kytos-ng /
sdntrace
| Total Complexity | 4 |
| Total Lines | 44 |
| Duplicated Lines | 0 % |
| Coverage | 90% |
| Changes | 0 | ||
| 1 | """Module to create a singleton class to track all switches. After being |
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| 2 | loaded by the main napp, this class can be reached just using |
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| 3 | Switches().desired_method() |
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| 4 | |||
| 5 | For example: |
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| 6 | |||
| 7 | from switches import Switches |
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| 8 | |||
| 9 | list_of_switches = Switches().get_switches() |
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| 10 | switch_01 = Switches().get_switch("00:00:00:00:00:00:00:01") |
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| 11 | """ |
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| 12 | |||
| 13 | 1 | from napps.amlight.sdntrace.shared.singleton import Singleton |
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| 14 | |||
| 15 | |||
| 16 | 1 | class Switches(metaclass=Singleton): |
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| 17 | """This class is used to easy app development, decoupling |
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| 18 | modules from Kytos core. With a Singleton class for Switches, |
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| 19 | napps will not need to keep passing Kytos main class to get |
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| 20 | a list of switches. |
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| 21 | """ |
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| 22 | |||
| 23 | 1 | def __init__(self, switches): |
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| 24 | 1 | self._switches = switches |
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| 25 | |||
| 26 | 1 | def __len__(self): |
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| 27 | """Return the number of switches instantiated """ |
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| 28 | return len(self._switches) |
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| 29 | |||
| 30 | 1 | def get_switch(self, dpid): |
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| 31 | """Query the self.switches |
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| 32 | Args: |
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| 33 | dpid: datapath id 'str' |
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| 34 | |||
| 35 | Returns: |
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| 36 | a kytos.core.switch.Switch() object |
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| 37 | False if not found |
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| 38 | """ |
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| 39 | 1 | return self._switches.get(dpid, False) |
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| 40 | |||
| 41 | 1 | def get_switches(self): |
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| 42 | """Return all switches """ |
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| 43 | return self._switches.copy().values() |
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| 44 |
