Mercurial > pub > Impl
annotate Lib/IMPL/Web/Application.pm @ 71:d92d5ddaf524
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| author | wizard |
|---|---|
| date | Thu, 25 Mar 2010 13:05:18 +0300 |
| parents | 9f5795a10939 |
| children | 2f31ecabe9ea |
| rev | line source |
|---|---|
| 49 | 1 package IMPL::Web::Application; |
| 2 use strict; | |
| 3 use warnings; | |
| 4 | |
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5 use base qw(IMPL::Config IMPL::Object::Singleton); |
| 58 | 6 |
| 7 require IMPL::Web::Application::Action; | |
| 8 require IMPL::Web::Application::Response; | |
| 9 | |
| 49 | 10 use IMPL::Class::Property; |
| 57 | 11 use CGI; |
| 49 | 12 |
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13 __PACKAGE__->PassThroughArgs; |
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14 |
| 49 | 15 BEGIN { |
| 52 | 16 public property handlerError => prop_all; |
| 67 | 17 public property actionFactory => prop_all; |
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18 public property handlersQuery => prop_all | prop_list; |
| 65 | 19 public property responseCharset => prop_all; |
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20 public property options => prop_all; |
| 49 | 21 } |
| 22 | |
| 23 # custom factory | |
| 24 sub new { | |
| 25 my ($self,$file) = @_; | |
| 26 | |
| 27 return $self->LoadXMLFile($file); | |
| 28 } | |
| 29 | |
| 62 | 30 sub CTOR { |
| 31 my ($this) = @_; | |
| 32 | |
| 67 | 33 $this->actionFactory('IMPL::Web::Application::Action') unless $this->actionFactory; |
| 65 | 34 $this->responseCharset('utf-8') unless $this->responseCharset; |
| 62 | 35 } |
| 36 | |
| 49 | 37 sub Run { |
| 38 my ($this) = @_; | |
| 39 | |
| 58 | 40 while (my $query = $this->FetchRequest()) { |
| 41 | |
| 67 | 42 my $action = $this->actionFactory->new( |
| 62 | 43 query => $query, |
| 58 | 44 application => $this, |
| 65 | 45 ); |
| 46 | |
| 47 $action->response->charset($this->responseCharset); | |
| 58 | 48 |
| 49 $action->ChainHandler($_) foreach $this->handlersQuery; | |
| 50 | |
| 51 $action->Invoke(); | |
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53 $action->response->Complete; |
| 49 | 54 } |
| 55 } | |
| 56 | |
| 57 | 57 { |
| 58 my $hasFetched = 0; | |
| 59 | |
| 60 sub FetchRequest { | |
| 61 return undef if $hasFetched; | |
| 62 $hasFetched = 1; | |
| 63 return CGI->new(); | |
| 64 } | |
| 65 } | |
| 66 | |
| 49 | 67 1; |
| 68 | |
| 52 | 69 __END__ |
| 70 | |
| 49 | 71 =pod |
| 72 | |
| 73 =head1 SYNOPSIS | |
| 74 | |
| 67 | 75 =begin code |
| 76 | |
| 49 | 77 require MyApp; |
| 67 | 78 |
| 79 my $instance = spawn MyApp('app.config'); | |
| 80 | |
| 81 $instance->Run(); | |
| 82 | |
| 83 =end code | |
| 49 | 84 |
| 85 =head1 DESCRIPTION | |
| 86 | |
| 87 Зкземпляр приложения содержит в себе глобальные настройки, реализует контроллер запросов, | |
| 52 | 88 в качестве источника запросов используется CGI или иной совместимый модуль. |
| 49 | 89 |
| 52 | 90 Процесс обработки запроса состоит из следующих частей |
| 49 | 91 |
| 67 | 92 =over |
| 93 | |
| 94 =item 1 | |
| 95 | |
| 96 Получение cgi запроса | |
| 97 | |
| 98 =item 2 | |
| 52 | 99 |
| 67 | 100 Создание объекта C<IMPL::Web::Application::Action> |
| 52 | 101 |
| 67 | 102 =item 3 |
| 52 | 103 |
| 67 | 104 Формирование цепочки вызовов при помощи C<< IMPL::Web::Application::Action->ChainHandler >> |
| 105 | |
| 106 =item 4 | |
| 107 | |
| 108 Выполнение запроса C<< IMPL::Web::Application::Action->Invoke >> | |
| 49 | 109 |
| 110 =cut | |
| 67 | 111 |
| 112 Также приложение поддерживает отложенное создание объектов, которые по первому обращению | |
| 113 к свойствам. Это реализовано в базовом классе C< IMPL::Configuration >. Для настройки | |
| 114 активаторов можно использовать свойство C<options>, в которое должен быть помещен хеш | |
| 115 со ссылками на активаторы, см. пример ниже C<CONFIGURATION>. | |
| 116 | |
| 117 =head2 CONFIGURATION | |
| 118 | |
| 119 Ниже приведен пример конфигурации приложения | |
| 120 | |
| 121 =begin code xml | |
| 122 | |
| 123 <?xml version="1.0" encoding="UTF-8"?> | |
| 124 <Application id='app' type="Test::Web::Application::Instance"> | |
| 125 | |
| 126 <!-- Begin custom properties --> | |
| 127 <name>Sample application</name> | |
| 128 <dataSource type='IMPL::Config::Activator' id='ds'> | |
| 129 <factory>IMPL::Object</factory> | |
| 130 <parameters type='HASH'> | |
| 131 <db>data</db> | |
| 132 <user>nobody</user> | |
| 133 </parameters> | |
| 134 </dataSource> | |
| 135 <securityMod type='IMPL::Config::Activator'> | |
| 136 <factory>IMPL::Object</factory> | |
| 137 <parameters type='HASH'> | |
| 138 <ds refid='ds'/> | |
| 139 </parameters> | |
| 140 </securityMod> | |
| 141 <!-- End custom properties --> | |
| 142 | |
| 143 <!-- direct access to the activators --> | |
| 144 <options type="HASH"> | |
| 145 <dataSource refid='ds'/> | |
| 146 </options> | |
| 147 | |
| 148 <!-- Set default output encoding, can be changed due query handling --> | |
| 149 <responseCharset>utf-8</responseCharset> | |
| 150 | |
| 151 <!-- Actions creation configuration --> | |
| 152 <actionFactory type="IMPL::Object::Factory"> | |
| 153 | |
| 154 <!-- Construct actions --> | |
| 155 <factory>IMPL::Web::Application::Action</factory> | |
| 156 <parameters type='HASH'> | |
| 157 | |
| 158 <!-- with special responseFactory --> | |
| 159 <responseFactory type='IMPL::Object::Factory'> | |
| 160 | |
| 161 <!-- Where resopnses have a special streamOut --> | |
| 162 <factory>IMPL::Web::Application::Response</factory> | |
| 163 <parameters type='HASH'> | |
| 164 | |
| 165 <!-- in memory dummy output instead of STDOUT --> | |
| 166 <streamOut>memory</streamOut> | |
| 167 | |
| 168 </parameters> | |
| 169 </responseFactory> | |
| 170 </parameters> | |
| 171 </actionFactory> | |
| 172 | |
| 173 <!-- Query processing chain --> | |
| 174 <handlersQuery type="IMPL::Object::List"> | |
| 175 <item type="IMPL::Web::QueryHandler::PageFormat"> | |
| 176 <templatesCharset>cp1251</templatesCharset> | |
| 177 </item> | |
| 178 </handlersQuery> | |
| 179 </Application> | |
| 180 | |
| 181 =end code xml | |
| 182 |