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third_party/gsutil/boto/boto/ec2/autoscale/group.py

Index: third_party/gsutil/boto/boto/ec2/autoscale/group.py
diff --git a/third_party/gsutil/boto/boto/ec2/autoscale/group.py b/third_party/gsutil/boto/boto/ec2/autoscale/group.py
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+# Copyright (c) 2009-2011 Reza Lotun http://reza.lotun.name/
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish, dis-
+# tribute, sublicense, and/or sell copies of the Software, and to permit
+# persons to whom the Software is furnished to do so, subject to the fol-
+# lowing conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
+# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+from boto.ec2.elb.listelement import ListElement
+from boto.resultset import ResultSet
+from boto.ec2.autoscale.launchconfig import LaunchConfiguration
+from boto.ec2.autoscale.request import Request
+from boto.ec2.autoscale.instance import Instance
+from boto.ec2.autoscale.tag import Tag
+
+
+class ProcessType(object):
+    def __init__(self, connection=None):
+        self.connection = connection
+        self.process_name = None
+
+    def __repr__(self):
+        return 'ProcessType(%s)' % self.process_name
+
+    def startElement(self, name, attrs, connection):
+        pass
+
+    def endElement(self, name, value, connection):
+        if name == 'ProcessName':
+            self.process_name = value
+
+
+class SuspendedProcess(object):
+    def __init__(self, connection=None):
+        self.connection = connection
+        self.process_name = None
+        self.reason = None
+
+    def __repr__(self):
+        return 'SuspendedProcess(%s, %s)' % (self.process_name, self.reason)
+
+    def startElement(self, name, attrs, connection):
+        pass
+
+    def endElement(self, name, value, connection):
+        if name == 'ProcessName':
+            self.process_name = value
+        elif name == 'SuspensionReason':
+            self.reason = value
+
+
+class EnabledMetric(object):
+    def __init__(self, connection=None, metric=None, granularity=None):
+        self.connection = connection
+        self.metric = metric
+        self.granularity = granularity
+
+    def __repr__(self):
+        return 'EnabledMetric(%s, %s)' % (self.metric, self.granularity)
+
+    def startElement(self, name, attrs, connection):
+        pass
+
+    def endElement(self, name, value, connection):
+        if name == 'Granularity':
+            self.granularity = value
+        elif name == 'Metric':
+            self.metric = value
+
+
+class TerminationPolicies(list):
+
+    def startElement(self, name, attrs, connection):
+        pass
+
+    def endElement(self, name, value, connection):
+        if name == 'member':
+            self.append(value)
+
+
+class AutoScalingGroup(object):
+    def __init__(self, connection=None, name=None,
+                 launch_config=None, availability_zones=None,
+                 load_balancers=None, default_cooldown=None,
+                 health_check_type=None, health_check_period=None,
+                 placement_group=None, vpc_zone_identifier=None,
+                 desired_capacity=None, min_size=None, max_size=None,
+                 tags=None, termination_policies=None, **kwargs):
+        """
+        Creates a new AutoScalingGroup with the specified name.
+
+        You must not have already used up your entire quota of
+        AutoScalingGroups in order for this call to be successful. Once the
+        creation request is completed, the AutoScalingGroup is ready to be
+        used in other calls.
+
+        :type name: str
+        :param name: Name of autoscaling group (required).
+
+        :type availability_zones: list
+        :param availability_zones: List of availability zones (required).
+
+        :type default_cooldown: int
+        :param default_cooldown: Number of seconds after a Scaling Activity
+            completes before any further scaling activities can start.
+
+        :type desired_capacity: int
+        :param desired_capacity: The desired capacity for the group.
+
+        :type health_check_period: str
+        :param health_check_period: Length of time in seconds after a new
+            EC2 instance comes into service that Auto Scaling starts
+            checking its health.
+
+        :type health_check_type: str
+        :param health_check_type: The service you want the health status from,
+            Amazon EC2 or Elastic Load Balancer.
+
+        :type launch_config_name: str or LaunchConfiguration
+        :param launch_config_name: Name of launch configuration (required).
+
+        :type load_balancers: list
+        :param load_balancers: List of load balancers.
+
+        :type max_size: int
+        :param max_size: Maximum size of group (required).
+
+        :type min_size: int
+        :param min_size: Minimum size of group (required).
+
+        :type placement_group: str
+        :param placement_group: Physical location of your cluster placement
+            group created in Amazon EC2.
+
+        :type vpc_zone_identifier: str
+        :param vpc_zone_identifier: The subnet identifier of the Virtual
+            Private Cloud.
+
+        :type termination_policies: list
+        :param termination_policies: A list of termination policies. Valid values
+            are: "OldestInstance", "NewestInstance", "OldestLaunchConfiguration",
+            "ClosestToNextInstanceHour", "Default".  If no value is specified,
+            the "Default" value is used.
+
+        :rtype: :class:`boto.ec2.autoscale.group.AutoScalingGroup`
+        :return: An autoscale group.
+        """
+        self.name = name or kwargs.get('group_name')   # backwards compat
+        self.connection = connection
+        self.min_size = int(min_size) if min_size is not None else None
+        self.max_size = int(max_size) if max_size is not None else None
+        self.created_time = None
+        # backwards compatibility
+        default_cooldown = default_cooldown or kwargs.get('cooldown')
+        if default_cooldown is not None:
+            default_cooldown = int(default_cooldown)
+        self.default_cooldown = default_cooldown
+        self.launch_config_name = launch_config
+        if launch_config and isinstance(launch_config, LaunchConfiguration):
+            self.launch_config_name = launch_config.name
+        self.desired_capacity = desired_capacity
+        lbs = load_balancers or []
+        self.load_balancers = ListElement(lbs)
+        zones = availability_zones or []
+        self.availability_zones = ListElement(zones)
+        self.health_check_period = health_check_period
+        self.health_check_type = health_check_type
+        self.placement_group = placement_group
+        self.autoscaling_group_arn = None
+        self.vpc_zone_identifier = vpc_zone_identifier
+        self.instances = None
+        self.tags = tags or None
+        termination_policies = termination_policies or []
+        self.termination_policies = ListElement(termination_policies)
+
+    # backwards compatible access to 'cooldown' param
+    def _get_cooldown(self):
+        return self.default_cooldown
+
+    def _set_cooldown(self, val):
+        self.default_cooldown = val
+
+    cooldown = property(_get_cooldown, _set_cooldown)
+
+    def __repr__(self):
+        return 'AutoScaleGroup<%s>' % self.name
+
+    def startElement(self, name, attrs, connection):
+        if name == 'Instances':
+            self.instances = ResultSet([('member', Instance)])
+            return self.instances
+        elif name == 'LoadBalancerNames':
+            return self.load_balancers
+        elif name == 'AvailabilityZones':
+            return self.availability_zones
+        elif name == 'EnabledMetrics':
+            self.enabled_metrics = ResultSet([('member', EnabledMetric)])
+            return self.enabled_metrics
+        elif name == 'SuspendedProcesses':
+            self.suspended_processes = ResultSet([('member', SuspendedProcess)])
+            return self.suspended_processes
+        elif name == 'Tags':
+            self.tags = ResultSet([('member', Tag)])
+            return self.tags
+        elif name == 'TerminationPolicies':
+            return self.termination_policies
+        else:
+            return
+
+    def endElement(self, name, value, connection):
+        if name == 'MinSize':
+            self.min_size = int(value)
+        elif name == 'AutoScalingGroupARN':
+            self.autoscaling_group_arn = value
+        elif name == 'CreatedTime':
+            self.created_time = value
+        elif name == 'DefaultCooldown':
+            self.default_cooldown = int(value)
+        elif name == 'LaunchConfigurationName':
+            self.launch_config_name = value
+        elif name == 'DesiredCapacity':
+            self.desired_capacity = int(value)
+        elif name == 'MaxSize':
+            self.max_size = int(value)
+        elif name == 'AutoScalingGroupName':
+            self.name = value
+        elif name == 'PlacementGroup':
+            self.placement_group = value
+        elif name == 'HealthCheckGracePeriod':
+            try:
+                self.health_check_period = int(value)
+            except ValueError:
+                self.health_check_period = None
+        elif name == 'HealthCheckType':
+            self.health_check_type = value
+        elif name == 'VPCZoneIdentifier':
+            self.vpc_zone_identifier = value
+        else:
+            setattr(self, name, value)
+
+    def set_capacity(self, capacity):
+        """
+        Set the desired capacity for the group.
+        """
+        params = {'AutoScalingGroupName': self.name,
+                  'DesiredCapacity': capacity}
+        req = self.connection.get_object('SetDesiredCapacity', params,
+                                         Request)
+        self.connection.last_request = req
+        return req
+
+    def update(self):
+        """
+        Sync local changes with AutoScaling group.
+        """
+        return self.connection._update_group('UpdateAutoScalingGroup', self)
+
+    def shutdown_instances(self):
+        """
+        Convenience method which shuts down all instances associated with
+        this group.
+        """
+        self.min_size = 0
+        self.max_size = 0
+        self.desired_capacity = 0
+        self.update()
+
+    def delete(self, force_delete=False):
+        """
+        Delete this auto-scaling group if no instances attached or no
+        scaling activities in progress.
+        """
+        return self.connection.delete_auto_scaling_group(self.name,
+                                                         force_delete)
+
+    def get_activities(self, activity_ids=None, max_records=50):
+        """
+        Get all activies for this group.
+        """
+        return self.connection.get_all_activities(self, activity_ids,
+                                                  max_records)
+
+    def put_notification_configuration(self, topic, notification_types):
+        """
+        Configures an Auto Scaling group to send notifications when
+        specified events take place.
+        """
+        return self.connection.put_notification_configuration(self,
+                                                              topic,
+                                                              notification_types)
+
+    def suspend_processes(self, scaling_processes=None):
+        """
+        Suspends Auto Scaling processes for an Auto Scaling group.
+        """
+        return self.connection.suspend_processes(self.name, scaling_processes)
+
+    def resume_processes(self, scaling_processes=None):
+        """
+        Resumes Auto Scaling processes for an Auto Scaling group.
+        """
+        return self.connection.resume_processes(self.name, scaling_processes)
+
+
+class AutoScalingGroupMetric(object):
+    def __init__(self, connection=None):
+
+        self.connection = connection
+        self.metric = None
+        self.granularity = None
+
+    def __repr__(self):
+        return 'AutoScalingGroupMetric:%s' % self.metric
+
+    def startElement(self, name, attrs, connection):
+        return
+
+    def endElement(self, name, value, connection):
+        if name == 'Metric':
+            self.metric = value
+        elif name == 'Granularity':
+            self.granularity = value
+        else:
+            setattr(self, name, value)