001/* 002 * Copyright 2006-2007 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 */ 016 017package org.springframework.batch.item.file.mapping; 018 019import org.springframework.batch.item.file.LineMapper; 020import org.springframework.batch.item.file.transform.FieldSet; 021import org.springframework.batch.item.file.transform.LineTokenizer; 022import org.springframework.beans.factory.InitializingBean; 023import org.springframework.util.Assert; 024 025/** 026 * Two-phase {@link LineMapper} implementation consisting of tokenization of the line into {@link FieldSet} followed by 027 * mapping to item. If finer grained control of exceptions is needed, the {@link LineMapper} interface should be 028 * implemented directly. 029 * 030 * @author Robert Kasanicky 031 * @author Lucas Ward 032 * 033 * @param <T> type of the item 034 */ 035public class DefaultLineMapper<T> implements LineMapper<T>, InitializingBean { 036 037 private LineTokenizer tokenizer; 038 039 private FieldSetMapper<T> fieldSetMapper; 040 041 @Override 042 public T mapLine(String line, int lineNumber) throws Exception { 043 return fieldSetMapper.mapFieldSet(tokenizer.tokenize(line)); 044 } 045 046 public void setLineTokenizer(LineTokenizer tokenizer) { 047 this.tokenizer = tokenizer; 048 } 049 050 public void setFieldSetMapper(FieldSetMapper<T> fieldSetMapper) { 051 this.fieldSetMapper = fieldSetMapper; 052 } 053 054 @Override 055 public void afterPropertiesSet() { 056 Assert.notNull(tokenizer, "The LineTokenizer must be set"); 057 Assert.notNull(fieldSetMapper, "The FieldSetMapper must be set"); 058 } 059 060}