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POE::Filter::Zlib.3pm

NAME

POE::Filter::Zlib - A POE filter wrapped around Compress::Zlib

SYNOPSIS

     use POE::Filter::Zlib;
 
     my $filter = POE::Filter::Zlib->new();
     my $scalar = 'Blah Blah Blah';
     my $compressed_array   = $filter->put( [ $scalar ] );
     my $uncompressed_array = $filter->get( $compressed_array );
 
     use POE qw(Filter::Stackable Filter::Line Filter::Zlib);
 
     my ($filter) = POE::Filter::Stackable->new();
     $filter->push( POE::Filter::Zlib->new(),
                    POE::Filter::Line->new( InputRegexp => '\015?\012', OutputLiteral => "\015\012" ),
 
 

DESCRIPTION

POE::Filter::Zlib provides a POE filter for performing compression/uncompression using Compress::Zlib. It is suitable for use with POE::Filter::Stackable.

This filter is not ideal for streaming compressed data over sockets etc. as it employs compress and uncompress zlib functions.

POE::Filter::Zlib::Stream is recommended for that type of activity.

CONSTRUCTOR

new

Creates a new POE::Filter::Zlib object. Takes one optional argument,

   'level': the level of compression to employ.
 
 

Consult Compress::Zlib for details.

METHODS

get

get_one_start

get_one

Takes an arrayref which is contains lines of compressed input. Returns an arrayref of uncompressed lines.

get_pending

Returns any data in a filter's input buffer. The filter's input buffer is not cleared, however.

put

Takes an arrayref containing lines of uncompressed output, returns an arrayref of compressed lines.

clone

Makes a copy of the filter, and clears the copy's buffer.

level

Sets the level of compression employed to the given value. If no value is supplied, returns the current level setting.

AUTHOR

Chris Williams <chris@bingosnet.co.uk>

Martijn van Beers <martijn@cpan.org>

LICENSE

Copyright X Chris Williams and Martijn van Beers.

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

SEE ALSO

POE

POE::Filter

POE::Filter::Zlib::Stream

Compress::Zlib

POE::Filter::Stackable