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: CalendarForwardHandler.java 203 2006-10-11 12:53:07Z benoitx $
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.jdk;
34
35 import java.util.Calendar;
36
37 import net.objectlab.kit.datecalc.common.BaseCalculator;
38 import net.objectlab.kit.datecalc.common.HolidayHandler;
39 import net.objectlab.kit.datecalc.common.HolidayHandlerType;
40 import net.objectlab.kit.datecalc.common.NonWorkingDayChecker;
41
42 /**
43 * A Jdk <code>Calendar</code> implementation of the
44 * {@link net.objectlab.kit.datecalc.common.HolidayHandler}, for the
45 * <strong>Forward</strong> algorithm.
46 *
47 * @author Marcin Jekot
48 * @author Benoit Xhenseval
49 */
50 public class CalendarForwardUnlessNegativeHandler implements HolidayHandler<Calendar> {
51
52 /**
53 * If the current date of the give calculator is a non-working day, it will
54 * be moved according to the algorithm implemented.
55 *
56 * @param calculator
57 * the calculator
58 * @return the date which may have moved.
59 */
60 public Calendar moveCurrentDate(final BaseCalculator<Calendar> calculator) {
61 return adjustDate(calculator.getCurrentBusinessDate(), calculator.getCurrentIncrement(), calculator);
62 }
63
64 // -----------------------------------------------------------------------
65 //
66 // ObjectLab, world leaders in the design and development of bespoke
67 // applications for the securities financing markets.
68 // www.ObjectLab.co.uk
69 //
70 // -----------------------------------------------------------------------
71
72 public Calendar adjustDate(final Calendar startDate, final int increment, final NonWorkingDayChecker<Calendar> checker) {
73 final Calendar cal = (Calendar) startDate.clone();
74
75 while (checker.isNonWorkingDay(cal)) {
76 if (increment < 0) {
77 cal.add(Calendar.DAY_OF_MONTH, -1);
78 } else {
79 cal.add(Calendar.DAY_OF_MONTH, 1);
80 }
81 }
82
83 return cal;
84 }
85
86 /**
87 * Give the type name for this algorithm.
88 *
89 * @return algorithm name.
90 */
91 public String getType() {
92 return HolidayHandlerType.FORWARD_UNLESS_MOVING_BACK;
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 */