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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.
require 'aws/core'
require 'aws/emr/config'
require 'time'
module AWS
# Provides an expressive, object-oriented interface to Amazon Elastic
# MapReduce.
#
# To use Amazon Elastic MapReduce you must first
# [sign up here](http://aws.amazon.com/elasticmapreduce/)
#
# For more information about Amazon Elastic MapReduce, see:
#
# * [Amazon Elastic MapReduce](http://aws.amazon.com/elasticmapreduce/)
# * [Amazon Elastic MapReduce Documentation](http://aws.amazon.com/documentation/elasticmapreduce/)
#
# ## Credentials
#
# You can setup default credentials for all AWS services via
# AWS.config:
#
# AWS.config(
# :access_key_id => 'YOUR_ACCESS_KEY_ID',
# :secret_access_key => 'YOUR_SECRET_ACCESS_KEY')
#
# Or you can set them directly on the EMR interface:
#
# emr = AWS::EMR.new(
# :access_key_id => 'YOUR_ACCESS_KEY_ID',
# :secret_access_key => 'YOUR_SECRET_ACCESS_KEY')
#
# # Job Flows
#
# The {#job_flows} method returns a collection you use to interact
# with your job flows.
#
# emr = AWS::EMR.new
#
# # creating a job flow
# job_flow = emr.job_flows.create(...)
#
# # enumerating job flows
# emr.job_flows.each do |job_flow|
# puts job_flow.id
# end
#
# See {JobFlowCollection} and {JobFlow} for more information on working
# with job flows.
#
# @!attribute [r] client
# @return [Client] the low-level EMR client object
class EMR
autoload :Client, 'aws/emr/client'
autoload :Errors, 'aws/emr/errors'
autoload :InstanceGroup, 'aws/emr/instance_group'
autoload :InstanceGroupCollection, 'aws/emr/instance_group_collection'
autoload :JobFlow, 'aws/emr/job_flow'
autoload :JobFlowCollection, 'aws/emr/job_flow_collection'
include Core::ServiceInterface
endpoint_prefix 'elasticmapreduce'
# @return [JobFlowCollection] Returns a collection that represents all
# job flows.
def job_flows
JobFlowCollection.new(:config => config)
end
alias_method :jobs, :job_flows
end
end
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