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:
Complex classes like DoctrineExtension often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use DoctrineExtension, and based on these observations, apply Extract Interface, too.
1 | <?php |
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35 | class DoctrineExtension extends AbstractDoctrineExtension |
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36 | { |
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37 | /** @var string */ |
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38 | private $defaultConnection; |
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39 | |||
40 | /** |
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41 | * {@inheritDoc} |
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42 | */ |
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43 | public function load(array $configs, ContainerBuilder $container) |
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44 | { |
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45 | $configuration = $this->getConfiguration($configs, $container); |
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46 | $config = $this->processConfiguration($configuration, $configs); |
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47 | |||
48 | if (! empty($config['dbal'])) { |
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49 | $this->dbalLoad($config['dbal'], $container); |
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50 | |||
51 | $this->loadMessengerServices($container); |
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52 | } |
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53 | |||
54 | if (empty($config['orm'])) { |
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55 | return; |
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56 | } |
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57 | |||
58 | if (empty($config['dbal'])) { |
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59 | throw new LogicException('Configuring the ORM layer requires to configure the DBAL layer as well.'); |
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60 | } |
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61 | |||
62 | $this->ormLoad($config['orm'], $container); |
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63 | } |
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64 | |||
65 | /** |
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66 | * Loads the DBAL configuration. |
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67 | * |
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68 | * Usage example: |
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69 | * |
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70 | * <doctrine:dbal id="myconn" dbname="sfweb" user="root" /> |
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71 | * |
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72 | * @param array $config An array of configuration settings |
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73 | * @param ContainerBuilder $container A ContainerBuilder instance |
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74 | */ |
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75 | protected function dbalLoad(array $config, ContainerBuilder $container) |
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76 | { |
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77 | $loader = new XmlFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config')); |
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78 | $loader->load('dbal.xml'); |
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79 | |||
80 | if (empty($config['default_connection'])) { |
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81 | $keys = array_keys($config['connections']); |
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82 | $config['default_connection'] = reset($keys); |
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83 | } |
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84 | |||
85 | $this->defaultConnection = $config['default_connection']; |
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86 | |||
87 | $container->setAlias('database_connection', sprintf('doctrine.dbal.%s_connection', $this->defaultConnection)); |
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88 | $container->getAlias('database_connection')->setPublic(true); |
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89 | $container->setAlias('doctrine.dbal.event_manager', new Alias(sprintf('doctrine.dbal.%s_connection.event_manager', $this->defaultConnection), false)); |
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90 | |||
91 | $container->setParameter('doctrine.dbal.connection_factory.types', $config['types']); |
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92 | |||
93 | $connections = []; |
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94 | |||
95 | foreach (array_keys($config['connections']) as $name) { |
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96 | $connections[$name] = sprintf('doctrine.dbal.%s_connection', $name); |
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97 | } |
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98 | |||
99 | $container->setParameter('doctrine.connections', $connections); |
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100 | $container->setParameter('doctrine.default_connection', $this->defaultConnection); |
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101 | |||
102 | foreach ($config['connections'] as $name => $connection) { |
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103 | $this->loadDbalConnection($name, $connection, $container); |
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104 | } |
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105 | } |
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106 | |||
107 | /** |
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108 | * Loads a configured DBAL connection. |
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109 | * |
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110 | * @param string $name The name of the connection |
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111 | * @param array $connection A dbal connection configuration. |
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112 | * @param ContainerBuilder $container A ContainerBuilder instance |
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113 | */ |
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114 | protected function loadDbalConnection($name, array $connection, ContainerBuilder $container) |
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115 | { |
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116 | $configuration = $container->setDefinition(sprintf('doctrine.dbal.%s_connection.configuration', $name), new ChildDefinition('doctrine.dbal.connection.configuration')); |
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117 | $logger = null; |
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118 | if ($connection['logging']) { |
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119 | $logger = new Reference('doctrine.dbal.logger'); |
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120 | } |
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121 | unset($connection['logging']); |
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122 | |||
123 | if ($connection['profiling']) { |
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124 | $profilingAbstractId = $connection['profiling_collect_backtrace'] ? |
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125 | 'doctrine.dbal.logger.backtrace' : |
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126 | 'doctrine.dbal.logger.profiling'; |
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127 | |||
128 | $profilingLoggerId = $profilingAbstractId . '.' . $name; |
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129 | $container->setDefinition($profilingLoggerId, new ChildDefinition($profilingAbstractId)); |
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130 | $profilingLogger = new Reference($profilingLoggerId); |
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131 | $container->getDefinition('data_collector.doctrine')->addMethodCall('addLogger', [$name, $profilingLogger]); |
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132 | |||
133 | if ($logger !== null) { |
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134 | $chainLogger = new ChildDefinition('doctrine.dbal.logger.chain'); |
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135 | $chainLogger->addMethodCall('addLogger', [$profilingLogger]); |
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136 | |||
137 | $loggerId = 'doctrine.dbal.logger.chain.' . $name; |
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138 | $container->setDefinition($loggerId, $chainLogger); |
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139 | $logger = new Reference($loggerId); |
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140 | } else { |
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141 | $logger = $profilingLogger; |
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142 | } |
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143 | } |
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144 | unset($connection['profiling'], $connection['profiling_collect_backtrace']); |
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145 | |||
146 | if (isset($connection['auto_commit'])) { |
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147 | $configuration->addMethodCall('setAutoCommit', [$connection['auto_commit']]); |
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148 | } |
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149 | |||
150 | unset($connection['auto_commit']); |
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151 | |||
152 | if (isset($connection['schema_filter']) && $connection['schema_filter']) { |
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153 | $definition = new Definition(RegexSchemaAssetFilter::class, [$connection['schema_filter']]); |
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154 | $definition->addTag('doctrine.dbal.schema_filter', ['connection' => $name]); |
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155 | $container->setDefinition(sprintf('doctrine.dbal.%s_regex_schema_filter', $name), $definition); |
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156 | } |
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157 | |||
158 | unset($connection['schema_filter']); |
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159 | |||
160 | if ($logger) { |
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161 | $configuration->addMethodCall('setSQLLogger', [$logger]); |
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162 | } |
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163 | |||
164 | // event manager |
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165 | $container->setDefinition(sprintf('doctrine.dbal.%s_connection.event_manager', $name), new ChildDefinition('doctrine.dbal.connection.event_manager')); |
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166 | |||
167 | // connection |
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168 | $options = $this->getConnectionOptions($connection); |
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169 | |||
170 | $def = $container |
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171 | ->setDefinition(sprintf('doctrine.dbal.%s_connection', $name), new ChildDefinition('doctrine.dbal.connection')) |
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172 | ->setPublic(true) |
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173 | ->setArguments([ |
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174 | $options, |
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175 | new Reference(sprintf('doctrine.dbal.%s_connection.configuration', $name)), |
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176 | new Reference(sprintf('doctrine.dbal.%s_connection.event_manager', $name)), |
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177 | $connection['mapping_types'], |
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178 | ]); |
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179 | |||
180 | // Set class in case "wrapper_class" option was used to assist IDEs |
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181 | if (isset($options['wrapperClass'])) { |
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182 | $def->setClass($options['wrapperClass']); |
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183 | } |
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184 | |||
185 | if (! empty($connection['use_savepoints'])) { |
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186 | $def->addMethodCall('setNestTransactionsWithSavepoints', [$connection['use_savepoints']]); |
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187 | } |
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188 | |||
189 | // Create a shard_manager for this connection |
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190 | if (! isset($options['shards'])) { |
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191 | return; |
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192 | } |
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193 | |||
194 | $shardManagerDefinition = new Definition($options['shardManagerClass'], [new Reference(sprintf('doctrine.dbal.%s_connection', $name))]); |
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195 | $container->setDefinition(sprintf('doctrine.dbal.%s_shard_manager', $name), $shardManagerDefinition); |
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196 | } |
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197 | |||
198 | protected function getConnectionOptions($connection) |
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311 | |||
312 | /** |
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313 | * Loads the Doctrine ORM configuration. |
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314 | * |
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315 | * Usage example: |
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316 | * |
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317 | * <doctrine:orm id="mydm" connection="myconn" /> |
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318 | * |
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319 | * @param array $config An array of configuration settings |
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320 | * @param ContainerBuilder $container A ContainerBuilder instance |
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321 | */ |
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322 | protected function ormLoad(array $config, ContainerBuilder $container) |
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323 | { |
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324 | if (! class_exists(Version::class)) { |
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325 | throw new LogicException('To configure the ORM layer, you must first install the doctrine/orm package.'); |
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326 | } |
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327 | |||
328 | $loader = new XmlFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config')); |
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329 | $loader->load('orm.xml'); |
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330 | |||
331 | if (class_exists(AbstractType::class)) { |
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332 | $container->getDefinition('form.type.entity')->addTag('kernel.reset', ['method' => 'reset']); |
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333 | } |
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334 | |||
335 | $entityManagers = []; |
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336 | foreach (array_keys($config['entity_managers']) as $name) { |
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337 | $entityManagers[$name] = sprintf('doctrine.orm.%s_entity_manager', $name); |
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338 | } |
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339 | $container->setParameter('doctrine.entity_managers', $entityManagers); |
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340 | |||
341 | if (empty($config['default_entity_manager'])) { |
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342 | $tmp = array_keys($entityManagers); |
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343 | $config['default_entity_manager'] = reset($tmp); |
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344 | } |
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345 | $container->setParameter('doctrine.default_entity_manager', $config['default_entity_manager']); |
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346 | |||
347 | $options = ['auto_generate_proxy_classes', 'proxy_dir', 'proxy_namespace']; |
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348 | foreach ($options as $key) { |
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349 | $container->setParameter('doctrine.orm.' . $key, $config[$key]); |
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350 | } |
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351 | |||
352 | $container->setAlias('doctrine.orm.entity_manager', sprintf('doctrine.orm.%s_entity_manager', $config['default_entity_manager'])); |
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353 | $container->getAlias('doctrine.orm.entity_manager')->setPublic(true); |
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354 | |||
355 | $config['entity_managers'] = $this->fixManagersAutoMappings($config['entity_managers'], $container->getParameter('kernel.bundles')); |
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356 | |||
357 | foreach ($config['entity_managers'] as $name => $entityManager) { |
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358 | $entityManager['name'] = $name; |
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359 | $this->loadOrmEntityManager($entityManager, $container); |
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360 | |||
361 | if (interface_exists(PropertyInfoExtractorInterface::class)) { |
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362 | $this->loadPropertyInfoExtractor($name, $container); |
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363 | } |
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364 | |||
365 | $this->loadValidatorLoader($name, $container); |
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366 | } |
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367 | |||
368 | if ($config['resolve_target_entities']) { |
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369 | $def = $container->findDefinition('doctrine.orm.listeners.resolve_target_entity'); |
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370 | foreach ($config['resolve_target_entities'] as $name => $implementation) { |
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371 | $def->addMethodCall('addResolveTargetEntity', [ |
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372 | $name, |
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373 | $implementation, |
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374 | [], |
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375 | ]); |
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376 | } |
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377 | |||
378 | $def->addTag('doctrine.event_subscriber'); |
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379 | } |
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380 | |||
381 | $container->registerForAutoconfiguration(ServiceEntityRepositoryInterface::class) |
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382 | ->addTag(ServiceRepositoryCompilerPass::REPOSITORY_SERVICE_TAG); |
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383 | } |
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384 | |||
385 | /** |
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386 | * Loads a configured ORM entity manager. |
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387 | * |
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388 | * @param array $entityManager A configured ORM entity manager. |
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389 | * @param ContainerBuilder $container A ContainerBuilder instance |
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390 | */ |
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391 | protected function loadOrmEntityManager(array $entityManager, ContainerBuilder $container) |
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521 | |||
522 | /** |
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523 | * Loads an ORM entity managers bundle mapping information. |
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524 | * |
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525 | * There are two distinct configuration possibilities for mapping information: |
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526 | * |
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527 | * 1. Specify a bundle and optionally details where the entity and mapping information reside. |
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528 | * 2. Specify an arbitrary mapping location. |
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529 | * |
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530 | * @param array $entityManager A configured ORM entity manager |
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531 | * @param Definition $ormConfigDef A Definition instance |
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532 | * @param ContainerBuilder $container A ContainerBuilder instance |
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533 | * |
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534 | * @example |
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535 | * |
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536 | * doctrine.orm: |
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537 | * mappings: |
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538 | * MyBundle1: ~ |
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539 | * MyBundle2: yml |
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540 | * MyBundle3: { type: annotation, dir: Entities/ } |
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541 | * MyBundle4: { type: xml, dir: Resources/config/doctrine/mapping } |
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542 | * MyBundle5: |
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543 | * type: yml |
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544 | * dir: bundle-mappings/ |
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545 | * alias: BundleAlias |
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546 | * arbitrary_key: |
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547 | * type: xml |
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548 | * dir: %kernel.project_dir%/src/vendor/DoctrineExtensions/lib/DoctrineExtensions/Entities |
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549 | * prefix: DoctrineExtensions\Entities\ |
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550 | * alias: DExt |
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551 | * |
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552 | * In the case of bundles everything is really optional (which leads to autodetection for this bundle) but |
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553 | * in the mappings key everything except alias is a required argument. |
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554 | */ |
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555 | protected function loadOrmEntityManagerMappingInformation(array $entityManager, Definition $ormConfigDef, ContainerBuilder $container) |
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566 | |||
567 | /** |
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568 | * Loads an ORM second level cache bundle mapping information. |
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569 | * |
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570 | * @param array $entityManager A configured ORM entity manager |
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571 | * @param Definition $ormConfigDef A Definition instance |
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572 | * @param ContainerBuilder $container A ContainerBuilder instance |
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573 | * |
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574 | * @example |
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575 | * entity_managers: |
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576 | * default: |
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577 | * second_level_cache: |
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578 | * region_cache_driver: apc |
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579 | * log_enabled: true |
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580 | * regions: |
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581 | * my_service_region: |
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582 | * type: service |
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583 | * service : "my_service_region" |
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584 | * |
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585 | * my_query_region: |
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586 | * lifetime: 300 |
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587 | * cache_driver: array |
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588 | * type: filelock |
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589 | * |
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590 | * my_entity_region: |
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591 | * lifetime: 600 |
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592 | * cache_driver: |
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593 | * type: apc |
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594 | */ |
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595 | protected function loadOrmSecondLevelCache(array $entityManager, Definition $ormConfigDef, ContainerBuilder $container) |
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683 | |||
684 | /** |
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685 | * {@inheritDoc} |
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686 | */ |
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687 | protected function getObjectManagerElementName($name) : string |
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691 | |||
692 | protected function getMappingObjectDefaultName() : string |
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696 | |||
697 | /** |
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698 | * {@inheritDoc} |
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699 | */ |
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700 | protected function getMappingResourceConfigDirectory() : string |
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704 | |||
705 | /** |
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706 | * {@inheritDoc} |
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707 | */ |
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708 | protected function getMappingResourceExtension() : string |
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712 | |||
713 | /** |
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714 | * {@inheritDoc} |
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715 | */ |
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716 | protected function loadCacheDriver($cacheName, $objectManagerName, array $cacheDriver, ContainerBuilder $container) : string |
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747 | |||
748 | /** |
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749 | * Loads a configured entity managers cache drivers. |
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750 | * |
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751 | * @param array $entityManager A configured ORM entity manager. |
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752 | * @param ContainerBuilder $container A ContainerBuilder instance |
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753 | */ |
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754 | protected function loadOrmCacheDrivers(array $entityManager, ContainerBuilder $container) |
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760 | |||
761 | /** |
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762 | * Loads a property info extractor for each defined entity manager. |
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763 | * |
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764 | * @param string $entityManagerName |
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765 | */ |
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766 | private function loadPropertyInfoExtractor($entityManagerName, ContainerBuilder $container) |
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777 | |||
778 | /** |
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779 | * Loads a validator loader for each defined entity manager. |
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780 | */ |
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781 | private function loadValidatorLoader(string $entityManagerName, ContainerBuilder $container) : void |
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788 | |||
789 | /** |
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790 | * @param array $objectManager |
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791 | * @param string $cacheName |
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792 | */ |
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793 | public function loadObjectManagerCacheDriver(array $objectManager, ContainerBuilder $container, $cacheName) |
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797 | |||
798 | /** |
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799 | * {@inheritDoc} |
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800 | */ |
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801 | public function getXsdValidationBasePath() : string |
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805 | |||
806 | /** |
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807 | * {@inheritDoc} |
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808 | */ |
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809 | public function getNamespace() : string |
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813 | |||
814 | /** |
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815 | * {@inheritDoc} |
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816 | */ |
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817 | public function getConfiguration(array $config, ContainerBuilder $container) : Configuration |
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821 | |||
822 | protected function getMetadataDriverClass(string $driverType) : string |
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826 | |||
827 | private function loadMessengerServices(ContainerBuilder $container) : void |
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848 | |||
849 | private function createPoolCacheDefinition(ContainerBuilder $container, string $poolName) : string |
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859 | |||
860 | private function createArrayAdapterCachePool(ContainerBuilder $container, string $objectManagerName, string $cacheName) : string |
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870 | } |
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871 |
Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: