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# frozen_string_literal: true
# Copyright, 2017, by Samuel G. D. Williams. <http://www.codeotaku.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
require_relative '../buffer'
require_relative '../filter'
require 'time'
require 'json'
module Console
module Serialized
class Logger
def initialize(io = $stderr, format: JSON, verbose: false, **options)
@io = io
@start = Time.now
@format = format
@verbose = verbose
end
attr :io
attr :start
attr :format
def verbose!(value = true)
@verbose = true
end
def dump(record)
@format.dump(record)
end
def call(subject = nil, *arguments, severity: UNKNOWN, **options, &block)
record = {
time: Time.now.iso8601,
severity: severity,
class: subject.class,
oid: subject.object_id,
pid: Process.pid,
}
if subject
record[:subject] = subject
end
message = arguments
if block_given?
if block.arity.zero?
message << yield
else
buffer = StringIO.new
yield buffer
message << buffer.string
end
end
if message.size == 1
record[:message] = message.first
elsif message.any?
record[:message] = message
end
if exception = find_exception(message)
record[:error] = {
kind: exception.class,
message: exception.message,
stack: format_stack(exception)
}
end
record.update(options)
@io.puts(self.dump(record))
end
private
def find_exception(message)
message.find{|part| part.is_a?(Exception)}
end
def format_stack(exception)
buffer = StringIO.new
format_backtrace(exception, buffer)
return buffer.string
end
def format_backtrace(exception, buffer)
buffer.puts exception.backtrace
if exception = exception.cause
buffer.puts
buffer.puts "Caused by: #{exception.class} #{exception.message}"
format_backtrace(exception, buffer)
end
end
end
end
end
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