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418
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1 package IMPL::Config::YAMLConfig;
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2 use strict;
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3
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419
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4 use IMPL::lang qw(:base);
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5 use IMPL::Exception();
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6 use YAML::XS();
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7
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421
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8 use IMPL::declare {
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9 require => {
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10 ReferenceDescriptor => 'IMPL::Config::ReferenceDescriptor',
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11 ServiceDescriptor => 'IMPL::Config::ServiceDescriptor',
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12 ValueDescriptor => 'IMPL::Config::ValueDescriptor'
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13 },
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14 base => [
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15 'IMPL::Object' => undef
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16 ],
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17 props => [
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18 container => 'ro'
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19 ]
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20 };
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419
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21
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421
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22 sub CTOR {
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23 my ( $this, $container ) = @_;
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24 die IMPL::InvalidArgumentException('container')
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25 unless $container;
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26 $this->container($container);
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27 }
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28
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29 sub LoadConfiguration {
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30 my ( $this, $file ) = @_;
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31
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32 $this->Configure(
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33 isscalar($file)
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34 ? YAML::XS::Load( ${$file} )
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35 : YAML::XS::LoadFile($file)
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36 );
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419
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37 }
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38
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418
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39 sub Configure {
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421
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40 my ( $this, $config ) = @_;
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41
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42 die IMPL::InvalidArgumentException('config')
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43 unless ishash($config);
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44
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45 my $container = $this->container;
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46 foreach my $item ( @{ $this->ParseServices( $config->{services} ) } ) {
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47 $container->Register( $item->{role}, $item->{descriptor} );
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48 }
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49
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50 return $container;
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51 }
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52
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53 sub ParseServices {
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54 my ( $this, $services ) = @_;
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55
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56 return $services
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57 ? [
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58 map {
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59 {
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60 role => delete $_->{name},
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61 descriptor => $this->ParseDescriptor($_)
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62 };
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63 } @$services
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64 ]
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65 : undef;
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66 }
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67
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68 sub ParseDescriptor {
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69 my ( $this, $data ) = @_;
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70
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71 my %opts = ( onwer => $this->container() );
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72
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73 if ( my $type = $data->{'$type'} ) {
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74 $opts{services} = $this->ParseServices( $data->{services} );
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75 $opts{type} = $type;
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76 $opts{args} = $this->ParseDescriptor( $data->{params} )
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77 if $data->{params};
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78 $opts{norequire} = $data->{norequire};
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79 $opts{activation} = $data->{activation};
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419
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80
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421
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81 return ServiceDescriptor->new(%opts);
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82 }
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83 elsif ( my $dep = $data->{'$ref'} ) {
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84 $opts{services} = $this->ParseServices( $data->{services} );
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85 $opts{lazy} = $data->{lazy};
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86 $opts{optional} = $data->{optional};
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87 $opts{default} = $this->ParseDescriptor( $data->{default} )
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88 if exists $data->{default};
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89
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90 return ReferenceDesriptor->new( $dep, %opts );
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91 }
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92 elsif ( my $value = $data->{'$value'} ) {
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93 my ( $parsed, $raw ) = $this->ParseValue($value);
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94 $opts{services} = $this->ParseServices( $data->{services} );
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95 $opts{raw} = $raw;
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96 return ValueDescriptor->new( $parsed, %opts );
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97 }
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98 else {
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99 my ( $parsed, $raw ) = $this->ParseValue($value);
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100 $opts{raw} = $raw;
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101 return ValueDescriptor->new( $parsed, %opts );
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102 }
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103 }
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104
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105 sub ParseValue {
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106 my ( $this, $value ) = @_;
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107
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108 my $raw = 1;
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109
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110 if ( ishash($value) ) {
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111 return ( $this->ParseDescriptor($value), 0 )
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112 if grep exists $value->{$_}, qw($type $ref $value);
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113
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114 my %res;
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115 while ( my ( $k, $v ) = each %$value ) {
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116 my ( $parsed, $flag ) = $this->ParseValue($v);
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117 $res{$k} = $parsed;
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118 $raw &&= $flag;
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119 }
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120 return ( \%res, $raw );
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121 }
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122 elsif ( isarray($value) ) {
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123 return (
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124 [
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125 map {
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126 my ( $parsed, $flag ) = $this->ParseValue($_);
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127 $raw &&= $flag;
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128 return $parsed;
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129 } @$value
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130 ],
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131 $raw
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132 );
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133 }
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134 else {
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135 return ($value, 1);
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136 }
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418
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137 }
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138
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139 1;
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140
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141 __END__
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142
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143 =pod
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144
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421
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145 =head1 NAME
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146
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147 =head1 SYNOPSIS
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148
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149 =
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418
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150
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419
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151 =cut
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