Scripts to download files from google storage based on sha1 sums

third_party/gsutil/boto/ec2/snapshot.py

+# Copyright (c) 2006-2010 Mitch Garnaat http://garnaat.org/
+# Copyright (c) 2010, Eucalyptus Systems, Inc.
+#
+# 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.
+
+"""
+Represents an EC2 Elastic Block Store Snapshot
+"""
+from boto.ec2.ec2object import TaggedEC2Object
+from boto.ec2.zone import Zone
+
+class Snapshot(TaggedEC2Object):
+    
+    AttrName = 'createVolumePermission'
+    
+    def __init__(self, connection=None):
+        TaggedEC2Object.__init__(self, connection)
+        self.id = None
+        self.volume_id = None
+        self.status = None
+        self.progress = None
+        self.start_time = None
+        self.owner_id = None
+        self.owner_alias = None
+        self.volume_size = None
+        self.description = None
+
+    def __repr__(self):
+        return 'Snapshot:%s' % self.id
+
+    def endElement(self, name, value, connection):
+        if name == 'snapshotId':
+            self.id = value
+        elif name == 'volumeId':
+            self.volume_id = value
+        elif name == 'status':
+            self.status = value
+        elif name == 'startTime':
+            self.start_time = value
+        elif name == 'ownerId':
+            self.owner_id = value
+        elif name == 'ownerAlias':
+            self.owner_alias = value
+        elif name == 'volumeSize':
+            try:
+                self.volume_size = int(value)
+            except:
+                self.volume_size = value
+        elif name == 'description':
+            self.description = value
+        else:
+            setattr(self, name, value)
+
+    def _update(self, updated):
+        self.progress = updated.progress
+        self.status = updated.status
+
+    def update(self, validate=False):
+        """
+        Update the data associated with this snapshot by querying EC2.
+
+        :type validate: bool
+        :param validate: By default, if EC2 returns no data about the
+                         snapshot the update method returns quietly.  If
+                         the validate param is True, however, it will
+                         raise a ValueError exception if no data is
+                         returned from EC2.
+        """
+        rs = self.connection.get_all_snapshots([self.id])
+        if len(rs) > 0:
+            self._update(rs[0])
+        elif validate:
+            raise ValueError('%s is not a valid Snapshot ID' % self.id)
+        return self.progress
+    
+    def delete(self):
+        return self.connection.delete_snapshot(self.id)
+
+    def get_permissions(self):
+        attrs = self.connection.get_snapshot_attribute(self.id, self.AttrName)
+        return attrs.attrs
+
+    def share(self, user_ids=None, groups=None):
+        return self.connection.modify_snapshot_attribute(self.id,
+                                                         self.AttrName,
+                                                         'add',
+                                                         user_ids,
+                                                         groups)
+
+    def unshare(self, user_ids=None, groups=None):
+        return self.connection.modify_snapshot_attribute(self.id,
+                                                         self.AttrName,
+                                                         'remove',
+                                                         user_ids,
+                                                         groups)
+
+    def reset_permissions(self):
+        return self.connection.reset_snapshot_attribute(self.id,
+                                                        self.AttrName)
+
+    def create_volume(self, zone, size=None, volume_type=None, iops=None):
+        """
+        Create a new EBS Volume from this Snapshot
+
+        :type zone: string or :class:`boto.ec2.zone.Zone`
+        :param zone: The availability zone in which the Volume will be created.
+
+        :type size: int
+        :param size: The size of the new volume, in GiB. (optional). Defaults to
+            the size of the snapshot.
+
+        :type volume_type: string
+        :param volume_type: The type of the volume. (optional).  Valid
+            values are: standard | io1.
+
+        :type iops: int
+        :param iops: The provisioned IOPs you want to associate with
+            this volume. (optional)
+        """
+        if isinstance(zone, Zone):
+            zone = zone.name
+        return self.connection.create_volume(size, zone, self.id, volume_type, iops)
+
+
+class SnapshotAttribute:
+
+    def __init__(self, parent=None):
+        self.snapshot_id = None
+        self.attrs = {}
+
+    def startElement(self, name, attrs, connection):
+        return None
+
+    def endElement(self, name, value, connection):
+        if name == 'createVolumePermission':
+            self.name = 'create_volume_permission'
+        elif name == 'group':
+            if 'groups' in self.attrs:
+                self.attrs['groups'].append(value)
+            else:
+                self.attrs['groups'] = [value]
+        elif name == 'userId':
+            if 'user_ids' in self.attrs:
+                self.attrs['user_ids'].append(value)
+            else:
+                self.attrs['user_ids'] = [value]
+        elif name == 'snapshotId':
+            self.snapshot_id = value
+        else:
+            setattr(self, name, value)
+
+
+