Class: Logfoo::StderrExceptionHanlder

Inherits:
Object
  • Object
show all
Defined in:
lib/logfoo/exception_handlers/stderr_exception_handler.rb

Constant Summary collapse

BACKTRACE_LINE = 
"\t%s\n".freeze
EXCEPTION_LINE = 
"%s: %s\n".freeze

Instance Method Summary collapse

Constructor Details

#initialize(appender = nil) ⇒ StderrExceptionHanlder

Returns a new instance of StderrExceptionHanlder.



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# File 'lib/logfoo/exception_handlers/stderr_exception_handler.rb', line 7

def initialize(appender = nil)
  @appender = appender || IoAppender.new(STDERR)
end

Instance Method Details

#call(entry) ⇒ Object 



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# File 'lib/logfoo/exception_handlers/stderr_exception_handler.rb', line 11

def call(entry)
  @appender.write format(entry)
end

#format(entry) ⇒ Object 



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# File 'lib/logfoo/exception_handlers/stderr_exception_handler.rb', line 15

def format(entry)
  values = []
  values << (EXCEPTION_LINE % [entry.exception.class, entry.exception.message])
  if entry.exception.backtrace.is_a?(Array)
    values << entry.exception.backtrace.map{|l| BACKTRACE_LINE % l }.join
  end
  values.join
end