wvsettings20/IMPSSrc/CIMPSSAPKeyValuePairs.cpp
changeset 0 094583676ce7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvsettings20/IMPSSrc/CIMPSSAPKeyValuePairs.cpp	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,412 @@
+/*
+* 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:  Container for individual key-value pairs
+*
+*/
+
+// INCLUDE FILES
+#include    "CIMPSSAPKeyValuePairs.h"
+#include    "CIMPSSAPKeyValuePair.h"
+#include    "CIMPSSAPLookupKeyValuePair.h"
+#include    "IMPSSAPSettingsStorePanics.h"
+#include    <e32std.h>
+
+//CONSTANTS
+const TInt KKeyValuePairGranurality = 5;
+
+
+// LOCAL CONSTANTS AND MACROS
+#define KEYWORD_ORDER TLinearOrder< CIMPSSAPKeyValuePair > ( CompareKeys )
+
+
+// ============================ LOCAL FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CompareKeys()
+// Comparison function for TLinearOrder
+//
+// @param aLhs The left hand side in comparison.
+// @param aRhs The right hand side in comparison.
+// @return Result from compare
+// -----------------------------------------------------------------------------
+//
+TInt CompareKeys( const CIMPSSAPKeyValuePair& aLhs, const CIMPSSAPKeyValuePair& aRhs )
+    {
+    return aLhs.Key().Compare( aRhs.Key() );
+    }
+
+
+
+// -----------------------------------------------------------------------------
+// SetValueToPairs()
+// Templated algorithm to set or update new value to list of key values.
+//
+// @param aPairs The list of key-value pairs.
+// @param aLookupKey The lookup key to use in searching.
+// @param aKey The key for which to assign the value.
+// @param aValue Templated data type to assign to key.
+// @return Error code.
+// -----------------------------------------------------------------------------
+//
+template< typename T >
+TInt SetValueToPairs( RPointerArray< CIMPSSAPKeyValuePair >& aPairs,
+                      CIMPSSAPLookupKeyValuePair& aLookupKey,
+                      const TDesC& aKey,
+                      const T& aValue )
+    {
+    aLookupKey.SetLookupKey( aKey );
+
+
+    TInt err = KErrNone;
+    TInt index = aPairs.FindInOrder( &aLookupKey, KEYWORD_ORDER );
+
+    if ( index != KErrNotFound )
+        {
+        //Update existing
+        err = aPairs[ index ]->SetValue( aValue );
+        }
+
+    else
+        {
+        //create new
+        CIMPSSAPKeyValuePair* newPair = CIMPSSAPKeyValuePair::New( aKey );
+        if ( !newPair )
+            {
+            err = KErrNoMemory;
+            }
+        else
+            {
+            //Insert new
+
+            err = newPair->SetValue( aValue );
+            if ( err == KErrNone )
+                {
+                err = aPairs.InsertInOrderAllowRepeats( newPair, KEYWORD_ORDER );
+                }
+
+            if ( err != KErrNone )
+                {
+                delete newPair;
+                }
+
+            }
+        }
+    aLookupKey.ResetLookupKey();
+    return err;
+    }
+
+
+
+
+// -----------------------------------------------------------------------------
+// GetValueFromPairs()
+//
+// Templated algorithm to get value from list of key values.
+//
+// @param aPairs The list of key-value pairs.
+// @param aLookupKey The lookup key to use in searching.
+// @param aKey The key for which to get the value.
+// @param aValue Templated data type to get.
+// @return Error code.
+// -----------------------------------------------------------------------------
+//
+template< typename T >
+TInt GetValueFromPairs( const RPointerArray< CIMPSSAPKeyValuePair >& aPairs,
+                        CIMPSSAPLookupKeyValuePair& aLookupKey,
+                        const TDesC& aKey,
+                        T& aValue )
+    {
+    aLookupKey.SetLookupKey( aKey );
+
+
+    TInt index = aPairs.FindInOrder( &aLookupKey, KEYWORD_ORDER );
+    if ( index != KErrNotFound )
+        {
+        index = aPairs[ index ]->GetValue( aValue );
+        }
+
+
+    aLookupKey.ResetLookupKey();
+    return index;
+    }
+
+
+
+
+// ================= MEMBER FUNCTIONS =======================
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::NewL()
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CIMPSSAPKeyValuePairs* CIMPSSAPKeyValuePairs::NewL()
+    {
+    CIMPSSAPKeyValuePairs* self = new ( ELeave ) CIMPSSAPKeyValuePairs;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop(); //self
+    return self;
+    }
+
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::~CIMPSSAPKeyValuePairs()
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CIMPSSAPKeyValuePairs::~CIMPSSAPKeyValuePairs()
+    {
+    iPairs.ResetAndDestroy();
+    delete iLookupKey;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::CIMPSSAPKeyValuePairs()
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CIMPSSAPKeyValuePairs::CIMPSSAPKeyValuePairs()
+        : iPairs( KKeyValuePairGranurality )
+    {
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::ConstructL)
+// -----------------------------------------------------------------------------
+//
+void CIMPSSAPKeyValuePairs::ConstructL()
+    {
+    iLookupKey = CIMPSSAPLookupKeyValuePair::NewL();
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::ObjectID()
+// -----------------------------------------------------------------------------
+//
+TIMPSSapObjectID CIMPSSAPKeyValuePairs::ObjectID() const
+    {
+    return EIMPSSapObjKeyValuePairs;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::ObjectVersion()
+// -----------------------------------------------------------------------------
+//
+TInt CIMPSSAPKeyValuePairs::ObjectVersion() const
+    {
+    return KIMPSSapObjVersionInitial;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::ExternalizeVersionDataL()
+// -----------------------------------------------------------------------------
+//
+void CIMPSSAPKeyValuePairs::ExternalizeVersionDataL( TInt aVersion,
+                                                     RWriteStream& aStream ) const
+    {
+    switch ( aVersion )
+        {
+        case  KIMPSSapObjVersionInitial:
+            {
+            //Phase 1 key value objects
+
+            const TInt count = iPairs.Count();
+            aStream.WriteInt32L( count );
+            for ( TInt ii = 0; ii < count; ii++ )
+                {
+                iPairs[ ii ]->ExternalizeL( aStream );
+                }
+            break;
+            }
+
+        default:
+            {
+            //Unknown version ID in externalization.
+            Panic( EIMPSSetStoreUnknownObjectVersionExternalize );
+            break;
+            }
+        };
+    }
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::InternalizeVersionDataL()
+// -----------------------------------------------------------------------------
+//
+void CIMPSSAPKeyValuePairs::InternalizeVersionDataL( TInt aVersion,
+                                                     RReadStream& aStream )
+    {
+    switch ( aVersion )
+        {
+        case  KIMPSSapObjVersionInitial:
+            {
+            //Phase 1 key value objects
+            const TInt count = aStream.ReadInt32L();
+            for ( TInt ii = 0; ii < count; ii++ )
+                {
+                CIMPSSAPKeyValuePair* pair = CIMPSSAPKeyValuePair::NewLC( aStream );
+                User::LeaveIfError( iPairs.Append( pair ) );
+                CleanupStack::Pop( pair );
+                }
+
+            break;
+            }
+
+        default:
+            {
+            //Unknown version ID in internalization.
+            Panic( EIMPSSetStoreUnknownObjectVersionInternalize );
+            break;
+            }
+        };
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::DataSize()
+// -----------------------------------------------------------------------------
+//
+TInt CIMPSSAPKeyValuePairs::DataSize() const
+    {
+    //pairs count == 4 bytes
+    TInt dataSize = 4;
+    const TInt count = iPairs.Count();
+    for ( TInt ii = 0; ii < count; ii++ )
+        {
+        dataSize += iPairs[ ii ]->DataSize();
+        }
+
+    return dataSize;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::Reset()
+// -----------------------------------------------------------------------------
+//
+void CIMPSSAPKeyValuePairs::Reset()
+    {
+    iPairs.ResetAndDestroy();
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::SetValueInt()
+// -----------------------------------------------------------------------------
+//
+TInt CIMPSSAPKeyValuePairs::SetValueInt( const TDesC& aKey, TInt aValue )
+    {
+    return SetValueToPairs( iPairs, *iLookupKey, aKey, aValue );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::SetValueDesC8()
+// -----------------------------------------------------------------------------
+//
+TInt CIMPSSAPKeyValuePairs::SetValueDesC8( const TDesC& aKey, const TDesC8& aValue )
+    {
+    return SetValueToPairs( iPairs, *iLookupKey, aKey, aValue );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::SetValueDesC16()
+// -----------------------------------------------------------------------------
+//
+TInt CIMPSSAPKeyValuePairs::SetValueDesC16( const TDesC& aKey, const TDesC16& aValue )
+    {
+    return SetValueToPairs( iPairs, *iLookupKey, aKey, aValue );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::GetValueInt()
+// -----------------------------------------------------------------------------
+//
+TInt CIMPSSAPKeyValuePairs::GetValueInt( const TDesC& aKey, TInt& aValue )
+    {
+    return GetValueFromPairs( iPairs, *iLookupKey, aKey, aValue );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::GetValueDesC8()
+// -----------------------------------------------------------------------------
+//
+TInt CIMPSSAPKeyValuePairs::GetValueDesC8( const TDesC& aKey, TPtrC8& aValue )
+    {
+    return GetValueFromPairs( iPairs, *iLookupKey, aKey, aValue );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::GetValueDesC16()
+// -----------------------------------------------------------------------------
+//
+TInt CIMPSSAPKeyValuePairs::GetValueDesC16( const TDesC& aKey, TPtrC16& aValue )
+    {
+    return GetValueFromPairs( iPairs, *iLookupKey, aKey, aValue );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::DeletePair()
+// -----------------------------------------------------------------------------
+//
+TInt CIMPSSAPKeyValuePairs::DeletePair( const TDesC& aKey )
+    {
+
+    iLookupKey->SetLookupKey( aKey );
+
+    TInt index = iPairs.FindInOrder( iLookupKey, KEYWORD_ORDER );
+    if ( index != KErrNotFound )
+        {
+        delete iPairs[ index ];
+        iPairs.Remove( index );
+        index = KErrNone;
+        }
+
+    iLookupKey->ResetLookupKey();
+
+    return index;
+    }
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::Pairs()
+// -----------------------------------------------------------------------------
+//
+const RPointerArray< CIMPSSAPKeyValuePair >& CIMPSSAPKeyValuePairs::Pairs() const
+    {
+    return iPairs;
+    }
+
+// -----------------------------------------------------------------------------
+// CIMPSSAPKeyValuePairs::Pairs()
+// -----------------------------------------------------------------------------
+//
+RPointerArray< CIMPSSAPKeyValuePair >& CIMPSSAPKeyValuePairs::Pairs()
+    {
+    return iPairs;
+    }
+
+//  End of File
+