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JsonDescriptor.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\Console\Descriptor;
013
014 use Symfony\Component\Console\Application;
015 use Symfony\Component\Console\Command\Command;
016 use Symfony\Component\Console\Input\InputArgument;
017 use Symfony\Component\Console\Input\InputDefinition;
018 use Symfony\Component\Console\Input\InputOption;
019
020 /**
021 * JSON descriptor.
022 *
023 * @author Jean-François Simon <contact@jfsimon.fr>
024 *
025 * @internal
026 */
027 class JsonDescriptor extends Descriptor
028 {
029 /**
030 * {@inheritdoc}
031 */
032 protected function describeInputArgument(InputArgument $argument, array $options = array())
033 {
034 $this->writeData($this->getInputArgumentData($argument), $options);
035 }
036
037 /**
038 * {@inheritdoc}
039 */
040 protected function describeInputOption(InputOption $option, array $options = array())
041 {
042 $this->writeData($this->getInputOptionData($option), $options);
043 }
044
045 /**
046 * {@inheritdoc}
047 */
048 protected function describeInputDefinition(InputDefinition $definition, array $options = array())
049 {
050 $this->writeData($this->getInputDefinitionData($definition), $options);
051 }
052
053 /**
054 * {@inheritdoc}
055 */
056 protected function describeCommand(Command $command, array $options = array())
057 {
058 $this->writeData($this->getCommandData($command), $options);
059 }
060
061 /**
062 * {@inheritdoc}
063 */
064 protected function describeApplication(Application $application, array $options = array())
065 {
066 $describedNamespace = isset($options['namespace']) ? $options['namespace'] : null;
067 $description = new ApplicationDescription($application, $describedNamespace);
068 $commands = array();
069
070 foreach ($description->getCommands() as $command) {
071 $commands[] = $this->getCommandData($command);
072 }
073
074 $data = $describedNamespace
075 ? array('commands' => $commands, 'namespace' => $describedNamespace)
076 : array('commands' => $commands, 'namespaces' => array_values($description->getNamespaces()));
077
078 $this->writeData($data, $options);
079 }
080
081 /**
082 * Writes data as json.
083 *
084 * @param array $data
085 * @param array $options
086 *
087 * @return array|string
088 */
089 private function writeData(array $data, array $options)
090 {
091 $this->write(json_encode($data, isset($options['json_encoding']) ? $options['json_encoding'] : 0));
092 }
093
094 /**
095 * @param InputArgument $argument
096 *
097 * @return array
098 */
099 private function getInputArgumentData(InputArgument $argument)
100 {
101 return array(
102 'name' => $argument->getName(),
103 'is_required' => $argument->isRequired(),
104 'is_array' => $argument->isArray(),
105 'description' => preg_replace('/\s*[\r\n]\s*/', ' ', $argument->getDescription()),
106 'default' => $argument->getDefault(),
107 );
108 }
109
110 /**
111 * @param InputOption $option
112 *
113 * @return array
114 */
115 private function getInputOptionData(InputOption $option)
116 {
117 return array(
118 'name' => '--'.$option->getName(),
119 'shortcut' => $option->getShortcut() ? '-'.implode('|-', explode('|', $option->getShortcut())) : '',
120 'accept_value' => $option->acceptValue(),
121 'is_value_required' => $option->isValueRequired(),
122 'is_multiple' => $option->isArray(),
123 'description' => preg_replace('/\s*[\r\n]\s*/', ' ', $option->getDescription()),
124 'default' => $option->getDefault(),
125 );
126 }
127
128 /**
129 * @param InputDefinition $definition
130 *
131 * @return array
132 */
133 private function getInputDefinitionData(InputDefinition $definition)
134 {
135 $inputArguments = array();
136 foreach ($definition->getArguments() as $name => $argument) {
137 $inputArguments[$name] = $this->getInputArgumentData($argument);
138 }
139
140 $inputOptions = array();
141 foreach ($definition->getOptions() as $name => $option) {
142 $inputOptions[$name] = $this->getInputOptionData($option);
143 }
144
145 return array('arguments' => $inputArguments, 'options' => $inputOptions);
146 }
147
148 /**
149 * @param Command $command
150 *
151 * @return array
152 */
153 private function getCommandData(Command $command)
154 {
155 $command->getSynopsis();
156 $command->mergeApplicationDefinition(false);
157
158 return array(
159 'name' => $command->getName(),
160 'usage' => array_merge(array($command->getSynopsis()), $command->getUsages(), $command->getAliases()),
161 'description' => $command->getDescription(),
162 'help' => $command->getProcessedHelp(),
163 'definition' => $this->getInputDefinitionData($command->getNativeDefinition()),
164 );
165 }
166 }
167