1 /*
2 * Copyright 2007 Kasper B. Graversen
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.supercsv.cellprocessor.time;
17
18 import java.time.Duration;
19
20 import org.supercsv.cellprocessor.CellProcessorAdaptor;
21 import org.supercsv.cellprocessor.ift.CellProcessor;
22 import org.supercsv.exception.SuperCsvCellProcessorException;
23 import org.supercsv.util.CsvContext;
24
25 /**
26 * Converts a Duration to a String.
27 *
28 * For example, "PT1M12.345S" represents 1 minute, 12 seconds and 345
29 * milliseconds.
30 *
31 * @author Ludovico Fischer
32 * @since 2.4.0
33 */
34 public class FmtDuration extends CellProcessorAdaptor {
35
36 /**
37 * Constructs a new <tt>FmtDuration</tt> processor, which formats a
38 * Duration as a String in the ISO 8601 duration format,
39 * in the same way as {@link Duration#toString()}
40 *
41 * @see Duration#toString()
42 */
43 public FmtDuration() {
44 }
45
46 /**
47 * Constructs a new <tt>FmtDuration</tt> processor, which formats a
48 * Duration as a String, then calls the next processor in the chain.
49 *
50 * @param next next processor in the chain
51 * @throws NullPointerException if next is null
52 */
53 public FmtDuration(final CellProcessor next) {
54 super(next);
55 }
56
57 /**
58 * {@inheritDoc}
59 *
60 * @throws SuperCsvCellProcessorException if value is null or not a Duration
61 */
62 public Object execute(final Object value, final CsvContext context) {
63 validateInputNotNull(value, context);
64 if( !(value instanceof Duration) ) {
65 throw new SuperCsvCellProcessorException(Duration.class, value, context, this);
66 }
67 final Duration duration = (Duration) value;
68 final String result = duration.toString();
69 return next.execute(result, context);
70 }
71 }