Added database users discovery. Added function to query current status of db users. Updated Pyora.xml template with the required discovery rule and item prototype

Author: mvazquez

pyora.py

@@ -454,9 +454,21 @@ def fra_use(self):
                 for i in res:
                         print i[0]
 
-        def locked_users(self):
-               '''Query the locked users on the instance'''
-               sql = "SELECT username FROM dba_users WHERE account_status != 'OPEN'"
+        def show_users(self):
+               '''Query the list of users on the instance'''
+               sql = "SELECT username FROM dba_users ORDER BY 1"
+               self.cur.execute(sql)
+               res = self.cur.fetchall()
+               key = ['{#DBUSER}']
+               lst = []
+               for i in res:
+                       d=dict(zip(key,i))
+                       lst.append(d)
+               print json.dumps({'data': lst})
+
+        def user_status(self,dbuser):
+               '''Determines whether a user is locked or not'''
+               sql = "SELECT account_status FROM dba_users WHERE username='{0}'".format(dbuser)
                self.cur.execute(sql)
                res = self.cur.fetchall()
                for i in res: