Fixed missing license headers

[osm/vim-emu.git] / src / emuvim / dcemulator / resourcemodel / __init__.py

diff --git a/src/emuvim/dcemulator/resourcemodel/__init__.py b/src/emuvim/dcemulator/resourcemodel/__init__.py
old mode 100644 (file)
new mode 100755 (executable)
index e35da25..869eb1d
--- a/src/emuvim/dcemulator/resourcemodel/__init__.py
+++ b/src/emuvim/dcemulator/resourcemodel/__init__.py
@@ -1,4 +1,31 @@
 """
+Copyright (c) 2015 SONATA-NFV and Paderborn University
+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.
+
+Neither the name of the SONATA-NFV, Paderborn University
+nor the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+This work has been performed in the framework of the SONATA project,
+funded by the European Commission under Grant number 671517 through
+the Horizon 2020 and 5G-PPP programmes. The authors would like to
+acknowledge the contributions of their colleagues of the SONATA
+partner consortium (www.sonata-nfv.eu).
+"""
+"""
 Base classes needed for resource models support.
 """
 
@@ -76,7 +103,7 @@ class BaseResourceModel(object):
         self._initDefaultFlavors()
         self.registrar = None  # pointer to registrar
         self.dcs = list()
-        self.allocated_compute_instances = dict()
+        self._allocated_compute_instances = dict()
         LOG.info("Resource model %r initialized" % self)
 
     def __repr__(self):
@@ -87,15 +114,15 @@ class BaseResourceModel(object):
         initialize some default flavours (naming/sizes inspired by OpenStack)
         """
         self.addFlavour(ResourceFlavor(
-            "tiny",  {"compute": 1, "memory": 32, "disk": 1}))
+            "tiny",  {"compute": 0.5, "memory": 32, "disk": 1}))
         self.addFlavour(ResourceFlavor(
-            "small",  {"compute": 4, "memory": 128, "disk": 20}))
+            "small",  {"compute": 1.0, "memory": 128, "disk": 20}))
         self.addFlavour(ResourceFlavor(
-            "medium",  {"compute": 8, "memory": 256, "disk": 40}))
+            "medium",  {"compute": 4.0, "memory": 256, "disk": 40}))
         self.addFlavour(ResourceFlavor(
-            "large",  {"compute": 16, "memory": 512, "disk": 80}))
+            "large",  {"compute": 8.0, "memory": 512, "disk": 80}))
         self.addFlavour(ResourceFlavor(
-            "xlarge",  {"compute": 32, "memory": 1024, "disk": 160}))
+            "xlarge",  {"compute": 16.0, "memory": 1024, "disk": 160}))
 
     def addFlavour(self, fl):
         """
@@ -107,23 +134,58 @@ class BaseResourceModel(object):
             raise Exception("Flavor with name %r already exists!" % fl.name)
         self._flavors[fl.name] = fl
 
-    def allocate(self, name, flavor_name):
+    def allocate(self, d):
         """
         This method has to be overwritten by a real resource model.
-        :param name: Name of the started compute instance.
-        :param flavor_name:  Name of the flavor to be allocated.
-        :return: 3-tuple: (CPU-fraction, Mem-limit, Disk-limit)
+        :param d: Container object
         """
-        LOG.warning("Allocating in BaseResourceModel: %r with flavor: %r" % (name, flavor_name))
-        self.allocated_compute_instances[name] = flavor_name
-        return -1.0, -1.0, -1.0  # return invalid values to indicate that this RM is a dummy
+        LOG.warning("Allocating in BaseResourceModel: %r with flavor: %r" % (d.name, d.flavor_name))
+        self._allocated_compute_instances[d.name] = d.flavor_name
 
-    def free(self, name):
+    def free(self, d):
         """
         This method has to be overwritten by a real resource model.
-        :param name: Name of the compute instance that is stopped.
-        :return: True/False
+        :param d: Container object
+        """
+        LOG.warning("Free in BaseResourceModel: %r" % d.name)
+        del self._allocated_compute_instances[d.name]
+
+    def get_state_dict(self):
+        """
+        Return the state of the resource model as simple dict.
+        Helper method for logging functionality.
+        :return:
+        """
+        return dict()
+
+    def write_allocation_log(self, d, path):
+        """
+        Helper to log RM info for experiments.
+        :param d: container
+        :param path: log path
+        :return:
         """
-        LOG.warning("Free in BaseResourceModel: %r" % name)
-        del self.allocated_compute_instances[name]
-        return True
+        self._write_log(d, path, "allocate")
+
+    def write_free_log(self, d, path):
+        """
+        Helper to log RM info for experiments.
+        :param d: container
+        :param path: log path
+        :return:
+        """
+        self._write_log(d, path, "free")
+
+    def _write_log(self, d, path, action):
+        """
+        Helper to log RM info for experiments.
+        :param d: container
+        :param path: log path
+        :param action: allocate or free
+        :return:
+        """
+        pass
+
+
+class NotEnoughResourcesAvailable(BaseException):
+    pass