ncdengine/provider/storage/src/ncdstorageimpl.cpp
changeset 0 ba25891c3a9e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/provider/storage/src/ncdstorageimpl.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,331 @@
+/*
+* Copyright (c) 2006 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 <f32file.h>
+#include <bautils.h>
+
+#include "ncdstorageimpl.h"
+#include "ncddbstoragemanager.h"
+#include "ncdfilestorageimpl.h"
+#include "catalogsdebug.h"
+#include "catalogsutils.h"
+#include "catalogsconstants.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+
+// ---------------------------------------------------------------------------
+// ConstructL
+// ---------------------------------------------------------------------------
+//
+void CNcdStorage::ConstructL( const TDesC& aNamespace )
+    {
+    DLTRACEIN( ("") );
+    iNamespace.CreateL( aNamespace ); 
+    iDirectory.Assign( EncodeFilenameLC( aNamespace, iOwner.FileSession() ) );
+    CleanupStack::Pop(); // iDirectory
+
+    HBufC* path = CurrentPathLC();
+    
+    DLTRACE(( _L("Creating the directory: %S"), path));
+    // Create the directory
+    BaflUtils::EnsurePathExistsL( iOwner.FileSession(), 
+        *path );    
+    
+    CleanupStack::PopAndDestroy( path );
+    DLTRACEOUT( ("") );   
+    }
+
+
+// ---------------------------------------------------------------------------
+// ConstructL
+// ---------------------------------------------------------------------------
+//
+void CNcdStorage::ConstructL( HBufC* aNamespace, HBufC* aDirectory )
+    {
+    DLTRACEIN( ("") );
+    iNamespace.Assign( aNamespace ); 
+    iDirectory.Assign( aDirectory );    
+
+    HBufC* path = CurrentPathLC();
+    
+    DLTRACE(( _L("Creating the directory: %S"), path));
+    // Create the directory
+    BaflUtils::EnsurePathExistsL( iOwner.FileSession(), 
+        *path );    
+    
+    CleanupStack::PopAndDestroy( path );
+    DLTRACEOUT( ("") );   
+    }
+
+
+// ---------------------------------------------------------------------------
+// NewL
+// ---------------------------------------------------------------------------
+//
+CNcdStorage* CNcdStorage::NewL( MNcdStorageOwner& aOwner, 
+    const TDesC& aNamespace )
+    {
+    CNcdStorage* self = CNcdStorage::NewLC( aOwner, aNamespace );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// NewLC
+// ---------------------------------------------------------------------------
+//
+CNcdStorage* CNcdStorage::NewLC( MNcdStorageOwner& aOwner, 
+    const TDesC& aNamespace )
+    {
+    CNcdStorage* self = new( ELeave ) CNcdStorage( aOwner );
+    CleanupStack::PushL( self );
+    self->ConstructL( aNamespace );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// NewL
+// ---------------------------------------------------------------------------
+//
+CNcdStorage* CNcdStorage::NewL( MNcdStorageOwner& aOwner, 
+    HBufC* aNamespace, HBufC* aDirectory )
+    {
+    CNcdStorage* self = new( ELeave ) CNcdStorage( aOwner );
+    CleanupStack::PushL( self );
+    self->ConstructL( aNamespace, aDirectory );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CNcdStorage::~CNcdStorage()
+    {
+    DLTRACEIN((""));
+    iNamespace.Close();        
+    iDirectory.Close();
+    iDbStorages.ResetAndDestroy();    
+    iFileStorages.ResetAndDestroy();
+    }
+       
+
+// ---------------------------------------------------------------------------
+// Gets an existing database storage or creates a new one
+// ---------------------------------------------------------------------------
+//
+MNcdDatabaseStorage& CNcdStorage::DatabaseStorageL( const TDesC& aUid )
+    {
+    DLTRACEIN( ( _L("Uid: %S"), &aUid ) );
+    TInt index = FindDbStorageByUid( aUid );
+    
+    CNcdDbStorageManager* db = NULL;
+    if ( index == KErrNotFound ) 
+        {
+        RBuf path;
+        CleanupClosePushL( path );
+        path.CreateL( KMaxPath );
+
+        
+        DLTRACE( ("DB not found, creating new object" ) );
+
+        // Creates the path
+        CreateCurrentPathL( path, aUid );      
+            
+        DLTRACE(( _L("Checking if the directory exists: %S"),
+            &path ));
+            
+        db = CNcdDbStorageManager::NewLC( FileSession(), aUid, path, 
+            iDirectory );
+        
+        
+        iDbStorages.AppendL( db );
+        CleanupStack::Pop( db );
+        CleanupStack::PopAndDestroy( &path );
+        }
+    else 
+        {
+        db = iDbStorages[index];
+        }
+        
+    DASSERT( db );
+    DLTRACEOUT( ( "db: %x", db ) );
+    return *db;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Gets an existing file storage or creates a new one
+// ---------------------------------------------------------------------------
+//
+MNcdFileStorage& CNcdStorage::FileStorageL( const TDesC& aUid )
+    {
+    DLTRACEIN( ( _L("Uid: %S"), &aUid ) );
+    TInt index = FindFileStorageByUid( aUid );
+    
+    CNcdFileStorage* fs = NULL;
+    if ( index == KErrNotFound ) 
+        {
+        RBuf path;
+        CleanupClosePushL( path );
+        path.CreateL( KMaxPath );
+        
+        CreateCurrentPathL( path, aUid );
+                    
+        // Note: giving the owner of this object instead of giving *this
+        fs = CNcdFileStorage::NewLC( iOwner, aUid, path );
+        iFileStorages.AppendL( fs );
+        CleanupStack::Pop( fs );        
+        CleanupStack::PopAndDestroy( &path );
+        }
+    else 
+        {
+        fs = iFileStorages[index];
+        }
+        
+    DASSERT( fs );
+    DLTRACEOUT( ( _L("fs: %x"), fs ) );
+    return *fs;    
+    }
+
+
+// ---------------------------------------------------------------------------
+// Namespace getter 
+// ---------------------------------------------------------------------------
+//
+const TDesC& CNcdStorage::Namespace() const
+    {
+    return iNamespace;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Directory getter 
+// ---------------------------------------------------------------------------
+//
+const TDesC& CNcdStorage::Directory() const
+    {
+    return iDirectory;
+    }
+
+
+// ---------------------------------------------------------------------------
+// File session getter
+// ---------------------------------------------------------------------------
+//    
+RFs& CNcdStorage::FileSession()
+    {
+    return iOwner.FileSession();
+    }
+
+
+// ---------------------------------------------------------------------------
+// Size getter
+// ---------------------------------------------------------------------------
+//    
+TInt CNcdStorage::SizeL()
+    {
+    DLTRACEIN((""));
+    HBufC* path = CurrentPathLC();
+    TInt size = FileSystemAllocationL( FileSession(), *path );
+    DLTRACEOUT(( _L("Size for path %S is %d bytes"), path, size ));
+    CleanupStack::PopAndDestroy( path );
+    return size;
+    }
+    
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//    
+CNcdStorage::CNcdStorage( MNcdStorageOwner& aOwner ) : iOwner( aOwner )
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// Searches for a database by name
+// ---------------------------------------------------------------------------
+//
+TInt CNcdStorage::FindDbStorageByUid( const TDesC& aUid )
+    {
+    for ( TInt i = 0; i < iDbStorages.Count(); ++i )
+        {
+        if ( iDbStorages[i]->Uid().Compare( aUid ) == 0 ) 
+            {
+            return i;
+            }
+        }
+    return KErrNotFound;
+    }
+    
+    
+// ---------------------------------------------------------------------------
+// Searches for a file storage by name
+// ---------------------------------------------------------------------------
+//
+TInt CNcdStorage::FindFileStorageByUid( const TDesC& aUid )
+    {
+    for ( TInt i = 0; i < iFileStorages.Count(); ++i )
+        {
+        if ( iFileStorages[i]->Uid().Compare( aUid ) == 0 ) 
+            {
+            return i;
+            }
+        }
+    return KErrNotFound;
+    }
+    
+    
+// ---------------------------------------------------------------------------
+// Generates the current path
+// ---------------------------------------------------------------------------
+//
+void CNcdStorage::CreateCurrentPathL( TDes& aPath, const TDesC& aUid ) const
+    {
+    iOwner.AppendRoot( aPath );
+       
+    DLTRACE(( _L("Adding namespace %S"), &iNamespace ));
+    aPath.Append( iDirectory );
+    aPath.Append( KDirectorySeparator );    
+    DLTRACE(( _L("Adding uid %S"), &aUid ));
+    aPath.Append( aUid );                
+    aPath.Append( KDirectorySeparator );    
+    
+    // Create the directory
+    BaflUtils::EnsurePathExistsL( iOwner.FileSession(), aPath );    
+    }
+
+
+// ---------------------------------------------------------------------------
+// Storage path getter
+// ---------------------------------------------------------------------------
+//
+HBufC* CNcdStorage::CurrentPathLC() const
+    {
+    HBufC* path = HBufC::NewLC( KMaxPath );
+    TPtr ptr( path->Des() );
+    iOwner.AppendRoot( ptr );
+    ptr.Append( iDirectory );
+    ptr.Append( KDirectorySeparator );    
+    return path;
+    }