<?php
+require_once("Exception.php");
+require_once("openmediavault/util.inc");
/**
* XXX detailed description
* @version XXX
* @copyright XXX
*/
-class Snapshot {
+class OMVModuleZFSSnapshot {
// Attributes
/**
- * XXX
+ * Name of the Snapshot
*
* @var string $name
* @access private
*/
- private $_name;
+ private $name;
/**
- * XXX
+ * Properties associated with the Snaphost
*
- * @var int $size
+ * @var array $properties
* @access private
*/
- private $_size;
-
- /**
- * XXX
- *
- * @var string $mountPoint
- * @access private
- */
- private $_mountPoint;
-
- /**
- * XXX
- *
- * @var list<Feature> $features
- * @access private
- */
- private $_features;
+ private $properties;
// Associations
// Operations
- /**
- * XXX
- *
- * @return string XXX
- * @access public
- */
- public function getName() {
- trigger_error('Not Implemented!', E_USER_WARNING);
- }
- /**
- * XXX
- *
- * @return int XXX
- * @access public
- */
- public function getSize() {
- trigger_error('Not Implemented!', E_USER_WARNING);
- }
+ /**
+ * Constructor. If the Snapshot already exists in the system the object will be updated with all
+ * associated properties from commandline.
+ *
+ * @param string $name Name of the new Snapshot
+ * @return void
+ * @access public
+ */
+ public function __construct($name) {
+ $this->name = $name;
+ $qname = preg_quote($name, '/');
+ $cmd = "zfs list -H -t snapshot";
+ $this->exec($cmd, $out, $res);
+ foreach ($out as $line) {
+ if (preg_match('/^' . $qname . '\t.*$/', $line)) {
+ $this->updateAllProperties();
+ continue;
+ }
+ }
+ }
- /**
- * XXX
- *
- * @return string XXX
- * @access public
- */
- public function getMountPoint() {
- trigger_error('Not Implemented!', E_USER_WARNING);
- }
+ /**
+ * Return name of the Snapshot
+ *
+ * @return string Nameof the Snapshot
+ * @access public
+ */
+ public function getName() {
+ return $this->name;
+ }
- /**
- * XXX
- *
- * @return list<Feature> XXX
- * @access public
- */
- public function getFeatures() {
- trigger_error('Not Implemented!', E_USER_WARNING);
- }
+ /**
+ * XXX
+ *
+ * @return list<Feature> XXX
+ * @access public
+ */
+ public function getFeatures() {
+ trigger_error('Not Implemented!', E_USER_WARNING);
+ }
- /**
- * XXX
- *
- * @param $list<Feature> XXX
- * @return void XXX
- * @access public
- */
- public function setFeatures($list<Feature>) {
- trigger_error('Not Implemented!', E_USER_WARNING);
- }
+ /**
+ * XXX
+ *
+ * @param $list<Feature> XXX
+ * @return void XXX
+ * @access public
+ */
+ public function setFeatures($list) {
+ trigger_error('Not Implemented!', E_USER_WARNING);
+ }
+
+ /**
+ * Get all Snapshot properties from commandline and update object properties attribute
+ *
+ * @return void
+ * @access private
+ */
+ private function updateAllProperties() {
+ $cmd = "zfs get -H all " . $this->name;
+ $this->exec($cmd,$out,$res);
+ unset($this->properties);
+ foreach ($out as $line) {
+ $tmpary = preg_split('/\t+/', $line);
+ $this->properties["$tmpary[1]"] = array("value" => $tmpary[2], "source" => $tmpary[3]);
+ }
+ }
+ /**
+ * Helper function to execute a command and throw an exception on error
+ * (requires stderr redirected to stdout for proper exception message).
+ *
+ * @param string $cmd Command to execute
+ * @param array &$out If provided will contain output in an array
+ * @param int &$res If provided will contain Exit status of the command
+ * @return string Last line of output when executing the command
+ * @throws OMVModuleZFSException
+ * @access private
+ */
+ private function exec($cmd, &$out = null, &$res = null) {
+ $tmp = OMVUtil::exec($cmd, $out, $res);
+ if ($res) {
+ throw new OMVModuleZFSException(implode("\n", $out));
+ }
+ return $tmp;
+ }
}
?>