Class: Fluent::RedisOutput

Inherits:
BufferedOutput
  • Object
show all
Defined in:
lib/fluent/plugin/out_redis.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ RedisOutput

Returns a new instance of RedisOutput.



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# File 'lib/fluent/plugin/out_redis.rb', line 16

def initialize
  super
  require 'redis'
  require 'msgpack'
end

Instance Attribute Details

#redis ⇒ Object (readonly)

Returns the value of attribute redis.



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# File 'lib/fluent/plugin/out_redis.rb', line 4

def redis
  @redis
end

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_redis.rb', line 22

def configure(conf)
  super

  if conf.has_key?('namespace')
    log.warn "namespace option has been removed from fluent-plugin-redis 0.1.3. Please add or remove the namespace '#{conf['namespace']}' manually."
  end
end

#format(tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_redis.rb', line 49

def format(tag, time, record)
  identifier = [tag, time].join(".")
  [identifier, record].to_msgpack
end

#shutdown ⇒ Object 



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# File 'lib/fluent/plugin/out_redis.rb', line 44

def shutdown
  @redis.quit
  super
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/out_redis.rb', line 30

def start
  super

  options = {
    :host => @host,
    :port => @port,
    :thread_safe => true,
    :db => @db_number
  }
  options[:password] = @password if @password

  @redis = Redis.new(options)
end

#write(chunk) ⇒ Object 



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# File 'lib/fluent/plugin/out_redis.rb', line 54

def write(chunk)
  @redis.pipelined {
    chunk.open { |io|
      begin
        MessagePack::Unpacker.new(io).each.each_with_index { |record, index|
          @redis.mapped_hmset "#{record[0]}.#{index}", record[1]
        }
      rescue EOFError
        # EOFError always occured when reached end of chunk.
      end
    }
  }
end