javamanager/javainstaller/installer/src.s60/utils/filewriter.cpp
branchRCL_3
changeset 14 04becd199f91
child 24 6c158198356e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javamanager/javainstaller/installer/src.s60/utils/filewriter.cpp	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,187 @@
+/*
+* Copyright (c) 2010 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:  The JNI code for Java Installer class FileWriter.
+*
+*/
+
+#include "com_nokia_mj_impl_installer_utils_FileWriter.h"
+#include "javacommonutils.h"
+#include "javasymbianoslayer.h" // for CleanupResetAndDestroyPushL
+#include "logger.h"
+#include "s60commonutils.h"
+
+#include <caf/caf.h>
+#include <caf/supplier.h>
+#ifdef RD_JAVA_S60_RELEASE_5_0
+#include <middleware/Oma2Agent.h>
+#else
+#include <mw/Oma2Agent.h>
+#endif // RD_JAVA_S60_RELEASE_5_0
+
+// NAMESPACE DECLARATION
+using namespace java;
+using namespace java::util;
+using namespace ContentAccess;
+
+IMPORT_C HBufC* CreateHBufCFromJavaStringLC(JNIEnv* aEnv, jstring aString);
+
+/**
+ * See JNI method __1create.
+ * This is an internal wrapper method for handling Leaves.
+ */
+jint CreateL(
+    JNIEnv *aEnv, jclass, jstring aMimeType,
+    jstring aOutputPath, jstring aSuggestedFilename)
+{
+    // Convert java strings to Symbian descriptors.
+    HBufC *mimeType = CreateHBufCFromJavaStringLC(aEnv, aMimeType);
+    HBufC *outputPath = CreateHBufCFromJavaStringLC(aEnv, aOutputPath);
+    HBufC *suggestedFilename = CreateHBufCFromJavaStringLC(aEnv, aSuggestedFilename);
+
+    // Create the content access agent.
+    CSupplier* supplier = CSupplier::NewLC();
+    CMetaDataArray* metaData = CMetaDataArray::NewLC();
+
+    // Tell the agent which MIME type to use for the encrypted data.
+    _LIT(KContentType, "Content-type");
+    metaData->AddL(KContentType, *mimeType);
+    supplier->SetOutputDirectoryL(*outputPath);
+
+    // The KOmaImportContentType is a OMA DRM agent specific MIME type which
+    // indicates that plain content is to be encrypted
+    CImportFile* file = supplier->ImportFileL(
+                            KOmaImportContentType, *metaData, *suggestedFilename);
+
+    CleanupStack::PopAndDestroy(metaData);
+    CleanupStack::PopAndDestroy(supplier);
+    CleanupStack::PopAndDestroy(suggestedFilename);
+    CleanupStack::PopAndDestroy(outputPath);
+    CleanupStack::PopAndDestroy(mimeType);
+
+    // Return handle to CImportFile. Utilize the fact that in Symbian
+    // all pointer addresses are MOD 4 so the last 2 bits are 0
+    // and can be shifted out. This way the returned handle is
+    // always positive whereas Symbian error codes are always negative.
+    return reinterpret_cast<TUint>(file)>>2;
+}
+
+/*
+ * Class:     com_nokia_mj_impl_installer_utils_FileWriter
+ * Method:    _create
+ * Signature: (Ljava/lang/String;Ljava/lang/String;)I
+ */
+JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_FileWriter__1create
+(JNIEnv *aEnv, jclass aClass, jstring aMimeType, jstring aOutputPath, jstring aSuggestedFilename)
+{
+    TInt result = KErrNone;
+    TRAPD(err, result = CreateL(
+                            aEnv, aClass, aMimeType, aOutputPath, aSuggestedFilename));
+    if (KErrNone == err)
+    {
+        err = result;
+    }
+    return err;
+}
+
+/*
+ * Class:     com_nokia_mj_impl_installer_utils_FileWriter
+ * Method:    _write
+ * Signature: (I[BII)I
+ */
+JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_FileWriter__1write
+(JNIEnv *aEnv, jclass, jint aHandle, jbyteArray aBytes, jint aOffset, jint aLength)
+{
+    // Convert handle to pointer.
+    CImportFile *file = reinterpret_cast<CImportFile*>(aHandle<<2);
+
+    const TInt KWriteBufferSize = 2048;
+    TBuf8<KWriteBufferSize> writeBuffer;
+    TInt err = KErrNone;
+    TInt index = aOffset;
+    TInt limit = aOffset + aLength;
+    TInt length = KWriteBufferSize;
+    while (index < limit && KErrNone == err)
+    {
+        if (limit - index < KWriteBufferSize)
+        {
+            length = limit - index;
+        }
+        // Convert bytes from jbyteArray to TDesC8.
+        (void)S60CommonUtils::CopyToNative(
+            *aEnv, aBytes, index, length, writeBuffer);
+        // Write data.
+        err = file->WriteData(writeBuffer);
+        index += length;
+    }
+
+    return err;
+}
+
+/**
+ * See JNI method __1close.
+ * This is an internal wrapper method for handling Leaves.
+ */
+jint CloseL(JNIEnv *aEnv, jclass aClass, jint aHandle, jobject aOutputFilename)
+{
+    // Convert handle to pointer.
+    CImportFile *file = reinterpret_cast<CImportFile*>(aHandle<<2);
+
+    // Complete writing and get output filename from the agent.
+    TInt err = file->WriteDataComplete();
+    // Initialize output filename to aOutputFilename parameter.
+    if (KErrNone == err)
+    {
+        // Get class handle to StringBuffer
+        aClass = aEnv->GetObjectClass(aOutputFilename);
+        // Get method ID to StringBuffer StringBuffer.append(String)
+        jmethodID methodID = aEnv->GetMethodID(
+                                 aClass, "append", "(Ljava/lang/String;)Ljava/lang/StringBuffer;");
+        if (0 == methodID)
+        {
+            ELOG(EJavaInstaller,
+                 "FileWriter__1close: StringBuffer.append not found");
+            err = KErrGeneral;
+        }
+        else
+        {
+            CSupplierOutputFile &output = file->OutputFileL(0);
+            TPtrC outputFilename = output.FileName();
+            // Create new Java String.
+            jstring jOutputFilename =
+                aEnv->NewString(outputFilename.Ptr(), outputFilename.Length());
+            aEnv->CallObjectMethod(aOutputFilename, methodID, jOutputFilename);
+        }
+    }
+
+    // Delete the CImportFile instance which is no longer used.
+    delete file;
+    return err;
+}
+
+/*
+ * Class:     com_nokia_mj_impl_installer_utils_FileWriter
+ * Method:    _close
+ * Signature: (ILjava/lang/StringBuffer;)I
+ */
+JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_FileWriter__1close
+(JNIEnv *aEnv, jclass aClass, jint aHandle, jobject aOutputFilename)
+{
+    TInt result = KErrNone;
+    TRAPD(err, result = CloseL(aEnv, aClass, aHandle, aOutputFilename));
+    if (KErrNone == err)
+    {
+        err = result;
+    }
+    return err;
+}