Class: Curator::Mongo::DataStore

Inherits:
Object
  • Object
show all
Defined in:
lib/curator/mongo/data_store.rb

Instance Method Summary collapse

Instance Method Details

#_collection(name) ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 93

def _collection(name)
  _db.collection(name)
end

#_db ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 97

def _db
  client.db(_db_name)
end

#_db_name ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 105

def _db_name
  @database_name
end

#_find_by_key_as_object_id(collection, id) ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 87

def _find_by_key_as_object_id(collection, id)
  if BSON::ObjectId.legal?(id)
    collection.find_one(:_id => BSON::ObjectId.from_string(id))
  end
end

#_find_by_key_as_provided(collection, id) ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 83

def _find_by_key_as_provided(collection, id)
  collection.find_one(:_id => id)
end

#_normalize_query(query) ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 114

def _normalize_query(query)
  query.inject({}) do |hash, (key, value)|
    case value
    when Range
      hash[key] = {'$gte' => value.first, '$lt' => value.last}
    else
      hash[key] = value
    end
    hash
  end
end

#client ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 7

def client
  return @client if @client

  if Curator.config.client
    @client        = Curator.config.client
    @database_name = Curator.config.database
    return @client
  end

  if ENV['MONGO_URI']
    require 'uri'
    uri = URI.parse(ENV['MONGO_URI'])
    @database_name = uri.path.gsub(/^\//, '')
    @client = ::Mongo::Connection.from_uri(uri.to_s)
    return @client
  end

  config = YAML.load(File.read(Curator.config.mongo_config_file))[Curator.config.environment]
  config = config.symbolize_keys

  host = config.delete(:host)
  port = config.delete(:port)
  password = ENV['MONGO_PASSWORD'] || config.delete(:password)
  username = ENV['MONGO_USERNAME'] || config.delete(:username)
  @database_name = config.delete(:database) || default_db_name
  @client = ::Mongo::Connection.new(host, port, config)
  @client.add_auth(@database_name, username, password) if username and password
  @client
end

#default_db_name ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 101

def default_db_name
  "#{Curator.config.database}:#{Curator.config.environment}"
end

#delete(collection_name, id) ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 56

def delete(collection_name, id)
  collection = _collection(collection_name)
  collection.remove(:_id => id)
end

#find_all(collection_name) ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 61

def find_all(collection_name)
  collection = _collection(collection_name)
  documents = collection.find
  documents.map {|doc| normalize_document(doc) }
end

#find_by_attribute(collection_name, field, query) ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 67

def find_by_attribute(collection_name, field, query)
  return [] if query.nil?

  exp = {}
  exp[field] = query
  collection = _collection(collection_name)
  documents = collection.find(_normalize_query(exp))
  documents.map {|doc| normalize_document(doc) }
end

#find_by_key(collection_name, id) ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 77

def find_by_key(collection_name, id)
  collection = _collection(collection_name)
  document = _find_by_key_as_provided(collection, id) || _find_by_key_as_object_id(collection, id)
  normalize_document(document) unless document.nil?
end

#normalize_document(doc) ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 109

def normalize_document(doc)
  key = doc.delete '_id'
  Hash[:key => key, :data => doc]
end

#remove_all_keys ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 37

def remove_all_keys
  self.reset!
end

#reset! ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 41

def reset!
  _db.collections.each {|coll| coll.drop unless coll.name =~ /system/ }
end

#save(options) ⇒ Object 



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# File 'lib/curator/mongo/data_store.rb', line 45

def save(options)
  collection = _collection options[:collection_name]
  key = options.delete(:key)
  document = options[:value]
  document.merge!({:_id => key}) unless key.nil?
  options.fetch(:index, {}).each do |index_name, index_value|
    collection.ensure_index index_name
  end
  collection.save document
end