diff -r 000000000000 -r e686773b3f54 predictivesearch/PcsAlgorithm/Algorithm2/src/CPcsCache.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/predictivesearch/PcsAlgorithm/Algorithm2/src/CPcsCache.cpp	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,623 @@
+/*
+* Copyright (c) 2007 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:  Holds the contact information in memory. It maintains a 
+*                master array of all contacts. It also has 10 pools corresponding
+*                to each key id in the keyboard. Based on numeric key char of 
+*                first char of firstname/ lastname a contact is added to one of the
+*                pools. Implements MDataStoreObserver interface functions to
+*                add/ remove contacts.
+*
+*/
+
+// INCLUDE FILES
+#include <MVPbkContactLink.h>
+
+#include "FindUtilChineseECE.h"
+#include "CPsData.h"
+#include "CPcsCache.h"
+#include "CPcsDebug.h"
+#include "CWords.h"
+#include "CPcsAlgorithm2Utils.h"
+#include "CPcsAlgorithm2.h"
+
+// ============================== MEMBER FUNCTIONS ============================
+
+// ----------------------------------------------------------------------------
+// CPcsCache::NewL
+// Two Phase Construction
+// ----------------------------------------------------------------------------
+CPcsCache* CPcsCache::NewL(CPcsAlgorithm2* aAlgorithm, TDesC& aURI, 
+                           CPcsKeyMap& aKeyMap, TUint8 aUriId)
+    {
+    PRINT ( _L("Enter CPcsCache::NewL") );
+
+    CPcsCache* instance = new (ELeave) CPcsCache();
+
+    CleanupStack::PushL(instance);
+
+    instance->ConstructL(aAlgorithm, aURI, aKeyMap, aUriId);
+
+    CleanupStack::Pop(instance);
+
+    PRINT ( _L("End CPcsCache::NewL") );
+
+    return instance;
+    }
+
+// ----------------------------------------------------------------------------
+// CPcsCache::CPcsCache
+// Constructor
+// ----------------------------------------------------------------------------
+CPcsCache::CPcsCache()
+    {
+    PRINT ( _L("Enter CPcsCache::CPcsCache") );
+    PRINT ( _L("End CPcsCache::CPcsCache") );
+    }
+
+// ----------------------------------------------------------------------------
+// CPcsCache::ConstructL
+// 2nd Phase Constructor
+// ----------------------------------------------------------------------------
+void CPcsCache::ConstructL(CPcsAlgorithm2* aAlgorithm, TDesC& aURI, 
+                           CPcsKeyMap& aKeyMap, TUint8 aUriId)
+    {
+    PRINT ( _L("Enter CPcsCache::ConstructL") );
+    iAlgorithm = aAlgorithm;
+
+    iURI = aURI.AllocL();
+    iUriId = aUriId;
+    //Update the caching status for this cache
+    iCacheStatus = ECachingNotStarted;
+
+    keyMap = &aKeyMap;
+
+    // Populate keyArr
+    for (TInt i = 0; i < aKeyMap.PoolCount(); i++)
+        {
+        RPointerArray<CPcsPoolElement> *keyMap = new (ELeave) RPointerArray<CPcsPoolElement> (1);
+        keyArr.InsertL(keyMap, i);
+        }
+
+    PRINT ( _L("End CPcsCache::ConstructL") );
+    }
+
+// ----------------------------------------------------------------------------
+// CPcsCache::~CPcsCache
+// Destructor
+// ----------------------------------------------------------------------------
+CPcsCache::~CPcsCache()
+    {
+    PRINT ( _L("Enter CPcsCache::~CPcsCache") );
+
+    if (iURI)
+        {
+        delete iURI;
+        }
+
+    // Loop thru cache info and free and the data elements
+    THashMapIter<TInt, TInt> iter(cacheInfo);
+
+    do
+        {
+        TInt* id = const_cast<TInt*> (iter.NextKey());
+
+        if (id == NULL)
+            break;
+
+        TInt* poolMap = iter.CurrentValue();
+
+        if (poolMap == NULL)
+            {
+            continue;
+            }
+
+        CPsData *data = NULL;
+        for (int keyIndex = 0; keyIndex <= keyArr.Count(); keyIndex++)
+            {
+            TBool present = GetPoolMap(*poolMap, keyIndex);
+
+            if (!present)
+                {
+                continue;
+                }
+
+            RPointerArray<CPcsPoolElement> tmpKeyMap = *(keyArr[keyIndex]);
+            for (int arrayIndex = 0; arrayIndex < tmpKeyMap.Count(); arrayIndex++)
+                {
+                CPcsPoolElement *element = tmpKeyMap[arrayIndex];
+                TInt localId = element->GetPsData()->Id();
+                if (*id == localId)
+                    {
+                    data = element->GetPsData();
+                    delete element;
+                    keyArr[keyIndex]->Remove(arrayIndex);
+                    }
+                }
+            };
+
+        // Remove this element from master pool
+        for (int arrayIndex = 0; arrayIndex < masterPool.Count(); arrayIndex++)
+            {
+            CPsData *dataElement = masterPool[arrayIndex];
+            TInt localId = dataElement->Id();
+            if (*id == localId)
+                {
+                masterPool.Remove(arrayIndex);
+                }
+            }
+
+        if (data)
+            {
+            delete data;
+            }
+
+        }
+    while (1);
+
+    for (TInt i = 0; i < keyArr.Count(); i++)
+        {
+        keyArr[i]->ResetAndDestroy();
+        delete keyArr[i];
+        keyArr[i] = NULL;
+        }
+
+    masterPool.ResetAndDestroy();
+
+    cacheInfo.Close();
+
+    keyArr.Reset();
+    iDataFields.Reset();
+    iSortOrder.Reset();
+    iIndexOrder.Reset();
+
+    PRINT ( _L("End CPcsCache::~CPcsCache") );
+    }
+
+// ----------------------------------------------------------------------------
+// CPcsCache::GetContactsForKeyL
+// Get list of pool elements specific to a pool
+// ----------------------------------------------------------------------------     
+void CPcsCache::GetContactsForKeyL(TInt aKeyId, RPointerArray<CPcsPoolElement>& aData)
+    {
+    PRINT ( _L("Enter CPcsCache::GetContactsForKeyL") );
+
+    RPointerArray<CPcsPoolElement> arr = *keyArr[aKeyId];
+    for (int i = 0; i < arr.Count(); i++)
+        {
+        CPcsPoolElement* value = arr[i];
+        aData.AppendL(value);
+        }
+
+    PRINT ( _L("End CPcsCache::GetContactsForKeyL") );
+    }
+
+// ----------------------------------------------------------------------------
+// CPcsCache::GetAllContentsL
+// Get all data elements in this cache
+// ----------------------------------------------------------------------------     
+void CPcsCache::GetAllContentsL(RPointerArray<CPsData>& aData)
+    {
+    PRINT ( _L("Enter CPcsCache::GetAllContentsL") );
+
+    for (int i = 0; i < masterPool.Count(); i++)
+        {
+        CPsData* value = masterPool[i];
+        aData.AppendL(value);
+        }
+
+    PRINT ( _L("End CPcsCache::GetAllContentsL") );
+    }
+
+// ----------------------------------------------------------------------------
+// CPcsCache::AddToPool
+// Adds a contact to cache
+// ----------------------------------------------------------------------------
+void CPcsCache::AddToPoolL(TInt& aPoolMap, CPsData& aData)
+    {
+    // Temp hash to remember the location of pool elements
+    // First TInt  = Pool 
+    // Second TInt = Location in the pool
+    // Required for memory optimization so that more than one pool
+    // element doesn't get added for the same data
+    RHashMap<TInt, TInt> elementHash;
+    TLinearOrder<CPcsPoolElement> rule(CPcsPoolElement::CompareByData);
+
+    // Parse thru each data element    
+    for (int dataIndex = 0; dataIndex < aData.DataElementCount(); dataIndex++)
+        {
+        // Stores first key for each word
+        RArray<TChar> firstKey;
+
+        // Recover the first character
+        if (aData.Data(dataIndex) && aData.Data(dataIndex)->Length() != 0)
+            {
+            // Split the data into words	
+            CWords* words = CWords::NewLC(*aData.Data(dataIndex));
+
+            // Store the first numeric key for each word
+            for (int i = 0; i < words->MdcaCount(); i++)
+                {
+                TChar firstChar;
+                for (int j = 0; j < words->MdcaPoint(i).Length(); j++)
+                    {
+                    firstChar = (words->MdcaPoint(i))[j];
+                    TBuf<20> word;
+                    word.Append(firstChar);
+                    if (iAlgorithm->FindUtilECE()->IsChineseWord(word))
+                        {
+                        RPointerArray<HBufC> spellList;
+                        if (iAlgorithm->FindUtilECE()->T9ChineseTranslationL(firstChar, spellList))
+                            {
+                            for (int j = 0; j < spellList.Count(); j++)
+                                {
+                                firstKey.Append(keyMap->KeyForCharacter(*(spellList[j]->Ptr())));
+                                }
+                            }
+                        else
+                            {
+                            firstKey.Append( keyMap->KeyForCharacter(firstChar));
+                            }
+                        spellList.ResetAndDestroy();
+                        }
+                    else
+                        {
+                        firstKey.Append(keyMap->KeyForCharacter(firstChar));
+                        }
+                    }
+                }
+
+            CleanupStack::PopAndDestroy(words);
+            }
+
+        for (TInt wordIndex = 0; wordIndex < firstKey.Count(); wordIndex++)
+            {
+            TInt arrayIndex = keyMap->PoolIdForCharacter(firstKey[wordIndex]);
+
+            CPcsPoolElement* element = NULL;
+
+            // Check if an element already exists in the pool for this data
+            TInt* loc = NULL;
+            loc = elementHash.Find(arrayIndex);
+            if (loc != NULL)
+                {
+                // Exists. Then recover ...
+                RPointerArray<CPcsPoolElement> tmpKeyMap = *(keyArr[arrayIndex]);
+                element = tmpKeyMap[*loc];
+                }
+
+            if (element == NULL) // Pool element doesn't exist. Create new ...
+                {
+                element = CPcsPoolElement::NewL(aData);
+                element->ClearDataMatchAttribute();
+                element->SetDataMatch(dataIndex);
+
+                // Insert to pool
+                keyArr[arrayIndex]->InsertInOrderAllowRepeatsL(element, rule);
+                TInt index = keyArr[arrayIndex]->FindInOrderL(element, rule);
+
+                // Set the bit for this pool					
+                SetPoolMap(aPoolMap, arrayIndex);
+
+                // Store the array index in the temp hash
+                elementHash.InsertL(arrayIndex, index);
+                }
+            else // Pool element exists. Just alter the data match attribute
+                {
+                element->SetDataMatch(dataIndex);
+
+                // Set the bit for this pool					
+                SetPoolMap(aPoolMap, arrayIndex);
+                }
+
+            } // for 2 loop
+
+        firstKey.Reset();
+
+        } // for 1 loop
+
+    elementHash.Close();
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::AddToCacheL
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::AddToCacheL(CPsData& aData)
+    {
+    // Protect against duplicate items getting added
+    if (cacheInfo.Find(aData.Id()) != NULL)
+        {
+        return;
+        }
+
+    // Include this element in the pool     
+    TInt poolMap = 0;
+    AddToPoolL(poolMap, aData);
+    cacheInfo.InsertL(aData.Id(), poolMap);
+
+    // Include this element in master pool        
+    TLinearOrder<CPsData> rule(CPcsAlgorithm2Utils::CompareDataBySortOrder);
+    masterPool.InsertInOrderAllowRepeatsL(&aData, rule);
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::RemoveContactL
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::RemoveFromCacheL(TInt aItemId)
+    {
+    CPsData *data = NULL;
+
+    TInt* poolMap = cacheInfo.Find(aItemId);
+
+    if (poolMap == NULL)
+        {
+        return;
+        }
+
+    // Remove this element from pools
+    for (int keyIndex = 0; keyIndex <= keyArr.Count(); keyIndex++)
+        {
+        TBool present = GetPoolMap(*poolMap, keyIndex);
+
+        if (!present)
+            {
+            continue;
+            }
+
+        RPointerArray<CPcsPoolElement> tmpKeyMap = *(keyArr[keyIndex]);
+        for (int arrayIndex = 0; arrayIndex < tmpKeyMap.Count(); arrayIndex++)
+            {
+            CPcsPoolElement *element = tmpKeyMap[arrayIndex];
+            TInt id = element->GetPsData()->Id();
+            if (id == aItemId)
+                {
+                data = element->GetPsData();
+                delete element;
+                keyArr[keyIndex]->Remove(arrayIndex);
+                }
+            }
+        }
+
+    // Remove this element from master pool
+    for (int arrayIndex = 0; arrayIndex < masterPool.Count(); arrayIndex++)
+        {
+        CPsData *dataElement = masterPool[arrayIndex];
+        TInt id = dataElement->Id();
+        if (id == aItemId)
+            {
+            masterPool.Remove(arrayIndex);
+            }
+        }
+
+    // Delete data 
+    if (data)
+        {
+        delete data;
+        data = NULL;
+        }
+
+    // Clear up cache information
+    cacheInfo.Remove(aItemId);
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::RemoveAllFromCacheL
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::RemoveAllFromCacheL()
+    {
+    PRINT ( _L("Enter CPcsCache::RemoveAllFromCacheL") );
+
+    for (TInt i = 0; i < keyArr.Count(); i++)
+        {
+        keyArr[i]->ResetAndDestroy();
+
+        }
+
+    masterPool.ResetAndDestroy();
+    cacheInfo.Close();
+
+    PRINT ( _L("End CPcsCache::RemoveAllFromCacheL") );
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::SetPoolMap
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::SetPoolMap(TInt& aPoolMap, TInt arrayIndex)
+    {
+    TReal val;
+    Math::Pow(val, 2, arrayIndex);
+
+    aPoolMap |= (TInt) val;
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::GetPoolMap
+// 
+// ---------------------------------------------------------------------
+TBool CPcsCache::GetPoolMap(TInt& aPoolMap, TInt arrayIndex)
+    {
+    TReal val;
+    Math::Pow(val, 2, arrayIndex);
+
+    return (aPoolMap & (TInt) val);
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::GetURI
+// 
+// ---------------------------------------------------------------------
+TDesC& CPcsCache::GetURI()
+    {
+    return (*iURI);
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::SetDataFields
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::SetDataFields(RArray<TInt>& aDataFields)
+    {
+    for (TInt i(0); i < aDataFields.Count(); i++)
+        {
+        iDataFields.Append(aDataFields[i]);
+        }
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::GetDataFields
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::GetDataFields(RArray<TInt>& aDataFields)
+    {
+    for (TInt i(0); i < iDataFields.Count(); i++)
+        {
+        aDataFields.Append(iDataFields[i]);
+        }
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::UpdateCacheStatus
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::UpdateCacheStatus(TInt aStatus)
+    {
+    iCacheStatus = aStatus;
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::GetCacheStatus
+// 
+// ---------------------------------------------------------------------
+TInt CPcsCache::GetCacheStatus()
+    {
+    return iCacheStatus;
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::GetUriId
+// 
+// ---------------------------------------------------------------------
+TUint8 CPcsCache::GetUriId()
+    {
+    return iUriId;
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::GetUri
+// 
+// ---------------------------------------------------------------------
+HBufC* CPcsCache::GetUri()
+    {
+    return iURI;
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::SetSortOrder
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::SetSortOrder(RArray<TInt>& aSortOrder)
+    {
+    PRINT ( _L("Enter CPcsCache::SetSortOrder") );
+
+    iSortOrder.Reset();
+
+    for (TInt i(0); i < aSortOrder.Count(); i++)
+        {
+        iSortOrder.Append(aSortOrder[i]);
+        }
+
+    ComputeIndexOrder();
+
+    PRINT ( _L("End CPcsCache::SetSortOrder") );
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::GetSortOrder
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::GetSortOrder(RArray<TInt>& aSortOrder)
+    {
+    aSortOrder.Reset();
+
+    for (TInt i(0); i < iSortOrder.Count(); i++)
+        {
+        aSortOrder.Append(iSortOrder[i]);
+        }
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::GetIndexOrder
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::GetIndexOrder(RArray<TInt>& aIndexOrder)
+    {
+    aIndexOrder.Reset();
+
+    for (TInt i(0); i < iIndexOrder.Count(); i++)
+        {
+        aIndexOrder.Append(iIndexOrder[i]);
+        }
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::ComputeIndexOrder
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::ComputeIndexOrder()
+    {
+    iIndexOrder.Reset();
+
+    for (int i = 0; i < iSortOrder.Count(); i++)
+        {
+        for (int j = 0; j < iDataFields.Count(); j++)
+            {
+            if (iSortOrder[i] == iDataFields[j])
+                {
+                iIndexOrder.Append(j);
+                break;
+                }
+            }
+        }
+    }
+
+// ---------------------------------------------------------------------
+// CPcsCache::ResortdataInPools
+// 
+// ---------------------------------------------------------------------
+void CPcsCache::ResortdataInPoolsL()
+    {
+    // copy masterPool data into masterPoolBackup
+    for (TInt i = 0; i < masterPool.Count(); i++ )
+        {
+        masterPoolBackup.Append( masterPool[i] );
+        }
+    //Now reset the key array
+    for (TInt i = 0; i < keyArr.Count(); i++ )
+        {
+        keyArr[i]->ResetAndDestroy();
+        }
+    masterPool.Reset();
+    cacheInfo.Close();
+    //now add data again from the masterPoolBackup
+    for (TInt i = 0; i < masterPoolBackup.Count(); i++ )
+        {
+        CPsData* temp = static_cast<CPsData*>(masterPoolBackup[i]);
+        AddToCacheL( *temp );
+        }
+    masterPoolBackup.Reset();
+    } 
+// End of file