org.supercsv.cellprocessor.Trim Maven / Gradle / Ivy
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/*
* Copyright 2007 Kasper B. Graversen
*
* 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
*
* http://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.supercsv.cellprocessor;
import org.supercsv.cellprocessor.ift.BoolCellProcessor;
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.exception.SuperCsvCellProcessorException;
import org.supercsv.util.CsvContext;
/**
* Ensure that Strings or String-representations of objects are trimmed (contain no surrounding whitespace).
*
* Prior to 2.0.0, this processor truncated Strings - this functionality can now be found in the {@link Truncate}
* processor.
*
* @author James Bassett
*/
public class Trim extends CellProcessorAdaptor 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 StringCellProcessor next) {
super(next);
}
/**
* {@inheritDoc}
*
* @throws SuperCsvCellProcessorException
* if value is null
*/
public Object execute(final Object value, final CsvContext context) {
validateInputNotNull(value, context);
final String result = value.toString().trim();
return next.execute(result, context);
}
}