javacommons/fileutils/src/filestreamhandlerjni.cpp
branchRCL_3
changeset 19 04becd199f91
child 78 71ad690e91f5
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javacommons/fileutils/src/filestreamhandlerjni.cpp	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,307 @@
+/*
+* Copyright (c) 2008 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:  JNI Layer for FileStreamHandler
+ *
+*/
+
+#include <errno.h>
+
+#include "logger.h"
+#include "jniarrayutils.h"
+#include "javajniutils.h"
+#include "javacommonutils.h"
+
+#include "fileextendedcommon.h"
+#include "nativefileiohandler.h"
+#include "com_nokia_mj_impl_fileutils_FileStreamHandler.h"
+
+using namespace std;
+using namespace java::util;
+using namespace java::fileutils;
+using namespace java::fileutility;
+
+/*
+ * Class:     com_nokia_mj_impl_fileutils_FileStreamHandler
+ * Method:    _available
+ * Signature: (I)J
+ */
+JNIEXPORT jlong JNICALL Java_com_nokia_mj_impl_fileutils_FileStreamHandler__1available
+(JNIEnv *, jobject, jint aHandle)
+{
+    try
+    {
+        NativeFileIOHandler* handler =
+            reinterpret_cast<NativeFileIOHandler*>(aHandle);
+        return handler->available();
+    }
+    catch (...)
+    {
+        return 0;
+    }
+}
+
+/*
+ * Class:     com_nokia_mj_impl_fileutils_FileStreamHandler
+ * Method:    _skip
+ * Signature: (IJ)J
+ */
+JNIEXPORT jlong JNICALL Java_com_nokia_mj_impl_fileutils_FileStreamHandler__1skip
+(JNIEnv *, jobject, jint aHandle, jlong aOffset)
+{
+    try
+    {
+        NativeFileIOHandler* handler =
+            reinterpret_cast<NativeFileIOHandler*>(aHandle);
+        return handler->skip(aOffset);
+    }
+    catch (...)
+    {
+        return 0;
+    }
+}
+
+/*
+ * Class:     com_nokia_mj_impl_fileutils_FileStreamHandler
+ * Method:    _stopReading
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_com_nokia_mj_impl_fileutils_FileStreamHandler__1stopReading
+(JNIEnv *, jobject, jint aHandle)
+{
+    NativeFileIOHandler* handler =
+        reinterpret_cast<NativeFileIOHandler*>(aHandle);
+    handler->stopReading();
+}
+
+/*
+ * Class:     com_nokia_mj_impl_fileutils_FileStreamHandler
+ * Method:    _stopWriting
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_com_nokia_mj_impl_fileutils_FileStreamHandler__1stopWriting
+(JNIEnv *, jobject, jint aHandle)
+{
+    NativeFileIOHandler* handler =
+        reinterpret_cast<NativeFileIOHandler*>(aHandle);
+    handler->stopWriting();
+}
+
+/*
+ * Class:     com_nokia_mj_impl_fileutils_FileStreamHandler
+ * Method:    _createNativePeer
+ * Signature: (Ljava/lang/String;)I
+ */
+JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_fileutils_FileStreamHandler__1createNativePeer
+(JNIEnv *aJni, jobject, jstring aName)
+{
+    std::wstring name = FileUtil::jstringToWstring(aJni, aName);
+    NativeFileIOHandler* handler = new NativeFileIOHandler(name);
+    return reinterpret_cast<jint>(handler);
+}
+
+/*
+ * Class:     com_nokia_mj_impl_fileutils_FileStreamHandler
+ * Method:    _readdata
+ * Signature: ([BII)I
+ */
+JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_fileutils_FileStreamHandler__1readData
+(JNIEnv *aJni, jobject, jint aHandle, jbyteArray aJavaBuffer, jint aOffset, jint aLength)
+{
+    char* buffer = new char[aLength + 1];
+    try
+    {
+        NativeFileIOHandler* handler =
+            reinterpret_cast<NativeFileIOHandler*>(aHandle);
+        int bytesRead = handler->readBytes(buffer, aLength);
+
+        if (bytesRead > 0)
+        {
+            JNIArrayUtils::CopyToJava(*aJni, buffer, bytesRead, aJavaBuffer,
+                                      aOffset, bytesRead);
+        }
+        delete[] buffer;
+        return bytesRead;
+    }
+    catch (int error)
+    {
+        WLOG1(EJavaFile, "FileStreamHandler: JNI: readData error : Error: %d",
+              error);
+        delete[] buffer;
+        JniUtils::throwNewException(aJni, "java/io/IOException", "Read failed.");
+        return 0;
+    }
+    catch (...)
+    {
+        ELOG(EJavaFile, "FileStreamHandler: JNI: readData: Unknown error.");
+        delete[] buffer;
+        JniUtils::throwNewException(aJni, "java/io/IOException", "Read failed.");
+        return 0;
+    }
+}
+
+/*
+ * Class:     com_nokia_mj_impl_fileutils_FileStreamHandler
+ * Method:    _writeData
+ * Signature: (I[BII)V
+ */
+JNIEXPORT void JNICALL Java_com_nokia_mj_impl_fileutils_FileStreamHandler__1writeData
+(JNIEnv *aJni, jobject, jint aHandle, jbyteArray aJavaBuffer, jint aOffset, jint aLength)
+{
+    char* writeBuffer = new char[aLength + 1];
+    try
+    {
+        NativeFileIOHandler* handler =
+            reinterpret_cast<NativeFileIOHandler*>(aHandle);
+        JNIArrayUtils::CopyToNative(*aJni, aJavaBuffer, aOffset, aLength,
+                                    writeBuffer);
+        handler->writeBytes(writeBuffer, aLength);
+        delete[] writeBuffer;
+    }
+    catch (int error)
+    {
+        WLOG1(EJavaFile, "FileStreamHandler: JNI: writeData error : Error: %d",
+              error);
+        delete[] writeBuffer;
+        JniUtils::throwNewException(aJni, "java/io/IOException",
+                                    "Write failed.");
+    }
+    catch (...)
+    {
+        ELOG(EJavaFile, "FileStreamHandler: JNI: writeData: Unknown error.");
+        delete[] writeBuffer;
+        JniUtils::throwNewException(aJni, "java/io/IOException",
+                                    "Write failed.");
+    }
+}
+
+/*
+ * Class:     com_nokia_mj_impl_fileutils_FileStreamHandler
+ * Method:    _closeFileStream
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_com_nokia_mj_impl_fileutils_FileStreamHandler__1closeFileStream
+(JNIEnv *, jobject, jint aHandle)
+{
+    try
+    {
+        NativeFileIOHandler* handler =
+            reinterpret_cast<NativeFileIOHandler*>(aHandle);
+        handler->closeFileToReopen();
+    }
+    catch (...)
+    {
+        ELOG(EJavaFile, "FileUtility: JNI: closeFileStream threw exception.");
+        //Nothing to do
+    }
+}
+
+/*
+ * Class:     com_nokia_mj_impl_fileutils_FileStreamHandler
+ * Method:    _openFileForReading
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_com_nokia_mj_impl_fileutils_FileStreamHandler__1openFileForReading
+(JNIEnv *aJni, jobject, jint aHandle)
+{
+    try
+    {
+        NativeFileIOHandler* handler =
+            reinterpret_cast<NativeFileIOHandler*>(aHandle);
+        handler->openForReading();
+    }
+    catch (int error)
+    {
+        WLOG1(EJavaFile, "FileStreamHandler: JNI: openForReading Error: %d",
+              error);
+        if ((EACCES == errno) || (EPERM == errno))
+        {
+            JniUtils::throwNewException(aJni, "java/lang/SecurityException",
+                                        "Permission denied");
+            return;
+        }
+        else
+        {
+            JniUtils::throwNewException(aJni, "java/io/IOException",
+                                        "Unable to open file for reading");
+        }
+    }
+    catch (...)
+    {
+        ELOG(EJavaFile,
+             "FileStreamHandler: JNI: openForReading: Unknown error caught");
+        JniUtils::throwNewException(aJni, "java/io/IOException",
+                                    "Unable to open file for reading");
+    }
+}
+
+/*
+ * Class:     com_nokia_mj_impl_fileutils_FileStreamHandler
+ * Method:    _openFileForWriting
+ * Signature: (IJ)V
+ */
+JNIEXPORT void JNICALL Java_com_nokia_mj_impl_fileutils_FileStreamHandler__1openFileForWriting
+(JNIEnv *aJni, jobject, jint aHandle, jlong aOffset)
+{
+    try
+    {
+        NativeFileIOHandler* handler =
+            reinterpret_cast<NativeFileIOHandler*>(aHandle);
+        handler->openForWriting(aOffset);
+    }
+    catch (int error)
+    {
+        WLOG1(EJavaFile, "FileStreamHandler: JNI: openForWriting Error: %d",
+              error);
+        if ((EACCES == errno) || (EPERM == errno))
+        {
+            JniUtils::throwNewException(aJni, "java/lang/SecurityException",
+                                        "Permission denied");
+            return;
+        }
+        else
+        {
+            JniUtils::throwNewException(aJni, "java/io/IOException",
+                                        "Unable to open file for writing");
+        }
+    }
+    catch (...)
+    {
+        ELOG(EJavaFile,
+             "FileStreamHandler: JNI: openForWriting: Unknown error caught");
+        JniUtils::throwNewException(aJni, "java/io/IOException",
+                                    "Unable to open file for Writing");
+    }
+}
+
+/*
+ * Class:     com_nokia_mj_impl_fileutils_FileStreamHandler
+ * Method:    _dispose
+ * Signature: (I)V
+ */
+JNIEXPORT void JNICALL Java_com_nokia_mj_impl_fileutils_FileStreamHandler__1dispose
+(JNIEnv *, jobject, jint aHandle)
+{
+    try
+    {
+        NativeFileIOHandler* handler =
+            reinterpret_cast<NativeFileIOHandler*>(aHandle);
+        delete handler;
+    }
+    catch (...)
+    {
+        ELOG(EJavaFile,
+             "FileUtility: JNI: dispose. Error deleting NativeFileUtils");
+        //Nothing to do
+    }
+}