From fdc12bd65027ecf28a78734b3046f20e5f90893f Mon Sep 17 00:00:00 2001
From: Yong Sheng Gong <gongysh@cn.ibm.com>
Date: Sun, 12 Aug 2012 07:33:10 +0800
Subject: [PATCH] add ext list and show commands.

Change-Id: I3bdf1a3b066ee12572468b8d7abee96eb07f9257
---
 quantumclient/quantum/v2_0/extension.py | 95 +++++++++++++++++++++++++
 quantumclient/shell.py                  |  4 ++
 quantumclient/v2_0/client.py            | 12 ++++
 3 files changed, 111 insertions(+)
 create mode 100644 quantumclient/quantum/v2_0/extension.py

diff --git a/quantumclient/quantum/v2_0/extension.py b/quantumclient/quantum/v2_0/extension.py
new file mode 100644
index 000000000..00fa1fba7
--- /dev/null
+++ b/quantumclient/quantum/v2_0/extension.py
@@ -0,0 +1,95 @@
+# Copyright 2012 OpenStack LLC.
+# All Rights Reserved
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+#
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+import logging
+
+from cliff import lister
+from cliff import show
+
+from quantumclient.common import utils
+from quantumclient.quantum.v2_0 import QuantumCommand
+
+
+class ListExt(QuantumCommand, lister.Lister):
+    """List all exts."""
+
+    api = 'network'
+    resource = 'extension'
+    log = logging.getLogger(__name__ + '.ListExt')
+    _formatters = None
+
+    def get_parser(self, prog_name):
+        parser = super(ListExt, self).get_parser(prog_name)
+        return parser
+
+    def get_data(self, parsed_args):
+        self.log.debug('get_data(%s)' % parsed_args)
+        quantum_client = self.get_client()
+        search_opts = {}
+        quantum_client.format = parsed_args.request_format
+        obj_lister = getattr(quantum_client,
+                             "list_%ss" % self.resource)
+        data = obj_lister(**search_opts)
+        info = []
+        collection = self.resource + "s"
+        if collection in data:
+            info = data[collection]
+        _columns = len(info) > 0 and sorted(info[0].keys()) or []
+        return (_columns, (utils.get_item_properties(s, _columns)
+                for s in info))
+
+
+class ShowExt(QuantumCommand, show.ShowOne):
+    """Show information of a given resource
+
+    """
+    api = 'network'
+    resource = "extension"
+    log = logging.getLogger(__name__ + '.ShowExt')
+
+    def get_parser(self, prog_name):
+        parser = super(ShowExt, self).get_parser(prog_name)
+        parser.add_argument(
+            'ext_alias', metavar='ext_alias',
+            help='the extension alias')
+        return parser
+
+    def get_data(self, parsed_args):
+        self.log.debug('get_data(%s)' % parsed_args)
+        quantum_client = self.get_client()
+        quantum_client.format = parsed_args.request_format
+        params = {}
+        obj_shower = getattr(quantum_client,
+                             "show_%s" % self.resource)
+        data = obj_shower(parsed_args.ext_alias, **params)
+        if self.resource in data:
+            for k, v in data[self.resource].iteritems():
+                if isinstance(v, list):
+                    value = ""
+                    for _item in v:
+                        if value:
+                            value += "\n"
+                        if isinstance(_item, dict):
+                            value += utils.dumps(_item)
+                        else:
+                            value += str(_item)
+                    data[self.resource][k] = value
+                elif v is None:
+                    data[self.resource][k] = ''
+            return zip(*sorted(data[self.resource].iteritems()))
+        else:
+            return None
diff --git a/quantumclient/shell.py b/quantumclient/shell.py
index a80784014..1790e81c2 100644
--- a/quantumclient/shell.py
+++ b/quantumclient/shell.py
@@ -91,6 +91,10 @@ COMMAND_V2 = {
         'quantumclient.quantum.v2_0.quota.DeleteQuota'),
     'quota-update': utils.import_class(
         'quantumclient.quantum.v2_0.quota.UpdateQuota'),
+    'ext-list': utils.import_class(
+        'quantumclient.quantum.v2_0.extension.ListExt'),
+    'ext-show': utils.import_class(
+        'quantumclient.quantum.v2_0.extension.ShowExt'),
 }
 
 COMMANDS = {'2.0': COMMAND_V2}
diff --git a/quantumclient/v2_0/client.py b/quantumclient/v2_0/client.py
index 8cc78d211..23766daf2 100644
--- a/quantumclient/v2_0/client.py
+++ b/quantumclient/v2_0/client.py
@@ -156,6 +156,8 @@ class Client(object):
     subnet_path = "/subnets/%s"
     quotas_path = "/quotas"
     quota_path = "/quotas/%s"
+    exts_path = "/extensions"
+    ext_path = "/extensions/%s"
 
     @APIParamsCall
     def get_quotas_tenant(self, **_params):
@@ -183,6 +185,16 @@ class Client(object):
         """Delete the specified tenant's quota values."""
         return self.delete(self.quota_path % (tenant_id))
 
+    @APIParamsCall
+    def list_extensions(self, **_params):
+        """Fetch a list of all exts on server side."""
+        return self.get(self.exts_path, params=_params)
+
+    @APIParamsCall
+    def show_extension(self, ext_alias, **_params):
+        """Fetch a list of all exts on server side."""
+        return self.get(self.ext_path % ext_alias, params=_params)
+
     @APIParamsCall
     def list_ports(self, **_params):
         """