. */ include_once 'phing/filters/BaseParamFilterReader.php'; include_once 'phing/filters/ChainableReader.php'; /** * Applies Xinclude parsing to incoming text. * * Uses PHP DOM XML support * * @author Bill Karwin * @version $Revision: 1.16 $ * @see FilterReader * @package phing.filters */ class XincludeFilter extends BaseParamFilterReader implements ChainableReader { private $basedir = null; public function setBasedir(PhingFile $dir) { $this->basedir = $dir; } public function getBasedir() { return $this->basedir; } /** * Reads stream, applies XSLT and returns resulting stream. * @return string transformed buffer. * @throws BuildException - if XSLT support missing, if error in xslt processing */ function read($len = null) { if (!class_exists('DomDocument')) { throw new BuildException("Could not find the DomDocument class. Make sure PHP has been compiled/configured to support DOM XML."); } if ($this->processed === true) { return -1; // EOF } // Read XML $_xml = null; while ( ($data = $this->in->read($len)) !== -1 ) $_xml .= $data; if ($_xml === null ) { // EOF? return -1; } if (empty($_xml)) { $this->log("XML file is empty!", PROJECT_MSG_WARN); return ''; } $this->log("Transforming XML " . $this->in->getResource() . " using Xinclude ", PROJECT_MSG_VERBOSE); $out = ''; try { $out = $this->process($_xml); $this->processed = true; } catch (IOException $e) { throw new BuildException($e); } return $out; } /** * Try to process the Xinclude transformation * * @param string XML to process. * * @throws BuildException On errors */ protected function process($xml) { if ($this->basedir) { $cwd = getcwd(); chdir($this->basedir); } $xmlDom = new DomDocument(); $xmlDom->loadXML($xml); $xmlDom->xinclude(); if ($this->basedir) { chdir($cwd); } return $xmlDom->saveXML(); } /** * Creates a new XincludeFilter using the passed in * Reader for instantiation. * * @param Reader A Reader object providing the underlying stream. * Must not be null. * * @return Reader A new filter based on this configuration, but filtering * the specified reader */ function chain(Reader $reader) { $newFilter = new XincludeFilter($reader); $newFilter->setProject($this->getProject()); $newFilter->setBasedir($this->getBasedir()); return $newFilter; } } ?>