javacommons/utils/src/javajniutils.cpp
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/*
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include "logger.h"
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#include "javacommonutils.h"
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#include "javajniutils.h"
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using namespace java::util;
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OS_EXPORT
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std::wstring JniUtils::jstringToWstring(JNIEnv* env, const jstring& jStr)
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{
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    jboolean iscopy;
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#ifdef __SYMBIAN32__
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    // In Symbian the size of jchar == the size of wchar_t
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    const jchar* jChr = env->GetStringChars(jStr, &iscopy);
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    std::wstring wStr((wchar_t *)jChr, env->GetStringLength(jStr));
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    env->ReleaseStringChars(jStr, jChr);
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#else
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    // The size of jchar != the size of wchar_t
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    const char* utf8(env->GetStringUTFChars(jStr, &iscopy));
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    std::wstring wStr = JavaCommonUtils::utf8ToWstring(utf8);
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    env->ReleaseStringUTFChars(jStr, utf8);
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#endif
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    return wStr;
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}
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OS_EXPORT
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jstring JniUtils::wstringToJstring(JNIEnv* env, const std::wstring& wStr)
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{
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#ifdef __SYMBIAN32__
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    // In Symbian the size of jchar == the size of wchar_t
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    jstring jStr = env->NewString(
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                       reinterpret_cast<const jchar*>(wStr.c_str()), wStr.length());
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#else
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    // The size of jchar != the size of wchar_t
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    const char* utf8 = JavaCommonUtils::wstringToUtf8(wStr);
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    jstring jStr = env->NewStringUTF(utf8);
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    delete[] utf8;
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#endif
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    return jStr;
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}
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OS_EXPORT
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void JniUtils::throwNewException(JNIEnv* aEnv,const std::string& aClassNameOfException,
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                                 const std::string& aExceptionText)
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{
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    jclass cls = aEnv->FindClass(aClassNameOfException.c_str());
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    // if cls is NULL, an exception has already been thrown
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    if (cls != 0)
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    {
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        aEnv->ThrowNew(cls, aExceptionText.c_str());
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    }
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    // free the local ref
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    aEnv->DeleteLocalRef(cls);
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}
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