/*
* Copyright 2013 the original author or authors.
*
* 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.
*/
package org.springframework.batch.core.jsr.step.builder;
import org.springframework.batch.core.ChunkListener;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.jsr.configuration.support.BatchPropertyContext;
import org.springframework.batch.core.jsr.step.BatchletStep;
import org.springframework.batch.core.step.builder.StepBuilderException;
import org.springframework.batch.core.step.builder.StepBuilderHelper;
import org.springframework.batch.core.step.builder.TaskletStepBuilder;
import org.springframework.batch.core.step.tasklet.TaskletStep;
import org.springframework.batch.item.ItemStream;
import org.springframework.batch.repeat.support.RepeatTemplate;
import org.springframework.batch.repeat.support.TaskExecutorRepeatTemplate;
/**
* Extension of the {@link TaskletStepBuilder} that uses a {@link BatchletStep} instead
* of a {@link TaskletStep}.
*
* @author Michael Minella
* @since 3.0
*/
public class JsrBatchletStepBuilder extends TaskletStepBuilder {
private BatchPropertyContext batchPropertyContext;
/**
* @param context used to resolve lazy binded properties
*/
public void setBatchPropertyContext(BatchPropertyContext context) {
this.batchPropertyContext = context;
}
public JsrBatchletStepBuilder(StepBuilderHelper<? extends StepBuilderHelper<?>> parent) {
super(parent);
}
/**
* Build the step from the components collected by the fluent setters. Delegates first to {@link #enhance(Step)} and
* then to {@link #createTasklet()} in subclasses to create the actual tasklet.
*
* @return a tasklet step fully configured and read to execute
*/
@Override
public TaskletStep build() {
registerStepListenerAsChunkListener();
BatchletStep step = new BatchletStep(getName(), batchPropertyContext);
super.enhance(step);
step.setChunkListeners(chunkListeners.toArray(new ChunkListener[0]));
if (getTransactionAttribute() != null) {
step.setTransactionAttribute(getTransactionAttribute());
}
if (getStepOperations() == null) {
stepOperations(new RepeatTemplate());
if (getTaskExecutor() != null) {
TaskExecutorRepeatTemplate repeatTemplate = new TaskExecutorRepeatTemplate();
repeatTemplate.setTaskExecutor(getTaskExecutor());
repeatTemplate.setThrottleLimit(getThrottleLimit());
stepOperations(repeatTemplate);
}
((RepeatTemplate) getStepOperations()).setExceptionHandler(getExceptionHandler());
}
step.setStepOperations(getStepOperations());
step.setTasklet(createTasklet());
step.setStreams(getStreams().toArray(new ItemStream[0]));
try {
step.afterPropertiesSet();
}
catch (Exception e) {
throw new StepBuilderException(e);
}
return step;
}
}