Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\DependencyInjection\Dumper;
Chris@0: 
Chris@0: use Symfony\Component\DependencyInjection\Definition;
Chris@0: use Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException;
Chris@0: use Symfony\Component\DependencyInjection\Reference;
Chris@0: use Symfony\Component\DependencyInjection\Parameter;
Chris@0: use Symfony\Component\DependencyInjection\ContainerBuilder;
Chris@0: use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
Chris@0: 
Chris@0: /**
Chris@0:  * GraphvizDumper dumps a service container as a graphviz file.
Chris@0:  *
Chris@0:  * You can convert the generated dot file with the dot utility (http://www.graphviz.org/):
Chris@0:  *
Chris@0:  *   dot -Tpng container.dot > foo.png
Chris@0:  *
Chris@0:  * @author Fabien Potencier <fabien@symfony.com>
Chris@0:  */
Chris@0: class GraphvizDumper extends Dumper
Chris@0: {
Chris@0:     private $nodes;
Chris@0:     private $edges;
Chris@0:     private $options = array(
Chris@0:             'graph' => array('ratio' => 'compress'),
Chris@0:             'node' => array('fontsize' => 11, 'fontname' => 'Arial', 'shape' => 'record'),
Chris@0:             'edge' => array('fontsize' => 9, 'fontname' => 'Arial', 'color' => 'grey', 'arrowhead' => 'open', 'arrowsize' => 0.5),
Chris@0:             'node.instance' => array('fillcolor' => '#9999ff', 'style' => 'filled'),
Chris@0:             'node.definition' => array('fillcolor' => '#eeeeee'),
Chris@0:             'node.missing' => array('fillcolor' => '#ff9999', 'style' => 'filled'),
Chris@0:         );
Chris@0: 
Chris@0:     /**
Chris@0:      * Dumps the service container as a graphviz graph.
Chris@0:      *
Chris@0:      * Available options:
Chris@0:      *
Chris@0:      *  * graph: The default options for the whole graph
Chris@0:      *  * node: The default options for nodes
Chris@0:      *  * edge: The default options for edges
Chris@0:      *  * node.instance: The default options for services that are defined directly by object instances
Chris@0:      *  * node.definition: The default options for services that are defined via service definition instances
Chris@0:      *  * node.missing: The default options for missing services
Chris@0:      *
Chris@0:      * @param array $options An array of options
Chris@0:      *
Chris@0:      * @return string The dot representation of the service container
Chris@0:      */
Chris@0:     public function dump(array $options = array())
Chris@0:     {
Chris@0:         foreach (array('graph', 'node', 'edge', 'node.instance', 'node.definition', 'node.missing') as $key) {
Chris@0:             if (isset($options[$key])) {
Chris@0:                 $this->options[$key] = array_merge($this->options[$key], $options[$key]);
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         $this->nodes = $this->findNodes();
Chris@0: 
Chris@0:         $this->edges = array();
Chris@0:         foreach ($this->container->getDefinitions() as $id => $definition) {
Chris@0:             $this->edges[$id] = array_merge(
Chris@0:                 $this->findEdges($id, $definition->getArguments(), true, ''),
Chris@0:                 $this->findEdges($id, $definition->getProperties(), false, '')
Chris@0:             );
Chris@0: 
Chris@0:             foreach ($definition->getMethodCalls() as $call) {
Chris@0:                 $this->edges[$id] = array_merge(
Chris@0:                     $this->edges[$id],
Chris@0:                     $this->findEdges($id, $call[1], false, $call[0].'()')
Chris@0:                 );
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         return $this->container->resolveEnvPlaceholders($this->startDot().$this->addNodes().$this->addEdges().$this->endDot(), '__ENV_%s__');
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns all nodes.
Chris@0:      *
Chris@0:      * @return string A string representation of all nodes
Chris@0:      */
Chris@0:     private function addNodes()
Chris@0:     {
Chris@0:         $code = '';
Chris@0:         foreach ($this->nodes as $id => $node) {
Chris@0:             $aliases = $this->getAliases($id);
Chris@0: 
Chris@0:             $code .= sprintf("  node_%s [label=\"%s\\n%s\\n\", shape=%s%s];\n", $this->dotize($id), $id.($aliases ? ' ('.implode(', ', $aliases).')' : ''), $node['class'], $this->options['node']['shape'], $this->addAttributes($node['attributes']));
Chris@0:         }
Chris@0: 
Chris@0:         return $code;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns all edges.
Chris@0:      *
Chris@0:      * @return string A string representation of all edges
Chris@0:      */
Chris@0:     private function addEdges()
Chris@0:     {
Chris@0:         $code = '';
Chris@0:         foreach ($this->edges as $id => $edges) {
Chris@0:             foreach ($edges as $edge) {
Chris@0:                 $code .= sprintf("  node_%s -> node_%s [label=\"%s\" style=\"%s\"];\n", $this->dotize($id), $this->dotize($edge['to']), $edge['name'], $edge['required'] ? 'filled' : 'dashed');
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         return $code;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Finds all edges belonging to a specific service id.
Chris@0:      *
Chris@0:      * @param string $id        The service id used to find edges
Chris@0:      * @param array  $arguments An array of arguments
Chris@0:      * @param bool   $required
Chris@0:      * @param string $name
Chris@0:      *
Chris@0:      * @return array An array of edges
Chris@0:      */
Chris@0:     private function findEdges($id, array $arguments, $required, $name)
Chris@0:     {
Chris@0:         $edges = array();
Chris@0:         foreach ($arguments as $argument) {
Chris@0:             if ($argument instanceof Parameter) {
Chris@0:                 $argument = $this->container->hasParameter($argument) ? $this->container->getParameter($argument) : null;
Chris@0:             } elseif (is_string($argument) && preg_match('/^%([^%]+)%$/', $argument, $match)) {
Chris@0:                 $argument = $this->container->hasParameter($match[1]) ? $this->container->getParameter($match[1]) : null;
Chris@0:             }
Chris@0: 
Chris@0:             if ($argument instanceof Reference) {
Chris@0:                 if (!$this->container->has((string) $argument)) {
Chris@0:                     $this->nodes[(string) $argument] = array('name' => $name, 'required' => $required, 'class' => '', 'attributes' => $this->options['node.missing']);
Chris@0:                 }
Chris@0: 
Chris@0:                 $edges[] = array('name' => $name, 'required' => $required, 'to' => $argument);
Chris@0:             } elseif (is_array($argument)) {
Chris@0:                 $edges = array_merge($edges, $this->findEdges($id, $argument, $required, $name));
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         return $edges;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Finds all nodes.
Chris@0:      *
Chris@0:      * @return array An array of all nodes
Chris@0:      */
Chris@0:     private function findNodes()
Chris@0:     {
Chris@0:         $nodes = array();
Chris@0: 
Chris@0:         $container = $this->cloneContainer();
Chris@0: 
Chris@0:         foreach ($container->getDefinitions() as $id => $definition) {
Chris@0:             $class = $definition->getClass();
Chris@0: 
Chris@0:             if ('\\' === substr($class, 0, 1)) {
Chris@0:                 $class = substr($class, 1);
Chris@0:             }
Chris@0: 
Chris@0:             try {
Chris@0:                 $class = $this->container->getParameterBag()->resolveValue($class);
Chris@0:             } catch (ParameterNotFoundException $e) {
Chris@0:             }
Chris@0: 
Chris@0:             $nodes[$id] = array('class' => str_replace('\\', '\\\\', $class), 'attributes' => array_merge($this->options['node.definition'], array('style' => $definition->isShared() ? 'filled' : 'dotted')));
Chris@0:             $container->setDefinition($id, new Definition('stdClass'));
Chris@0:         }
Chris@0: 
Chris@0:         foreach ($container->getServiceIds() as $id) {
Chris@0:             if (array_key_exists($id, $container->getAliases())) {
Chris@0:                 continue;
Chris@0:             }
Chris@0: 
Chris@0:             if (!$container->hasDefinition($id)) {
Chris@0:                 $class = get_class('service_container' === $id ? $this->container : $container->get($id));
Chris@0:                 $nodes[$id] = array('class' => str_replace('\\', '\\\\', $class), 'attributes' => $this->options['node.instance']);
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         return $nodes;
Chris@0:     }
Chris@0: 
Chris@0:     private function cloneContainer()
Chris@0:     {
Chris@0:         $parameterBag = new ParameterBag($this->container->getParameterBag()->all());
Chris@0: 
Chris@0:         $container = new ContainerBuilder($parameterBag);
Chris@0:         $container->setDefinitions($this->container->getDefinitions());
Chris@0:         $container->setAliases($this->container->getAliases());
Chris@0:         $container->setResources($this->container->getResources());
Chris@0:         foreach ($this->container->getExtensions() as $extension) {
Chris@0:             $container->registerExtension($extension);
Chris@0:         }
Chris@0: 
Chris@0:         return $container;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns the start dot.
Chris@0:      *
Chris@0:      * @return string The string representation of a start dot
Chris@0:      */
Chris@0:     private function startDot()
Chris@0:     {
Chris@0:         return sprintf("digraph sc {\n  %s\n  node [%s];\n  edge [%s];\n\n",
Chris@0:             $this->addOptions($this->options['graph']),
Chris@0:             $this->addOptions($this->options['node']),
Chris@0:             $this->addOptions($this->options['edge'])
Chris@0:         );
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns the end dot.
Chris@0:      *
Chris@0:      * @return string
Chris@0:      */
Chris@0:     private function endDot()
Chris@0:     {
Chris@0:         return "}\n";
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Adds attributes.
Chris@0:      *
Chris@0:      * @param array $attributes An array of attributes
Chris@0:      *
Chris@0:      * @return string A comma separated list of attributes
Chris@0:      */
Chris@0:     private function addAttributes(array $attributes)
Chris@0:     {
Chris@0:         $code = array();
Chris@0:         foreach ($attributes as $k => $v) {
Chris@0:             $code[] = sprintf('%s="%s"', $k, $v);
Chris@0:         }
Chris@0: 
Chris@0:         return $code ? ', '.implode(', ', $code) : '';
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Adds options.
Chris@0:      *
Chris@0:      * @param array $options An array of options
Chris@0:      *
Chris@0:      * @return string A space separated list of options
Chris@0:      */
Chris@0:     private function addOptions(array $options)
Chris@0:     {
Chris@0:         $code = array();
Chris@0:         foreach ($options as $k => $v) {
Chris@0:             $code[] = sprintf('%s="%s"', $k, $v);
Chris@0:         }
Chris@0: 
Chris@0:         return implode(' ', $code);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Dotizes an identifier.
Chris@0:      *
Chris@0:      * @param string $id The identifier to dotize
Chris@0:      *
Chris@0:      * @return string A dotized string
Chris@0:      */
Chris@0:     private function dotize($id)
Chris@0:     {
Chris@0:         return strtolower(preg_replace('/\W/i', '_', $id));
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Compiles an array of aliases for a specified service id.
Chris@0:      *
Chris@0:      * @param string $id A service id
Chris@0:      *
Chris@0:      * @return array An array of aliases
Chris@0:      */
Chris@0:     private function getAliases($id)
Chris@0:     {
Chris@0:         $aliases = array();
Chris@0:         foreach ($this->container->getAliases() as $alias => $origin) {
Chris@0:             if ($id == $origin) {
Chris@0:                 $aliases[] = $alias;
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         return $aliases;
Chris@0:     }
Chris@0: }