| 1 | /* |
| 2 | * Copyright 2006-2007 the original author or authors. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.springframework.batch.item.file.mapping; |
| 18 | |
| 19 | import org.springframework.batch.item.file.LineMapper; |
| 20 | import org.springframework.batch.item.file.transform.FieldSet; |
| 21 | import org.springframework.batch.item.file.transform.LineTokenizer; |
| 22 | import org.springframework.beans.factory.InitializingBean; |
| 23 | import org.springframework.util.Assert; |
| 24 | |
| 25 | /** |
| 26 | * Two-phase {@link LineMapper} implementation consisting of tokenization of the line into {@link FieldSet} followed by |
| 27 | * mapping to item. If finer grained control of exceptions is needed, the {@link LineMapper} interface should be |
| 28 | * implemented directly. |
| 29 | * |
| 30 | * @author Robert Kasanicky |
| 31 | * @author Lucas Ward |
| 32 | * |
| 33 | * @param <T> type of the item |
| 34 | */ |
| 35 | public class DefaultLineMapper<T> implements LineMapper<T>, InitializingBean { |
| 36 | |
| 37 | private LineTokenizer tokenizer; |
| 38 | |
| 39 | private FieldSetMapper<T> fieldSetMapper; |
| 40 | |
| 41 | @Override |
| 42 | public T mapLine(String line, int lineNumber) throws Exception { |
| 43 | return fieldSetMapper.mapFieldSet(tokenizer.tokenize(line)); |
| 44 | } |
| 45 | |
| 46 | public void setLineTokenizer(LineTokenizer tokenizer) { |
| 47 | this.tokenizer = tokenizer; |
| 48 | } |
| 49 | |
| 50 | public void setFieldSetMapper(FieldSetMapper<T> fieldSetMapper) { |
| 51 | this.fieldSetMapper = fieldSetMapper; |
| 52 | } |
| 53 | |
| 54 | @Override |
| 55 | public void afterPropertiesSet() { |
| 56 | Assert.notNull(tokenizer, "The LineTokenizer must be set"); |
| 57 | Assert.notNull(fieldSetMapper, "The FieldSetMapper must be set"); |
| 58 | } |
| 59 | |
| 60 | } |