org.springframework.batch.item.file.mapping.DefaultLineMapper.java Source code

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Here is the source code for org.springframework.batch.item.file.mapping.DefaultLineMapper.java

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/*
 * 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");
    }

}