browserutilities/feedsengine/FeedsServer/FolderHandler/inc/OpmlParser.h
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     1 /*
       
     2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of the License "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  An Opml parser.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #ifndef OPML_PARSER_H
       
    20 #define OPML_PARSER_H
       
    21 
       
    22 
       
    23 // INCLUDES
       
    24 #include <e32base.h>
       
    25 #include <xmlengdom.h>
       
    26 
       
    27 #include "LeakTracker.h"
       
    28 
       
    29 // CONSTANTS
       
    30 
       
    31 // MACROS
       
    32 
       
    33 // DATA TYPES
       
    34 
       
    35 // FUNCTION PROTOTYPES
       
    36 
       
    37 // FORWARD DECLARATIONS
       
    38 class CPackedFolder;
       
    39 class CXmlUtils;
       
    40 class RXmlEngDocument;
       
    41 class TXmlEngElement;
       
    42 
       
    43 // CLASS DECLARATION
       
    44 
       
    45 /**
       
    46 *  An Opml parser.
       
    47 *
       
    48 *  \b Library: FeedsEngine.lib
       
    49 *
       
    50 *  @since 3.0
       
    51 */
       
    52 class COpmlParser: public CBase
       
    53     {
       
    54     public:  // Constructors and destructor
       
    55         /**
       
    56         * Two-phased constructor.
       
    57         */
       
    58         static COpmlParser* NewL(CXmlUtils& aXmlUtils);
       
    59 
       
    60         /**
       
    61         * Destructor.
       
    62         */        
       
    63         virtual ~COpmlParser();
       
    64 
       
    65     public:  // New Methods
       
    66         /**
       
    67         * Returns true if this parser can process the given document. 
       
    68         *
       
    69         * @since 3.0
       
    70         * @param aDocument A libxml2 document.
       
    71         * @param aContentType The content-type.
       
    72         * @return true or false.
       
    73         */
       
    74         TBool IsSupported(RXmlEngDocument aDocument, const TDesC& aContentType) const;
       
    75 
       
    76         /**
       
    77         * Parses the given buffer.
       
    78         *
       
    79         * @since 3.0
       
    80         * @param aBuffer The buffer to parse.
       
    81         * @param aContentType The buffer's content-type.
       
    82         * @param aCharSet The buffer's char-set.
       
    83         * @param aImportRootFolder The root folder name
       
    84         * @return void.
       
    85         */
       
    86         CPackedFolder* ParseL(TDesC8& aBuffer, const TDesC& aContentType, 
       
    87                 const TDesC& aCharSet, const TDesC& aImportRootFolder) const;
       
    88                 
       
    89     private:  // New Methods
       
    90         /**
       
    91         * C++ default constructor.
       
    92         */
       
    93         COpmlParser(CXmlUtils& aXmlUtils);
       
    94         
       
    95         /**
       
    96         * By default Symbian 2nd phase constructor is private.
       
    97         */
       
    98         void ConstructL();
       
    99         
       
   100         /**
       
   101         * Populates the PackedFolder with the values from the given node. 
       
   102         *
       
   103         * @since 3.0
       
   104         * @param aNode A libxml2 node.
       
   105         * @param aPackedFolder The packed folder.
       
   106         * @return void.
       
   107         */
       
   108         void ProcessFolderL(TXmlEngElement aNode, CPackedFolder& aPackedFolder) const;
       
   109 
       
   110         /**
       
   111         * Search for the feed URL from a set of feed URLs present in the current folder seperated by commas
       
   112         *
       
   113         * @since 3.2
       
   114         * @param aURLsInCurFolder Feed URLs in the current folder
       
   115         * @param aFeedURL Feed URL to be serached
       
   116         * @param aFound Will be set to ETrue if found otherwise EFalse
       
   117         * @return void.
       
   118         */
       
   119         void SearchURLInCurrentFolderL(HBufC* aURLsInCurFolder, HBufC* aFeedURL, TBool& aFound) const;
       
   120 
       
   121         
       
   122     private:  // Data
       
   123         // WARNING!!! This class must be "Thread (ActiveObject) safe".  Meaning
       
   124         //            that it must not contain any member variables that can't
       
   125         //            be safely shared between all "threads" using it.
       
   126 
       
   127         TLeakTracker  iLeakTracker;
       
   128 
       
   129 		CXmlUtils&  iXmlUtils;
       
   130     };
       
   131     
       
   132 #endif      // OPML_PARSER_H
       
   133             
       
   134 // End of File