--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/meetingrequest/mrpolicy/src/cesmrpolicymanager.cpp	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,347 @@
+/*
+* Copyright (c) 2007-2009 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:  ESMR policymmanager implementation
+*
+*/
+
+
+#include "emailtrace.h"
+#include "cesmrpolicymanager.h"
+//<cmail>
+#include "cesmrpolicy.h"
+#include <esmrpolicies.rsg>
+#include "esmrdef.h"
+//</cmail>
+#include "esmrinternaluid.h"
+#include "cesmrcalimportexporter.h"
+#include "tesmrentryfield.h"
+#include "cesmrpolicychecker.h"
+#include "cesmrpolicyextensionmanager.h"
+
+#include <coemain.h>// CCoeEnv
+#include <barsread.h>
+
+
+/// Unnamed namespace for local definitions
+namespace {
+
+// Definition for resource id array granularity
+const TInt KESMRPolicyIdArrayGranularity = 4;
+
+/**
+ * Reads ESMR policy resource id table from resource.
+ *
+ * @param aReader Reference to resource reader.
+ * @param aResourceIdTable Reference to resource id table.
+ */
+void ReadResourceIdArrayL(
+        TResourceReader& aReader,
+        RArray<TInt>& aResourceIdTable )
+    {
+    TInt numOfFields = aReader.ReadInt16();
+    for (TInt i(0); i < numOfFields; i++ )
+        {
+        TInt resourceId= aReader.ReadInt32();
+        aResourceIdTable.AppendL(resourceId);
+        }
+    }
+
+
+#ifdef _DEBUG
+
+_LIT( KESMRPolicyMgrPanic, "ESMRPolicyManager" );
+
+enum TESMRPolicyManagerPanic
+    {
+    EESMRPolicyMgrNoPolicyFound = 1,
+    EESMRPolicyMgrPopWithoutPush
+    };
+
+void Panic( TESMRPolicyManagerPanic aPanic )
+    {
+    User::Panic( KESMRPolicyMgrPanic, aPanic );
+    }
+
+/**
+ * Logs policy information.
+ *
+ * @param aPolicy Reference to policy.
+ */
+void LogPolicy(
+        const CESMRPolicy& aPolicy )
+    {
+
+
+
+
+
+    const RArray<TESMREntryField>& fieldArray = aPolicy.Fields();
+    TInt fieldCount( fieldArray.Count() );
+
+
+    for ( TInt i(0); i < fieldCount; ++i )
+        {
+        const TESMREntryField& field = fieldArray[i];
+
+        }
+    }
+
+#define LOG_POLICY( x ) { LogPolicy( x ); } 
+
+#else
+
+#define LOG_POLICY( x )
+
+#endif // _DEBUG
+
+}  // namespace
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyManager::CESMRPolicyManager
+// ---------------------------------------------------------------------------
+//
+inline CESMRPolicyManager::CESMRPolicyManager()
+:   iPolicyResourceIds( KESMRPolicyIdArrayGranularity )
+    {
+    FUNC_LOG;
+    //do nothing
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyManager::~CESMRPolicyManager
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CESMRPolicyManager::~CESMRPolicyManager()
+    {
+    FUNC_LOG;
+    delete iDefaultPolicyChecker;
+    delete iCurrentPolicy;
+    delete iExtension;
+    iPolicyResourceFile.Close();
+    iPolicyResourceIds.Close();
+    iPolicyStack.ResetAndDestroy();
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyManager::NewL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CESMRPolicyManager* CESMRPolicyManager::NewL()
+    {
+    FUNC_LOG;
+
+    CESMRPolicyManager* self = new (ELeave) CESMRPolicyManager;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop(self);
+
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyManager::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CESMRPolicyManager::ConstructL()
+    {
+    FUNC_LOG;
+    iDefaultPolicyChecker = CESMRPolicyChecker::NewL();
+    iCoeEnv = CCoeEnv::Static();
+    iExtension = CESMRPolicyExtensionManager::NewL( *iCoeEnv );
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyManager::ExtensionUid
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TUid CESMRPolicyManager::ExtensionUid()
+    {
+    FUNC_LOG;
+    return TUid::Uid( KESMRPolicyMgrUid );
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyManager::ResolvePolicyL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CESMRPolicyManager::ResolvePolicyL(
+        const TESMRScenarioData& aScenarioData,
+        MESMRCalEntry& aESMREntry,
+        MESMRPolicyChecker* aPolicyChecker )
+    {
+    FUNC_LOG;
+
+    MESMRPolicyChecker* policyChecker = iDefaultPolicyChecker;
+    if ( aPolicyChecker )
+        {
+        policyChecker = aPolicyChecker;
+        }
+
+    delete iCurrentPolicy;
+    iCurrentPolicy = NULL;
+
+    TInt policyCount( iPolicyResourceIds.Count() );
+    for ( TInt i( 0 );
+        ( i < policyCount) && !iCurrentPolicy;
+          ++i )
+        {
+        ReadPolicyL( iPolicyResourceIds[i], aESMREntry );
+        if ( !policyChecker->MatchesL( *iCurrentPolicy, aScenarioData ) )
+            {
+            // Policy did not match --> Reading next
+            delete iCurrentPolicy;
+            iCurrentPolicy = NULL;
+            }
+        }
+
+    // Matching policy not found --> Panic
+    __ASSERT_DEBUG( iCurrentPolicy, Panic(EESMRPolicyMgrNoPolicyFound) );
+
+    if ( !iCurrentPolicy )
+        {
+        User::Leave( KErrNotFound );
+        }
+
+    // Logging policy for debugging purposes
+    LOG_POLICY( *iCurrentPolicy )
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyManager::PushPolicyL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CESMRPolicyManager::PushPolicyL()
+    {
+    if ( iCurrentPolicy )
+        {
+        iPolicyStack.AppendL( iCurrentPolicy );
+        iCurrentPolicy = NULL;
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyManager::PopPolicy
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CESMRPolicy* CESMRPolicyManager::PopPolicy()
+    {
+    delete iCurrentPolicy;
+    iCurrentPolicy = NULL;
+    
+    TInt stackCount = iPolicyStack.Count(); 
+    if ( stackCount )
+        {
+        iCurrentPolicy = iPolicyStack[ --stackCount ];
+        iPolicyStack.Remove( stackCount );
+        }
+    
+    __ASSERT_DEBUG( iCurrentPolicy, Panic( EESMRPolicyMgrPopWithoutPush ) );
+    
+    return iCurrentPolicy;
+    }
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyManager::ReadPolicyFromResourceL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CESMRPolicyManager::ReadPolicyFromResourceL(
+        const TDesC& aPolicyFile,
+        TInt aPolicyArrayResourceId )
+    {
+    FUNC_LOG;
+
+
+    iPolicyResourceFile.Close();
+    iPolicyResourceFile.OpenL( iCoeEnv->FsSession(), aPolicyFile );
+    iPolicyResourceFile.ConfirmSignatureL();
+
+    // R_ESMR_POLICIES
+    HBufC8* resourceIdBuffer =
+        iPolicyResourceFile.AllocReadLC( aPolicyArrayResourceId );
+
+    // Construct resource reader
+    TResourceReader reader;
+    reader.SetBuffer(resourceIdBuffer);
+
+    // Read policy resource ids
+    iPolicyResourceIds.Reset();
+    ReadResourceIdArrayL(reader, iPolicyResourceIds );
+
+    CleanupStack::PopAndDestroy( resourceIdBuffer );
+
+    // Load extension resources
+    iExtension->ReadResourcesFromExtensionsL();
+
+    }
+
+
+// ---------------------------------------------------------------------------
+// CESMRPolicyManager::ReadPolicyL
+// ---------------------------------------------------------------------------
+//
+void CESMRPolicyManager::ReadPolicyL(
+        TInt aResourceId,
+        MESMRCalEntry& /*aESMREntry */)
+    {
+    FUNC_LOG;
+
+    HBufC8* resourceBuffer = NULL;
+    // First try to find policy from static policies and then from extensions
+    TRAPD( error, resourceBuffer = iPolicyResourceFile.AllocReadL( aResourceId ) );
+    if ( resourceBuffer )
+        {
+        CleanupStack::PushL( resourceBuffer );
+        }
+
+    TResourceReader reader;
+    CESMRPolicy* policy = NULL;
+    if ( error == KErrNone && resourceBuffer )
+        {
+        reader.SetBuffer(resourceBuffer);
+        policy = CESMRPolicy::NewL( iPolicyResourceFile, reader );
+        }
+    else
+        {
+        resourceBuffer = iExtension->ReadBufferL( aResourceId );
+        CESMRExtensionResourceFile* file = NULL;
+        if ( resourceBuffer )
+            {
+            CleanupStack::PushL( resourceBuffer );
+            file = iExtension->ExtensionResourceFile( aResourceId );
+            }
+
+        if ( resourceBuffer && file )
+            {
+            reader.SetBuffer(resourceBuffer);
+            policy = CESMRPolicy::NewL( file->ResFile(), reader );
+            }
+        }
+
+    // Logging read policy
+    LOG_POLICY( *policy )
+
+    delete iCurrentPolicy; 
+    iCurrentPolicy = policy;
+
+    if ( resourceBuffer )
+        {
+        CleanupStack::PopAndDestroy( resourceBuffer );
+        }
+
+    }
+
+// EOF
+