org.springframework.batch.core.step.NoWorkFoundStepExecutionListener Maven / Gradle / Ivy

/*
 * Copyright 2002-2019 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
 *
 *      https://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.step;

import org.springframework.batch.core.ExitStatus;
import org.springframework.batch.core.StepExecution;
import org.springframework.batch.core.listener.StepExecutionListenerSupport;
import org.springframework.lang.Nullable;

/**
 * Fails the step if no items have been processed ( item count is 0).
 *
 * @author Robert Kasanicky
 */
public class NoWorkFoundStepExecutionListener extends StepExecutionListenerSupport {

	@Nullable
	@Override
	public ExitStatus afterStep(StepExecution stepExecution) {
		if (stepExecution.getReadCount() == 0) {
			return ExitStatus.FAILED;
		}
		return null;
	}

}