cleanup docseq, arrange things so that we can page reslist past the initial result count estimate if there are more

This commit is contained in:
dockes
2007-01-19 10:32:39 +00:00
parent ff48af310d
commit b05230b00b
13 changed files with 473 additions and 259 deletions
+11 -64
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@@ -1,5 +1,5 @@
#ifndef lint
static char rcsid[] = "@(#$Id: docseq.cpp,v 1.9 2006-09-13 14:57:56 dockes Exp $ (C) 2005 J.F.Dockes";
static char rcsid[] = "@(#$Id: docseq.cpp,v 1.10 2007-01-19 10:32:39 dockes Exp $ (C) 2005 J.F.Dockes";
#endif
/*
* This program is free software; you can redistribute it and/or modify
@@ -22,70 +22,17 @@ static char rcsid[] = "@(#$Id: docseq.cpp,v 1.9 2006-09-13 14:57:56 dockes Exp $
#include "docseq.h"
bool DocSequenceDb::getDoc(int num, Rcl::Doc &doc, int *percent, string *sh)
int DocSequence::getSeqSlice(int offs, int cnt, vector<ResListEntry>& result)
{
if (sh) sh->erase();
return m_db ? m_db->getDoc(num, doc, percent) : false;
}
int DocSequenceDb::getResCnt()
{
if (!m_db)
return -1;
if (m_rescnt < 0) {
m_rescnt= m_db->getResCnt();
int ret = 0;
for (int num = offs; num < offs + cnt; num++, ret++) {
result.push_back(ResListEntry());
if (!getDoc(num, result.back().doc, &result.back().percent,
&result.back().subHeader)) {
result.pop_back();
return ret;
}
}
return m_rescnt;
}
void DocSequenceDb::getTerms(list<string> &terms)
{
if (!m_db)
return;
m_db->getQueryTerms(terms);
}
bool DocSequenceHistory::getDoc(int num, Rcl::Doc &doc, int *percent,
string *sh)
{
// Retrieve history list
if (!m_hist)
return false;
if (m_hlist.empty())
m_hlist = m_hist->getDocHistory();
if (num < 0 || num >= (int)m_hlist.size())
return false;
int skip;
if (m_prevnum >= 0 && num >= m_prevnum) {
skip = num - m_prevnum;
} else {
skip = num;
m_it = m_hlist.begin();
m_prevtime = -1;
}
m_prevnum = num;
while (skip--)
m_it++;
if (percent)
*percent = 100;
if (sh) {
if (m_prevtime < 0 || abs(m_prevtime - m_it->unixtime) > 86400) {
m_prevtime = m_it->unixtime;
time_t t = (time_t)(m_it->unixtime);
*sh = string(ctime(&t));
// Get rid of the final \n in ctime
sh->erase(sh->length()-1);
} else
sh->erase();
}
return m_db->getDoc(m_it->fn, m_it->ipath, doc, percent);
}
int DocSequenceHistory::getResCnt()
{
if (m_hlist.empty())
m_hlist = m_hist->getDocHistory();
return m_hlist.size();
return ret;
}
+33 -43
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@@ -16,28 +16,37 @@
*/
#ifndef _DOCSEQ_H_INCLUDED_
#define _DOCSEQ_H_INCLUDED_
/* @(#$Id: docseq.h,v 1.9 2006-09-13 14:57:56 dockes Exp $ (C) 2004 J.F.Dockes */
/* @(#$Id: docseq.h,v 1.10 2007-01-19 10:32:39 dockes Exp $ (C) 2004 J.F.Dockes */
#include <string>
#include <list>
#include <vector>
#ifndef NO_NAMESPACES
using std::string;
using std::list;
using std::vector;
#endif
#include "rcldb.h"
#include "history.h"
#include "rcldoc.h"
// A result list entry.
struct ResListEntry {
Rcl::Doc doc;
int percent;
string subHeader;
ResListEntry() : percent(0) {}
};
/** Interface for a list of documents coming from some source.
The result list display data may come from different sources (ie:
history or Db query). We have an interface to make things cleaner.
history or Db query), and be post-processed (DocSeqSorted).
*/
class DocSequence {
public:
DocSequence(const string &t) : m_title(t) {}
virtual ~DocSequence() {}
/** Get document at given rank
/** Get document at given rank.
*
* @param num document rank in sequence
* @param doc return data
@@ -52,49 +61,30 @@ class DocSequence {
*/
virtual bool getDoc(int num, Rcl::Doc &doc, int *percent, string *sh = 0)
= 0;
/** Get next page of documents. This accumulates entries into the result
* list (doesn't reset it). */
virtual int getSeqSlice(int offs, int cnt, vector<ResListEntry>& result);
/** Get abstract for document. This is special because it may take time.
* The default is to return the input doc's abstract fields, but some
* sequences can compute a better value (ie: docseqdb) */
virtual string getAbstract(Rcl::Doc& doc) {
return doc.abstract;
}
/** Get estimated total count in results */
virtual int getResCnt() = 0;
/** Get title for result list */
virtual string title() {return m_title;}
/** Get search terms (for highlighting abstracts). Some sequences
* may have no associated search terms. Implement this for them. */
virtual void getTerms(list<string>& t) {t.clear();}
private:
string m_title;
};
/** A DocSequence from a Db query (there should be one active for this
to make sense */
class DocSequenceDb : public DocSequence {
public:
DocSequenceDb(Rcl::Db *d, const string &t) :
DocSequence(t), m_db(d), m_rescnt(-1)
{}
virtual ~DocSequenceDb() {}
virtual bool getDoc(int num, Rcl::Doc &doc, int *percent, string * = 0);
virtual int getResCnt();
virtual void getTerms(list<string>&);
private:
Rcl::Db *m_db;
int m_rescnt;
};
/** A DocSequence coming from the history file */
class DocSequenceHistory : public DocSequence {
public:
DocSequenceHistory(Rcl::Db *d, RclHistory *h, const string &t)
: DocSequence(t), m_db(d), m_hist(h), m_prevnum(-1), m_prevtime(-1) {}
virtual ~DocSequenceHistory() {}
virtual bool getDoc(int num, Rcl::Doc &doc, int *percent, string *sh = 0);
virtual int getResCnt();
private:
Rcl::Db *m_db;
RclHistory *m_hist;
int m_prevnum;
long m_prevtime;
list<RclDHistoryEntry> m_hlist;
list<RclDHistoryEntry>::const_iterator m_it;
};
#endif /* _DOCSEQ_H_INCLUDED_ */
+57
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@@ -0,0 +1,57 @@
#ifndef lint
static char rcsid[] = "@(#$Id: docseqdb.cpp,v 1.1 2007-01-19 10:32:39 dockes Exp $ (C) 2005 J.F.Dockes";
#endif
/*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <math.h>
#include <time.h>
#include "docseqdb.h"
#include "rcldb.h"
bool DocSequenceDb::getDoc(int num, Rcl::Doc &doc, int *percent, string *sh)
{
if (sh) sh->erase();
return m_db ? m_db->getDoc(num, doc, percent) : false;
}
int DocSequenceDb::getResCnt()
{
if (!m_db)
return -1;
if (m_rescnt < 0) {
m_rescnt= m_db->getResCnt();
}
return m_rescnt;
}
void DocSequenceDb::getTerms(list<string> &terms)
{
if (!m_db)
return;
m_db->getQueryTerms(terms);
}
string DocSequenceDb::getAbstract(Rcl::Doc &doc)
{
if (!m_db)
return doc.abstract;
string abstract;
m_db->makeDocAbstract(doc, abstract);
return abstract.empty() ? doc.abstract : abstract;
}
+50
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@@ -0,0 +1,50 @@
/*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _DOCSEQDB_H_INCLUDED_
#define _DOCSEQDB_H_INCLUDED_
/* @(#$Id: docseqdb.h,v 1.1 2007-01-19 10:32:39 dockes Exp $ (C) 2004 J.F.Dockes */
#include <string>
#include <list>
#ifndef NO_NAMESPACES
using std::string;
using std::list;
#endif
#include "docseq.h"
namespace Rcl {
class Db;
}
/** A DocSequence from a Db query (there should be one active for this
to make sense */
class DocSequenceDb : public DocSequence {
public:
DocSequenceDb(Rcl::Db *d, const string &t) :
DocSequence(t), m_db(d), m_rescnt(-1)
{}
virtual ~DocSequenceDb() {}
virtual bool getDoc(int num, Rcl::Doc &doc, int *percent, string * = 0);
virtual int getResCnt();
virtual void getTerms(list<string>&);
virtual string getAbstract(Rcl::Doc &doc);
private:
Rcl::Db *m_db;
int m_rescnt;
};
#endif /* _DOCSEQDB_H_INCLUDED_ */
+68
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@@ -0,0 +1,68 @@
#ifndef lint
static char rcsid[] = "@(#$Id: docseqhist.cpp,v 1.1 2007-01-19 10:32:39 dockes Exp $ (C) 2005 J.F.Dockes";
#endif
/*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <math.h>
#include <time.h>
#include "docseqhist.h"
#include "rcldb.h"
bool DocSequenceHistory::getDoc(int num, Rcl::Doc &doc, int *percent,
string *sh)
{
// Retrieve history list
if (!m_hist)
return false;
if (m_hlist.empty())
m_hlist = m_hist->getDocHistory();
if (num < 0 || num >= (int)m_hlist.size())
return false;
int skip;
if (m_prevnum >= 0 && num >= m_prevnum) {
skip = num - m_prevnum;
} else {
skip = num;
m_it = m_hlist.begin();
m_prevtime = -1;
}
m_prevnum = num;
while (skip--)
m_it++;
if (percent)
*percent = 100;
if (sh) {
if (m_prevtime < 0 || abs(m_prevtime - m_it->unixtime) > 86400) {
m_prevtime = m_it->unixtime;
time_t t = (time_t)(m_it->unixtime);
*sh = string(ctime(&t));
// Get rid of the final \n in ctime
sh->erase(sh->length()-1);
} else
sh->erase();
}
return m_db->getDoc(m_it->fn, m_it->ipath, doc, percent);
}
int DocSequenceHistory::getResCnt()
{
if (m_hlist.empty())
m_hlist = m_hist->getDocHistory();
return m_hlist.size();
}
+55
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@@ -0,0 +1,55 @@
/*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _DOCSEQHIST_H_INCLUDED_
#define _DOCSEQHIST_H_INCLUDED_
/* @(#$Id: docseqhist.h,v 1.1 2007-01-19 10:32:39 dockes Exp $ (C) 2004 J.F.Dockes */
#include <string>
#include <list>
#ifndef NO_NAMESPACES
using std::string;
using std::list;
#endif
#include "docseq.h"
#include "history.h"
namespace Rcl {
class Db;
}
class RclHistory;
/** A DocSequence coming from the history file.
* History is kept as a list of urls. This queries the db to fetch
* metadata for an url key */
class DocSequenceHistory : public DocSequence {
public:
DocSequenceHistory(Rcl::Db *d, RclHistory *h, const string &t)
: DocSequence(t), m_db(d), m_hist(h), m_prevnum(-1), m_prevtime(-1) {}
virtual ~DocSequenceHistory() {}
virtual bool getDoc(int num, Rcl::Doc &doc, int *percent, string *sh = 0);
virtual int getResCnt();
private:
Rcl::Db *m_db;
RclHistory *m_hist;
int m_prevnum;
long m_prevtime;
list<RclDHistoryEntry> m_hlist;
list<RclDHistoryEntry>::const_iterator m_it;
};
#endif /* _DOCSEQ_H_INCLUDED_ */
+7 -2
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@@ -1,5 +1,5 @@
#ifndef lint
static char rcsid[] = "@(#$Id: sortseq.cpp,v 1.9 2006-12-05 15:18:48 dockes Exp $ (C) 2005 J.F.Dockes";
static char rcsid[] = "@(#$Id: sortseq.cpp,v 1.10 2007-01-19 10:32:39 dockes Exp $ (C) 2005 J.F.Dockes";
#endif
/*
* This program is free software; you can redistribute it and/or modify
@@ -84,7 +84,7 @@ public:
DocSeqSorted::DocSeqSorted(RefCntr<DocSequence> iseq, DocSeqSortSpec &sortspec,
const std::string &t)
: DocSequence(t)
: DocSequence(t), m_seq(iseq)
{
m_spec = sortspec;
LOGDEB(("DocSeqSorted:: count %d\n", m_spec.sortwidth));
@@ -120,3 +120,8 @@ bool DocSeqSorted::getDoc(int num, Rcl::Doc &doc, int *percent, string *)
doc = *m_docsp[num];
return true;
}
string DocSeqSorted::getAbstract(Rcl::Doc& doc)
{
return m_seq->getAbstract(doc);
}
+5 -3
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@@ -16,7 +16,7 @@
*/
#ifndef _SORTSEQ_H_INCLUDED_
#define _SORTSEQ_H_INCLUDED_
/* @(#$Id: sortseq.h,v 1.8 2006-12-05 15:18:48 dockes Exp $ (C) 2004 J.F.Dockes */
/* @(#$Id: sortseq.h,v 1.9 2007-01-19 10:32:39 dockes Exp $ (C) 2004 J.F.Dockes */
#include <vector>
#include <string>
@@ -48,10 +48,12 @@ class DocSeqSorted : public DocSequence {
virtual ~DocSeqSorted() {}
virtual bool getDoc(int num, Rcl::Doc &doc, int *percent, string *sh = 0);
virtual int getResCnt() {return m_spec.sortwidth;}
virtual string getAbstract(Rcl::Doc& doc);
private:
DocSeqSortSpec m_spec;
std::vector<Rcl::Doc> m_docs;
RefCntr<DocSequence> m_seq;
DocSeqSortSpec m_spec;
std::vector<Rcl::Doc> m_docs;
std::vector<Rcl::Doc *> m_docsp;
};