/*
- * Copyright (C) 1994-1996, Index Data I/S
+ * Copyright (C) 1994-1998, Index Data I/S
* All rights reserved.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: extract.c,v $
- * Revision 1.71 1997-07-15 16:28:41 adam
+ * Revision 1.81 1998-03-11 11:19:04 adam
+ * Changed the way sequence numbers are generated.
+ *
+ * Revision 1.80 1998/03/05 08:45:11 adam
+ * New result set model and modular ranking system. Moved towards
+ * descent server API. System information stored as "SGML" records.
+ *
+ * Revision 1.79 1998/02/17 10:32:52 adam
+ * Fixed bug: binary files weren't opened with flag b on NT.
+ *
+ * Revision 1.78 1998/02/10 12:03:05 adam
+ * Implemented Sort.
+ *
+ * Revision 1.77 1998/01/12 15:04:08 adam
+ * The test option (-s) only uses read-lock (and not write lock).
+ *
+ * Revision 1.76 1997/10/27 14:33:04 adam
+ * Moved towards generic character mapping depending on "structure"
+ * field in abstract syntax file. Fixed a few memory leaks. Fixed
+ * bug with negative integers when doing searches with relational
+ * operators.
+ *
+ * Revision 1.75 1997/09/17 12:19:12 adam
+ * Zebra version corresponds to YAZ version 1.4.
+ * Changed Zebra server so that it doesn't depend on global common_resource.
+ *
+ * Revision 1.74 1997/09/09 13:38:06 adam
+ * Partial port to WIN95/NT.
+ *
+ * Revision 1.73 1997/09/04 13:57:20 adam
+ * New file extract/retrieve method tellf (added).
+ * Added O_BINARY for open calls.
+ *
+ * Revision 1.72 1997/07/15 16:32:29 adam
+ * Bug fix: Match handler didn't terminate the resulting string!
+ *
+ * Revision 1.71 1997/07/15 16:28:41 adam
* Bug fix: storeData didn't work with files with multiple records.
* Bug fix: fixed memory management with records; not really well
* thought through.
*/
#include <stdio.h>
#include <assert.h>
+#ifdef WINDOWS
+#include <io.h>
+#else
#include <unistd.h>
+#endif
#include <fcntl.h>
#include <recctrl.h>
+#include <charmap.h>
+#include <sortidx.h>
#include "index.h"
#include "zinfo.h"
static Dict matchDict;
static Records records = NULL;
+static SortIdx sortIdx = NULL;
static char **key_buf;
static size_t ptr_top;
static int records_deleted = 0;
static int records_processed = 0;
-static ZebTargetInfo *zti = NULL;
+static ZebraExplainInfo zti = NULL;
static void logRecord (int showFlag)
{
}
}
-void key_open (int mem)
+int key_open (BFiles bfs, int mem, int rw, data1_handle dh)
{
if (!mem)
mem = atoi(res_get_def (common_resource, "memMax", "4"))*1024*1024;
key_buf_used = 0;
key_file_no = 0;
- if (!(matchDict = dict_open (GMATCH_DICT, 50, 1)))
+ if (!(matchDict = dict_open (bfs, GMATCH_DICT, 50, rw)))
{
logf (LOG_FATAL, "dict_open fail of %s", GMATCH_DICT);
- exit (1);
+ return -1;
}
assert (!records);
- records = rec_open (1);
-#if 1
- zti = zebTargetInfo_open (records, 1);
-#endif
+ records = rec_open (bfs, rw);
+ if (!records)
+ {
+ dict_close (matchDict);
+ return -1;
+ }
+ zti = zebraExplain_open (records, dh, rw);
+ if (!zti)
+ {
+ rec_close (&records);
+ dict_close (matchDict);
+ return -1;
+ }
+ sortIdx = sortIdx_open (bfs, 1);
+ return 0;
}
struct encode_info {
qsort (key_buf + ptr_top-ptr_i, ptr_i, sizeof(char*), key_qsort_compare);
getFnameTmp (out_fname, key_file_no);
- if (!(outf = fopen (out_fname, "w")))
+ if (!(outf = fopen (out_fname, "wb")))
{
- logf (LOG_FATAL|LOG_ERRNO, "fopen (4) %s", out_fname);
+ logf (LOG_FATAL|LOG_ERRNO, "fopen %s", out_fname);
exit (1);
}
logf (LOG_LOG, "writing section %d", key_file_no);
qsort (key_buf + ptr_top-ptr_i, ptr_i, sizeof(char*), key_x_compare);
getFnameTmp (out_fname, key_file_no);
- if (!(outf = fopen (out_fname, "w")))
+ if (!(outf = fopen (out_fname, "wb")))
{
- logf (LOG_FATAL|LOG_ERRNO, "fopen (4) %s", out_fname);
+ logf (LOG_FATAL|LOG_ERRNO, "fopen %s", out_fname);
exit (1);
}
logf (LOG_LOG, "writing section %d", key_file_no);
key_buf_used = 0;
}
-int key_close (void)
+int key_close (int rw)
{
key_flush ();
xfree (key_buf);
-#if 1
- zebTargetInfo_close (zti, 1);
-#endif
+ if (rw)
+ zebraExplain_runNumberIncrement (zti, 1);
+ zebraExplain_close (zti, rw);
rec_close (&records);
dict_close (matchDict);
+ sortIdx_close (sortIdx);
logRecord (1);
return key_file_no;
}
-static void wordInit (RecWord *p)
+static void wordInit (struct recExtractCtrl *p, RecWord *w)
{
- p->attrSet = 1;
- p->attrUse = 1016;
- p->which = Word_String;
+ w->zebra_maps = p->zebra_maps;
+ w->seqnos = p->seqno;
+ w->attrSet = 1;
+ w->attrUse = 1016;
+ w->reg_type = 'w';
}
-struct recKeys {
+static struct sortKey {
+ char *string;
+ int length;
+ int attrSet;
+ int attrUse;
+ struct sortKey *next;
+} *sortKeys = NULL;
+
+static struct recKeys {
int buf_used;
int buf_max;
char *buf;
int prevSeqNo;
} reckeys;
-static void addRecordKey (const RecWord *p)
+static void addIndexString (RecWord *p, const char *string, int length)
{
char *dst;
char attrSet;
short attrUse;
- size_t i;
int lead = 0;
int diff = 0;
+ int *pseqno = &p->seqnos[p->reg_type];
if (reckeys.buf_used+1024 > reckeys.buf_max)
{
else
reckeys.prevAttrUse = attrUse;
#if 1
- diff = 1 + p->seqno - reckeys.prevSeqNo;
+ diff = 1 + *pseqno - reckeys.prevSeqNo;
if (diff >= 1 && diff <= 15)
lead |= (diff << 2);
else
diff = 0;
#endif
- reckeys.prevSeqNo = p->seqno;
-
+ reckeys.prevSeqNo = *pseqno;
+
*dst++ = lead;
if (!(lead & 1))
memcpy (dst, &attrUse, sizeof(attrUse));
dst += sizeof(attrUse);
}
- switch (p->which)
- {
- case Word_String:
- *dst++ = 'w';
- break;
- case Word_Phrase:
- *dst++ = 'p';
- break;
- case Word_Numeric:
- *dst++ = 'n';
- }
- for (i = 0; p->u.string[i] && i < IT_MAX_WORD-3; i++)
- *dst++ = p->u.string[i];
+ *dst++ = p->reg_type;
+ memcpy (dst, string, length);
+ dst += length;
*dst++ = '\0';
if (!diff)
{
- memcpy (dst, &p->seqno, sizeof(p->seqno));
- dst += sizeof(p->seqno);
+ memcpy (dst, pseqno, sizeof(*pseqno));
+ dst += sizeof(*pseqno);
}
reckeys.buf_used = dst - reckeys.buf;
+ (*pseqno)++;
+}
+
+static void addSortString (RecWord *p, const char *string, int length)
+{
+ struct sortKey *sk;
+
+ for (sk = sortKeys; sk; sk = sk->next)
+ if (sk->attrSet == p->attrSet && sk->attrUse == p->attrUse)
+ return;
+
+ sk = xmalloc (sizeof(*sk));
+ sk->next = sortKeys;
+ sortKeys = sk;
+
+ sk->string = xmalloc (p->length);
+ sk->length = p->length;
+ memcpy (sk->string, p->string, p->length);
+ sk->attrSet = p->attrSet;
+ sk->attrUse = p->attrUse;
+}
+
+static void addString (RecWord *p, const char *string, int length)
+{
+ assert (length > 0);
+ if (zebra_maps_is_sort (p->zebra_maps, p->reg_type))
+ addSortString (p, string, length);
+ else
+ addIndexString (p, string, length);
+}
+
+static void addIncompleteField (RecWord *p)
+{
+ const char *b = p->string;
+ int remain = p->length;
+ const char **map = 0;
+
+ if (remain > 0)
+ map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
+
+ while (map)
+ {
+ char buf[IT_MAX_WORD+1];
+ int i, remain;
+
+ /* Skip spaces */
+ while (map && *map && **map == *CHR_SPACE)
+ {
+ remain = p->length - (b - p->string);
+ if (remain > 0)
+ map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
+ else
+ map = 0;
+ }
+ if (!map)
+ break;
+ i = 0;
+ while (map && *map && **map != *CHR_SPACE)
+ {
+ const char *cp = *map;
+
+ while (i < IT_MAX_WORD && *cp)
+ buf[i++] = *(cp++);
+ remain = p->length - (b - p->string);
+ if (remain > 0)
+ map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
+ else
+ map = 0;
+ }
+ if (!i)
+ return;
+ addString (p, buf, i);
+ }
+}
+
+static void addCompleteField (RecWord *p)
+{
+ const char *b = p->string;
+ char buf[IT_MAX_WORD+1];
+ const char **map = 0;
+ int i = 0, remain = p->length;
+
+ if (remain > 0)
+ map = zebra_maps_input (p->zebra_maps, p->reg_type, &b, remain);
+
+ while (remain > 0 && i < IT_MAX_WORD)
+ {
+ while (map && *map && **map == *CHR_SPACE)
+ {
+ remain = p->length - (b - p->string);
+ if (remain > 0)
+ map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
+ else
+ map = 0;
+ }
+ if (!map)
+ break;
+
+ if (i && i < IT_MAX_WORD)
+ buf[i++] = *CHR_SPACE;
+ while (map && *map && **map != *CHR_SPACE)
+ {
+ const char *cp = *map;
+
+ if (i >= IT_MAX_WORD)
+ break;
+ while (i < IT_MAX_WORD && *cp)
+ buf[i++] = *(cp++);
+ remain = p->length - (b - p->string);
+ if (remain > 0)
+ map = zebra_maps_input (p->zebra_maps, p->reg_type, &b,
+ remain);
+ else
+ map = 0;
+ }
+ }
+ if (!i)
+ return;
+ addString (p, buf, i);
+}
+
+static void addRecordKey (RecWord *p)
+{
+ if (zebra_maps_is_complete (p->zebra_maps, p->reg_type))
+ addCompleteField (p);
+ else
+ addIncompleteField(p);
+}
+
+static void flushSortKeys (SYSNO sysno, int cmd)
+{
+ struct sortKey *sk = sortKeys;
+
+ sortIdx_sysno (sortIdx, sysno);
+ while (sk)
+ {
+ struct sortKey *sk_next = sk->next;
+ sortIdx_type (sortIdx, sk->attrUse);
+ sortIdx_add (sortIdx, sk->string, sk->length);
+ xfree (sk->string);
+ xfree (sk);
+ sk = sk_next;
+ }
+ sortKeys = NULL;
}
static void flushRecordKeys (SYSNO sysno, int cmd, struct recKeys *reckeys,
int seqno = 0;
int off = 0;
- if (zebTargetInfo_curDatabase (zti, databaseName))
+ if (zebraExplain_curDatabase (zti, databaseName))
{
- if (zebTargetInfo_newDatabase (zti, databaseName))
+ if (zebraExplain_newDatabase (zti, databaseName))
abort ();
}
+ zebraExplain_recordCountIncrement (zti, cmd ? 1 : -1);
while (off < reckeys->buf_used)
{
const char *src = reckeys->buf + off;
++ptr_i;
key_buf[ptr_top-ptr_i] = (char*)key_buf + key_buf_used;
- ch = zebTargetInfo_lookupSU (zti, attrSet, attrUse);
+ ch = zebraExplain_lookupSU (zti, attrSet, attrUse);
if (ch < 0)
- ch = zebTargetInfo_addSU (zti, attrSet, attrUse);
+ ch = zebraExplain_addSU (zti, attrSet, attrUse);
assert (ch > 0);
((char*) key_buf) [key_buf_used++] = ch;
while (*src)
}
static const char **searchRecordKey (struct recKeys *reckeys,
- int attrSetS, int attrUseS)
+ int attrSetS, int attrUseS)
{
static const char *ws[32];
int off = 0;
return lseek (p->fd, offset, SEEK_SET);
}
+static off_t file_tell (void *handle)
+{
+ struct file_read_info *p = handle;
+ return p->file_offset;
+}
+
static int file_read (void *handle, char *buf, size_t count)
{
struct file_read_info *p = handle;
fname, rGroup->groupName ? rGroup->groupName : "none");
return NULL;
}
+ *dst = '\0';
return dstBuf;
}
char *subType)
{
struct recExtractCtrl extractCtrl;
+ RecordAttr *recordAttr;
int r;
char *matchStr;
SYSNO sysnotmp;
if (fi->fd != -1)
{
+ int i;
/* we are going to read from a file, so prepare the extraction */
extractCtrl.fh = fi;
extractCtrl.subType = subType;
extractCtrl.init = wordInit;
extractCtrl.add = addRecordKey;
+ extractCtrl.dh = rGroup->dh;
reckeys.buf_used = 0;
reckeys.prevAttrUse = -1;
reckeys.prevAttrSet = -1;
reckeys.prevSeqNo = 0;
+ for (i = 0; i<256; i++)
+ extractCtrl.seqno[i] = 0;
recordOffset = fi->file_moffset;
extractCtrl.offset = recordOffset;
extractCtrl.readf = file_read;
extractCtrl.seekf = file_seek;
+ extractCtrl.tellf = file_tell;
extractCtrl.endf = file_end;
- extractCtrl.map_chrs_input = map_chrs_input;
- extractCtrl.flagShowRecords = rGroup->flagShowRecords;
- if (rGroup->flagShowRecords)
+ extractCtrl.zebra_maps = rGroup->zebra_maps;
+ extractCtrl.flagShowRecords = !rGroup->flagRw;
+ if (!rGroup->flagRw)
printf ("File: %s %ld\n", fname, (long) recordOffset);
logInfo.fname = fname;
if (r)
{
/* error occured during extraction ... */
- if (!rGroup->flagShowRecords &&
- records_processed < rGroup->fileVerboseLimit)
+ if (rGroup->flagRw &&
+ records_processed < rGroup->fileVerboseLimit)
{
logf (LOG_WARN, "fail %s %s %ld code = %d", rGroup->recordType,
fname, (long) recordOffset, r);
{
/* the extraction process returned no information - the record
is probably empty - unless flagShowRecords is in use */
- if (rGroup->flagShowRecords)
+ if (!rGroup->flagRw)
return 1;
logf (LOG_WARN, "No keys generated for file %s", fname);
logf (LOG_WARN, " The file is probably empty");
/* new record */
if (deleteFlag)
{
- logf (LOG_LOG, "Cannot delete new record");
+ logf (LOG_LOG, "delete %s %s %ld", rGroup->recordType,
+ fname, (long) recordOffset);
+ logf (LOG_WARN, "cannot delete record above (seems new)");
return 1;
}
if (records_processed < rGroup->fileVerboseLimit)
logf (LOG_LOG, "add %s %s %ld", rGroup->recordType,
fname, (long) recordOffset);
rec = rec_new (records);
+
*sysno = rec->sysno;
+ recordAttr = rec_init_attr (zti, rec);
+
if (matchStr)
{
dict_insert (matchDict, matchStr, sizeof(*sysno), sysno);
}
flushRecordKeys (*sysno, 1, &reckeys, rGroup->databaseName);
+ flushSortKeys (*sysno, 1);
records_inserted++;
}
rec = rec_get (records, *sysno);
assert (rec);
+
+ recordAttr = rec_init_attr (zti, rec);
+
+ if (recordAttr->runNumber == zebraExplain_runNumberIncrement (zti, 0))
+ {
+ logf (LOG_LOG, "skipped %s %s %ld", rGroup->recordType,
+ fname, (long) recordOffset);
+ rec_rm (&rec);
+ logRecord (0);
+ return 1;
+ }
delkeys.buf_used = rec->size[recInfo_delKeys];
delkeys.buf = rec->info[recInfo_delKeys];
+ flushSortKeys (*sysno, 0);
flushRecordKeys (*sysno, 0, &delkeys, rec->info[recInfo_databaseName]);
if (deleteFlag)
{
dict_delete (matchDict, matchStr);
rec_del (records, &rec);
}
+ rec_rm (&rec);
logRecord (0);
return 1;
}
rec->size[recInfo_delKeys] = 0;
}
+ /* save file size of original record */
+ zebraExplain_recordBytesIncrement (zti, - recordAttr->recordSize);
+ recordAttr->recordSize = fi->file_moffset - recordOffset;
+ if (!recordAttr->recordSize)
+ recordAttr->recordSize = fi->file_max - recordOffset;
+ zebraExplain_recordBytesIncrement (zti, recordAttr->recordSize);
+
+ /* set run-number for this record */
+ recordAttr->runNumber = zebraExplain_runNumberIncrement (zti, 0);
+
/* update store data */
xfree (rec->info[recInfo_storeData]);
if (rGroup->flagStoreData == 1)
{
- int size = fi->file_moffset - recordOffset;
- if (!size)
- size = fi->file_max - recordOffset;
- rec->size[recInfo_storeData] = size;
- rec->info[recInfo_storeData] = xmalloc (size);
+ rec->size[recInfo_storeData] = recordAttr->recordSize;
+ rec->info[recInfo_storeData] = xmalloc (recordAttr->recordSize);
if (lseek (fi->fd, recordOffset, SEEK_SET) < 0)
{
logf (LOG_ERRNO|LOG_FATAL, "seek to %ld in %s", fname,
(long) recordOffset);
exit (1);
}
- if (read (fi->fd, rec->info[recInfo_storeData], size) < size)
+ if (read (fi->fd, rec->info[recInfo_storeData], recordAttr->recordSize)
+ < recordAttr->recordSize)
{
logf (LOG_ERRNO|LOG_FATAL, "read %d bytes of %s",
- fi->file_max, fname);
+ recordAttr->recordSize, fname);
exit (1);
}
}
rec_strdup (rGroup->databaseName, &rec->size[recInfo_databaseName]);
/* update offset */
- xfree (rec->info[recInfo_offset]);
-
- rec->size[recInfo_offset] = sizeof(recordOffset);
- rec->info[recInfo_offset] = xmalloc (sizeof(recordOffset));
- memcpy (rec->info[recInfo_offset], &recordOffset, sizeof(recordOffset));
+ recordAttr->recordOffset = recordOffset;
/* commit this record */
rec_put (records, &rec);
fd = -1;
else
{
- if ((fd = open (fname, O_RDONLY)) == -1)
+ if ((fd = open (fname, O_BINARY|O_RDONLY)) == -1)
{
logf (LOG_WARN|LOG_ERRNO, "open %s", fname);
return 0;