92 lines
2.5 KiB
PHP
92 lines
2.5 KiB
PHP
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<?php
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/*
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* Copyright 2010-2012 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License").
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* You may not use this file except in compliance with the License.
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* A copy of the License is located at
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*
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* http://aws.amazon.com/apache2.0
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*
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* or in the "license" file accompanying this file. This file is distributed
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* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
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* express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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/*%******************************************************************************************%*/
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// CLASS
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/**
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* Contains functionality for simplifying Amazon EMR Hadoop steps.
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*
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* @version 2010.11.16
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* @license See the included NOTICE.md file for more information.
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* @copyright See the included NOTICE.md file for more information.
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* @link http://aws.amazon.com/php/ PHP Developer Center
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*/
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class CFStepConfig
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{
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/**
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* Stores the configuration map.
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*/
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public $config;
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/**
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* Constructs a new instance of this class.
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*
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* @param array $config (Required) An associative array representing the Hadoop step configuration.
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* @return $this A reference to the current instance.
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*/
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public function __construct($config)
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{
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// Handle Hadoop jar arguments
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if (isset($config['HadoopJarStep']['Args']) && $args = $config['HadoopJarStep']['Args'])
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{
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$config['HadoopJarStep']['Args'] = is_array($args) ? $args : array($args);
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}
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$this->config = $config;
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}
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/**
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* Constructs a new instance of this class, and allows chaining.
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*
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* @param array $config (Required) An associative array representing the Hadoop step configuration.
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* @return $this A reference to the current instance.
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*/
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public static function init($config)
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{
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if (version_compare(PHP_VERSION, '5.3.0', '<'))
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{
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throw new Exception('PHP 5.3 or newer is required to instantiate a new class with CLASS::init().');
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}
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$self = get_called_class();
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return new $self($config);
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}
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/**
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* Returns a JSON representation of the object when typecast as a string.
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*
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* @return string A JSON representation of the object.
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* @link http://www.php.net/manual/en/language.oop5.magic.php#language.oop5.magic.tostring PHP Magic Methods
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*/
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public function __toString()
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{
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return json_encode($this->config);
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}
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/**
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* Returns the configuration data.
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*
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* @return array The configuration data.
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*/
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public function get_config()
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{
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return $this->config;
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}
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}
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