001/* 002 * Copyright 2014 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.sample.jsr352; 017 018import java.util.ArrayList; 019import java.util.List; 020import javax.batch.api.chunk.AbstractItemReader; 021 022import org.apache.commons.logging.Log; 023import org.apache.commons.logging.LogFactory; 024 025/** 026 * <p> 027 * Sample {@link javax.batch.api.chunk.ItemReader} implementation. 028 * </p> 029 * 030 * @since 3.0 031 * @author Chris Schaefer 032 */ 033@SuppressWarnings("serial") 034public class JsrSampleItemReader extends AbstractItemReader { 035 private static final Log LOG = LogFactory.getLog(JsrSampleItemReader.class); 036 037 private List<String> people = new ArrayList<String>() {{ 038 add("John"); 039 add("Joe"); 040 add("Mark"); 041 add("Jane"); 042 }}; 043 044 @Override 045 public Object readItem() throws Exception { 046 String person = null; 047 048 if(people.iterator().hasNext()) { 049 person = people.iterator().next(); 050 people.remove(person); 051 052 LOG.info("Read person: " + person); 053 } 054 055 return person; 056 } 057}