LCOV - code coverage report
Current view: directory - ogr/ogrsf_frmts/gml - gmlreaderp.h (source / functions) Found Hit Coverage
Test: gdal_filtered.info Lines: 9 9 100.0 %
Date: 2010-01-09 Functions: 9 9 100.0 %

       1                 : /******************************************************************************
       2                 :  * $Id: gmlreaderp.h 18188 2009-12-05 22:19:00Z chaitanya $
       3                 :  *
       4                 :  * Project:  GML Reader
       5                 :  * Purpose:  Private Declarations for OGR free GML Reader code.
       6                 :  * Author:   Frank Warmerdam, warmerdam@pobox.com
       7                 :  *
       8                 :  ******************************************************************************
       9                 :  * Copyright (c) 2002, Frank Warmerdam
      10                 :  *
      11                 :  * Permission is hereby granted, free of charge, to any person obtaining a
      12                 :  * copy of this software and associated documentation files (the "Software"),
      13                 :  * to deal in the Software without restriction, including without limitation
      14                 :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      15                 :  * and/or sell copies of the Software, and to permit persons to whom the
      16                 :  * Software is furnished to do so, subject to the following conditions:
      17                 :  * 
      18                 :  * The above copyright notice and this permission notice shall be included
      19                 :  * in all copies or substantial portions of the Software.
      20                 :  * 
      21                 :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      22                 :  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      23                 :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
      24                 :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      25                 :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      26                 :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
      27                 :  * DEALINGS IN THE SOFTWARE.
      28                 :  ****************************************************************************/
      29                 : 
      30                 : #ifndef _CPL_GMLREADERP_H_INCLUDED
      31                 : #define _CPL_GMLREADERP_H_INCLUDED
      32                 : 
      33                 : #include "gmlreader.h"
      34                 : #include "ogr_api.h"
      35                 : 
      36                 : class GMLReader;
      37                 : 
      38                 : /************************************************************************/
      39                 : /*                              GMLHandler                              */
      40                 : /************************************************************************/
      41                 : class GMLHandler
      42                 : {
      43                 :     char       *m_pszCurField;
      44                 : 
      45                 :     char       *m_pszGeometry;
      46                 :     int        m_nGeomAlloc;
      47                 :     int        m_nGeomLen;
      48                 : 
      49                 :     int        m_nGeometryDepth;
      50                 : 
      51                 :     int        m_nDepth;
      52                 :     int        m_nDepthFeature;
      53                 : 
      54                 : protected:
      55                 :     GMLReader  *m_poReader;
      56                 : 
      57                 : public:
      58                 :     GMLHandler( GMLReader *poReader );
      59                 :     virtual ~GMLHandler();
      60                 : 
      61                 :     virtual OGRErr      startElement(const char *pszName, void* attr);
      62                 :     virtual OGRErr      endElement(const char *pszName);
      63                 :     virtual OGRErr      dataHandler(const char *data, int nLen);
      64                 :     virtual char*       GetFID(void* attr) = 0;
      65                 :     virtual char*       GetAttributes(void* attr) = 0;
      66                 : 
      67                 :     int         IsGeometryElement( const char *pszElement );
      68                 : };
      69                 : 
      70                 : 
      71                 : #if HAVE_XERCES == 1
      72                 : 
      73                 : // This works around problems with math.h on some platforms #defining INFINITY
      74                 : #ifdef INFINITY
      75                 : #undef  INFINITY
      76                 : #define INFINITY INFINITY_XERCES
      77                 : #endif
      78                 : 
      79                 : #include <util/PlatformUtils.hpp>
      80                 : #include <sax2/DefaultHandler.hpp>
      81                 : #include <sax2/ContentHandler.hpp>
      82                 : #include <sax2/SAX2XMLReader.hpp>
      83                 : #include <sax2/XMLReaderFactory.hpp>
      84                 : #include <sax2/Attributes.hpp>
      85                 : 
      86                 : #ifdef XERCES_CPP_NAMESPACE_USE
      87                 : XERCES_CPP_NAMESPACE_USE
      88                 : #endif
      89                 : 
      90                 : 
      91                 : /************************************************************************/
      92                 : /*          XMLCh / char translation functions - trstring.cpp           */
      93                 : /************************************************************************/
      94                 : int tr_strcmp( const char *, const XMLCh * );
      95                 : void tr_strcpy( XMLCh *, const char * );
      96                 : void tr_strcpy( char *, const XMLCh * );
      97                 : char *tr_strdup( const XMLCh * );
      98                 : int tr_strlen( const XMLCh * );
      99                 : 
     100                 : /************************************************************************/
     101                 : /*                         GMLXercesHandler                             */
     102                 : /************************************************************************/
     103                 : class GMLXercesHandler : public DefaultHandler, public GMLHandler
     104                 : {
     105                 :     int        m_nEntityCounter;
     106                 : 
     107                 : public:
     108                 :     GMLXercesHandler( GMLReader *poReader );
     109                 :     
     110                 :     void startElement(
     111                 :         const   XMLCh* const    uri,
     112                 :         const   XMLCh* const    localname,
     113                 :         const   XMLCh* const    qname,
     114                 :         const   Attributes& attrs
     115                 :     );
     116                 :     void endElement(
     117                 :         const   XMLCh* const    uri,
     118                 :         const   XMLCh* const    localname,
     119                 :         const   XMLCh* const    qname
     120                 :     );
     121                 : #if XERCES_VERSION_MAJOR >= 3
     122                 :     void characters( const XMLCh *const chars,
     123                 :                      const XMLSize_t length );
     124                 : #else
     125                 :     void characters( const XMLCh *const chars,
     126                 :                      const unsigned int length );
     127                 : #endif
     128                 : 
     129                 :     void fatalError(const SAXParseException&);
     130                 : 
     131                 :     void startEntity (const XMLCh *const name);
     132                 : 
     133                 :     virtual char*       GetFID(void* attr);
     134                 :     virtual char*       GetAttributes(void* attr);
     135                 : };
     136                 : 
     137                 : #elif defined(HAVE_EXPAT)
     138                 : 
     139                 : #include "ogr_expat.h"
     140                 : 
     141                 : /************************************************************************/
     142                 : /*                           GMLExpatHandler                            */
     143                 : /************************************************************************/
     144                 : class GMLExpatHandler : public GMLHandler
     145              46 : {
     146                 :     XML_Parser m_oParser;
     147                 :     int        m_bStopParsing;
     148                 :     int        m_nDataHandlerCounter;
     149                 : 
     150                 : public:
     151                 :     GMLExpatHandler( GMLReader *poReader, XML_Parser oParser );
     152                 : 
     153                 :     virtual OGRErr      startElement(const char *pszName, void* attr);
     154                 :     virtual OGRErr      endElement(const char *pszName);
     155                 :     virtual OGRErr      dataHandler(const char *data, int nLen);
     156                 : 
     157              23 :     int         HasStoppedParsing() { return m_bStopParsing; }
     158                 : 
     159              23 :     void        ResetDataHandlerCounter() { m_nDataHandlerCounter = 0; }
     160                 :     int         GetDataHandlerCounter() { return m_nDataHandlerCounter; }
     161                 : 
     162                 :     virtual char*       GetFID(void* attr);
     163                 :     virtual char*       GetAttributes(void* attr);
     164                 : };
     165                 : 
     166                 : #endif
     167                 : 
     168                 : /************************************************************************/
     169                 : /*                             GMLReadState                             */
     170                 : /************************************************************************/
     171                 : 
     172                 : class GMLReadState
     173                 : {
     174                 :     void        RebuildPath();
     175                 : 
     176                 : public:
     177                 :     GMLReadState();
     178                 :     ~GMLReadState();
     179                 : 
     180                 :     void        PushPath( const char *pszElement );
     181                 :     void        PopPath();
     182                 : 
     183                 :     int         MatchPath( const char *pszPathInput );
     184                 :     const char  *GetPath() const { return m_pszPath; }
     185                 :     const char  *GetLastComponent() const;
     186                 : 
     187                 :     GMLFeature  *m_poFeature;
     188                 :     GMLReadState *m_poParentState;
     189                 : 
     190                 :     char        *m_pszPath; // element path ... | as separator.
     191                 : 
     192                 :     int         m_nPathLength;
     193                 :     char        **m_papszPathComponents;
     194                 : };
     195                 : 
     196                 : /************************************************************************/
     197                 : /*                              GMLReader                               */
     198                 : /************************************************************************/
     199                 : 
     200                 : class GMLReader : public IGMLReader 
     201                 : {
     202                 : private:
     203                 :     static int    m_bXercesInitialized;
     204                 :     static int    m_nInstanceCount;
     205                 :     int           m_bClassListLocked;
     206                 : 
     207                 :     int         m_nClassCount;
     208                 :     GMLFeatureClass **m_papoClass;
     209                 : 
     210                 :     char          *m_pszFilename;
     211                 : 
     212                 : #if HAVE_XERCES == 1
     213                 :     GMLXercesHandler    *m_poGMLHandler;
     214                 :     SAX2XMLReader *m_poSAXReader;
     215                 :     XMLPScanToken m_oToFill;
     216                 :     GMLFeature   *m_poCompleteFeature;
     217                 : #else
     218                 :     GMLExpatHandler    *m_poGMLHandler;
     219                 :     FILE*         fpGML;
     220                 :     XML_Parser    oParser;
     221                 :     GMLFeature ** ppoFeatureTab;
     222                 :     int           nFeatureTabLength;
     223                 :     int           nFeatureTabIndex;
     224                 : #endif
     225                 :     int           m_bReadStarted;
     226                 : 
     227                 :     GMLReadState *m_poState;
     228                 : 
     229                 :     int           m_bStopParsing;
     230                 : 
     231                 :     int           SetupParser();
     232                 :     void          CleanupParser();
     233                 : 
     234                 : public:
     235                 :                 GMLReader();
     236                 :     virtual     ~GMLReader();
     237                 : 
     238              56 :     int              IsClassListLocked() const { return m_bClassListLocked; }
     239              17 :     void             SetClassListLocked( int bFlag )
     240              17 :         { m_bClassListLocked = bFlag; }
     241                 : 
     242                 :     void             SetSourceFile( const char *pszFilename );
     243                 : 
     244             194 :     int              GetClassCount() const { return m_nClassCount; }
     245                 :     GMLFeatureClass *GetClass( int i ) const;
     246                 :     GMLFeatureClass *GetClass( const char *pszName ) const;
     247                 : 
     248                 :     int              AddClass( GMLFeatureClass *poClass );
     249                 :     void             ClearClasses();
     250                 : 
     251                 :     GMLFeature       *NextFeature();
     252                 : 
     253                 :     int              LoadClasses( const char *pszFile = NULL );
     254                 :     int              SaveClasses( const char *pszFile = NULL );
     255                 : 
     256                 :     int              ParseXSD( const char *pszFile );
     257                 : 
     258                 :     int              PrescanForSchema(int bGetExtents = TRUE );
     259                 :     void             ResetReading();
     260                 : 
     261                 : // --- 
     262                 : 
     263            1583 :     GMLReadState     *GetState() const { return m_poState; }
     264                 :     void             PopState();
     265                 :     void             PushState( GMLReadState * );
     266                 : 
     267                 :     int         IsFeatureElement( const char *pszElement );
     268                 :     int         IsAttributeElement( const char *pszElement );
     269                 : 
     270                 :     void        PushFeature( const char *pszElement, 
     271                 :                              const char *pszFID );
     272                 : 
     273                 :     void        SetFeatureProperty( const char *pszElement,
     274                 :                                     const char *pszValue );
     275                 : 
     276               7 :     int         HasStoppedParsing() { return m_bStopParsing; }
     277                 : 
     278                 : };
     279                 : 
     280                 : #endif /* _CPL_GMLREADERP_H_INCLUDED */

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