/* Copyright (C) 2005 J.F.Dockes
* 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 "debuglog.h"
#include "filtseq.h"
#include "rclconfig.h"
using std::string;
static bool filter(const DocSeqFiltSpec& fs, const Rcl::Doc *x)
{
LOGDEB2((" Filter: ncrits %d\n", fs.crits.size()));
// Compare using each criterion in term. We're doing an or:
// 1st ok ends
for (unsigned int i = 0; i < fs.crits.size(); i++) {
switch (fs.crits[i]) {
case DocSeqFiltSpec::DSFS_MIMETYPE:
LOGDEB2((" filter: MIMETYPE: me [%s] doc [%s]\n",
fs.values[i].c_str(), x->mimetype.c_str()));
if (x->mimetype == fs.values[i])
return true;
break;
case DocSeqFiltSpec::DSFS_QLANG:
{
LOGDEB((" filter: QLANG [%s]!!\n", fs.values[i].c_str()));
}
break;
case DocSeqFiltSpec::DSFS_PASSALL:
return true;
}
}
// Did all comparisons
return false;
}
DocSeqFiltered::DocSeqFiltered(RclConfig *conf, RefCntr<DocSequence> iseq,
DocSeqFiltSpec &filtspec)
: DocSeqModifier(iseq), m_config(conf)
{
setFiltSpec(filtspec);
}
bool DocSeqFiltered::setFiltSpec(DocSeqFiltSpec &filtspec)
{
LOGDEB0(("DocSeqFiltered::setFiltSpec\n"));
for (unsigned int i = 0; i < filtspec.crits.size(); i++) {
switch (filtspec.crits[i]) {
case DocSeqFiltSpec::DSFS_MIMETYPE:
m_spec.orCrit(filtspec.crits[i], filtspec.values[i]);
break;
case DocSeqFiltSpec::DSFS_QLANG:
{
// There are very few lang constructs that we can
// interpret. The default config uses rclcat:value
// only. That will be all for now...
string val = filtspec.values[i];
if (val.find("rclcat:") == 0) {
string catg = val.substr(7);
vector<string> tps;
m_config->getMimeCatTypes(catg, tps);
for (vector<string>::const_iterator it = tps.begin();
it != tps.end(); it++) {
LOGDEB2(("Adding mime: [%s]\n", it->c_str()));
m_spec.orCrit(DocSeqFiltSpec::DSFS_MIMETYPE, *it);
}
}
}
break;
default:
break;
}
}
// If m_spec ends up empty, pass everything, better than filtering all.
if (m_spec.crits.empty()) {
m_spec.orCrit(DocSeqFiltSpec::DSFS_PASSALL, "");
}
m_dbindices.clear();
return true;
}
bool DocSeqFiltered::getDoc(int idx, Rcl::Doc &doc, string *)
{
LOGDEB2(("DocSeqFiltered::getDoc() fetching %d\n", idx));
if (idx >= (int)m_dbindices.size()) {
// Have to fetch docs and filter until we get enough or
// fail
m_dbindices.reserve(idx+1);
// First backend seq doc we fetch is the one after last stored
int backend_idx = m_dbindices.size() > 0 ? m_dbindices.back() + 1 : 0;
// Loop until we get enough docs
Rcl::Doc tdoc;
int i = 0;
while (idx >= (int)m_dbindices.size()) {
if (!m_seq->getDoc(backend_idx, tdoc))
return false;
if (filter(m_spec, &tdoc)) {
m_dbindices.push_back(backend_idx);
}
backend_idx++;
}
doc = tdoc;
} else {
// The corresponding backend indice is already known
if (!m_seq->getDoc(m_dbindices[idx], doc))
return false;
}
return true;
}