Gianni Ceccarelli

NAME

Net::Stomp::MooseHelpers::ReadTrace - class to read the output of Net::Stomp::MooseHelpers::TraceStomp

VERSION

version 2.3

SYNOPSIS

  my $reader = Net::Stomp::MooseHelpers::ReadTrace->new({
     trace_basedir => '/tmp/mq',
  });

  my @frames = $reader->sorted_frames('/queue/somewhere');

DESCRIPTION

Net::Stomp::MooseHelpers::TraceStomp and Net::Stomp::MooseHelpers::TraceOnly write STOMP frames to disk. This class helps you read them back.

ATTRIBUTES

trace_basedir

The directory from which frames will be read. Accepts strings and Path::Class::Dir objects.

METHODS

read_frame_from_filename

  my $stomp_frame = $reader->read_frame_from_filename('/a/path');

Given a filename (unrelated to "trace_basedir"), returns a Net::Stomp::Frame object parsed from it, using "read_frame_from_fh".

read_frame_from_fh

  my $stomp_frame = $reader->read_frame_from_fh($fh);

Given a filehandle (binmode it first!), returns a Net::Stomp::Frame object parsed from it. If the filehandle contains more than one frame, reads the first one and leaves the read position just after it.

If the file was not a dumped STOMP frame, this function will probably return nothing; if it looked enough like a STOMP frame, you'll get back whatever could be parsed.

trace_subdir_for_destination

  my $dir = $reader->trace_subdir_for_destination($destination);

Returns a Path::Class::Dir object pointing at the (possibly non-existent) directory used to store frames for the given destination.

->trace_subdir_for_destination() is the same as ->trace_basedir.

Passing an explicit undef or an empty string will throw an exception, see "sorted_filenames" and "clear_destination" for the reason.

sorted_filenames

  my @names = $reader->sorted_filenames();
  my @names = $reader->sorted_filenames($destination);

Given a destination (/queue/something or similar), returns all frame dump filenames found under the corresponding dump directory under "trace_basedir", sorted by filename (that is, by timestamp).

If you don't specify a destination, all filenames from all destinations will be returned. Passing an explicit undef or an empty string will throw an exception, to save you when you try doing things like:

  my $dest = get_something_from_config;
  my @names = $reader->sorted_filenames($dest);

and end up getting way more items than you thought.

clear_destination

  $reader->clear_destination();
  $reader->clear_destination($destination);

Given a destination (/queue/something or similar), removes all stored frames for it.

If you don't specify a destination, all frames for all destinations will be removed. Passing an explicit undef or an empty string will throw an exception, to save you when you try doing things like:

  my $dest = get_something_from_config;
  $reader->clear_destination($dest);

and end up deleting way more than you thought.

sorted_frames

  my @frames = $reader->sorted_frames();
  my @frames = $reader->sorted_frames($destination);

Same as "sorted_filenames", but returns the parsed frames instead of the filenames.

AUTHOR

Gianni Ceccarelli <gianni.ceccarelli@net-a-porter.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2012 by Net-a-porter.com.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.