zypp/parser/RepoindexFileReader.cc

   1 /*---------------------------------------------------------------------\
   2 |                          ____ _   __ __ ___                          |
   3 |                         |__  / \ / / . \ . \                         |
   4 |                           / / \ V /|  _/  _/                         |
   5 |                          / /__ | | | | | |                           |
   6 |                         /_____||_| |_| |_|                           |
   7 |                                                                      |
   8 \---------------------------------------------------------------------*/
   9 /** \file zypp/parser/yum/RepoindexFileReader.cc
  10  * Implementation of repoindex.xml file reader.
  11  */
  12 #include <iostream>
  13
  14 #include "zypp/base/String.h"
  15 #include "zypp/base/Logger.h"
  16
  17 #include "zypp/Pathname.h"
  18 #include "zypp/parser/xml/Reader.h"
  19
  20 #include "zypp/parser/RepoindexFileReader.h"
  21
  22 #undef ZYPP_BASE_LOGGER_LOGGROUP
  23 #define ZYPP_BASE_LOGGER_LOGGROUP "parser"
  24
  25 using namespace std;
  26 using namespace zypp::xml;
  27
  28 namespace zypp
  29 {
  30   namespace parser
  31   {
  32
  33
  34   ///////////////////////////////////////////////////////////////////////
  35   //
  36   //  CLASS NAME : RepoindexFileReader::Impl
  37   //
  38   class RepoindexFileReader::Impl : private base::NonCopyable
  39   {
  40   public:
  41     /**
  42      * CTOR
  43      *
  44      * \see RepoindexFileReader::RepoindexFileReader(Pathname,ProcessResource)
  45      */
  46     Impl(const Pathname &repoindex_file, const ProcessResource & callback);
  47
  48     /**
  49      * Callback provided to the XML parser.
  50      */
  51     bool consumeNode( Reader & reader_r );
  52
  53
  54   private:
  55     /** Function for processing collected data. Passed-in through constructor. */
  56     ProcessResource _callback;
  57   };
  58   ///////////////////////////////////////////////////////////////////////
  59
  60   RepoindexFileReader::Impl::Impl(
  61       const Pathname &repoindex_file, const ProcessResource & callback)
  62     : _callback(callback)
  63   {
  64     Reader reader( repoindex_file );
  65     MIL << "Reading " << repoindex_file << endl;
  66     reader.foreachNode( bind( &RepoindexFileReader::Impl::consumeNode, this, _1 ) );
  67   }
  68
  69   // --------------------------------------------------------------------------
  70
  71   /*
  72    * xpath and multiplicity of processed nodes are included in the code
  73    * for convenience:
  74    *
  75    * // xpath: <xpath> (?|*|+)
  76    *
  77    * if multiplicity is ommited, then the node has multiplicity 'one'.
  78    */
  79
  80   // --------------------------------------------------------------------------
  81
  82   bool RepoindexFileReader::Impl::consumeNode( Reader & reader_r )
  83   {
  84     if ( reader_r->nodeType() == XML_READER_TYPE_ELEMENT )
  85     {
  86       // xpath: /repoindex
  87       if ( reader_r->name() == "repoindex" )
  88       {
  89         return true;
  90       }
  91
  92       // xpath: /repoindex/data (+)
  93       if ( reader_r->name() == "repo" )
  94       {
  95         RepoInfo info;
  96         info.setPath(Pathname(string("/repo/")+reader_r->getAttribute("path").asString()));
  97         info.setAlias(reader_r->getAttribute("alias").asString());
  98         info.setType(repo::RepoType::RPMMD_e); //TODO hardwired rpmmd???
  99         XmlString s = reader_r->getAttribute("name");
 100         if (s.get()) //name setted so also set it
 101           info.setName(s.asString());
 102         //ignore rest
 103         _callback(info);
 104         return true;
 105       }
 106     }
 107
 108     return true;
 109   }
 110
 111
 112   ///////////////////////////////////////////////////////////////////
 113   //
 114   //  CLASS NAME : RepoindexFileReader
 115   //
 116   ///////////////////////////////////////////////////////////////////
 117
 118   RepoindexFileReader::RepoindexFileReader(
 119       const Pathname & repoindex_file, const ProcessResource & callback)
 120     :
 121       _pimpl(new Impl(repoindex_file, callback))
 122   {}
 123
 124   RepoindexFileReader::~RepoindexFileReader()
 125   {}
 126
 127
 128   } // ns parser
 129 } // ns zypp
 130
 131 // vim: set ts=2 sts=2 sw=2 et ai: