Open-ILS/src/c-apps/oils_idl-core.c

   1 #include "oils_idl.h"
   2
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #include <libxml/globals.h>
   6 #include <libxml/xmlerror.h>
   7 #include <libxml/parser.h>
   8 #include <libxml/tree.h>
   9 #include <libxml/debugXML.h>
  10 #include <libxml/xmlmemory.h>
  11
  12 #define PERSIST_NS "http://open-ils.org/spec/opensrf/IDL/persistence/v1"
  13 #define OBJECT_NS "http://open-ils.org/spec/opensrf/IDL/objects/v1"
  14 #define BASE_NS "http://opensrf.org/spec/IDL/base/v1"
  15
  16 xmlDocPtr idlDoc = NULL; // parse and store the IDL here
  17
  18 /* parse and store the IDL here */
  19 osrfHash* idlHash;
  20
  21 osrfHash* oilsIDL() { return idlHash; }
  22 osrfHash* oilsIDLInit( char* idl_filename ) {
  23
  24         if (idlHash) return idlHash;
  25
  26         char* string_tmp = NULL;
  27
  28         idlHash = osrfNewHash();
  29         osrfHash* usrData = NULL;
  30
  31         osrfLogInfo(OSRF_LOG_MARK, "Parsing the IDL XML...");
  32         idlDoc = xmlReadFile( idl_filename, NULL, XML_PARSE_XINCLUDE );
  33
  34         if (!idlDoc) {
  35                 osrfLogError(OSRF_LOG_MARK, "Could not load or parse the IDL XML file!");
  36                 return NULL;
  37         }
  38
  39         osrfLogInfo(OSRF_LOG_MARK, "Initializing the Fieldmapper IDL...");
  40
  41         xmlNodePtr docRoot = xmlDocGetRootElement(idlDoc);
  42         xmlNodePtr kid = docRoot->children;
  43         while (kid) {
  44                 if (!strcmp( (char*)kid->name, "class" )) {
  45
  46                         usrData = osrfNewHash();
  47                         osrfHashSet( usrData, xmlGetProp(kid, BAD_CAST "id"), "classname");
  48                         osrfHashSet( usrData, xmlGetNsProp(kid, BAD_CAST "fieldmapper", BAD_CAST OBJECT_NS), "fieldmapper");
  49                         osrfHashSet( usrData, xmlGetNsProp(kid, BAD_CAST "readonly", BAD_CAST PERSIST_NS), "readonly");
  50
  51                         osrfHashSet( idlHash, usrData, (char*)osrfHashGet(usrData, "classname") );
  52
  53                         string_tmp = NULL;
  54                         if ((string_tmp = (char*)xmlGetNsProp(kid, BAD_CAST "tablename", BAD_CAST PERSIST_NS))) {
  55                                 osrfHashSet(
  56                                         usrData,
  57                                         strdup( string_tmp ),
  58                                         "tablename"
  59                                 );
  60                         }
  61
  62                         string_tmp = NULL;
  63                         if ((string_tmp = (char*)xmlGetNsProp(kid, BAD_CAST "virtual", BAD_CAST PERSIST_NS))) {
  64                                 osrfHashSet(
  65                                         usrData,
  66                                         strdup( string_tmp ),
  67                                         "virtual"
  68                                 );
  69                         }
  70
  71                         osrfStringArray* controller = osrfNewStringArray(0);
  72                         string_tmp = NULL;
  73                         if( (string_tmp = (char*)xmlGetProp(kid, BAD_CAST "controller") )) {
  74                                 char* controller_list = strdup( string_tmp );
  75                                 osrfLogInfo(OSRF_LOG_MARK, "Controller list is %s", string_tmp );
  76
  77                                 if (strlen( controller_list ) > 0) {
  78                                         char* st_tmp;
  79                                         char* _controller_class = strtok_r(controller_list, " ", &st_tmp);
  80                                         osrfStringArrayAdd(controller, strdup(_controller_class));
  81
  82                                         while ((_controller_class = strtok_r(NULL, " ", &st_tmp))) {
  83                                                 osrfStringArrayAdd(controller, strdup(_controller_class));
  84                                         }
  85                                 }
  86                         }
  87                         osrfHashSet( usrData, controller, "controller");
  88
  89
  90                         osrfHash* _tmp;
  91                         osrfHash* links = osrfNewHash();
  92                         osrfHash* fields = osrfNewHash();
  93
  94                         osrfHashSet( usrData, fields, "fields" );
  95                         osrfHashSet( usrData, links, "links" );
  96
  97                         xmlNodePtr _cur = kid->children;
  98
  99                         while (_cur) {
 100
 101                                 if (!strcmp( (char*)_cur->name, "fields" )) {
 102
 103                                         string_tmp = NULL;
 104                                         if( (string_tmp = (char*)xmlGetNsProp(_cur, BAD_CAST "primary", BAD_CAST PERSIST_NS)) ) {
 105                                                 osrfHashSet(
 106                                                         usrData,
 107                                                         strdup( string_tmp ),
 108                                                         "primarykey"
 109                                                 );
 110                                         }
 111
 112                                         string_tmp = NULL;
 113                                         if( (string_tmp = (char*)xmlGetNsProp(_cur, BAD_CAST "sequence", BAD_CAST PERSIST_NS)) ) {
 114                                                 osrfHashSet(
 115                                                         usrData,
 116                                                         strdup( string_tmp ),
 117                                                         "sequence"
 118                                                 );
 119                                         }
 120
 121                                         xmlNodePtr _f = _cur->children;
 122
 123                                         while(_f) {
 124                                                 if (strcmp( (char*)_f->name, "field" )) {
 125                                                         _f = _f->next;
 126                                                         continue;
 127                                                 }
 128
 129                                                 _tmp = osrfNewHash();
 130
 131                                                 string_tmp = NULL;
 132                                                 if( (string_tmp = (char*)xmlGetNsProp(_f, BAD_CAST "array_position", BAD_CAST OBJECT_NS)) ) {
 133                                                         osrfHashSet(
 134                                                                 _tmp,
 135                                                                 strdup( string_tmp ),
 136                                                                 "array_position"
 137                                                         );
 138                                                 }
 139
 140                                                 string_tmp = NULL;
 141                                                 if( (string_tmp = (char*)xmlGetNsProp(_f, BAD_CAST "virtual", BAD_CAST PERSIST_NS)) ) {
 142                                                         osrfHashSet(
 143                                                                 _tmp,
 144                                                                 strdup( string_tmp ),
 145                                                                 "virtual"
 146                                                         );
 147                                                 }
 148
 149                                                 string_tmp = NULL;
 150                                                 if( (string_tmp = (char*)xmlGetNsProp(_f, BAD_CAST "primitive", BAD_CAST PERSIST_NS)) ) {
 151                                                         osrfHashSet(
 152                                                                 _tmp,
 153                                                                 strdup( string_tmp ),
 154                                                                 "primitive"
 155                                                         );
 156                                                 }
 157
 158                                                 string_tmp = NULL;
 159                                                 if( (string_tmp = (char*)xmlGetProp(_f, BAD_CAST "name")) ) {
 160                                                         osrfHashSet(
 161                                                                 _tmp,
 162                                                                 strdup( string_tmp ),
 163                                                                 "name"
 164                                                         );
 165                                                 }
 166
 167                                                 osrfLogInfo(OSRF_LOG_MARK, "Found field %s for class %s", string_tmp, osrfHashGet(usrData, "classname") );
 168
 169                                                 osrfHashSet(
 170                                                         fields,
 171                                                         _tmp,
 172                                                         strdup( string_tmp )
 173                                                 );
 174                                                 _f = _f->next;
 175                                         }
 176                                 }
 177
 178                                 if (!strcmp( (char*)_cur->name, "links" )) {
 179                                         xmlNodePtr _l = _cur->children;
 180
 181                                         while(_l) {
 182                                                 if (strcmp( (char*)_l->name, "link" )) {
 183                                                         _l = _l->next;
 184                                                         continue;
 185                                                 }
 186
 187                                                 _tmp = osrfNewHash();
 188
 189                                                 string_tmp = NULL;
 190                                                 if( (string_tmp = (char*)xmlGetProp(_l, BAD_CAST "reltype")) ) {
 191                                                         osrfHashSet(
 192                                                                 _tmp,
 193                                                                 strdup( string_tmp ),
 194                                                                 "reltype"
 195                                                         );
 196                                                 }
 197                                                 osrfLogInfo(OSRF_LOG_MARK, "Adding link with reltype %s", string_tmp );
 198
 199                                                 string_tmp = NULL;
 200                                                 if( (string_tmp = (char*)xmlGetProp(_l, BAD_CAST "key")) ) {
 201                                                         osrfHashSet(
 202                                                                 _tmp,
 203                                                                 strdup( string_tmp ),
 204                                                                 "key"
 205                                                         );
 206                                                 }
 207                                                 osrfLogInfo(OSRF_LOG_MARK, "Link fkey is %s", string_tmp );
 208
 209                                                 string_tmp = NULL;
 210                                                 if( (string_tmp = (char*)xmlGetProp(_l, BAD_CAST "class")) ) {
 211                                                         osrfHashSet(
 212                                                                 _tmp,
 213                                                                 strdup( string_tmp ),
 214                                                                 "class"
 215                                                         );
 216                                                 }
 217                                                 osrfLogInfo(OSRF_LOG_MARK, "Link fclass is %s", string_tmp );
 218
 219                                                 osrfStringArray* map = osrfNewStringArray(0);
 220
 221                                                 string_tmp = NULL;
 222                                                 if( (string_tmp = (char*)xmlGetProp(_l, BAD_CAST "map") )) {
 223                                                         char* map_list = strdup( string_tmp );
 224                                                         osrfLogInfo(OSRF_LOG_MARK, "Link mapping list is %s", string_tmp );
 225
 226                                                         if (strlen( map_list ) > 0) {
 227                                                                 char* st_tmp;
 228                                                                 char* _map_class = strtok_r(map_list, " ", &st_tmp);
 229                                                                 osrfStringArrayAdd(map, strdup(_map_class));
 230
 231                                                                 while ((_map_class = strtok_r(NULL, " ", &st_tmp))) {
 232                                                                         osrfStringArrayAdd(map, strdup(_map_class));
 233                                                                 }
 234                                                         }
 235                                                 }
 236                                                 osrfHashSet( _tmp, map, "map");
 237
 238                                                 string_tmp = NULL;
 239                                                 if( (string_tmp = (char*)xmlGetProp(_l, BAD_CAST "field")) ) {
 240                                                         osrfHashSet(
 241                                                                 _tmp,
 242                                                                 strdup( string_tmp ),
 243                                                                 "field"
 244                                                         );
 245                                                 }
 246
 247                                                 osrfHashSet(
 248                                                         links,
 249                                                         _tmp,
 250                                                         strdup( string_tmp )
 251                                                 );
 252
 253                                                 osrfLogInfo(OSRF_LOG_MARK, "Found link %s for class %s", string_tmp, osrfHashGet(usrData, "classname") );
 254
 255                                                 _l = _l->next;
 256                                         }
 257                                 }
 258
 259                                 if (!strcmp( (char*)_cur->name, "source_definition" )) {
 260                                         string_tmp = NULL;
 261                                         if( (string_tmp = (char*)xmlNodeGetContent(_cur)) ) {
 262                                                 osrfHashSet(
 263                                                         usrData,
 264                                                         strdup( string_tmp ),
 265                                                         "source_definition"
 266                                                 );
 267                                         }
 268
 269                                 }
 270
 271                                 _cur = _cur->next;
 272                         }
 273                 }
 274
 275                 kid = kid->next;
 276         }
 277
 278         osrfLogInfo(OSRF_LOG_MARK, "...IDL XML parsed");
 279
 280         return idlHash;
 281 }
 282
 283 osrfHash* oilsIDLFindPath( char* path, ... ) {
 284         if(!path || strlen(path) < 1) return NULL;
 285
 286         osrfHash* obj = idlHash;
 287
 288         VA_LIST_TO_STRING(path);
 289         char* buf = VA_BUF;
 290
 291         char* token = NULL;
 292         char* t = buf;
 293         char* tt;
 294
 295         token = strtok_r(t, "/", &tt);
 296         if(!token) return NULL;
 297
 298         do {
 299                 obj = osrfHashGet(obj, token);
 300         } while( (token = strtok_r(NULL, "/", &tt)) && obj);
 301
 302         return obj;
 303 }
 304
 305 int oilsIDL_classIsFieldmapper ( char* classname ) {
 306         if (!classname) return 0;
 307         if(oilsIDLFindPath( "/%s", classname )) return 1;
 308         return 0;
 309 }
 310
 311 int oilsIDL_ntop (char* classname, char* fieldname) {
 312         osrfHash* _pos = NULL;
 313
 314         if (!oilsIDL_classIsFieldmapper(classname)) return -1;
 315         _pos = oilsIDLFindPath( "/%s/fields/%s", classname, fieldname );
 316         if (_pos) return atoi( osrfHashGet(_pos, "array_position") );
 317         return -1;
 318 }
 319
 320 char * oilsIDL_pton (char* classname, int pos) {
 321         char* ret = NULL;
 322         osrfHash* f = NULL;
 323         osrfHash* fields = NULL;
 324         osrfHashIterator* itr = NULL;
 325
 326         if (!oilsIDL_classIsFieldmapper(classname)) return NULL;
 327
 328         fields = oilsIDLFindPath( "/%s/fields", classname );
 329         itr = osrfNewHashIterator( fields );
 330
 331         while ( (f = osrfHashIteratorNext( itr )) ) {
 332                 if ( atoi(osrfHashGet(f, "array_position")) == pos ) {
 333                         ret = strdup(itr->current);
 334                         break;
 335                 }
 336         }
 337
 338         osrfHashIteratorFree( itr );
 339
 340         return ret;
 341 }
 342