--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/javalegacyutils/src/ArrayUtils.cpp	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,118 @@
+/*
+* Copyright (c) 2002-2004 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:
+*
+*/
+
+
+#include "jutils.h"
+
+
+
+enum TJavaArrayPanic
+{
+    EBadOffsetIntoJavaArray,
+    EWritingOverEndOfJavaArray,
+    EBadOffsetIntoJavaArrayForRead,
+    EReadingOverEndOfJavaArray,
+};
+
+
+
+/**
+ * Accesses the Java array and copies its data into the native descriptor.
+ * @param aJni The JNI environment.
+ * @param aJavaBuffer The Java buffer to copy data from.
+ * @param aOffset Start of data in Java buffer to copy. This is assumed to be valid.
+ * @param aLength Amount of data to copy. This is assumed to be valid.
+ * @param aNativeBuffer Target for data. This is assumed to be long enough.
+ * @returns An error code.
+ */
+TInt ArrayUtils::CopyToNative(JNIEnv& aJni, jbyteArray aJavaBuffer,
+                              TInt aOffset, TInt aLength, TDes8& aNativeBuffer)
+{
+    __ASSERT_DEBUG(aOffset <= aJni.GetArrayLength(aJavaBuffer),
+                   User::Panic(_L("ArrayUtils"), EBadOffsetIntoJavaArrayForRead));
+    __ASSERT_DEBUG(aLength <= aJni.GetArrayLength(aJavaBuffer) - aOffset,
+                   User::Panic(_L("ArrayUtils"), EReadingOverEndOfJavaArray));
+
+    aNativeBuffer.SetLength(aLength);
+    TUint8* nativeBufferPtr = const_cast<TUint8*>(aNativeBuffer.Ptr());
+    jbyte* jNativeBufferPtr = reinterpret_cast<jbyte*>(nativeBufferPtr);
+    aJni.GetByteArrayRegion(aJavaBuffer, aOffset, aLength, jNativeBufferPtr);
+    return KErrNone;
+}
+
+
+
+/**
+ * Copies data from the native to the Java array.
+ * @return The number of bytes copied.
+ */
+EXPORT_C TInt ArrayUtils::CopyToJava(JNIEnv& aJni, const TDesC8& aNativeBuffer,
+                                     jbyteArray aJavaBuffer, TInt aOffset, TInt aLength)
+{
+    __ASSERT_DEBUG(aOffset <= aJni.GetArrayLength(aJavaBuffer),
+                   User::Panic(_L("ArrayUtils"), EBadOffsetIntoJavaArray));
+    __ASSERT_DEBUG(aLength <= aJni.GetArrayLength(aJavaBuffer) - aOffset,
+                   User::Panic(_L("ArrayUtils"), EWritingOverEndOfJavaArray));
+
+    TInt nativeBufferLength = aNativeBuffer.Length();
+    TInt length = (nativeBufferLength < aLength) ? nativeBufferLength : aLength;
+    TUint8* nativeBufferPtr = const_cast<TUint8*>(aNativeBuffer.Ptr());
+    jbyte* jNativeBufferPtr = reinterpret_cast<jbyte*>(nativeBufferPtr);
+    aJni.SetByteArrayRegion(aJavaBuffer, aOffset, length, jNativeBufferPtr);
+    return length;
+}
+
+
+
+/**
+ * Creates a Java array of strings from a native array of descriptors allocated
+ * on the heap.
+ * @param aJni The JNI environment.
+ * @param aNativeArray The array of descriptors.
+ * @return The newly created Java array of String objects, or NULL on error.
+ */
+jobjectArray ArrayUtils::CopyToNewJavaStringArray(JNIEnv& aJni,
+        const RPointerArray<HBufC>& aNativeArray)
+{
+    jclass stringClass = aJni.FindClass("java/lang/String");
+    if (stringClass == NULL)
+    {
+        return NULL;
+    }
+
+    TInt count = aNativeArray.Count();
+    jobjectArray result = aJni.NewObjectArray(count, stringClass, NULL);
+    if (result == NULL)
+    {
+        return NULL;
+    }
+
+    for (int ii = 0; ii< count; ii++)
+    {
+        jstring javaString = CreateJavaString(aJni, *aNativeArray[ii]);
+        if (javaString == NULL)
+        {
+            aJni.DeleteLocalRef(result);
+            return NULL;
+        }
+
+        aJni.SetObjectArrayElement(result, ii, javaString);
+        aJni.DeleteLocalRef(javaString);
+    }
+
+    return result;
+}