--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/srsf/sisrscontrollerplugin/src/asrplugindataloader.cpp Wed Sep 01 12:29:17 2010 +0100
@@ -0,0 +1,336 @@
+/*
+* Copyright (c) 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: Language package data file loader
+*
+*/
+
+
+// INCLUDE FILES
+#include "asrplugindataloader.h"
+#include "sysconfigprovider.h"
+
+
+#ifdef __SIND_AUTOCONF_LID
+#include <syslangutil.h>
+/* MSysConfigProvider is a wrapper for get syslangutil. This makes it easier to test without */
+/* dependency to the actual language configuration in the emulator environment. The test */
+/* class implements this interface. */
+class TDefaultConfig : public MSysConfigProvider {
+public:
+ TDefaultConfig() {};
+ ~TDefaultConfig() {};
+ TInt GetInstalledLanguages( CArrayFixFlat<TInt>*& aLanguages, RFs* aFileServerSession = NULL )
+ {
+ return SysLangUtil::GetInstalledLanguages(aLanguages, aFileServerSession);
+ };
+};
+#endif // __SIND_AUTOCONF_LID
+
+// Local constants
+
+_LIT( KZDriveLetter, "z" );
+
+
+#ifdef __SIND_AUTOCONF_LID
+const TUint32 KTtpAutoConfLidPackageType = 1;
+const TUint32 KTtpAutoConfLidPackageID = 1;
+const TInt KLidBufGranularity = 1000;
+#endif // __SIND_AUTOCONF_LID
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CDataLoaderLoader::CDataLoader
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CDataLoader::CDataLoader()
+ {
+ // Nothing
+ }
+
+// -----------------------------------------------------------------------------
+// CDataLoader::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CDataLoader::ConstructL( const TDesC& aPrefixOfFileName,
+ const TDesC& aSeparator,
+ const TDesC& aPostfixOfFileName,
+ MSysConfigProvider *aProvider )
+ {
+ iPrefixOfFileName = HBufC::NewL( aPrefixOfFileName.Length() );
+ (*iPrefixOfFileName) = aPrefixOfFileName;
+ iSeparator = HBufC::NewL( aSeparator.Length() );
+ (*iSeparator) = aSeparator;
+ iPostfixOfFileName = HBufC::NewL( aPostfixOfFileName.Length() );
+ (*iPostfixOfFileName) = aPostfixOfFileName;
+
+ iProvider = aProvider;
+
+ // Open file session
+ User::LeaveIfError( iFs.Connect() );
+ }
+
+// -----------------------------------------------------------------------------
+// CDataLoader::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CDataLoader* CDataLoader::NewL( const TDesC& aPrefixOfFileName,
+ const TDesC& aSeparator,
+ const TDesC& aPostfixOfFileName,
+ MSysConfigProvider *aProvider )
+ {
+ CDataLoader* self = new ( ELeave ) CDataLoader();
+
+ CleanupStack::PushL( self );
+ self->ConstructL( aPrefixOfFileName,
+ aSeparator,
+ aPostfixOfFileName,
+ aProvider);
+ CleanupStack::Pop( self );
+
+ return self;
+ }
+
+// -----------------------------------------------------------------------------
+// CDataLoader::~CDataLoader
+// Destructor.
+// -----------------------------------------------------------------------------
+//
+CDataLoader::~CDataLoader()
+ {
+ delete iPrefixOfFileName,
+ delete iSeparator,
+ delete iPostfixOfFileName;
+
+ iFs.Close();
+ }
+
+// -----------------------------------------------------------------------------
+// CDataLoader::PackageName
+// Construct filename for requested package
+// -----------------------------------------------------------------------------
+//
+void CDataLoader::PackageName (TFileName &aFileName, TUint32 aPackageType, TUint32 aPackageID)
+{
+ // Resolve the name of the file
+ // filename is <iPrefixOfFileName>_<PackageType>_<aPackageID><iPostfixOfFileName>
+
+ aFileName.Copy( iPrefixOfFileName->Des() ); // path/SRSF_
+ aFileName.AppendNumUC( aPackageType ); // path/SRSF_1
+ aFileName.Append( iSeparator->Des() ); // path/SRSF_1_
+ aFileName.AppendNumUC( aPackageID ); // path/SRSF_1_326
+ aFileName.Append( iPostfixOfFileName->Des() ); // path/SRSF_1_326.bin
+}
+
+#ifdef __SIND_AUTOCONF_LID
+// -----------------------------------------------------------------------------
+// CDataLoader::AppendLoadL
+// Load language package file to the end of buffer
+// -----------------------------------------------------------------------------
+//
+void CDataLoader::AppendLoadL( CBufBase *aBuffer,
+ TUint32 aPackageType,
+ TUint32 aPackageID )
+{
+ // Resolve filename
+ TFileName fileName;
+ PackageName (fileName, aPackageType, aPackageID);
+
+ // Load data
+ HBufC8* buffer = NULL;
+
+ TRAPD( err, buffer = DoLoadL( fileName, 0, KMaxTUint32 )); // IMPLICIT: LID packages are loaded completely
+ if( err == KErrNone && buffer )
+ {
+ CleanupStack::PushL( buffer ); // ResizeL may leave below
+
+ TInt prevSize = aBuffer->Size(); // size before resize
+ TInt newSize = aBuffer->Size() + buffer->Size(); // new size for lid data buffer
+
+ aBuffer->ResizeL( newSize ); // resize lid data buffer
+ aBuffer->Write( prevSize, *buffer ); // append data from read buffer
+
+ CleanupStack::PopAndDestroy(buffer); // buffer copied -> free
+ }
+}
+
+
+
+// -----------------------------------------------------------------------------
+// CDataLoader::LoadSysLangPackagesL
+// Load LID language data to a buffer according to installed system languages
+// -----------------------------------------------------------------------------
+//
+void CDataLoader::SysLangPackagesToBufferL( CBufBase *aBuffer )
+{
+ MSysConfigProvider *config = iProvider;
+ TDefaultConfig defaultProvider;
+ if (!config) config = &defaultProvider;
+
+ // Get installed languages
+ CArrayFixFlat<TInt>* languages( NULL );
+
+ //User::LeaveIfError (SysLangUtil::GetInstalledLanguages(languages, &iFs));
+ User::LeaveIfError (config->GetInstalledLanguages(languages, &iFs));
+ CleanupStack::PushL( languages ) ;
+
+ // Loop over installed languages
+ for ( TInt i = 0 ; i < languages->Count(); i++ )
+ {
+ AppendLoadL(aBuffer, KTtpAutoConfLidPackageType, languages->At(i));
+ }// next language
+
+ CleanupStack::PopAndDestroy( languages );
+}
+
+// -----------------------------------------------------------------------------
+// CDataLoader::ConstructLidDataL
+// Load LID language data to a buffer according to installed system languages
+// -----------------------------------------------------------------------------
+//
+HBufC8* CDataLoader::ConstructLidDataL()
+{
+ CBufBase* lidDataBuffer = CBufSeg::NewL( KLidBufGranularity ) ; // accumulates the binary data from lid model files
+ CleanupStack::PushL( lidDataBuffer ) ;
+
+ SysLangPackagesToBufferL (lidDataBuffer);
+
+ // Prepare returnable data
+ HBufC8* dataBuffer = NULL;
+
+ if( lidDataBuffer->Size() > 0 )
+ {
+ // If any data was loaded, create a buffer for it
+ dataBuffer = HBufC8::NewL( lidDataBuffer->Size() ); // create a returnable buffer
+ TPtr8 dataBufferPtr = dataBuffer->Des(); // get a modifiable pointer to it
+ lidDataBuffer->Read( 0, dataBufferPtr, lidDataBuffer->Size() ); // put the lid data into it
+ }
+
+ CleanupStack::PopAndDestroy( lidDataBuffer ) ;
+
+ return dataBuffer;
+}
+#endif // __SIND_AUTOCONF_LID
+
+
+// -----------------------------------------------------------------------------
+// CDataLoader::LoadData
+// Load language package file. It resolves the name of the language package
+// -----------------------------------------------------------------------------
+//
+HBufC8* CDataLoader::LoadData( TUint32 aPackageType,
+ TUint32 aPackageID,
+ TUint32 aStartPosition,
+ TUint32 aEndPosition ) {
+
+ TInt err;
+ HBufC8* buffer = NULL;
+
+#ifdef __SIND_AUTOCONF_LID
+ // If LID data is requested, construct it from installed LID binary files
+ // Otherwise run normal data loading
+
+ if( aPackageType == KTtpAutoConfLidPackageType &&
+ aPackageID == KTtpAutoConfLidPackageID )
+ {
+ TRAP( err, buffer = ConstructLidDataL() );
+ }
+#endif // __SIND_AUTOCONF_LID
+
+ if (!buffer) {
+ TFileName fileName;
+ PackageName (fileName, aPackageType, aPackageID);
+
+ // Load data
+ TRAP( err, buffer = DoLoadL( fileName, aStartPosition, aEndPosition ) );
+ }
+
+ if ( err == KErrNone )
+ {
+ return buffer;
+ }
+ else
+ {
+ return NULL;
+ }
+}
+
+
+
+// -----------------------------------------------------------------------------
+// CDataLoader::DoLoadL
+// Actual file loading function
+// -----------------------------------------------------------------------------
+//
+HBufC8* CDataLoader::DoLoadL( TFileName& aFileName,
+ TUint32 aStartPosition,
+ TUint32 aEndPosition )
+ {
+ TInt fileSize( 0 );
+ RFile dataFile;
+ TInt readLength;
+
+ // Open file
+ TInt err = dataFile.Open( iFs, aFileName, EFileRead);
+
+ if ( err != KErrNone )
+ {
+ aFileName.Replace(0,1,KZDriveLetter); // "z:\"
+ TInt err = dataFile.Open( iFs, aFileName, EFileRead);
+ if ( err != KErrNone )
+ {
+ return NULL;
+ }
+ }
+
+ CleanupClosePushL( dataFile );
+ // Try to resolve how much should be read
+ readLength = aEndPosition - aStartPosition;
+ User::LeaveIfError( dataFile.Size( fileSize ) );
+
+ if ( aEndPosition != KMaxTUint32 )
+ {
+ // Cannot read more than filesize
+ if ( ( readLength > fileSize ) || ( readLength < 0 ) )
+ {
+ readLength = fileSize;
+ }
+ }
+ else
+ {
+ readLength = fileSize;
+ }
+
+ // Seek the starting point
+ // Casting needed to convert from uint to int which is needed by Seek()
+ TInt startPosition = ( TInt ) aStartPosition;
+ dataFile.Seek( ESeekStart, startPosition );
+
+ // Reserve enough memory for the data
+ HBufC8* fileBuffer = HBufC8::NewLC( readLength );
+ TPtr8 bufferPtr( fileBuffer->Des() );
+
+ User::LeaveIfError( dataFile.Read( bufferPtr ) );
+
+ CleanupStack::Pop( fileBuffer );
+ CleanupStack::PopAndDestroy( &dataFile );
+ return fileBuffer;
+ }
+
+// End of File