add 2 feature(create group, retrive users from group)

README.md

@@ -123,6 +123,10 @@ $iss = new IssueService(new ArrayConfiguration(
 ### User
 - [Get User Info](#get-user-info)
 
+### Group
+- [Create Group](#create-group)
+- [Get Users from group](#get-users-from-group)
+
 #### Get Project Info
 
 ```php
@@ -927,6 +931,65 @@ try {
 
 ```
 
+#### Create Group
+
+Create new group.
+
+```php
+<?php
+require 'vendor/autoload.php';
+
+use JiraRestApi\JiraException;
+use JiraRestApi\Group\GroupService;
+
+try {
+    $g = new Group();
+
+    $g->name = 'Test group for REST API';
+
+    $gs = new GroupService();
+
+    $ret = $gs->createGroup($g);
+	var_dump($user);
+} catch (JiraException $e) {
+	print("Error Occured! " . $e->getMessage());
+}
+
+```
+
+#### Get Users from group
+
+returns a paginated list of users who are members of the specified group and its subgroups.
+
+```php
+<?php
+require 'vendor/autoload.php';
+
+use JiraRestApi\JiraException;
+use JiraRestApi\Group\GroupService;
+
+try {
+   $queryParam = [
+        'groupname' => 'Test group for REST API',
+        'includeInactiveUsers' => true, // default false
+        'startAt' => 0,
+        'maxResults' => 50,
+    ];
+
+    $gs = new GroupService();
+
+    $ret = $gs->getMembers($queryParam);
+
+    // print all users in the group
+    foreach($ret->values as $user) {
+        print_r($user);
+    }
+} catch (JiraException $e) {
+	print("Error Occured! " . $e->getMessage());
+}
+
+```
+
 # License
 
 Apache V2 License

src/Group/Group.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace JiraRestApi\Group;
+use JiraRestApi\ClassSerialize;
+
+class GroupUser
+{
+    /**
+     * @var integer
+     */
+    public $size;
+
+    /** @var  array */
+    public $items;
+
+    /** @var  integer */
+    public $max_results;
+
+    /** @var  integer */
+    public $start_index;
+
+    /** @var  integer */
+    public $end_index;
+}
+
+/**
+ * Class Group
+ *
+ * @package JiraRestApi\Group
+ *
+ * @see https://docs.atlassian.com/jira/REST/server/#api/2/group
+ */
+class Group implements \JsonSerializable
+{
+    use ClassSerialize;
+
+    /**
+     * uri which was hit.
+     *
+     * @var string
+     */
+    public $self;
+
+    /**
+     * @var string
+     */
+    public $name;
+
+    /**
+     * @var GroupUser
+     */
+    public $users;
+
+    /**
+     * @var object
+     */
+    public $expand;
+
+    public function jsonSerialize()
+    {
+        return array_filter(get_object_vars($this));
+    }
+
+    public function setName($name) {
+        $this->name = $name;
+
+        return $this;
+    }
+
+}

src/Group/GroupSearchResult.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace JiraRestApi\Group;
+use JiraRestApi\ClassSerialize;
+
+/**
+ * Class GroupSearchResult
+ *
+ * @package JiraRestApi\Group
+ *
+ * @see https://docs.atlassian.com/jira/REST/server/#api/2/group
+ */
+class GroupSearchResult implements \JsonSerializable
+{
+    use ClassSerialize;
+
+    /**
+     * uri which was hit.
+     *
+     * @var string
+     */
+    public $self;
+
+    /**
+     * @var integer
+     */
+    public $maxResults;
+
+    /**
+     * @var integer
+     */
+    public $startAt;
+
+    /**
+     * @var integer
+     */
+    public $total;
+
+    /** @var  \JiraRestApi\User\User[] */
+    public $values;
+
+    public function jsonSerialize()
+    {
+        return array_filter(get_object_vars($this));
+    }
+}

src/Group/GroupService.php

@@ -0,0 +1,82 @@
+<?php
+
+namespace JiraRestApi\Group;
+
+/**
+ * Class to perform all groups related queries.
+ * @package JiraRestApi\Group
+ */
+class GroupService extends \JiraRestApi\JiraClient
+{
+    private $uri = '/group';
+
+    /**
+     * Function to get group.
+     *
+     * @param array $paramArray Possible values for $paramArray 'username', 'key'.
+     *   "Either the 'username' or the 'key' query parameters need to be provided".
+     *
+     * @return Group class
+     */
+    public function get($paramArray)
+    {
+        $queryParam = '?'.http_build_query($paramArray);
+
+        $ret = $this->exec($this->uri.$queryParam, null);
+
+        $this->log->addInfo("Result=\n".$ret);
+
+        return $this->json_mapper->map(
+                json_decode($ret), new User()
+        );
+    }
+
+    /**
+     * Get users from group
+     *
+     * @param $paramArray groupname, includeInactiveUsers, startAt, maxResults
+     * @return GroupSearchResult
+     * @throws \JiraRestApi\JiraException
+     * @throws \JsonMapper_Exception
+     */
+    public function getMembers($paramArray)
+    {
+        $queryParam = '?' . http_build_query($paramArray);
+
+        $ret = $this->exec($this->uri . '/member'.$queryParam, null);
+
+        $this->log->addInfo("Result=\n".$ret);
+
+        $userData = json_decode($ret);
+
+        $res = $this->json_mapper->map($userData, new GroupSearchResult());
+
+        return $res;
+    }
+
+    /**
+     * Creates a group by given group parameter
+     *
+     * @param $group \JiraRestApi\Group\Group
+     * @return array
+     * @throws \JiraRestApi\JiraException
+     * @throws \JsonMapper_Exception
+     */
+    public function createGroup($group)
+    {
+        $data = json_encode($group);
+
+        $ret = $this->exec($this->uri, $data);
+
+        $this->log->addInfo("Result=\n".$ret);
+
+        $groupData = json_decode($ret);
+        $groups = [];
+
+        $group = $this->json_mapper->map(
+            json_decode($ret), new Group()
+        );
+
+        return $group;
+    }
+}

tests/groupTest.php

@@ -0,0 +1,53 @@
+<?php
+
+use JiraRestApi\Dumper;
+use JiraRestApi\Group\Group;
+use JiraRestApi\Group\GroupService;
+use JiraRestApi\IssueLink\IssueLink;
+use JiraRestApi\IssueLink\IssueLinkService;
+use JiraRestApi\JiraException;
+
+class GroupTest extends PHPUnit_Framework_TestCase
+{
+    public function testCreateGroup()
+    {
+        $this->markTestSkipped();
+        try {
+            $g = new Group();
+
+            $g->name = 'Test group for REST API';
+
+            $gs = new GroupService();
+
+            $ret = $gs->createGroup($g);
+
+            Dumper::dump($ret);
+        } catch (JiraException $e) {
+            $this->assertTrue(false, 'testCreateGroup Failed : '.$e->getMessage());
+        }
+    }
+
+    public function testGetUsersFromGroup()
+    {
+        try {
+            $queryParam = [
+                'groupname' => 'Test group for REST API',
+                'includeInactiveUsers' => true, // default false
+                'startAt' => 0,
+                'maxResults' => 50,
+            ];
+
+            $gs = new GroupService();
+
+            $ret = $gs->getMembers($queryParam);
+
+            // print all users in the group
+            foreach($ret->values as $user) {
+                print_r($user);
+            }
+
+        } catch (JiraException $e) {
+            $this->assertTrue(false, 'testCreateGroup Failed : '.$e->getMessage());
+        }
+    }
+}