org.supercsv.ext.cellprocessor.Trim Maven / Gradle / Ivy
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/*
* Trim.java
* created in 2013/04/19
*
* (C) Copyright 2003-2013 GreenDay Project. All rights reserved.
*/
package org.supercsv.ext.cellprocessor;
import org.supercsv.cellprocessor.ift.BoolCellProcessor;
import org.supercsv.cellprocessor.ift.CellProcessor;
import org.supercsv.cellprocessor.ift.DateCellProcessor;
import org.supercsv.cellprocessor.ift.DoubleCellProcessor;
import org.supercsv.cellprocessor.ift.LongCellProcessor;
import org.supercsv.cellprocessor.ift.StringCellProcessor;
import org.supercsv.ext.exception.SuperCsvCellProcessorException;
import org.supercsv.util.CSVContext;
/**
* Ensure that Strings or String-representations of objects are trimmed (contain no surrounding whitespace).
* can be used {@link StringCellProcessor} but also{@link CellProcessor}.
*
* @version 1.1
* @since 1.0
* @author T.TSUCHIE
*
*/
public class Trim extends ExtCellProcessorAdaptor implements BoolCellProcessor, DateCellProcessor, DoubleCellProcessor,
LongCellProcessor, StringCellProcessor {
/**
* Constructs a new Trim processor, which trims a String to ensure it has no surrounding whitespace.
*/
public Trim() {
super();
}
/**
* Constructs a new Trim processor, which trims a String to ensure it has no surrounding whitespace then
* calls the next processor in the chain.
*
* @param next the next processor in the chain
* @throws NullPointerException if next is null
*/
public Trim(final CellProcessor next) {
super(next);
}
/**
* {@inheritDoc}
*
* @throws SuperCsvCellProcessorException if value is null
*/
@Override
public Object execute(final Object value, final CSVContext context) {
validateInputNotNull(value, context);
final String result = value.toString().trim();
return next.execute(result, context);
}
}