1 /*
2 * ObjectLab, http://www.objectlab.co.uk/open is sponsoring the ObjectLab Kit.
3 *
4 * Based in London, we are world leaders in the design and development
5 * of bespoke applications for the securities financing markets.
6 *
7 * <a href="http://www.objectlab.co.uk/open">Click here to learn more</a>
8 * ___ _ _ _ _ _
9 * / _ \| |__ (_) ___ ___| |_| | __ _| |__
10 * | | | | '_ \| |/ _ \/ __| __| | / _` | '_ \
11 * | |_| | |_) | | __/ (__| |_| |__| (_| | |_) |
12 * \___/|_.__// |\___|\___|\__|_____\__,_|_.__/
13 * |__/
14 *
15 * www.ObjectLab.co.uk
16 *
17 * $Id$
18 *
19 * Copyright 2006 the original author or authors.
20 *
21 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
22 * use this file except in compliance with the License. You may obtain a copy of
23 * the License at
24 *
25 * http://www.apache.org/licenses/LICENSE-2.0
26 *
27 * Unless required by applicable law or agreed to in writing, software
28 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
29 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
30 * License for the specific language governing permissions and limitations under
31 * the License.
32 */
33 package net.objectlab.kit.datecalc.joda;
34
35 import net.objectlab.kit.datecalc.common.DateCalculator;
36 import net.objectlab.kit.datecalc.common.HolidayHandler;
37 import net.objectlab.kit.datecalc.common.HolidayHandlerType;
38
39 import org.joda.time.YearMonthDay;
40
41 /**
42 * A modified following handler will move the date forward if it falls on a non
43 * working day BUT, if the new date falls into another month, it will revert to
44 * moving backward until it finds a working day.
45 *
46 * @author Benoit Xhenseval
47 *
48 */
49 public class YearMonthDayModifiedFollowingHandler implements HolidayHandler<YearMonthDay> {
50
51 /**
52 * Give the type name for this algorithm.
53 *
54 * @return algorithm name.
55 */
56 public String getType() {
57 return HolidayHandlerType.MODIFIED_FOLLOWING;
58 }
59
60 /**
61 * If the current date of the give calculator is a non-working day, it will
62 * be moved according to the algorithm implemented.
63 *
64 * @param calculator
65 * the calculator
66 * @return the date which may have moved.
67 */
68 public YearMonthDay moveCurrentDate(final DateCalculator<YearMonthDay> calculator) {
69 return move(calculator, 1);
70 }
71
72 // -----------------------------------------------------------------------
73 //
74 // ObjectLab, world leaders in the design and development of bespoke
75 // applications for the securities financing markets.
76 // www.ObjectLab.co.uk
77 //
78 // -----------------------------------------------------------------------
79
80 protected YearMonthDay move(final DateCalculator<YearMonthDay> calculator, final int step) {
81 YearMonthDay date = calculator.getCurrentBusinessDate();
82 final int month = date.getMonthOfYear();
83 int stepToUse = step;
84 while (calculator.isNonWorkingDay(date)) {
85 date = date.plusDays(stepToUse);
86 if (date.getMonthOfYear() != month) {
87 // flick to backward
88 stepToUse *= -1;
89 date = date.plusDays(stepToUse);
90 }
91 }
92 return date;
93 }
94 }
95
96 /*
97 * ObjectLab, http://www.objectlab.co.uk/open is sponsoring the ObjectLab Kit.
98 *
99 * Based in London, we are world leaders in the design and development
100 * of bespoke applications for the securities financing markets.
101 *
102 * <a href="http://www.objectlab.co.uk/open">Click here to learn more about us</a>
103 * ___ _ _ _ _ _
104 * / _ \| |__ (_) ___ ___| |_| | __ _| |__
105 * | | | | '_ \| |/ _ \/ __| __| | / _` | '_ \
106 * | |_| | |_) | | __/ (__| |_| |__| (_| | |_) |
107 * \___/|_.__// |\___|\___|\__|_____\__,_|_.__/
108 * |__/
109 *
110 * www.ObjectLab.co.uk
111 */