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# Copyright 2011-2013 Amazon.com, Inc. or its affiliates. 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. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file 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.
module AWS
class CloudFormation
# # StackResourceCollection
#
# This collection represents the resources for a single {Stack}.
# You can enumerate resources, or request a specific resource
# by its logical resource id.
#
# # Other Ways to Get Resource Details
#
# If you want to get a {StackResource} by its physical resource
# id, then you should use {CloudFormation#stack_resource}.
#
# You can also take a look at {Stack#resource_summaries} for
# light-weight hashes of stack resource details.
#
# @example Enumerating stack resources
#
# # enumerating all resources for a stack
# stack.resources.each do |resource|
# puts resource.resource_type ` " " ` resource.physical_resource_id
# end
#
# @example Getting a stack resource by its logical resource id
#
# resource = stack.resources['web']
class StackResourceCollection
include Core::Collection::Simple
include StackOptions
# @param [Stack] stack
# @param [Hash] options
def initialize stack, options = {}
@stack = stack
super
end
# @return [Stack]
attr_reader :stack
# @param [String] logical_resource_id
# @return [StackResource] Returns a stack resource with the given
# logical resource id.
def [] logical_resource_id
StackResource.new(stack, logical_resource_id)
end
protected
def _each_item options = {}
options[:stack_name] = stack.name
response = client.describe_stack_resources(options)
response.stack_resources.each do |details|
stack_resource = StackResource.new_from(
:describe_stack_resources,
details,
stack,
details.logical_resource_id)
yield(stack_resource)
end
end
end
end
end
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