Drupal modules for browsing and managing Fedora-based digital repositories.
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<?php
// $Id$
module_load_include('inc', 'islandora_workflow_client', 'process');
class xslt extends Process {
protected function process($pid, $parameters) {
$required_params = array('dest_dsid', 'dsid');
$missing_params = array();
foreach ($required_params as $param) {
if (!isset($parameters[$param])) {
$missing_params[]=$param;
}
}
if (count($missing_params) > 0) {
$this->setMessage(t('Missing parameter(s) "%params" for xslt process on "%pid"', array('%params' => join(',', $missing_params), '%pid' => $pid)));
return FALSE;
}
if (!isset($parameters['xslt']) && !isset($parameters['xslt_file'])) {
$this->setMessage(t('Must include either "xslt_file" or "xslt" parameter to specify which template to apply on "%pid"', array('%pid' => $pid)));
return FALSE;
}
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
$xsltDom = NULL;
if (isset($parameters['xslt'])) {
list($template_pid, $template_dsid) = explode('/', $parameters['xslt']);
$template_item = new fedora_item($template_pid);
$dslist = $template_item->get_datastreams_list_as_array();
if (!isset($dslist[$template_dsid])) {
$this->setMessage(t('Datastream "%dsid" for template "%template" could not be found for xslt process on "%pid"', array('%template' => $parameters['xslt'], '%dsid' => $template_dsid, '%pid' => $pid)));
return FALSE;
}
$xsltDom = DOMDocument::loadXML($template_item->get_datastream_dissemination($template_dsid));
}
else {
$xsltDom = new DOMDocument();
$xsltDom->load(drupal_get_path('module', 'islandora_workflow_client') .'/xsl/'. trim($parameters['xslt_file']));
}
$item = new fedora_item($pid);
$dslist = $item->get_datastreams_list_as_array();
if (!isset($dslist[$parameters['dsid']])) {
$this->setMessage(t('Datastream "%dsid" could not be found for xslt process on "%pid"', array('%dsid' => $parameters['dsid'], '%pid' => $pid)));
return FALSE;
}
$modsDom = DOMDocument::loadXML($item->get_datastream_dissemination($parameters['dsid']));
$proc = new XSLTProcessor();
$proc->importStylesheet($xsltDom);
$dc = $proc->transformToXML($modsDom);
if (isset($dslist[$parameters['dest_dsid']])) {
$item->modify_datastream_by_value( $dc, $parameters['dest_dsid'], isset($parameters['dest_label']) ? $parameters['dest_label'] : $dslist[$parameters['dest_dsid']]['label'], 'text/xml',false, 'Modified by workflow process xslt.');
}
else {
$item->add_datastream_from_string( $dc, $parameters['dest_dsid'], isset($parameters['dest_label']) ? $parameters['dest_label'] : NULL, 'text/xml', 'X','Added by workflow process xslt.');
}
}
}