org.supercsv.cellprocessor.joda.ParseDuration.java Source code

Introduction

Here is the source code for org.supercsv.cellprocessor.joda.ParseDuration.java

Source

/*
 * 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.joda;

import org.joda.time.Duration;
import org.supercsv.cellprocessor.CellProcessorAdaptor;
import org.supercsv.cellprocessor.ift.CellProcessor;
import org.supercsv.exception.SuperCsvCellProcessorException;
import org.supercsv.util.CsvContext;

/**
 * Converts a String to a Joda Duration.
 * 
 * The String should be in the ISO8601 duration format including only seconds
 * and milliseconds.
 * <p>
 * For example, "PT72.345S" represents 1 minute, 12 seconds and 345
 * milliseconds.
 * <p>
 * 
 * @since 2.3.0
 * @author James Bassett
 */
public class ParseDuration extends CellProcessorAdaptor {

    /**
     * Constructs a new <tt>ParseDuration</tt> processor, which parses a String
     * as a Joda Duration.
     */
    public ParseDuration() {
    }

    /**
     * Constructs a new <tt>ParseDuration</tt> processor, which parses a String
     * as a Joda Duration, then calls the next processor in the chain.
     * 
     * @param next
     *            the next processor in the chain
     */
    public ParseDuration(final CellProcessor next) {
        super(next);
    }

    /**
     * {@inheritDoc}
     * 
     * @throws SuperCsvCellProcessorException
     *             if value is null or is not a String
     */
    public Object execute(final Object value, final CsvContext context) {
        validateInputNotNull(value, context);
        if (!(value instanceof String)) {
            throw new SuperCsvCellProcessorException(String.class, value, context, this);
        }
        final Duration result;
        try {
            result = Duration.parse((String) value);
        } catch (IllegalArgumentException e) {
            throw new SuperCsvCellProcessorException("Failed to parse value as a Duration", context, this, e);
        }
        return next.execute(result, context);
    }

}