silverstripe-fulltextsearch/code/solr/SolrService.php

<?php

Solr::include_client_api();

/**
 * The API for accessing a specific core of a Solr server. Exactly the same as Apache_Solr_Service for now.
 */
class SolrService_Core extends Apache_Solr_Service {
}

/**
 * The API for accessing the primary Solr installation, which includes both SolrService_Core,
 * plus extra methods for interrogating, creating, reloading and getting SolrService_Core instances
 * for Solr cores.
 */
class SolrService extends SolrService_Core {
	private static $core_class = 'SolrService_Core';

	/**
	 * Handle encoding the GET parameters and making the HTTP call to execute a core command
	 */
	protected function coreCommand($command, $core, $params=array()) {
		$command = strtoupper($command);

		$params = array_merge($params, array('action' => $command, 'wt' => 'json'));
		$params[$command == 'CREATE' ? 'name' : 'core'] = $core;

		return $this->_sendRawGet($this->_constructUrl('admin/cores', $params));
	}

	/**
	 * Is the passed core active?
	 * @param $core string - The name of the core
	 * @return boolean - True if that core exists & is active
	 */
	public function coreIsActive($core) {
		$result = $this->coreCommand('STATUS', $core);
		return isset($result->status->$core->uptime);
	}

	/**
	 * Create a new core
	 * @param $core string - The name of the core
	 * @param $instancedir string - The base path of the core on the server
	 * @param $config string - The filename of solrconfig.xml on the server. Default is $instancedir/solrconfig.xml
	 * @param $schema string - The filename of schema.xml on the server. Default is $instancedir/schema.xml
	 * @param $datadir string - The path to store data for this core on the server. Default depends on solrconfig.xml
	 * @return Apache_Solr_Response
	 */
	public function coreCreate($core, $instancedir, $config=null, $schema=null, $datadir=null) {
		$args = array('instanceDir' => $instancedir);
		if ($config) $args['config'] = $config;
		if ($schema) $args['schema'] = $schema;
		if ($datadir) $args['dataDir'] = $datadir;

		return $this->coreCommand('CREATE', $core, $args);
	}

	/**
	 * Reload a core
	 * @param $core string - The name of the core
	 * @return Apache_Solr_Response
	 */
	public function coreReload($core) {
		return $this->coreCommand('RELOAD', $core);
	}

	/**
	 * Create a new Solr3Service_Core instance for the passed core
	 * @param $core string - The name of the core
	 * @return Solr3Service_Core
	 */
	public function serviceForCore($core) {
		$klass = Config::inst()->get(get_called_class(), 'core_class');
		return new $klass($this->_host, $this->_port, $this->_path.$core, $this->_httpTransport);
	}
}