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