Class: Embulk::Input::HttpInputPlugin

Inherits:
InputPlugin
  • Object
show all
Defined in:
lib/embulk/input/http.rb

Defined Under Namespace

Classes: Iter, IterJson, IterXML

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.transaction(config, &control) ⇒ Object 



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# File 'lib/embulk/input/http.rb', line 10

def self.transaction(config, &control)
  url = config.param("url", :string)
  schema = config.param("schema", :array)
  method = config.param("method", :string, default: "get")
  params = config.param("params", :array, default: [])
  iterate = config.param("iterate", :hash)
  open_timeout = config.param("open_timeout", :float, default: 2.0)
  read_timeout = config.param("read_timeout", :float, default: 10.0)

  data_type = iterate["type"]
  unless ["json", "xml"].include?(data_type)
    raise "Unknown data_type #{data_type}, only supported for json or xml"
  end

  columns = schema.each_with_index.map do |c, i|
    Column.new(i, c["name"], c["type"].to_sym)
  end

  task = {
    :url => url,
    :method => method,
    :params => params,
    :schema => schema,
    :iterate => iterate,
    :open_timeout => open_timeout,
    :read_timeout => read_timeout
  }

  report = yield(task, columns, 1)
  config.merge(report["done"].flatten.compact)
  {}
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/embulk/input/http.rb', line 43

def run
  schema = @task["schema"]
  iterate = @task["iterate"]

  data = fetch.body
  data_type = iterate["type"]

  case data_type
  when "json"
    iter = IterJson.new(data, iterate["path"])
  when "xml"
    iter = IterXML.new(data, iterate["path"])
  else
    raise "Unsupported data_type #{data_type}"
  end

  rows = 0
  iter.each do |e|
    rows += 1
    @page_builder.add(schema.map{|c|
      name = c["name"]
      type = c["type"]
      val = e[name].nil? ? "" : e[name]
      case type
      when "string"
        val
      when "long"
        val.to_i
      when "double"
        val.to_f
      when "boolean"
        ["yes", "true", "1"].include?(val)
      when "timestamp"
        (val.nil? || val.empty?) ? nil : Time.strptime(val, c["format"])
      else
        raise "Unsupported type #{type}"
      end
    })
  end
  @page_builder.finish

  {:rows => rows}
end