Drupal_Apache_Solr_Service.php in Apache Solr Search 6.3
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Drupal_Apache_Solr_Service.phpView source
<?php
/**
* Copyright (c) 2007-2009, Conduit Internet Technologies, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of Conduit Internet Technologies, Inc. nor the names of
* its contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @copyright Copyright 2007-2009 Conduit Internet Technologies, Inc. (http://conduit-it.com)
* @license New BSD (http://solr-php-client.googlecode.com/svn/trunk/COPYING)
* @version $Id: Service.php 22 2009-11-09 22:46:54Z donovan.jimenez $
*
* @package Apache
* @subpackage Solr
* @author Donovan Jimenez <djimenez@conduit-it.com>
*/
/**
* Additional code Copyright (c) 2008-2011 by Robert Douglass, James McKinney,
* Jacob Singh, Alejandro Garza, Peter Wolanin, and additional contributors.
*
* 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 as the file LICENSE.txt; if not, please see
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*/
/**
* Starting point for the Solr API. Represents a Solr server resource and has
* methods for pinging, adding, deleting, committing, optimizing and searching.
*/
class DrupalApacheSolrService implements DrupalApacheSolrServiceInterface {
/**
* How NamedLists should be formatted in the output. This specifically effects facet counts. Valid values
* are 'map' (default) or 'flat'.
*
*/
const NAMED_LIST_FORMAT = 'map';
/**
* Servlet mappings
*/
const PING_SERVLET = 'admin/ping';
const UPDATE_SERVLET = 'update';
const SEARCH_SERVLET = 'select';
const LUKE_SERVLET = 'admin/luke';
const SYSTEM_SERVLET = 'admin/system';
const STATS_SERVLET = 'admin/stats.jsp';
const STATS_SERVLET_4 = 'admin/mbeans?wt=xml&stats=true';
/**
* Server url
*
* @var array
*/
protected $parsed_url;
/**
* Constructed servlet full path URLs
*
* @var string
*/
protected $update_url;
/**
* Default HTTP timeout when one is not specified (initialized to default_socket_timeout ini setting)
*
* var float
*/
protected $_defaultTimeout;
protected $env_id;
protected $luke;
protected $stats;
protected $system_info;
/**
* Flag that denotes whether to use soft commits for Solr 4.x, defaults to FALSE.
*
* @var bool
*/
protected $soft_commit = FALSE;
/**
* Call the /admin/ping servlet, to test the connection to the server.
*
* @param $timeout
* maximum time to wait for ping in seconds, -1 for unlimited (default 2).
* @return
* (float) seconds taken to ping the server, FALSE if timeout occurs.
*/
public function ping($timeout = 2) {
$start = microtime(TRUE);
if ($timeout <= 0.0) {
$timeout = -1;
}
$pingUrl = $this
->_constructUrl(self::PING_SERVLET);
// Attempt a HEAD request to the solr ping url.
$options = array(
'method' => 'HEAD',
'timeout' => $timeout,
);
$response = $this
->_makeHttpRequest($pingUrl, $options);
if ($response->code == 200) {
// Add 0.1 ms to the ping time so we never return 0.0.
return microtime(TRUE) - $start + 0.0001;
}
else {
return FALSE;
}
}
/**
* Flags whether to use soft commits for Solr 4.x.
*
* @param bool $soft_commit
* Whether or not to use soft commits for Solr 4.x.
*/
public function setSoftCommit($soft_commit) {
$this->soft_commit = (bool) $soft_commit;
}
/**
* Returns the flag that denotes whether to use soft commits for Solr 4.x.
*
* @return bool
* Whether to use soft commits for Solr 4.x.
*/
public function getSoftCommit() {
return $this->soft_commit;
}
/**
* Call the /admin/system servlet
*
* @return
* (array) With all the system info
*/
protected function setSystemInfo() {
$url = $this
->_constructUrl(self::SYSTEM_SERVLET, array(
'wt' => 'json',
));
if ($this->env_id) {
$this->system_info_cid = $this->env_id . ":system:" . $this
->drupal_apachesolr_hash_base64($url);
$cache = cache_get($this->system_info_cid, 'cache_apachesolr');
if (isset($cache->data)) {
$this->system_info = json_decode($cache->data);
}
}
// Second pass to populate the cache if necessary.
if (empty($this->system_info)) {
$response = $this
->_sendRawGet($url);
$this->system_info = json_decode($response->data);
if ($this->env_id) {
cache_set($this->system_info_cid, $response->data, 'cache_apachesolr');
}
}
}
/**
* Get information about the Solr Core.
*
* @return
* (string) system info encoded in json
*/
public function getSystemInfo() {
if (!isset($this->system_info)) {
$this
->setSystemInfo();
}
return $this->system_info;
}
/**
* Sets $this->luke with the meta-data about the index from admin/luke.
*/
protected function setLuke($num_terms = 0) {
if (empty($this->luke[$num_terms])) {
$params = array(
'numTerms' => "{$num_terms}",
'wt' => 'json',
'json.nl' => self::NAMED_LIST_FORMAT,
);
$url = $this
->_constructUrl(self::LUKE_SERVLET, $params);
if ($this->env_id) {
$cid = $this->env_id . ":luke:" . $this
->drupal_apachesolr_hash_base64($url);
$cache = cache_get($cid, 'cache_apachesolr');
if (isset($cache->data)) {
$this->luke = $cache->data;
}
}
}
// Second pass to populate the cache if necessary.
if (empty($this->luke[$num_terms])) {
$this->luke[$num_terms] = $this
->_sendRawGet($url);
if ($this->env_id) {
cache_set($cid, $this->luke, 'cache_apachesolr');
}
}
}
/**
* Get just the field meta-data about the index.
*/
public function getFields($num_terms = 0) {
return $this
->getLuke($num_terms)->fields;
}
/**
* Get meta-data about the index.
*/
public function getLuke($num_terms = 0) {
if (!isset($this->luke[$num_terms])) {
$this
->setLuke($num_terms);
}
return $this->luke[$num_terms];
}
public function getSolrVersion() {
$system_info = $this
->getSystemInfo();
// Get our solr version number
if (isset($system_info->lucene->{'solr-spec-version'})) {
return $system_info->lucene->{'solr-spec-version'}[0];
}
return 0;
}
/**
* Sets $this->stats with the information about the Solr Core form
*/
protected function setStats() {
$data = $this
->getLuke();
$solr_version = $this
->getSolrVersion();
// Only try to get stats if we have connected to the index.
if (empty($this->stats) && isset($data->index->numDocs)) {
if ($solr_version >= 4) {
$url = $this
->_constructUrl(self::STATS_SERVLET_4);
}
else {
$url = $this
->_constructUrl(self::STATS_SERVLET);
}
if ($this->env_id) {
$this->stats_cid = $this->env_id . ":stats:" . $this
->drupal_apachesolr_hash_base64($url);
$cache = cache_get($this->stats_cid, 'cache_apachesolr');
if (isset($cache->data)) {
$this->stats = simplexml_load_string($cache->data);
}
}
// Second pass to populate the cache if necessary.
if (empty($this->stats)) {
$response = $this
->_sendRawGet($url);
$this->stats = simplexml_load_string($response->data);
if ($this->env_id) {
cache_set($this->stats_cid, $response->data, 'cache_apachesolr');
}
}
}
}
/**
* Get information about the Solr Core.
*
* Returns a Simple XMl document
*/
public function getStats() {
if (!isset($this->stats)) {
$this
->setStats();
}
return $this->stats;
}
/**
* Get summary information about the Solr Core.
*/
public function getStatsSummary() {
$stats = $this
->getStats();
$solr_version = $this
->getSolrVersion();
$summary = array(
'@pending_docs' => '',
'@autocommit_time_seconds' => '',
'@autocommit_time' => '',
'@deletes_by_id' => '',
'@deletes_by_query' => '',
'@deletes_total' => '',
'@schema_version' => '',
'@core_name' => '',
'@index_size' => '',
);
if (!empty($stats)) {
if ($solr_version <= 3) {
$docs_pending_xpath = $stats
->xpath('//stat[@name="docsPending"]');
$summary['@pending_docs'] = (int) trim(current($docs_pending_xpath));
$max_time_xpath = $stats
->xpath('//stat[@name="autocommit maxTime"]');
$max_time = (int) trim(current($max_time_xpath));
// Convert to seconds.
$summary['@autocommit_time_seconds'] = $max_time / 1000;
$summary['@autocommit_time'] = format_interval($max_time / 1000);
$deletes_id_xpath = $stats
->xpath('//stat[@name="deletesById"]');
$summary['@deletes_by_id'] = (int) trim(current($deletes_id_xpath));
$deletes_query_xpath = $stats
->xpath('//stat[@name="deletesByQuery"]');
$summary['@deletes_by_query'] = (int) trim(current($deletes_query_xpath));
$summary['@deletes_total'] = $summary['@deletes_by_id'] + $summary['@deletes_by_query'];
$schema = $stats
->xpath('/solr/schema[1]');
$summary['@schema_version'] = trim($schema[0]);
$core = $stats
->xpath('/solr/core[1]');
$summary['@core_name'] = trim($core[0]);
$size_xpath = $stats
->xpath('//stat[@name="indexSize"]');
$summary['@index_size'] = trim(current($size_xpath));
}
else {
$system_info = $this
->getSystemInfo();
$docs_pending_xpath = $stats
->xpath('//lst["stats"]/long[@name="docsPending"]');
$summary['@pending_docs'] = (int) trim(current($docs_pending_xpath));
$max_time_xpath = $stats
->xpath('//lst["stats"]/str[@name="autocommit maxTime"]');
$max_time = (int) trim(current($max_time_xpath));
// Convert to seconds.
$summary['@autocommit_time_seconds'] = $max_time / 1000;
$summary['@autocommit_time'] = format_interval($max_time / 1000);
$deletes_id_xpath = $stats
->xpath('//lst["stats"]/long[@name="deletesById"]');
$summary['@deletes_by_id'] = (int) trim(current($deletes_id_xpath));
$deletes_query_xpath = $stats
->xpath('//lst["stats"]/long[@name="deletesByQuery"]');
$summary['@deletes_by_query'] = (int) trim(current($deletes_query_xpath));
$summary['@deletes_total'] = $summary['@deletes_by_id'] + $summary['@deletes_by_query'];
$schema = $system_info->core->schema;
$summary['@schema_version'] = $schema;
$core = $stats
->xpath('//lst["core"]/str[@name="coreName"]');
$summary['@core_name'] = trim(current($core));
$size_xpath = $stats
->xpath('//lst["core"]/str[@name="indexSize"]');
$summary['@index_size'] = trim(current($size_xpath));
}
}
return $summary;
}
/**
* Clear cached Solr data.
*/
public function clearCache() {
// Don't clear cached data if the server is unavailable.
if (@$this
->ping()) {
$this
->_clearCache();
}
else {
throw new Exception('No Solr instance available when trying to clear the cache.');
}
}
protected function _clearCache() {
if ($this->env_id) {
cache_clear_all($this->env_id . ":stats:", 'cache_apachesolr', TRUE);
cache_clear_all($this->env_id . ":luke:", 'cache_apachesolr', TRUE);
}
$this->luke = array();
$this->stats = NULL;
}
/**
* Constructor
*
* @param $url
* The URL to the Solr server, possibly including a core name. E.g. http://localhost:8983/solr/
* or https://search.example.com/solr/core99/
* @param $env_id
* The machine name of a corresponding saved configuration used for loading
* data like which facets are enabled.
*/
public function __construct($url, $env_id = NULL) {
$this->env_id = $env_id;
$this
->setUrl($url);
// determine our default http timeout from ini settings
$this->_defaultTimeout = (int) ini_get('default_socket_timeout');
// double check we didn't get 0 for a timeout
if ($this->_defaultTimeout <= 0) {
$this->_defaultTimeout = 60;
}
}
function getId() {
return $this->env_id;
}
/**
* Check the reponse code and thow an exception if it's not 200.
*
* @param stdClass $response
* response object.
*
* @return
* response object
* @thows Exception
*/
protected function checkResponse($response) {
$code = (int) $response->code;
if ($code != 200) {
if ($code >= 400 && $code != 403 && $code != 404) {
// Add details, like Solr's exception message.
$response->status_message .= $response->data;
}
throw new Exception('"' . $code . '" Status: ' . $response->status_message);
}
return $response;
}
/**
* Make a request to a servlet (a path) that's not a standard path.
*
* @param string $servlet
* A path to be added to the base Solr path. e.g. 'extract/tika'
*
* @param array $params
* Any request parameters when constructing the URL.
*
* @param array $options
* @see drupal_http_request() $options.
*
* @return
* response object
*
* @thows Exception
*/
public function makeServletRequest($servlet, $params = array(), $options = array()) {
// Add default params.
$params += array(
'wt' => 'json',
'json.nl' => self::NAMED_LIST_FORMAT,
);
$url = $this
->_constructUrl($servlet, $params);
$response = $this
->_makeHttpRequest($url, $options);
return $this
->checkResponse($response);
}
/**
* Central method for making a GET operation against this Solr Server
*/
protected function _sendRawGet($url, $options = array()) {
$response = $this
->_makeHttpRequest($url, $options);
return $this
->checkResponse($response);
}
/**
* Central method for making a POST operation against this Solr Server
*/
protected function _sendRawPost($url, $options = array()) {
$options['method'] = 'POST';
// Normally we use POST to send XML documents.
if (!isset($options['headers']['Content-Type'])) {
$options['headers']['Content-Type'] = 'text/xml; charset=UTF-8';
}
$response = $this
->_makeHttpRequest($url, $options);
return $this
->checkResponse($response);
}
/**
* Central method for making the actual http request to the Solr Server
*
* This is just a wrapper around drupal_http_request().
*/
protected function _makeHttpRequest($url, array $options = array()) {
if (!isset($options['method']) || $options['method'] == 'GET' || $options['method'] == 'HEAD') {
// Make sure we are not sending a request body.
$options['data'] = NULL;
}
// Add our default params. This does not override our existing values
$options += array(
'headers' => array(),
'method' => 'GET',
'data' => NULL,
);
$result = drupal_http_request($url, $options['headers'], $options['method'], $options['data']);
if (!isset($result->code) || $result->code < 0) {
$result->code = 0;
$result->status_message = 'Request failed';
$result->protocol = 'HTTP/1.0';
}
// Additional information may be in the error property.
if (isset($result->error)) {
$result->status_message .= ': ' . check_plain($result->error);
}
if (!isset($result->data)) {
$result->data = '';
$result->response = NULL;
}
else {
$response = json_decode($result->data);
if (is_object($response)) {
foreach ($response as $key => $value) {
$result->{$key} = $value;
}
}
}
return $result;
}
/**
* Escape a value for special query characters such as ':', '(', ')', '*', '?', etc.
*
* NOTE: inside a phrase fewer characters need escaped, use {@link DrupalApacheSolrService::escapePhrase()} instead
*
* @param string $value
* @return string
*/
public static function escape($value) {
//list taken from http://lucene.apache.org/java/docs/queryparsersyntax.html#Escaping%20Special%20Characters
$pattern = '/(\\+|-|&&|\\|\\||!|\\(|\\)|\\{|}|\\[|]|\\^|"|~|\\*|\\?|:|\\\\)/';
$replace = '\\\\$1';
return preg_replace($pattern, $replace, $value);
}
/**
* Escape a value meant to be contained in a phrase for special query characters
*
* @param string $value
* @return string
*/
public static function escapePhrase($value) {
$pattern = '/("|\\\\)/';
$replace = '\\\\$1';
return preg_replace($pattern, $replace, $value);
}
/**
* Convenience function for creating phrase syntax from a value
*
* @param string $value
* @return string
*/
public static function phrase($value) {
return '"' . self::escapePhrase($value) . '"';
}
/**
* Return a valid http URL given this server's host, port and path and a provided servlet name
*
* @param $servlet
* A string path to a Solr request handler.
* @param $params
* @param $parsed_url
* A url to use instead of the stored one.
*
* @return string
*/
protected function _constructUrl($servlet, $params = array(), $added_query_string = NULL) {
// PHP's built in http_build_query() doesn't give us the format Solr wants.
$query_string = $this
->httpBuildQuery($params);
if ($query_string) {
$query_string = '?' . $query_string;
if ($added_query_string) {
$query_string = $query_string . '&' . $added_query_string;
}
}
elseif ($added_query_string) {
$query_string = '?' . $added_query_string;
}
$url = $this->parsed_url;
return $url['scheme'] . $url['user'] . $url['pass'] . $url['host'] . $url['port'] . $url['path'] . $servlet . $query_string;
}
/**
* Get the Solr url
*
* @return string
*/
public function getUrl() {
return $this
->_constructUrl('');
}
/**
* Set the Solr url.
*
* @param $url
*
* @return $this
*/
public function setUrl($url) {
$parsed_url = parse_url($url);
if (!isset($parsed_url['scheme'])) {
$parsed_url['scheme'] = 'http';
}
$parsed_url['scheme'] .= '://';
if (!isset($parsed_url['user'])) {
$parsed_url['user'] = '';
}
else {
$parsed_url['host'] = '@' . $parsed_url['host'];
}
$parsed_url['pass'] = isset($parsed_url['pass']) ? ':' . $parsed_url['pass'] : '';
$parsed_url['port'] = isset($parsed_url['port']) ? ':' . $parsed_url['port'] : '';
if (isset($parsed_url['path'])) {
// Make sure the path has a single leading/trailing slash.
$parsed_url['path'] = '/' . ltrim($parsed_url['path'], '/');
$parsed_url['path'] = rtrim($parsed_url['path'], '/') . '/';
}
else {
$parsed_url['path'] = '/';
}
// For now we ignore query and fragment.
$this->parsed_url = $parsed_url;
// Force the update url to be rebuilt.
unset($this->update_url);
return $this;
}
/**
* Raw update Method. Takes a raw post body and sends it to the update service. Post body
* should be a complete and well formed xml document.
*
* @param string $rawPost
* @param float $timeout Maximum expected duration (in seconds)
*
* @return response object
*
* @throws Exception If an error occurs during the service call
*/
public function update($rawPost, $timeout = FALSE) {
// @todo: throw exception if updates are disabled.
if (empty($this->update_url)) {
// Store the URL in an instance variable since many updates may be sent
// via a single instance of this class.
$this->update_url = $this
->_constructUrl(self::UPDATE_SERVLET, array(
'wt' => 'json',
));
}
$options['data'] = $rawPost;
if ($timeout) {
$options['timeout'] = $timeout;
}
return $this
->_sendRawPost($this->update_url, $options);
}
/**
* Add an array of Solr Documents to the index all at once
*
* @param array $documents Should be an array of ApacheSolrDocument instances
* @param boolean $allowDups
* @param boolean $overwritePending
* @param boolean $overwriteCommitted
*
* @return response objecte
*
* @throws Exception If an error occurs during the service call
*/
public function addDocuments($documents, $overwrite = NULL, $commitWithin = NULL) {
$attr = '';
if (isset($overwrite)) {
$attr .= ' overwrite="' . empty($overwrite) ? 'false"' : 'true"';
}
if (isset($commitWithin)) {
$attr .= ' commitWithin="' . intval($commitWithin) . '"';
}
$rawPost = "<add{$attr}>";
foreach ($documents as $document) {
if (is_object($document) && $document instanceof ApacheSolrDocument) {
$rawPost .= ApacheSolrDocument::documentToXml($document);
}
}
$rawPost .= '</add>';
return $this
->update($rawPost);
}
/**
* Send a commit command. Will be synchronous unless both wait parameters are set to false.
*
* @param boolean $optimize Defaults to true
* optimizes the index files. Only valid for solr versions <= 3
* @param boolean $waitFlush
* block until index changes are flushed to disk. Only valid for solr versions <= 3
* @param boolean $waitSearcher
* block until a new searcher is opened and registered as the main query searcher, making the changes visible.
* @param float $timeout
* Maximum expected duration of the commit operation on the server (otherwise, will throw a communication exception)
*
* @return response object
*
* @throws Exception If an error occurs during the service call
*/
public function commit($optimize = TRUE, $waitFlush = TRUE, $waitSearcher = TRUE, $timeout = 3600) {
$optimizeValue = $optimize ? 'true' : 'false';
$flushValue = $waitFlush ? 'true' : 'false';
$searcherValue = $waitSearcher ? 'true' : 'false';
$softCommit = $this->soft_commit ? 'true' : 'false';
$solr_version = $this
->getSolrVersion();
if ($solr_version <= 3) {
$rawPost = '<commit waitSearcher="' . $searcherValue . '" waitFlush="' . $flushValue . '" optimize="' . $optimizeValue . '" />';
}
else {
$rawPost = '<commit waitSearcher="' . $searcherValue . '" softCommit="' . $softCommit . '" />';
}
$response = $this
->update($rawPost, $timeout);
$this
->_clearCache();
return $response;
}
/**
* Create a delete document based on document ID
*
* @param string $id Expected to be utf-8 encoded
* @param float $timeout Maximum expected duration of the delete operation on the server (otherwise, will throw a communication exception)
*
* @return response object
*
* @throws Exception If an error occurs during the service call
*/
public function deleteById($id, $timeout = 3600) {
return $this
->deleteByMultipleIds(array(
$id,
), $timeout);
}
/**
* Create and post a delete document based on multiple document IDs.
*
* @param array $ids Expected to be utf-8 encoded strings
* @param float $timeout Maximum expected duration of the delete operation on the server (otherwise, will throw a communication exception)
*
* @return response object
*
* @throws Exception If an error occurs during the service call
*/
public function deleteByMultipleIds($ids, $timeout = 3600) {
$rawPost = '<delete>';
foreach ($ids as $id) {
$rawPost .= '<id>' . htmlspecialchars($id, ENT_NOQUOTES, 'UTF-8') . '</id>';
}
$rawPost .= '</delete>';
return $this
->update($rawPost, $timeout);
}
/**
* Create a delete document based on a query and submit it
*
* @param string $rawQuery Expected to be utf-8 encoded
* @param float $timeout Maximum expected duration of the delete operation on the server (otherwise, will throw a communication exception)
* @return stdClass response object
*
* @throws Exception If an error occurs during the service call
*/
public function deleteByQuery($rawQuery, $timeout = 3600) {
$rawPost = '<delete><query>' . htmlspecialchars($rawQuery, ENT_NOQUOTES, 'UTF-8') . '</query></delete>';
return $this
->update($rawPost, $timeout);
}
/**
* Send an optimize command. Will be synchronous unless both wait parameters are set
* to false.
*
* @param boolean $waitFlush
* block until index changes are flushed to disk Removed in Solr 4.0
* @param boolean $waitSearcher
* block until a new searcher is opened and registered as the main query searcher, making the changes visible.
* @param float $timeout
* Maximum expected duration of the commit operation on the server (otherwise, will throw a communication exception)
*
* @return response object
*
* @throws Exception If an error occurs during the service call
*/
public function optimize($waitFlush = TRUE, $waitSearcher = TRUE, $timeout = 3600) {
$flushValue = $waitFlush ? 'true' : 'false';
$searcherValue = $waitSearcher ? 'true' : 'false';
$softCommit = $this->soft_commit ? 'true' : 'false';
$solr_version = $this
->getSolrVersion();
if ($solr_version <= 3) {
$rawPost = '<optimize waitSearcher="' . $searcherValue . '" waitFlush="' . $flushValue . '" />';
}
else {
$rawPost = '<optimize waitSearcher="' . $searcherValue . '" softCommit="' . $softCommit . '" />';
}
return $this
->update($rawPost, $timeout);
}
/**
* Like PHP's built in http_build_query(), but uses rawurlencode() and no [] for repeated params.
*/
protected function httpBuildQuery(array $query, $parent = '') {
$params = array();
foreach ($query as $key => $value) {
$key = $parent ? $parent : rawurlencode($key);
// Recurse into children.
if (is_array($value)) {
$params[] = $this
->httpBuildQuery($value, $key);
}
elseif (!isset($value)) {
$params[] = $key;
}
else {
$params[] = $key . '=' . rawurlencode($value);
}
}
return implode('&', $params);
}
/**
* Simple Search interface
*
* @param string $query The raw query string
* @param array $params key / value pairs for other query parameters (see Solr documentation), use arrays for parameter keys used more than once (e.g. facet.field)
*
* @return response object
*
* @throws Exception If an error occurs during the service call
*/
public function search($query = '', array $params = array(), $method = 'GET') {
// Always use JSON. See http://code.google.com/p/solr-php-client/issues/detail?id=6#c1 for reasoning
$params['wt'] = 'json';
// Additional default params.
$params += array(
'json.nl' => self::NAMED_LIST_FORMAT,
);
if ($query) {
$params['q'] = $query;
}
// PHP's built in http_build_query() doesn't give us the format Solr wants.
$queryString = $this
->httpBuildQuery($params);
// Check string length of the query string, change method to POST
$len = strlen($queryString);
// Fetch our threshold to find out when to flip to POST
$max_len = apachesolr_environment_variable_get($this->env_id, 'apachesolr_search_post_threshold', 3600);
// if longer than $max_len (default 3600) characters
// we should switch to POST (a typical server handles 4096 max).
// If this class is used independently (without environments), we switch automatically to POST at an
// limit of 1800 chars.
if ($len > 1800 && (empty($this->env_id) || $len > $max_len)) {
$method = 'POST';
}
if ($method == 'GET') {
$searchUrl = $this
->_constructUrl(self::SEARCH_SERVLET, array(), $queryString);
return $this
->_sendRawGet($searchUrl);
}
else {
if ($method == 'POST') {
$searchUrl = $this
->_constructUrl(self::SEARCH_SERVLET);
$options['data'] = $queryString;
$options['headers']['Content-Type'] = 'application/x-www-form-urlencoded; charset=UTF-8';
return $this
->_sendRawPost($searchUrl, $options);
}
else {
throw new Exception("Unsupported method '{$method}' for search(), use GET or POST");
}
}
}
private function drupal_apachesolr_hash_base64($data) {
$hash = base64_encode(hash('sha256', $data, TRUE));
// Modify the hash so it's safe to use in URLs.
return strtr($hash, array(
'+' => '-',
'/' => '_',
'=' => '',
));
}
}Classes
Name |
Description |
|---|---|
| DrupalApacheSolrService | Starting point for the Solr API. Represents a Solr server resource and has methods for pinging, adding, deleting, committing, optimizing and searching. |