/* Copyright (C) 2004 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.
*/
#ifdef HAVE_CONFIG_H
#include "autoconfig.h"
#endif
#include <stdio.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include <algorithm>
#include "cstr.h"
#include "debuglog.h"
#include "indexer.h"
#include "fsindexer.h"
#include "beaglequeue.h"
#include "mimehandler.h"
#ifdef RCL_USE_ASPELL
#include "rclaspell.h"
#endif
ConfIndexer::ConfIndexer(RclConfig *cnf, DbIxStatusUpdater *updfunc)
: m_config(cnf), m_db(cnf), m_fsindexer(0),
m_dobeagle(false), m_beagler(0),
m_updater(updfunc)
{
m_config->getConfParam("processbeaglequeue", &m_dobeagle);
}
ConfIndexer::~ConfIndexer()
{
deleteZ(m_fsindexer);
deleteZ(m_beagler);
}
bool ConfIndexer::index(bool resetbefore, ixType typestorun)
{
Rcl::Db::OpenMode mode = resetbefore ? Rcl::Db::DbTrunc : Rcl::Db::DbUpd;
if (!m_db.open(mode)) {
LOGERR(("ConfIndexer: error opening database %s : %s\n",
m_config->getDbDir().c_str(), m_db.getReason().c_str()));
return false;
}
m_config->setKeyDir(cstr_null);
if (typestorun & IxTFs) {
deleteZ(m_fsindexer);
m_fsindexer = new FsIndexer(m_config, &m_db, m_updater);
if (!m_fsindexer || !m_fsindexer->index()) {
return false;
}
}
if (m_dobeagle && (typestorun & IxTBeagleQueue)) {
deleteZ(m_beagler);
m_beagler = new BeagleQueueIndexer(m_config, &m_db, m_updater);
if (!m_beagler || !m_beagler->index()) {
return false;
}
}
if (typestorun == IxTAll) {
// Get rid of all database entries that don't exist in the
// filesystem anymore. Only if all *configured* indexers ran.
if (m_updater && !m_updater->update(DbIxStatus::DBIXS_PURGE, string()))
return false;
m_db.purge();
}
// The close would be done in our destructor, but we want status
// here. Makes no sense to check for cancel, we'll have to close
// anyway
if (m_updater)
m_updater->update(DbIxStatus::DBIXS_CLOSING, string());
if (!m_db.close()) {
LOGERR(("ConfIndexer::index: error closing database in %s\n",
m_config->getDbDir().c_str()));
return false;
}
if (m_updater && !m_updater->update(DbIxStatus::DBIXS_CLOSING, string()))
return false;
createStemmingDatabases();
if (m_updater && !m_updater->update(DbIxStatus::DBIXS_CLOSING, string()))
return false;
createAspellDict();
clearMimeHandlerCache();
if (m_updater)
m_updater->update(DbIxStatus::DBIXS_DONE, string());
return true;
}
bool ConfIndexer::indexFiles(list<string>& ifiles, IxFlag flag)
{
list<string> myfiles;
for (list<string>::const_iterator it = ifiles.begin();
it != ifiles.end(); it++) {
myfiles.push_back(path_canon(*it));
}
myfiles.sort();
if (!m_db.open(Rcl::Db::DbUpd)) {
LOGERR(("ConfIndexer: indexFiles error opening database %s\n",
m_config->getDbDir().c_str()));
return false;
}
m_config->setKeyDir(cstr_null);
bool ret = false;
if (!m_fsindexer)
m_fsindexer = new FsIndexer(m_config, &m_db, m_updater);
if (m_fsindexer)
ret = m_fsindexer->indexFiles(myfiles, flag);
LOGDEB2(("ConfIndexer::indexFiles: fsindexer returned %d, "
"%d files remainining\n", ret, myfiles.size()));
if (m_dobeagle && !myfiles.empty()) {
if (!m_beagler)
m_beagler = new BeagleQueueIndexer(m_config, &m_db, m_updater);
if (m_beagler) {
ret = ret && m_beagler->indexFiles(myfiles);
} else {
ret = false;
}
}
// The close would be done in our destructor, but we want status here
if (!m_db.close()) {
LOGERR(("ConfIndexer::index: error closing database in %s\n",
m_config->getDbDir().c_str()));
return false;
}
ifiles = myfiles;
clearMimeHandlerCache();
return ret;
}
bool ConfIndexer::docsToPaths(vector<Rcl::Doc> &docs, vector<string> &paths)
{
for (vector<Rcl::Doc>::iterator it = docs.begin(); it != docs.end(); it++) {
Rcl::Doc &idoc = *it;
string backend;
idoc.getmeta(Rcl::Doc::keybcknd, &backend);
// This only makes sense for file system files: beagle docs are
// always up to date because they can't be updated in the cache,
// only added/removed. Same remark as made inside internfile, we
// need a generic way to handle backends.
if (!backend.empty() && backend.compare("FS"))
continue;
// Filesystem document. The url has to be like file://
if (idoc.url.find(cstr_fileu) != 0) {
LOGERR(("idx::docsToPaths: FS backend and non fs url: [%s]\n",
idoc.url.c_str()));
continue;
}
paths.push_back(idoc.url.substr(7, string::npos));
}
return true;
}
// Update index for specific documents. The docs come from an index
// query, so the udi, backend etc. fields are filled.
bool ConfIndexer::updateDocs(std::vector<Rcl::Doc> &docs, IxFlag flag)
{
vector<string> paths;
docsToPaths(docs, paths);
list<string> files(paths.begin(), paths.end());
if (!files.empty()) {
return indexFiles(files, flag);
}
return true;
}
bool ConfIndexer::purgeFiles(std::list<string> &files)
{
list<string> myfiles;
for (list<string>::const_iterator it = files.begin();
it != files.end(); it++) {
myfiles.push_back(path_canon(*it));
}
myfiles.sort();
if (!m_db.open(Rcl::Db::DbUpd)) {
LOGERR(("ConfIndexer: purgeFiles error opening database %s\n",
m_config->getDbDir().c_str()));
return false;
}
bool ret = false;
m_config->setKeyDir(cstr_null);
if (!m_fsindexer)
m_fsindexer = new FsIndexer(m_config, &m_db, m_updater);
if (m_fsindexer)
ret = m_fsindexer->purgeFiles(myfiles);
if (m_dobeagle && !myfiles.empty()) {
if (!m_beagler)
m_beagler = new BeagleQueueIndexer(m_config, &m_db, m_updater);
if (m_beagler) {
ret = ret && m_beagler->purgeFiles(myfiles);
} else {
ret = false;
}
}
// The close would be done in our destructor, but we want status here
if (!m_db.close()) {
LOGERR(("ConfIndexer::purgefiles: error closing database in %s\n",
m_config->getDbDir().c_str()));
return false;
}
return ret;
}
// Create stemming databases. We also remove those which are not
// configured.
bool ConfIndexer::createStemmingDatabases()
{
string slangs;
if (m_config->getConfParam("indexstemminglanguages", slangs)) {
if (!m_db.open(Rcl::Db::DbUpd)) {
LOGERR(("ConfIndexer::createStemmingDb: could not open db\n"))
return false;
}
vector<string> langs;
stringToStrings(slangs, langs);
// Get the list of existing stem dbs from the database (some may have
// been manually created, we just keep those from the config
vector<string> dblangs = m_db.getStemLangs();
vector<string>::const_iterator it;
for (it = dblangs.begin(); it != dblangs.end(); it++) {
if (find(langs.begin(), langs.end(), *it) == langs.end())
m_db.deleteStemDb(*it);
}
for (it = langs.begin(); it != langs.end(); it++) {
if (m_updater && !m_updater->update(DbIxStatus::DBIXS_STEMDB, *it))
return false;
m_db.createStemDb(*it);
}
}
m_db.close();
return true;
}
bool ConfIndexer::createStemDb(const string &lang)
{
if (!m_db.open(Rcl::Db::DbUpd)) {
return false;
}
return m_db.createStemDb(lang);
}
// The language for the aspell dictionary is handled internally by the aspell
// module, either from a configuration variable or the NLS environment.
bool ConfIndexer::createAspellDict()
{
LOGDEB2(("ConfIndexer::createAspellDict()\n"));
#ifdef RCL_USE_ASPELL
// For the benefit of the real-time indexer, we only initialize
// noaspell from the configuration once. It can then be set to
// true if dictionary generation fails, which avoids retrying
// it forever.
static int noaspell = -12345;
if (noaspell == -12345) {
noaspell = false;
m_config->getConfParam("noaspell", &noaspell);
}
if (noaspell)
return true;
if (!m_db.open(Rcl::Db::DbRO)) {
LOGERR(("ConfIndexer::createAspellDict: could not open db\n"));
return false;
}
Aspell aspell(m_config);
string reason;
if (!aspell.init(reason)) {
LOGERR(("ConfIndexer::createAspellDict: aspell init failed: %s\n",
reason.c_str()));
noaspell = true;
return false;
}
LOGDEB(("ConfIndexer::createAspellDict: creating dictionary\n"));
if (!aspell.buildDict(m_db, reason)) {
LOGERR(("ConfIndexer::createAspellDict: aspell buildDict failed: %s\n",
reason.c_str()));
noaspell = true;
return false;
}
#endif
return true;
}
vector<string> ConfIndexer::getStemmerNames()
{
return Rcl::Db::getStemmerNames();
}