* @access private
*/
private $name;
- /**
+
+ /**
* Mountpoint of the Dataset
*
* @var string $mountPoint
private $mountPoint;
/**
- * List of properties assigned to the Dataset
+ * Array with properties assigned to the Dataset
*
* @var array $properties
* @access private
// Operations
/**
- * Constructor
+ * Constructor. If the Dataset already exists in the system the object will be updated with all
+ * associated properties from commandline.
*
* @param string $name Name of the new Dataset
- * @param array $properties An array of properties (strings) in the form <key>=<value> to set when creating the Dataset
- * @throws OMVModuleZFSException
- *
+ * @return void
+ * @access public
*/
- public function __construct($name, array $properties = null) {
- $cmd = "zfs create ";
- if (isset($properties)) {
- foreach ($properties as $property) {
- $cmd .= "-o " . $property . " ";
- }
- }
- $cmd .= $name . " 2>&1";
- OMVUtil::exec($cmd,$out,$res);
- if ($res) {
- throw new OMVModuleZFSException(implode("\n", $out));
- }
- unset($res);
+ public function __construct($name) {
$this->name = $name;
- if (isset($properties)) {
- $this->properties = $properties;
- foreach ($properties as $property) {
- if (preg_match('/^mountpoint\=(.*)$/', $property, $res)) {
- $this->mountPoint = $res[1];
- continue;
- }
+ $qname = preg_quote($name, '/');
+ $cmd = "zfs list -H";
+ $this->exec($cmd, $out, $res);
+ foreach ($out as $line) {
+ if (preg_match('/^' . $qname . '\t.*$/', $line)) {
+ $this->updateAllProperties();
+ $this->mountPoint = $this->properties["mountpoint"]["value"];
+ continue;
}
- } else {
- $this->properties = array();
- $this->mountPoint = "/" . $name;
}
}
}
/**
- * Get an array of properties associated with the Dataset
+ * Get a single property value associated with the Dataset
+ *
+ * @param string $property Name of the property to fetch
+ * @return array The returned array key 0=property value and key 1=property source.
+ * @access public
+ */
+ public function getProperty($property) {
+ return $this->properties["$property"];
+ }
+
+ /**
+ * Get an associative array of all properties associated with the Dataset.
+ *
+ * @return array $properties Each entry is an array where key 0=property value and key
+ * 1=property source.
*
- * @return array $properties
* @access public
*/
public function getProperties() {
/**
* Sets a number of Dataset properties. If a property is already set it will be updated with the new value.
*
- * @param array $properties An array of strings in format <key>=<value>
+ * @param array $properties An associative array with properties to set
* @return void
* @access public
*/
public function setProperties($properties) {
- foreach ($properties as $newproperty) {
- $cmd = "zfs set " . $newproperty . " " . $this->name;
- OMVUtil::exec($cmd,$out,$res);
- if ($res) {
- throw new OMVModuleZFSException(implode("\n", $out));
- }
- $tmp = explode("=", $newproperty);
- $newpropertyk = $tmp[0];
- $found = false;
- for ($i=0; $i<count($this->properties); $i++) {
- $tmp = explode("=", $this->properties[$i]);
- $oldpropertyk = $tmp[0];
- if (strcmp($newpropertyk, $oldpropertyk) == 0) {
- $this->properties[$i] = $newproperty;
- $found = true;
- continue;
- }
- }
- if (!$found) {
- array_push($this->properties, $newproperty);
- }
+ foreach ($properties as $newpropertyk => $newpropertyv) {
+ $cmd = "zfs set " . $newpropertyk . "=" . $newpropertyv . " " . $this->name;
+ $this->exec($cmd,$out,$res);
+ $this->updateProperty($newpropertyk);
}
}
+ /**
+ * Get all Dataset 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]);
+ }
+ }
+
+ /**
+ * Get single Datset property from commandline and update object property attribute
+ *
+ * @param string $property Name of the property to update
+ * @return void
+ * @access private
+ */
+ private function updateProperty($property) {
+ $cmd = "zfs get -H " . $property . " " . $this->name;
+ $this->exec($cmd,$out,$res);
+ $tmpary = preg_split('/\t+/', $out[0]);
+ $this->properties["$tmpary[1]"] = array("value" => $tmpary[2], "source" => $tmpary[3]);
+ }
+
+ /**
+ * Craete a Dataset on commandline. Optionally provide a number of properties to set.
+ *
+ * @param array $properties Properties to set when creating the dataset.
+ * @return void
+ * @access public
+ */
+ public function create(array $properties = null) {
+ $cmd = "zfs create -p " . $this->name . " 2>&1";
+ $this->exec($cmd,$out,$res);
+ $this->updateAllProperties();
+ $this->setProperties($properties);
+ $this->mountPoint = $this->properties["mountpoint"]["value"];
+ }
+
+
/**
* Destroy the Dataset.
*
+ * @return void
+ * @access public
*/
public function destroy() {
$cmd = "zfs destroy " . $this->name;
- OMVUtil::exec($cmd,$out,$res);
- if ($res == 1) {
+ $this->exec($cmd,$out,$res);
+ }
+
+ /**
+ * Renames a Dataset
+ *
+ * @param string $newname New name of the Dataset
+ * @return void
+ * @access public
+ */
+ public function rename($newname) {
+ $cmd = "zfs rename -p " . $this->name . " " . $newname . " 2>&1";
+ $this->exec($cmd,$out,$res);
+ $this->name = $newname;
+ }
+
+ /**
+ * Clears a previously set proporty and specifies that it should be
+ * inherited from it's parent.
+ *
+ * @param string $property Name of the property to inherit.
+ * @return void
+ * @access public
+ */
+ public function inherit($property) {
+ $cmd = "zfs inherit " . $property . " " . $this->name . " 2>&1";
+ $this->exec($cmd,$out,$res);
+ $this->updateProperty($property);
+ }
+
+ /**
+ * Upgrades the Dataset to latest filesystem version
+ *
+ * @return void
+ * @access public
+ */
+ public function upgrade() {
+ $cmd = "zfs upgrade " . $this->name . " 2>&1";
+ $this->exec($cmd,$out,$res);
+ }
+
+ /**
+ * Mount the Dataset
+ *
+ * @return void
+ * @access public
+ */
+ public function mount() {
+ $cmd = "zfs mount " . $this->name . " 2>&1";
+ $this->exec($cmd,$out,$res);
+ $this->updateProperty("mounted");
+ }
+
+ /**
+ * Unmount the Dataset
+ *
+ * @return void
+ * @access public
+ */
+ public function unmount() {
+ $cmd = "zfs unmount " . $this->name . " 2>&1";
+ $this->exec($cmd,$out,$res);
+ $this->updateProperty("mounted");
+ }
+
+
+ /**
+ * 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;
}
}
projects / omvzfs.git / blobdiff