src/srw.c

   1 /*
   2  * Copyright (C) 1995-2005, Index Data ApS
   3  * See the file LICENSE for details.
   4  *
   5  * $Id: srw.c,v 1.34 2005-02-04 20:27:19 adam Exp $
   6  */
   7 /**
   8  * \file srw.c
   9  * \brief Implements SRW/SRU package encoding and decoding
  10  */
  11
  12 #include <yaz/srw.h>
  13
  14 #if HAVE_XML2
  15 #include <libxml/parser.h>
  16 #include <libxml/tree.h>
  17
  18 static void add_XML_n(xmlNodePtr ptr, const char *elem, char *val, int len)
  19 {
  20     if (val)
  21     {
  22         xmlDocPtr doc = xmlParseMemory(val,len);
  23         if (doc)
  24         {
  25             xmlNodePtr c = xmlNewChild(ptr, 0, elem, 0);
  26             xmlNodePtr t = xmlDocGetRootElement(doc);
  27             xmlAddChild(c, xmlCopyNode(t,1));
  28             xmlFreeDoc(doc);
  29         }
  30     }
  31 }
  32
  33 xmlNodePtr add_xsd_string_n(xmlNodePtr ptr, const char *elem, const char *val,
  34                             int len)
  35 {
  36     if (val)
  37     {
  38         xmlNodePtr c = xmlNewChild(ptr, 0, elem, 0);
  39         xmlNodePtr t = xmlNewTextLen(val, len);
  40         xmlAddChild(c, t);
  41         return t;
  42     }
  43     return 0;
  44 }
  45
  46 xmlNodePtr add_xsd_string(xmlNodePtr ptr, const char *elem, const char *val)
  47 {
  48     if (val)
  49         return xmlNewTextChild(ptr, 0, elem, val);
  50     return 0;
  51 }
  52
  53 static void add_xsd_integer(xmlNodePtr ptr, const char *elem, const int *val)
  54 {
  55     if (val)
  56     {
  57         char str[30];
  58         sprintf(str, "%d", *val);
  59         xmlNewTextChild(ptr, 0, elem, str);
  60     }
  61 }
  62
  63 static int match_element(xmlNodePtr ptr, const char *elem)
  64 {
  65     if (ptr->type == XML_ELEMENT_NODE && !strcmp(ptr->name, elem))
  66         return 1;
  67     return 0;
  68 }
  69
  70 #define CHECK_TYPE 0
  71
  72 static int match_xsd_string_n(xmlNodePtr ptr, const char *elem, ODR o,
  73                               char **val, int *len)
  74 {
  75 #if CHECK_TYPE
  76     struct _xmlAttr *attr;
  77 #endif
  78     if (!match_element(ptr, elem))
  79         return 0;
  80 #if CHECK_TYPE
  81     for (attr = ptr->properties; attr; attr = attr->next)
  82         if (!strcmp(attr->name, "type") &&
  83             attr->children && attr->children->type == XML_TEXT_NODE)
  84         {
  85             const char *t = strchr(attr->children->content, ':');
  86             if (t)
  87                 t = t + 1;
  88             else
  89                 t = attr->children->content;
  90             if (!strcmp(t, "string"))
  91                 break;
  92         }
  93     if (!attr)
  94         return 0;
  95 #endif
  96     ptr = ptr->children;
  97     if (!ptr || ptr->type != XML_TEXT_NODE)
  98     {
  99         *val = "";
 100         return 1;
 101     }
 102     *val = odr_strdup(o, ptr->content);
 103     if (len)
 104         *len = strlen(ptr->content);
 105     return 1;
 106 }
 107
 108
 109 static int match_xsd_string(xmlNodePtr ptr, const char *elem, ODR o,
 110                             char **val)
 111 {
 112     return match_xsd_string_n(ptr, elem, o, val, 0);
 113 }
 114
 115 static int match_xsd_XML_n(xmlNodePtr ptr, const char *elem, ODR o,
 116                            char **val, int *len)
 117 {
 118     xmlBufferPtr buf;
 119
 120     if (!match_element(ptr, elem))
 121         return 0;
 122     ptr = ptr->children;
 123     while (ptr && (ptr->type == XML_TEXT_NODE || ptr->type == XML_COMMENT_NODE))
 124         ptr = ptr->next;
 125     if (!ptr)
 126         return 0;
 127     buf = xmlBufferCreate();
 128
 129     xmlNodeDump(buf, ptr->doc, ptr, 0, 0);
 130
 131     *val = odr_malloc(o, buf->use+1);
 132     memcpy (*val, buf->content, buf->use);
 133     (*val)[buf->use] = '\0';
 134
 135     if (len)
 136         *len = buf->use;
 137
 138     xmlBufferFree(buf);
 139
 140     return 1;
 141 }
 142
 143 static int match_xsd_integer(xmlNodePtr ptr, const char *elem, ODR o, int **val)
 144 {
 145 #if CHECK_TYPE
 146     struct _xmlAttr *attr;
 147 #endif
 148     if (!match_element(ptr, elem))
 149         return 0;
 150 #if CHECK_TYPE
 151     for (attr = ptr->properties; attr; attr = attr->next)
 152         if (!strcmp(attr->name, "type") &&
 153             attr->children && attr->children->type == XML_TEXT_NODE)
 154         {
 155             const char *t = strchr(attr->children->content, ':');
 156             if (t)
 157                 t = t + 1;
 158             else
 159                 t = attr->children->content;
 160             if (!strcmp(t, "integer"))
 161                 break;
 162         }
 163     if (!attr)
 164         return 0;
 165 #endif
 166     ptr = ptr->children;
 167     if (!ptr || ptr->type != XML_TEXT_NODE)
 168         return 0;
 169     *val = odr_intdup(o, atoi(ptr->content));
 170     return 1;
 171 }
 172
 173 static int yaz_srw_record(ODR o, xmlNodePtr pptr, Z_SRW_record *rec,
 174                           void *client_data, const char *ns)
 175 {
 176     if (o->direction == ODR_DECODE)
 177     {
 178         int pack = Z_SRW_recordPacking_string;
 179         xmlNodePtr ptr;
 180         rec->recordSchema = 0;
 181         rec->recordData_buf = 0;
 182         rec->recordData_len = 0;
 183         rec->recordPosition = 0;
 184         for (ptr = pptr->children; ptr; ptr = ptr->next)
 185         {
 186             char *spack = 0;
 187
 188             if (match_xsd_string(ptr, "recordSchema", o,
 189                                  &rec->recordSchema))
 190                 ;
 191             else if (match_xsd_string(ptr, "recordPacking", o, &spack))
 192             {
 193                 if (spack && !strcmp(spack, "xml"))
 194                     pack = Z_SRW_recordPacking_XML;
 195                 if (spack && !strcmp(spack, "string"))
 196                     pack = Z_SRW_recordPacking_string;
 197             }
 198             else if (match_xsd_integer(ptr, "recordPosition", o,
 199                                        &rec->recordPosition))
 200                 ;
 201             else
 202             {
 203                 if (pack == Z_SRW_recordPacking_XML)
 204                     match_xsd_XML_n(ptr, "recordData", o,
 205                                     &rec->recordData_buf,
 206                                     &rec->recordData_len);
 207                 if (pack == Z_SRW_recordPacking_string)
 208                     match_xsd_string_n(ptr, "recordData", o,
 209                                        &rec->recordData_buf,
 210                                        &rec->recordData_len);
 211             }
 212         }
 213         rec->recordPacking = pack;
 214     }
 215     else if (o->direction == ODR_ENCODE)
 216     {
 217         xmlNodePtr ptr = pptr;
 218         add_xsd_string(ptr, "recordSchema", rec->recordSchema);
 219         switch(rec->recordPacking)
 220         {
 221         case Z_SRW_recordPacking_string:
 222             add_xsd_string(ptr, "recordPacking", "string");
 223             add_xsd_string_n(ptr, "recordData", rec->recordData_buf,
 224                              rec->recordData_len);
 225             break;
 226         case Z_SRW_recordPacking_XML:
 227             add_xsd_string(ptr, "recordPacking", "xml");
 228             add_XML_n(ptr, "recordData", rec->recordData_buf,
 229                       rec->recordData_len);
 230             break;
 231         }
 232         add_xsd_integer(ptr, "recordPosition", rec->recordPosition);
 233     }
 234     return 0;
 235 }
 236
 237 static int yaz_srw_records(ODR o, xmlNodePtr pptr, Z_SRW_record **recs,
 238                            int *num, void *client_data, const char *ns)
 239 {
 240     if (o->direction == ODR_DECODE)
 241     {
 242         int i;
 243         xmlNodePtr ptr;
 244         *num = 0;
 245         for (ptr = pptr->children; ptr; ptr = ptr->next)
 246         {
 247             if (ptr->type == XML_ELEMENT_NODE &&
 248                 !strcmp(ptr->name, "record"))
 249                 (*num)++;
 250         }
 251         if (!*num)
 252             return 1;
 253         *recs = (Z_SRW_record *) odr_malloc(o, *num * sizeof(**recs));
 254         for (i = 0, ptr = pptr->children; ptr; ptr = ptr->next)
 255         {
 256             if (ptr->type == XML_ELEMENT_NODE &&
 257                 !strcmp(ptr->name, "record"))
 258             {
 259                 yaz_srw_record(o, ptr, (*recs)+i, client_data, ns);
 260                 i++;
 261             }
 262         }
 263     }
 264     else if (o->direction == ODR_ENCODE)
 265     {
 266         int i;
 267         for (i = 0; i < *num; i++)
 268         {
 269             xmlNodePtr rptr = xmlNewChild(pptr, 0, "record", 0);
 270             yaz_srw_record(o, rptr, (*recs)+i, client_data, ns);
 271         }
 272     }
 273     return 0;
 274 }
 275
 276 static int yaz_srw_diagnostics(ODR o, xmlNodePtr pptr, Z_SRW_diagnostic **recs,
 277                                int *num, void *client_data, const char *ns)
 278 {
 279     if (o->direction == ODR_DECODE)
 280     {
 281         int i;
 282         xmlNodePtr ptr;
 283         *num = 0;
 284         for (ptr = pptr->children; ptr; ptr = ptr->next)
 285         {
 286             if (ptr->type == XML_ELEMENT_NODE &&
 287                 !strcmp(ptr->name, "diagnostic"))
 288                 (*num)++;
 289         }
 290         if (!*num)
 291             return 1;
 292         *recs = (Z_SRW_diagnostic *) odr_malloc(o, *num * sizeof(**recs));
 293         for (i = 0; i < *num; i++)
 294         {
 295             (*recs)[i].uri = 0;
 296             (*recs)[i].details = 0;
 297             (*recs)[i].message = 0;
 298         }
 299         for (i = 0, ptr = pptr->children; ptr; ptr = ptr->next)
 300         {
 301             if (ptr->type == XML_ELEMENT_NODE &&
 302                 !strcmp(ptr->name, "diagnostic"))
 303             {
 304                 xmlNodePtr rptr;
 305                 (*recs)[i].uri = 0;
 306                 (*recs)[i].details = 0;
 307                 (*recs)[i].message = 0;
 308                 for (rptr = ptr->children; rptr; rptr = rptr->next)
 309                 {
 310                     if (match_xsd_string(rptr, "uri", o,
 311                                          &(*recs)[i].uri))
 312                         ;
 313                     else if (match_xsd_string(rptr, "details", o,
 314                                               &(*recs)[i].details))
 315                         ;
 316                     else if (match_xsd_string(rptr, "message", o,
 317                                               &(*recs)[i].message))
 318                         ;
 319                 }
 320                 i++;
 321             }
 322         }
 323     }
 324     else if (o->direction == ODR_ENCODE)
 325     {
 326         int i;
 327         xmlNsPtr ns_diag =
 328             xmlNewNs(pptr, "http://www.loc.gov/zing/srw/diagnostic/", 0);
 329         for (i = 0; i < *num; i++)
 330         {
 331             const char *std_diag = "info:srw/diagnostic/1/";
 332             xmlNodePtr rptr = xmlNewChild(pptr, ns_diag, "diagnostic", 0);
 333             add_xsd_string(rptr, "uri", (*recs)[i].uri);
 334             if ((*recs)[i].message)
 335                 add_xsd_string(rptr, "message", (*recs)[i].message);
 336             else if ((*recs)[i].uri &&
 337                      !strncmp((*recs)[i].uri, std_diag, strlen(std_diag)))
 338             {
 339                 int no = atoi((*recs)[i].uri + strlen(std_diag));
 340                 const char *message = yaz_diag_srw_str(no);
 341                 if (message)
 342                     add_xsd_string(rptr, "message", message);
 343             }
 344             add_xsd_string(rptr, "details", (*recs)[i].details);
 345         }
 346     }
 347     return 0;
 348 }
 349
 350 static int yaz_srw_term(ODR o, xmlNodePtr pptr, Z_SRW_scanTerm *term,
 351                         void *client_data, const char *ns)
 352 {
 353     if (o->direction == ODR_DECODE)
 354     {
 355         xmlNodePtr ptr;
 356         term->value = 0;
 357         term->numberOfRecords = 0;
 358         term->displayTerm = 0;
 359         term->whereInList = 0;
 360         for (ptr = pptr->children; ptr; ptr = ptr->next)
 361         {
 362             if (match_xsd_string(ptr, "value", o,  &term->value))
 363                 ;
 364             else if (match_xsd_integer(ptr, "numberOfRecords", o,
 365                                    &term->numberOfRecords))
 366                 ;
 367             else if (match_xsd_string(ptr, "displayTerm", o,
 368                                       &term->displayTerm))
 369                 ;
 370             else if (match_xsd_string(ptr, "whereInList", o,
 371                                       &term->whereInList))
 372                 ;
 373         }
 374     }
 375     else if (o->direction == ODR_ENCODE)
 376     {
 377         xmlNodePtr ptr = pptr;
 378         add_xsd_string(ptr, "value", term->value);
 379         add_xsd_integer(ptr, "numberOfRecords", term->numberOfRecords);
 380         add_xsd_string(ptr, "displayTerm", term->displayTerm);
 381         add_xsd_string(ptr, "whereInList", term->whereInList);
 382     }
 383     return 0;
 384 }
 385
 386 static int yaz_srw_terms(ODR o, xmlNodePtr pptr, Z_SRW_scanTerm **terms,
 387                          int *num, void *client_data, const char *ns)
 388 {
 389     if (o->direction == ODR_DECODE)
 390     {
 391         int i;
 392         xmlNodePtr ptr;
 393         *num = 0;
 394         for (ptr = pptr->children; ptr; ptr = ptr->next)
 395         {
 396             if (ptr->type == XML_ELEMENT_NODE &&
 397                 !strcmp(ptr->name, "term"))
 398                 (*num)++;
 399         }
 400         if (!*num)
 401             return 1;
 402         *terms = (Z_SRW_scanTerm *) odr_malloc(o, *num * sizeof(**terms));
 403         for (i = 0, ptr = pptr->children; ptr; ptr = ptr->next, i++)
 404         {
 405             if (ptr->type == XML_ELEMENT_NODE &&
 406                 !strcmp(ptr->name, "term"))
 407                 yaz_srw_term(o, ptr, (*terms)+i, client_data, ns);
 408         }
 409     }
 410     else if (o->direction == ODR_ENCODE)
 411     {
 412         int i;
 413         for (i = 0; i < *num; i++)
 414         {
 415             xmlNodePtr rptr = xmlNewChild(pptr, 0, "term", 0);
 416             yaz_srw_term(o, rptr, (*terms)+i, client_data, ns);
 417         }
 418     }
 419     return 0;
 420 }
 421
 422 int yaz_srw_codec(ODR o, void * vptr, Z_SRW_PDU **handler_data,
 423                   void *client_data, const char *ns)
 424 {
 425     xmlNodePtr pptr = (xmlNodePtr) vptr;
 426     if (o->direction == ODR_DECODE)
 427     {
 428         Z_SRW_PDU **p = handler_data;
 429         xmlNodePtr method = pptr->children;
 430
 431         while (method && method->type == XML_TEXT_NODE)
 432             method = method->next;
 433
 434         if (!method)
 435             return -1;
 436         if (method->type != XML_ELEMENT_NODE)
 437             return -1;
 438
 439         *p = (Z_SRW_PDU *) odr_malloc(o, sizeof(**p));
 440         (*p)->srw_version = odr_strdup(o, "1.1");
 441
 442         if (!strcmp(method->name, "searchRetrieveRequest"))
 443         {
 444             xmlNodePtr ptr = method->children;
 445             Z_SRW_searchRetrieveRequest *req;
 446
 447             (*p)->which = Z_SRW_searchRetrieve_request;
 448             req = (*p)->u.request = (Z_SRW_searchRetrieveRequest *)
 449                 odr_malloc(o, sizeof(*req));
 450             req->query_type = Z_SRW_query_type_cql;
 451             req->query.cql = 0;
 452             req->sort_type = Z_SRW_sort_type_none;
 453             req->sort.none = 0;
 454             req->startRecord = 0;
 455             req->maximumRecords = 0;
 456             req->recordSchema = 0;
 457             req->recordPacking = 0;
 458             req->recordXPath = 0;
 459             req->resultSetTTL = 0;
 460             req->stylesheet = 0;
 461             req->database = 0;
 462
 463             for (; ptr; ptr = ptr->next)
 464             {
 465                 if (match_xsd_string(ptr, "version", o,
 466                                      &(*p)->srw_version))
 467                     ;
 468                 else if (match_xsd_string(ptr, "query", o,
 469                                      &req->query.cql))
 470                     req->query_type = Z_SRW_query_type_cql;
 471                 else if (match_xsd_string(ptr, "pQuery", o,
 472                                      &req->query.pqf))
 473                     req->query_type = Z_SRW_query_type_pqf;
 474                 else if (match_xsd_string(ptr, "xQuery", o,
 475                                      &req->query.xcql))
 476                     req->query_type = Z_SRW_query_type_xcql;
 477                 else if (match_xsd_integer(ptr, "startRecord", o,
 478                                            &req->startRecord))
 479                     ;
 480                 else if (match_xsd_integer(ptr, "maximumRecords", o,
 481                                            &req->maximumRecords))
 482                     ;
 483                 else if (match_xsd_string(ptr, "recordPacking", o,
 484                                           &req->recordPacking))
 485                     ;
 486                 else if (match_xsd_string(ptr, "recordSchema", o,
 487                                           &req->recordSchema))
 488                     ;
 489                 else if (match_xsd_string(ptr, "recordXPath", o,
 490                                           &req->recordXPath))
 491                     ;
 492                 else if (match_xsd_string(ptr, "resultSetTTL", o,
 493                                            &req->database))
 494                     ;
 495                 else if (match_xsd_string(ptr, "sortKeys", o,
 496                                           &req->sort.sortKeys))
 497                     req->sort_type = Z_SRW_sort_type_sort;
 498                 else if (match_xsd_string(ptr, "stylesheet", o,
 499                                            &req->stylesheet))
 500                     ;
 501                 else if (match_xsd_string(ptr, "database", o,
 502                                            &req->database))
 503                     ;
 504                 /* missing is xQuery, xSortKeys .. */
 505             }
 506         }
 507         else if (!strcmp(method->name, "searchRetrieveResponse"))
 508         {
 509             xmlNodePtr ptr = method->children;
 510             Z_SRW_searchRetrieveResponse *res;
 511
 512             (*p)->which = Z_SRW_searchRetrieve_response;
 513             res = (*p)->u.response = (Z_SRW_searchRetrieveResponse *)
 514                 odr_malloc(o, sizeof(*res));
 515
 516             res->numberOfRecords = 0;
 517             res->resultSetId = 0;
 518             res->resultSetIdleTime = 0;
 519             res->records = 0;
 520             res->num_records = 0;
 521             res->diagnostics = 0;
 522             res->num_diagnostics = 0;
 523             res->nextRecordPosition = 0;
 524
 525             for (; ptr; ptr = ptr->next)
 526             {
 527                 if (match_xsd_string(ptr, "version", o,
 528                                      &(*p)->srw_version))
 529                     ;
 530                 else if (match_xsd_integer(ptr, "numberOfRecords", o,
 531                                       &res->numberOfRecords))
 532                     ;
 533                 else if (match_xsd_string(ptr, "resultSetId", o,
 534                                           &res->resultSetId))
 535                     ;
 536                 else if (match_xsd_integer(ptr, "resultSetIdleTime", o,
 537                                            &res->resultSetIdleTime))
 538                     ;
 539                 else if (match_element(ptr, "records"))
 540                     yaz_srw_records(o, ptr, &res->records,
 541                                     &res->num_records, client_data,
 542                                     ns);
 543                 else if (match_xsd_integer(ptr, "nextRecordPosition", o,
 544                                            &res->nextRecordPosition))
 545                     ;
 546                 else if (match_element(ptr, "diagnostics"))
 547                     yaz_srw_diagnostics(o, ptr, &res->diagnostics,
 548                                         &res->num_diagnostics,
 549                                         client_data, ns);
 550             }
 551         }
 552         else if (!strcmp(method->name, "explainRequest"))
 553         {
 554             Z_SRW_explainRequest *req;
 555             xmlNodePtr ptr = method->children;
 556
 557             (*p)->which = Z_SRW_explain_request;
 558             req = (*p)->u.explain_request = (Z_SRW_explainRequest *)
 559                 odr_malloc(o, sizeof(*req));
 560             req->recordPacking = 0;
 561             req->database = 0;
 562             req->stylesheet = 0;
 563             for (; ptr; ptr = ptr->next)
 564             {
 565                 if (match_xsd_string(ptr, "version", o,
 566                                            &(*p)->srw_version))
 567                     ;
 568                 else if (match_xsd_string(ptr, "stylesheet", o,
 569                                           &req->stylesheet))
 570                     ;
 571                 else if (match_xsd_string(ptr, "recordPacking", o,
 572                                      &req->recordPacking))
 573                     ;
 574                 else if (match_xsd_string(ptr, "database", o,
 575                                      &req->database))
 576                     ;
 577             }
 578         }
 579         else if (!strcmp(method->name, "explainResponse"))
 580         {
 581             Z_SRW_explainResponse *res;
 582             xmlNodePtr ptr = method->children;
 583
 584             (*p)->which = Z_SRW_explain_response;
 585             res = (*p)->u.explain_response = (Z_SRW_explainResponse*)
 586                 odr_malloc(o, sizeof(*res));
 587             res->diagnostics = 0;
 588             res->num_diagnostics = 0;
 589             res->record.recordSchema = 0;
 590             res->record.recordData_buf = 0;
 591             res->record.recordData_len = 0;
 592             res->record.recordPosition = 0;
 593
 594             for (; ptr; ptr = ptr->next)
 595             {
 596                 if (match_xsd_string(ptr, "version", o,
 597                                            &(*p)->srw_version))
 598                     ;
 599                 else if (match_element(ptr, "record"))
 600                     yaz_srw_record(o, ptr, &res->record, client_data, ns);
 601                 else if (match_element(ptr, "diagnostics"))
 602                     yaz_srw_diagnostics(o, ptr, &res->diagnostics,
 603                                         &res->num_diagnostics,
 604                                         client_data, ns);
 605                 ;
 606             }
 607         }
 608         else if (!strcmp(method->name, "scanRequest"))
 609         {
 610             Z_SRW_scanRequest *req;
 611             xmlNodePtr ptr = method->children;
 612
 613             (*p)->which = Z_SRW_scan_request;
 614             req = (*p)->u.scan_request = (Z_SRW_scanRequest *)
 615                 odr_malloc(o, sizeof(*req));
 616             req->query_type = Z_SRW_query_type_cql;
 617             req->scanClause.cql = 0;
 618             req->responsePosition = 0;
 619             req->maximumTerms = 0;
 620             req->stylesheet = 0;
 621             req->database = 0;
 622
 623             for (; ptr; ptr = ptr->next)
 624             {
 625                 if (match_xsd_string(ptr, "version", o,
 626                                      &(*p)->srw_version))
 627                     ;
 628                 else if (match_xsd_string(ptr, "scanClause", o,
 629                                      &req->scanClause.cql))
 630                     ;
 631                 else if (match_xsd_string(ptr, "pScanClause", o,
 632                                           &req->scanClause.pqf))
 633                 {
 634                     req->query_type = Z_SRW_query_type_pqf;
 635                 }
 636                 else if (match_xsd_integer(ptr, "responsePosition", o,
 637                                            &req->responsePosition))
 638                     ;
 639                 else if (match_xsd_integer(ptr, "maximumTerms", o,
 640                                            &req->maximumTerms))
 641                     ;
 642                 else if (match_xsd_string(ptr, "stylesheet", o,
 643                                           &req->stylesheet))
 644                     ;
 645                 else if (match_xsd_string(ptr, "database", o,
 646                                           &req->database))
 647                     ;
 648             }
 649         }
 650         else if (!strcmp(method->name, "scanResponse"))
 651         {
 652             Z_SRW_scanResponse *res;
 653             xmlNodePtr ptr = method->children;
 654
 655             (*p)->which = Z_SRW_scan_response;
 656             res = (*p)->u.scan_response = (Z_SRW_scanResponse *)
 657                 odr_malloc(o, sizeof(*res));
 658             res->terms = 0;
 659             res->num_terms = 0;
 660             res->diagnostics = 0;
 661             res->num_diagnostics = 0;
 662
 663             for (; ptr; ptr = ptr->next)
 664             {
 665                 if (match_xsd_string(ptr, "version", o,
 666                                      &(*p)->srw_version))
 667                     ;
 668                 else if (match_element(ptr, "terms"))
 669                     yaz_srw_terms(o, ptr, &res->terms,
 670                                   &res->num_terms, client_data,
 671                                   ns);
 672                 else if (match_element(ptr, "diagnostics"))
 673                     yaz_srw_diagnostics(o, ptr, &res->diagnostics,
 674                                         &res->num_diagnostics,
 675                                         client_data, ns);
 676             }
 677         }
 678         else
 679         {
 680             *p = 0;
 681             return -1;
 682         }
 683     }
 684     else if (o->direction == ODR_ENCODE)
 685     {
 686         Z_SRW_PDU **p = handler_data;
 687         xmlNsPtr ns_srw;
 688
 689         if ((*p)->which == Z_SRW_searchRetrieve_request)
 690         {
 691             Z_SRW_searchRetrieveRequest *req = (*p)->u.request;
 692             xmlNodePtr ptr = xmlNewChild(pptr, 0,
 693                                          "searchRetrieveRequest", 0);
 694             ns_srw = xmlNewNs(ptr, ns, "zs");
 695             xmlSetNs(ptr, ns_srw);
 696
 697             if ((*p)->srw_version)
 698                 add_xsd_string(ptr, "version", (*p)->srw_version);
 699             switch(req->query_type)
 700             {
 701             case Z_SRW_query_type_cql:
 702                 add_xsd_string(ptr, "query", req->query.cql);
 703                 break;
 704             case Z_SRW_query_type_xcql:
 705                 add_xsd_string(ptr, "xQuery", req->query.xcql);
 706                 break;
 707             case Z_SRW_query_type_pqf:
 708                 add_xsd_string(ptr, "pQuery", req->query.pqf);
 709                 break;
 710             }
 711             add_xsd_integer(ptr, "startRecord", req->startRecord);
 712             add_xsd_integer(ptr, "maximumRecords", req->maximumRecords);
 713             add_xsd_string(ptr, "recordPacking", req->recordPacking);
 714             add_xsd_string(ptr, "recordSchema", req->recordSchema);
 715             add_xsd_string(ptr, "recordXPath", req->recordXPath);
 716             add_xsd_integer(ptr, "resultSetTTL", req->resultSetTTL);
 717             switch(req->sort_type)
 718             {
 719             case Z_SRW_sort_type_none:
 720                 break;
 721             case Z_SRW_sort_type_sort:
 722                 add_xsd_string(ptr, "sortKeys", req->sort.sortKeys);
 723                 break;
 724             case Z_SRW_sort_type_xSort:
 725                 add_xsd_string(ptr, "xSortKeys", req->sort.xSortKeys);
 726                 break;
 727             }
 728             add_xsd_string(ptr, "stylesheet", req->stylesheet);
 729             add_xsd_string(ptr, "database", req->database);
 730         }
 731         else if ((*p)->which == Z_SRW_searchRetrieve_response)
 732         {
 733             Z_SRW_searchRetrieveResponse *res = (*p)->u.response;
 734             xmlNodePtr ptr = xmlNewChild(pptr, 0,
 735                                          "searchRetrieveResponse", 0);
 736             ns_srw = xmlNewNs(ptr, ns, "zs");
 737             xmlSetNs(ptr, ns_srw);
 738
 739             if ((*p)->srw_version)
 740                 add_xsd_string(ptr, "version", (*p)->srw_version);
 741             add_xsd_integer(ptr, "numberOfRecords", res->numberOfRecords);
 742             add_xsd_string(ptr, "resultSetId", res->resultSetId);
 743             add_xsd_integer(ptr, "resultSetIdleTime", res->resultSetIdleTime);
 744             if (res->num_records)
 745             {
 746                 xmlNodePtr rptr = xmlNewChild(ptr, 0, "records", 0);
 747                 yaz_srw_records(o, rptr, &res->records, &res->num_records,
 748                                 client_data, ns);
 749             }
 750             add_xsd_integer(ptr, "nextRecordPosition",
 751                             res->nextRecordPosition);
 752             if (res->num_diagnostics)
 753             {
 754                 xmlNodePtr rptr = xmlNewChild(ptr, 0, "diagnostics", 0);
 755                 yaz_srw_diagnostics(o, rptr, &res->diagnostics,
 756                                     &res->num_diagnostics, client_data, ns);
 757             }
 758         }
 759         else if ((*p)->which == Z_SRW_explain_request)
 760         {
 761             Z_SRW_explainRequest *req = (*p)->u.explain_request;
 762             xmlNodePtr ptr = xmlNewChild(pptr, 0, "explainRequest", 0);
 763             ns_srw = xmlNewNs(ptr, ns, "zs");
 764             xmlSetNs(ptr, ns_srw);
 765
 766             add_xsd_string(ptr, "version", (*p)->srw_version);
 767             add_xsd_string(ptr, "recordPacking", req->recordPacking);
 768             add_xsd_string(ptr, "stylesheet", req->stylesheet);
 769             add_xsd_string(ptr, "database", req->database);
 770         }
 771         else if ((*p)->which == Z_SRW_explain_response)
 772         {
 773             Z_SRW_explainResponse *res = (*p)->u.explain_response;
 774             xmlNodePtr ptr = xmlNewChild(pptr, 0, "explainResponse", 0);
 775             ns_srw = xmlNewNs(ptr, ns, "zs");
 776             xmlSetNs(ptr, ns_srw);
 777
 778             add_xsd_string(ptr, "version", (*p)->srw_version);
 779             if (1)
 780             {
 781                 xmlNodePtr ptr1 = xmlNewChild(ptr, 0, "record", 0);
 782                 yaz_srw_record(o, ptr1, &res->record, client_data, ns);
 783             }
 784             if (res->num_diagnostics)
 785             {
 786                 xmlNodePtr rptr = xmlNewChild(ptr, 0, "diagnostics", 0);
 787                 yaz_srw_diagnostics(o, rptr, &res->diagnostics,
 788                                     &res->num_diagnostics, client_data, ns);
 789             }
 790         }
 791         else if ((*p)->which == Z_SRW_scan_request)
 792         {
 793             Z_SRW_scanRequest *req = (*p)->u.scan_request;
 794             xmlNodePtr ptr = xmlNewChild(pptr, 0, "scanRequest", 0);
 795             ns_srw = xmlNewNs(ptr, ns, "zs");
 796             xmlSetNs(ptr, ns_srw);
 797
 798             add_xsd_string(ptr, "version", (*p)->srw_version);
 799             switch(req->query_type)
 800             {
 801             case Z_SRW_query_type_cql:
 802                 add_xsd_string(ptr, "scanClause", req->scanClause.cql);
 803                 break;
 804             case Z_SRW_query_type_pqf:
 805                 add_xsd_string(ptr, "pScanClause", req->scanClause.pqf);
 806                 break;
 807             }
 808             add_xsd_integer(ptr, "responsePosition", req->responsePosition);
 809             add_xsd_integer(ptr, "maximumTerms", req->maximumTerms);
 810             add_xsd_string(ptr, "stylesheet", req->stylesheet);
 811             add_xsd_string(ptr, "database", req->database);
 812         }
 813         else if ((*p)->which == Z_SRW_scan_response)
 814         {
 815             Z_SRW_scanResponse *res = (*p)->u.scan_response;
 816             xmlNodePtr ptr = xmlNewChild(pptr, 0, "scanResponse", 0);
 817             ns_srw = xmlNewNs(ptr, ns, "zs");
 818             xmlSetNs(ptr, ns_srw);
 819
 820             add_xsd_string(ptr, "version", (*p)->srw_version);
 821
 822             if (res->num_terms)
 823             {
 824                 xmlNodePtr rptr = xmlNewChild(ptr, 0, "terms", 0);
 825                 yaz_srw_terms(o, rptr, &res->terms, &res->num_terms,
 826                               client_data, ns);
 827             }
 828             if (res->num_diagnostics)
 829             {
 830                 xmlNodePtr rptr = xmlNewChild(ptr, 0, "diagnostics", 0);
 831                 yaz_srw_diagnostics(o, rptr, &res->diagnostics,
 832                                     &res->num_diagnostics, client_data, ns);
 833             }
 834         }
 835         else
 836             return -1;
 837
 838     }
 839     return 0;
 840 }
 841
 842 #endif
 843
 844