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 exif extends Process {
protected function process($pid, $parameters) {
$required_params = array('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 exif process on "%pid"', array('%params' => join(',', $missing_params), '%pid' => $pid)));
return FALSE;
}
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
module_load_include('inc', 'fedora_repository', 'ObjectHelper');
$item = new fedora_item($pid);
$dslist = $item->get_datastreams_list_as_array();
if (!isset($dslist[$parameters['dsid']])) {
$this->setMessage(t('Datastream "%dsid" could not be found for exif process on "%pid"', array('%dsid' => $parameters['dsid'], '%pid' => $pid)));
return FALSE;
}
$ds = $dslist[$parameters['dsid']];
$file = '/tmp/'. $ds['label'];
$dest_ds = isset($parameters['dest_ds']) ? $parameters['dest_ds'] : 'EXIF';
$objectHelper = new ObjectHelper();
$objectHelper->makeObject($pid, $parameters['dsid'], FALSE, NULL, $file);
if (!file_exists($file)) {
$this->setMessage('couldnt get datastream '. $parameters['dsid'] .' as '. $file);
return FALSE;
}
$system = getenv('System');
$returnValue=TRUE;
$output=array();
$command = '/usr/local/exif/exiftool -X '. $file;
exec($command, $output, $returnValue);
if ($returnValue == '0') {
if (isset($dslist[$dest_ds])) {
$item->purge_datastream($dest_ds);
}
$ret = $item->add_datastream_from_string(join("\n",$output), $dest_ds, 'EXIF_Technical_Metadata.xml' , 'text/xml', 'X','Added by workflow process EXIF.');
@unlink($file);
@unlink($file . $file_suffix);
if (!$ret) {
$this->setMessage(t('Unable to add datastream "%dsid" to "%pid".', array('%dsid' => $dest_ds, '%pid' => $pid)));
return FALSE;
}
return TRUE;
}
}
}