Added create method and property helper methods to Snapshot class.

[omvzfs.git] / src / Dataset.php

diff --git a/src/Dataset.php b/src/Dataset.php
index 49ddfb2a466d487bd9056c90f6f9172ab2838988..e1611416a73d8fd00102d3f958881eeae2878118 100644 (file)
--- a/src/Dataset.php
+++ b/src/Dataset.php
@@ -1,5 +1,7 @@
 <?php
 require_once("Exception.php");
 <?php
 require_once("Exception.php");

+require_once("openmediavault/util.inc");
+require_once("Snapshot.php");

 
 /**
  * XXX detailed description
 
 /**
  * XXX detailed description


@@ -17,16 +19,8 @@ class OMVModuleZFSDataset {
      * @access private
      */
     private $name;
      * @access private
      */
     private $name;

-
-    /**
-     * Size of Dataset
-     *
-     * @var    int $size
-     * @access private
-     */
-    private $size;
-
-    /**
+       
+       /**

      * Mountpoint of the Dataset
      *
      * @var    string $mountPoint
      * Mountpoint of the Dataset
      *
      * @var    string $mountPoint


@@ -35,46 +29,51 @@ class OMVModuleZFSDataset {
     private $mountPoint;
 
     /**
     private $mountPoint;
 
     /**

-     * List of features assigned to the Dataset
+     * Array with properties assigned to the Dataset

      *
      *

-     * @var    array $features
+     * @var    array $properties

      * @access private
      */
      * @access private
      */

-    private $features;
+    private $properties;
+
+       /**
+        * Array with Snapshots associated to the Dataset
+        *
+        * @var         array $snapshots
+        * @access private
+        */
+       private $snapshots;

 
        // Associations
        // Operations
 
        /**
 
        // Associations
        // Operations
 
        /**

-        * Constructor
-        * 
-        * @param string $name Name of the new Dataset
-        * @param array $features An array of features to set when creating the Dataset
+        * 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
+        * @return void
+        * @access public

         */
         */

-       public function __construct($name, array $features = null) {
-               $cmd = "zfs create ";
-               if (isset($features)) {
-                       $cmd .= "-o " . implode(",", $features) . " ";
-               }
-               $cmd .= $name . " 2>&1";
-               exec($cmd,$out,$res);
-               if ($res == 1) {
-                       throw new OMVModuleZFSException(implode("\n", $out));
-               }
-               unset($res);
+       public function __construct($name) {

                $this->name = $name;
                $this->name = $name;

-               if (isset($features)) {
-                       $this->features = $features;
-                       foreach ($features as $feature) {
-                               if (preg_match('/^mountpoint\=(.*)$/', $feature, $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;
+                       }
+               }
+               $qname = preg_quote($name . "@", '/');
+               $cmd = "zfs list -H -t snapshot";
+               $this->exec($cmd, $out, $res);
+               foreach ($out as $line) {
+                       if (preg_match('/^(' . $qname . '[^\s]+)\t.*$/', $line, $res)) {
+                               $this->snapshots[] = new OMVModuleZFSSnapshot($res[1]);

                        }
                        }

-               } else {
-                       $this->features = array();
-                       $this->mountPoint = "/" . $name;

                }
        }
 
                }
        }
 


@@ -89,45 +88,200 @@ class OMVModuleZFSDataset {
        }
 
        /**
        }
 
        /**

-        * Get the size of the Dataset
+        * Get the mountpoint of the Dataset
+        *
+        * @return string $mountPoint
+        * @access public
+        */
+       public function getMountPoint() {
+               return $this->mountPoint;
+       }
+
+       /**
+        * Get all Snapshots associated with the Dataset

         *
         *

-        * @return int $size
+        * @return array $snapshots

         * @access public
         */
         * @access public
         */

-       public function getSize() {
-               return $this->size;
+       public function getSnapshots() {
+               return $this->snapshots;

        }
 
        }
 

+       /**
+        * 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 the mountpoint of the Dataset
+        * 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 string $mountPoint

         * @access public
         */
         * @access public
         */

-       public function getMountPoint() {
-               return $this->mountPoint;
+       public function getProperties() {
+               return $this->properties;
+       }
+
+       /**
+        * Sets a number of Dataset properties. If a property is already set it will be updated with the new value.
+        *
+        * @param  array $properties An associative array with properties to set
+        * @return void
+        * @access public
+        */
+       public function setProperties($properties) {
+               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;
+               $this->exec($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);

        }
 
        /**
        }
 
        /**

-        * Get an array of features associated with the Dataset
+        * Mount the Dataset

         *
         *

-        * @return array $features
+        * @return void

         * @access public
         */
         * @access public
         */

-       public function getFeatures() {
-               return $this->features;
+       public function mount() {
+               $cmd = "zfs mount " . $this->name . " 2>&1";
+               $this->exec($cmd,$out,$res);
+               $this->updateProperty("mounted");

        }
 
        /**
        }
 
        /**

-        * XXX
+        * Unmount the Dataset

         *
         *

-        * @param  array XXX
-        * @return void XXX
+        * @return void

         * @access public
         */
         * @access public
         */

-       public function setFeatures($list) {
-               trigger_error('Not Implemented!', E_USER_WARNING);
+       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;

        }
 
 }
        }
 
 }