silverstripe-fulltextsearch/code/solr/Solr4Service.php

<?php

class Solr4Service_Core extends SolrService_Core {

	/**
	 * Replace underlying commit function to remove waitFlush in 4.0+, since it's been deprecated and 4.4 throws errors
	 * if you pass it
	 */
	public function commit($expungeDeletes = false, $waitFlush = null, $waitSearcher = true, $timeout = 3600) {
		if ($waitFlush) {
			user_error('waitFlush must be false when using Solr 4.0+' . E_USER_ERROR);
		}

		$expungeValue = $expungeDeletes ? 'true' : 'false';
		$searcherValue = $waitSearcher ? 'true' : 'false';

		$rawPost = '<commit expungeDeletes="' . $expungeValue . '" waitSearcher="' . $searcherValue . '" />';
		return $this->_sendRawPost($this->_updateUrl, $rawPost, $timeout);
	}
	
	/**
	 * @inheritdoc	
	 * @see Solr4Service_Core::addDocuments
	 */
	public function addDocument(Apache_Solr_Document $document, $allowDups = false,
		$overwritePending = true, $overwriteCommitted = true, $commitWithin = 0
	) {
		return $this->addDocuments(array($document), $allowDups, $overwritePending, $overwriteCommitted, $commitWithin);
	}

	/**
	 * Solr 4.0 compat http://wiki.apache.org/solr/UpdateXmlMessages#Optional_attributes_for_.22add.22
	 * Remove allowDups, overwritePending and overwriteComitted
	 */
	public function addDocuments($documents, $allowDups = false, $overwritePending = true,
		$overwriteCommitted = true, $commitWithin = 0
	) {
		$overwriteVal = $allowDups ? 'false' : 'true';
		$commitWithin = (int) $commitWithin;
		$commitWithinString = $commitWithin > 0 ? " commitWithin=\"{$commitWithin}\"" : '';

		$rawPost = "<add overwrite=\"{$overwriteVal}\"{$commitWithinString}>";
		foreach ($documents as $document) {
			if ($document instanceof Apache_Solr_Document) {
				$rawPost .= $this->_documentToXmlFragment($document);
			}
		}
		$rawPost .= '</add>';

		return $this->add($rawPost);
	}
}

class Solr4Service extends SolrService {
	private static $core_class = 'Solr4Service_Core';
}