Merge "Add NetworkAndCompute Lister and ShowOne classes"

1 files changed, 102 insertions, 0 deletions

diff --git a/openstackclient/network/common.py b/openstackclient/network/common.py
index c539dd05..cc343c3c 100644
--- a/openstackclient/network/common.py
+++ b/openstackclient/network/common.py
@@ -60,3 +60,105 @@ class NetworkAndComputeCommand(command.Command):
     def take_action_compute(self, client, parsed_args):
         """Override to do something useful."""
         pass
+
+
+@six.add_metaclass(abc.ABCMeta)
+class NetworkAndComputeLister(command.Lister):
+    """Network and Compute Lister
+
+    Lister class for commands that support implementation via
+    the network or compute endpoint. Such commands have different
+    implementations for take_action() and may even have different
+    arguments.
+    """
+
+    def take_action(self, parsed_args):
+        if self.app.client_manager.is_network_endpoint_enabled():
+            return self.take_action_network(self.app.client_manager.network,
+                                            parsed_args)
+        else:
+            return self.take_action_compute(self.app.client_manager.compute,
+                                            parsed_args)
+
+    def get_parser(self, prog_name):
+        self.log.debug('get_parser(%s)', prog_name)
+        parser = super(NetworkAndComputeLister, self).get_parser(prog_name)
+        parser = self.update_parser_common(parser)
+        self.log.debug('common parser: %s', parser)
+        if self.app.client_manager.is_network_endpoint_enabled():
+            return self.update_parser_network(parser)
+        else:
+            return self.update_parser_compute(parser)
+
+    def update_parser_common(self, parser):
+        """Default is no updates to parser."""
+        return parser
+
+    def update_parser_network(self, parser):
+        """Default is no updates to parser."""
+        return parser
+
+    def update_parser_compute(self, parser):
+        """Default is no updates to parser."""
+        return parser
+
+    @abc.abstractmethod
+    def take_action_network(self, client, parsed_args):
+        """Override to do something useful."""
+        pass
+
+    @abc.abstractmethod
+    def take_action_compute(self, client, parsed_args):
+        """Override to do something useful."""
+        pass
+
+
+@six.add_metaclass(abc.ABCMeta)
+class NetworkAndComputeShowOne(command.ShowOne):
+    """Network and Compute ShowOne
+
+    ShowOne class for commands that support implementation via
+    the network or compute endpoint. Such commands have different
+    implementations for take_action() and may even have different
+    arguments.
+    """
+
+    def take_action(self, parsed_args):
+        if self.app.client_manager.is_network_endpoint_enabled():
+            return self.take_action_network(self.app.client_manager.network,
+                                            parsed_args)
+        else:
+            return self.take_action_compute(self.app.client_manager.compute,
+                                            parsed_args)
+
+    def get_parser(self, prog_name):
+        self.log.debug('get_parser(%s)', prog_name)
+        parser = super(NetworkAndComputeShowOne, self).get_parser(prog_name)
+        parser = self.update_parser_common(parser)
+        self.log.debug('common parser: %s', parser)
+        if self.app.client_manager.is_network_endpoint_enabled():
+            return self.update_parser_network(parser)
+        else:
+            return self.update_parser_compute(parser)
+
+    def update_parser_common(self, parser):
+        """Default is no updates to parser."""
+        return parser
+
+    def update_parser_network(self, parser):
+        """Default is no updates to parser."""
+        return parser
+
+    def update_parser_compute(self, parser):
+        """Default is no updates to parser."""
+        return parser
+
+    @abc.abstractmethod
+    def take_action_network(self, client, parsed_args):
+        """Override to do something useful."""
+        pass
+
+    @abc.abstractmethod
+    def take_action_compute(self, client, parsed_args):
+        """Override to do something useful."""
+        pass