-/* $Id: retrieve.c,v 1.48 2006-11-13 13:53:49 marc 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.
#include "index.h"
#include <yaz/diagbib1.h>
+#include <yaz/snprintf.h>
#include <direntz.h>
+#include <yaz/oid_db.h>
+#include <zebra_strmap.h>
-static void parse_zebra_elem(const char *elem,
- const char **index, size_t *index_len,
- const char **type, size_t *type_len)
+#define MAX_SYSNOS_PER_RECORD 40
+
+#define ZEBRA_XML_HEADER_STR "<record xmlns=\"http://www.indexdata.com/zebra/\""
+
+static int zebra_create_record_stream(ZebraHandle zh,
+ Record *rec,
+ struct ZebraRecStream *stream)
{
- *type = 0;
- *type_len = 0;
+ RecordAttr *recordAttr = rec_init_attr(zh->reg->zei, *rec);
+
+ if ((*rec)->size[recInfo_storeData] > 0)
+ zebra_create_stream_mem(stream, (*rec)->info[recInfo_storeData],
+ (*rec)->size[recInfo_storeData]);
+ else
+ {
+ 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);
+ }
+ 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)
{
- const char *cp = strchr(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) /* no colon */
+ if (!cp) /* index, no colon, no type */
{
*index = elem;
*index_len = strlen(elem);
}
- else if (cp[1] == '\0') /* 'index:' */
+ else if (cp[1] == '\0') /* colon, but no following type */
{
- *index = elem;
- *index_len = cp - elem;
+ return 0;
}
- else
+ else /* index, colon and type */
{
*index = elem;
*index_len = cp - elem;
*type_len = strlen(cp+1);
}
}
+ return 1;
}
-int zebra_storekeys_fetch(ZebraHandle zh, SYSNO sysno, ODR odr,
- Record rec,
- const char *element_set,
- oid_value input_format,
- oid_value *output_format,
- char **rec_bufp, int *rec_lenp)
+
+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;
-
- int return_code = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
+ char retrieval_index_cstr[256];
+ char retrieval_type_cstr[256];
+ int ord;
- WRBUF wrbuf = wrbuf_alloc();
+ /* 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 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 (!oid_oidcmp(input_format, yaz_oid_recsyn_xml))
+ {
+ *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 name=\"%s\"",
+ string_index);
+ wrbuf_printf(wrbuf, " type=\"%s\">", index_type);
+ wrbuf_xmlputs(wrbuf, dst_buf);
+ wrbuf_printf(wrbuf, "</index>\n");
+ wrbuf_printf(wrbuf, "</record>\n");
+ }
+ 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 (input_format != VAL_TEXT_XML
- && input_format != VAL_SUTRS)
+ 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",
- element_set);
- *output_format = VAL_NONE;
- return return_code;
+ elemsetname);
+ *output_format = 0;
+ return YAZ_BIB1_NO_SYNTAXES_AVAILABLE_FOR_THIS_REQUEST;
}
-
- keys = zebra_rec_keys_open();
- zebra_rec_keys_set_buf(keys,
- rec->info[recInfo_delKeys],
- rec->size[recInfo_delKeys],
- 0);
-
- parse_zebra_elem(element_set,
+ if (!parse_zebra_elem(elemsetname,
&retrieval_index, &retrieval_index_len,
- &retrieval_type, &retrieval_type_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 (retrieval_index_len < sizeof(retrieval_index_cstr) -1)
+ {
+ 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_;
+ }
+ }
+ 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))
+ 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 (!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;
-
- if (input_format == VAL_TEXT_XML)
- {
- *output_format = VAL_TEXT_XML;
- /*wrbuf_printf(wrbuf,
- "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");*/
-
- wrbuf_printf(wrbuf,
- "<record xmlns="
- "\"http://www.indexdata.com/zebra/\""
- " sysno=\"" ZINT_FORMAT "\""
- " set=\"zebra::%s\">\n",
- sysno, element_set);
- }
- else if (input_format == VAL_SUTRS)
- *output_format = VAL_SUTRS;
-
-
- while(zebra_rec_keys_read(keys, &str, &slen, &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 *index_type;
const char *db = 0;
const char *string_index = 0;
size_t string_index_len;
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
- || (retrieval_type_len == 1
- && retrieval_type[0] == index_type))
+ || !strcmp(retrieval_type_cstr, index_type))
{
-
- if (input_format == VAL_TEXT_XML)
+ 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, " <index name=\"%s\"",
string_index);
-
- wrbuf_printf(wrbuf, " type=\"%c\"", index_type);
-
+
+ wrbuf_printf(wrbuf, " type=\"%s\"", index_type);
+
wrbuf_printf(wrbuf, " seq=\"" ZINT_FORMAT "\">",
- key_in.mem[key_in.len -1]);
-
- zebra_term_untrans(zh, index_type, dst_buf, str);
+ key_in.mem[key_in.len -1]);
+
wrbuf_xmlputs(wrbuf, dst_buf);
wrbuf_printf(wrbuf, "</index>\n");
}
- else if (input_format == VAL_SUTRS)
+ else
{
wrbuf_printf(wrbuf, "%s ", string_index);
-
- wrbuf_printf(wrbuf, "%c", index_type);
-
+
+ wrbuf_printf(wrbuf, "%s", index_type);
+
for (i = 1; i < key_in.len; i++)
wrbuf_printf(wrbuf, " " ZINT_FORMAT,
key_in.mem[i]);
-
- zebra_term_untrans(zh, index_type, dst_buf, str);
+
wrbuf_printf(wrbuf, " %s", dst_buf);
-
+
wrbuf_printf(wrbuf, "\n");
}
+ }
+
}
}
}
- if (input_format == VAL_TEXT_XML)
+ if (!oid_oidcmp(input_format, yaz_oid_recsyn_xml))
+ wrbuf_printf(wrbuf, "</record>\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)
+ {
+ if (doc_w->mark)
+ {
+ const char *index_type;
+ const char *db = 0;
+ const char *string_index = 0;
+
+ zebraExplain_lookup_ord(zh->reg->zei, doc_w->ord,
+ &index_type, &db, &string_index);
+
+ if (mark_state == 0)
{
- wrbuf_printf(wrbuf, "</record>\n");
+ wrbuf_printf(wrbuf, " <snippet name=\"%s\"", string_index);
+ wrbuf_printf(wrbuf, " type=\"%s\">", index_type);
}
+ if (doc_w->match)
+ wrbuf_puts(wrbuf, "<s>");
+ /* 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, "</s>");
+ }
+ else if (mark_state == 1)
+ {
+ wrbuf_puts(wrbuf, "</snippet>\n");
+ }
+ mark_state = doc_w->mark;
}
-
- *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 (mark_state == 1)
+ {
+ wrbuf_puts(wrbuf, "</snippet>\n");
+ }
+ wrbuf_printf(wrbuf, "</record>");
}
-
-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)
+
+int zebra_get_rec_snippets(ZebraHandle zh, zint sysno,
+ zebra_snippets *snippets)
{
- Record rec;
- char *fname, *file_type, *basename;
- struct ZebraRecStream stream;
- RecordAttr *recordAttr;
- void *clientData;
- int raw_mode = 0;
int return_code = 0;
-
- *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);
+ Record rec = rec_get(zh->reg->records, sysno);
if (!rec)
{
- yaz_log (YLOG_DEBUG, "rec_get fail on sysno=" ZINT_FORMAT, sysno);
- *basenamep = 0;
- return YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
+ yaz_log(YLOG_WARN, "rec_get fail on sysno=" ZINT_FORMAT, sysno);
+ return_code = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
}
- recordAttr = rec_init_attr (zh->reg->zei, rec);
+ else
+ {
+ const char *file_type = rec->info[recInfo_fileType];
+ void *recTypeClientData;
+ RecType rt = recType_byName(zh->reg->recTypes, zh->res,
+ file_type, &recTypeClientData);
- 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 (!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);
- if (comp && comp->which == Z_RecordComp_simple
- && comp->u.simple->which == Z_ElementSetNames_generic
- && strncmp(comp->u.simple->u.generic, "zebra::", 7) == 0)
+ 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)
{
- int r = zebra_storekeys_fetch(zh, sysno, odr, rec,
- comp->u.simple->u.generic + 7,
- input_format, output_format,
- rec_bufp, rec_lenp);
+ WRBUF wrbuf = wrbuf_alloc();
+ zebra_snippets *hit_snippet = zebra_snippets_create();
- rec_free(&rec);
- return r;
+ zebra_snippets_hit_vector(zh, setname, sysno, hit_snippet);
+
+#if 0
+ /* 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
+
+ zebra_snippets_ring(rec_snippets, hit_snippet, 5, 5);
+
+#if 0
+ yaz_log(YLOG_LOG, "---------------------------");
+ yaz_log(YLOG_LOG, "RING SNIPPET:");
+ zebra_snippets_log(rec_snippets, YLOG_LOG, 1);
+#endif
+ 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;
+}
- if (comp && comp->which == Z_RecordComp_simple &&
- comp->u.simple->which == Z_ElementSetNames_generic &&
- !strcmp (comp->u.simple->u.generic, "R"))
+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++)
{
- raw_mode = 1;
+ if (col[i].term)
+ col[i].set_occur = freq_term(zh, ord, col[i].term, rset);
}
- yaz_log (YLOG_DEBUG, "retrieve localno=" ZINT_FORMAT " score=%d",
- sysno, score);
- if (rec->size[recInfo_storeData] > 0)
+}
+
+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++)
{
- zebra_create_stream_mem(&stream, rec->info[recInfo_storeData],
- rec->size[recInfo_storeData]);
+ 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;
+
+
+ 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
{
- char full_rep[1024];
- int fd;
+ 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();
- if (zh->path_reg && !yaz_is_abspath (fname))
+ for (i = 0; i < num_recs; i++)
{
- strcpy (full_rep, zh->path_reg);
- strcat (full_rep, "/");
- strcat (full_rep, fname);
+ 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);
+ }
}
- else
- strcpy (full_rep, fname);
+ wrbuf_puts(wr, "<facets>\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, " <facet type=\"%s\" index=\"%s\">\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, " <term coccur=\"%d\"", col[j].oc);
+ if (col[j].set_occur)
+ wrbuf_printf(wr, " occur=\"" ZINT_FORMAT "\"",
+ col[j].set_occur);
+ wrbuf_printf(wr, ">");
+ wrbuf_xmlputs(wr, dst_buf);
+ wrbuf_printf(wr, "</term>\n");
+ }
+ }
+ wrbuf_puts(wr, " </facet>\n");
+ nmem_destroy(nmem);
+ }
+ wrbuf_puts(wr, "</facets>\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);
+ }
- if ((fd = open (full_rep, O_BINARY|O_RDONLY)) == -1)
+ /* 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))
{
- yaz_log (YLOG_WARN|YLOG_ERRNO, "Retrieve fail; missing file: %s",
- full_rep);
- rec_free(&rec);
- return 14;
+ 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;
}
- zebra_create_stream_fd(&stream, fd, recordAttr->recordOffset);
+ *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;
}
- if (raw_mode)
+ /* processing special elementsetname zebra::index:: for sort elements */
+ if (elemsetname && 0 == strncmp(elemsetname, "index", 5))
{
- *output_format = VAL_SUTRS;
+ 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;
}
- else
+
+ /* 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;
+ }
+
+
+ recordAttr = rec_init_attr(zh->reg->zei, rec);
+
+ 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);
+
+ if (rec)
{
- /* snippets code */
- zebra_snippets *snippet;
- zebra_rec_keys_t reckeys = zebra_rec_keys_open();
RecType rt;
struct recRetrieveCtrl retrieveCtrl;
retrieveCtrl.res = zh->res;
retrieveCtrl.rec_buf = 0;
retrieveCtrl.rec_len = -1;
- retrieveCtrl.hit_snippet = hit_snippet;
- retrieveCtrl.doc_snippet = zebra_snippets_create();
- zebra_rec_keys_set_buf(reckeys,
- rec->info[recInfo_delKeys],
- rec->size[recInfo_delKeys],
- 0);
- zebra_rec_keys_to_snippets(zh, reckeys, retrieveCtrl.doc_snippet);
- zebra_rec_keys_close(reckeys);
-
-#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);
-#endif
- snippet = zebra_snippets_window(retrieveCtrl.doc_snippet,
- retrieveCtrl.hit_snippet,
- 10);
-#if 0
- /* for debugging purposes */
- yaz_log(YLOG_LOG, "WINDOW SNIPPET:");
- zebra_snippets_log(snippet, YLOG_LOG);
-#endif
-
- if (!(rt = recType_byName (zh->reg->recTypes, zh->res,
- file_type, &clientData)))
+ 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
*rec_lenp = retrieveCtrl.rec_len;
*addinfo = retrieveCtrl.addinfo;
}
- zebra_snippets_destroy(snippet);
- zebra_snippets_destroy(retrieveCtrl.doc_snippet);
+
+ stream.destroy(&stream);
+ rec_free(&rec);
}
- stream.destroy(&stream);
- rec_free(&rec);
return return_code;
}
projects / idzebra-moved-to-github.git / blobdiff