1 files changed, 52 insertions, 0 deletions
diff --git a/fuel/deploy/dea.py b/fuel/deploy/dea.py
new file mode 100644
index 0000000..0ab215d
--- /dev/null
+++ b/fuel/deploy/dea.py
@@ -0,0 +1,52 @@
+import yaml
+
+class DeploymentEnvironmentAdapter(object):
+    def __init__(self):
+        self.dea_struct = None
+        self.blade_ids = {}
+        self.blades = {}
+        self.shelf_ids = []
+
+    def parse_yaml(self, yaml_path):
+        with open(yaml_path) as yaml_file:
+            self.dea_struct = yaml.load(yaml_file)
+        self.collect_shelf_and_blade_info()
+
+    def get_no_of_blades(self):
+        no_of_blades = 0
+        for shelf in self.dea_struct['shelf']:
+            no_of_blades += len(shelf['blade'])
+        return no_of_blades
+
+    def get_server_type(self):
+        return self.dea_struct['server_type']
+
+    def get_environment_name(self):
+        return self.dea_struct['name']
+
+    def get_shelf_ids(self):
+        return self.shelf_ids
+
+    def get_blade_ids(self, shelf_id):
+        return self.blade_ids[shelf_id]
+
+    def collect_shelf_and_blade_info(self):
+        self.blade_ids = {}
+        self.blades = {}
+        self.shelf_ids = []
+        for shelf in self.dea_struct['shelf']:
+             self.shelf_ids.append(shelf['id'])
+             blade_ids = self.blade_ids[shelf['id']] = []
+             blades = self.blades[shelf['id']] = {}
+             for blade in shelf['blade']:
+                 blade_ids.append(blade['id'])
+                 blades[blade['id']] = blade
+
+    def is_controller(self, shelf_id, blade_id):
+        blade = self.blades[shelf_id][blade_id]
+        return (True if 'role' in blade and blade['role'] == 'controller'
+                else False)
+
+    def is_compute_host(self, shelf_id, blade_id):
+        blade = self.blades[shelf_id][blade_id]
+        return True if 'role' not in blade else False
+\ No newline at end of file