Class: Logtail::LogEntry

Inherits:
Object
  • Object
show all
Defined in:
lib/logtail/log_entry.rb

Overview

Represents a new log entry into the log. This is an intermediary class between ‘Logger` and the log device that you set it up with.

Constant Summary collapse

BINARY_LIMIT_THRESHOLD =

:nodoc:

1_000.freeze
DT_PRECISION = 
6.freeze
MESSAGE_MAX_BYTES = 
8192.freeze
LOGGER_FILE = 
'/logtail/logger.rb'.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(level, time, progname, message, context_snapshot, event, options = {}) ⇒ LogEntry

Creates a log entry suitable to be sent to the Logtail API.

Parameters:

  • level (Integer) —

    the log level / severity

  • time (Time) —

    the exact time the log message was written

  • progname (String) —

    the progname scope for the log message

  • message (String) —

    Human readable log message.

  • context_snapshot (Hash) —

    structured data representing a snapshot of the context at the given point in time.

  • event (Logtail.Event) —

    structured data representing the log line event. This should be an instance of Event.



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# File 'lib/logtail/log_entry.rb', line 29

def initialize(level, time, progname, message, context_snapshot, event, options = {})
  @level = level
  @time = time.utc
  @progname = progname

  # If the message is not a string we call inspect to ensure it is a string.
  # This follows the default behavior set by ::Logger
  # See: https://github.com/ruby/ruby/blob/trunk/lib/logger.rb#L615
  @message = message.is_a?(String) ? message : message.inspect
  @message = @message.byteslice(0, MESSAGE_MAX_BYTES)
  @tags = options[:tags]
  @context_snapshot = context_snapshot
  @event = event
  @runtime_context = current_runtime_context || {}
end

Instance Attribute Details

#context_snapshot ⇒ Object (readonly)

Returns the value of attribute context_snapshot.



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# File 'lib/logtail/log_entry.rb', line 17

def context_snapshot
  @context_snapshot
end

#event ⇒ Object (readonly)

Returns the value of attribute event.



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# File 'lib/logtail/log_entry.rb', line 17

def event
  @event
end

#level ⇒ Object (readonly)

Returns the value of attribute level.



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# File 'lib/logtail/log_entry.rb', line 17

def level
  @level
end

#message ⇒ Object (readonly)

Returns the value of attribute message.



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# File 'lib/logtail/log_entry.rb', line 17

def message
  @message
end

#progname ⇒ Object (readonly)

Returns the value of attribute progname.



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# File 'lib/logtail/log_entry.rb', line 17

def progname
  @progname
end

#tags ⇒ Object (readonly)

Returns the value of attribute tags.



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# File 'lib/logtail/log_entry.rb', line 17

def tags
  @tags
end

#time ⇒ Object (readonly)

Returns the value of attribute time.



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# File 'lib/logtail/log_entry.rb', line 17

def time
  @time
end

Instance Method Details

#inspect ⇒ Object 



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# File 'lib/logtail/log_entry.rb', line 83

def inspect
  to_s
end

#to_hash(options = {}) ⇒ Object

Builds a hash representation containing simple objects, suitable for serialization (JSON).



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# File 'lib/logtail/log_entry.rb', line 46

def to_hash(options = {})
  options ||= {}
  hash = {
    :level => level,
    :dt => formatted_dt,
    :message => message,
  }

  if !tags.nil? && tags.length > 0
    hash[:tags] = tags
  end

  if !event.nil?
    hash.merge!(event)
  end

  if !context_snapshot.nil? && context_snapshot.length > 0
    hash[:context] = context_snapshot
  end

  hash[:context] ||= {}
  hash[:context][:runtime] ||= {}
  hash[:context][:runtime].merge!(@runtime_context)

  if options[:only]
    hash.select do |key, _value|
      options[:only].include?(key)
    end
  elsif options[:except]
    hash.select do |key, _value|
      !options[:except].include?(key)
    end
  else
    hash
  end
end

#to_json(options = {}) ⇒ Object 



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# File 'lib/logtail/log_entry.rb', line 87

def to_json(options = {})
  to_hash.to_json
end

#to_msgpack(*args) ⇒ Object 



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# File 'lib/logtail/log_entry.rb', line 91

def to_msgpack(*args)
  to_hash.to_msgpack(*args)
end

#to_s ⇒ Object

This is used when LogEntry objects make it to a non-Logtail logger.



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# File 'lib/logtail/log_entry.rb', line 96

def to_s
  message + "\n"
end