upnpsharing/upnpsharingalgorithm/src/upnpcdsliteobjectarray.cpp
branchIOP_Improvements
changeset 40 08b5eae9f9ff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/upnpsharing/upnpsharingalgorithm/src/upnpcdsliteobjectarray.cpp	Wed Nov 03 11:45:09 2010 +0200
@@ -0,0 +1,494 @@
+/*
+* Copyright (c) 2009 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: Implementation of CUpnpCdsLiteObjectArray
+*
+*/
+
+// INCLUDE FILES, SYSTEM
+#include <f32file.h>        // TParse
+#include <e32def.h>         // const_cast
+#include <escapeutils.h>    // ConvertFromUnicodeToUtf8L
+#include <upnpobject.h>
+#include <upnpcontainer.h>
+#include <upnpitem.h>
+#include <upnpelement.h>
+#include "upnpconstantdefs.h"
+
+// INCLUDE FILES, USER
+#include "upnpcdsliteobject.h"
+#include "upnpcdsliteobjectarray.h"
+#include "upnpsharingalgorithmconstants.h"
+#include "upnplog.h"
+
+// CONSTANTS
+_LIT8( KSpace, " ");
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::NewL
+// --------------------------------------------------------------------------
+//
+EXPORT_C CUpnpCdsLiteObjectArray* CUpnpCdsLiteObjectArray::NewL()
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::NewL" );
+
+    CUpnpCdsLiteObjectArray* self = new ( ELeave ) CUpnpCdsLiteObjectArray();
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::~CUpnpCdsLiteObjectArray
+// --------------------------------------------------------------------------
+//
+EXPORT_C CUpnpCdsLiteObjectArray::~CUpnpCdsLiteObjectArray()
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::\
+~CUpnpCdsLiteObjectArray" );
+
+    // Empty and close the array
+    iArray.ResetAndDestroy();
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::AppendL
+// --------------------------------------------------------------------------
+//
+EXPORT_C void CUpnpCdsLiteObjectArray::AppendL( CUpnpCdsLiteObject *aObject )
+    {
+    // Validate the parameter
+    if( !aObject ||
+        aObject->Name() == KNullDesC8 ||
+        aObject->ObjectId() == KNullDesC8 ||
+        aObject->ParentId() == KNullDesC8 ||
+        aObject->ObjectClass() == KNullDesC8 ||
+        ( aObject->Type() != CUpnpCdsLiteObject::EContainer &&
+          aObject->Type() != CUpnpCdsLiteObject::EItem &&
+          aObject->Type() != CUpnpCdsLiteObject::EItemReference ) ||
+        ( aObject->Type() == CUpnpCdsLiteObject::EItemReference &&
+          aObject->OriginalItemIdL() == KNullDesC8 ) )
+        {
+        User::Leave( KErrArgument );
+        }
+
+    // Append the item into the array. Leave if there is a problem.
+    TInt appendError = iArray.Append( aObject );
+    if( appendError != KErrNone )
+        {
+        User::Leave( appendError );
+        }
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::FindByName
+// --------------------------------------------------------------------------
+//
+EXPORT_C TInt CUpnpCdsLiteObjectArray::FindByName( TDesC8& aName )
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::FindByName" );
+    TInt returnvalue = KErrNotFound;
+
+    // Continue only if the given parameter is valid
+    if( aName != KNullDesC8 )
+        {
+        // Go through the array
+        for( TInt index=0; index<iArray.Count(); index++ )
+            {
+            // if a match is found, exit the loop
+            if( aName.Match( iArray[index]->Name() ) >= 0 )
+                {
+                returnvalue = index;
+                index = iArray.Count() + 1;
+                }
+            }
+        }
+    return returnvalue;
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::FindByNameAndParentId
+// --------------------------------------------------------------------------
+//
+EXPORT_C TInt CUpnpCdsLiteObjectArray::FindByNameAndParentId(
+                                                   const TDesC8& aName,
+                                                   const TDesC8& aParentId )
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::\
+FindByNameAndParentId" );
+
+    TInt returnvalue = KErrNotFound;
+
+    // Continue only if the given parameter is valid
+    if( aName != KNullDesC8 && aParentId != KNullDesC8 )
+        {
+        // Go through the array
+        for( TInt index=0; index<iArray.Count(); index++ )
+            {
+            // if a match is found, exit the loop
+            if( aName.Match( iArray[index]->Name() ) >= 0 &&
+                aParentId.Match( iArray[index]->ParentId() ) >= 0 )
+                {
+                returnvalue = index;
+                index = iArray.Count() + 1;
+                }
+            }
+        }
+    return returnvalue;
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::FindByMediaClassAndParentId
+// --------------------------------------------------------------------------
+//
+EXPORT_C TInt CUpnpCdsLiteObjectArray::FindByMediaClassAndParentId(
+                                                  const TDesC8& aMediaClass,
+                                                  const TDesC8& aParentId )
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::\
+FindByMediaClassAndParentId" );
+
+    TInt returnvalue = KErrNotFound;
+
+    // Continue only if the given parameter is valid
+    if( aMediaClass != KNullDesC8 &&
+        aParentId != KNullDesC8 )
+        {
+        // Go through the array
+        for( TInt index=0; index<iArray.Count(); index++ )
+            {
+            // if a match is found, exit the loop
+            if( aMediaClass.Match( iArray[index]->ObjectClass() ) >= 0 &&
+                aParentId.Match( iArray[index]->ParentId() ) >= 0 )
+                {
+                returnvalue = index;
+                index = iArray.Count() + 1;
+                }
+            }
+        }
+    return returnvalue;
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::FindByObjectId
+// --------------------------------------------------------------------------
+//
+EXPORT_C TInt CUpnpCdsLiteObjectArray::FindByObjectId(
+                                                 const TDesC8& aObjectId )
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::\
+FindByObjectId" );
+
+    TInt returnvalue = KErrNotFound;
+
+    // Continue only if the given parameter is valid
+    if( aObjectId != KNullDesC8 )
+        {
+        // Go through the array
+        for( TInt index=0; index<iArray.Count(); index++ )
+            {
+            // if a match is found, exit the loop
+            if( aObjectId.Match( iArray[index]->ObjectId() ) >= 0 )
+                {
+                returnvalue = index;
+                index = iArray.Count() + 1;
+                }
+            }
+        }
+    return returnvalue;
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::FindRefItemIdByOriginalIdL
+// --------------------------------------------------------------------------
+//
+EXPORT_C TInt CUpnpCdsLiteObjectArray::FindRefItemIdByOriginalIdL(
+                                                 const TDesC8& aOriginalId )
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::\
+FindRefItemIdByOriginalIdL" );
+
+    TInt returnvalue = KErrNotFound;
+
+    // Continue only if the given parameter is valid
+    if( aOriginalId != KNullDesC8 )
+        {
+        // Go through the array
+        for( TInt index=0; index<iArray.Count(); index++ )
+            {
+            // if a match is found, exit the loop
+            if( iArray[index]->Type() ==
+                    CUpnpCdsLiteObject::EItemReference &&
+                aOriginalId.Match( iArray[index]->OriginalItemIdL() ) >= 0 )
+                {
+                returnvalue = index;
+                index = iArray.Count() + 1;
+                }
+            }
+        }
+    return returnvalue;
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::ChildCount
+// --------------------------------------------------------------------------
+//
+EXPORT_C TInt CUpnpCdsLiteObjectArray::ChildCount( const TDesC8& aObjectId )
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::ChildCount" );
+
+    TInt returnvalue ( 0 );
+
+    // Continue only if the given parameter is valid
+    if( aObjectId != KNullDesC8 )
+        {
+        // Go through the array
+        for( TInt index=0; index<iArray.Count(); index++ )
+            {
+            // if a match is found, increase child count
+            if( aObjectId.Match( iArray[index]->ParentId() ) >= 0 )
+                {
+                returnvalue++;
+                }
+            }
+        }
+    return returnvalue;
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::Count
+// --------------------------------------------------------------------------
+//
+EXPORT_C TInt CUpnpCdsLiteObjectArray::Count( )
+    {
+    return iArray.Count();
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::ObjectAtL
+// --------------------------------------------------------------------------
+//
+EXPORT_C CUpnpCdsLiteObject& CUpnpCdsLiteObjectArray::ObjectAtL(
+                                                           TUint aIndex )
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::ObjectAtL" );
+
+    // Validate the parameter
+    if( aIndex > iArray.Count() )
+        {
+        User::Leave( KErrArgument );
+        }
+
+    // Return a reference to the object
+    CUpnpCdsLiteObject* object = iArray[aIndex];
+    return *object;
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::RemoveObjectAtL
+// --------------------------------------------------------------------------
+//
+EXPORT_C void CUpnpCdsLiteObjectArray::RemoveObjectAtL( TUint aIndex )
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::\
+RemoveObjectAtL" );
+
+    // Validate the parameter
+    if( aIndex > iArray.Count() )
+        {
+        User::Leave( KErrArgument );
+        }
+
+    // Get the pointer from the array
+    CUpnpCdsLiteObject* object = iArray[aIndex];
+
+    // Remove the object and compress the array
+    iArray.Remove( aIndex );
+    iArray.Compress();
+
+    // Delete the object
+    delete object;
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::AppendL
+// --------------------------------------------------------------------------
+//
+EXPORT_C void CUpnpCdsLiteObjectArray::AppendL( const CUpnpObject *aObject )
+    {
+    // First, create a new CreateUpnpCdsLiteObject
+    CUpnpCdsLiteObject* object = CreateUpnpCdsLiteObjectL( aObject );
+    CleanupStack::PushL( object );
+
+    // Append the item to the array
+    AppendL( object );
+    CleanupStack::Pop( object ); // ownership transfered
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::RemoveL
+// --------------------------------------------------------------------------
+//
+EXPORT_C void CUpnpCdsLiteObjectArray::RemoveL( const CUpnpObject *aObject )
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::RemoveL" );
+
+    // First, create a new CreateUpnpCdsLiteObject
+    CUpnpCdsLiteObject* object = CreateUpnpCdsLiteObjectL( aObject );
+    CleanupStack::PushL( object );
+
+    // Search the array and remove the object if found
+    TInt index = FindByObjectId( object->ObjectId() );
+    if( index >= 0 )
+        {
+        RemoveObjectAtL( index );
+        }
+
+    // Clean up
+    CleanupStack::PopAndDestroy( object );
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::CreateUpnpCdsLiteObjectL
+// --------------------------------------------------------------------------
+//
+CUpnpCdsLiteObject* CUpnpCdsLiteObjectArray::CreateUpnpCdsLiteObjectL(
+                                                const CUpnpObject *aObject )
+    {
+    // Check the param
+    if( !aObject )
+        {
+        User::Leave( KErrArgument );
+        }
+
+    CUpnpCdsLiteObject* object = NULL;
+
+    // Object is a container
+    if( aObject->ObjectClass().Find( KContainerClass() ) >= 0 )
+        {
+        // Cast to container object
+        CUpnpContainer* container = (CUpnpContainer*)aObject;
+
+        // Create the object accordingly
+        object = CUpnpCdsLiteObject::NewL( container->Title(),
+                                           CUpnpCdsLiteObject::EContainer,
+                                           container->Id(),
+                                           container->ParentId(),
+                                           container->ObjectClass() );
+        CleanupStack::PushL( object );
+        }
+
+    // Object is an item / reference item
+    else if( aObject->ObjectClass().Find( KItemClass() ) >= 0 )
+        {
+        // Cast to container object
+        CUpnpItem* item = (CUpnpItem*)aObject;
+
+        HBufC8* fileName = NULL;
+        // Resolve the type
+        CUpnpCdsLiteObject::TCdsLiteObjectType type =
+                                    CUpnpCdsLiteObject::EUnknown;
+        if( item->RefId() == KNullDesC8 )
+            {
+            type = CUpnpCdsLiteObject::EItem;
+            fileName = ResolveFileNameL( aObject );
+            CleanupStack::PushL( fileName );
+            }
+        else
+            {
+            type = CUpnpCdsLiteObject::EItemReference;
+            // Set space for reference filename.
+            // Item validation requires that CDS lite object's name field must
+            // be different that KNullDesC8.
+            // Mediaserver doesn't store this field for reference item and it
+            // is KNullDesC8 when structrure is read from server.
+            fileName = KSpace().AllocLC();
+            }
+
+        // Create the object accordingly
+        object = CUpnpCdsLiteObject::NewL( *fileName,
+                                           type,
+                                           item->Id(),
+                                           item->ParentId(),
+                                           item->ObjectClass() );
+
+        if ( fileName )
+            {
+            CleanupStack::PopAndDestroy( fileName );    
+            }
+
+        CleanupStack::PushL( object );
+
+        // Set the reference ID, if necessary
+        if( type == CUpnpCdsLiteObject::EItemReference )
+            {
+            object->SetOriginalItemIdL( item->RefId() );
+            }
+        }
+
+    // Object is neither a container nor an item, leave
+    else
+        {
+        User::Leave( KErrArgument );
+        }
+
+    CleanupStack::Pop( object );
+
+    return object;
+    }
+
+// --------------------------------------------------------------------------
+// CUpnpCdsLiteObjectArray::ResolveFileNameL
+// --------------------------------------------------------------------------
+//
+HBufC8* CUpnpCdsLiteObjectArray::ResolveFileNameL(
+                                        const CUpnpObject *aObject )
+    {
+    __LOG( "[CUpnpSharingAlgorithm]\t CUpnpCdsLiteObjectArray::\
+ResolveFileNameL" );
+
+    // Check parameter
+    if( !aObject )
+        {
+        User::Leave( KErrArgument );
+        }
+
+    HBufC8* returnValue = NULL;
+
+    // Get all the elements
+    const RUPnPElementsArray& elements =
+                    ( const_cast<CUpnpObject*>(aObject) )->GetElements();
+
+    // Find the "res" element
+    for( TInt index=0; index<elements.Count(); index++ )
+        {
+        if( elements[index]->Name() == KElementRes )
+            {
+            // Parse the filename
+            TParse fp;
+            fp.Set( elements[index]->FilePath(), 0, 0 );
+
+            // Full filename (path and drive letter included)
+            returnValue =
+                EscapeUtils::ConvertFromUnicodeToUtf8L( fp.FullName() );
+
+            // Exit the loop
+            index = elements.Count() + 1;
+            }
+        }
+
+    return returnValue;
+    }
+
+// End of file