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

   1 #include "oils_idl.h"
   2 /*
   3  * vim:noet:ts=4:
   4  */
   5
   6 #include <stdlib.h>
   7 #include <string.h>
   8 #include <libxml/globals.h>
   9 #include <libxml/xmlerror.h>
  10 #include <libxml/parser.h>
  11 #include <libxml/tree.h>
  12 #include <libxml/debugXML.h>
  13 #include <libxml/xmlmemory.h>
  14
  15 #define PERSIST_NS "http://open-ils.org/spec/opensrf/IDL/persistence/v1"
  16 #define OBJECT_NS "http://open-ils.org/spec/opensrf/IDL/objects/v1"
  17 #define BASE_NS "http://opensrf.org/spec/IDL/base/v1"
  18
  19 xmlDocPtr idlDoc = NULL; // parse and store the IDL here
  20
  21 /* parse and store the IDL here */
  22 osrfHash* idlHash;
  23
  24 osrfHash* oilsIDL() { return idlHash; }
  25 osrfHash* oilsIDLInit( char* idl_filename ) {
  26
  27         if (idlHash) return idlHash;
  28
  29         char* string_tmp = NULL;
  30
  31         idlHash = osrfNewHash();
  32         osrfHash* usrData = NULL;
  33
  34         osrfLogInfo(OSRF_LOG_MARK, "Parsing the IDL XML...");
  35         idlDoc = xmlReadFile( idl_filename, NULL, XML_PARSE_XINCLUDE );
  36
  37         if (!idlDoc) {
  38                 osrfLogError(OSRF_LOG_MARK, "Could not load or parse the IDL XML file!");
  39                 return NULL;
  40         }
  41
  42         osrfLogDebug(OSRF_LOG_MARK, "Initializing the Fieldmapper IDL...");
  43
  44         xmlNodePtr docRoot = xmlDocGetRootElement(idlDoc);
  45         xmlNodePtr kid = docRoot->children;
  46         while (kid) {
  47                 if (!strcmp( (char*)kid->name, "class" )) {
  48
  49                         usrData = osrfNewHash();
  50                         osrfHashSet( usrData, xmlGetProp(kid, BAD_CAST "id"), "classname");
  51                         osrfHashSet( usrData, xmlGetNsProp(kid, BAD_CAST "fieldmapper", BAD_CAST OBJECT_NS), "fieldmapper");
  52                         osrfHashSet( usrData, xmlGetNsProp(kid, BAD_CAST "readonly", BAD_CAST PERSIST_NS), "readonly");
  53
  54                         osrfHashSet( idlHash, usrData, (char*)osrfHashGet(usrData, "classname") );
  55
  56                         string_tmp = NULL;
  57                         if ((string_tmp = (char*)xmlGetNsProp(kid, BAD_CAST "tablename", BAD_CAST PERSIST_NS))) {
  58                                 osrfLogDebug(OSRF_LOG_MARK, "Using table '%s' for class %s", string_tmp, osrfHashGet(usrData, "classname") );
  59                                 osrfHashSet(
  60                                         usrData,
  61                                         strdup( string_tmp ),
  62                                         "tablename"
  63                                 );
  64                         }
  65
  66                         string_tmp = NULL;
  67                         if ((string_tmp = (char*)xmlGetNsProp(kid, BAD_CAST "virtual", BAD_CAST PERSIST_NS))) {
  68                                 osrfHashSet(
  69                                         usrData,
  70                                         strdup( string_tmp ),
  71                                         "virtual"
  72                                 );
  73                         }
  74
  75                         osrfStringArray* controller = osrfNewStringArray(0);
  76                         string_tmp = NULL;
  77                         if( (string_tmp = (char*)xmlGetProp(kid, BAD_CAST "controller") )) {
  78                                 char* controller_list = strdup( string_tmp );
  79                                 osrfLogDebug(OSRF_LOG_MARK, "Controller list is %s", string_tmp );
  80
  81                                 if (strlen( controller_list ) > 0) {
  82                                         char* st_tmp;
  83                                         char* _controller_class = strtok_r(controller_list, " ", &st_tmp);
  84                                         osrfStringArrayAdd(controller, strdup(_controller_class));
  85
  86                                         while ((_controller_class = strtok_r(NULL, " ", &st_tmp))) {
  87                                                 osrfStringArrayAdd(controller, strdup(_controller_class));
  88                                         }
  89                                 }
  90                         }
  91                         osrfHashSet( usrData, controller, "controller");
  92
  93
  94                         osrfHash* _tmp;
  95                         osrfHash* links = osrfNewHash();
  96                         osrfHash* fields = osrfNewHash();
  97
  98                         osrfHashSet( usrData, fields, "fields" );
  99                         osrfHashSet( usrData, links, "links" );
 100
 101                         xmlNodePtr _cur = kid->children;
 102
 103                         while (_cur) {
 104
 105                                 if (!strcmp( (char*)_cur->name, "fields" )) {
 106
 107                                         string_tmp = NULL;
 108                                         if( (string_tmp = (char*)xmlGetNsProp(_cur, BAD_CAST "primary", BAD_CAST PERSIST_NS)) ) {
 109                                                 osrfHashSet(
 110                                                         usrData,
 111                                                         strdup( string_tmp ),
 112                                                         "primarykey"
 113                                                 );
 114                                         }
 115
 116                                         string_tmp = NULL;
 117                                         if( (string_tmp = (char*)xmlGetNsProp(_cur, BAD_CAST "sequence", BAD_CAST PERSIST_NS)) ) {
 118                                                 osrfHashSet(
 119                                                         usrData,
 120                                                         strdup( string_tmp ),
 121                                                         "sequence"
 122                                                 );
 123                                         }
 124
 125                                         xmlNodePtr _f = _cur->children;
 126
 127                                         while(_f) {
 128                                                 if (strcmp( (char*)_f->name, "field" )) {
 129                                                         _f = _f->next;
 130                                                         continue;
 131                                                 }
 132
 133                                                 _tmp = osrfNewHash();
 134
 135                                                 string_tmp = NULL;
 136                                                 if( (string_tmp = (char*)xmlGetNsProp(_f, BAD_CAST "array_position", BAD_CAST OBJECT_NS)) ) {
 137                                                         osrfHashSet(
 138                                                                 _tmp,
 139                                                                 strdup( string_tmp ),
 140                                                                 "array_position"
 141                                                         );
 142                                                 }
 143
 144                                                 string_tmp = NULL;
 145                                                 if( (string_tmp = (char*)xmlGetNsProp(_f, BAD_CAST "virtual", BAD_CAST PERSIST_NS)) ) {
 146                                                         osrfHashSet(
 147                                                                 _tmp,
 148                                                                 strdup( string_tmp ),
 149                                                                 "virtual"
 150                                                         );
 151                                                 }
 152
 153                                                 string_tmp = NULL;
 154                                                 if( (string_tmp = (char*)xmlGetNsProp(_f, BAD_CAST "primitive", BAD_CAST PERSIST_NS)) ) {
 155                                                         osrfHashSet(
 156                                                                 _tmp,
 157                                                                 strdup( string_tmp ),
 158                                                                 "primitive"
 159                                                         );
 160                                                 }
 161
 162                                                 string_tmp = NULL;
 163                                                 if( (string_tmp = (char*)xmlGetProp(_f, BAD_CAST "name")) ) {
 164                                                         osrfHashSet(
 165                                                                 _tmp,
 166                                                                 strdup( string_tmp ),
 167                                                                 "name"
 168                                                         );
 169                                                 }
 170
 171                                                 osrfLogDebug(OSRF_LOG_MARK, "Found field %s for class %s", string_tmp, osrfHashGet(usrData, "classname") );
 172
 173                                                 osrfHashSet(
 174                                                         fields,
 175                                                         _tmp,
 176                                                         strdup( string_tmp )
 177                                                 );
 178                                                 _f = _f->next;
 179                                         }
 180                                 }
 181
 182                                 if (!strcmp( (char*)_cur->name, "links" )) {
 183                                         xmlNodePtr _l = _cur->children;
 184
 185                                         while(_l) {
 186                                                 if (strcmp( (char*)_l->name, "link" )) {
 187                                                         _l = _l->next;
 188                                                         continue;
 189                                                 }
 190
 191                                                 _tmp = osrfNewHash();
 192
 193                                                 string_tmp = NULL;
 194                                                 if( (string_tmp = (char*)xmlGetProp(_l, BAD_CAST "reltype")) ) {
 195                                                         osrfHashSet(
 196                                                                 _tmp,
 197                                                                 strdup( string_tmp ),
 198                                                                 "reltype"
 199                                                         );
 200                                                 }
 201                                                 osrfLogDebug(OSRF_LOG_MARK, "Adding link with reltype %s", string_tmp );
 202
 203                                                 string_tmp = NULL;
 204                                                 if( (string_tmp = (char*)xmlGetProp(_l, BAD_CAST "key")) ) {
 205                                                         osrfHashSet(
 206                                                                 _tmp,
 207                                                                 strdup( string_tmp ),
 208                                                                 "key"
 209                                                         );
 210                                                 }
 211                                                 osrfLogDebug(OSRF_LOG_MARK, "Link fkey is %s", string_tmp );
 212
 213                                                 string_tmp = NULL;
 214                                                 if( (string_tmp = (char*)xmlGetProp(_l, BAD_CAST "class")) ) {
 215                                                         osrfHashSet(
 216                                                                 _tmp,
 217                                                                 strdup( string_tmp ),
 218                                                                 "class"
 219                                                         );
 220                                                 }
 221                                                 osrfLogDebug(OSRF_LOG_MARK, "Link fclass is %s", string_tmp );
 222
 223                                                 osrfStringArray* map = osrfNewStringArray(0);
 224
 225                                                 string_tmp = NULL;
 226                                                 if( (string_tmp = (char*)xmlGetProp(_l, BAD_CAST "map") )) {
 227                                                         char* map_list = strdup( string_tmp );
 228                                                         osrfLogDebug(OSRF_LOG_MARK, "Link mapping list is %s", string_tmp );
 229
 230                                                         if (strlen( map_list ) > 0) {
 231                                                                 char* st_tmp;
 232                                                                 char* _map_class = strtok_r(map_list, " ", &st_tmp);
 233                                                                 osrfStringArrayAdd(map, strdup(_map_class));
 234
 235                                                                 while ((_map_class = strtok_r(NULL, " ", &st_tmp))) {
 236                                                                         osrfStringArrayAdd(map, strdup(_map_class));
 237                                                                 }
 238                                                         }
 239                                                 }
 240                                                 osrfHashSet( _tmp, map, "map");
 241
 242                                                 string_tmp = NULL;
 243                                                 if( (string_tmp = (char*)xmlGetProp(_l, BAD_CAST "field")) ) {
 244                                                         osrfHashSet(
 245                                                                 _tmp,
 246                                                                 strdup( string_tmp ),
 247                                                                 "field"
 248                                                         );
 249                                                 }
 250
 251                                                 osrfHashSet(
 252                                                         links,
 253                                                         _tmp,
 254                                                         strdup( string_tmp )
 255                                                 );
 256
 257                                                 osrfLogDebug(OSRF_LOG_MARK, "Found link %s for class %s", string_tmp, osrfHashGet(usrData, "classname") );
 258
 259                                                 _l = _l->next;
 260                                         }
 261                                 }
 262
 263                                 if (!strcmp( (char*)_cur->name, "source_definition" )) {
 264                                         string_tmp = NULL;
 265                                         if( (string_tmp = (char*)xmlNodeGetContent(_cur)) ) {
 266                                                 osrfLogDebug(OSRF_LOG_MARK, "Using source definition '%s' for class %s", string_tmp, osrfHashGet(usrData, "classname") );
 267                                                 osrfHashSet(
 268                                                         usrData,
 269                                                         strdup( string_tmp ),
 270                                                         "source_definition"
 271                                                 );
 272                                         }
 273
 274                                 }
 275
 276                                 _cur = _cur->next;
 277                         }
 278                 }
 279
 280                 kid = kid->next;
 281         }
 282
 283         osrfLogInfo(OSRF_LOG_MARK, "...IDL XML parsed");
 284
 285         return idlHash;
 286 }
 287
 288 osrfHash* oilsIDLFindPath( char* path, ... ) {
 289         if(!path || strlen(path) < 1) return NULL;
 290
 291         osrfHash* obj = idlHash;
 292
 293         VA_LIST_TO_STRING(path);
 294         char* buf = VA_BUF;
 295
 296         char* token = NULL;
 297         char* t = buf;
 298         char* tt;
 299
 300         token = strtok_r(t, "/", &tt);
 301         if(!token) return NULL;
 302
 303         do {
 304                 obj = osrfHashGet(obj, token);
 305         } while( (token = strtok_r(NULL, "/", &tt)) && obj);
 306
 307         return obj;
 308 }
 309
 310 int oilsIDL_classIsFieldmapper ( char* classname ) {
 311         if (!classname) return 0;
 312         if(oilsIDLFindPath( "/%s", classname )) return 1;
 313         return 0;
 314 }
 315
 316 int oilsIDL_ntop (char* classname, char* fieldname) {
 317         osrfHash* _pos = NULL;
 318
 319         if (!oilsIDL_classIsFieldmapper(classname)) return -1;
 320         _pos = oilsIDLFindPath( "/%s/fields/%s", classname, fieldname );
 321         if (_pos) return atoi( osrfHashGet(_pos, "array_position") );
 322         return -1;
 323 }
 324
 325 char * oilsIDL_pton (char* classname, int pos) {
 326         char* ret = NULL;
 327         osrfHash* f = NULL;
 328         osrfHash* fields = NULL;
 329         osrfHashIterator* itr = NULL;
 330
 331         if (!oilsIDL_classIsFieldmapper(classname)) return NULL;
 332
 333         fields = oilsIDLFindPath( "/%s/fields", classname );
 334         itr = osrfNewHashIterator( fields );
 335
 336         while ( (f = osrfHashIteratorNext( itr )) ) {
 337                 if ( atoi(osrfHashGet(f, "array_position")) == pos ) {
 338                         ret = strdup(itr->current);
 339                         break;
 340                 }
 341         }
 342
 343         osrfHashIteratorFree( itr );
 344
 345         return ret;
 346 }
 347