Justin Hunter > JSON-Any-1.24 > JSON::Any

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Module Version: 1.24   Source   Latest Release: JSON-Any-1.38

NAME ^

JSON::Any - Wrapper Class for the various JSON classes.

VERSION ^

Version 1.24

SYNOPSIS ^

This module will provide a coherent API to bring together the various JSON modules currently on CPAN. This module will allow you to code to any JSON API and have it work regardless of which JSON module is actually installed.

        use JSON::Any;

        my $j = JSON::Any->new;

        $json = $j->objToJson({foo=>'bar', baz=>'quux'});
        $obj = $j->jsonToObj($json);

or

        $json = $j->encode({foo=>'bar', baz=>'quux'});
        $obj = $j->decode($json);

or

        $json = $j->Dump({foo=>'bar', baz=>'quux'});
        $obj = $j->Load($json);

or

        $json = $j->to_json({foo=>'bar', baz=>'quux'});
        $obj = $j->from_json($json);

or without creating an object:

        $json = JSON::Any->objToJson({foo=>'bar', baz=>'quux'});
        $obj = JSON::Any->jsonToObj($json);

On load, JSON::Any will find a valid JSON module in your @INC by looking for them in this order:

        JSON::XS 
        JSON 
        JSON::DWIW 

And loading the first one it finds.

You may change the order by specifying it on the use JSON::Any line:

        use JSON::Any qw(DWIW XS JSON);

Specifying an order that is missing one of the modules will prevent that module from being used:

        use JSON::Any qw(DWIW XS JSON);

This will check in that order, and will never attempt to load JSON::Syck. This can also be set via the $ENV{JSON_ANY_ORDER} environment variable.

JSON::Syck has been deprecated by it's author, but in the attempt to still stay relevant as a "Compat Layer" JSON::Any still supports it. This support however has been made optional starting with JSON::Any 1.19. In deference to a bug request starting with JSON 1.20 JSON::Syck and other deprecated modules will still be installed, but only as a last resort and will now include a warning.

    use JSON::Any qw(Syck XS JSON); 

or

    $ENV{JSON_ANY_ORDER} = 'Syck XS JSON';

WARNING: If you call JSON::Any with an empty list

    use JSON::Any ();

It will skip the JSON package detection routines and will die loudly that it couldn't find a package.

FUNCTIONS ^

new

Will take any of the parameters for the underlying system and pass them through. However these values don't map between JSON modules, so, from a portability standpoint this is really only helpful for those paramters that happen to have the same name. This will be addressed in a future release.

The one parameter that is universally supported (to the extent that is supported by the underlying JSON modules) is utf8. When this parameter is enabled all resulting JSON will be marked as unicode, and all unicode strings in the input data structure will be preserved as such.

Also note that the allow_blessed parameter is recognised by all the modules that throw exceptions when a blessed reference is given them meaning that setting it to true works for all modules. Of course, that means that you cannot set it to false intentionally in order to always get such exceptions.

The actual output will vary, for example JSON will encode and decode unicode chars (the resulting JSON is not unicode) wheras JSON::XS will emit unicode JSON.

handlerType

Takes no arguments, returns a string indicating which JSON Module is in use.

handler

Takes no arguments, if called on an object returns the internal JSON::* object in use. Otherwise returns the JSON::* package we are using for class methods.

true

Takes no arguments, returns the special value that the internal JSON object uses to map to a JSON true boolean.

false

Takes no arguments, returns the special value that the internal JSON object uses to map to a JSON false boolean.

objToJson

Takes a single argument, a hashref to be converted into JSON. It returns the JSON text in a scalar.

to_json
Dump
encode

Aliases for objToJson, can be used interchangeably, regardless of the underlying JSON module.

jsonToObj

Takes a single argument, a string of JSON text to be converted back into a hashref.

from_json
Load
decode

Aliases for jsonToObj, can be used interchangeably, regardless of the underlying JSON module.

AUTHORS ^

Chris Thompson cthom at cpan.org

Chris Prather chris at prather.org

Robin Berjon robin at berjon.com

Marc Mims marc at questright.com

Tomas Doran bobtfish at bobtfish.net

BUGS ^

Please report any bugs or feature requests to bug-json-any at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=JSON-Any. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

ACKNOWLEDGEMENTS ^

This module came about after discussions on irc.perl.org about the fact that there were now six separate JSON perl modules with different interfaces.

In the spirit of Class::Any, JSON::Any was created with the considerable help of Matt 'mst' Trout.

Simon Wistow graciously supplied a patch for backwards compat with JSON::XS versions previous to 2.01

San Dimas High School Football Rules!

COPYRIGHT & LICENSE ^

Copyright 2007-2009 Chris Thompson, some rights reserved.

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

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