source/xml/DocumentFile.cpp

   1 // ANNA - Anna is Not Nothingness Anymore                                                         //
   2 //                                                                                                //
   3 // (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo                         //
   4 //                                                                                                //
   5 // See project site at http://redmine.teslayout.com/projects/anna-suite                           //
   6 // See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //
   7
   8
   9 #include <sys/types.h>
  10 #include <sys/stat.h>
  11 #include <fcntl.h>
  12 #include <unistd.h>
  13
  14 #include <anna/core/tracing/Logger.hpp>
  15 #include <anna/core/tracing/TraceMethod.hpp>
  16 #include <anna/config/defines.hpp>
  17 #include <anna/core/functions.hpp>
  18
  19 #include <anna/io/functions.hpp>
  20
  21 #include <libxml/HTMLparser.h>
  22
  23 #include <anna/xml/DocumentFile.hpp>
  24
  25 using namespace std;
  26 using namespace anna;
  27 using namespace anna::xml;
  28
  29 _xmlDoc* DocumentFile::do_initialize(const char* filename)
  30 throw(RuntimeException) {
  31   LOGMETHOD(TraceMethod tf("anna::xml::DocumentFile", "do_initialize", ANNA_FILE_LOCATION));
  32   _xmlDoc* result;
  33   a_filename = filename;
  34   LOGDEBUG(
  35     string msg("xml::DocumentFile::do_initialize | Filename: ");
  36     msg += filename;
  37     Logger::debug(msg, ANNA_FILE_LOCATION);
  38   );
  39
  40   if(io::functions::exists(filename) == false) {
  41     string msg("xml::DocumentFile::do_initialize | File: ");
  42     msg += filename;
  43     msg += " | Not found";
  44     throw RuntimeException(msg, ANNA_FILE_LOCATION);
  45   }
  46
  47   result = xmlParseFile(filename);
  48
  49   if(result == NULL)
  50     throw RuntimeException(functions::asString("Error analyzing XML document: %s", filename), ANNA_FILE_LOCATION);
  51
  52   return result;
  53 }
  54
  55 _xmlDoc* DocumentFile::do_initialize(const anna::DataBlock&)
  56 throw(RuntimeException) {
  57   throw RuntimeException("xml::DocumentFile::do_initialize | Not implemented", ANNA_FILE_LOCATION);
  58   return NULL;
  59 }
  60
  61
  62 const anna::DataBlock& DocumentFile::getContent() const
  63 throw(RuntimeException) {
  64   const anna::DataBlock& result = Document::getContent();
  65
  66   if(result.isEmpty() == false)
  67     return result;
  68
  69   int stream;
  70
  71   if((stream = open(a_filename.c_str(), O_RDONLY)) == -1)
  72     throw RuntimeException(a_filename, errno, ANNA_FILE_LOCATION);
  73
  74   const int size = lseek(stream, 0, SEEK_END);
  75   lseek(stream, 0, SEEK_SET);
  76   char* buffer = new char [size];
  77   ssize_t r = read(stream, buffer, size);
  78   close(stream);
  79   const_cast <DocumentFile*>(this)->setContent(buffer, size);
  80   delete buffer;
  81   return result;
  82 }
  83
  84