OpenSRF/src/gateway/fieldmapper-c-xml-out.pl

   1 #!/usr/bin/perl
   2 use strict; use warnings;
   3 use lib '../../../Open-ILS/src/perlmods/';
   4 use lib '../perlmods/';
   5 use OpenILS::Utils::Fieldmapper;
   6
   7
   8 if(!$ARGV[1]) {
   9         print "usage: $0 <header_file> <source_file>\n";
  10         exit;
  11 }
  12
  13 warn "Generating fieldmapper-c code...\n";
  14
  15
  16 print $ARGV[0] . "\n";
  17 print $ARGV[1] . "\n";
  18
  19 open(HEADER, ">$ARGV[0]");
  20 open(SOURCE, ">$ARGV[1]");
  21
  22
  23 warn "Generating fieldmapper-c code...\n";
  24
  25 my $map = $Fieldmapper::fieldmap;
  26
  27 print HEADER <<C;
  28 #ifndef _TOXML_H_
  29 #define _TOXML_H_
  30
  31 char* json_string_to_xml(char*);
  32
  33 #endif
  34 C
  35
  36 print SOURCE <<C;
  37
  38 #include <string.h>
  39
  40 /* and the JSON parser, so we can read the response we're XMLizing */
  41 #include <string.h>
  42 #include "objson/object.h"
  43 #include "objson/json_parser.h"
  44 #include "opensrf/utils.h"
  45
  46 char* json_string_to_xml(char*);
  47 void _rest_xml_output(growing_buffer*, object*, char*, int);
  48 char * _lookup_fm_field(char*,int);
  49
  50 char* json_string_to_xml(char* content) {
  51         object * obj;
  52         growing_buffer * res_xml;
  53         char * output;
  54         int i;
  55
  56         obj = json_parse_string( content );
  57         res_xml = buffer_init(1024);
  58
  59         if (!obj)
  60                 return NULL;
  61
  62         buffer_add(res_xml, "<response>");
  63
  64         for( i = 0; i!= obj->size; i++ ) {
  65                 _rest_xml_output(res_xml, obj->get_index(obj,i), NULL, 0);
  66         }
  67
  68         buffer_add(res_xml, "</response>");
  69
  70         output = buffer_data(res_xml);
  71         buffer_free(res_xml);
  72
  73         return output;
  74 }
  75
  76 void _rest_xml_output(growing_buffer* buf, object* obj, char * fm_class, int fm_index) {
  77         char * tag;
  78         int i;
  79
  80
  81         if(fm_class) {
  82                 tag = _lookup_fm_field(fm_class,fm_index);
  83         } else {
  84                 tag = strdup("datum");
  85         }
  86
  87         /* add class hints if we have a class name */
  88         if(obj->classname)
  89                 buffer_fadd(buf,"<Fieldmapper hint=\\\"%s\\\">", obj->classname);
  90
  91         /* now add the data */
  92         if(obj->is_null)
  93                 buffer_fadd(buf, "<%s/>",tag);
  94
  95         else if(obj->is_bool && obj->bool_value)
  96                 buffer_fadd(buf, "<%s>true</%s>",tag,tag);
  97
  98         else if(obj->is_bool && ! obj->bool_value)
  99                 buffer_fadd(buf, "<%s>false</%s>",tag,tag);
 100
 101         else if (obj->is_string)
 102                 buffer_fadd(buf,"<%s>%s</%s>",tag,obj->string_data,tag);
 103
 104         else if(obj->is_number)
 105                 buffer_fadd(buf,"<%s>%ld</%s>",tag,obj->num_value,tag);
 106
 107         else if(obj->is_double)
 108                 buffer_fadd(buf,"<%s>%lf</%s>",tag,obj->double_value,tag);
 109
 110
 111         else if (obj->is_array) {
 112                 if(!fm_class)
 113                         buffer_add(buf,"<array>");
 114                 else
 115                         buffer_fadd(buf,"<%s>",tag);
 116
 117                 for( i = 0; i!= obj->size; i++ ) {
 118                         _rest_xml_output(buf, obj->get_index(obj,i), obj->classname, i);
 119                 }
 120
 121                 if(!fm_class)
 122                         buffer_add(buf,"</array>");
 123                 else
 124                         buffer_fadd(buf,"</%s>",tag);
 125
 126         } else if (obj->is_hash) {
 127                 buffer_add(buf,"<hash>");
 128                 object_iterator* itr = new_iterator(obj);
 129                 object_node* tmp;
 130                 while( (tmp = itr->next(itr)) ) {
 131                         buffer_add(buf,"<pair>");
 132                         buffer_fadd(buf,"<key>%s</key>",tmp->key);
 133                         _rest_xml_output(buf, tmp->item, NULL,0);
 134                         buffer_add(buf,"</pair>");
 135                 }
 136                 free_iterator(itr);
 137                 buffer_add(buf,"</hash>");
 138         }
 139
 140
 141         if(obj->classname)
 142                 buffer_add(buf,"</Fieldmapper>");
 143 }
 144
 145 char * _lookup_fm_field(char * class, int pos) {
 146
 147 C
 148
 149 print SOURCE "  if (class == NULL) return NULL;";
 150
 151 for my $object (keys %$map) {
 152
 153         my $short_name                          = $map->{$object}->{hint};
 154
 155         print SOURCE <<"        C";
 156
 157         else if (!strcmp(class, "$short_name")) {
 158                 switch (pos) {
 159         C
 160
 161         for my $field (keys %{$map->{$object}->{fields}}) {
 162                 my $position = $map->{$object}->{fields}->{$field}->{position};
 163
 164                 print SOURCE <<"                C";
 165                         case $position:
 166                                 return strdup("$field");
 167                                 break;
 168                 C
 169         }
 170         print SOURCE "          }\n";
 171         print SOURCE "  }\n";
 172 }
 173 print SOURCE '  return strdup("datum");'."\n";
 174 print SOURCE "}\n";
 175
 176 close HEADER;
 177 close SOURCE;
 178
 179 warn  "done\n";
 180