ncdengine/provider/server/src/ncdnodeuricontentimpl.cpp
changeset 0 ba25891c3a9e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/provider/server/src/ncdnodeuricontentimpl.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,300 @@
+/*
+* 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:   Implements CNcdNodeuriContent class
+*
+*/
+
+
+#include "ncdnodeuricontentimpl.h"
+#include "catalogssession.h"
+#include "catalogsbasemessage.h"
+#include "ncdnodefunctionids.h"
+#include "ncdnodeclassids.h"
+#include "catalogsconstants.h"
+#include "ncd_pp_download.h"
+#include "ncd_cp_query.h"
+#include "catalogsutils.h"
+#include "catalogsdebug.h"
+#include "ncdpurchasedetails.h"
+#include "ncdutils.h"
+
+
+CNcdNodeUriContent::CNcdNodeUriContent( NcdNodeClassIds::TNcdNodeClassId aClassId )
+: CCatalogsCommunicable(),
+  iClassId( aClassId ),
+  iValidityDelta( -1 )
+    {
+    }
+
+void CNcdNodeUriContent::ConstructL()
+    {
+    iUriContent = KNullDesC().AllocL();
+    }
+
+
+CNcdNodeUriContent* CNcdNodeUriContent::NewL()
+    {
+    CNcdNodeUriContent* self =   
+        CNcdNodeUriContent::NewLC();
+    CleanupStack::Pop( self );
+    return self;        
+    }
+
+CNcdNodeUriContent* CNcdNodeUriContent::NewLC()
+    {
+    CNcdNodeUriContent* self = 
+        new( ELeave ) CNcdNodeUriContent( 
+            NcdNodeClassIds::ENcdNodeUriContentClassId );
+    CleanupClosePushL( *self );
+    self->ConstructL();
+    return self;        
+    }
+
+
+CNcdNodeUriContent::~CNcdNodeUriContent()
+    {
+    DLTRACEIN((""));
+
+    delete iUriContent;
+    iUriContent = NULL;
+
+    DLTRACEOUT((""));
+    }        
+
+NcdNodeClassIds::TNcdNodeClassId CNcdNodeUriContent::ClassId() const
+    {
+    return iClassId;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Internalization from purchase details 
+// ---------------------------------------------------------------------------
+//
+TBool CNcdNodeUriContent::InternalizeL( const MNcdPurchaseDetails& aDetails )
+    {
+    DLTRACEIN(("this-ptr: %X", this));
+
+    TArray<MNcdPurchaseDownloadInfo*> dlInfo ( aDetails.DownloadInfoL() );
+    
+    TInt index = KErrNotFound;                
+    for ( TInt i = 0; i < dlInfo.Count(); ++i )
+        {
+        if ( dlInfo[i]->ContentUsage() == MNcdPurchaseDownloadInfo::EConsumable )
+            {
+            DLINFO(("Download in index %d is consumable!", i));
+            index = i;
+            // Only one uri is supported so break immediately as we
+            // come across it
+            break;
+            }
+        }
+    
+    // Leaves if index is still KErrNotFound, positive indices don't leave
+    if ( index == KErrNotFound )
+        {
+        return EFalse;
+        }
+
+    DLTRACE(("Copying content URI"));
+    HBufC* uri = dlInfo[index]->ContentUri().AllocL();
+    delete iUriContent;
+    iUriContent = uri;
+    iValidityDelta = dlInfo[index]->ContentValidityDelta();
+    DLTRACEOUT(( _L("Content URI: %S"), iUriContent ));
+    
+    return ETrue;
+    }
+
+
+// Internalization from and externalization to the database
+    
+void CNcdNodeUriContent::ExternalizeL( RWriteStream& aStream )
+    {
+    DLTRACEIN((""));
+
+    aStream.WriteInt32L( ClassId() );
+    
+    ExternalizeDesL( *iUriContent, aStream );
+    
+    aStream.WriteInt32L( iValidityDelta );
+
+    DLTRACEOUT((""));
+    }
+
+
+void CNcdNodeUriContent::InternalizeL( RReadStream& aStream )
+    {
+    DLTRACEIN((""));
+
+    // Read the class id first because it is set to the stream in internalize
+    // function and it is not read from the stream anywhere else.
+    TInt classId( aStream.ReadInt32L() );
+    if ( classId != ClassId() )
+        {
+        DLTRACE(("Wrong class id"));
+        DASSERT( EFalse );
+        // Leave because the stream does not match this class object
+        User::Leave( KErrCorrupt );
+        }
+
+    InternalizeDesL( iUriContent, aStream );
+
+    iValidityDelta = aStream.ReadInt32L();
+    
+    DLTRACEOUT((""));
+    }
+
+
+
+// ---------------------------------------------------------------------------
+// URI getter
+// ---------------------------------------------------------------------------
+//
+const TDesC& CNcdNodeUriContent::Uri() const
+    {    
+    DASSERT( iUriContent );
+    DLTRACEIN(( _L("%S"), iUriContent ));
+    return *iUriContent;
+    }
+
+
+void CNcdNodeUriContent::ReceiveMessage( MCatalogsBaseMessage* aMessage,
+                                         TInt aFunctionNumber )
+    {
+    DLTRACEIN((""));    
+
+    DASSERT( aMessage );
+    
+    // Now, we can be sure that rest of the time iMessage exists.
+    // This member variable is set for the CounterPartLost function.
+    iMessage = aMessage;
+    
+    TInt trapError( KErrNone );
+    
+    // Check which function is called by the proxy side object.
+    // Function number are located in ncdnodefunctinoids.h file.
+    switch( aFunctionNumber )
+        {
+        case NcdNodeFunctionIds::ENcdInternalize:
+            // Internalize the proxy side according to the data
+            // of this object.
+            TRAP( trapError, InternalizeRequestL( *aMessage ) );
+            break;
+
+        case NcdNodeFunctionIds::ENcdRelease:
+            // The proxy does not want to use this object anymore.
+            // So, release the handle from the session.
+            ReleaseRequest( *aMessage );
+            break;
+                    
+        default:
+            DLERROR(("Unidentified function request"));
+            DASSERT( EFalse );
+            break;
+        }
+
+    if ( trapError != KErrNone )
+        {
+        // Because something went wrong, the complete has not been
+        // yet called for the message.
+        // So, inform the client about the error if the
+        // message is still available.
+        aMessage->CompleteAndRelease( trapError );
+        }
+
+    // Because the message should not be used after this, set it NULL.
+    // So, CounterPartLost function will know that no messages are
+    // waiting the response at the moment.
+    iMessage = NULL;        
+    
+    DLTRACEOUT((""));
+    }
+
+void CNcdNodeUriContent::CounterPartLost( const MCatalogsSession& aSession )
+    {
+    // This function may be called whenever -- when the message is waiting
+    // response or when the message does not exist.
+    // iMessage may be NULL here, because in the end of the
+    // ReceiveMessage it is set to NULL. The life time of the message
+    // ends shortly after CompleteAndRelease is called.
+    if ( iMessage != NULL )
+        {
+        iMessage->CounterPartLost( aSession );
+        }
+    }
+                
+
+void CNcdNodeUriContent::InternalizeRequestL( MCatalogsBaseMessage& aMessage )
+    {
+    DLTRACEIN((""));
+    
+    CBufBase* buf = CBufFlat::NewL( KBufExpandSize );
+    CleanupStack::PushL( buf );
+    
+    RBufWriteStream stream( *buf );
+    CleanupClosePushL( stream );
+
+
+    // Include all the necessary node data to the stream
+    ExternalizeDataForRequestL( stream );     
+    
+    
+    // Commits data to the stream when closing.
+    CleanupStack::PopAndDestroy( &stream );
+
+
+    // If this leaves, ReceiveMessage will complete the message.
+    // NOTE: that here we expect that the buffer contains at least
+    // some data. So, make sure that ExternalizeDataForRequestL inserts
+    // something to the buffer.
+    aMessage.CompleteAndReleaseL( buf->Ptr( 0 ), KErrNone );        
+        
+    
+    DLTRACE(("Deleting the buf"));
+    CleanupStack::PopAndDestroy( buf );
+        
+    DLTRACEOUT((""));
+    }
+    
+
+void CNcdNodeUriContent::ExternalizeDataForRequestL( RWriteStream& aStream )
+    {
+    DLTRACEIN((""));
+
+    ExternalizeL( aStream ); 
+        
+    DLTRACEOUT((""));
+    }
+
+void CNcdNodeUriContent::ReleaseRequest( MCatalogsBaseMessage& aMessage ) const
+    {
+    DLTRACEIN((""));
+
+    // Decrease the reference count for this object.
+    // When the reference count reaches zero, this object will be destroyed
+    // and removed from the session.
+    MCatalogsSession& requestSession( aMessage.Session() );
+    TInt handle( aMessage.Handle() );
+
+    // Send complete information back to proxy.
+    aMessage.CompleteAndRelease( KErrNone );
+        
+    // Remove this object from the session.
+    requestSession.RemoveObject( handle );
+        
+    DLTRACEOUT((""));
+    }
+
+