[catapult] - Copy Telemetry's gsutilz over to third_party.

third_party/gsutil/third_party/boto/boto/ec2/ec2object.py

Index: third_party/gsutil/third_party/boto/boto/ec2/ec2object.py
diff --git a/third_party/gsutil/third_party/boto/boto/ec2/ec2object.py b/third_party/gsutil/third_party/boto/boto/ec2/ec2object.py
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+# 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 Object
+"""
+from boto.ec2.tag import TagSet
+
+
+class EC2Object(object):
+
+    def __init__(self, connection=None):
+        self.connection = connection
+        if self.connection and hasattr(self.connection, 'region'):
+            self.region = connection.region
+        else:
+            self.region = None
+
+    def startElement(self, name, attrs, connection):
+        return None
+
+    def endElement(self, name, value, connection):
+        setattr(self, name, value)
+
+
+class TaggedEC2Object(EC2Object):
+    """
+    Any EC2 resource that can be tagged should be represented
+    by a Python object that subclasses this class.  This class
+    has the mechanism in place to handle the tagSet element in
+    the Describe* responses.  If tags are found, it will create
+    a TagSet object and allow it to parse and collect the tags
+    into a dict that is stored in the "tags" attribute of the
+    object.
+    """
+
+    def __init__(self, connection=None):
+        super(TaggedEC2Object, self).__init__(connection)
+        self.tags = TagSet()
+
+    def startElement(self, name, attrs, connection):
+        if name == 'tagSet':
+            return self.tags
+        else:
+            return None
+
+    def add_tag(self, key, value='', dry_run=False):
+        """
+        Add a tag to this object.  Tags are stored by AWS and can be used
+        to organize and filter resources.  Adding a tag involves a round-trip
+        to the EC2 service.
+
+        :type key: str
+        :param key: The key or name of the tag being stored.
+
+        :type value: str
+        :param value: An optional value that can be stored with the tag.
+                      If you want only the tag name and no value, the
+                      value should be the empty string.
+        """
+        self.add_tags({key: value}, dry_run)
+
+    def add_tags(self, tags, dry_run=False):
+        """
+        Add tags to this object.  Tags are stored by AWS and can be used
+        to organize and filter resources.  Adding tags involves a round-trip
+        to the EC2 service.
+
+        :type tags: dict
+        :param tags: A dictionary of key-value pairs for the tags being stored.
+                     If for some tags you want only the name and no value, the
+                     corresponding value for that tag name should be an empty
+                     string.
+        """
+        status = self.connection.create_tags(
+            [self.id],
+            tags,
+            dry_run=dry_run
+        )
+        if self.tags is None:
+            self.tags = TagSet()
+        self.tags.update(tags)
+
+    def remove_tag(self, key, value=None, dry_run=False):
+        """
+        Remove a tag from this object.  Removing a tag involves a round-trip
+        to the EC2 service.
+
+        :type key: str
+        :param key: The key or name of the tag being stored.
+
+        :type value: str
+        :param value: An optional value that can be stored with the tag.
+                      If a value is provided, it must match the value currently
+                      stored in EC2.  If not, the tag will not be removed.  If
+                      a value of None is provided, the tag will be
+                      unconditionally deleted.
+                      NOTE: There is an important distinction between a value
+                      of '' and a value of None.
+        """
+        self.remove_tags({key: value}, dry_run)
+
+    def remove_tags(self, tags, dry_run=False):
+        """
+        Removes tags from this object.  Removing tags involves a round-trip
+        to the EC2 service.
+
+        :type tags: dict
+        :param tags: A dictionary of key-value pairs for the tags being removed.
+                     For each key, the provided value must match the value
+                     currently stored in EC2.  If not, that particular tag will
+                     not be removed.  However, if a value of None is provided,
+                     the tag will be unconditionally deleted.
+                     NOTE: There is an important distinction between a value of
+                     '' and a value of None.
+        """
+        status = self.connection.delete_tags(
+            [self.id],
+            tags,
+            dry_run=dry_run
+        )
+        for key, value in tags.items():
+            if key in self.tags:
+                if value is None or value == self.tags[key]:
+                    del self.tags[key]