/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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.
*/
package org.apache.hadoop.fi;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.HdfsConfiguration;
/**
* This class wraps the logic around fault injection configuration file
* Default file is expected to be found in src/test/fi-site.xml
* This default file should be copied by JUnit Ant's tasks to
* build/test/extraconf folder before tests are ran
* An alternative location can be set through
* -Dfi.config=<file_name>
*/
public class FiConfig {
private static final String CONFIG_PARAMETER = ProbabilityModel.FPROB_NAME + "config";
private static final String DEFAULT_CONFIG = "fi-site.xml";
private static Configuration conf;
static {
init();
}
protected static void init () {
if (conf == null) {
conf = new HdfsConfiguration(false);
String configName = System.getProperty(CONFIG_PARAMETER, DEFAULT_CONFIG);
conf.addResource(configName);
}
}
/**
* Method provides access to local Configuration
*
* @return Configuration initialized with fault injection's parameters
*/
public static Configuration getConfig() {
return conf;
}
}