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<?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\Config\Definition\Dumper;
use Symfony\Component\Config\Definition\ConfigurationInterface;
use Symfony\Component\Config\Definition\NodeInterface;
use Symfony\Component\Config\Definition\ArrayNode;
use Symfony\Component\Config\Definition\EnumNode;
use Symfony\Component\Config\Definition\PrototypedArrayNode;
/**
* Dumps a XML reference configuration for the given configuration/node instance.
*
* @author Wouter J <waldio.webdesign@gmail.com>
*/
class XmlReferenceDumper
{
private $reference;
public function dump(ConfigurationInterface $configuration, $namespace = null)
{
return $this->dumpNode($configuration->getConfigTreeBuilder()->buildTree(), $namespace);
}
public function dumpNode(NodeInterface $node, $namespace = null)
{
$this->reference = '';
$this->writeNode($node, 0, true, $namespace);
$ref = $this->reference;
$this->reference = null;
return $ref;
}
/**
* @param NodeInterface $node
* @param integer $depth
* @param Boolean $root If the node is the root node
* @param string $namespace The namespace of the node
*/
private function writeNode(NodeInterface $node, $depth = 0, $root = false, $namespace = null)
{
$rootName = ($root ? 'config' : $node->getName());
$rootNamespace = ($namespace ?: ($root ? 'http://example.org/schema/dic/'.$node->getName() : null));
// xml remapping
if ($node->getParent()) {
$remapping = array_filter($node->getParent()->getXmlRemappings(), function ($mapping) use ($rootName) {
return $rootName === $mapping[1];
});
if (count($remapping)) {
list($singular, $plural) = current($remapping);
$rootName = $singular;
}
}
$rootName = str_replace('_', '-', $rootName);
$rootAttributes = array();
$rootAttributeComments = array();
$rootChildren = array();
$rootComments = array();
if ($node instanceof ArrayNode) {
$children = $node->getChildren();
// comments about the root node
if ($rootInfo = $node->getInfo()) {
$rootComments[] = $rootInfo;
}
if ($rootNamespace) {
$rootComments[] = 'Namespace: '.$rootNamespace;
}
// render prototyped nodes
if ($node instanceof PrototypedArrayNode) {
array_unshift($rootComments, 'prototype');
if ($key = $node->getKeyAttribute()) {
$rootAttributes[$key] = str_replace('-', ' ', $rootName).' '.$key;
}
$prototype = $node->getPrototype();
if ($prototype instanceof ArrayNode) {
$children = $prototype->getChildren();
} else {
if ($prototype->hasDefaultValue()) {
$prototypeValue = $prototype->getDefaultValue();
} else {
switch (get_class($prototype)) {
case 'Symfony\Component\Config\Definition\ScalarNode':
$prototypeValue = 'scalar value';
break;
case 'Symfony\Component\Config\Definition\FloatNode':
case 'Symfony\Component\Config\Definition\IntegerNode':
$prototypeValue = 'numeric value';
break;
case 'Symfony\Component\Config\Definition\BooleanNode':
$prototypeValue = 'true|false';
break;
case 'Symfony\Component\Config\Definition\EnumNode':
$prototypeValue = implode('|', array_map('json_encode', $prototype->getValues()));
break;
default:
$prototypeValue = 'value';
}
}
}
}
// get attributes and elements
foreach ($children as $child) {
if (!$child instanceof ArrayNode) {
// get attributes
// metadata
$name = str_replace('_', '-', $child->getName());
$value = '%%%%not_defined%%%%'; // use a string which isn't used in the normal world
// comments
$comments = array();
if ($info = $child->getInfo()) {
$comments[] = $info;
}
if ($example = $child->getExample()) {
$comments[] = 'Example: '.$example;
}
if ($child->isRequired()) {
$comments[] = 'Required';
}
if ($child instanceof EnumNode) {
$comments[] = 'One of '.implode('; ', array_map('json_encode', $child->getValues()));
}
if (count($comments)) {
$rootAttributeComments[$name] = implode(";\n", $comments);
}
// default values
if ($child->hasDefaultValue()) {
$value = $child->getDefaultValue();
}
// append attribute
$rootAttributes[$name] = $value;
} else {
// get elements
$rootChildren[] = $child;
}
}
}
// render comments
// root node comment
if (count($rootComments)) {
foreach ($rootComments as $comment) {
$this->writeLine('<!-- '.$comment.' -->', $depth);
}
}
// attribute comments
if (count($rootAttributeComments)) {
foreach ($rootAttributeComments as $attrName => $comment) {
$commentDepth = $depth + 4 + strlen($attrName) + 2;
$commentLines = explode("\n", $comment);
$multiline = (count($commentLines) > 1);
$comment = implode(PHP_EOL.str_repeat(' ', $commentDepth), $commentLines);
if ($multiline) {
$this->writeLine('<!--', $depth);
$this->writeLine($attrName.': '.$comment, $depth + 4);
$this->writeLine('-->', $depth);
} else {
$this->writeLine('<!-- '.$attrName.': '.$comment.' -->', $depth);
}
}
}
// render start tag + attributes
$rootIsVariablePrototype = isset($prototypeValue);
$rootIsEmptyTag = (0 === count($rootChildren) && !$rootIsVariablePrototype);
$rootOpenTag = '<'.$rootName;
if (1 >= ($attributesCount = count($rootAttributes))) {
if (1 === $attributesCount) {
$rootOpenTag .= sprintf(' %s="%s"', current(array_keys($rootAttributes)), $this->writeValue(current($rootAttributes)));
}
$rootOpenTag .= $rootIsEmptyTag ? ' />' : '>';
if ($rootIsVariablePrototype) {
$rootOpenTag .= $prototypeValue.'</'.$rootName.'>';
}
$this->writeLine($rootOpenTag, $depth);
} else {
$this->writeLine($rootOpenTag, $depth);
$i = 1;
foreach ($rootAttributes as $attrName => $attrValue) {
$attr = sprintf('%s="%s"', $attrName, $this->writeValue($attrValue));
$this->writeLine($attr, $depth + 4);
if ($attributesCount === $i++) {
$this->writeLine($rootIsEmptyTag ? '/>' : '>', $depth);
if ($rootIsVariablePrototype) {
$rootOpenTag .= $prototypeValue.'</'.$rootName.'>';
}
}
}
}
// render children tags
foreach ($rootChildren as $child) {
$this->writeLine('');
$this->writeNode($child, $depth + 4);
}
// render end tag
if (!$rootIsEmptyTag && !$rootIsVariablePrototype) {
$this->writeLine('');
$rootEndTag = '</'.$rootName.'>';
$this->writeLine($rootEndTag, $depth);
}
}
/**
* Outputs a single config reference line
*
* @param string $text
* @param int $indent
*/
private function writeLine($text, $indent = 0)
{
$indent = strlen($text) + $indent;
$format = '%'.$indent.'s';
$this->reference .= sprintf($format, $text)."\n";
}
/**
* Renders the string conversion of the value.
*
* @param mixed $value
*
* @return string
*/
private function writeValue($value)
{
if ('%%%%not_defined%%%%' === $value) {
return '';
}
if (is_string($value) || is_numeric($value)) {
return $value;
}
if (false === $value) {
return 'false';
}
if (true === $value) {
return 'true';
}
if (null === $value) {
return 'null';
}
if (empty($value)) {
return '';
}
if (is_array($value)) {
return implode(',', $value);
}
}
}