Define constants for types of reboot job

Adds constants, instead of arbitrary strings, for specifying the type
of reboot job.

Change-Id: I4f404bdb158899b4d0f50f87a120a222f4bd5939

dracclient/client.py

@@ -439,8 +439,9 @@ class DRACClient(object):
             reboot=reboot,
             start_time=start_time)
 
-    def create_reboot_job(self,
+    def create_reboot_job(
-                          reboot_type='graceful_reboot_with_forced_shutdown'):
+            self,
+            reboot_type=constants.RebootJobType.reboot_forced_shutdown):
         """Creates a reboot job.
 
         :param reboot_type: type of reboot

dracclient/constants.py

@@ -50,3 +50,24 @@ class RebootRequired(object):
     @classmethod
     def all(cls):
         return [cls.true, cls.optional, cls.false]
+
+
+class RebootJobType(object):
+    """Enumeration of different reboot job types."""
+
+    power_cycle = 'power_cycle'
+    """Hard power off, power on cycle"""
+
+    graceful_reboot = 'graceful_reboot'
+    """OS level reboot and wait for OS shutdown"""
+
+    reboot_forced_shutdown = 'reboot_forced_shutdown'
+    """OS level reboot and force power cycle if OS does not shut
+    down
+    """
+
+    @classmethod
+    def all(cls):
+        return [cls.power_cycle,
+                cls.graceful_reboot,
+                cls.reboot_forced_shutdown]

dracclient/resources/job.py

@@ -14,6 +14,7 @@
 import collections
 import logging
 
+from dracclient import constants
 import dracclient.exceptions as exceptions
 from dracclient.resources import uris
 from dracclient import utils
@@ -27,9 +28,9 @@ JobTuple = collections.namedtuple(
      'percent_complete'])
 
 REBOOT_TYPES = {
-    'power_cycle': '1',
+    constants.RebootJobType.power_cycle: '1',
-    'graceful_reboot_without_forced_shutdown': '2',
+    constants.RebootJobType.graceful_reboot: '2',
-    'graceful_reboot_with_forced_shutdown': '3',
+    constants.RebootJobType.reboot_forced_shutdown: '3',
 }
 
 
@@ -168,8 +169,9 @@ class JobManagement(object):
 
         return self._get_job_id(doc)
 
-    def create_reboot_job(self,
+    def create_reboot_job(
-                          reboot_type='graceful_reboot_with_forced_shutdown'):
+            self,
+            reboot_type=constants.RebootJobType.reboot_forced_shutdown):
         """Creates a reboot job.
 
         :param reboot_type: type of reboot