Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php |
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| 29 | final class Configuration implements ConfigurationInterface |
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| 30 | { |
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| 31 | /** |
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| 32 | * Generates the configuration tree. |
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| 33 | * |
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| 34 | * @return TreeBuilder |
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| 35 | */ |
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| 36 | 47 | public function getConfigTreeBuilder() |
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| 37 | { |
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| 38 | 47 | $treeBuilder = new TreeBuilder(); |
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| 39 | 47 | $rootNode = $treeBuilder->root('fos_rest', 'array'); |
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| 40 | |||
| 41 | $rootNode |
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| 42 | 47 | ->children() |
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| 43 | 47 | ->scalarNode('disable_csrf_role')->defaultNull()->end() |
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| 44 | 47 | ->arrayNode('access_denied_listener') |
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| 45 | 47 | ->canBeEnabled() |
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| 46 | 47 | ->beforeNormalization() |
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| 47 | View Code Duplication | ->ifArray()->then(function ($v) { if (!empty($v) && empty($v['formats'])) { |
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| 48 | unset($v['enabled']); |
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| 49 | $v = ['enabled' => true, 'formats' => $v]; |
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| 50 | } |
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| 51 | |||
| 52 | 47 | return $v; }) |
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| 53 | 47 | ->end() |
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| 54 | 47 | ->fixXmlConfig('format', 'formats') |
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| 55 | 47 | ->children() |
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| 56 | 47 | ->scalarNode('service')->defaultNull()->end() |
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| 57 | 47 | ->arrayNode('formats') |
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| 58 | 47 | ->useAttributeAsKey('name') |
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| 59 | 47 | ->prototype('boolean')->end() |
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| 60 | 47 | ->end() |
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| 61 | 47 | ->end() |
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| 62 | 47 | ->end() |
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| 63 | 47 | ->scalarNode('unauthorized_challenge')->defaultNull()->end() |
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| 64 | 47 | ->arrayNode('param_fetcher_listener') |
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| 65 | 47 | ->beforeNormalization() |
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| 66 | 47 | ->ifString() |
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| 67 | View Code Duplication | ->then(function ($v) { return ['enabled' => in_array($v, ['force', 'true']), 'force' => 'force' === $v]; }) |
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| 68 | 47 | ->end() |
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| 69 | 47 | ->canBeEnabled() |
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| 70 | 47 | ->children() |
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| 71 | 47 | ->booleanNode('enabled')->defaultFalse()->end() |
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| 72 | 47 | ->booleanNode('force')->defaultFalse()->end() |
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| 73 | 47 | ->scalarNode('service')->defaultNull()->end() |
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| 74 | 47 | ->end() |
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| 75 | 47 | ->end() |
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| 76 | 47 | ->scalarNode('cache_dir')->cannotBeEmpty()->defaultValue('%kernel.cache_dir%/fos_rest')->end() |
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| 77 | 47 | ->arrayNode('allowed_methods_listener') |
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| 78 | 47 | ->canBeEnabled() |
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| 79 | 47 | ->children() |
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| 80 | 47 | ->scalarNode('service')->defaultNull()->end() |
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| 81 | 47 | ->end() |
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| 82 | 47 | ->end() |
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| 83 | 47 | ->arrayNode('routing_loader') |
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| 84 | 47 | ->addDefaultsIfNotSet() |
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| 85 | 47 | ->children() |
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| 86 | 47 | ->scalarNode('default_format')->defaultNull()->end() |
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| 87 | 47 | ->scalarNode('include_format')->defaultTrue()->end() |
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| 88 | 47 | ->end() |
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| 89 | 47 | ->end() |
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| 90 | 47 | ->arrayNode('body_converter') |
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| 91 | 47 | ->addDefaultsIfNotSet() |
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| 92 | 47 | ->children() |
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| 93 | 47 | ->scalarNode('enabled')->defaultFalse()->end() |
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| 94 | 47 | ->scalarNode('validate')->defaultFalse()->end() |
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| 95 | 47 | ->scalarNode('validation_errors_argument')->defaultValue('validationErrors')->end() |
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| 96 | 47 | ->end() |
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| 97 | 47 | ->end() |
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| 98 | 47 | ->arrayNode('service') |
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| 99 | 47 | ->addDefaultsIfNotSet() |
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| 100 | 47 | ->children() |
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| 101 | 47 | ->scalarNode('router')->defaultValue('router')->end() |
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| 102 | 47 | ->scalarNode('templating')->defaultValue('templating')->end() |
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| 103 | 47 | ->scalarNode('serializer')->defaultNull()->end() |
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| 104 | 47 | ->scalarNode('view_handler')->defaultValue('fos_rest.view_handler.default')->end() |
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| 105 | 47 | ->scalarNode('exception_handler')->defaultValue('fos_rest.view.exception_wrapper_handler')->end() |
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| 106 | 47 | ->scalarNode('inflector')->defaultValue('fos_rest.inflector.doctrine')->end() |
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| 107 | 47 | ->scalarNode('validator')->defaultValue('validator')->end() |
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| 108 | 47 | ->end() |
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| 109 | 47 | ->end() |
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| 110 | 47 | ->arrayNode('serializer') |
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| 111 | 47 | ->addDefaultsIfNotSet() |
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| 112 | 47 | ->children() |
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| 113 | 47 | ->scalarNode('version')->defaultNull()->end() |
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| 114 | 47 | ->arrayNode('groups') |
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| 115 | 47 | ->prototype('scalar')->end() |
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| 116 | 47 | ->end() |
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| 117 | 47 | ->booleanNode('serialize_null')->defaultFalse()->end() |
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| 118 | 47 | ->end() |
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| 119 | 47 | ->end() |
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| 120 | 47 | ->arrayNode('zone') |
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| 121 | 47 | ->cannotBeOverwritten() |
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| 122 | 47 | ->prototype('array') |
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| 123 | 47 | ->fixXmlConfig('ip') |
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| 124 | 47 | ->children() |
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| 125 | 47 | ->scalarNode('path') |
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| 126 | 47 | ->defaultNull() |
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| 127 | 47 | ->info('use the urldecoded format') |
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| 128 | 47 | ->example('^/path to resource/') |
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| 129 | 47 | ->end() |
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| 130 | 47 | ->scalarNode('host')->defaultNull()->end() |
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| 131 | 47 | ->arrayNode('methods') |
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| 132 | ->beforeNormalization()->ifString()->then(function ($v) { return preg_split('/\s*,\s*/', $v); })->end() |
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| 133 | 47 | ->prototype('scalar')->end() |
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| 134 | 47 | ->end() |
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| 135 | 47 | ->arrayNode('ips') |
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| 136 | ->beforeNormalization()->ifString()->then(function ($v) { return array($v); })->end() |
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| 137 | 47 | ->prototype('scalar')->end() |
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| 138 | 47 | ->end() |
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| 139 | 47 | ->end() |
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| 140 | 47 | ->end() |
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| 141 | 47 | ->end() |
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| 142 | 47 | ->end(); |
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| 143 | |||
| 144 | 47 | $this->addViewSection($rootNode); |
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| 145 | 47 | $this->addExceptionSection($rootNode); |
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| 146 | 47 | $this->addBodyListenerSection($rootNode); |
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| 147 | 47 | $this->addFormatListenerSection($rootNode); |
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| 148 | 47 | $this->addVersioningSection($rootNode); |
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| 149 | |||
| 150 | 47 | return $treeBuilder; |
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| 151 | } |
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| 152 | |||
| 153 | 47 | private function addViewSection(ArrayNodeDefinition $rootNode) |
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| 154 | { |
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| 155 | $rootNode |
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| 156 | 47 | ->children() |
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| 157 | 47 | ->arrayNode('view') |
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| 158 | 47 | ->fixXmlConfig('format', 'formats') |
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| 159 | 47 | ->fixXmlConfig('mime_type', 'mime_types') |
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| 160 | 47 | ->fixXmlConfig('templating_format', 'templating_formats') |
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| 161 | 47 | ->fixXmlConfig('force_redirect', 'force_redirects') |
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| 162 | 47 | ->addDefaultsIfNotSet() |
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| 163 | 47 | ->children() |
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| 164 | 47 | ->scalarNode('default_engine')->defaultValue('twig')->end() |
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| 165 | 47 | ->arrayNode('force_redirects') |
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| 166 | 47 | ->useAttributeAsKey('name') |
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| 167 | 47 | ->defaultValue(['html' => true]) |
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| 168 | 47 | ->prototype('boolean')->end() |
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| 169 | 47 | ->end() |
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| 170 | 47 | ->arrayNode('mime_types') |
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| 171 | 47 | ->canBeEnabled() |
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| 172 | 47 | ->beforeNormalization() |
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| 173 | View Code Duplication | ->ifArray()->then(function ($v) { |
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| 174 | 1 | if (!empty($v) && empty($v['formats'])) { |
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| 175 | 1 | unset($v['enabled']); |
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| 176 | 1 | $v = ['enabled' => true, 'formats' => $v]; |
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| 177 | 1 | } |
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| 178 | |||
| 179 | 1 | return $v; |
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| 180 | 47 | }) |
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| 181 | 47 | ->end() |
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| 182 | 47 | ->fixXmlConfig('format', 'formats') |
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| 183 | 47 | ->children() |
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| 184 | 47 | ->scalarNode('service')->defaultNull()->end() |
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| 185 | 47 | ->arrayNode('formats') |
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| 186 | 47 | ->useAttributeAsKey('name') |
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| 187 | 47 | ->prototype('variable')->end() |
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| 188 | 47 | ->end() |
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| 189 | 47 | ->end() |
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| 190 | 47 | ->end() |
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| 191 | 47 | ->arrayNode('formats') |
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| 192 | 47 | ->useAttributeAsKey('name') |
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| 193 | 47 | ->defaultValue(['json' => true, 'xml' => true]) |
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| 194 | 47 | ->prototype('boolean')->end() |
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| 195 | 47 | ->end() |
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| 196 | 47 | ->arrayNode('templating_formats') |
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| 197 | 47 | ->useAttributeAsKey('name') |
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| 198 | 47 | ->defaultValue(['html' => true]) |
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| 199 | 47 | ->prototype('boolean')->end() |
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| 200 | 47 | ->end() |
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| 201 | 47 | ->arrayNode('view_response_listener') |
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| 202 | 47 | ->beforeNormalization() |
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| 203 | 47 | ->ifString() |
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| 204 | View Code Duplication | ->then(function ($v) { return ['enabled' => in_array($v, ['force', 'true']), 'force' => 'force' === $v]; }) |
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| 205 | 47 | ->end() |
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| 206 | 47 | ->canBeEnabled() |
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| 207 | 47 | ->children() |
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| 208 | 47 | ->booleanNode('enabled')->defaultFalse()->end() |
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| 209 | 47 | ->booleanNode('force')->defaultFalse()->end() |
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| 210 | 47 | ->scalarNode('service')->defaultNull()->end() |
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| 211 | 47 | ->end() |
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| 212 | 47 | ->end() |
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| 213 | 47 | ->scalarNode('failed_validation')->defaultValue(Response::HTTP_BAD_REQUEST)->end() |
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| 214 | 47 | ->scalarNode('empty_content')->defaultValue(Response::HTTP_NO_CONTENT)->end() |
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| 215 | 47 | ->scalarNode('exception_wrapper_handler')->defaultNull()->end() |
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| 216 | 47 | ->booleanNode('serialize_null')->defaultFalse()->end() |
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| 217 | 47 | ->arrayNode('jsonp_handler') |
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| 218 | 47 | ->canBeUnset() |
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| 219 | 47 | ->children() |
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| 220 | 47 | ->scalarNode('callback_param')->defaultValue('callback')->end() |
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| 221 | 47 | ->scalarNode('mime_type')->defaultValue('application/javascript+jsonp')->end() |
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| 222 | 47 | ->end() |
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| 223 | 47 | ->end() |
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| 224 | 47 | ->end() |
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| 225 | 47 | ->end() |
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| 226 | 47 | ->end(); |
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| 227 | 47 | } |
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| 228 | |||
| 229 | 47 | private function addBodyListenerSection(ArrayNodeDefinition $rootNode) |
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| 263 | |||
| 264 | 47 | private function addFormatListenerSection(ArrayNodeDefinition $rootNode) |
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| 265 | { |
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| 266 | $rootNode |
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| 267 | 47 | ->children() |
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| 268 | 47 | ->arrayNode('format_listener') |
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| 269 | 47 | ->fixXmlConfig('rule', 'rules') |
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| 270 | 47 | ->addDefaultsIfNotSet() |
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| 271 | 47 | ->canBeUnset() |
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| 272 | 47 | ->beforeNormalization() |
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| 273 | ->ifTrue(function ($v) { |
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| 274 | // check if we got an assoc array in rules |
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| 275 | 7 | return isset($v['rules']) |
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| 276 | 7 | && is_array($v['rules']) |
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| 277 | 7 | && array_keys($v['rules']) !== range(0, count($v['rules']) - 1); |
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| 278 | 47 | }) |
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| 279 | ->then(function ($v) { |
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| 280 | 1 | $v['rules'] = [$v['rules']]; |
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| 281 | |||
| 282 | 1 | return $v; |
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| 283 | 47 | }) |
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| 284 | 47 | ->end() |
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| 285 | 47 | ->canBeEnabled() |
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| 286 | 47 | ->validate() |
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| 287 | ->ifTrue(function ($v) { return empty($v['rules']) && !empty($v['media_type']['enabled']); }) |
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| 288 | 47 | ->thenInvalid('To enable the "media_type" setting, a "rules" setting must also needs to be defined for the "format_listener"') |
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| 289 | 47 | ->end() |
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| 290 | 47 | ->children() |
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| 291 | 47 | ->scalarNode('service')->defaultNull()->end() |
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| 292 | 47 | ->arrayNode('rules') |
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| 293 | 47 | ->cannotBeOverwritten() |
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| 294 | 47 | ->prototype('array') |
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| 295 | 47 | ->fixXmlConfig('priority', 'priorities') |
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| 296 | 47 | ->children() |
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| 297 | 47 | ->scalarNode('path')->defaultNull()->info('URL path info')->end() |
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| 298 | 47 | ->scalarNode('host')->defaultNull()->info('URL host name')->end() |
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| 299 | 47 | ->variableNode('methods')->defaultNull()->info('Method for URL')->end() |
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| 300 | 47 | ->booleanNode('stop')->defaultFalse()->end() |
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| 301 | 47 | ->booleanNode('prefer_extension')->defaultTrue()->end() |
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| 302 | 47 | ->scalarNode('fallback_format')->defaultValue('html')->end() |
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| 303 | 47 | ->scalarNode('exception_fallback_format')->defaultNull()->end() |
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| 304 | 47 | ->arrayNode('priorities') |
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| 305 | ->beforeNormalization()->ifString()->then(function ($v) { return preg_split('/\s*,\s*/', $v); })->end() |
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| 306 | 47 | ->prototype('scalar')->end() |
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| 307 | 47 | ->end() |
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| 308 | 47 | ->end() |
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| 309 | 47 | ->end() |
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| 310 | 47 | ->end() |
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| 311 | 47 | ->end() |
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| 312 | 47 | ->end() |
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| 313 | 47 | ->end(); |
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| 314 | 47 | } |
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| 315 | |||
| 316 | 47 | private function addVersioningSection(ArrayNodeDefinition $rootNode) |
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| 365 | |||
| 366 | 47 | private function addExceptionSection(ArrayNodeDefinition $rootNode) |
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| 393 | } |
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| 394 |
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.