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authorBrion Vibber <brion@pobox.com>2009-11-03 16:57:39 -0800
committerBrion Vibber <brion@pobox.com>2009-11-10 13:44:40 -0800
commit53c86c43c4b8cba313335f5d70f7f77d4ab640d2 (patch)
tree96de2e9f0793685e35702946ec8539edbcf80921 /plugins/SphinxSearch/sphinxsearch.php
parent1cd6650ae43d548f209d68e9feaaa7185d5ffecb (diff)
Bringing Sphinx search support up to code: broken out to a plugin, now supports multiple sites on a single server.
Upgrade notes: * Index names have changed from hardcoded 'Identica_people' and 'Identica_notices' to use the database name and actual table names. Must reindex. New events: * GetSearchEngine to override default search engine class selection from plugins New scripts: * gen_config.php generates a sphinx.conf from database configuration (with theoretical support for status_network table, but it doesn't seem to be cleanly queriable right now without knowing the db setup info for that. Needs generalized support.) * Replaced old sphinx-indexer.sh and sphinx-cron.sh with index_update.php Other fixes: * sphinx.conf.sample better matches our live config, skipping unused stopword list and using a more realistic indexer memory limit Further notes: * Probably doesn't work right with PostgreSQL yet; Sphinx can pull from PG but the extraction queries currently look like they use some MySQL-specific functions.
Diffstat (limited to 'plugins/SphinxSearch/sphinxsearch.php')
-rw-r--r--plugins/SphinxSearch/sphinxsearch.php96
1 files changed, 96 insertions, 0 deletions
diff --git a/plugins/SphinxSearch/sphinxsearch.php b/plugins/SphinxSearch/sphinxsearch.php
new file mode 100644
index 000000000..71f330828
--- /dev/null
+++ b/plugins/SphinxSearch/sphinxsearch.php
@@ -0,0 +1,96 @@
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, StatusNet, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+if (!defined('STATUSNET')) {
+ exit(1);
+}
+
+class SphinxSearch extends SearchEngine
+{
+ private $sphinx;
+ private $connected;
+
+ function __construct($target, $table)
+ {
+ $fp = @fsockopen(common_config('sphinx', 'server'), common_config('sphinx', 'port'));
+ if (!$fp) {
+ $this->connected = false;
+ return;
+ }
+ fclose($fp);
+ parent::__construct($target, $table);
+ $this->sphinx = new SphinxClient;
+ $this->sphinx->setServer(common_config('sphinx', 'server'), common_config('sphinx', 'port'));
+ $this->connected = true;
+ }
+
+ function is_connected()
+ {
+ return $this->connected;
+ }
+
+ function limit($offset, $count, $rss = false)
+ {
+ //FIXME without LARGEST_POSSIBLE, the most recent results aren't returned
+ // this probably has a large impact on performance
+ $LARGEST_POSSIBLE = 1e6;
+
+ if ($rss) {
+ $this->sphinx->setLimits($offset, $count, $count, $LARGEST_POSSIBLE);
+ }
+ else {
+ // return at most 50 pages of results
+ $this->sphinx->setLimits($offset, $count, 50 * ($count - 1), $LARGEST_POSSIBLE);
+ }
+
+ return $this->target->limit(0, $count);
+ }
+
+ function query($q)
+ {
+ $result = $this->sphinx->query($q, $this->remote_table());
+ if (!isset($result['matches'])) return false;
+ $id_set = join(', ', array_keys($result['matches']));
+ $this->target->whereAdd("id in ($id_set)");
+ return true;
+ }
+
+ function set_sort_mode($mode)
+ {
+ if ('chron' === $mode) {
+ $this->sphinx->SetSortMode(SPH_SORT_ATTR_DESC, 'created_ts');
+ return $this->target->orderBy('created desc');
+ }
+ }
+
+ function remote_table()
+ {
+ return $this->dbname() . '_' . $this->table;
+ }
+
+ function dbname()
+ {
+ // @fixme there should be a less dreadful way to do this.
+ // DB objects won't give database back until they connect, it's confusing
+ if (preg_match('!^.*?://.*?:.*?@.*?/(.*?)$!', common_config('db', 'database'), $matches)) {
+ return $matches[1];
+ }
+ throw new ServerException("Sphinx search could not identify database name");
+ }
+}