/**
* 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.tajo.service;
import org.apache.tajo.conf.TajoConf;
import org.apache.tajo.util.ReflectionUtil;
public class ServiceTrackerFactory {
public static ServiceTracker get(TajoConf conf) {
Class<ServiceTracker> trackerClass;
try {
if (conf.getBoolVar(TajoConf.ConfVars.TAJO_MASTER_HA_ENABLE)) {
trackerClass = (Class<ServiceTracker>) conf.getClassVar(TajoConf.ConfVars.HA_SERVICE_TRACKER_CLASS);
} else {
trackerClass = (Class<ServiceTracker>) conf.getClassVar(TajoConf.ConfVars.DEFAULT_SERVICE_TRACKER_CLASS);
}
return ReflectionUtil.newInstance(trackerClass, conf);
} catch (Throwable t) {
throw new RuntimeException(t);
}
}
}