     

     5 enum TJavaArrayPanic

     6 {

     7     EBadOffsetIntoJavaArray,

     8     EWritingOverEndOfJavaArray,

     9     EBadOffsetIntoJavaArrayForRead,

    10     EReadingOverEndOfJavaArray,

    11 };

    12 

    13 

    14 /**

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

    16  * @return The number of bytes copied.

    17  */

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

    19                                      jbyteArray aJavaBuffer, TInt aOffset, TInt aLength)

    20 {

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

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

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

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

    25 

    26     TInt nativeBufferLength = aNativeBuffer.Length();

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

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

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

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

    31     return length;

    32 }

    33 

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

    35 {

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

    37     User::LeaveIfNull(stringClass);

    38     //

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

    40     if (result != NULL)

    41     {

    42         TPtrC item;

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

    44         {

    45             item.Set(aNativeArray[i]);

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

    47         }

    48     }

    49     return result;

    50 }

    51 

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

    53 {

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

    55     User::LeaveIfNull(javaString);

    56     //

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

    58     aJni.DeleteLocalRef(javaString);

    59 }