X-Git-Url: http://git.indexdata.com/?p=idzebra-moved-to-github.git;a=blobdiff_plain;f=index%2Fretrieve.c;h=d3928d9055f33ace326a0c9b570a3a582ce61da9;hp=5c28b2addecc0469a989fa6ba7552268117d55d5;hb=f82c996895d8dcd69e987660ebf9fdaafdba35b0;hpb=852d5f1f9aa0a70f7e54a68143ee86752394a2f2 diff --git a/index/retrieve.c b/index/retrieve.c index 5c28b2a..d3928d9 100644 --- a/index/retrieve.c +++ b/index/retrieve.c @@ -1,5 +1,5 @@ -/* $Id: retrieve.c,v 1.44 2006-08-22 13:39:27 adam Exp $ - Copyright (C) 1995-2006 +/* $Id: retrieve.c,v 1.78 2007-12-03 13:04:04 adam Exp $ + Copyright (C) 1995-2007 Index Data ApS This file is part of the Zebra server. @@ -33,236 +33,1100 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA #endif #include "index.h" +#include +#include #include +#include +#include -int zebra_record_fetch (ZebraHandle zh, SYSNO sysno, int score, - zebra_snippets *hit_snippet, ODR odr, - oid_value input_format, Z_RecordComposition *comp, - oid_value *output_format, char **rec_bufp, - int *rec_lenp, char **basenamep, - char **addinfo) +#define MAX_SYSNOS_PER_RECORD 40 + +#define ZEBRA_XML_HEADER_STR "reg->zei, *rec); - *basenamep = 0; - *addinfo = 0; - if (comp && comp->which == Z_RecordComp_simple && - comp->u.simple->which == Z_ElementSetNames_generic && - !strcmp (comp->u.simple->u.generic, "_sysno_")) - { - char rec_str[60]; - sprintf(rec_str, ZINT_FORMAT, sysno); - *output_format = VAL_SUTRS; - *rec_lenp = strlen(rec_str); - *rec_bufp = odr_strdup(odr, rec_str); - return 0; - } - rec = rec_get (zh->reg->records, sysno); - if (!rec) + if ((*rec)->size[recInfo_storeData] > 0) + zebra_create_stream_mem(stream, (*rec)->info[recInfo_storeData], + (*rec)->size[recInfo_storeData]); + else { - yaz_log (YLOG_DEBUG, "rec_get fail on sysno=" ZINT_FORMAT, sysno); - *basenamep = 0; - return 14; + char full_rep[1024]; + int fd; + + if (zh->path_reg && !yaz_is_abspath((*rec)->info[recInfo_filename])){ + strcpy(full_rep, zh->path_reg); + strcat(full_rep, "/"); + strcat(full_rep, (*rec)->info[recInfo_filename]); + } + else + strcpy(full_rep, (*rec)->info[recInfo_filename]); + + if ((fd = open(full_rep, O_BINARY|O_RDONLY)) == -1){ + yaz_log(YLOG_WARN|YLOG_ERRNO, "Retrieve fail; missing file: %s", + full_rep); + rec_free(rec); + return YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS; + } + zebra_create_stream_fd(stream, fd, recordAttr->recordOffset); } - recordAttr = rec_init_attr (zh->reg->zei, rec); + return 0; +} + - file_type = rec->info[recInfo_fileType]; - fname = rec->info[recInfo_filename]; - basename = rec->info[recInfo_databaseName]; - *basenamep = (char *) odr_malloc (odr, strlen(basename)+1); - strcpy (*basenamep, basename); - - if (comp && comp->which == Z_RecordComp_simple && - comp->u.simple->which == Z_ElementSetNames_generic && - !strcmp (comp->u.simple->u.generic, "_storekeys_")) - { - WRBUF wrbuf = wrbuf_alloc(); - zebra_rec_keys_t keys = zebra_rec_keys_open(); - zebra_rec_keys_set_buf(keys, - rec->info[recInfo_delKeys], - rec->size[recInfo_delKeys], - 0); - if (zebra_rec_keys_rewind(keys)) - { - size_t slen; - const char *str; - struct it_key key_in; - while(zebra_rec_keys_read(keys, &str, &slen, &key_in)) - { - int i; - int ord = CAST_ZINT_TO_INT(key_in.mem[0]); - int index_type; - const char *db = 0; - int set = 0; - int use = 0; - const char *string_index = 0; - char dst_buf[IT_MAX_WORD]; - - zebraExplain_lookup_ord(zh->reg->zei, ord, &index_type, &db, - &string_index); - - if (string_index) - wrbuf_printf(wrbuf, "%s", string_index); - else - wrbuf_printf(wrbuf, "set=%d,use=%d", set, use); - - zebra_term_untrans(zh, index_type, dst_buf, str); - wrbuf_printf(wrbuf, " %s", dst_buf); - - for (i = 1; i < key_in.len; i++) - wrbuf_printf(wrbuf, " " ZINT_FORMAT, key_in.mem[i]); - wrbuf_printf(wrbuf, "\n"); - - } - } - *output_format = VAL_SUTRS; - *rec_lenp = wrbuf_len(wrbuf); - *rec_bufp = odr_malloc(odr, *rec_lenp); - memcpy(*rec_bufp, wrbuf_buf(wrbuf), *rec_lenp); - wrbuf_free(wrbuf, 1); - zebra_rec_keys_close(keys); - return 0; - } - if (comp && comp->which == Z_RecordComp_simple && - comp->u.simple->which == Z_ElementSetNames_generic && - !strcmp (comp->u.simple->u.generic, "R")) - { - raw_mode = 1; - } - if (!(rt = recType_byName (zh->reg->recTypes, zh->res, - file_type, &clientData))) - { - yaz_log (YLOG_WARN, "Retrieve: Cannot handle type %s", file_type); - return 14; - } - yaz_log (YLOG_DEBUG, "retrieve localno=" ZINT_FORMAT " score=%d", sysno,score); - retrieveCtrl.stream = &stream; - retrieveCtrl.fname = fname; - if (rec->size[recInfo_storeData] > 0) - { - zebra_create_stream_mem(&stream, rec->info[recInfo_storeData], - rec->size[recInfo_storeData]); - if (raw_mode) - { - *output_format = VAL_SUTRS; - *rec_lenp = rec->size[recInfo_storeData]; - *rec_bufp = (char *) odr_malloc(odr, *rec_lenp); - memcpy(*rec_bufp, rec->info[recInfo_storeData], *rec_lenp); - rec_rm (&rec); - stream.destroy(&stream); - return 0; - } +struct index_spec { + const char *index_name; + const char *index_type; + struct index_spec *next; +}; + + +struct index_spec *parse_index_spec(const char *elem, NMEM nmem, + int *error) +{ + struct index_spec *first = 0; + struct index_spec **last = &first; + const char *cp = elem; + + *error = 0; + if (cp[0] == ':' && cp[1] == ':') + { + + cp++; /* skip first ':' */ + + for (;;) + { + const char *cp0; + struct index_spec *spec = nmem_malloc(nmem, sizeof(*spec)); + spec->index_type = 0; + spec->next = 0; + + if (!first) + first = spec; + *last = spec; + last = &spec->next; + + cp++; /* skip ',' or second ':' */ + cp0 = cp; + while (*cp != ':' && *cp != '\0' && *cp != ',') + cp++; + spec->index_name = nmem_strdupn(nmem, cp0, cp - cp0); + if (*cp == ':') /* type as well */ + { + cp++; + cp0 = cp; + + while (*cp != '\0' && *cp != ',') + cp++; + spec->index_type = nmem_strdupn(nmem, cp0, cp - cp0); + } + if (*cp != ',') + break; + } } + if (*cp != '\0') + *error = 1; + return first; +} + +static int parse_zebra_elem(const char *elem, + const char **index, size_t *index_len, + const char **type, size_t *type_len) +{ + *index = 0; + *index_len = 0; + + *type = 0; + *type_len = 0; + + if (elem && *elem) + { + char *cp; + /* verify that '::' is in the beginning of *elem + and something more follows */ + if (':' != *elem + || !(elem +1) || ':' != *(elem +1) + || !(elem +2) || '\0' == *(elem +2)) + return 0; + + /* pick out info from string after '::' */ + elem = elem + 2; + cp = strchr(elem, ':'); + + if (!cp) /* index, no colon, no type */ + { + *index = elem; + *index_len = strlen(elem); + } + else if (cp[1] == '\0') /* colon, but no following type */ + { + return 0; + } + else /* index, colon and type */ + { + *index = elem; + *index_len = cp - elem; + *type = cp+1; + *type_len = strlen(cp+1); + } + } + return 1; +} + + +int zebra_special_sort_fetch(ZebraHandle zh, zint sysno, ODR odr, + const char *elemsetname, + const Odr_oid *input_format, + const Odr_oid **output_format, + char **rec_bufp, int *rec_lenp) +{ + const char *retrieval_index; + size_t retrieval_index_len; + const char *retrieval_type; + size_t retrieval_type_len; + char retrieval_index_cstr[256]; + char retrieval_type_cstr[256]; + int ord; + + /* only accept XML and SUTRS requests */ + if (oid_oidcmp(input_format, yaz_oid_recsyn_xml) + && oid_oidcmp(input_format, yaz_oid_recsyn_sutrs)) + { + yaz_log(YLOG_WARN, "unsupported format for element set zebra::%s", + elemsetname); + *output_format = 0; + return YAZ_BIB1_NO_SYNTAXES_AVAILABLE_FOR_THIS_REQUEST; + } + + if (!parse_zebra_elem(elemsetname, + &retrieval_index, &retrieval_index_len, + &retrieval_type, &retrieval_type_len)) + { + return YAZ_BIB1_SPECIFIED_ELEMENT_SET_NAME_NOT_VALID_FOR_SPECIFIED_; + } + + if (retrieval_type_len == 0) + return -1; /* must have a register type specified */ + if (!retrieval_index_len || + retrieval_index_len >= sizeof(retrieval_index_cstr)-1) + { + return YAZ_BIB1_SPECIFIED_ELEMENT_SET_NAME_NOT_VALID_FOR_SPECIFIED_; + } + + memcpy(retrieval_index_cstr, retrieval_index, retrieval_index_len); + retrieval_index_cstr[retrieval_index_len] = '\0'; + + memcpy(retrieval_type_cstr, retrieval_type, retrieval_type_len); + retrieval_type_cstr[retrieval_type_len] = '\0'; + + ord = zebraExplain_lookup_attr_str(zh->reg->zei, + zinfo_index_category_sort, + retrieval_type_cstr, + retrieval_index_cstr); + if (ord == -1) + return -1; /* is not a sort index */ else { - char full_rep[1024]; - int fd; + char dst_buf[IT_MAX_WORD]; + char str[IT_MAX_WORD]; + const char *index_type; + const char *db = 0; + const char *string_index = 0; + WRBUF wrbuf = wrbuf_alloc(); + + zebra_sort_sysno(zh->reg->sort_index, sysno); + zebra_sort_type(zh->reg->sort_index, ord); + zebra_sort_read(zh->reg->sort_index, str); + + zebraExplain_lookup_ord(zh->reg->zei, ord, &index_type, &db, &string_index); + + zebra_term_untrans(zh, index_type, dst_buf, str); - if (zh->path_reg && !yaz_is_abspath (fname)) + if (!oid_oidcmp(input_format, yaz_oid_recsyn_xml)) { - strcpy (full_rep, zh->path_reg); - strcat (full_rep, "/"); - strcat (full_rep, fname); + *output_format = yaz_oid_recsyn_xml; + wrbuf_printf(wrbuf, ZEBRA_XML_HEADER_STR + " sysno=\"" ZINT_FORMAT "\"" + " set=\"zebra::index%s/\">\n", + sysno, elemsetname); + + wrbuf_printf(wrbuf, " ", index_type); + wrbuf_xmlputs(wrbuf, dst_buf); + wrbuf_printf(wrbuf, "\n"); + wrbuf_printf(wrbuf, "\n"); } - else - strcpy (full_rep, fname); + else if (!oid_oidcmp(input_format, yaz_oid_recsyn_sutrs)) + { + *output_format = yaz_oid_recsyn_sutrs; + + wrbuf_printf(wrbuf, "%s %s %s\n", string_index, index_type, + dst_buf); + } + *rec_lenp = wrbuf_len(wrbuf); + *rec_bufp = odr_malloc(odr, *rec_lenp); + memcpy(*rec_bufp, wrbuf_buf(wrbuf), *rec_lenp); + wrbuf_destroy(wrbuf); + return 0; + } +} + +int zebra_special_index_fetch(ZebraHandle zh, zint sysno, ODR odr, + Record rec, + const char *elemsetname, + const Odr_oid *input_format, + const Odr_oid **output_format, + char **rec_bufp, int *rec_lenp) +{ + const char *retrieval_index; + size_t retrieval_index_len; + const char *retrieval_type; + size_t retrieval_type_len; + zebra_rec_keys_t keys; + int ret_code = 0; + char retrieval_type_cstr[256]; + + /* set output variables before processing possible error states */ + /* *rec_lenp = 0; */ + + /* only accept XML and SUTRS requests */ + if (oid_oidcmp(input_format, yaz_oid_recsyn_xml) + && oid_oidcmp(input_format, yaz_oid_recsyn_sutrs)) + { + yaz_log(YLOG_WARN, "unsupported format for element set zebra::%s", + elemsetname); + *output_format = 0; + return YAZ_BIB1_NO_SYNTAXES_AVAILABLE_FOR_THIS_REQUEST; + } + + if (!parse_zebra_elem(elemsetname, + &retrieval_index, &retrieval_index_len, + &retrieval_type, &retrieval_type_len)) + return YAZ_BIB1_SPECIFIED_ELEMENT_SET_NAME_NOT_VALID_FOR_SPECIFIED_; + + if (retrieval_type_len) + { + memcpy(retrieval_type_cstr, retrieval_type, retrieval_type_len); + retrieval_type_cstr[retrieval_type_len] = '\0'; + } + + if (retrieval_index_len) + { + char retrieval_index_cstr[256]; - if ((fd = open (full_rep, O_BINARY|O_RDONLY)) == -1) + if (retrieval_index_len < sizeof(retrieval_index_cstr) -1) { - yaz_log (YLOG_WARN|YLOG_ERRNO, "Retrieve fail; missing file: %s", - full_rep); - rec_rm (&rec); - stream.destroy(&stream); - return 14; + memcpy(retrieval_index_cstr, retrieval_index, retrieval_index_len); + retrieval_index_cstr[retrieval_index_len] = '\0'; + + if (zebraExplain_lookup_attr_str(zh->reg->zei, + zinfo_index_category_index, + (retrieval_type_len == 0 ? 0 : + retrieval_type_cstr), + retrieval_index_cstr) == -1) + return YAZ_BIB1_SPECIFIED_ELEMENT_SET_NAME_NOT_VALID_FOR_SPECIFIED_; } + } - zebra_create_stream_fd(&stream, fd, recordAttr->recordOffset); - if (raw_mode) - { - *output_format = VAL_SUTRS; - *rec_lenp = recordAttr->recordSize; - *rec_bufp = (char *) odr_malloc(odr, *rec_lenp); - stream.readf(&stream, *rec_bufp, *rec_lenp); - rec_rm (&rec); - stream.destroy(&stream); - return 0; - } - } - retrieveCtrl.localno = sysno; - retrieveCtrl.staticrank = recordAttr->staticrank; - retrieveCtrl.score = score; - retrieveCtrl.recordSize = recordAttr->recordSize; - retrieveCtrl.odr = odr; - retrieveCtrl.input_format = retrieveCtrl.output_format = input_format; - retrieveCtrl.comp = comp; - retrieveCtrl.encoding = zh->record_encoding; - retrieveCtrl.diagnostic = 0; - retrieveCtrl.addinfo = 0; - retrieveCtrl.dh = zh->reg->dh; - retrieveCtrl.res = zh->res; - retrieveCtrl.rec_buf = 0; - retrieveCtrl.rec_len = -1; - retrieveCtrl.hit_snippet = hit_snippet; - retrieveCtrl.doc_snippet = zebra_snippets_create(); + keys = zebra_rec_keys_open(); + zebra_rec_keys_set_buf(keys, rec->info[recInfo_delKeys], + rec->size[recInfo_delKeys], 0); + + if (!zebra_rec_keys_rewind(keys)) + { + ret_code = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS; + } + else + { + size_t slen; + const char *str; + struct it_key key_in; + WRBUF wrbuf = wrbuf_alloc(); - if (1) + if (!oid_oidcmp(input_format, yaz_oid_recsyn_xml)) + { + *output_format = input_format; + wrbuf_printf(wrbuf, ZEBRA_XML_HEADER_STR + " sysno=\"" ZINT_FORMAT "\"" + " set=\"zebra::index%s/\">\n", + sysno, elemsetname); + } + else if (!oid_oidcmp(input_format, yaz_oid_recsyn_sutrs)) + *output_format = input_format; + + while (zebra_rec_keys_read(keys, &str, &slen, &key_in)) + { + int i; + int ord = CAST_ZINT_TO_INT(key_in.mem[0]); + const char *index_type; + const char *db = 0; + const char *string_index = 0; + size_t string_index_len; + char dst_buf[IT_MAX_WORD]; + + zebraExplain_lookup_ord(zh->reg->zei, ord, &index_type, &db, + &string_index); + string_index_len = strlen(string_index); + + /* process only if index is not defined, + or if defined and matching */ + if (retrieval_index == 0 + || (string_index_len == retrieval_index_len + && !memcmp(string_index, retrieval_index, + string_index_len))) + { + /* process only if type is not defined, or is matching */ + if (retrieval_type == 0 + || !strcmp(retrieval_type_cstr, index_type)) + { + zebra_term_untrans(zh, index_type, dst_buf, str); + if (strlen(dst_buf)) + { + if (!oid_oidcmp(input_format, yaz_oid_recsyn_xml)) + { + wrbuf_printf(wrbuf, " ", + key_in.mem[key_in.len -1]); + + wrbuf_xmlputs(wrbuf, dst_buf); + wrbuf_printf(wrbuf, "\n"); + } + else + { + wrbuf_printf(wrbuf, "%s ", string_index); + + wrbuf_printf(wrbuf, "%s", index_type); + + for (i = 1; i < key_in.len; i++) + wrbuf_printf(wrbuf, " " ZINT_FORMAT, + key_in.mem[i]); + + wrbuf_printf(wrbuf, " %s", dst_buf); + + wrbuf_printf(wrbuf, "\n"); + } + } + + } + } + } + if (!oid_oidcmp(input_format, yaz_oid_recsyn_xml)) + wrbuf_printf(wrbuf, "\n"); + *rec_lenp = wrbuf_len(wrbuf); + *rec_bufp = odr_malloc(odr, *rec_lenp); + memcpy(*rec_bufp, wrbuf_buf(wrbuf), *rec_lenp); + wrbuf_destroy(wrbuf); + } + zebra_rec_keys_close(keys); + return ret_code; +} + + +static void retrieve_puts_attr(WRBUF wrbuf, const char *name, + const char *value) +{ + if (value) + { + wrbuf_printf(wrbuf, " %s=\"", name); + wrbuf_xmlputs(wrbuf, value); + wrbuf_printf(wrbuf, "\""); + } +} + +static void retrieve_puts_attr_int(WRBUF wrbuf, const char *name, + const int value) +{ + wrbuf_printf(wrbuf, " %s=\"%i\"", name, value); +} + +static void retrieve_puts_str(WRBUF wrbuf, const char *name, + const char *value) +{ + if (value) + wrbuf_printf(wrbuf, "%s %s\n", name, value); +} + +static void retrieve_puts_int(WRBUF wrbuf, const char *name, + const int value) +{ + wrbuf_printf(wrbuf, "%s %i\n", name, value); +} + + +static void snippet_xml_record(ZebraHandle zh, WRBUF wrbuf, zebra_snippets *doc) +{ + const zebra_snippet_word *doc_w; + int mark_state = 0; + + wrbuf_printf(wrbuf, "%s>\n", ZEBRA_XML_HEADER_STR); + for (doc_w = zebra_snippets_constlist(doc); doc_w; doc_w = doc_w->next) { - /* snippets code */ - zebra_snippets *snippet; + if (doc_w->mark) + { + const char *index_type; + const char *db = 0; + const char *string_index = 0; - zebra_rec_keys_t reckeys = zebra_rec_keys_open(); - - zebra_rec_keys_set_buf(reckeys, - rec->info[recInfo_delKeys], - rec->size[recInfo_delKeys], - 0); - zebra_snippets_rec_keys(zh, reckeys, retrieveCtrl.doc_snippet); - zebra_rec_keys_close(reckeys); + zebraExplain_lookup_ord(zh->reg->zei, doc_w->ord, + &index_type, &db, &string_index); + if (mark_state == 0) + { + wrbuf_printf(wrbuf, " ", index_type); + } + if (doc_w->match) + wrbuf_puts(wrbuf, ""); + /* not printing leading ws */ + if (mark_state || !doc_w->ws || doc_w->match) + wrbuf_xmlputs(wrbuf, doc_w->term); + if (doc_w->match) + wrbuf_puts(wrbuf, ""); + } + else if (mark_state == 1) + { + wrbuf_puts(wrbuf, "\n"); + } + mark_state = doc_w->mark; + } + if (mark_state == 1) + { + wrbuf_puts(wrbuf, "\n"); + } + wrbuf_printf(wrbuf, ""); +} + +int zebra_get_rec_snippets(ZebraHandle zh, zint sysno, + zebra_snippets *snippets) +{ + int return_code = 0; + Record rec = rec_get(zh->reg->records, sysno); + if (!rec) + { + yaz_log(YLOG_WARN, "rec_get fail on sysno=" ZINT_FORMAT, sysno); + return_code = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS; + } + else + { + const char *file_type = rec->info[recInfo_fileType]; + void *recTypeClientData; + RecType rt = recType_byName(zh->reg->recTypes, zh->res, + file_type, &recTypeClientData); + + if (!rt) + return_code = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS; + else + { + struct ZebraRecStream stream; + return_code = zebra_create_record_stream(zh, &rec, &stream); + if (return_code == 0) + { + extract_snippet(zh, snippets, &stream, + rt, recTypeClientData); + + stream.destroy(&stream); + } + } + rec_free(&rec); + } + return return_code; +} + +static int snippet_fetch(ZebraHandle zh, const char *setname, + zint sysno, ODR odr, + const char *elemsetname, + const Odr_oid *input_format, + const Odr_oid **output_format, + char **rec_bufp, int *rec_lenp) +{ + zebra_snippets *rec_snippets = zebra_snippets_create(); + int return_code = zebra_get_rec_snippets(zh, sysno, rec_snippets); + + if (!return_code) + { + WRBUF wrbuf = wrbuf_alloc(); + zebra_snippets *hit_snippet = zebra_snippets_create(); + + zebra_snippets_hit_vector(zh, setname, sysno, hit_snippet); #if 0 - /* for debugging purposes */ - yaz_log(YLOG_LOG, "DOC SNIPPET:"); - zebra_snippets_log(retrieveCtrl.doc_snippet, YLOG_LOG); - yaz_log(YLOG_LOG, "HIT SNIPPET:"); - zebra_snippets_log(retrieveCtrl.hit_snippet, YLOG_LOG); + /* for debugging purposes */ + yaz_log(YLOG_LOG, "---------------------------"); + yaz_log(YLOG_LOG, "REC SNIPPET:"); + zebra_snippets_log(rec_snippet, YLOG_LOG, 1); + yaz_log(YLOG_LOG, "---------------------------"); + yaz_log(YLOG_LOG, "HIT SNIPPET:"); + zebra_snippets_log(hit_snippet, YLOG_LOG, 1); #endif - snippet = zebra_snippets_window(retrieveCtrl.doc_snippet, - retrieveCtrl.hit_snippet, - 10); + + zebra_snippets_ring(rec_snippets, hit_snippet, 5, 5); + #if 0 - /* for debugging purposes */ - yaz_log(YLOG_LOG, "WINDOW SNIPPET:"); - zebra_snippets_log(snippet, YLOG_LOG); + yaz_log(YLOG_LOG, "---------------------------"); + yaz_log(YLOG_LOG, "RING SNIPPET:"); + zebra_snippets_log(rec_snippets, YLOG_LOG, 1); #endif - (*rt->retrieve)(clientData, &retrieveCtrl); + snippet_xml_record(zh, wrbuf, rec_snippets); + + *output_format = yaz_oid_recsyn_xml; + + if (return_code == 0) + { + *rec_lenp = wrbuf_len(wrbuf); + *rec_bufp = odr_strdup(odr, wrbuf_cstr(wrbuf)); + } + wrbuf_destroy(wrbuf); + zebra_snippets_destroy(hit_snippet); + } + zebra_snippets_destroy(rec_snippets); + return return_code; +} + +struct term_collect { + const char *term; + int oc; + zint set_occur; +}; + +zint freq_term(ZebraHandle zh, int ord, const char *term, RSET rset_set) +{ + struct rset_key_control *kc = zebra_key_control_create(zh); + char ord_buf[IT_MAX_WORD]; + int ord_len = key_SU_encode(ord, ord_buf); + char *info; + zint hits = 0; + NMEM nmem = nmem_create(); + + strcpy(ord_buf + ord_len, term); + + info = dict_lookup(zh->reg->dict, ord_buf); + if (info) + { + ISAM_P isam_p; + RSET rsets[2], rset; + memcpy(&isam_p, info+1, sizeof(ISAM_P)); + + rsets[0] = zebra_create_rset_isam(zh, nmem, kc, kc->scope, isam_p, 0); + rsets[1] = rset_dup(rset_set); + + rset = rset_create_and(nmem, kc, kc->scope, 2, rsets); + + zebra_count_set(zh, rset, &hits, zh->approx_limit); + + rset_delete(rsets[0]); + rset_delete(rset); + } + (*kc->dec)(kc); + nmem_destroy(nmem); + return hits; +} + +void term_collect_freq(ZebraHandle zh, + struct term_collect *col, int no_terms_collect, + int ord, RSET rset) +{ + int i; + for (i = 0; i < no_terms_collect; i++) + { + if (col[i].term) + col[i].set_occur = freq_term(zh, ord, col[i].term, rset); + } +} + +struct term_collect *term_collect_create(zebra_strmap_t sm, + int no_terms_collect, + NMEM nmem) +{ + const char *term; + void *data_buf; + size_t data_len; + zebra_strmap_it it; + struct term_collect *col = nmem_malloc(nmem, + sizeof *col *no_terms_collect); + int i; + for (i = 0; i < no_terms_collect; i++) + { + col[i].term = 0; + col[i].oc = 0; + col[i].set_occur = 0; + } + /* iterate over terms and collect the most frequent ones */ + it = zebra_strmap_it_create(sm); + while ((term = zebra_strmap_it_next(it, &data_buf, &data_len))) + { + int oc = *(int*) data_buf; + int j = 0; + /* insertion may be slow but terms terms will be "infrequent" and + thus number of iterations should be small below */ + while (j < no_terms_collect && oc > col[j].oc) + j++; + if (j) + { + --j; + memmove(col, col+1, sizeof(*col) * j); + col[j].term = term; + col[j].oc = oc; + } + } + zebra_strmap_it_destroy(it); + return col; +} + +static ZEBRA_RES facet_fetch(ZebraHandle zh, const char *setname, + ODR odr, + const char *elemsetname, + const Odr_oid *input_format, + const Odr_oid **output_format, + char **rec_bufp, int *rec_lenp) +{ + zint *pos_array; + int i; + int num_recs = 10; /* number of records to analyze */ + int no_collect_terms = 20; /* number of term candidates */ + ZebraMetaRecord *poset; + ZEBRA_RES ret = ZEBRA_OK; + int *ord_array; + WRBUF wr = wrbuf_alloc(); + + int no_ord = 0; + struct index_spec *spec, *spec_list; + int error; - zebra_snippets_destroy(snippet); + + spec_list = parse_index_spec(elemsetname, odr_getmem(odr), &error); + + if (!spec_list || error) + return YAZ_BIB1_SPECIFIED_ELEMENT_SET_NAME_NOT_VALID_FOR_SPECIFIED_; + + for (spec = spec_list; spec; spec = spec->next) + { + if (!spec->index_type) + return YAZ_BIB1_SPECIFIED_ELEMENT_SET_NAME_NOT_VALID_FOR_SPECIFIED_; + no_ord++; + } + + ord_array = odr_malloc(odr, sizeof(*ord_array) * no_ord); + + for (spec = spec_list, i = 0; spec; spec = spec->next, i++) + { + int ord = zebraExplain_lookup_attr_str(zh->reg->zei, + zinfo_index_category_index, + spec->index_type, + spec->index_name); + if (ord == -1) + { + return YAZ_BIB1_SPECIFIED_ELEMENT_SET_NAME_NOT_VALID_FOR_SPECIFIED_; + } + ord_array[i] = ord; + } + + pos_array = (zint *) xmalloc(num_recs * sizeof(*pos_array)); + for (i = 0; i < num_recs; i++) + pos_array[i] = i+1; + poset = zebra_meta_records_create(zh, setname, num_recs, pos_array); + if (!poset) + { + zebra_setError(zh, YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST, + setname); + xfree(pos_array); + ret = ZEBRA_FAIL; } else { - (*rt->retrieve)(clientData, &retrieveCtrl); + zebra_strmap_t *map_array + = odr_malloc(odr, sizeof *map_array * no_ord); + for (i = 0; i < no_ord; i++) + map_array[i] = zebra_strmap_create(); + + for (i = 0; i < num_recs; i++) + { + int j; + zint sysnos[MAX_SYSNOS_PER_RECORD]; + int no_sysnos = MAX_SYSNOS_PER_RECORD; + if (!poset[i].sysno) + continue; + ret = zebra_result_recid_to_sysno(zh, setname, + poset[i].sysno, + sysnos, &no_sysnos); + assert(no_sysnos > 0); + for (j = 0; j < no_sysnos; j++) + { + size_t slen; + const char *str; + struct it_key key_in; + Record rec = rec_get(zh->reg->records, sysnos[j]); + zebra_rec_keys_t keys = zebra_rec_keys_open(); + zebra_rec_keys_set_buf(keys, rec->info[recInfo_delKeys], + rec->size[recInfo_delKeys], 0); + + if (zebra_rec_keys_rewind(keys)) + { + while (zebra_rec_keys_read(keys, &str, &slen, &key_in)) + { + int i; + struct index_spec *spec; + for (spec = spec_list, i = 0; i < no_ord; + i++, spec = spec->next) + { + int ord = CAST_ZINT_TO_INT(key_in.mem[0]); + if (ord == ord_array[i]) + { + int *freq; + zebra_strmap_t sm = map_array[i]; + + freq = zebra_strmap_lookup(sm, str, 0, 0); + if (freq) + (*freq)++; + else + { + int v = 1; + zebra_strmap_add(sm, str, &v, sizeof v); + } + } + } + } + } + zebra_rec_keys_close(keys); + rec_free(&rec); + } + } + wrbuf_puts(wr, "\n"); + for (spec = spec_list, i = 0; i < no_ord; i++, spec = spec->next) + { + int j; + NMEM nmem = nmem_create(); + struct term_collect *col = term_collect_create(map_array[i], + no_collect_terms, + nmem); + term_collect_freq(zh, col, no_collect_terms, ord_array[i], + resultSetRef(zh, setname)); + + wrbuf_printf(wr, " \n", + spec->index_type, spec->index_name); + for (j = 0; j < no_collect_terms; j++) + { + if (col[j].term) + { + char dst_buf[IT_MAX_WORD]; + zebra_term_untrans(zh, spec->index_type, dst_buf, col[j].term); + wrbuf_printf(wr, " "); + wrbuf_xmlputs(wr, dst_buf); + wrbuf_printf(wr, "\n"); + } + } + wrbuf_puts(wr, " \n"); + nmem_destroy(nmem); + } + wrbuf_puts(wr, "\n"); + for (i = 0; i < no_ord; i++) + zebra_strmap_destroy(map_array[i]); + } + + + *rec_bufp = odr_strdup(odr, wrbuf_cstr(wr)); + wrbuf_destroy(wr); + *rec_lenp = strlen(*rec_bufp); + *output_format = yaz_oid_recsyn_xml; + + xfree(pos_array); + zebra_meta_records_destroy(zh, poset, num_recs); + return ret; +} + +int zebra_special_fetch(ZebraHandle zh, const char *setname, + zint sysno, int score, ODR odr, + const char *elemsetname, + const Odr_oid *input_format, + const Odr_oid **output_format, + char **rec_bufp, int *rec_lenp) +{ + Record rec; + + /* set output variables before processing possible error states */ + /* *rec_lenp = 0; */ + + if (elemsetname && 0 == strncmp(elemsetname, "facet", 5)) + { + return facet_fetch(zh, setname, odr, + elemsetname + 5, + input_format, output_format, + rec_bufp, rec_lenp); + } + + if (elemsetname && 0 == strcmp(elemsetname, "snippet")) + { + return snippet_fetch(zh, setname, sysno, odr, + elemsetname + 7, + input_format, output_format, + rec_bufp, rec_lenp); + } + + /* processing zebra::meta::sysno elemset without fetching binary data */ + if (elemsetname && 0 == strcmp(elemsetname, "meta::sysno")) + { + int ret = 0; + WRBUF wrbuf = wrbuf_alloc(); + if (!oid_oidcmp(input_format, yaz_oid_recsyn_sutrs)) + { + wrbuf_printf(wrbuf, ZINT_FORMAT, sysno); + *output_format = input_format; + } + else if (!oid_oidcmp(input_format, yaz_oid_recsyn_xml)) + { + wrbuf_printf(wrbuf, ZEBRA_XML_HEADER_STR + " sysno=\"" ZINT_FORMAT "\"/>\n", + sysno); + *output_format = input_format; + } + *rec_lenp = wrbuf_len(wrbuf); + if (*rec_lenp) + *rec_bufp = odr_strdup(odr, wrbuf_cstr(wrbuf)); + else + ret = YAZ_BIB1_NO_SYNTAXES_AVAILABLE_FOR_THIS_REQUEST; + wrbuf_destroy(wrbuf); + return ret; + } + + /* processing special elementsetname zebra::index:: for sort elements */ + if (elemsetname && 0 == strncmp(elemsetname, "index", 5)) + { + int ret = zebra_special_sort_fetch(zh, sysno, odr, + elemsetname + 5, + input_format, output_format, + rec_bufp, rec_lenp); + if (ret != -1) + return ret; + /* not a sort index so we continue to get the full record */ + } + + + /* fetching binary record up for all other display elementsets */ + rec = rec_get(zh->reg->records, sysno); + if (!rec) + { + yaz_log(YLOG_WARN, "rec_get fail on sysno=" ZINT_FORMAT, sysno); + return YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS; + } + + /* processing special elementsetnames zebra::data */ + if (elemsetname && 0 == strcmp(elemsetname, "data")) + { + struct ZebraRecStream stream; + RecordAttr *recordAttr = rec_init_attr(zh->reg->zei, rec); + zebra_create_record_stream(zh, &rec, &stream); + *output_format = input_format; + *rec_lenp = recordAttr->recordSize; + *rec_bufp = (char *) odr_malloc(odr, *rec_lenp); + stream.readf(&stream, *rec_bufp, *rec_lenp); + stream.destroy(&stream); + rec_free(&rec); + return 0; + } + + /* only accept XML and SUTRS requests from now */ + if (oid_oidcmp(input_format, yaz_oid_recsyn_xml) + && oid_oidcmp(input_format, yaz_oid_recsyn_sutrs)) + { + yaz_log(YLOG_WARN, "unsupported format for element set zebra::%s", + elemsetname); + return YAZ_BIB1_NO_SYNTAXES_AVAILABLE_FOR_THIS_REQUEST; + } + + + /* processing special elementsetnames zebra::meta:: */ + if (elemsetname && 0 == strcmp(elemsetname, "meta")) + { + int ret = 0; + WRBUF wrbuf = wrbuf_alloc(); + RecordAttr *recordAttr = rec_init_attr(zh->reg->zei, rec); + + if (!oid_oidcmp(input_format, yaz_oid_recsyn_xml)) + { + *output_format = input_format; + + wrbuf_printf(wrbuf, ZEBRA_XML_HEADER_STR + " sysno=\"" ZINT_FORMAT "\"", sysno); + retrieve_puts_attr(wrbuf, "base", rec->info[recInfo_databaseName]); + retrieve_puts_attr(wrbuf, "file", rec->info[recInfo_filename]); + retrieve_puts_attr(wrbuf, "type", rec->info[recInfo_fileType]); + if (score >= 0) + retrieve_puts_attr_int(wrbuf, "score", score); + + wrbuf_printf(wrbuf, + " rank=\"" ZINT_FORMAT "\"" + " size=\"%i\"" + " set=\"zebra::%s\"/>\n", + recordAttr->staticrank, + recordAttr->recordSize, + elemsetname); + } + else if (!oid_oidcmp(input_format, yaz_oid_recsyn_sutrs)) + { + *output_format = input_format; + wrbuf_printf(wrbuf, "sysno " ZINT_FORMAT "\n", sysno); + retrieve_puts_str(wrbuf, "base", rec->info[recInfo_databaseName]); + retrieve_puts_str(wrbuf, "file", rec->info[recInfo_filename]); + retrieve_puts_str(wrbuf, "type", rec->info[recInfo_fileType]); + if (score >= 0) + retrieve_puts_int(wrbuf, "score", score); + + wrbuf_printf(wrbuf, + "rank " ZINT_FORMAT "\n" + "size %i\n" + "set zebra::%s\n", + recordAttr->staticrank, + recordAttr->recordSize, + elemsetname); + } + *rec_lenp = wrbuf_len(wrbuf); + if (*rec_lenp) + *rec_bufp = odr_strdup(odr, wrbuf_cstr(wrbuf)); + else + ret = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS; + + wrbuf_destroy(wrbuf); + rec_free(&rec); + return ret; + } + + /* processing special elementsetnames zebra::index:: */ + if (elemsetname && 0 == strncmp(elemsetname, "index", 5)) + { + int ret = zebra_special_index_fetch(zh, sysno, odr, rec, + elemsetname + 5, + input_format, output_format, + rec_bufp, rec_lenp); + + rec_free(&rec); + return ret; + } + + if (rec) + rec_free(&rec); + return YAZ_BIB1_SPECIFIED_ELEMENT_SET_NAME_NOT_VALID_FOR_SPECIFIED_; +} + + +int zebra_record_fetch(ZebraHandle zh, const char *setname, + zint sysno, int score, + ODR odr, + const Odr_oid *input_format, Z_RecordComposition *comp, + const Odr_oid **output_format, + char **rec_bufp, int *rec_lenp, char **basenamep, + char **addinfo) +{ + Record rec; + char *fname, *file_type, *basename; + const char *elemsetname; + struct ZebraRecStream stream; + RecordAttr *recordAttr; + void *clientData; + int return_code = 0; + zint sysnos[MAX_SYSNOS_PER_RECORD]; + int no_sysnos = MAX_SYSNOS_PER_RECORD; + ZEBRA_RES res; + + res = zebra_result_recid_to_sysno(zh, setname, sysno, sysnos, &no_sysnos); + if (res != ZEBRA_OK) + return ZEBRA_FAIL; + + sysno = sysnos[0]; + *basenamep = 0; + *addinfo = 0; + elemsetname = yaz_get_esn(comp); + + /* processing zebra special elementset names of form 'zebra:: */ + if (elemsetname && 0 == strncmp(elemsetname, "zebra::", 7)) + return zebra_special_fetch(zh, setname, sysno, score, odr, + elemsetname + 7, + input_format, output_format, + rec_bufp, rec_lenp); + + + /* processing all other element set names */ + rec = rec_get(zh->reg->records, sysno); + if (!rec) + { + yaz_log(YLOG_WARN, "rec_get fail on sysno=" ZINT_FORMAT, sysno); + *basenamep = 0; + return YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS; } - zebra_snippets_destroy(retrieveCtrl.doc_snippet); - *output_format = retrieveCtrl.output_format; - *rec_bufp = (char *) retrieveCtrl.rec_buf; - *rec_lenp = retrieveCtrl.rec_len; + recordAttr = rec_init_attr(zh->reg->zei, rec); - stream.destroy(&stream); + file_type = rec->info[recInfo_fileType]; + fname = rec->info[recInfo_filename]; + basename = rec->info[recInfo_databaseName]; + *basenamep = (char *) odr_malloc(odr, strlen(basename)+1); + strcpy(*basenamep, basename); + + yaz_log(YLOG_DEBUG, "retrieve localno=" ZINT_FORMAT " score=%d", + sysno, score); + + return_code = zebra_create_record_stream(zh, &rec, &stream); - rec_rm (&rec); + if (rec) + { + RecType rt; + struct recRetrieveCtrl retrieveCtrl; + + retrieveCtrl.stream = &stream; + retrieveCtrl.fname = fname; + retrieveCtrl.localno = sysno; + retrieveCtrl.staticrank = recordAttr->staticrank; + retrieveCtrl.score = score; + retrieveCtrl.recordSize = recordAttr->recordSize; + retrieveCtrl.odr = odr; + retrieveCtrl.input_format = retrieveCtrl.output_format = input_format; + retrieveCtrl.comp = comp; + retrieveCtrl.encoding = zh->record_encoding; + retrieveCtrl.diagnostic = 0; + retrieveCtrl.addinfo = 0; + retrieveCtrl.dh = zh->reg->dh; + retrieveCtrl.res = zh->res; + retrieveCtrl.rec_buf = 0; + retrieveCtrl.rec_len = -1; + + if (!(rt = recType_byName(zh->reg->recTypes, zh->res, + file_type, &clientData))) + { + char addinfo_str[100]; + + sprintf(addinfo_str, "Could not handle record type %.40s", + file_type); + + *addinfo = odr_strdup(odr, addinfo_str); + return_code = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS; + } + else + { + (*rt->retrieve)(clientData, &retrieveCtrl); + return_code = retrieveCtrl.diagnostic; + + *output_format = retrieveCtrl.output_format; + *rec_bufp = (char *) retrieveCtrl.rec_buf; + *rec_lenp = retrieveCtrl.rec_len; + *addinfo = retrieveCtrl.addinfo; + } + + stream.destroy(&stream); + rec_free(&rec); + } - *addinfo = retrieveCtrl.addinfo; - return retrieveCtrl.diagnostic; + return return_code; } /*