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annotate lib/IMPL/Config/Container.pm @ 425:c27434cdd611 ref20150831

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author cin
date Tue, 03 Apr 2018 19:30:01 +0300
parents b0481c071bea
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1 package IMPL::Config::Container;
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2 use strict;
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3 use mro;
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4 use Scalar::Util qw(blessed);
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5 use IMPL::Exception();
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6 use IMPL::lang qw(:base);
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7 use IMPL::declare {
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8 require => {
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9 Descriptor => 'IMPL::Config::Descriptor',
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10 ActivationContext => 'IMPL::Config::ActivationContext',
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11 Hierarchy => 'IMPL::Config::Hierarchy',
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12 Bag => 'IMPL::Config::Bag',
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13 Loader => 'IMPL::Code::Loader'
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14 },
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15 base => [
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16 'IMPL::Object' => undef,
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17 'IMPL::Object::Disposable' => undef
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18 ],
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19 props => [
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20 roles => 'r',
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21 services => 'r',
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22 serviceCache => 'r',
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23 instances => 'r',
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24 parent => 'r',
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25 root => 'r',
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26 loader => 'r'
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27 ]
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28 };
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29
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30 my $nextRoleId = 1;
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31
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32 sub CTOR {
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33 my ( $this, $parent, %opts ) = @_;
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34
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35 $this->instances( {} );
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36
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37 $this->loader( $opts{loader} || Loader->safe );
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38
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39 if ($parent) {
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40 $this->roles( Hierarchy->new( $parent->roles ) );
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41 $this->services( Bag->new( $parent->services ) );
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42 $this->parent($parent);
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43 $this->root( $parent->root );
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44 }
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45 else {
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46 $this->roles( Hierarchy->new() );
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47 $this->services( Bag->new() );
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48 $this->root($this);
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49 }
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50
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51 $this->services->tag($this);
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52 }
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53
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54 sub Dispose {
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55 my ($this) = @_;
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56
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57 my $d;
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58 foreach my $v ( values %{ $this->instances } ) {
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59 if ( $d = blessed($v) && $v->can('Dispose') ) {
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60 &$d($v);
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61 }
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62 }
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63
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64 $this->next::method();
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65 }
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66
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67 sub Require {
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68 my ( $this, $class ) = @_;
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69
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70 return $this->loader->Require($class);
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71 }
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72
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73 sub Register {
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74 my ( $this, $role, $service ) = @_;
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75
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76 die IMPL::InvalidArgumentException->new('service')
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77 unless is( $service, Descriptor );
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78 $this->services->Register( $this->GetLinearRoleHash($role), $service );
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79 }
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80
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81 sub GetLinearRoleHash {
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82 my ( $this, $role ) = @_;
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83
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84 die IMPL::InvalidArgumentException->new(
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85 role => 'The argument is required' )
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86 unless $role;
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87
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88 if ( isarray($role) ) {
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89 my $tempRole = "unnamed-" . $nextRoleId++;
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90 $this->roles->AddRole( $tempRole, $role );
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91 $role = $tempRole;
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92 }
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93
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94 $this->roles->GetLinearRoleHash($role);
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95 }
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96
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97 sub Resolve {
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98 my ( $this, $role ) = @_;
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99
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100 my $descriptor = $this->services->Resolve($role);
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101
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102 return ActivationContext->new($this)->Activate($descriptor)
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103 if $descriptor;
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104 }
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105
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106 sub ResolveAll {
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107 my ( $this, $role, %opts ) = @_;
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108
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109 my $all = $this->services->ResolveAll($role);
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110
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111 my $context;
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112
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113 my @result;
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114
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115 foreach my $service (@$all) {
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116 $context = ActivationContext->new($this)
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117 unless $context && $opts{shared};
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118
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119 push @result, $context->Activate($service);
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120 }
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121
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122 return \@result;
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123 }
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124
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125 1;
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126
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127 __END__
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128
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129 =pod
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130
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131 =head1 NAME
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132
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133 C<IMPL::Config::Container> - dependency injection container
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134
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135 =head1 SYNOPSIS
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136
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137 =head2 METHODS
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138
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139 =head3 Resolve($role)
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140
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141 =head3 ResolveAll($role, shared => $useSharedContext)
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142
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143 =head3 Register($role, $service)
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144
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145 =cut