/* $Id: zebraapi.c,v 1.120.2.4 2005/01/23 14:59:42 adam Exp $
Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
Index Data Aps
This file is part of the Zebra server.
Zebra is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Zebra; see the file LICENSE.zebra. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
#include <assert.h>
#include <stdio.h>
#ifdef WIN32
#include <io.h>
#include <process.h>
#include <direct.h>
#else
#include <unistd.h>
#endif
#include <yaz/log.h>
#include <yaz/diagbib1.h>
#include <yaz/pquery.h>
#include <yaz/sortspec.h>
#include "index.h"
#include <charmap.h>
#include "zebraapi.h"
/* simple asserts to validate the most essential input args */
#define ASSERTZH assert(zh && zh->service)
#define ASSERTZHRES assert(zh && zh->service && zh->res)
#define ASSERTZS assert(zs)
/* A simple log macro */
/* don't break with older yazen that lack log_app2 */
#ifdef LOG_APP2
#define LOG_API LOG_APP2
#else
#define LOG_API LOG_DEBUG
#endif
static Res zebra_open_res (ZebraHandle zh);
static void zebra_close_res (ZebraHandle zh);
static void zebra_chdir (ZebraService zs)
{
const char *dir ;
ASSERTZS;
yaz_log(LOG_API,"zebra_chdir");
dir = res_get (zs->global_res, "chdir");
if (!dir)
return;
logf (LOG_DEBUG, "chdir %s", dir);
#ifdef WIN32
_chdir(dir);
#else
chdir (dir);
#endif
}
static void zebra_flush_reg (ZebraHandle zh)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_flush_reg");
zh->errCode=0;
zebraExplain_flush (zh->reg->zei, zh);
extract_flushWriteKeys (zh,1 /* final */);
zebra_index_merge (zh );
}
static struct zebra_register *zebra_register_open (ZebraService zs,
const char *name,
int rw, int useshadow,
Res res,
const char *reg_path);
static void zebra_register_close (ZebraService zs, struct zebra_register *reg);
ZebraHandle zebra_open (ZebraService zs)
{
ZebraHandle zh;
const char *default_encoding;
ASSERTZS;
yaz_log(LOG_API,"zebra_open");
if (!zs)
return 0;
zh = (ZebraHandle) xmalloc (sizeof(*zh));
yaz_log (LOG_DEBUG, "zebra_open zs=%p returns %p", zs, zh);
zh->service = zs;
zh->reg = 0; /* no register attached yet */
zh->sets = 0;
zh->destroyed = 0;
zh->errCode = 0;
zh->errString = 0;
zh->res = 0;
zh->user_perm = 0;
zh->reg_name = xstrdup ("");
zh->path_reg = 0;
zh->num_basenames = 0;
zh->basenames = 0;
zh->trans_no = 0;
zh->trans_w_no = 0;
zh->lock_normal = 0;
zh->lock_shadow = 0;
zh->shadow_enable = 1;
default_encoding = res_get_def(zs->global_res, "encoding", "ISO-8859-1");
zh->record_encoding = xstrdup (default_encoding);
zh->iconv_to_utf8 =
yaz_iconv_open ("UTF-8", default_encoding);
if (zh->iconv_to_utf8 == 0)
yaz_log (LOG_WARN, "iconv: %s to UTF-8 unsupported",
default_encoding);
zh->iconv_from_utf8 =
yaz_iconv_open (default_encoding, "UTF-8");
if (zh->iconv_to_utf8 == 0)
yaz_log (LOG_WARN, "iconv: UTF-8 to %s unsupported",
default_encoding);
zebra_mutex_cond_lock (&zs->session_lock);
zh->next = zs->sessions;
zs->sessions = zh;
zebra_mutex_cond_unlock (&zs->session_lock);
return zh;
}
ZebraService zebra_start (const char *configName)
{
return zebra_start_res(configName, 0, 0);
}
ZebraService zebra_start_res (const char *configName, Res def_res, Res over_res)
{
Res res;
yaz_log(LOG_API|LOG_LOG,"zebra_start %s",configName);
if ((res = res_open (configName, def_res, over_res)))
{
ZebraService zh = xmalloc (sizeof(*zh));
yaz_log (LOG_DEBUG, "Read resources `%s'", configName);
zh->global_res = res;
zh->configName = xstrdup(configName);
zh->sessions = 0;
zebra_chdir (zh);
zebra_mutex_cond_init (&zh->session_lock);
if (!res_get (zh->global_res, "passwd"))
zh->passwd_db = NULL;
else
{
zh->passwd_db = passwd_db_open ();
if (!zh->passwd_db)
logf (LOG_WARN|LOG_ERRNO, "passwd_db_open failed");
else
passwd_db_file (zh->passwd_db,
res_get (zh->global_res, "passwd"));
}
zh->path_root = res_get (zh->global_res, "root");
return zh;
}
return 0;
}
void zebra_pidfname(ZebraService zs, char *path)
{
zebra_lock_prefix (zs->global_res, path);
strcat(path, "zebrasrv.pid");
}
static
struct zebra_register *zebra_register_open (ZebraService zs, const char *name,
int rw, int useshadow, Res res,
const char *reg_path)
{
struct zebra_register *reg;
int record_compression = REC_COMPRESS_NONE;
const char *recordCompression = 0;
const char *profilePath;
char cwd[1024];
ASSERTZS;
reg = xmalloc (sizeof(*reg));
assert (name);
reg->name = xstrdup (name);
reg->seqno = 0;
reg->last_val = 0;
assert (res);
yaz_log (LOG_LOG|LOG_API, "zebra_register_open rw = %d useshadow=%d p=%p,n=%s,rp=%s",
rw, useshadow, reg, name, reg_path ? reg_path : "(none)");
reg->dh = data1_createx (DATA1_FLAG_XML);
if (!reg->dh)
return 0;
reg->bfs = bfs_create (res_get (res, "register"), reg_path);
if (!reg->bfs)
{
data1_destroy(reg->dh);
return 0;
}
if (useshadow)
bf_cache (reg->bfs, res_get (res, "shadow"));
getcwd(cwd, sizeof(cwd)-1);
profilePath = res_get_def(res, "profilePath", DEFAULT_PROFILE_PATH);
yaz_log(LOG_LOG, "profilePath=%s cwd=%s", profilePath, cwd);
data1_set_tabpath (reg->dh, profilePath);
data1_set_tabroot (reg->dh, reg_path);
reg->recTypes = recTypes_init (reg->dh);
recTypes_default_handlers (reg->recTypes);
reg->zebra_maps = zebra_maps_open (res, reg_path);
reg->rank_classes = NULL;
reg->key_buf = 0;
reg->keys.buf_max = 0;
reg->keys.buf = 0;
reg->sortKeys.buf = 0;
reg->sortKeys.buf_max = 0;
reg->records = 0;
reg->dict = 0;
reg->sortIdx = 0;
reg->isams = 0;
reg->matchDict = 0;
reg->isam = 0;
reg->isamc = 0;
reg->isamd = 0;
reg->isamb = 0;
reg->zei = 0;
reg->matchDict = 0;
reg->key_file_no = 0;
reg->ptr_i=0;
zebraRankInstall (reg, rank1_class);
zebraRankInstall (reg, rankzv_class);
zebraRankInstall (reg, rankliv_class);
recordCompression = res_get_def (res, "recordCompression", "none");
if (!strcmp (recordCompression, "none"))
record_compression = REC_COMPRESS_NONE;
if (!strcmp (recordCompression, "bzip2"))
record_compression = REC_COMPRESS_BZIP2;
if (!(reg->records = rec_open (reg->bfs, rw, record_compression)))
{
logf (LOG_WARN, "rec_open");
return 0;
}
if (rw)
{
reg->matchDict = dict_open (reg->bfs, GMATCH_DICT, 20, 1, 0);
}
if (!(reg->dict = dict_open (reg->bfs, FNAME_DICT, 40, rw, 0)))
{
logf (LOG_WARN, "dict_open");
return 0;
}
if (!(reg->sortIdx = sortIdx_open (reg->bfs, rw)))
{
logf (LOG_WARN, "sortIdx_open");
return 0;
}
if (res_get_match (res, "isam", "s", ISAM_DEFAULT))
{
struct ISAMS_M_s isams_m;
if (!(reg->isams = isams_open (reg->bfs, FNAME_ISAMS, rw,
key_isams_m(res, &isams_m))))
{
logf (LOG_WARN, "isams_open");
return 0;
}
}
if (res_get_match (res, "isam", "i", ISAM_DEFAULT))
{
if (!(reg->isam = is_open (reg->bfs, FNAME_ISAM, key_compare, rw,
sizeof (struct it_key), res)))
{
logf (LOG_WARN, "is_open");
return 0;
}
}
if (res_get_match (res, "isam", "c", ISAM_DEFAULT))
{
struct ISAMC_M_s isamc_m;
if (!(reg->isamc = isc_open (reg->bfs, FNAME_ISAMC,
rw, key_isamc_m(res, &isamc_m))))
{
logf (LOG_WARN, "isc_open");
return 0;
}
}
if (res_get_match (res, "isam", "d", ISAM_DEFAULT))
{
struct ISAMD_M_s isamd_m;
if (!(reg->isamd = isamd_open (reg->bfs, FNAME_ISAMD,
rw, key_isamd_m(res, &isamd_m))))
{
logf (LOG_WARN, "isamd_open");
return 0;
}
}
if (res_get_match (res, "isam", "b", ISAM_DEFAULT))
{
struct ISAMC_M_s isamc_m;
if (!(reg->isamb = isamb_open (reg->bfs, "isamb",
rw, key_isamc_m(res, &isamc_m), 0)))
{
logf (LOG_WARN, "isamb_open");
return 0;
}
}
if (res_get_match (res, "isam", "bc", ISAM_DEFAULT))
{
struct ISAMC_M_s isamc_m;
if (!(reg->isamb = isamb_open (reg->bfs, "isamb",
rw, key_isamc_m(res, &isamc_m), 1)))
{
logf (LOG_WARN, "isamb_open");
return 0;
}
}
if (res_get_match (res, "isam", "null", ISAM_DEFAULT))
{
struct ISAMC_M_s isamc_m;
if (!(reg->isamb = isamb_open (reg->bfs, "isamb",
rw, key_isamc_m(res, &isamc_m), -1)))
{
logf (LOG_WARN, "isamb_open");
return 0;
}
}
reg->zei = zebraExplain_open (reg->records, reg->dh,
res, rw, reg,
explain_extract);
if (!reg->zei)
{
logf (LOG_WARN, "Cannot obtain EXPLAIN information");
return 0;
}
reg->active = 2;
yaz_log (LOG_DEBUG, "zebra_register_open ok p=%p", reg);
return reg;
}
int zebra_admin_shutdown (ZebraHandle zh)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_admin_shutdown");
zh->errCode=0;
zebra_mutex_cond_lock (&zh->service->session_lock);
zh->service->stop_flag = 1;
zebra_mutex_cond_unlock (&zh->service->session_lock);
return 0;
}
int zebra_admin_start (ZebraHandle zh)
{
ZebraService zs;
ASSERTZH;
yaz_log(LOG_API,"zebra_admin_start");
zh->errCode=0;
zs = zh->service;
zebra_mutex_cond_lock (&zs->session_lock);
zebra_mutex_cond_unlock (&zs->session_lock);
return 0;
}
static void zebra_register_close (ZebraService zs, struct zebra_register *reg)
{
ASSERTZS;
yaz_log(LOG_LOG|LOG_API, "zebra_register_close p=%p", reg);
reg->stop_flag = 0;
zebra_chdir (zs);
if (reg->records)
{
zebraExplain_close (reg->zei);
dict_close (reg->dict);
if (reg->matchDict)
dict_close (reg->matchDict);
sortIdx_close (reg->sortIdx);
if (reg->isams)
isams_close (reg->isams);
if (reg->isam)
is_close (reg->isam);
if (reg->isamc)
isc_close (reg->isamc);
if (reg->isamd)
isamd_close (reg->isamd);
if (reg->isamb)
isamb_close (reg->isamb);
rec_close (®->records);
}
recTypes_destroy (reg->recTypes);
zebra_maps_close (reg->zebra_maps);
zebraRankDestroy (reg);
bfs_destroy (reg->bfs);
data1_destroy (reg->dh);
xfree (reg->sortKeys.buf);
xfree (reg->keys.buf);
xfree (reg->key_buf);
xfree (reg->name);
xfree (reg);
}
int zebra_stop(ZebraService zs)
{
if (!zs)
return 0;
yaz_log (LOG_LOG|LOG_API, "zebra_stop");
while (zs->sessions)
{
zebra_close (zs->sessions);
}
zebra_mutex_cond_destroy (&zs->session_lock);
if (zs->passwd_db)
passwd_db_close (zs->passwd_db);
res_close (zs->global_res);
xfree (zs->configName);
xfree (zs);
return 0;
}
int zebra_close (ZebraHandle zh)
{
ZebraService zs;
struct zebra_session **sp;
int i;
yaz_log(LOG_API,"zebra_close");
if (!zh)
return 0;
ASSERTZH;
zh->errCode=0;
zs = zh->service;
yaz_log (LOG_DEBUG, "zebra_close zh=%p", zh);
resultSetDestroy (zh, -1, 0, 0);
if (zh->reg)
zebra_register_close (zh->service, zh->reg);
zebra_close_res (zh);
xfree (zh->record_encoding);
for (i = 0; i < zh->num_basenames; i++)
xfree (zh->basenames[i]);
xfree (zh->basenames);
if (zh->iconv_to_utf8 != 0)
yaz_iconv_close (zh->iconv_to_utf8);
if (zh->iconv_from_utf8 != 0)
yaz_iconv_close (zh->iconv_from_utf8);
zebra_mutex_cond_lock (&zs->session_lock);
zebra_lock_destroy (zh->lock_normal);
zebra_lock_destroy (zh->lock_shadow);
sp = &zs->sessions;
while (1)
{
assert (*sp);
if (*sp == zh)
{
*sp = (*sp)->next;
break;
}
sp = &(*sp)->next;
}
zebra_mutex_cond_unlock (&zs->session_lock);
xfree (zh->reg_name);
xfree (zh->user_perm);
zh->service=0; /* more likely to trigger an assert */
xfree (zh->path_reg);
xfree (zh);
return 0;
}
struct map_baseinfo {
ZebraHandle zh;
NMEM mem;
int num_bases;
char **basenames;
int new_num_bases;
char **new_basenames;
int new_num_max;
};
static Res zebra_open_res (ZebraHandle zh)
{
Res res = 0;
char fname[512];
ASSERTZH;
zh->errCode=0;
if (zh->path_reg)
{
sprintf (fname, "%.200s/zebra.cfg", zh->path_reg);
res = res_open (fname, zh->service->global_res, 0);
if (!res)
res = zh->service->global_res;
}
else if (*zh->reg_name == 0)
{
res = zh->service->global_res;
}
else
{
yaz_log (LOG_WARN, "no register root specified");
return 0; /* no path for register - fail! */
}
return res;
}
static void zebra_close_res (ZebraHandle zh)
{
ASSERTZH;
zh->errCode=0;
if (zh->res != zh->service->global_res)
res_close (zh->res);
zh->res = 0;
}
static int zebra_select_register (ZebraHandle zh, const char *new_reg)
{
ASSERTZH;
zh->errCode=0;
if (zh->res && strcmp (zh->reg_name, new_reg) == 0)
return 0;
if (!zh->res)
{
assert (zh->reg == 0);
assert (*zh->reg_name == 0);
}
else
{
if (zh->reg)
{
resultSetInvalidate (zh);
zebra_register_close (zh->service, zh->reg);
zh->reg = 0;
}
zebra_close_res(zh);
}
xfree (zh->reg_name);
zh->reg_name = xstrdup (new_reg);
xfree (zh->path_reg);
zh->path_reg = 0;
if (zh->service->path_root)
{
zh->path_reg = xmalloc (strlen(zh->service->path_root) +
strlen(zh->reg_name) + 3);
strcpy (zh->path_reg, zh->service->path_root);
if (*zh->reg_name)
{
strcat (zh->path_reg, "/");
strcat (zh->path_reg, zh->reg_name);
}
}
zh->res = zebra_open_res (zh);
if (zh->lock_normal)
zebra_lock_destroy (zh->lock_normal);
zh->lock_normal = 0;
if (zh->lock_shadow)
zebra_lock_destroy (zh->lock_shadow);
zh->lock_shadow = 0;
if (zh->res)
{
char fname[512];
const char *lock_area =res_get (zh->res, "lockDir");
if (!lock_area && zh->path_reg)
res_set (zh->res, "lockDir", zh->path_reg);
sprintf (fname, "norm.%s.LCK", zh->reg_name);
zh->lock_normal =
zebra_lock_create (res_get(zh->res, "lockDir"), fname, 0);
sprintf (fname, "shadow.%s.LCK", zh->reg_name);
zh->lock_shadow =
zebra_lock_create (res_get(zh->res, "lockDir"), fname, 0);
}
return 1;
}
void map_basenames_func (void *vp, const char *name, const char *value)
{
struct map_baseinfo *p = (struct map_baseinfo *) vp;
int i, no;
char fromdb[128], todb[8][128];
no =
sscanf (value, "%127s %127s %127s %127s %127s %127s %127s %127s %127s",
fromdb, todb[0], todb[1], todb[2], todb[3], todb[4],
todb[5], todb[6], todb[7]);
if (no < 2)
return ;
no--;
for (i = 0; i<p->num_bases; i++)
if (p->basenames[i] && !STRCASECMP (p->basenames[i], fromdb))
{
p->basenames[i] = 0;
for (i = 0; i < no; i++)
{
if (p->new_num_bases == p->new_num_max)
return;
p->new_basenames[(p->new_num_bases)++] =
nmem_strdup (p->mem, todb[i]);
}
return;
}
}
void map_basenames (ZebraHandle zh, ODR stream,
int *num_bases, char ***basenames)
{
struct map_baseinfo info;
struct map_baseinfo *p = &info;
int i;
ASSERTZH;
yaz_log(LOG_API,"map_basenames ");
zh->errCode=0;
info.zh = zh;
info.num_bases = *num_bases;
info.basenames = *basenames;
info.new_num_max = 128;
info.new_num_bases = 0;
info.new_basenames = (char **)
odr_malloc (stream, sizeof(*info.new_basenames) * info.new_num_max);
info.mem = stream->mem;
res_trav (zh->service->global_res, "mapdb", &info, map_basenames_func);
for (i = 0; i<p->num_bases; i++)
if (p->basenames[i] && p->new_num_bases < p->new_num_max)
{
p->new_basenames[(p->new_num_bases)++] =
nmem_strdup (p->mem, p->basenames[i]);
}
*num_bases = info.new_num_bases;
*basenames = info.new_basenames;
for (i = 0; i<*num_bases; i++)
logf (LOG_LOG, "base %s", (*basenames)[i]);
}
int zebra_select_default_database(ZebraHandle zh)
{
if (!zh->res)
{
/* no database has been selected - so we select based on
resource setting (including group)
*/
const char *group = res_get(zh->service->global_res, "group");
const char *v = res_get_prefix(zh->service->global_res,
"database", group, "Default");
zebra_select_database(zh, v);
}
return 0;
}
int zebra_select_database (ZebraHandle zh, const char *basename)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_select_database %s",basename);
zh->errCode=0;
return zebra_select_databases (zh, 1, &basename);
}
int zebra_select_databases (ZebraHandle zh, int num_bases,
const char **basenames)
{
int i;
const char *cp;
int len = 0;
char *new_reg = 0;
ASSERTZH;
yaz_log(LOG_API,"zebra_select_databases n=%d [0]=%s",
num_bases,basenames[0]);
zh->errCode=0;
if (num_bases < 1)
{
zh->errCode = 23;
return -1;
}
for (i = 0; i < zh->num_basenames; i++)
xfree (zh->basenames[i]);
xfree (zh->basenames);
zh->num_basenames = num_bases;
zh->basenames = xmalloc (zh->num_basenames * sizeof(*zh->basenames));
for (i = 0; i < zh->num_basenames; i++)
zh->basenames[i] = xstrdup (basenames[i]);
cp = strrchr(basenames[0], '/');
if (cp)
{
len = cp - basenames[0];
new_reg = xmalloc (len + 1);
memcpy (new_reg, basenames[0], len);
new_reg[len] = '\0';
}
else
new_reg = xstrdup ("");
for (i = 1; i<num_bases; i++)
{
const char *cp1;
cp1 = strrchr (basenames[i], '/');
if (cp)
{
if (!cp1)
{
zh->errCode = 23;
return -1;
}
if (len != cp1 - basenames[i] ||
memcmp (basenames[i], new_reg, len))
{
zh->errCode = 23;
return -1;
}
}
else
{
if (cp1)
{
zh->errCode = 23;
return -1;
}
}
}
zebra_select_register (zh, new_reg);
xfree (new_reg);
if (!zh->res)
{
zh->errCode = 109;
return -1;
}
if (!zh->lock_normal || !zh->lock_shadow)
{
zh->errCode = 2;
return -1;
}
return 0;
}
int zebra_search_RPN (ZebraHandle zh, ODR o,
Z_RPNQuery *query, const char *setname, int *hits)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_search_rpn");
zh->errCode=0;
zh->hits = 0;
*hits = 0;
if (zebra_begin_read (zh))
return 1;
zebra_livcode_transform(zh, query);
resultSetAddRPN (zh, odr_extract_mem(o), query,
zh->num_basenames, zh->basenames, setname);
zebra_end_read (zh);
*hits = zh->hits;
return 0;
}
int zebra_records_retrieve (ZebraHandle zh, ODR stream,
const char *setname, Z_RecordComposition *comp,
oid_value input_format, int num_recs,
ZebraRetrievalRecord *recs)
{
ZebraPosSet poset;
int i, *pos_array, ret = 0;
ASSERTZH;
yaz_log(LOG_API,"zebra_records_retrieve n=%d",num_recs);
zh->errCode=0;
if (!zh->res)
{
zh->errCode = 30;
zh->errString = odr_strdup (stream, setname);
return -1;
}
zh->errCode = 0;
if (zebra_begin_read (zh))
return -1;
pos_array = (int *) xmalloc (num_recs * sizeof(*pos_array));
for (i = 0; i<num_recs; i++)
pos_array[i] = recs[i].position;
poset = zebraPosSetCreate (zh, setname, num_recs, pos_array);
if (!poset)
{
logf (LOG_DEBUG, "zebraPosSetCreate error");
zh->errCode = 30;
zh->errString = nmem_strdup (stream->mem, setname);
ret = -1;
}
else
{
for (i = 0; i<num_recs; i++)
{
if (poset[i].term)
{
recs[i].errCode = 0;
recs[i].format = VAL_SUTRS;
recs[i].len = strlen(poset[i].term);
recs[i].buf = poset[i].term;
recs[i].base = poset[i].db;
}
else if (poset[i].sysno)
{
recs[i].errCode =
zebra_record_fetch (zh, poset[i].sysno, poset[i].score,
stream, input_format, comp,
&recs[i].format, &recs[i].buf,
&recs[i].len,
&recs[i].base);
recs[i].errString = NULL;
}
else
{
char num_str[20];
sprintf (num_str, "%d", pos_array[i]);
zh->errCode = 13;
zh->errString = odr_strdup (stream, num_str);
ret = -1;
break;
}
}
zebraPosSetDestroy (zh, poset, num_recs);
}
zebra_end_read (zh);
xfree (pos_array);
return ret;
}
int zebra_scan (ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt,
oid_value attributeset,
int *position, int *num_entries, ZebraScanEntry **entries,
int *is_partial)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_scan");
zh->errCode=0;
if (zebra_begin_read (zh))
{
*entries = 0;
*num_entries = 0;
return 1;
}
rpn_scan (zh, stream, zapt, attributeset,
zh->num_basenames, zh->basenames, position,
num_entries, entries, is_partial, 0, 0);
zebra_end_read (zh);
return 0;
}
int zebra_sort (ZebraHandle zh, ODR stream,
int num_input_setnames, const char **input_setnames,
const char *output_setname, Z_SortKeySpecList *sort_sequence,
int *sort_status)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_sort");
zh->errCode=0;
if (zebra_begin_read (zh))
return 1;
resultSetSort (zh, stream->mem, num_input_setnames, input_setnames,
output_setname, sort_sequence, sort_status);
zebra_end_read(zh);
return 0;
}
int zebra_deleleResultSet(ZebraHandle zh, int function,
int num_setnames, char **setnames,
int *statuses)
{
int i, status;
ASSERTZH;
yaz_log(LOG_API,"zebra_deleleResultSet n=%d",num_setnames);
zh->errCode=0;
if (zebra_begin_read(zh))
return Z_DeleteStatus_systemProblemAtTarget;
switch (function)
{
case Z_DeleteResultSetRequest_list:
resultSetDestroy (zh, num_setnames, setnames, statuses);
break;
case Z_DeleteResultSetRequest_all:
resultSetDestroy (zh, -1, 0, statuses);
break;
}
zebra_end_read (zh);
status = Z_DeleteStatus_success;
for (i = 0; i<num_setnames; i++)
if (statuses[i] == Z_DeleteStatus_resultSetDidNotExist)
status = statuses[i];
return status;
}
int zebra_errCode (ZebraHandle zh)
{
if (zh)
{
yaz_log(LOG_API,"zebra_errCode: %d",zh->errCode);
return zh->errCode;
}
yaz_log(LOG_API,"zebra_errCode: o");
return 0;
}
const char *zebra_errString (ZebraHandle zh)
{
const char *e="";
if (zh)
e= diagbib1_str (zh->errCode);
yaz_log(LOG_API,"zebra_errString: %s",e);
return e;
}
char *zebra_errAdd (ZebraHandle zh)
{
char *a="";
if (zh)
a= zh->errString;
yaz_log(LOG_API,"zebra_errAdd: %s",a);
return a;
}
void zebra_clearError(ZebraHandle zh)
{
if (zh)
{
zh->errCode=0;
zh->errString="";
}
}
int zebra_auth (ZebraHandle zh, const char *user, const char *pass)
{
const char *p;
char u[40];
ZebraService zs;
ASSERTZH;
zh->errCode=0;
zs= zh->service;
sprintf(u, "perm.%.30s", user ? user : "anonymous");
p = res_get(zs->global_res, u);
xfree (zh->user_perm);
zh->user_perm = xstrdup(p ? p : "r");
/* users that don't require a password .. */
if (zh->user_perm && strchr(zh->user_perm, 'a'))
return 0;
if (!zs->passwd_db || !passwd_db_auth (zs->passwd_db, user, pass))
return 0;
return 1;
}
int zebra_admin_import_begin (ZebraHandle zh, const char *database,
const char *record_type)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_admin_import_begin db=%s rt=%s",
database, record_type);
zh->errCode=0;
if (zebra_select_database(zh, database))
return 1;
if (zebra_begin_trans (zh, 1))
return 1;
return 0;
}
int zebra_admin_import_end (ZebraHandle zh)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_admin_import_end");
zh->errCode=0;
zebra_end_trans (zh);
return 0;
}
int zebra_admin_import_segment (ZebraHandle zh, Z_Segment *segment)
{
int sysno;
int i;
ASSERTZH;
yaz_log(LOG_API,"zebra_admin_import_segment");
zh->errCode=0;
for (i = 0; i<segment->num_segmentRecords; i++)
{
Z_NamePlusRecord *npr = segment->segmentRecords[i];
printf ("--------------%d--------------------\n", i);
if (npr->which == Z_NamePlusRecord_intermediateFragment)
{
Z_FragmentSyntax *fragment = npr->u.intermediateFragment;
if (fragment->which == Z_FragmentSyntax_notExternallyTagged)
{
Odr_oct *oct = fragment->u.notExternallyTagged;
printf ("%.*s", (oct->len > 100 ? 100 : oct->len) ,
oct->buf);
sysno = 0;
zebra_update_record(zh,
0, /* record Type */
&sysno,
0, /* match */
0, /* fname */
oct->buf, oct->len,
0);
}
}
}
return 0;
}
int zebra_admin_exchange_record (ZebraHandle zh,
const char *rec_buf,
size_t rec_len,
const char *recid_buf, size_t recid_len,
int action)
/* 1 = insert. Fail it already exists */
/* 2 = replace. Fail it does not exist */
/* 3 = delete. Fail if does not exist */
/* 4 = update. Insert/replace */
{
int sysno = 0;
char *rinfo = 0;
char recid_z[256];
ASSERTZH;
yaz_log(LOG_API,"zebra_admin_exchange_record ac=%d", action);
zh->errCode=0;
if (!recid_buf || recid_len <= 0 || recid_len >= sizeof(recid_z))
return -1;
memcpy (recid_z, recid_buf, recid_len);
recid_z[recid_len] = 0;
if (zebra_begin_trans(zh, 1))
return -1;
rinfo = dict_lookup (zh->reg->matchDict, recid_z);
if (rinfo)
{
if (action == 1) /* fail if insert */
{
zebra_end_trans(zh);
return -1;
}
memcpy (&sysno, rinfo+1, sizeof(sysno));
}
else
{
if (action == 2 || action == 3) /* fail if delete or update */
{
zebra_end_trans(zh);
return -1;
}
action = 1; /* make it an insert (if it's an update).. */
}
buffer_extract_record (zh, rec_buf, rec_len,
action == 3 ? 1 : 0 /* delete flag */,
0, /* test mode */
0, /* recordType */
&sysno,
0, /* match */
0, /* fname */
0, /* force update */
1 /* allow update */
);
if (action == 1)
{
dict_insert (zh->reg->matchDict, recid_z, sizeof(sysno), &sysno);
}
else if (action == 3)
{
dict_delete (zh->reg->matchDict, recid_z);
}
zebra_end_trans(zh);
return 0;
}
int delete_w_handle(const char *info, void *handle)
{
ZebraHandle zh = (ZebraHandle) handle;
ISAMC_P pos;
if (*info == sizeof(pos))
{
memcpy (&pos, info+1, sizeof(pos));
isamb_unlink(zh->reg->isamb, pos);
}
return 0;
}
static int delete_SU_handle(void *handle, int ord)
{
ZebraHandle zh = (ZebraHandle) handle;
char ord_buf[20];
int ord_len;
ord_len = key_SU_encode (ord, ord_buf);
ord_buf[ord_len] = '\0';
assert (zh->reg->isamb);
dict_delete_subtree(zh->reg->dict, ord_buf,
zh, delete_w_handle);
return 0;
}
int zebra_drop_database (ZebraHandle zh, const char *database)
{
int ret = 0;
ASSERTZH;
yaz_log(LOG_API,"zebra_drop_database");
zh->errCode = 0;
if (zebra_select_database (zh, database))
return -1;
if (zebra_begin_trans (zh, 1))
return -1;
if (zh->reg->isamb)
{
zebraExplain_curDatabase (zh->reg->zei, database);
zebraExplain_trav_ord(zh->reg->zei, zh, delete_SU_handle);
zebraExplain_removeDatabase(zh->reg->zei, zh);
}
else
{
yaz_log(LOG_WARN, "drop database only supported for isam:b");
ret = -1;
}
zebra_end_trans (zh);
return ret;
}
int zebra_create_database (ZebraHandle zh, const char *database)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_create_database");
zh->errCode=0;
if (zebra_select_database (zh, database))
return -1;
if (zebra_begin_trans (zh, 1))
return -1;
/* announce database */
if (zebraExplain_newDatabase (zh->reg->zei, database, 0
/* explainDatabase */))
{
zebra_end_trans (zh);
zh->errCode = 224;
zh->errString = "database already exist";
return -1;
}
zebra_end_trans (zh);
return 0;
}
int zebra_string_norm (ZebraHandle zh, unsigned reg_id,
const char *input_str, int input_len,
char *output_str, int output_len)
{
WRBUF wrbuf;
ASSERTZH;
yaz_log(LOG_API,"zebra_string_norm ");
zh->errCode=0;
if (!zh->reg->zebra_maps)
return -1;
wrbuf = zebra_replace(zh->reg->zebra_maps, reg_id, "",
input_str, input_len);
if (!wrbuf)
return -2;
if (wrbuf_len(wrbuf) >= output_len)
return -3;
if (wrbuf_len(wrbuf))
memcpy (output_str, wrbuf_buf(wrbuf), wrbuf_len(wrbuf));
output_str[wrbuf_len(wrbuf)] = '\0';
return wrbuf_len(wrbuf);
}
int zebra_set_state (ZebraHandle zh, int val, int seqno)
{
char state_fname[256];
char *fname;
long p = getpid();
FILE *f;
ASSERTZH;
yaz_log(LOG_API,"zebra_set_state v=%d seq=%d", val, seqno);
zh->errCode=0;
sprintf (state_fname, "state.%s.LCK", zh->reg_name);
fname = zebra_mk_fname (res_get(zh->res, "lockDir"), state_fname);
f = fopen (fname, "w");
yaz_log (LOG_DEBUG, "%c %d %ld", val, seqno, p);
fprintf (f, "%c %d %ld\n", val, seqno, p);
fclose (f);
xfree (fname);
return 0;
}
int zebra_get_state (ZebraHandle zh, char *val, int *seqno)
{
char state_fname[256];
char *fname;
FILE *f;
ASSERTZH;
yaz_log(LOG_API,"zebra_get_state ");
zh->errCode=0;
sprintf (state_fname, "state.%s.LCK", zh->reg_name);
fname = zebra_mk_fname (res_get(zh->res, "lockDir"), state_fname);
f = fopen (fname, "r");
*val = 'o';
*seqno = 0;
if (f)
{
fscanf (f, "%c %d", val, seqno);
fclose (f);
}
xfree (fname);
return 0;
}
int zebra_begin_read (ZebraHandle zh)
{
return zebra_begin_trans(zh, 0);
}
int zebra_end_read (ZebraHandle zh)
{
return zebra_end_trans(zh);
}
static void read_res_for_transaction(ZebraHandle zh)
{
const char *group = res_get(zh->res, "group");
const char *v;
zh->m_group = group;
v = res_get_prefix(zh->res, "followLinks", group, "1");
zh->m_follow_links = atoi(v);
zh->m_record_id = res_get_prefix(zh->res, "recordId", group, 0);
zh->m_record_type = res_get_prefix(zh->res, "recordType", group, 0);
v = res_get_prefix(zh->res, "storeKeys", group, "1");
zh->m_store_keys = atoi(v);
v = res_get_prefix(zh->res, "storeData", group, "1");
zh->m_store_data = atoi(v);
v = res_get_prefix(zh->res, "explainDatabase", group, "0");
zh->m_explain_database = atoi(v);
v = res_get_prefix(zh->res, "openRW", group, "1");
zh->m_flag_rw = atoi(v);
v = res_get_prefix(zh->res, "fileVerboseLimit", group, "100000");
zh->m_file_verbose_limit = atoi(v);
}
int zebra_begin_trans (ZebraHandle zh, int rw)
{
zebra_select_default_database(zh);
if (!zh->res)
{
zh->errCode = 2;
zh->errString = "zebra_begin_trans: no database selected";
return -1;
}
ASSERTZHRES;
yaz_log(LOG_API,"zebra_begin_trans rw=%d",rw);
if (zh->user_perm)
{
if (rw && !strchr(zh->user_perm, 'w'))
{
zh->errCode = 223;
zh->errString = 0;
return -1;
}
}
assert (zh->res);
if (rw)
{
int pass;
int seqno = 0;
char val = '?';
const char *rval = 0;
(zh->trans_no++);
if (zh->trans_w_no)
{
read_res_for_transaction(zh);
return 0;
}
if (zh->trans_no != 1)
{
zh->errCode = 2;
zh->errString = "zebra_begin_trans: write trans not allowed within read trans";
return -1;
}
if (zh->reg)
{
resultSetInvalidate (zh);
zebra_register_close (zh->service, zh->reg);
}
zh->trans_w_no = zh->trans_no;
zh->errCode=0;
zh->records_inserted = 0;
zh->records_updated = 0;
zh->records_deleted = 0;
zh->records_processed = 0;
#if HAVE_SYS_TIMES_H
times (&zh->tms1);
#endif
/* lock */
if (zh->shadow_enable)
rval = res_get (zh->res, "shadow");
for (pass = 0; pass < 2; pass++)
{
if (rval)
{
zebra_lock_r (zh->lock_normal);
zebra_lock_w (zh->lock_shadow);
}
else
{
zebra_lock_w (zh->lock_normal);
zebra_lock_w (zh->lock_shadow);
}
zebra_get_state (zh, &val, &seqno);
if (val == 'c')
{
yaz_log (LOG_LOG, "previous transaction didn't finish commit");
zebra_unlock (zh->lock_shadow);
zebra_unlock (zh->lock_normal);
zebra_commit (zh);
continue;
}
else if (val == 'd')
{
if (rval)
{
BFiles bfs = bfs_create (res_get (zh->res, "shadow"),
zh->path_reg);
yaz_log (LOG_LOG, "previous transaction didn't reach commit");
bf_commitClean (bfs, rval);
bfs_destroy (bfs);
}
else
{
yaz_log (LOG_WARN, "your previous transaction didn't finish");
}
}
break;
}
if (pass == 2)
{
yaz_log (LOG_FATAL, "zebra_begin_trans couldn't finish commit");
abort();
return -1;
}
zebra_set_state (zh, 'd', seqno);
zh->reg = zebra_register_open (zh->service, zh->reg_name,
1, rval ? 1 : 0, zh->res,
zh->path_reg);
if (zh->reg)
zh->reg->seqno = seqno;
else
{
zebra_set_state (zh, 'o', seqno);
zebra_unlock (zh->lock_shadow);
zebra_unlock (zh->lock_normal);
zh->trans_no--;
zh->trans_w_no = 0;
zh->errCode = 2;
zh->errString = "zebra_begin_trans: cannot open register";
yaz_log(LOG_FATAL, zh->errString);
return -1;
}
}
else
{
int dirty = 0;
char val;
int seqno;
(zh->trans_no)++;
if (zh->trans_no != 1)
{
zebra_flush_reg (zh);
return 0;
}
zh->errCode=0;
#if HAVE_SYS_TIMES_H
times (&zh->tms1);
#endif
if (!zh->res)
{
(zh->trans_no)--;
zh->errCode = 109;
return -1;
}
if (!zh->lock_normal || !zh->lock_shadow)
{
(zh->trans_no)--;
zh->errCode = 2;
return -1;
}
zebra_get_state (zh, &val, &seqno);
if (val == 'd')
val = 'o';
if (!zh->reg)
dirty = 1;
else if (seqno != zh->reg->seqno)
{
yaz_log (LOG_LOG, "reopen seqno cur/old %d/%d",
seqno, zh->reg->seqno);
dirty = 1;
}
else if (zh->reg->last_val != val)
{
yaz_log (LOG_LOG, "reopen last cur/old %d/%d",
val, zh->reg->last_val);
dirty = 1;
}
if (!dirty)
return 0;
if (val == 'c')
zebra_lock_r (zh->lock_shadow);
else
zebra_lock_r (zh->lock_normal);
if (zh->reg)
{
resultSetInvalidate (zh);
zebra_register_close (zh->service, zh->reg);
}
zh->reg = zebra_register_open (zh->service, zh->reg_name,
0, val == 'c' ? 1 : 0,
zh->res, zh->path_reg);
if (!zh->reg)
{
zebra_unlock (zh->lock_normal);
zebra_unlock (zh->lock_shadow);
zh->trans_no--;
zh->errCode = 109;
return -1;
}
zh->reg->last_val = val;
zh->reg->seqno = seqno;
}
read_res_for_transaction(zh);
return 0;
}
int zebra_end_trans (ZebraHandle zh)
{
ZebraTransactionStatus dummy;
yaz_log(LOG_API,"zebra_end_trans");
return zebra_end_transaction(zh, &dummy);
}
int zebra_end_transaction (ZebraHandle zh, ZebraTransactionStatus *status)
{
char val;
int seqno;
const char *rval;
ASSERTZH;
yaz_log(LOG_API,"zebra_end_transaction");
status->processed = 0;
status->inserted = 0;
status->updated = 0;
status->deleted = 0;
status->utime = 0;
status->stime = 0;
if (!zh->res || !zh->reg)
{
zh->errCode = 2;
zh->errString = "zebra_end_trans: no open transaction";
return -1;
}
if (zh->trans_no != zh->trans_w_no)
{
zh->trans_no--;
if (zh->trans_no != 0)
return 0;
/* release read lock */
zebra_unlock (zh->lock_normal);
zebra_unlock (zh->lock_shadow);
}
else
{ /* release write lock */
zh->trans_no--;
zh->trans_w_no = 0;
yaz_log (LOG_LOG, "zebra_end_trans");
rval = res_get (zh->res, "shadow");
zebraExplain_runNumberIncrement (zh->reg->zei, 1);
zebra_flush_reg (zh);
resultSetInvalidate (zh);
zebra_register_close (zh->service, zh->reg);
zh->reg = 0;
yaz_log (LOG_LOG, "Records: %7d i/u/d %d/%d/%d",
zh->records_processed, zh->records_inserted,
zh->records_updated, zh->records_deleted);
status->processed = zh->records_processed;
status->inserted = zh->records_inserted;
status->updated = zh->records_updated;
status->deleted = zh->records_deleted;
zebra_get_state (zh, &val, &seqno);
if (val != 'd')
{
BFiles bfs = bfs_create (rval, zh->path_reg);
yaz_log (LOG_LOG, "deleting shadow stuff val=%c", val);
bf_commitClean (bfs, rval);
bfs_destroy (bfs);
}
if (!rval)
seqno++;
zebra_set_state (zh, 'o', seqno);
zebra_unlock (zh->lock_shadow);
zebra_unlock (zh->lock_normal);
}
#if HAVE_SYS_TIMES_H
times (&zh->tms2);
logf (LOG_LOG, "user/system: %ld/%ld",
(long) (zh->tms2.tms_utime - zh->tms1.tms_utime),
(long) (zh->tms2.tms_stime - zh->tms1.tms_stime));
status->utime = (long) (zh->tms2.tms_utime - zh->tms1.tms_utime);
status->stime = (long) (zh->tms2.tms_stime - zh->tms1.tms_stime);
#endif
return 0;
}
int zebra_repository_update (ZebraHandle zh, const char *path)
{
ASSERTZH;
zh->errCode=0;
logf (LOG_LOG|LOG_API, "updating %s", path);
repositoryUpdate (zh, path);
return zh->errCode;
}
int zebra_repository_delete (ZebraHandle zh, const char *path)
{
ASSERTZH;
zh->errCode=0;
logf (LOG_LOG|LOG_API, "deleting %s", path);
repositoryDelete (zh, path);
return zh->errCode;
}
int zebra_repository_show (ZebraHandle zh, const char *path)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_repository_show");
zh->errCode=0;
repositoryShow (zh, path);
return zh->errCode;
}
static int zebra_commit_ex (ZebraHandle zh, int clean_only)
{
int seqno;
char val;
const char *rval;
BFiles bfs;
ASSERTZH;
zh->errCode=0;
zebra_select_default_database(zh);
if (!zh->res)
{
zh->errCode = 109;
return -1;
}
rval = res_get (zh->res, "shadow");
if (!rval)
{
logf (LOG_WARN, "Cannot perform commit");
logf (LOG_WARN, "No shadow area defined");
return 0;
}
zebra_lock_w (zh->lock_normal);
zebra_lock_r (zh->lock_shadow);
bfs = bfs_create (res_get (zh->res, "register"), zh->path_reg);
zebra_get_state (zh, &val, &seqno);
if (rval && *rval)
bf_cache (bfs, rval);
if (bf_commitExists (bfs))
{
if (clean_only)
zebra_set_state (zh, 'd', seqno);
else
{
zebra_set_state (zh, 'c', seqno);
logf (LOG_LOG, "commit start");
bf_commitExec (bfs);
#ifndef WIN32
sync ();
#endif
}
logf (LOG_LOG, "commit clean");
bf_commitClean (bfs, rval);
seqno++;
zebra_set_state (zh, 'o', seqno);
}
else
{
logf (LOG_LOG, "nothing to commit");
}
bfs_destroy (bfs);
zebra_unlock (zh->lock_shadow);
zebra_unlock (zh->lock_normal);
return 0;
}
int zebra_clean (ZebraHandle zh)
{
yaz_log(LOG_API,"zebra_clean");
return zebra_commit_ex(zh, 1);
}
int zebra_commit (ZebraHandle zh)
{
yaz_log(LOG_API,"zebra_commit");
return zebra_commit_ex(zh, 0);
}
int zebra_init (ZebraHandle zh)
{
const char *rval;
BFiles bfs = 0;
ASSERTZH;
yaz_log(LOG_API,"zebra_init");
zh->errCode=0;
zebra_select_default_database(zh);
if (!zh->res)
{
zh->errCode = 109;
return -1;
}
rval = res_get (zh->res, "shadow");
bfs = bfs_create (res_get (zh->res, "register"), zh->path_reg);
if (!bfs)
return -1;
if (rval && *rval)
bf_cache (bfs, rval);
bf_reset (bfs);
bfs_destroy (bfs);
zebra_set_state (zh, 'o', 0);
return 0;
}
int zebra_compact (ZebraHandle zh)
{
BFiles bfs;
ASSERTZH;
yaz_log(LOG_API,"zebra_compact");
zh->errCode=0;
if (!zh->res)
{
zh->errCode = 109;
return -1;
}
bfs = bfs_create (res_get (zh->res, "register"), zh->path_reg);
inv_compact (bfs);
bfs_destroy (bfs);
return 0;
}
int zebra_result (ZebraHandle zh, int *code, char **addinfo)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_result");
*code = zh->errCode;
*addinfo = zh->errString;
return 0;
}
int zebra_shadow_enable (ZebraHandle zh, int value)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_shadow_enable");
zh->errCode=0;
zh->shadow_enable = value;
return 0;
}
int zebra_record_encoding (ZebraHandle zh, const char *encoding)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_record_encoding");
zh->errCode=0;
xfree (zh->record_encoding);
/*
* Fixme!
* Something about charset aliases. Oleg???
*/
if (zh->iconv_to_utf8 != 0)
yaz_iconv_close(zh->iconv_to_utf8);
if (zh->iconv_from_utf8 != 0)
yaz_iconv_close(zh->iconv_from_utf8);
zh->record_encoding = xstrdup (encoding);
logf(LOG_DEBUG, "Reset record encoding: %s", encoding);
zh->iconv_to_utf8 =
yaz_iconv_open ("UTF-8", encoding);
if (zh->iconv_to_utf8 == 0)
yaz_log (LOG_WARN, "iconv: %s to UTF-8 unsupported", encoding);
zh->iconv_from_utf8 =
yaz_iconv_open (encoding, "UTF-8");
if (zh->iconv_to_utf8 == 0)
yaz_log (LOG_WARN, "iconv: UTF-8 to %s unsupported", encoding);
return 0;
}
int zebra_set_resource(ZebraHandle zh, const char *name, const char *value)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_set_resource %s:%s",name,value);
zh->errCode=0;
res_set(zh->res, name, value);
return 0;
}
const char *zebra_get_resource(ZebraHandle zh,
const char *name, const char *defaultvalue)
{
const char *v;
ASSERTZH;
v= res_get_def( zh->res, name, (char *)defaultvalue);
zh->errCode=0;
yaz_log(LOG_API,"zebra_get_resource %s:%s",name,v);
return v;
}
/* moved from zebra_api_ext.c by pop */
/* FIXME: Should this really be public??? -Heikki */
int zebra_trans_no (ZebraHandle zh)
{
ASSERTZH;
yaz_log(LOG_API,"zebra_trans_no");
return zh->trans_no;
}
int zebra_get_shadow_enable (ZebraHandle zh)
{
yaz_log(LOG_API,"zebra_get_shadow_enable");
return (zh->shadow_enable);
}
int zebra_set_shadow_enable (ZebraHandle zh, int value)
{
yaz_log(LOG_API,"zebra_set_shadow_enable %d",value);
zh->shadow_enable = value;
return 0;
}
/* almost the same as zebra_records_retrieve ... but how did it work?
I mean for multiple records ??? CHECK ??? */
void api_records_retrieve (ZebraHandle zh, ODR stream,
const char *setname, Z_RecordComposition *comp,
oid_value input_format, int num_recs,
ZebraRetrievalRecord *recs)
{
ZebraPosSet poset;
int i, *pos_array;
yaz_log(LOG_API,"api_records_retrieve s=%s n=%d",setname,num_recs);
if (!zh->res)
{
zh->errCode = 30;
zh->errString = odr_strdup (stream, setname);
return;
}
zh->errCode = 0;
if (zebra_begin_read (zh))
return;
pos_array = (int *) xmalloc (num_recs * sizeof(*pos_array));
for (i = 0; i<num_recs; i++)
pos_array[i] = recs[i].position;
poset = zebraPosSetCreate (zh, setname, num_recs, pos_array);
if (!poset)
{
logf (LOG_DEBUG, "zebraPosSetCreate error");
zh->errCode = 30;
zh->errString = nmem_strdup (stream->mem, setname);
}
else
{
for (i = 0; i<num_recs; i++)
{
if (poset[i].term)
{
recs[i].errCode = 0;
recs[i].format = VAL_SUTRS;
recs[i].len = strlen(poset[i].term);
recs[i].buf = poset[i].term;
recs[i].base = poset[i].db;
recs[i].sysno = 0;
}
else if (poset[i].sysno)
{
/* changed here ??? CHECK ??? */
char *b;
recs[i].errCode =
zebra_record_fetch (zh, poset[i].sysno, poset[i].score,
stream, input_format, comp,
&recs[i].format,
&b,
&recs[i].len,
&recs[i].base);
recs[i].buf = (char *) odr_malloc(stream,recs[i].len);
memcpy(recs[i].buf, b, recs[i].len);
recs[i].errString = 0; /* Hmmm !!! we should get this */
recs[i].sysno = poset[i].sysno;
recs[i].score = poset[i].score;
}
else
{
char num_str[20];
sprintf (num_str, "%d", pos_array[i]);
zh->errCode = 13;
zh->errString = odr_strdup (stream, num_str);
break;
}
}
zebraPosSetDestroy (zh, poset, num_recs);
}
zebra_end_read (zh);
xfree (pos_array);
}
/* ---------------------------------------------------------------------------
Record insert(=update), delete
If sysno is provided, then it's used to identify the record.
If not, and match_criteria is provided, then sysno is guessed
If not, and a record is provided, then sysno is got from there
NOTE: Now returns 0 at success and updates sysno, which is an int*
20-jun-2003 Heikki
*/
int zebra_add_record(ZebraHandle zh,
const char *buf, int buf_size)
{
int sysno = 0;
return zebra_update_record(zh, 0, &sysno, 0, 0, buf, buf_size, 0);
}
int zebra_insert_record (ZebraHandle zh,
const char *recordType,
int *sysno, const char *match, const char *fname,
const char *buf, int buf_size, int force_update)
{
int res;
yaz_log(LOG_API,"zebra_insert_record sysno=%d", *sysno);
if (buf_size < 1) buf_size = strlen(buf);
if (zebra_begin_trans(zh, 1))
return 1;
res = buffer_extract_record (zh, buf, buf_size,
0, /* delete_flag */
0, /* test_mode */
recordType,
sysno,
match, fname,
0,
0); /* allow_update */
zebra_end_trans(zh);
return res;
}
int zebra_update_record (ZebraHandle zh,
const char *recordType,
int* sysno, const char *match, const char *fname,
const char *buf, int buf_size,
int force_update)
{
int res;
yaz_log(LOG_API,"zebra_update_record sysno=%d", *sysno);
if (buf_size < 1) buf_size = strlen(buf);
if (zebra_begin_trans(zh, 1))
return 1;
res = buffer_extract_record (zh, buf, buf_size,
0, /* delete_flag */
0, /* test_mode */
recordType,
sysno,
match, fname,
force_update,
1); /* allow_update */
yaz_log(LOG_LOG, "zebra_update_record returned res=%d", res);
zebra_end_trans(zh);
return res;
}
int zebra_delete_record (ZebraHandle zh,
const char *recordType,
int *sysno, const char *match, const char *fname,
const char *buf, int buf_size,
int force_update)
{
int res;
yaz_log(LOG_API,"zebra_delete_record sysno=%d", *sysno);
if (buf_size < 1) buf_size = strlen(buf);
if (zebra_begin_trans(zh, 1))
return 1;
res = buffer_extract_record (zh, buf, buf_size,
1, /* delete_flag */
0, /* test_mode */
recordType,
sysno,
match,fname,
force_update,
1); /* allow_update */
zebra_end_trans(zh);
return res;
}
/* ---------------------------------------------------------------------------
Searching
*/
int zebra_search_PQF (ZebraHandle zh, const char *pqf_query,
const char *setname, int *numhits)
{
int hits = 0;
int res=-1;
Z_RPNQuery *query;
ODR odr = odr_createmem(ODR_ENCODE);
yaz_log(LOG_API,"zebra_search_PQF s=%s q=%s",setname, pqf_query);
query = p_query_rpn (odr, PROTO_Z3950, pqf_query);
if (!query)
yaz_log (LOG_WARN, "bad query %s\n", pqf_query);
else
res=zebra_search_RPN (zh, odr, query, setname, &hits);
odr_destroy(odr);
yaz_log(LOG_API,"Hits: %d",hits);
if (numhits)
*numhits=hits;
return res;
}
/* ---------------------------------------------------------------------------
Sort - a simplified interface, with optional read locks.
FIXME - This is a horrible name, will conflict with half the applications
*/
int zebra_sort_by_specstr (ZebraHandle zh,
ODR stream,
const char *sort_spec,
const char *output_setname,
const char **input_setnames)
{
int num_input_setnames = 0;
int sort_status = 0;
Z_SortKeySpecList *sort_sequence = yaz_sort_spec (stream, sort_spec);
yaz_log(LOG_API,"sort (FIXME) ");
if (!sort_sequence)
{
logf(LOG_WARN,"invalid sort specs '%s'", sort_spec);
zh->errCode = 207;
return -1;
}
/* we can do this, since the perl typemap code for char** will
put a NULL at the end of list */
while (input_setnames[num_input_setnames]) num_input_setnames++;
if (zebra_begin_read (zh))
return -1;
resultSetSort (zh, stream->mem, num_input_setnames, input_setnames,
output_setname, sort_sequence, &sort_status);
zebra_end_read(zh);
return sort_status;
}
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