[gitmo/MooseX-Object-Pluggable.git] / lib / MooseX / Object / Pluggable.pm

package MooseX::Object::Pluggable;

use Carp;
use Moose::Role;
use Class::MOP;
use Module::Pluggable::Object;

our $VERSION = '0.0007';

=head1 NAME

    MooseX::Object::Pluggable - Make your classes pluggable

=head1 SYNOPSIS

    package MyApp;
    use Moose;

    with 'MooseX::Object::Pluggable';

    ...

    package MyApp::Plugin::Pretty;
    use Moose::Role;

    sub pretty{ print "I am pretty" }

    1;

    #
    use MyApp;
    my $app = MyApp->new;
    $app->load_plugin('Pretty');
    $app->pretty;

=head1 DESCRIPTION

This module is meant to be loaded as a role from Moose-based classes
it will add five methods and four attributes to assist you with the loading
and handling of plugins and extensions for plugins. I understand that this may
pollute your namespace, however I took great care in using the least ambiguous
names possible.

=head1 How plugins Work

Plugins and extensions are just Roles by a fancy name. They are loaded at runtime
on demand and are instance, not class based. This means that if you have more than
one instance of a class they can all have different plugins loaded. This is a feature.

Plugin methods are allowed to C<around>, C<before>, C<after>
their consuming classes, so it is important to watch for load order as plugins can
and will overload each other. You may also add attributes through has.

Please note that when you load at runtime you lose the ability to wrap C<BUILD>
and roles using C<has> will not go through compile time checks like C<required>
and <default>.

Even though C<override> will work , I STRONGLY discourage it's use
and a warning will be thrown if you try to use it.
This is closely linked to the way multiple roles being applied is handled and is not
likely to change. C<override> bevavior is closely linked to inheritance and thus will
likely not work as you expect it in multiple inheritance situations. Point being,
save yourself the headache.

=head1 How plugins are loaded

When roles are applied at runtime an anonymous class will wrap your class and
C<$self-E<gt>blessed> and C<ref $self> will no longer return the name of your object,
they will instead return the name of the anonymous class created at runtime.
See C<_original_class_name>.

=head1 Notice regarding extensions.

Because I have been able to identify a real-world use case for the extension mechanism
I have decided to deprecate it and remove it in the next major release.

=head1 Usage

For a simple example see the tests included in this distribution.

=head1 Attributes

=head2 _plugin_ns

String. The prefix to use for plugin names provided. MyApp::Plugin is sensible.

=head2 _plugin_ext

Boolean. Indicates whether we should attempt to load plugin extensions.
Defaults to true;

=head2 _plugin_ext_ns

B<THIS FUNCTIONALITY HAS BEEN DEPRECATED AND WILL GO AWAY.> If you use
this, please email me, but I am fairly sure that nobody uses this at
all and it's just adding bloat and making things kind of ugly.

String. The namespace plugin extensions have. Defaults to 'ExtensionFor'.

This means that is _plugin_ns is "MyApp::Plugin" and _plugin_ext_ns is
"ExtensionFor" loading plugin "Bar" would search for extensions in
"MyApp::Plugin::Bar::ExtensionFor::*".

=head2 _plugin_app_ns

ArrayRef, Accessor automatically dereferences into array on a read call.
By default will be filled with the class name and it's prescedents, it is used
to determine which directories to look for plugins as well as which plugins
take presedence upon namespace collitions. This allows you to subclass a pluggable
class and still use it's plugins while using yours first if they are available.

=cut

=head2 _plugin_locator

An automatically built instance of L<Module::Pluggable::Object> used to locate
available plugins.

=cut

#--------#---------#---------#---------#---------#---------#---------#---------#

has _plugin_ns      => (is => 'rw', required => 1, isa => 'Str',
                        default => 'Plugin');
has _plugin_ext     => (is => 'rw', required => 1, isa => 'Bool',
                        default => 1);
has _plugin_ext_ns  => (is => 'rw', required => 1, isa => 'Str',
                        default => 'ExtensionFor');
has _plugin_loaded  => (is => 'rw', required => 1, isa => 'HashRef',
                        default => sub{ {} });
has _plugin_app_ns  => (is => 'rw', required => 1, isa => 'ArrayRef', lazy => 1,
                        auto_deref => 1,
                        default => sub{ shift->_build_plugin_app_ns },
                        trigger => sub{ $_[0]->_clear_plugin_locator
                                         if $_[0]->_has_plugin_locator; },
                       );
has _plugin_locator => (is => 'rw', required => 1, lazy => 1,
                        isa       => 'Module::Pluggable::Object',
                        clearer   => '_clear_plugin_locator',
                        predicate => '_has_plugin_locator',
                        default   => sub{ shift->_build_plugin_locator });

#--------#---------#---------#---------#---------#---------#---------#---------#

=head1 Public Methods

=head2 load_plugins @plugins

=head2 load_plugin $plugin

Load the apropriate role for C<$plugin> as well as any extensions it provides
if extensions are enabled.

=cut

sub load_plugins {
    my ($self, @plugins) = @_;
    die("You must provide a plugin name") unless @plugins;

    my $loaded = $self->_plugin_loaded;

    my @load = grep { not exists $loaded->{$_} } @plugins;

    my @roles = map { $self->_role_from_plugin($_) } @load;

    if ( $self->_load_and_apply_role(@roles) ) {
        @{ $loaded }{@load} = @roles;

        if ( $self->_plugin_ext ) {
            $self->load_plugin_ext($_) for @load;
        }

        return 1;
    } else {
        return;
    }
}


sub load_plugin {
  my $self = shift;
  $self->load_plugins(@_);
}


=head2 load_plugin_ext

B<THIS FUNCTIONALITY HAS BEEN DEPRECATED AND WILL GO AWAY.> If you use
this, please email me, but I am fairly sure that nobody uses this at
all and it's just adding bloat and making things kind of ugly.

Will load any extensions for a particular plugin. This should be called
automatically by C<load_plugin> so you don't need to worry about it.
It basically attempts to load any extension that exists for a plugin
that is already loaded. The only reason for using this is if you want to
keep _plugin_ext as false and only load extensions manually, which I don't
recommend.

=cut

sub load_plugin_ext{
    my ($self, $plugin) = @_;
    die("You must provide a plugin name") unless $plugin;
    my $role = $self->_plugin_loaded->{$plugin};

    # $p for plugin, $r for role
    while( my($p,$r) = each %{ $self->_plugin_loaded }){

        my $ext = join "::", $role, $self->_plugin_ext_ns, $p;
        if( $plugin =~ /^\+(.*)/ ){
            eval{ $self->_load_and_apply_role( $ext ) };
        } else{
            $self->_load_and_apply_role( $ext ) if
                grep{ /^${ext}$/ } $self->_plugin_locator->plugins;
        }

        #go back to prev loaded modules and load extensions for current module?
        #my $ext2 = join "::", $r, $self->_plugin_ext_ns, $plugin;
        #$self->_load_and_apply_role( $ext2 )
        #    if Class::Inspector->installed($ext2);
    }
}

=head2 _original_class_name

Because of the way roles apply C<$self-E<gt>blessed> and C<ref $self> will
no longer return what you expect. Instead use this class to get your original
class name.

=cut

sub _original_class_name{
    my $self = shift;
    return (grep {$_ !~ /^Moose::/} $self->meta->class_precedence_list)[0];
}


=head1 Private Methods

There's nothing stopping you from using these, but if you are using them
for anything thats not really complicated you are probably doing
something wrong. Some of these may be inlined in the future if performance
becomes an issue (which I doubt).

=head2 _role_from_plugin $plugin

Creates a role name from a plugin name. If the plugin name is prepended
with a C<+> it will be treated as a full name returned as is. Otherwise
a string consisting of C<$plugin>  prepended with the C<_plugin_ns>
and the first valid value from C<_plugin_app_ns> will be returned. Example

   #assuming appname MyApp and C<_plugin_ns> 'Plugin'
   $self->_role_from_plugin("MyPlugin"); # MyApp::Plugin::MyPlugin

=cut

sub _role_from_plugin{
    my ($self, $plugin) = @_;

    return $1 if( $plugin =~ /^\+(.*)/ );

    my $o = join '::', $self->_plugin_ns, $plugin;
    #Father, please forgive me for I have sinned.
    my @roles = grep{ /${o}$/ } $self->_plugin_locator->plugins;

    croak("Unable to locate plugin '$plugin'") unless @roles;
    return $roles[0] if @roles == 1;

    my $i = 0;
    my %presedence_list = map{ $i++; "${_}::${o}", $i } $self->_plugin_app_ns;

    @roles = sort{ $presedence_list{$a} <=> $presedence_list{$b}} @roles;

    return shift @roles;
}

=head2 _load_and_apply_role @roles

Require C<$role> if it is not already loaded and apply it. This is
the meat of this module.

=cut

sub _load_and_apply_role{
    my ($self, @roles) = @_;
    die("You must provide a role name") unless @roles;

    foreach my $role ( @roles ) {
        eval { Class::MOP::load_class($role) };
        confess("Failed to load role: ${role} $@") if $@;

        carp("Using 'override' is strongly discouraged and may not behave ".
            "as you expect it to. Please use 'around'")
        if scalar keys %{ $role->meta->get_override_method_modifiers_map };
    }

    Moose::Util::apply_all_roles( $self, @roles );

    return 1;
}

=head2 _build_plugin_app_ns

Automatically builds the _plugin_app_ns attribute with the classes in the
class presedence list that are not part of Moose.

=cut

sub _build_plugin_app_ns{
    my $self = shift;
    my @names = (grep {$_ !~ /^Moose::/} $self->meta->class_precedence_list);
    return \@names;
}

=head2 _build_plugin_locator

Automatically creates a L<Module::Pluggable::Object> instance with the correct
search_path.

=cut

sub _build_plugin_locator{
    my $self = shift;

    my $locator = Module::Pluggable::Object->new
        ( search_path =>
          [ map { join '::', ($_, $self->_plugin_ns) } $self->_plugin_app_ns ]
        );
    return $locator;
}

=head2 meta

Keep tests happy. See L<Moose>

=cut

1;

__END__;

=head1 SEE ALSO

L<Moose>, L<Moose::Role>, L<Class::Inspector>

=head1 AUTHOR

Guillermo Roditi, <groditi@cpan.org>

=head1 BUGS

Holler?

Please report any bugs or feature requests to
C<bug-moosex-object-pluggable at rt.cpan.org>, or through the web interface at
L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=MooseX-Object-Pluggable>.
I will be notified, and then you'll automatically be notified of progress on
your bug as I make changes.

=head1 SUPPORT

You can find documentation for this module with the perldoc command.

    perldoc MooseX-Object-Pluggable

You can also look for information at:

=over 4

=item * AnnoCPAN: Annotated CPAN documentation

L<http://annocpan.org/dist/MooseX-Object-Pluggable>

=item * CPAN Ratings

L<http://cpanratings.perl.org/d/MooseX-Object-Pluggable>

=item * RT: CPAN's request tracker

L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=MooseX-Object-Pluggable>

=item * Search CPAN

L<http://search.cpan.org/dist/MooseX-Object-Pluggable>

=back

=head1 ACKNOWLEDGEMENTS

=over 4

=item #Moose - Huge number of questions

=item Matt S Trout <mst@shadowcatsystems.co.uk> - ideas / planning.

=item Stevan Little - EVERYTHING. Without him this would have never happened.

=back

=head1 COPYRIGHT

Copyright 2007 Guillermo Roditi.  All Rights Reserved.  This is
free software; you may redistribute it and/or modify it under the same
terms as Perl itself.

=cut
Commit	Line	Data
421e9f8d	1	package MooseX::Object::Pluggable;
	2
	3	use Carp;
421e9f8d	4	use Moose::Role;
208f7b27	5	use Class::MOP;
208f7b27	6	use Module::Pluggable::Object;
421e9f8d	7
0e16871f	8	our $VERSION = '0.0007';
421e9f8d	9
	10	=head1 NAME
	11
	12	MooseX::Object::Pluggable - Make your classes pluggable
	13
	14	=head1 SYNOPSIS
	15
	16	package MyApp;
	17	use Moose;
9843fa64	18
421e9f8d	19	with 'MooseX::Object::Pluggable';
	20
	21	...
	22
	23	package MyApp::Plugin::Pretty;
	24	use Moose::Role;
	25
	26	sub pretty{ print "I am pretty" }
	27
	28	1;
	29
	30	#
	31	use MyApp;
	32	my $app = MyApp->new;
	33	$app->load_plugin('Pretty');
	34	$app->pretty;
	35
	36	=head1 DESCRIPTION
	37
	38	This module is meant to be loaded as a role from Moose-based classes
9bef9c02	39	it will add five methods and four attributes to assist you with the loading
421e9f8d	40	and handling of plugins and extensions for plugins. I understand that this may
	41	pollute your namespace, however I took great care in using the least ambiguous
	42	names possible.
	43
	44	=head1 How plugins Work
	45
	46	Plugins and extensions are just Roles by a fancy name. They are loaded at runtime
	47	on demand and are instance, not class based. This means that if you have more than
	48	one instance of a class they can all have different plugins loaded. This is a feature.
	49
	50	Plugin methods are allowed to C<around>, C<before>, C<after>
	51	their consuming classes, so it is important to watch for load order as plugins can
	52	and will overload each other. You may also add attributes through has.
	53
06c9b714	54	Please note that when you load at runtime you lose the ability to wrap C<BUILD>
cb251ecc	55	and roles using C<has> will not go through compile time checks like C<required>
9bef9c02	56	and <default>.
9bef9c02	57
9843fa64	58	Even though C<override> will work , I STRONGLY discourage it's use
421e9f8d	59	and a warning will be thrown if you try to use it.
cb251ecc	60	This is closely linked to the way multiple roles being applied is handled and is not
421e9f8d	61	likely to change. C<override> bevavior is closely linked to inheritance and thus will
	62	likely not work as you expect it in multiple inheritance situations. Point being,
	63	save yourself the headache.
	64
	65	=head1 How plugins are loaded
	66
9bef9c02	67	When roles are applied at runtime an anonymous class will wrap your class and
421e9f8d	68	C<$self-E<gt>blessed> and C<ref $self> will no longer return the name of your object,
9bef9c02	69	they will instead return the name of the anonymous class created at runtime.
9bef9c02	70	See C<_original_class_name>.
421e9f8d	71
9843fa64	72	=head1 Notice regarding extensions.
	73
	74	Because I have been able to identify a real-world use case for the extension mechanism
	75	I have decided to deprecate it and remove it in the next major release.
	76
9bef9c02	77	=head1 Usage
421e9f8d	78
9bef9c02	79	For a simple example see the tests included in this distribution.
421e9f8d	80
	81	=head1 Attributes
	82
	83	=head2 _plugin_ns
	84
	85	String. The prefix to use for plugin names provided. MyApp::Plugin is sensible.
	86
	87	=head2 _plugin_ext
	88
	89	Boolean. Indicates whether we should attempt to load plugin extensions.
	90	Defaults to true;
	91
	92	=head2 _plugin_ext_ns
	93
9843fa64	94	B<THIS FUNCTIONALITY HAS BEEN DEPRECATED AND WILL GO AWAY.> If you use
	95	this, please email me, but I am fairly sure that nobody uses this at
	96	all and it's just adding bloat and making things kind of ugly.
	97
421e9f8d	98	String. The namespace plugin extensions have. Defaults to 'ExtensionFor'.
	99
	100	This means that is _plugin_ns is "MyApp::Plugin" and _plugin_ext_ns is
	101	"ExtensionFor" loading plugin "Bar" would search for extensions in
9843fa64	102	"MyApp::Plugin::Bar::ExtensionFor::*".
421e9f8d	103
208f7b27	104	=head2 _plugin_app_ns
421e9f8d	105
208f7b27	106	ArrayRef, Accessor automatically dereferences into array on a read call.
	107	By default will be filled with the class name and it's prescedents, it is used
	108	to determine which directories to look for plugins as well as which plugins
	109	take presedence upon namespace collitions. This allows you to subclass a pluggable
	110	class and still use it's plugins while using yours first if they are available.
421e9f8d	111
421e9f8d	112	=cut
421e9f8d	113
208f7b27	114	=head2 _plugin_locator
	115
	116	An automatically built instance of L<Module::Pluggable::Object> used to locate
	117	available plugins.
	118
	119	=cut
421e9f8d	120
208f7b27	121	#--------#---------#---------#---------#---------#---------#---------#---------#
421e9f8d	122
9843fa64	123	has _plugin_ns => (is => 'rw', required => 1, isa => 'Str',
208f7b27	124	default => 'Plugin');
208f7b27	125	has _plugin_ext => (is => 'rw', required => 1, isa => 'Bool',
9843fa64	126	default => 1);
	127	has _plugin_ext_ns => (is => 'rw', required => 1, isa => 'Str',
	128	default => 'ExtensionFor');
	129	has _plugin_loaded => (is => 'rw', required => 1, isa => 'HashRef',
	130	default => sub{ {} });
	131	has _plugin_app_ns => (is => 'rw', required => 1, isa => 'ArrayRef', lazy => 1,
	132	auto_deref => 1,
0a369903	133	default => sub{ shift->_build_plugin_app_ns },
9843fa64	134	trigger => sub{ $_[0]->_clear_plugin_locator
0a369903	135	if $_[0]->_has_plugin_locator; },
0a369903	136	);
9843fa64	137	has _plugin_locator => (is => 'rw', required => 1, lazy => 1,
	138	isa => 'Module::Pluggable::Object',
	139	clearer => '_clear_plugin_locator',
0a369903	140	predicate => '_has_plugin_locator',
0a369903	141	default => sub{ shift->_build_plugin_locator });
421e9f8d	142
421e9f8d	143	#--------#---------#---------#---------#---------#---------#---------#---------#
	144
	145	=head1 Public Methods
	146
485dad3c	147	=head2 load_plugins @plugins
485dad3c	148
421e9f8d	149	=head2 load_plugin $plugin
421e9f8d	150
9843fa64	151	Load the apropriate role for C<$plugin> as well as any extensions it provides
9843fa64	152	if extensions are enabled.
421e9f8d	153
	154	=cut
	155
485dad3c	156	sub load_plugins {
	157	my ($self, @plugins) = @_;
	158	die("You must provide a plugin name") unless @plugins;
421e9f8d	159
421e9f8d	160	my $loaded = $self->_plugin_loaded;
421e9f8d	161
485dad3c	162	my @load = grep { not exists $loaded->{$_} } @plugins;
421e9f8d	163
485dad3c	164	my @roles = map { $self->_role_from_plugin($_) } @load;
421e9f8d	165
485dad3c	166	if ( $self->_load_and_apply_role(@roles) ) {
485dad3c	167	@{ $loaded }{@load} = @roles;
9843fa64	168
485dad3c	169	if ( $self->_plugin_ext ) {
	170	$self->load_plugin_ext($_) for @load;
	171	}
9843fa64	172
485dad3c	173	return 1;
	174	} else {
	175	return;
	176	}
	177	}
9843fa64	178
9843fa64	179
485dad3c	180	sub load_plugin {
9843fa64	181	my $self = shift;
485dad3c	182	$self->load_plugins(@_);
9843fa64	183	}
9843fa64	184
421e9f8d	185
12d4facb	186	=head2 load_plugin_ext
421e9f8d	187
9843fa64	188	B<THIS FUNCTIONALITY HAS BEEN DEPRECATED AND WILL GO AWAY.> If you use
	189	this, please email me, but I am fairly sure that nobody uses this at
	190	all and it's just adding bloat and making things kind of ugly.
	191
	192	Will load any extensions for a particular plugin. This should be called
421e9f8d	193	automatically by C<load_plugin> so you don't need to worry about it.
9843fa64	194	It basically attempts to load any extension that exists for a plugin
421e9f8d	195	that is already loaded. The only reason for using this is if you want to
	196	keep _plugin_ext as false and only load extensions manually, which I don't
	197	recommend.
	198
	199	=cut
	200
	201	sub load_plugin_ext{
	202	my ($self, $plugin) = @_;
	203	die("You must provide a plugin name") unless $plugin;
208f7b27	204	my $role = $self->_plugin_loaded->{$plugin};
421e9f8d	205
	206	# $p for plugin, $r for role
	207	while( my($p,$r) = each %{ $self->_plugin_loaded }){
421e9f8d	208
9843fa64	209	my $ext = join "::", $role, $self->_plugin_ext_ns, $p;
	210	if( $plugin =~ /^\+(.*)/ ){
	211	eval{ $self->_load_and_apply_role( $ext ) };
	212	} else{
	213	$self->_load_and_apply_role( $ext ) if
	214	grep{ /^${ext}$/ } $self->_plugin_locator->plugins;
208f7b27	215	}
9843fa64	216
	217	#go back to prev loaded modules and load extensions for current module?
	218	#my $ext2 = join "::", $r, $self->_plugin_ext_ns, $plugin;
	219	#$self->_load_and_apply_role( $ext2 )
	220	# if Class::Inspector->installed($ext2);
421e9f8d	221	}
	222	}
	223
9bef9c02	224	=head2 _original_class_name
421e9f8d	225
9bef9c02	226	Because of the way roles apply C<$self-E<gt>blessed> and C<ref $self> will
	227	no longer return what you expect. Instead use this class to get your original
	228	class name.
421e9f8d	229
	230	=cut
	231
9bef9c02	232	sub _original_class_name{
421e9f8d	233	my $self = shift;
9bef9c02	234	return (grep {$_ !~ /^Moose::/} $self->meta->class_precedence_list)[0];
421e9f8d	235	}
421e9f8d	236
9bef9c02	237
	238	=head1 Private Methods
	239
9843fa64	240	There's nothing stopping you from using these, but if you are using them
9843fa64	241	for anything thats not really complicated you are probably doing
9bef9c02	242	something wrong. Some of these may be inlined in the future if performance
	243	becomes an issue (which I doubt).
	244
421e9f8d	245	=head2 _role_from_plugin $plugin
421e9f8d	246
9843fa64	247	Creates a role name from a plugin name. If the plugin name is prepended
421e9f8d	248	with a C<+> it will be treated as a full name returned as is. Otherwise
9843fa64	249	a string consisting of C<$plugin> prepended with the C<_plugin_ns>
208f7b27	250	and the first valid value from C<_plugin_app_ns> will be returned. Example
9843fa64	251
9843fa64	252	#assuming appname MyApp and C<_plugin_ns> 'Plugin'
421e9f8d	253	$self->_role_from_plugin("MyPlugin"); # MyApp::Plugin::MyPlugin
	254
	255	=cut
	256
	257	sub _role_from_plugin{
	258	my ($self, $plugin) = @_;
	259
208f7b27	260	return $1 if( $plugin =~ /^\+(.*)/ );
	261
	262	my $o = join '::', $self->_plugin_ns, $plugin;
9843fa64	263	#Father, please forgive me for I have sinned.
208f7b27	264	my @roles = grep{ /${o}$/ } $self->_plugin_locator->plugins;
9843fa64	265
e091956e	266	croak("Unable to locate plugin '$plugin'") unless @roles;
208f7b27	267	return $roles[0] if @roles == 1;
9843fa64	268
208f7b27	269	my $i = 0;
0a369903	270	my %presedence_list = map{ $i++; "${_}::${o}", $i } $self->_plugin_app_ns;
9843fa64	271
208f7b27	272	@roles = sort{ $presedence_list{$a} <=> $presedence_list{$b}} @roles;
421e9f8d	273
9843fa64	274	return shift @roles;
421e9f8d	275	}
421e9f8d	276
485dad3c	277	=head2 _load_and_apply_role @roles
421e9f8d	278
9bef9c02	279	Require C<$role> if it is not already loaded and apply it. This is
9bef9c02	280	the meat of this module.
421e9f8d	281
	282	=cut
	283
	284	sub _load_and_apply_role{
485dad3c	285	my ($self, @roles) = @_;
485dad3c	286	die("You must provide a role name") unless @roles;
421e9f8d	287
485dad3c	288	foreach my $role ( @roles ) {
	289	eval { Class::MOP::load_class($role) };
	290	confess("Failed to load role: ${role} $@") if $@;
421e9f8d	291
485dad3c	292	carp("Using 'override' is strongly discouraged and may not behave ".
485dad3c	293	"as you expect it to. Please use 'around'")
9843fa64	294	if scalar keys %{ $role->meta->get_override_method_modifiers_map };
485dad3c	295	}
	296
	297	Moose::Util::apply_all_roles( $self, @roles );
421e9f8d	298
	299	return 1;
	300	}
	301
208f7b27	302	=head2 _build_plugin_app_ns
	303
	304	Automatically builds the _plugin_app_ns attribute with the classes in the
	305	class presedence list that are not part of Moose.
	306
	307	=cut
	308
	309	sub _build_plugin_app_ns{
	310	my $self = shift;
	311	my @names = (grep {$_ !~ /^Moose::/} $self->meta->class_precedence_list);
	312	return \@names;
	313	}
	314
	315	=head2 _build_plugin_locator
	316
	317	Automatically creates a L<Module::Pluggable::Object> instance with the correct
	318	search_path.
	319
	320	=cut
	321
	322	sub _build_plugin_locator{
	323	my $self = shift;
	324
	325	my $locator = Module::Pluggable::Object->new
9843fa64	326	( search_path =>
	327	[ map { join '::', ($_, $self->_plugin_ns) } $self->_plugin_app_ns ]
	328	);
	329	return $locator;
208f7b27	330	}
208f7b27	331
12d4facb	332	=head2 meta
	333
	334	Keep tests happy. See L<Moose>
	335
	336	=cut
	337
421e9f8d	338	1;
	339
	340	__END__;
	341
	342	=head1 SEE ALSO
	343
9bef9c02	344	L<Moose>, L<Moose::Role>, L<Class::Inspector>
421e9f8d	345
	346	=head1 AUTHOR
	347
	348	Guillermo Roditi, <groditi@cpan.org>
	349
	350	=head1 BUGS
	351
	352	Holler?
	353
	354	Please report any bugs or feature requests to
	355	C<bug-moosex-object-pluggable at rt.cpan.org>, or through the web interface at
	356	L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=MooseX-Object-Pluggable>.
	357	I will be notified, and then you'll automatically be notified of progress on
	358	your bug as I make changes.
	359
	360	=head1 SUPPORT
	361
	362	You can find documentation for this module with the perldoc command.
	363
	364	perldoc MooseX-Object-Pluggable
	365
	366	You can also look for information at:
	367
	368	=over 4
	369
	370	=item * AnnoCPAN: Annotated CPAN documentation
	371
	372	L<http://annocpan.org/dist/MooseX-Object-Pluggable>
	373
	374	=item * CPAN Ratings
	375
	376	L<http://cpanratings.perl.org/d/MooseX-Object-Pluggable>
	377
	378	=item * RT: CPAN's request tracker
	379
	380	L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=MooseX-Object-Pluggable>
	381
	382	=item * Search CPAN
	383
	384	L<http://search.cpan.org/dist/MooseX-Object-Pluggable>
	385
	386	=back
	387
	388	=head1 ACKNOWLEDGEMENTS
	389
	390	=over 4
	391
	392	=item #Moose - Huge number of questions
	393
	394	=item Matt S Trout <mst@shadowcatsystems.co.uk> - ideas / planning.
	395
	396	=item Stevan Little - EVERYTHING. Without him this would have never happened.
	397
	398	=back
	399
	400	=head1 COPYRIGHT
	401
	402	Copyright 2007 Guillermo Roditi. All Rights Reserved. This is
	403	free software; you may redistribute it and/or modify it under the same
	404	terms as Perl itself.
	405
	406	=cut