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

   1 #!/usr/bin/perl
   2 use strict;
   3 use lib '../perlmods/';
   4
   5 my $map = {};
   6 eval "
   7         use lib '../../../Open-ILS/src/perlmods/';
   8         use OpenILS::Utils::Fieldmapper;
   9 ";
  10 $map = $Fieldmapper::fieldmap unless ($@);
  11
  12
  13 if(!$ARGV[1]) {
  14         print "usage: $0 <header_file> <source_file>\n";
  15         exit;
  16 }
  17
  18 warn "Generating fieldmapper-c code...\n";
  19
  20
  21 print $ARGV[0] . "\n";
  22 print $ARGV[1] . "\n";
  23
  24 open(HEADER, ">$ARGV[0]");
  25 open(SOURCE, ">$ARGV[1]");
  26
  27 warn "Generating fieldmapper-c code...\n";
  28
  29 print HEADER <<C;
  30 #ifndef _TOXML_H_
  31 #define _TOXML_H_
  32
  33 char* json_string_to_xml(char*);
  34
  35 #endif
  36 C
  37
  38 print SOURCE <<C;
  39
  40 #include <string.h>
  41
  42 /* and the JSON parser, so we can read the response we're XMLizing */
  43 #include <string.h>
  44 #include <stdio.h>
  45 #include "objson/object.h"
  46 #include "objson/json_parser.h"
  47 #include "opensrf/utils.h"
  48
  49 char* json_string_to_xml(char*);
  50 void _rest_xml_output(growing_buffer*, object*, char*, int, int);
  51 char * _lookup_fm_field(char*,int);
  52 char* _escape_xml (char*);
  53
  54 char* json_string_to_xml(char* content) {
  55         object * obj;
  56         growing_buffer * res_xml;
  57         char * output;
  58         int i;
  59
  60         obj = json_parse_string( content );
  61         res_xml = buffer_init(1024);
  62
  63         if (!obj)
  64                 return NULL;
  65
  66         buffer_add(res_xml, "<response>");
  67
  68         for( i = 0; i!= obj->size; i++ ) {
  69                 _rest_xml_output(res_xml, obj->get_index(obj,i), NULL, 0,0);
  70         }
  71
  72         buffer_add(res_xml, "</response>");
  73
  74         output = buffer_data(res_xml);
  75         buffer_free(res_xml);
  76
  77         return output;
  78 }
  79
  80 char* _escape_xml (char* text) {
  81         char* out;
  82         growing_buffer* b = buffer_init(256);
  83         int len = strlen(text);
  84         int i;
  85         for (i = 0; i < len; i++) {
  86                 if (text[i] == '&')
  87                         buffer_add(b,"&amp;");
  88                 else if (text[i] == '<')
  89                         buffer_add(b,"&lt;");
  90                 else if (text[i] == '>')
  91                         buffer_add(b,"&gt;");
  92                 else
  93                         buffer_add_char(b,text[i]);
  94         }
  95         out = buffer_data(b);
  96         buffer_free(b);
  97         fprintf(stderr," XXX Escaped string: %s\\n", out);
  98         fflush(stderr);
  99         return out;
 100 }
 101
 102 void _rest_xml_output(growing_buffer* buf, object* obj, char * fm_class, int fm_index, int notag) {
 103         char * tag;
 104         int i;
 105
 106         if (obj->classname)
 107                 notag = 1;
 108
 109         if(fm_class) {
 110                 tag = _lookup_fm_field(fm_class,fm_index);
 111         } else {
 112                 tag = strdup("datum");
 113         }
 114
 115         /* add class hints if we have a class name */
 116         if(obj->classname) {
 117                 if(obj->is_null) {
 118                         buffer_fadd(buf,"<%s><Object class_hint=\\\"%s\\\"/></%s>", tag, obj->classname, tag);
 119                         return;
 120                 } else {
 121                         buffer_fadd(buf,"<%s><Object class_hint=\\\"%s\\\">", tag, obj->classname);
 122                 }
 123         }
 124
 125         /* now add the data */
 126         if(obj->is_null) {
 127                 if (!notag)
 128                         buffer_fadd(buf, "<%s/>",tag);
 129         } else if(obj->is_bool && obj->bool_value) {
 130                 if (notag)
 131                         buffer_add(buf, "true");
 132                 else
 133                         buffer_fadd(buf, "<%s>true</%s>",tag,tag);
 134
 135         } else if(obj->is_bool && ! obj->bool_value) {
 136                 if (notag)
 137                         buffer_add(buf, "false");
 138                 else
 139                         buffer_fadd(buf, "<%s>false</%s>",tag,tag);
 140
 141         } else if (obj->is_string) {
 142                 if (notag) {
 143                         char * t = _escape_xml(obj->string_data);
 144                         buffer_add(buf,t);
 145                         free(t);
 146                 } else {
 147                         char * t = _escape_xml(obj->string_data);
 148                         buffer_fadd(buf,"<%s>%s</%s>",tag,t,tag);
 149                         free(t);
 150                 }
 151
 152         } else if(obj->is_number) {
 153                 if (notag)
 154                         buffer_fadd(buf,"%ld",obj->num_value);
 155                 else
 156                         buffer_fadd(buf,"<%s>%ld</%s>",tag,obj->num_value,tag);
 157
 158         } else if(obj->is_double) {
 159                 if (notag)
 160                         buffer_fadd(buf,"%lf",tag,obj->double_value,tag);
 161                 else
 162                         buffer_fadd(buf,"<%s>%lf</%s>",tag,obj->double_value,tag);
 163
 164
 165         } else if (obj->is_array) {
 166                 if (!notag) {
 167                         if(!fm_class)
 168                                 buffer_add(buf,"<array>");
 169                         else
 170                                 buffer_fadd(buf,"<%s>",tag);
 171                 }
 172
 173                 for( i = 0; i!= obj->size; i++ ) {
 174                         _rest_xml_output(buf, obj->get_index(obj,i), obj->classname, i,0);
 175                 }
 176
 177                 if (!notag) {
 178                         if(!fm_class)
 179                                 buffer_add(buf,"</array>");
 180                         else
 181                                 buffer_fadd(buf,"</%s>",tag);
 182                 }
 183
 184         } else if (obj->is_hash) {
 185
 186                 if (!notag) {
 187                         if(!fm_class)
 188                                 buffer_add(buf,"<hash>");
 189                         else
 190                                 buffer_fadd(buf,"<%s>",tag);
 191                 }
 192
 193                 object_iterator* itr = new_iterator(obj);
 194                 object_node* tmp;
 195                 while( (tmp = itr->next(itr)) ) {
 196                         if (notag) {
 197                                 buffer_fadd(buf,"<%s>",tmp->key);
 198                         } else {
 199                                 buffer_add(buf,"<pair>");
 200                                 buffer_fadd(buf,"<key>%s</key><value>",tmp->key);
 201                         }
 202
 203                         _rest_xml_output(buf, tmp->item, NULL,0,notag);
 204
 205                         if (notag) {
 206                                 buffer_fadd(buf,"</%s>",tmp->key);
 207                         } else {
 208                                 buffer_add(buf,"</value></pair>");
 209                         }
 210                 }
 211                 free_iterator(itr);
 212
 213                 if (!notag) {
 214                         if(!fm_class)
 215                                 buffer_add(buf,"</hash>");
 216                         else
 217                                 buffer_fadd(buf,"</%s>",tag);
 218                 }
 219
 220         }
 221
 222         if (obj->classname)
 223                 buffer_fadd(buf,"</Object></%s>",tag);
 224
 225         free(tag);
 226 }
 227
 228 char * _lookup_fm_field(char * class, int pos) {
 229
 230 C
 231
 232 print SOURCE "  if (class == NULL) return NULL;";
 233
 234 for my $object (keys %$map) {
 235
 236         my $short_name                          = $map->{$object}->{hint};
 237
 238         print SOURCE <<"        C";
 239
 240         else if (!strcmp(class, "$short_name")) {
 241                 switch (pos) {
 242         C
 243
 244         for my $field (keys %{$map->{$object}->{fields}}) {
 245                 my $position = $map->{$object}->{fields}->{$field}->{position};
 246
 247                 print SOURCE <<"                C";
 248                         case $position:
 249                                 return strdup("$field");
 250                                 break;
 251                 C
 252         }
 253         print SOURCE "          }\n";
 254         print SOURCE "  }\n";
 255 }
 256 print SOURCE '  return strdup("datum");'."\n";
 257 print SOURCE "}\n";
 258
 259 close HEADER;
 260 close SOURCE;
 261
 262 warn  "done\n";
 263