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 import java.time.format.DateTimeParseException;
20
21 import org.supercsv.cellprocessor.CellProcessorAdaptor;
22 import org.supercsv.cellprocessor.ift.CellProcessor;
23 import org.supercsv.exception.SuperCsvCellProcessorException;
24 import org.supercsv.util.CsvContext;
25
26 /**
27 * Converts a String to a Duration.
28 * The String should be in the ISO 8601 duration format as defined in
29 * {@link Duration#parse(CharSequence)}
30 * For example, "PT1M12.345S" represents 1 minute, 12 seconds and 345
31 * milliseconds.
32 *
33 * @author Ludovico Fischer
34 * @since 2.4.0
35 */
36 public class ParseDuration extends CellProcessorAdaptor {
37
38 /**
39 * Constructs a new <tt>ParseDuration</tt> processor, which parses a String
40 * as a Duration.
41 */
42 public ParseDuration() {
43 }
44
45 /**
46 * Constructs a new <tt>ParseDuration</tt> processor, which parses a String
47 * as a Duration, then calls the next processor in the chain.
48 *
49 * @param next the next processor in the chain
50 */
51 public ParseDuration(final CellProcessor next) {
52 super(next);
53 }
54
55 /**
56 * {@inheritDoc}
57 *
58 * @throws SuperCsvCellProcessorException if value is null or is not a String
59 */
60 public Object execute(final Object value, final CsvContext context) {
61 validateInputNotNull(value, context);
62 if( !(value instanceof String) ) {
63 throw new SuperCsvCellProcessorException(String.class, value, context, this);
64 }
65 final Duration result;
66 try {
67 result = Duration.parse((String) value);
68 }
69 catch(DateTimeParseException e) {
70 throw new SuperCsvCellProcessorException("Failed to parse value as a Duration", context, this, e);
71 }
72 return next.execute(result, context);
73 }
74
75 }