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