1 #include "openils/oils_idl.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>
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 #define REPORTER_NS "http://open-ils.org/spec/opensrf/IDL/reporter/v1"
19 #define PERM_NS "http://open-ils.org/spec/opensrf/IDL/permacrud/v1"
21 static xmlDocPtr idlDoc = NULL; // parse and store the IDL here
23 /* parse and store the IDL here */
24 static osrfHash* idlHash;
26 static void add_std_fld( osrfHash* fields_hash, const char* field_name, unsigned pos );
27 osrfHash* oilsIDL(void) { return idlHash; }
28 osrfHash* oilsIDLInit( const char* idl_filename ) {
30 if (idlHash) return idlHash;
32 char* prop_str = NULL;
34 idlHash = osrfNewHash();
35 osrfHash* class_def_hash = NULL;
37 osrfLogInfo(OSRF_LOG_MARK, "Parsing the IDL XML...");
38 idlDoc = xmlReadFile( idl_filename, NULL, XML_PARSE_XINCLUDE );
41 osrfLogError(OSRF_LOG_MARK, "Could not load or parse the IDL XML file!");
45 osrfLogDebug(OSRF_LOG_MARK, "Initializing the Fieldmapper IDL...");
47 xmlNodePtr docRoot = xmlDocGetRootElement(idlDoc);
48 xmlNodePtr kid = docRoot->children;
50 if (!strcmp( (char*)kid->name, "class" )) {
52 class_def_hash = osrfNewHash();
53 char* current_class_name = (char*) xmlGetProp(kid, BAD_CAST "id");
55 osrfHashSet( class_def_hash, current_class_name, "classname" );
56 osrfHashSet( class_def_hash, xmlGetNsProp(kid, BAD_CAST "fieldmapper", BAD_CAST OBJECT_NS), "fieldmapper" );
57 osrfHashSet( class_def_hash, xmlGetNsProp(kid, BAD_CAST "readonly", BAD_CAST PERSIST_NS), "readonly" );
59 osrfHashSet( idlHash, class_def_hash, current_class_name );
61 if ((prop_str = (char*)xmlGetNsProp(kid, BAD_CAST "tablename", BAD_CAST PERSIST_NS))) {
62 osrfLogDebug(OSRF_LOG_MARK, "Using table '%s' for class %s", prop_str, current_class_name );
70 if ((prop_str = (char*)xmlGetNsProp(kid, BAD_CAST "restrict_primary", BAD_CAST PERSIST_NS))) {
71 osrfLogDebug(OSRF_LOG_MARK, "Delete restriction policy set at '%s' for pkey of class %s", prop_str, current_class_name );
79 if ((prop_str = (char*)xmlGetNsProp(kid, BAD_CAST "virtual", BAD_CAST PERSIST_NS))) {
87 // Tokenize controller attribute into an osrfStringArray
88 prop_str = (char*) xmlGetProp(kid, BAD_CAST "controller");
90 osrfLogDebug(OSRF_LOG_MARK, "Controller list is %s", prop_str );
91 osrfStringArray* controller = osrfStringArrayTokenize( prop_str, ' ' );
93 osrfHashSet( class_def_hash, controller, "controller");
95 osrfHash* current_links_hash = osrfNewHash();
96 osrfHash* current_fields_hash = osrfNewHash();
98 osrfHashSet( class_def_hash, current_fields_hash, "fields" );
99 osrfHashSet( class_def_hash, current_links_hash, "links" );
101 xmlNodePtr _cur = kid->children;
105 if (!strcmp( (char*)_cur->name, "fields" )) {
107 if( (prop_str = (char*)xmlGetNsProp(_cur, BAD_CAST "primary", BAD_CAST PERSIST_NS)) ) {
115 if( (prop_str = (char*)xmlGetNsProp(_cur, BAD_CAST "sequence", BAD_CAST PERSIST_NS)) ) {
123 unsigned int array_pos = 0;
124 char array_pos_buf[ 7 ]; // For up to 1,000,000 fields per class
126 xmlNodePtr _f = _cur->children;
128 if (strcmp( (char*)_f->name, "field" )) {
133 // Get the field name. If it's one of the three standard
134 // fields that we always generate, ignore it.
135 char* field_name = (char*)xmlGetProp(_f, BAD_CAST "name");
137 osrfLogDebug(OSRF_LOG_MARK,
138 "Found field %s for class %s", field_name, current_class_name );
139 if( !strcmp( field_name, "isnew" )
140 || !strcmp( field_name, "ischanged" )
141 || !strcmp( field_name, "isdeleted" ) ) {
147 osrfLogDebug(OSRF_LOG_MARK,
148 "Found field with no name for class %s", current_class_name );
153 osrfHash* field_def_hash = osrfNewHash();
155 // Insert array_position
156 snprintf( array_pos_buf, sizeof( array_pos_buf ), "%u", array_pos++ );
157 osrfHashSet( field_def_hash, strdup( array_pos_buf ), "array_position" );
159 if( (prop_str = (char*)xmlGetNsProp(_f, BAD_CAST "i18n", BAD_CAST PERSIST_NS)) ) {
167 if( (prop_str = (char*)xmlGetNsProp(_f, BAD_CAST "virtual", BAD_CAST PERSIST_NS)) ) {
173 } else { // default to virtual
181 if( (prop_str = (char*)xmlGetNsProp(_f, BAD_CAST "primitive", BAD_CAST PERSIST_NS)) ) {
189 osrfHashSet( field_def_hash, field_name, "name" );
198 // Create three standard, stereotyped virtual fields for every class
199 add_std_fld( current_fields_hash, "isnew", array_pos++ );
200 add_std_fld( current_fields_hash, "ischanged", array_pos++ );
201 add_std_fld( current_fields_hash, "isdeleted", array_pos );
205 if (!strcmp( (char*)_cur->name, "links" )) {
206 xmlNodePtr _l = _cur->children;
209 if (strcmp( (char*)_l->name, "link" )) {
214 osrfHash* link_def_hash = osrfNewHash();
216 if( (prop_str = (char*)xmlGetProp(_l, BAD_CAST "reltype")) ) {
222 osrfLogDebug(OSRF_LOG_MARK, "Adding link with reltype %s", prop_str );
224 osrfLogDebug(OSRF_LOG_MARK, "Adding link with no reltype" );
226 if( (prop_str = (char*)xmlGetProp(_l, BAD_CAST "key")) ) {
232 osrfLogDebug(OSRF_LOG_MARK, "Link fkey is %s", prop_str );
234 osrfLogDebug(OSRF_LOG_MARK, "Link with no fkey" );
236 if( (prop_str = (char*)xmlGetProp(_l, BAD_CAST "class")) ) {
242 osrfLogDebug(OSRF_LOG_MARK, "Link fclass is %s", prop_str );
244 osrfLogDebug(OSRF_LOG_MARK, "Link with no fclass" );
246 // Tokenize map attribute into an osrfStringArray
247 prop_str = (char*) xmlGetProp(_l, BAD_CAST "map");
249 osrfLogDebug(OSRF_LOG_MARK, "Link mapping list is %s", prop_str );
250 osrfStringArray* map = osrfStringArrayTokenize( prop_str, ' ' );
251 osrfHashSet( link_def_hash, map, "map");
254 if( (prop_str = (char*)xmlGetProp(_l, BAD_CAST "field")) ) {
260 osrfLogDebug(OSRF_LOG_MARK, "Link fclass is %s", prop_str );
262 osrfLogDebug(OSRF_LOG_MARK, "Link with no fclass" );
273 /**** Structure of permacrud in memory ****
276 { permission : [ x, y, z ],
277 global_required : "true", -- anything else, or missing, is false
278 local_context : [ f1, f2 ],
279 foreign_context : { class1 : { fkey : local_class_key, field : class1_field, context : [ a, b, c ] }, ...}
281 retrieve : null, -- no perm check, or structure similar to the others
282 update : -- like create
284 delete : -- like create
288 **** Structure of permacrud in memory ****/
290 if (!strcmp( (char*)_cur->name, "permacrud" )) {
291 osrfHash* pcrud = osrfNewHash();
292 osrfHashSet( class_def_hash, pcrud, "permacrud" );
293 xmlNodePtr _l = _cur->children;
296 if (strcmp( (char*)_l->name, "actions" )) {
301 xmlNodePtr _a = _l->children;
304 const char* action_name = (const char*) _a->name;
306 strcmp( action_name, "create" ) &&
307 strcmp( action_name, "retrieve" ) &&
308 strcmp( action_name, "update" ) &&
309 strcmp( action_name, "delete" )
315 osrfLogDebug(OSRF_LOG_MARK, "Found Permacrud action %s for class %s",
316 action_name, current_class_name );
318 osrfHash* action_def_hash = osrfNewHash();
319 osrfHashSet( pcrud, action_def_hash, action_name );
321 // Tokenize permission attribute into an osrfStringArray
322 prop_str = (char*) xmlGetProp(_a, BAD_CAST "permission");
324 osrfLogDebug(OSRF_LOG_MARK,
325 "Permacrud permission list is %s", prop_str );
326 osrfStringArray* map = osrfStringArrayTokenize( prop_str, ' ' );
327 osrfHashSet( action_def_hash, map, "permission");
330 osrfHashSet( action_def_hash,
331 (char*)xmlGetNoNsProp(_a, BAD_CAST "global_required"), "global_required");
333 // Tokenize context_field attribute into an osrfStringArray
334 prop_str = (char*) xmlGetProp(_a, BAD_CAST "context_field");
336 osrfLogDebug(OSRF_LOG_MARK,
337 "Permacrud context_field list is %s", prop_str );
338 map = osrfStringArrayTokenize( prop_str, ' ' );
339 osrfHashSet( action_def_hash, map, "local_context");
342 osrfHash* foreign_context = osrfNewHash();
343 osrfHashSet( action_def_hash, foreign_context, "foreign_context");
345 xmlNodePtr _f = _a->children;
348 if ( strcmp( (char*)_f->name, "context" ) ) {
353 if( (prop_str = (char*)xmlGetNoNsProp(_f, BAD_CAST "link")) ) {
354 osrfLogDebug(OSRF_LOG_MARK,
355 "Permacrud context link definition is %s", prop_str );
357 osrfHash* _tmp_fcontext = osrfNewHash();
359 // Store pointers to elements already stored
360 // from the <link> aggregate
361 osrfHash* _flink = osrfHashGet( current_links_hash, prop_str );
362 osrfHashSet( _tmp_fcontext, osrfHashGet(_flink, "field"), "fkey" );
363 osrfHashSet( _tmp_fcontext, osrfHashGet(_flink, "key"), "field" );
366 if( (prop_str = (char*)xmlGetNoNsProp(_f, BAD_CAST "jump")) )
367 osrfHashSet( _tmp_fcontext, osrfStringArrayTokenize( prop_str, '.' ), "jump" );
370 // Tokenize field attribute into an osrfStringArray
371 char * field_list = (char*) xmlGetProp(_f, BAD_CAST "field");
373 osrfLogDebug(OSRF_LOG_MARK,
374 "Permacrud foreign context field list is %s", field_list );
375 map = osrfStringArrayTokenize( field_list, ' ' );
376 osrfHashSet( _tmp_fcontext, map, "context");
377 xmlFree( field_list );
379 // Insert the new hash into a hash attached to the parent node
380 osrfHashSet( foreign_context, _tmp_fcontext, osrfHashGet( _flink, "class" ) );
384 if( (prop_str = (char*)xmlGetNoNsProp(_f, BAD_CAST "field") )) {
385 char* map_list = prop_str;
386 osrfLogDebug(OSRF_LOG_MARK,
387 "Permacrud local context field list is %s", prop_str );
389 if (strlen( map_list ) > 0) {
391 char* _map_class = strtok_r(map_list, " ", &st_tmp);
393 osrfHashGet( action_def_hash, "local_context"), _map_class);
395 while ((_map_class = strtok_r(NULL, " ", &st_tmp))) {
397 osrfHashGet( action_def_hash, "local_context"), _map_class);
412 if (!strcmp( (char*)_cur->name, "source_definition" )) {
414 if( (content_str = (char*)xmlNodeGetContent(_cur)) ) {
415 osrfLogDebug(OSRF_LOG_MARK, "Using source definition '%s' for class %s",
416 content_str, current_class_name );
433 osrfLogInfo(OSRF_LOG_MARK, "...IDL XML parsed");
438 // Adds a standard virtual field to a fields hash
439 static void add_std_fld( osrfHash* fields_hash, const char* field_name, unsigned pos ) {
440 char array_pos_buf[ 7 ];
441 osrfHash* std_fld_hash = osrfNewHash();
443 snprintf( array_pos_buf, sizeof( array_pos_buf ), "%u", pos );
444 osrfHashSet( std_fld_hash, strdup( array_pos_buf ), "array_position" );
445 osrfHashSet( std_fld_hash, "true", "virtual" );
446 osrfHashSet( std_fld_hash, strdup( field_name ), "name" );
447 osrfHashSet( fields_hash, std_fld_hash, field_name );
451 osrfHash* oilsIDLFindPath( const char* path, ... ) {
452 if(!path || strlen(path) < 1) return NULL;
454 osrfHash* obj = idlHash;
456 VA_LIST_TO_STRING(path);
463 token = strtok_r(t, "/", &tt);
464 if(!token) return NULL;
467 obj = osrfHashGet(obj, token);
468 } while( (token = strtok_r(NULL, "/", &tt)) && obj);
473 static osrfHash* findClassDef( const char* classname ) {
474 if( !classname || !idlHash )
477 return osrfHashGet( idlHash, classname );
480 osrfHash* oilsIDL_links( const char* classname ) {
481 osrfHash* classdef = findClassDef( classname );
483 return osrfHashGet( classdef, "links" );
488 osrfHash* oilsIDL_fields( const char* classname ) {
489 osrfHash* classdef = findClassDef( classname );
491 return osrfHashGet( classdef, "fields" );
496 int oilsIDL_classIsFieldmapper ( const char* classname ) {
497 if( findClassDef( classname ) )
503 // For a given class: return the array_position associated with a
504 // specified field. (or -1 if it doesn't exist)
505 int oilsIDL_ntop (const char* classname, const char* fieldname) {
506 osrfHash* fields_hash = oilsIDL_fields( classname );
508 return -1; // No such class, or no fields for it
510 osrfHash* field_def_hash = osrfHashGet( fields_hash, fieldname );
511 if( !field_def_hash )
512 return -1; // No such field
514 const char* pos_attr = osrfHashGet( field_def_hash, "array_position" );
516 return -1; // No array_position attribute
518 return atoi( pos_attr ); // Return position as int
521 // For a given class: return a copy of the name of the field
522 // at a specified array_position (or NULL if there is none)
523 char * oilsIDL_pton (const char* classname, int pos) {
524 osrfHash* fields_hash = oilsIDL_fields( classname );
526 return NULL; // No such class, or no fields for it
529 osrfHash* field_def_hash = NULL;
530 osrfHashIterator* iter = osrfNewHashIterator( fields_hash );
532 while ( ( field_def_hash = osrfHashIteratorNext( iter ) ) ) {
533 if ( atoi( osrfHashGet( field_def_hash, "array_position" ) ) == pos ) {
534 ret = strdup( osrfHashIteratorKey( iter ) );
539 osrfHashIteratorFree( iter );