author | hgs |
Fri, 15 Oct 2010 12:09:28 +0530 | |
changeset 24 | 65456528cac2 |
parent 23 | d4d56f5e7c55 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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#ifndef INDEXINGPLUGIN_H |
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#define INDEXINGPLUGIN_H |
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|
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#include <e32base.h> |
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#include <ecom/ImplementationInformation.h> |
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#include <MIndexingPluginObserver.h> |
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#include <RSearchServerSession.h> |
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#include <CCPixIndexer.h> |
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/** @addtogroup PluginAPI */ |
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/*\@{*/ |
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/** |
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* @file |
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* @ingroup PluginAPI |
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* @brief Contains CIndexingPlugin and related definitions |
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*/ |
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// Uid for this interface |
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const TUid KIndexingPluginInterfaceUid = { 0x2001F700 }; |
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/** |
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* @ingroup PluginAPI |
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* @brief Contains ECOM interface related methods |
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*/ |
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namespace CPixSearchECom |
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{ |
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/** |
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* CleanupPtrArray function is used for cleanup support of locally declared arrays. |
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* @param aArray An array to cleanup |
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*/ |
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template<typename T> inline void CleanupPtrArray( TAny* aArray ) |
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{ |
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static_cast<RPointerArray<T>*>(aArray)->ResetAndDestroy(); |
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static_cast<RPointerArray<T>*>(aArray)->Close(); |
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} |
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/** |
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* CleanupEComArray function is used for cleanup support of locally declared arrays. |
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* @param aArray An array to cleanup |
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*/ |
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inline void CleanupEComArray( TAny* aArray ) |
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{ |
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CleanupPtrArray<CImplementationInformation>( aArray ); |
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} |
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} |
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|
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/** |
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* @brief Base class for CPix Search Server plugins, responsible for harvesting |
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* |
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* CIndexPlugin is a base class for Search Server plugins, which are responsible |
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* for maintaining index databases for various datasources up to date. The plugins are |
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* expected to maintain the databases through harvesting and monitoring activities, |
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* where all items of the datasources are first indexed and after that the datasource |
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* is observed and the occured changes (insertions, updates, deletions) are applied |
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* also to the index database. |
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* |
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* Link against: CPixSearchPluginInterface.dll |
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*/ |
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class CIndexingPlugin : public CBase |
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{ |
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public: |
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IMPORT_C static CIndexingPlugin* NewL(const TUid aUid); |
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IMPORT_C virtual ~CIndexingPlugin(); |
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IMPORT_C static void ListImplementationsL(RImplInfoPtrArray& aImplInfoArray); |
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/** |
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* Set observer |
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* |
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*/ |
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IMPORT_C void SetObserver(MIndexingService& aObserver); |
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/** |
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* SetSearchSession |
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* Sets the RSearchServerSession for the plugin. |
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* |
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* @param aSearchSession search server session to be assigned to |
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* harvester plugins |
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*/ |
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IMPORT_C void SetSearchSession(RSearchServerSession& aSearchSession); |
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/** |
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* A pure virtual method which starts the monitoring/harvesting plugin |
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* Observer must be set before harvesting is started. |
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*/ |
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virtual void StartPluginL() = 0; |
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/** |
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* A pure virtual method which instructs plugin to start harvesting for certain media. |
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* Observer must be set before harvesting is started. |
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* |
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* @param aQualifiedBaseAppClass database to harvest |
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*/ |
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virtual void StartHarvestingL(const TDesC& aQualifiedBaseAppClass) = 0; |
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|
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/** |
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* Flush |
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* Issue CPix flush. Harvester should call this method after |
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* harvesting is done. |
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* |
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* @param aIndexer Indexer to be flushed |
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*/ |
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IMPORT_C void Flush(CCPixIndexer& aIndexer); |
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/** |
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* A pure virtual method which instructs plugin to pause harvesting. |
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* Data to be indexed has to be stored and later index when resume is called. |
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*/ |
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virtual void PausePluginL() = 0; |
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||
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/** |
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* A pure virtual method which instructs plugin to resume harvesting. |
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* plugin should index the queued items if any. |
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*/ |
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virtual void ResumePluginL() = 0; |
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/** |
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* A pure virtual method which instructs all plugins to store the records. |
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* if any during resume opreation to a temp storage. This function would be called |
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* periodically with time interval of 5 mins. |
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*/ |
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virtual void SaveL()= 0; |
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||
0
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private: // data members |
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// Identification on cleanup. |
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TUid iDtor_ID_Key; |
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protected: |
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// Observer interface |
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MIndexingService* iObserver; |
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|
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/* Search Server session member is used by harvester plugins */ |
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RSearchServerSession iSearchSession; |
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}; |
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|
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/*\@}*/ |
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|
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#endif // INDEXINGPLUGIN_H |