Class: Heirloom::AWS::SimpleDB

Inherits:
Object
  • Object
show all
Defined in:
lib/heirloom/aws/simpledb.rb

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ SimpleDB

Returns a new instance of SimpleDB.



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# File 'lib/heirloom/aws/simpledb.rb', line 7

def initialize(args)
  @config = args[:config]
  
  fog_args = { :region => @config.metadata_region }

  if @config.use_iam_profile
    fog_args[:use_iam_profile] = true
  else
    fog_args[:aws_access_key_id]     = @config.access_key
    fog_args[:aws_secret_access_key] = @config.secret_key
  end

  @sdb = Fog::AWS::SimpleDB.new fog_args
end

Instance Method Details

#count(domain) ⇒ Object 



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# File 'lib/heirloom/aws/simpledb.rb', line 54

def count(domain)
  body = @sdb.select("SELECT count(*) FROM `#{domain}`").body
  body['Items']['Domain']['Count'].first.to_i
end

#create_domain(domain) ⇒ Object 



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# File 'lib/heirloom/aws/simpledb.rb', line 30

def create_domain(domain)
  @sdb.create_domain(domain) unless domain_exists?(domain)
end

#delete(domain, key) ⇒ Object 



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# File 'lib/heirloom/aws/simpledb.rb', line 50

def delete(domain, key)
  @sdb.delete_attributes domain, key
end

#delete_domain(domain) ⇒ Object 



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# File 'lib/heirloom/aws/simpledb.rb', line 34

def delete_domain(domain)
  @sdb.delete_domain(domain)
end

#domain_empty?(domain) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/heirloom/aws/simpledb.rb', line 38

def domain_empty?(domain)
  count(domain).zero?
end

#domain_exists?(domain) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/heirloom/aws/simpledb.rb', line 26

def domain_exists?(domain)
  domains.include? domain
end

#domains ⇒ Object 



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# File 'lib/heirloom/aws/simpledb.rb', line 22

def domains
  @sdb.list_domains.body['Domains']
end

#item_count(domain, item) ⇒ Object 



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# File 'lib/heirloom/aws/simpledb.rb', line 59

def item_count(domain, item)
  query = "SELECT count(*) FROM `#{domain}` WHERE itemName() = '#{item}'"
  @sdb.select(query).body['Items']['Domain']['Count'].first.to_i
end

#put_attributes(domain, key, attributes, options = {}) ⇒ Object 



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# File 'lib/heirloom/aws/simpledb.rb', line 42

def put_attributes(domain, key, attributes, options = {})
  @sdb.put_attributes domain, key, attributes, options
end

#select(query) ⇒ Object 



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# File 'lib/heirloom/aws/simpledb.rb', line 46

def select(query)
  @sdb.select(query).body['Items']
end