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annotate Lib/IMPL/Config/Activator.pm @ 251:9f394b27dccf

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require can handle recursive module references
author sergey
date Fri, 16 Nov 2012 16:44:16 +0400
parents c8fe3f84feba
children 15d87ef41764
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1 package IMPL::Config::Activator;
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2 use strict;
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3
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4 use parent qw(IMPL::Object IMPL::Object::Autofill IMPL::Object::PublicSerializable);
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5 use IMPL::Class::Property;
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6
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7 BEGIN {
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8 public property factory => prop_all;
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9 public property parameters => prop_all;
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10 public property object => prop_get | owner_set;
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11 }
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12
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13 __PACKAGE__->PassThroughArgs;
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14
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15 sub CTOR {
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16 my $this = shift;
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17
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18 die new IMPL::Exception("A factory parameter is required") unless $this->factory;
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19
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20 }
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21
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22 sub _is_class {
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23 no strict 'refs';
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24 UNIVERSAL::can($_[0],'new') ? 1 : 0;
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25 }
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26
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27 sub activate {
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28 my $this = shift;
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29
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30 unless ($this->object) {
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31 my @args;
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32
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33 my $params = $this->parameters;
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34 if (UNIVERSAL::isa($params,'HASH')) {
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35 while ( my ($key,$value) = each %$params ) {
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36 push @args,$key, UNIVERSAL::isa($value,'IMPL::Config::Activator') ? $value->activate : $value;
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37 }
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38 } elsif (UNIVERSAL::isa($params,'ARRAY')) {
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39 push @args, map UNIVERSAL::isa($_,'IMPL::Config::Activator') ? $_->activate : $_, @$params;
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40 } else {
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41 push @args, UNIVERSAL::isa($params,'IMPL::Config::Activator') ? $params->activate : $params;
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42 }
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44 push @args, map UNIVERSAL::isa($_,'IMPL::Config::Activator') ? $_->activate : $_, @_ if @_;
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46 my $factory = $this->factory;
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47 eval "require $factory; 1;" unless (ref $factory or _is_class($factory));
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49 return $this->object($factory->new(@args));
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50 } else {
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51 return $this->object;
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52 }
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53 }
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55 1;