/*
* 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 gobblin.util.concurrent;
import org.apache.commons.lang.StringUtils;
import com.google.common.base.Enums;
import lombok.AllArgsConstructor;
import lombok.Getter;
/**
* The types of supported {@link TaskScheduler}s.
*
* @author joelbaranick
*/
@AllArgsConstructor
public enum TaskSchedulerType {
/**
* A {@link TaskScheduler} based on a {@link java.util.concurrent.ScheduledExecutorService}. This
* is the default {@link TaskScheduler}.
*/
SCHEDULEDEXECUTORSERVICE(ScheduledExecutorServiceTaskScheduler.class),
/**
* A {@link TaskScheduler} based on a {@link org.jboss.netty.util.HashedWheelTimer}.
*/
HASHEDWHEELTIMER(HashedWheelTimerTaskScheduler.class);
@Getter
private final Class<? extends TaskScheduler> taskSchedulerClass;
/**
* Return the {@link TaskSchedulerType} with the specified name. If the specified name
* does not map to a {@link TaskSchedulerType}, then {@link #SCHEDULEDEXECUTORSERVICE}
* will be returned.
*
* @param name the name of the {@link TaskSchedulerType}
* @return the specified {@link TaskSchedulerType} or {@link #SCHEDULEDEXECUTORSERVICE}
*/
public static TaskSchedulerType parse(String name) {
if (StringUtils.isEmpty(name)) {
return SCHEDULEDEXECUTORSERVICE;
}
return Enums.getIfPresent(TaskSchedulerType.class, name.toUpperCase()).or(SCHEDULEDEXECUTORSERVICE);
}
}