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