annotate lib/IMPL/DOM/Schema/ValidationError.pm @ 410:9335cf010b23 ref20150831

refactoring
author cin
date Mon, 14 Sep 2015 01:11:53 +0300
parents c6e90e02dd17
children
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1 package IMPL::DOM::Schema::ValidationError;
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2 use strict;
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3 use warnings;
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4
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5 use overload
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6 '""' => \&toString,
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7 'fallback' => 1;
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8
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9 use IMPL::lang qw(is);
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10 use IMPL::Const qw(:prop);
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11 use IMPL::declare {
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12 require => {
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13 Label => '-IMPL::DOM::Schema::Label'
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14 },
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15 base => [
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16 'IMPL::Object' => undef
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17 ],
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18 props => [
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19 node => PROP_RO | PROP_DIRECT,
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20 schemaNode => PROP_RO | PROP_DIRECT,
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21 schemaType => PROP_RO | PROP_DIRECT,
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22 parent => PROP_RO | PROP_DIRECT,
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23 message => PROP_RO | PROP_DIRECT
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24 ]
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25 };
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26 use IMPL::Resources::Format qw(FormatMessage);
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27
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28 sub CTOR {
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29 my ($this,%args) = @_;
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30
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31 $this->{$node} = $args{node};
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32 $this->{$schemaNode} = $args{schemaNode} if $args{schemaNode};
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33 $this->{$schemaType} = $args{schemaType} if $args{schemaType};
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34
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35 if ($args{parent}) {
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36 $this->{$parent} = $args{parent};
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37 } elsif ($args{node}) {
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38 $this->{$parent} = $args{node}->parentNode;
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39 } else {
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40 die new IMPL::InvalidArgumentException("A 'parent' or a 'node' parameter is required");
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41 }
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42
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43 if ($args{message}) {
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44 $this->{$message} = is($args{message},Label) ? $args{message}->Format(\%args) : FormatMessage($args{message}, \%args) ;
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45 }
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46
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47 }
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48
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49 sub toString {
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50 (my $this) = @_;
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51 return $this->message;
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52 }
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53
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54 1;
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55
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56 __END__
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57
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58 =pod
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59
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60 =head1 NAME
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61
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62 C<IMPL::DOM::Schema::ValidationError> - Описывает ошибку в документе.
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63
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64 =head1 DESCRIPTION
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65
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66 При проверке документа на ошибки формирования возвращается массив с объектами
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67 C<IMPL::DOM::Schema::ValidationError>, каждая из которых описывает одну ошибку
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68 в документе.
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69
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70 С помощью данного объекта осущетсвляется привязка элемента схемы, элемента документа
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71 и сообщения о причине возникновения ошибки.
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72
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73 Часть ошибок, таких как проверка содержимого на регулярные выражения, привязаны
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74 непосредственно к элементу. Но есть ошибки которые привязываются к родительскому
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75 контейнеру, например отсутсвие обязательного элемента. В таком случае ошибка
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76 содержит свойство C<parent> и по свойству C<source> можно определить элемент
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77 (например его имя), к которому относится ошибка.
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78
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79 =head1 MEMBERS
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80
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81 =over
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82
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83 =item C<[get] node>
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84
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85 Узел в документе который привел к ошибке. Как правило это либо простые узлы, либо
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86 узлы, которые не могут присутствоать в данном месте по схеме.
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87
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88 Данное свойство может быть C<undef>.
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89
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90 =item C<[get] parent>
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91
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92 Родительский узел в котором произошла ошибка. Используется в случаях, когда C<node>
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93 не указан, например, если по схеме должен существовать дочерний узел с определенным
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94 именем, а в реальном документе его нет.
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95
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96 Также это свойство может использоваться при формировании сообщения.
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97
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98 =item C<[get] schema>
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99
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100 Схема для C<Node> или узла который должен присутсвовать если C<Node> не задан.
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101
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102 =item C<[get] source>
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103
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104 Схема, проверка которой привела к возникновению ошибки. Поскольку схемы могут
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105 использовать ссылки, то данное свойство нужно для получения схемы узла, а не
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106 схемы его типа.
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107
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108 Тоесть проверка схемы узла C<IMPL::DOM::Schema::Node> приводит к проверке схемы
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109 типа, например, C<IMPL::DOM::Schema::ComplexType>, а свойство C<Source> будет
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110 указывать именно на C<IMPL::DOM::Schema::Node>.
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111
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112 =item C<[get] message>
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113
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114 Возвращает форматированное сообщение об ошибке.
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115
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116 =item C<toString()>
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117
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118 Преобразует ошибку к строке, возвращает значение свойства C<Message>
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119
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120 =back
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121
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122 =head1 REMARKS
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123
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124 =begin code
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125
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126 my $doc = IMPL::DOM::XMLReader->LoadDocument('data.xml');
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127 my $schema = IMPL::DOM::Schema->LoadSchema('schema.xml');
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128
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129 my @errors = $schema->Validate($doc);
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130
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131 my $node = $doc->selectSingleNode('user','name');
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132
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133 # Получаем все ошибки относящиеся к данному узлу
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134 my @nodeErrors = grep { ($_->node || $_->parent) == $node } @errors;
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135
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136 =end code
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137
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138 =cut