Class: Palmade::Tapsilog::Conn

Inherits:
Object
  • Object
show all
Defined in:
lib/palmade/tapsilog/conn.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(target, key, buffered = false) ⇒ Conn

Returns a new instance of Conn.



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# File 'lib/palmade/tapsilog/conn.rb', line 6

def initialize(target, key, buffered = false)
  if target =~ /(.+)\:(\d+)$/i
    @host = $~[1]
    @port = $~[2]
  else
    @host = target
    @port = nil
  end
  @key = key
  @socket = nil
  @buffered = buffered
  @max_tries = 6
end

Instance Attribute Details

#max_tries ⇒ Object

Returns the value of attribute max_tries.



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# File 'lib/palmade/tapsilog/conn.rb', line 4

def max_tries
  @max_tries
end

#socket ⇒ Object (readonly)

Returns the value of attribute socket.



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# File 'lib/palmade/tapsilog/conn.rb', line 3

def socket
  @socket
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/palmade/tapsilog/conn.rb', line 67

def close
  @socket.nil? ? nil : @socket.close rescue nil
end

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/palmade/tapsilog/conn.rb', line 71

def closed?
  @socket.nil? ? true : @socket.closed?
end

#connect(host, port) ⇒ Object 



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# File 'lib/palmade/tapsilog/conn.rb', line 20

def connect(host, port)
  if @socket.nil? || @socket.closed?
    real_connect(host, port)
    log('default', $$, 'authentication', @key)
  else
    @socket
  end
end

#flush ⇒ Object 



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# File 'lib/palmade/tapsilog/conn.rb', line 63

def flush
  @socket.flush unless @socket.nil?
end

#log(service, instance_key, severity, message, tags = {}, ts = nil) ⇒ Object 



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# File 'lib/palmade/tapsilog/conn.rb', line 29

def log(service, instance_key, severity, message, tags = {}, ts = nil)
  tries = 0
  connect(@host, @port)

  ts = Time.now if ts.nil?
  tag_string = Utils.hash_to_query_string(tags)

  fullmsg = ":#{service}:#{instance_key}:#{severity}:#{tag_string}:#{message}"

  # Truncate below the 8192 limit on Tapsilog service
  fullmsg = fullmsg[0,8190] if fullmsg.size > 8190

  len = [fullmsg.length].pack('i')

  begin
    # first 8-bytes, is len and checksum
    write "#{len}#{len}#{fullmsg}"
  rescue Exception => e
    $stderr.puts "Failed to write to server! Retrying... (#{tries})" +
                 "#{e.class.name}: #{e.message}\n#{e.backtrace.join("\n")}" unless @max_tries == -1

    if @max_tries == -1 || tries < @max_tries
      tries += 1
      close_possibly_dead_conn(tries)
      reconnect
      retry
    else
      raise e
    end
  end

  len
end

#reconnect! ⇒ Object Also known as: reconnect 



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# File 'lib/palmade/tapsilog/conn.rb', line 75

def reconnect!
  close unless closed?
  connect(@host, @port)
end