Source Code for Module virtualization.state

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15   
16  from virtualization.constants import StateType 
17   
18  ############################################################################### 
19  # Classes 
20  ############################################################################### 
21   
22 -class State: 
23      """ 
24      This class represents the state of a virtual instance.  It provides 
25      abstraction to categorize the state into running, stopped, paused, or 
26      crashed. 
27      """ 
28   
29 -    def __init__(self, state_type): 
30          """ 
31          Create a new state.  If state_type is None, this state is assumed to be 
32          stopped.  If state_type is not None, it must be a StateType type. 
33          """ 
34          self.__state_type = state_type 
35   
36 -    def get_state_type(self): 
37          """ 
38          Returns the state type used to create this instance. 
39          """ 
40          return self.__state_type 
41   
42 -    def is_running(self): 
43          """ 
44          Returns true if this object represents a running state. 
45          """ 
46          return self.__state_type == StateType.NOSTATE or \ 
47                 self.__state_type == StateType.RUNNING or \ 
48                 self.__state_type == StateType.BLOCKED or \ 
49                 self.__state_type == StateType.SHUTDOWN 
50   
51 -    def is_paused(self): 
52          """ 
53          Returns true if this object represents a paused instance. 
54          """ 
55          return self.__state_type == StateType.PAUSED 
56   
57 -    def is_stopped(self): 
58          """ 
59          Returns true if this object represents a stopped instance. 
60          """ 
61          return self.__state_type == None or \ 
62                 self.__state_type == StateType.SHUTOFF 
63   
64 -    def is_crashed(self): 
65          """ 
66          Returns true if this object represents a crashed instance. 
67          """ 
68          return self.__state_type == StateType.CRASHED 
69