#ifndef lint
static char rcsid[] = "@(#$Id: sortseq.cpp,v 1.9 2006-12-05 15:18:48 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 <algorithm>
#include "debuglog.h"
#include "sortseq.h"
using std::string;
class CompareDocs {
DocSeqSortSpec ss;
public:
CompareDocs(const DocSeqSortSpec &sortspec) : ss(sortspec) {}
// It's not too clear in the std::sort doc what this should do. This
// behaves as operator<
int operator()(const Rcl::Doc *x, const Rcl::Doc *y)
{
LOGDEB1(("Comparing .. \n"));
// Compare using each criterion in term. Further comparisons must only
// be made if previous order ones are equal.
for (unsigned int i = 0; i < ss.crits.size(); i++) {
switch (ss.crits[i]) {
case DocSeqSortSpec::RCLFLD_MTIME:
{
long xmtime = x->dmtime.empty() ? atol(x->fmtime.c_str()) :
atol(x->dmtime.c_str());
long ymtime = y->dmtime.empty() ? atol(y->fmtime.c_str()) :
atol(y->dmtime.c_str());
LOGDEB1((" MTIME %ld %ld\n", xmtime, ymtime));
if (ss.dirs[i] ? xmtime > ymtime : xmtime < ymtime)
return 1;
else if (xmtime != ymtime)
return 0;
}
break;
case DocSeqSortSpec::RCLFLD_URL:
LOGDEB1((" URL\n"));
if (ss.dirs[i] ? x->url > y->url : x->url < y->url)
return 1;
else if (x->url != y->url)
return 0;
break;
case DocSeqSortSpec::RCLFLD_IPATH:
LOGDEB1((" IPATH\n"));
if (ss.dirs[i] ? x->ipath > y->ipath : x->ipath < y->ipath)
return 1;
else if (x->ipath != y->ipath)
return 0;
break;
case DocSeqSortSpec::RCLFLD_MIMETYPE:
LOGDEB1((" MIMETYPE\n"));
if (ss.dirs[i] ? x->mimetype > y->mimetype :
x->mimetype < y->mimetype)
return 1;
else if (x->mimetype != y->mimetype)
return 0;
break;
}
}
// Did all comparisons
return 0;
}
};
DocSeqSorted::DocSeqSorted(RefCntr<DocSequence> iseq, DocSeqSortSpec &sortspec,
const std::string &t)
: DocSequence(t)
{
m_spec = sortspec;
LOGDEB(("DocSeqSorted:: count %d\n", m_spec.sortwidth));
m_docs.resize(m_spec.sortwidth);
int i;
for (i = 0; i < m_spec.sortwidth; i++) {
int percent;
if (!iseq->getDoc(i, m_docs[i], &percent)) {
LOGERR(("DocSeqSorted: getDoc failed for doc %d\n", i));
break;
}
m_docs[i].pc = percent;
}
m_spec.sortwidth = i;
LOGDEB(("DocSeqSorted:: m_count %d\n", m_spec.sortwidth));
m_docs.resize(m_spec.sortwidth);
m_docsp.resize(m_spec.sortwidth);
for (i = 0; i < m_spec.sortwidth; i++)
m_docsp[i] = &m_docs[i];
CompareDocs cmp(sortspec);
sort(m_docsp.begin(), m_docsp.end(), cmp);
}
bool DocSeqSorted::getDoc(int num, Rcl::Doc &doc, int *percent, string *)
{
LOGDEB1(("DocSeqSorted: fetching %d\n", num));
if (num >= m_spec.sortwidth)
return false;
if (percent)
*percent = (*m_docsp[num]).pc;
doc = *m_docsp[num];
return true;
}