99 lines
3.3 KiB
PHP
99 lines
3.3 KiB
PHP
<?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 a set of pre-built Amazon EMR Hadoop steps.
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*
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* @version 2011.05.03
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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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* @link http://hadoop.apache.org Apache Hadoop
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*/
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class CFHadoopStep extends CFHadoopBase
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{
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/**
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* When ran as the first step in your job flow, enables the Hadoop debugging UI in the AWS
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* Management Console.
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*
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* @return array A standard array that is intended to be passed into a <CFStepConfig> object.
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*/
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public static function enable_debugging()
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{
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return self::script_runner('s3://us-east-1.elasticmapreduce/libs/state-pusher/0.1/fetch');
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}
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/**
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* Step that installs Hive on your job flow.
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*
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* @return array A standard array that is intended to be passed into a <CFStepConfig> object.
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* @link http://hive.apache.org Apache Hive
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*/
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public static function install_hive()
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{
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return self::hive_pig_script('hive', '--install-hive');
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}
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/**
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* Step that runs a Hive script on your job flow.
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*
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* @param string $script (Required) The script to run with `script-runner.jar`.
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* @param array $args (Optional) An indexed array of arguments to pass to the script.
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* @return array A standard array that is intended to be passed into a <CFStepConfig> object.
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* @link http://hive.apache.org Apache Hive
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*/
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public static function run_hive_script($script, $args = null)
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{
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if (!$args) $args = array();
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$args = is_array($args) ? $args : array($args);
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$args = array_merge(array('--run-hive-script', '--args', '-f', $script), $args);
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return self::hive_pig_script('hive', $args);
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}
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/**
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* Step that installs Pig on your job flow.
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*
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* @return array A standard array that is intended to be passed into a <CFStepConfig> object.
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* @link http://pig.apache.org Apache Pig
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*/
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public static function install_pig()
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{
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return self::hive_pig_script('pig', '--install-pig');
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}
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/**
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* Step that runs a Pig script on your job flow.
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*
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* @param string $script (Required) The script to run with `script-runner.jar`.
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* @param array $args (Optional) An indexed array of arguments to pass to the script.
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* @return array A standard array that is intended to be passed into a <CFStepConfig> object.
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* @link http://pig.apache.org Apache Pig
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*/
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public static function run_pig_script($script, $args = null)
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{
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if (!$args) $args = array();
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$args = is_array($args) ? $args : array($args);
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$args = array_merge(array('--run-pig-script', '--args', '-f', $script), $args);
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return self::hive_pig_script('pig', $args);
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}
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}
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