Class: LogStash::Outputs::Amqp

Inherits:
Base
  • Object
show all
Defined in:
lib/logstash/outputs/amqp.rb

Constant Summary collapse

MQTYPES = 
[ "fanout", "direct", "topic" ]

Instance Attribute Summary

Attributes inherited from Base

#logger

Instance Method Summary collapse

Constructor Details

#initialize(url, config = {}, &block) ⇒ Amqp

Returns a new instance of Amqp.



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# File 'lib/logstash/outputs/amqp.rb', line 11

def initialize(url, config={}, &block)
  super

  @mq = nil
  @bulk_prefix = nil

  # Handle path /<vhost>/<type>/<name> or /<type>/<name>
  # vhost allowed to contain slashes
  if @url.path =~ %r{^/((.*)/)?([^/]+)/([^/]+)}
    unused, @vhost, @mqtype, @name = $~.captures
  else
    raise "amqp urls must have a path of /<type>/name or /vhost/<type>/name where <type> is #{MQTYPES.join(", ")}"
  end

  if !MQTYPES.include?(@mqtype)
    raise "Invalid type '#{@mqtype}' must be one of #{MQTYPES.join(", ")}"
  end
end

Instance Method Details

#receive(event) ⇒ Object 



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# File 'lib/logstash/outputs/amqp.rb', line 64

def receive(event)
  @logger.debug(["Sending event", { :url => @url, :event => event }])
  if @bulk_prefix
    @target.publish(@bulk_prefix + event.to_json + "\n")
  else
    @target.publish(event.to_json)
  end
end

#receive_raw(raw) ⇒ Object 



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# File 'lib/logstash/outputs/amqp.rb', line 75

def receive_raw(raw)
  if @target == nil
    raise "had trouble registering AMQP URL #{@url.to_s}, @target is nil"
  end

  @target.publish(raw)
end

#register ⇒ Object 



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# File 'lib/logstash/outputs/amqp.rb', line 31

def register
  @logger.info("Registering output #{@url}")
  query_args = @url.query ? CGI.parse(@url.query) : {}
  amqpsettings = {
    :vhost => (@vhost or "/"),
    :host => @url.host,
    :port => (@url.port or 5672),
  }
  amqpsettings[:user] = @url.user if @url.user
  amqpsettings[:pass] = @url.password if @url.password
  amqpsettings[:logging] = query_args.include? "debug"
  @logger.debug("Connecting with AMQP settings #{amqpsettings.inspect} to set up #{@mqtype.inspect} exchange #{@name.inspect}")
  @amqp = AMQP.connect(amqpsettings)
  @mq = MQ.new(@amqp)
  @target = nil

  if @urlopts.include? "es_index" and @urlopts.include? "es_type"
    @bulk_prefix = { "index" => { "_index" => @urlopts["es_index"], "_type" => @urlopts["es_type"] } }.to_json + "\n"
    @logger.debug "Preparing ElasticSearch bulk API header for injection: #{@bulk_prefix.inspect}"
  end

  @durable = @urlopts["durable"] ? true : false
  case @mqtype
    when "fanout"
      @target = @mq.fanout(@name, :durable => @durable)
    when "direct"
      @target = @mq.direct(@name, :durable => @durable)
    when "topic"
      @target = @mq.topic(@name, :durable => @durable)
  end # case @mqtype
end