001/* 002 * Copyright 2006-2013 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package org.springframework.batch.core.configuration.support; 017 018import org.springframework.batch.core.Job; 019import org.springframework.batch.core.configuration.JobFactory; 020import org.springframework.context.ApplicationContext; 021import org.springframework.context.ConfigurableApplicationContext; 022 023/** 024 * A {@link JobFactory} that creates its own {@link ApplicationContext} and 025 * pulls a bean out when asked to create a {@link Job}. 026 * 027 * @author Dave Syer 028 * 029 */ 030public class ApplicationContextJobFactory implements JobFactory { 031 032 private final Job job; 033 034 /** 035 * @param jobName the id of the {@link Job} in the application context to be 036 * created 037 * @param applicationContextFactory a factory for an application context 038 * containing a job with the job name provided 039 */ 040 public ApplicationContextJobFactory(String jobName, ApplicationContextFactory applicationContextFactory) { 041 @SuppressWarnings("resource") 042 ConfigurableApplicationContext context = applicationContextFactory.createApplicationContext(); 043 this.job = context.getBean(jobName, Job.class); 044 } 045 046 /** 047 * Create an {@link ApplicationContext} from the factory provided and pull 048 * out a bean with the name given during initialization. 049 * 050 * @see org.springframework.batch.core.configuration.JobFactory#createJob() 051 */ 052 @Override 053 public final Job createJob() { 054 return job; 055 } 056 057 /** 058 * Just return the name of instance passed in on initialization. 059 * 060 * @see JobFactory#getJobName() 061 */ 062 @Override 063 public String getJobName() { 064 return job.getName(); 065 } 066 067}