/*
* Copyright 1999-2015 dangdang.com.
* <p>
* Licensed 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.
* </p>
*/
package com.dangdang.ddframe.job.executor;
import com.dangdang.ddframe.job.api.ElasticJob;
import com.dangdang.ddframe.job.api.dataflow.DataflowJob;
import com.dangdang.ddframe.job.api.simple.SimpleJob;
import com.dangdang.ddframe.job.exception.JobConfigurationException;
import com.dangdang.ddframe.job.executor.type.DataflowJobExecutor;
import com.dangdang.ddframe.job.executor.type.ScriptJobExecutor;
import com.dangdang.ddframe.job.executor.type.SimpleJobExecutor;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;
/**
* 作业执行器工厂.
*
* @author zhangliang
*/
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public final class JobExecutorFactory {
/**
* 获取作业执行器.
*
* @param elasticJob 分布式弹性作业
* @param jobFacade 作业内部服务门面服务
* @return 作业执行器
*/
@SuppressWarnings("unchecked")
public static AbstractElasticJobExecutor getJobExecutor(final ElasticJob elasticJob, final JobFacade jobFacade) {
if (null == elasticJob) {
return new ScriptJobExecutor(jobFacade);
}
if (elasticJob instanceof SimpleJob) {
return new SimpleJobExecutor((SimpleJob) elasticJob, jobFacade);
}
if (elasticJob instanceof DataflowJob) {
return new DataflowJobExecutor((DataflowJob) elasticJob, jobFacade);
}
throw new JobConfigurationException("Cannot support job type '%s'", elasticJob.getClass().getCanonicalName());
}
}