84 lines
2.1 KiB
PHP
84 lines
2.1 KiB
PHP
<?php
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/**
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* @see https://github.com/zendframework/zend-config for the canonical source repository
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* @copyright Copyright (c) 2005-2017 Zend Technologies USA Inc. (http://www.zend.com)
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* @license https://github.com/zendframework/zend-config/blob/master/LICENSE.md New BSD License
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*/
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namespace Zend\Config\Writer;
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use Zend\Config\Exception;
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class Yaml extends AbstractWriter
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{
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/**
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* YAML encoder callback
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*
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* @var callable
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*/
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protected $yamlEncoder;
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/**
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* Constructor
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*
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* @param callable|string|null $yamlEncoder
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*/
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public function __construct($yamlEncoder = null)
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{
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if ($yamlEncoder !== null) {
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$this->setYamlEncoder($yamlEncoder);
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} else {
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if (function_exists('yaml_emit')) {
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$this->setYamlEncoder('yaml_emit');
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}
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}
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}
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/**
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* Get callback for decoding YAML
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*
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* @return callable
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*/
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public function getYamlEncoder()
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{
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return $this->yamlEncoder;
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}
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/**
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* Set callback for decoding YAML
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*
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* @param callable $yamlEncoder the decoder to set
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* @return self
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* @throws Exception\InvalidArgumentException
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*/
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public function setYamlEncoder($yamlEncoder)
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{
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if (! is_callable($yamlEncoder)) {
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throw new Exception\InvalidArgumentException('Invalid parameter to setYamlEncoder() - must be callable');
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}
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$this->yamlEncoder = $yamlEncoder;
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return $this;
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}
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/**
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* processConfig(): defined by AbstractWriter.
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*
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* @param array $config
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* @return string
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* @throws Exception\RuntimeException
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*/
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public function processConfig(array $config)
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{
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if (null === $this->getYamlEncoder()) {
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throw new Exception\RuntimeException("You didn't specify a Yaml callback encoder");
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}
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$config = call_user_func($this->getYamlEncoder(), $config);
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if (null === $config) {
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throw new Exception\RuntimeException("Error generating YAML data");
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}
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return $config;
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}
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}
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