Class: Embulk::Input::Elasticsearch::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/embulk/input/elasticsearch/connection.rb

Instance Method Summary collapse

Constructor Details

#initialize(task) ⇒ Connection

Returns a new instance of Connection.



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# File 'lib/embulk/input/elasticsearch/connection.rb', line 8

def initialize(task)
  @scroll = task['scroll']
  @index = task['index']
  @index_type = task['index_type']
  @size = task['per_size']
  @fields = task['fields']
  @sort = task['sort']
  @limit_size = task['limit_size']
  @retry_on_failure = task['retry_on_failure']
  @client = create_client(
    nodes: task['nodes'],
    reload_connections: task['reload_connections'],
    reload_on_failure: task['reload_on_failure'],
    retry_on_failure: task['retry_on_failure'],
    request_timeout: task['request_timeout']
  )
end

Instance Method Details

#create_client(nodes:, reload_connections:, reload_on_failure:, retry_on_failure:, request_timeout:) ⇒ Object 



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# File 'lib/embulk/input/elasticsearch/connection.rb', line 26

def create_client(nodes: ,reload_connections: ,reload_on_failure: ,retry_on_failure: ,request_timeout:)
  transport = ::Elasticsearch::Transport::Transport::HTTP::Faraday.new(
    {
      hosts: nodes.map{ |node| Hash[node.map{ |k, v| [k.to_sym, v] }] },
      options: {
        reload_connections: reload_connections,
        reload_on_failure: reload_on_failure,
        retry_on_failure: retry_on_failure,
        transport_options: {
          request: { timeout: request_timeout }
        }
      }
    }
  )

  ::Elasticsearch::Client.new transport: transport
end

#search_with_query(query) ⇒ Object 



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# File 'lib/embulk/input/elasticsearch/connection.rb', line 44

def search_with_query(query)
  search_option = get_search_option(query)
  Embulk.logger.info("#{search_option}")
  r = search_with_retry { @client.search(search_option) }
  i = 0
  Converter.get_sources(r, @fields).each do |result|
    yield(result) if block_given?
    return if @limit_size == (i += 1)
  end

  while r = (search_with_retry { @client.scroll(scroll_id: r['_scroll_id'], scroll: @scroll) }) and (not r['hits']['hits'].empty?) do
    Converter.get_sources(r, @fields).each do |result|
      yield(result) if block_given?
      return if @limit_size == (i += 1)
    end
  end
end