Mercurial > pub > Impl
annotate Lib/IMPL/Web/Application/Action.pm @ 227:70ad6bc20908
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| author | sergey |
|---|---|
| date | Fri, 07 Sep 2012 16:32:17 +0400 |
| parents | c8fe3f84feba |
| children | 47f77e6409f7 |
| rev | line source |
|---|---|
| 52 | 1 package IMPL::Web::Application::Action; |
| 55 | 2 use strict; |
| 52 | 3 |
| 166 | 4 use parent qw(IMPL::Object IMPL::Object::Autofill); |
| 52 | 5 |
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6 __PACKAGE__->PassThroughArgs; |
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7 |
| 52 | 8 use IMPL::Class::Property; |
| 206 | 9 use Carp qw(carp); |
| 52 | 10 |
| 11 BEGIN { | |
| 194 | 12 public property application => prop_get | owner_set; |
| 13 public property query => prop_get | owner_set; | |
| 14 public property response => prop_get | owner_set; | |
| 15 public property responseFactory => prop_get | owner_set; | |
| 16 public property context => prop_get | owner_set; | |
| 17 private property _entryPoint => prop_all; | |
| 55 | 18 } |
| 19 | |
| 65 | 20 sub CTOR { |
| 194 | 21 my ($this) = @_; |
| 22 | |
| 23 $this->responseFactory('IMPL::Web::Application::Response') unless $this->responseFactory; | |
| 24 $this->response( $this->responseFactory->new(query => $this->query) ); | |
| 25 $this->context({}); | |
| 65 | 26 } |
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27 |
| 55 | 28 sub Invoke { |
| 194 | 29 my ($this) = @_; |
| 30 | |
| 31 if ($this->_entryPoint) { | |
| 32 $this->_entryPoint->(); | |
| 33 } else { | |
| 34 die new IMPL::InvalidOperationException("At least one handler is required"); | |
| 35 } | |
| 55 | 36 } |
| 37 | |
| 65 | 38 sub ReinitResponse { |
| 194 | 39 my ($this) = @_; |
| 40 | |
| 41 die new IMPL::InvalidOperationException("Response already sent") if $this->response->isHeaderPrinted; | |
| 42 | |
| 43 $this->response->Discard; | |
| 44 $this->response($this->responseFactory->new(query => $this->query)); | |
| 65 | 45 } |
| 46 | |
| 55 | 47 sub ChainHandler { |
| 194 | 48 my ($this,$handler) = @_; |
| 49 | |
| 206 | 50 carp "deprecated, use Application->handlers instead"; |
| 51 | |
| 194 | 52 my $delegateNext = $this->_entryPoint(); |
| 53 | |
| 54 if (ref $handler eq 'CODE') { | |
| 55 $this->_entryPoint( sub { | |
| 56 $handler->($this,$delegateNext); | |
| 57 } ); | |
| 58 } elsif (ref $handler and UNIVERSAL::isa($handler,'IMPL::Web::QueryHandler')) { | |
| 59 $this->_entryPoint( sub { | |
| 60 $handler->Invoke($this,$delegateNext); | |
| 61 } ); | |
| 62 } elsif ($handler and not ref $handler) { | |
| 63 | |
| 64 if (my $method = $this->can($handler) ) { | |
| 65 $this->_entryPoint( sub { | |
| 66 $method->($this,$delegateNext); | |
| 67 } ); | |
| 68 } else { | |
| 69 { | |
| 70 no strict 'refs'; | |
| 71 eval "require $handler; 1;" or die new IMPL::InvalidArgumentException("An invalid handler supplied",$handler,"Failed to load module") unless keys %{"${handler}::"}; | |
| 72 } | |
| 73 | |
| 74 if (UNIVERSAL::isa($handler,'IMPL::Web::QueryHandler')) { | |
| 75 $this->_entryPoint( sub { | |
| 76 $handler->Invoke($this,$delegateNext); | |
| 77 } ); | |
| 78 } else { | |
| 79 die new IMPL::InvalidArgumentException("An invalid handler supplied",$handler); | |
| 80 } | |
| 81 } | |
| 82 } else { | |
| 83 die new IMPL::InvalidArgumentException("An invalid handler supplied",$handler); | |
| 84 } | |
| 85 | |
| 52 | 86 } |
| 87 | |
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88 sub cookie { |
| 194 | 89 my ($this,$name,$rx) = @_; |
| 90 | |
| 91 $this->_launder(scalar( $this->query->cookie($name) ), $rx ); | |
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92 } |
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93 |
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94 sub param { |
| 194 | 95 my ($this,$name,$rx) = @_; |
| 96 | |
| 97 $this->_launder(scalar( $this->query->param($name) ), $rx ); | |
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98 } |
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99 |
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100 sub _launder { |
| 194 | 101 my ($this,$value,$rx) = @_; |
| 102 | |
| 103 if ( $value ) { | |
| 104 if ($rx) { | |
| 105 if ( my @result = ($value =~ m/$rx/) ) { | |
| 106 return @result > 1 ? \@result : $result[0]; | |
| 107 } else { | |
| 108 return undef; | |
| 109 } | |
| 110 } else { | |
| 111 return $value; | |
| 112 } | |
| 113 } else { | |
| 114 return undef; | |
| 115 } | |
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116 } |
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117 |
| 52 | 118 1; |
| 119 | |
| 120 __END__ | |
| 121 | |
| 122 =pod | |
| 123 | |
| 67 | 124 =head1 NAME |
| 125 | |
| 180 | 126 C<IMPL::Web::Application::Action> - Обертка вокруг C<CGI> запроса. |
| 67 | 127 |
| 52 | 128 =head1 DESCRIPTION |
| 129 | |
| 67 | 130 C<[Infrastructure]> |
| 206 | 131 Свзяывет CGI запрос, приложение, орабатывающее его и ответ, который будет отправлен клиенту. |
| 52 | 132 |
| 67 | 133 =head1 MEMBERS |
| 134 | |
| 135 =head2 PROPERTIES | |
| 136 | |
| 137 =over | |
| 138 | |
| 139 =item C< [get] application> | |
| 140 | |
| 180 | 141 Экземпляр приложения создавшего текущий объект |
| 67 | 142 |
| 143 =item C< [get] query > | |
| 144 | |
| 180 | 145 Экземпляр C<CGI> запроса |
| 67 | 146 |
| 147 =item C< [get] response > | |
| 148 | |
| 180 | 149 Ответ на C<CGI> заспрос C<IMPL::Web::Application::Response> |
| 67 | 150 |
| 151 =item C< [get] responseFactory > | |
| 152 | |
| 180 | 153 Фабрика ответов на запрос, используется для создания нового ответа |
| 154 либо при конструировании текущего объекта C<IMPL::Web::Application::Action>, | |
| 155 либо при вызове метода C<ReinitResponse> у текущего объекта. | |
| 67 | 156 |
| 180 | 157 По умолчанию имеет значение C<IMPL::Web::Application::Response> |
| 67 | 158 |
| 159 =back | |
| 160 | |
| 161 =head2 METHODS | |
| 162 | |
| 163 =over | |
| 164 | |
| 165 =item C< ReinitResponse() > | |
| 166 | |
| 180 | 167 Отмена старого ответа C<response> и создание вместо него нового. |
| 67 | 168 |
| 180 | 169 Данная операция обычно проводится при обработке ошибок, когда |
| 170 уже сформированный ответ требуется отменить. Следует заметить, | |
| 171 что эта операция не возможна, если ответ частично или полностью | |
| 172 отправлен клиенту. Тогда возникает исключение C<IMPL::InvalidOperationException>. | |
| 67 | 173 |
| 180 | 174 =cut |