spring-batch DefaultLineMapper 源码
spring-batch DefaultLineMapper 代码
文件路径：/spring-batch-infrastructure/src/main/java/org/springframework/batch/item/file/mapping/DefaultLineMapper.java
/*
* Copyright 2006-2007 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.item.file.mapping;
import org.springframework.batch.item.file.LineMapper;
import org.springframework.batch.item.file.transform.FieldSet;
import org.springframework.batch.item.file.transform.LineTokenizer;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.util.Assert;
/**
* Two-phase {@link LineMapper} implementation consisting of tokenization of the line into
* {@link FieldSet} followed by mapping to item. If finer grained control of exceptions is
* needed, the {@link LineMapper} interface should be implemented directly.
*
* @author Robert Kasanicky
* @author Lucas Ward
* @param <T> type of the item
*/
public class DefaultLineMapper<T> implements LineMapper<T>, InitializingBean {
private LineTokenizer tokenizer;
private FieldSetMapper<T> fieldSetMapper;
@Override
public T mapLine(String line, int lineNumber) throws Exception {
return fieldSetMapper.mapFieldSet(tokenizer.tokenize(line));
}
public void setLineTokenizer(LineTokenizer tokenizer) {
this.tokenizer = tokenizer;
}
public void setFieldSetMapper(FieldSetMapper<T> fieldSetMapper) {
this.fieldSetMapper = fieldSetMapper;
}
@Override
public void afterPropertiesSet() {
Assert.notNull(tokenizer, "The LineTokenizer must be set");
Assert.notNull(fieldSetMapper, "The FieldSetMapper must be set");
}
}
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