-/*
- * Copyright (C) 1994-1996, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: recctrl.c,v $
- * Revision 1.2 1996-10-29 14:03:16 adam
- * Include zebrautl.h instead of alexutil.h.
- *
- * Revision 1.1 1996/10/11 10:57:24 adam
- * New module recctrl. Used to manage records (extract/retrieval).
- *
- * Revision 1.5 1996/06/04 10:18:59 adam
- * Minor changes - removed include of ctype.h.
- *
- * Revision 1.4 1995/12/04 17:59:24 adam
- * More work on regular expression conversion.
- *
- * Revision 1.3 1995/12/04 14:22:30 adam
- * Extra arg to recType_byName.
- * Started work on new regular expression parsed input to
- * structured records.
- *
- * Revision 1.2 1995/11/15 14:46:19 adam
- * Started work on better record management system.
- *
- * Revision 1.1 1995/09/27 12:22:28 adam
- * More work on extract in record control.
- * Field name is not in isam keys but in prefix in dictionary words.
- *
- */
+/* $Id: recctrl.c,v 1.7 2004-09-27 10:44:50 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 <stdio.h>
#include <assert.h>
#include <string.h>
+#include <dlfcn.h>
+#include <direntz.h>
#include <zebrautl.h>
-#include "rectext.h"
-#include "recgrs.h"
+#include <recctrl.h>
-RecType recType_byName (const char *name, char *subType)
+struct recTypeClass {
+ RecType recType;
+ struct recTypeClass *next;
+ void *module_handle;
+};
+
+struct recTypeInstance {
+ RecType recType;
+ struct recTypeInstance *next;
+ int init_flag;
+ void *clientData;
+};
+
+struct recTypes {
+ data1_handle dh;
+ struct recTypeInstance *entries;
+};
+
+static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
+ NMEM nmem, void *module_handle);
+
+RecTypeClass recTypeClass_create (Res res, NMEM nmem)
{
- char *p;
- char tmpname[256];
+ struct recTypeClass *rts = 0;
+ const char *module_path = res_get_def(res, "modulePath",
+ DEFAULT_MODULE_PATH);
+
+ extern RecType idzebra_filter_grs_sgml[];
+ recTypeClass_add (&rts, idzebra_filter_grs_sgml, nmem, 0);
+#ifdef IDZEBRA_STATIC_TEXT
+ extern RecType idzebra_filter_text[];
+ recTypeClass_add (&rts, idzebra_filter_text, nmem, 0);
+#endif
+#ifdef IDZEBRA_STATIC_GRS_XML
+ extern RecType idzebra_filter_grs_xml[];
+ recTypeClass_add (&rts, idzebra_filter_grs_xml, nmem, 0);
+#endif
+#ifdef IDZEBRA_STATIC_GRS_REGX
+ extern RecType idzebra_filter_grs_regx[];
+ recTypeClass_add (&rts, idzebra_filter_grs_regx, nmem, 0);
+#endif
+#ifdef IDZEBRA_STATIC_GRS_MARC
+ extern RecType idzebra_filter_grs_marc[];
+ recTypeClass_add (&rts, idzebra_filter_grs_marc, nmem, 0);
+#endif
+#ifdef IDZEBRA_STATIC_GRS_PERL
+ extern RecType idzebra_filter_grs_perl[];
+ recTypeClass_add (&rts, idzebra_filter_grs_perl, nmem, 0);
+#endif
+#ifdef IDZEBRA_STATIC_GRS_DANBIB
+ extern RecType idzebra_filter_grs_danbib[];
+ recTypeClass_add (&rts, idzebra_filter_grs_danbib, nmem, 0);
+#endif
+
+ if (module_path)
+ {
+ DIR *dir = opendir(module_path);
+ yaz_log(LOG_LOG, "searching filters in %s", module_path);
+ if (dir)
+ {
+ struct dirent *de;
+
+ while ((de = readdir(dir)))
+ {
+ size_t dlen = strlen(de->d_name);
+ if ((de->d_type == DT_REG || de->d_type == DT_LNK)
+ && dlen >= 5 &&
+ !memcmp(de->d_name, "mod-", 4) &&
+ !strcmp(de->d_name + dlen - 3, ".so"))
+ {
+ void *mod_p, *fl;
+ char fname[FILENAME_MAX*2+1];
+ sprintf(fname, "%.*s/%.*s",
+ FILENAME_MAX, module_path,
+ FILENAME_MAX, de->d_name);
+ mod_p = dlopen(fname, RTLD_NOW|RTLD_GLOBAL);
+ if (mod_p && (fl = dlsym(mod_p, "idzebra_filter")))
+ {
+ yaz_log(LOG_LOG, "Loaded filter module %s", fname);
+ recTypeClass_add(&rts, fl, nmem, mod_p);
+ }
+ else if (mod_p)
+ {
+ const char *err = dlerror();
+ yaz_log(LOG_WARN, "dlsym failed %s %s",
+ fname, err ? err : "none");
+ dlclose(mod_p);
+ }
+ else
+ {
+ const char *err = dlerror();
+ yaz_log(LOG_WARN, "dlopen failed %s %s",
+ fname, err ? err : "none");
+
+ }
+ }
+ }
+ closedir(dir);
+ }
+ }
+ return rts;
+}
- strcpy (tmpname, name);
- if ((p = strchr (tmpname, '.')))
+static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
+ NMEM nmem, void *module_handle)
+{
+ while (*rt)
{
- *p = '\0';
- strcpy (subType, p+1);
+ struct recTypeClass *r = (struct recTypeClass *)
+ nmem_malloc (nmem, sizeof(*r));
+
+ r->next = *rts;
+ *rts = r;
+
+ yaz_log(LOG_LOG, "Adding filter %s", (*rt)->name);
+ r->module_handle = module_handle;
+ module_handle = 0; /* so that we only store module_handle once */
+ r->recType = *rt;
+
+ rt++;
+ }
+}
+
+void recTypeClass_info(RecTypeClass rtc, void *cd,
+ void (*cb)(void *cd, const char *s))
+{
+ for (; rtc; rtc = rtc->next)
+ (*cb)(cd, rtc->recType->name);
+}
+
+void recTypeClass_destroy(RecTypeClass rtc)
+{
+ for (; rtc; rtc = rtc->next)
+ {
+ if (rtc->module_handle)
+ dlclose(rtc->module_handle);
+ }
+}
+
+RecTypes recTypes_init(RecTypeClass rtc, data1_handle dh)
+{
+ RecTypes rts = (RecTypes) nmem_malloc(data1_nmem_get(dh), sizeof(*rts));
+
+ struct recTypeInstance **rti = &rts->entries;
+
+ rts->dh = dh;
+
+ for (; rtc; rtc = rtc->next)
+ {
+ *rti = nmem_malloc(data1_nmem_get(dh), sizeof(**rti));
+ (*rti)->recType = rtc->recType;
+ (*rti)->init_flag = 0;
+ rti = &(*rti)->next;
+ }
+ *rti = 0;
+ return rts;
+}
+
+void recTypes_destroy (RecTypes rts)
+{
+ struct recTypeInstance *rti;
+
+ for (rti = rts->entries; rti; rti = rti->next)
+ {
+ if (rti->init_flag)
+ (*(rti->recType)->destroy)(rti->clientData);
+ }
+}
+
+RecType recType_byName (RecTypes rts, Res res, const char *name,
+ void **clientDataP)
+{
+ struct recTypeInstance *rti;
+
+ for (rti = rts->entries; rti; rti = rti->next)
+ {
+ size_t slen = strlen(rti->recType->name);
+ if (!strncmp (rti->recType->name, name, slen)
+ && (name[slen] == '\0' || name[slen] == '.'))
+ {
+ if (!rti->init_flag)
+ {
+ rti->init_flag = 1;
+ rti->clientData =
+ (*(rti->recType)->init)(res, rti->recType);
+ }
+ *clientDataP = rti->clientData;
+ if (name[slen])
+ slen++; /* skip . */
+
+ if (rti->recType->config)
+ (*(rti->recType)->config)(rti->clientData, res, name+slen);
+ return rti->recType;
+ }
}
- else
- *subType = '\0';
- if (!strcmp (recTypeGrs->name, tmpname))
- return recTypeGrs;
- if (!strcmp (recTypeText->name, tmpname))
- return recTypeText;
- return NULL;
+ return 0;
}
projects / idzebra-moved-to-github.git / blobdiff