1 files changed, 132 insertions, 0 deletions
diff --git a/nova/api/openstack/views/servers.py b/nova/api/openstack/views/servers.py
new file mode 100644
index 000000000..261acfed0
--- /dev/null
+++ b/nova/api/openstack/views/servers.py
@@ -0,0 +1,132 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2010-2011 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.
+
+import hashlib
+from nova.compute import power_state
+from nova.api.openstack import common
+from nova.api.openstack.views import addresses as addresses_view
+from nova.api.openstack.views import flavors as flavors_view
+from nova.api.openstack.views import images as images_view
+from nova import utils
+
+
+def get_view_builder(req):
+    '''
+    A factory method that returns the correct builder based on the version of
+    the api requested.
+    '''
+    version = common.get_api_version(req)
+    addresses_builder = addresses_view.get_view_builder(req)
+    if version == '1.1':
+        flavor_builder = flavors_view.get_view_builder(req)
+        image_builder = images_view.get_view_builder(req)
+        return ViewBuilder_1_1(addresses_builder, flavor_builder,
+                               image_builder)
+    else:
+        return ViewBuilder_1_0(addresses_builder)
+
+
+class ViewBuilder(object):
+    '''
+    Models a server response as a python dictionary.
+    Abstract methods: _build_image, _build_flavor
+    '''
+
+    def __init__(self, addresses_builder):
+        self.addresses_builder = addresses_builder
+
+    def build(self, inst, is_detail):
+        """
+        Coerces into dictionary format, mapping everything to
+        Rackspace-like attributes for return
+        """
+        if is_detail:
+            return self._build_detail(inst)
+        else:
+            return self._build_simple(inst)
+
+    def _build_simple(self, inst):
+            return dict(server=dict(id=inst['id'], name=inst['display_name']))
+
+    def _build_detail(self, inst):
+        power_mapping = {
+            None: 'build',
+            power_state.NOSTATE: 'build',
+            power_state.RUNNING: 'active',
+            power_state.BLOCKED: 'active',
+            power_state.SUSPENDED: 'suspended',
+            power_state.PAUSED: 'paused',
+            power_state.SHUTDOWN: 'active',
+            power_state.SHUTOFF: 'active',
+            power_state.CRASHED: 'error',
+            power_state.FAILED: 'error'}
+        inst_dict = {}
+
+        #mapped_keys = dict(status='state', imageId='image_id',
+        #    flavorId='instance_type', name='display_name', id='id')
+
+        mapped_keys = dict(status='state', name='display_name', id='id')
+
+        for k, v in mapped_keys.iteritems():
+            inst_dict[k] = inst[v]
+
+        inst_dict['status'] = power_mapping[inst_dict['status']]
+        inst_dict['addresses'] = self.addresses_builder.build(inst)
+
+        # Return the metadata as a dictionary
+        metadata = {}
+        for item in inst['metadata']:
+            metadata[item['key']] = item['value']
+        inst_dict['metadata'] = metadata
+
+        inst_dict['hostId'] = ''
+        if inst['host']:
+            inst_dict['hostId'] = hashlib.sha224(inst['host']).hexdigest()
+
+        self._build_image(inst_dict, inst)
+        self._build_flavor(inst_dict, inst)
+
+        return dict(server=inst_dict)
+
+    def _build_image(self, response, inst):
+        raise NotImplementedError()
+
+    def _build_flavor(self, response, inst):
+        raise NotImplementedError()
+
+
+class ViewBuilder_1_0(ViewBuilder):
+    def _build_image(self, response, inst):
+        response["imageId"] = inst["image_id"]
+
+    def _build_flavor(self, response, inst):
+        response["flavorId"] = inst["instance_type"]
+
+
+class ViewBuilder_1_1(ViewBuilder):
+    def __init__(self, addresses_builder, flavor_builder, image_builder):
+        ViewBuilder.__init__(self, addresses_builder)
+        self.flavor_builder = flavor_builder
+        self.image_builder = image_builder
+
+    def _build_image(self, response, inst):
+        image_id = inst["image_id"]
+        response["imageRef"] = self.image_builder.generate_href(image_id)
+
+    def _build_flavor(self, response, inst):
+        flavor_id = inst["instance_type"]
+        response["flavorRef"] = self.flavor_builder.generate_href(flavor_id)