1 /* |
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2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 /* |
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27 * Copyright (c) 2012, Stephen Colebourne & Michael Nascimento Santos |
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28 * |
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29 * All rights reserved. |
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30 * |
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31 * Redistribution and use in source and binary forms, with or without |
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32 * modification, are permitted provided that the following conditions are met: |
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33 * |
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34 * * Redistributions of source code must retain the above copyright notice, |
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35 * this list of conditions and the following disclaimer. |
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36 * |
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37 * * Redistributions in binary form must reproduce the above copyright notice, |
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38 * this list of conditions and the following disclaimer in the documentation |
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39 * and/or other materials provided with the distribution. |
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40 * |
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41 * * Neither the name of JSR-310 nor the names of its contributors |
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42 * may be used to endorse or promote products derived from this software |
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43 * without specific prior written permission. |
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44 * |
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45 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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46 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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47 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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48 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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49 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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50 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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51 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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52 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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53 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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54 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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55 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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56 */ |
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57 |
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58 package java.time.calendar; |
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59 |
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60 import static java.time.temporal.ChronoField.EPOCH_DAY; |
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61 |
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62 import java.io.IOException; |
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63 import java.io.Serializable; |
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64 import java.text.ParseException; |
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65 import java.time.DateTimeException; |
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66 import java.time.temporal.Chrono; |
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67 import java.time.temporal.ChronoField; |
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68 import java.time.temporal.ChronoLocalDate; |
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69 import java.time.temporal.Era; |
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70 import java.time.temporal.TemporalAccessor; |
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71 import java.time.temporal.ValueRange; |
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72 import java.util.Arrays; |
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73 import java.util.HashMap; |
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74 import java.util.List; |
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75 import java.util.Locale; |
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76 |
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77 /** |
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78 * The Hijrah calendar system. |
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79 * <p> |
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80 * This chronology defines the rules of the Hijrah calendar system. |
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81 * <p> |
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82 * The implementation follows the Freeman-Grenville algorithm (*1) and has following features. |
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83 * <p><ul> |
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84 * <li>A year has 12 months.</li> |
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85 * <li>Over a cycle of 30 years there are 11 leap years.</li> |
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86 * <li>There are 30 days in month number 1, 3, 5, 7, 9, and 11, |
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87 * and 29 days in month number 2, 4, 6, 8, 10, and 12.</li> |
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88 * <li>In a leap year month 12 has 30 days.</li> |
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89 * <li>In a 30 year cycle, year 2, 5, 7, 10, 13, 16, 18, 21, 24, |
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90 * 26, and 29 are leap years.</li> |
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91 * <li>Total of 10631 days in a 30 years cycle.</li> |
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92 * </ul><p> |
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93 * <P> |
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94 * The table shows the features described above. |
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95 * <blockquote> |
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96 * <table border="1"> |
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97 * <caption>Hijrah Calendar Months</caption> |
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98 * <tbody> |
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99 * <tr> |
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100 * <th># of month</th> |
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101 * <th>Name of month</th> |
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102 * <th>Number of days</th> |
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103 * </tr> |
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104 * <tr> |
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105 * <td>1</td> |
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106 * <td>Muharram</td> |
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107 * <td>30</td> |
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108 * </tr> |
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109 * <tr> |
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110 * <td>2</td> |
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111 * <td>Safar</td> |
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112 * <td>29</td> |
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113 * </tr> |
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114 * <tr> |
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115 * <td>3</td> |
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116 * <td>Rabi'al-Awwal</td> |
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117 * <td>30</td> |
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118 * </tr> |
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119 * <tr> |
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120 * <td>4</td> |
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121 * <td>Rabi'ath-Thani</td> |
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122 * <td>29</td> |
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123 * </tr> |
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124 * <tr> |
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125 * <td>5</td> |
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126 * <td>Jumada l-Ula</td> |
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127 * <td>30</td> |
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128 * </tr> |
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129 * <tr> |
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130 * <td>6</td> |
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131 * <td>Jumada t-Tania</td> |
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132 * <td>29</td> |
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133 * </tr> |
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134 * <tr> |
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135 * <td>7</td> |
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136 * <td>Rajab</td> |
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137 * <td>30</td> |
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138 * </tr> |
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139 * <tr> |
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140 * <td>8</td> |
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141 * <td>Sha`ban</td> |
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142 * <td>29</td> |
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143 * </tr> |
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144 * <tr> |
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145 * <td>9</td> |
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146 * <td>Ramadan</td> |
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147 * <td>30</td> |
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148 * </tr> |
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149 * <tr> |
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150 * <td>10</td> |
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151 * <td>Shawwal</td> |
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152 * <td>29</td> |
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153 * </tr> |
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154 * <tr> |
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155 * <td>11</td> |
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156 * <td>Dhu 'l-Qa`da</td> |
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157 * <td>30</td> |
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158 * </tr> |
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159 * <tr> |
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160 * <td>12</td> |
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161 * <td>Dhu 'l-Hijja</td> |
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162 * <td>29, but 30 days in years 2, 5, 7, 10,<br> |
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163 * 13, 16, 18, 21, 24, 26, and 29</td> |
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164 * </tr> |
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165 * </tbody> |
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166 * </table> |
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167 * </blockquote> |
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168 * <p> |
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169 * (*1) The algorithm is taken from the book, |
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170 * The Muslim and Christian Calendars by G.S.P. Freeman-Grenville. |
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171 * <p> |
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172 * |
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173 * <h3>Specification for implementors</h3> |
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174 * This class is immutable and thread-safe. |
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175 * |
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176 * @since 1.8 |
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177 */ |
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178 public final class HijrahChrono extends Chrono<HijrahChrono> implements Serializable { |
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179 |
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180 /** |
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181 * The Hijrah Calendar id. |
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182 */ |
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183 private final String typeId; |
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184 |
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185 /** |
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186 * The Hijrah calendarType. |
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187 */ |
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188 private final String calendarType; |
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189 |
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190 /** |
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191 * The singleton instance for the era before the current one - Before Hijrah - |
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192 * which has the value 0. |
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193 */ |
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194 public static final Era<HijrahChrono> ERA_BEFORE_AH = HijrahEra.BEFORE_AH; |
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195 /** |
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196 * The singleton instance for the current era - Hijrah - which has the value 1. |
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197 */ |
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198 public static final Era<HijrahChrono> ERA_AH = HijrahEra.AH; |
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199 /** |
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200 * Serialization version. |
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201 */ |
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202 private static final long serialVersionUID = 3127340209035924785L; |
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203 /** |
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204 * The minimum valid year-of-era. |
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205 */ |
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206 public static final int MIN_YEAR_OF_ERA = 1; |
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207 /** |
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208 * The maximum valid year-of-era. |
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209 * This is currently set to 9999 but may be changed to increase the valid range |
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210 * in a future version of the specification. |
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211 */ |
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212 public static final int MAX_YEAR_OF_ERA = 9999; |
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213 |
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214 /** |
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215 * Number of Gregorian day of July 19, year 622 (Gregorian), which is epoch day |
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216 * of Hijrah calendar. |
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217 */ |
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218 private static final int HIJRAH_JAN_1_1_GREGORIAN_DAY = -492148; |
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219 /** |
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220 * 0-based, for number of day-of-year in the beginning of month in normal |
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221 * year. |
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222 */ |
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223 private static final int NUM_DAYS[] = |
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224 {0, 30, 59, 89, 118, 148, 177, 207, 236, 266, 295, 325}; |
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225 /** |
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226 * 0-based, for number of day-of-year in the beginning of month in leap year. |
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227 */ |
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228 private static final int LEAP_NUM_DAYS[] = |
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229 {0, 30, 59, 89, 118, 148, 177, 207, 236, 266, 295, 325}; |
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230 /** |
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231 * 0-based, for day-of-month in normal year. |
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232 */ |
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233 private static final int MONTH_LENGTH[] = |
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234 {30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29}; |
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235 /** |
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236 * 0-based, for day-of-month in leap year. |
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237 */ |
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238 private static final int LEAP_MONTH_LENGTH[] = |
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239 {30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 30}; |
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240 |
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241 /** |
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242 * <pre> |
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243 * Greatest Least |
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244 * Field name Minimum Minimum Maximum Maximum |
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245 * ---------- ------- ------- ------- ------- |
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246 * ERA 0 0 1 1 |
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247 * YEAR_OF_ERA 1 1 9999 9999 |
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248 * MONTH_OF_YEAR 1 1 12 12 |
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249 * DAY_OF_MONTH 1 1 29 30 |
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250 * DAY_OF_YEAR 1 1 354 355 |
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251 * </pre> |
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252 * |
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253 * Minimum values. |
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254 */ |
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255 private static final int MIN_VALUES[] = |
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256 { |
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257 0, |
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258 MIN_YEAR_OF_ERA, |
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259 0, |
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260 1, |
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261 0, |
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262 1, |
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263 1 |
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264 }; |
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265 |
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266 /** |
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267 * Least maximum values. |
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268 */ |
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269 private static final int LEAST_MAX_VALUES[] = |
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270 { |
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271 1, |
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272 MAX_YEAR_OF_ERA, |
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273 11, |
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274 51, |
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275 5, |
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276 29, |
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277 354 |
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278 }; |
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279 |
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280 /** |
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281 * Maximum values. |
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282 */ |
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283 private static final int MAX_VALUES[] = |
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284 { |
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285 1, |
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286 MAX_YEAR_OF_ERA, |
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287 11, |
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288 52, |
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289 6, |
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290 30, |
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291 355 |
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292 }; |
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293 |
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294 /** |
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295 * Position of day-of-month. This value is used to get the min/max value |
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296 * from an array. |
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297 */ |
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298 private static final int POSITION_DAY_OF_MONTH = 5; |
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299 /** |
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300 * Position of day-of-year. This value is used to get the min/max value from |
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301 * an array. |
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302 */ |
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303 private static final int POSITION_DAY_OF_YEAR = 6; |
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304 /** |
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305 * Zero-based start date of cycle year. |
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306 */ |
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307 private static final int CYCLEYEAR_START_DATE[] = |
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308 { |
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309 0, |
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310 354, |
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311 709, |
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312 1063, |
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313 1417, |
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314 1772, |
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315 2126, |
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316 2481, |
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317 2835, |
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318 3189, |
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319 3544, |
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320 3898, |
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321 4252, |
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322 4607, |
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323 4961, |
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324 5315, |
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325 5670, |
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326 6024, |
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327 6379, |
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328 6733, |
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329 7087, |
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330 7442, |
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331 7796, |
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332 8150, |
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333 8505, |
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334 8859, |
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335 9214, |
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336 9568, |
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337 9922, |
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338 10277 |
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339 }; |
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340 |
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341 /** |
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342 * Holding the adjusted month days in year. The key is a year (Integer) and |
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343 * the value is the all the month days in year (int[]). |
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344 */ |
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345 private final HashMap<Integer, int[]> ADJUSTED_MONTH_DAYS = new HashMap<>(); |
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346 /** |
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347 * Holding the adjusted month length in year. The key is a year (Integer) |
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348 * and the value is the all the month length in year (int[]). |
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349 */ |
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350 private final HashMap<Integer, int[]> ADJUSTED_MONTH_LENGTHS = new HashMap<>(); |
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351 /** |
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352 * Holding the adjusted days in the 30 year cycle. The key is a cycle number |
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353 * (Integer) and the value is the all the starting days of the year in the |
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354 * cycle (int[]). |
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355 */ |
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356 private final HashMap<Integer, int[]> ADJUSTED_CYCLE_YEARS = new HashMap<>(); |
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357 /** |
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358 * Holding the adjusted cycle in the 1 - 30000 year. The key is the cycle |
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359 * number (Integer) and the value is the starting days in the cycle in the |
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360 * term. |
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361 */ |
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362 private final long[] ADJUSTED_CYCLES; |
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363 /** |
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364 * Holding the adjusted min values. |
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365 */ |
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366 private final int[] ADJUSTED_MIN_VALUES; |
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367 /** |
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368 * Holding the adjusted max least max values. |
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369 */ |
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370 private final int[] ADJUSTED_LEAST_MAX_VALUES; |
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371 /** |
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372 * Holding adjusted max values. |
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373 */ |
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374 private final int[] ADJUSTED_MAX_VALUES; |
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375 /** |
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376 * Holding the non-adjusted month days in year for non leap year. |
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377 */ |
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378 private static final int[] DEFAULT_MONTH_DAYS; |
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379 /** |
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380 * Holding the non-adjusted month days in year for leap year. |
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381 */ |
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382 private static final int[] DEFAULT_LEAP_MONTH_DAYS; |
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383 /** |
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384 * Holding the non-adjusted month length for non leap year. |
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385 */ |
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386 private static final int[] DEFAULT_MONTH_LENGTHS; |
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387 /** |
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388 * Holding the non-adjusted month length for leap year. |
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389 */ |
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390 private static final int[] DEFAULT_LEAP_MONTH_LENGTHS; |
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391 /** |
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392 * Holding the non-adjusted 30 year cycle starting day. |
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393 */ |
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394 private static final int[] DEFAULT_CYCLE_YEARS; |
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395 /** |
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396 * number of 30-year cycles to hold the deviation data. |
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397 */ |
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398 private static final int MAX_ADJUSTED_CYCLE = 334; // to support year 9999 |
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399 |
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400 |
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401 /** |
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402 * Narrow names for eras. |
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403 */ |
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404 private static final HashMap<String, String[]> ERA_NARROW_NAMES = new HashMap<>(); |
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405 /** |
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406 * Short names for eras. |
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407 */ |
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408 private static final HashMap<String, String[]> ERA_SHORT_NAMES = new HashMap<>(); |
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409 /** |
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410 * Full names for eras. |
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411 */ |
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412 private static final HashMap<String, String[]> ERA_FULL_NAMES = new HashMap<>(); |
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413 /** |
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414 * Fallback language for the era names. |
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415 */ |
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416 private static final String FALLBACK_LANGUAGE = "en"; |
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417 |
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418 /** |
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419 * Singleton instance of the Hijrah chronology. |
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420 * Must be initialized after the rest of the static initialization. |
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421 */ |
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422 public static final HijrahChrono INSTANCE; |
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423 |
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424 /** |
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425 * Name data. |
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426 */ |
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427 static { |
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428 ERA_NARROW_NAMES.put(FALLBACK_LANGUAGE, new String[]{"BH", "HE"}); |
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429 ERA_SHORT_NAMES.put(FALLBACK_LANGUAGE, new String[]{"B.H.", "H.E."}); |
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430 ERA_FULL_NAMES.put(FALLBACK_LANGUAGE, new String[]{"Before Hijrah", "Hijrah Era"}); |
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431 |
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432 DEFAULT_MONTH_DAYS = Arrays.copyOf(NUM_DAYS, NUM_DAYS.length); |
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433 |
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434 DEFAULT_LEAP_MONTH_DAYS = Arrays.copyOf(LEAP_NUM_DAYS, LEAP_NUM_DAYS.length); |
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435 |
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436 DEFAULT_MONTH_LENGTHS = Arrays.copyOf(MONTH_LENGTH, MONTH_LENGTH.length); |
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437 |
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438 DEFAULT_LEAP_MONTH_LENGTHS = Arrays.copyOf(LEAP_MONTH_LENGTH, LEAP_MONTH_LENGTH.length); |
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439 |
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440 DEFAULT_CYCLE_YEARS = Arrays.copyOf(CYCLEYEAR_START_DATE, CYCLEYEAR_START_DATE.length); |
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441 |
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442 INSTANCE = new HijrahChrono(); |
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443 |
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444 String extraCalendars = java.security.AccessController.doPrivileged( |
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445 new sun.security.action.GetPropertyAction("java.time.calendar.HijrahCalendars")); |
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446 if (extraCalendars != null) { |
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447 try { |
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448 // Split on whitespace |
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449 String[] splits = extraCalendars.split("\\s"); |
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450 for (String cal : splits) { |
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451 if (!cal.isEmpty()) { |
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452 // Split on the delimiter between typeId "-" calendarType |
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453 String[] type = cal.split("-"); |
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454 Chrono<?> cal2 = new HijrahChrono(type[0], type.length > 1 ? type[1] : type[0]); |
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455 } |
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456 } |
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457 } catch (Exception ex) { |
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458 // Log the error |
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459 // ex.printStackTrace(); |
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460 } |
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461 } |
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462 } |
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463 |
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464 /** |
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465 * Restricted constructor. |
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466 */ |
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467 private HijrahChrono() { |
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468 this("Hijrah", "islamicc"); |
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469 } |
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470 /** |
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471 * Constructor for name and type HijrahChrono. |
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472 * @param id the id of the calendar |
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473 * @param calendarType the calendar type |
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474 */ |
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475 private HijrahChrono(String id, String calendarType) { |
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476 this.typeId = id; |
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477 this.calendarType = calendarType; |
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478 |
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479 ADJUSTED_CYCLES = new long[MAX_ADJUSTED_CYCLE]; |
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480 for (int i = 0; i < ADJUSTED_CYCLES.length; i++) { |
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481 ADJUSTED_CYCLES[i] = (10631L * i); |
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482 } |
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483 // Initialize min values, least max values and max values. |
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484 ADJUSTED_MIN_VALUES = Arrays.copyOf(MIN_VALUES, MIN_VALUES.length); |
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485 ADJUSTED_LEAST_MAX_VALUES = Arrays.copyOf(LEAST_MAX_VALUES, LEAST_MAX_VALUES.length); |
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486 ADJUSTED_MAX_VALUES = Arrays.copyOf(MAX_VALUES,MAX_VALUES.length); |
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487 |
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488 try { |
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489 // Implicitly reads deviation data for this HijrahChronology. |
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490 boolean any = HijrahDeviationReader.readDeviation(typeId, calendarType, this::addDeviationAsHijrah); |
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491 } catch (IOException | ParseException e) { |
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492 // do nothing. Log deviation config errors. |
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493 //e.printStackTrace(); |
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494 } |
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495 } |
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496 |
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497 /** |
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498 * Resolve singleton. |
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499 * |
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500 * @return the singleton instance, not null |
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501 */ |
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502 private Object readResolve() { |
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503 return INSTANCE; |
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504 } |
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505 |
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506 //----------------------------------------------------------------------- |
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507 /** |
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508 * Gets the ID of the chronology - 'Hijrah'. |
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509 * <p> |
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510 * The ID uniquely identifies the {@code Chrono}. |
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511 * It can be used to lookup the {@code Chrono} using {@link #of(String)}. |
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512 * |
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513 * @return the chronology ID - 'Hijrah' |
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514 * @see #getCalendarType() |
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515 */ |
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516 @Override |
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517 public String getId() { |
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518 return typeId; |
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519 } |
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520 |
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521 /** |
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522 * Gets the calendar type of the underlying calendar system - 'islamicc'. |
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523 * <p> |
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524 * The calendar type is an identifier defined by the |
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525 * <em>Unicode Locale Data Markup Language (LDML)</em> specification. |
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526 * It can be used to lookup the {@code Chrono} using {@link #of(String)}. |
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527 * It can also be used as part of a locale, accessible via |
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528 * {@link Locale#getUnicodeLocaleType(String)} with the key 'ca'. |
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529 * |
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530 * @return the calendar system type - 'islamicc' |
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531 * @see #getId() |
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532 */ |
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533 @Override |
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534 public String getCalendarType() { |
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535 return calendarType; |
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536 } |
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537 |
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538 //----------------------------------------------------------------------- |
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539 @Override |
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540 public ChronoLocalDate<HijrahChrono> date(int prolepticYear, int month, int dayOfMonth) { |
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541 return HijrahDate.of(this, prolepticYear, month, dayOfMonth); |
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542 } |
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543 |
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544 @Override |
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545 public ChronoLocalDate<HijrahChrono> dateYearDay(int prolepticYear, int dayOfYear) { |
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546 return HijrahDate.of(this, prolepticYear, 1, 1).plusDays(dayOfYear - 1); // TODO better |
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547 } |
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548 |
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549 @Override |
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550 public ChronoLocalDate<HijrahChrono> date(TemporalAccessor temporal) { |
|
551 if (temporal instanceof HijrahDate) { |
|
552 return (HijrahDate) temporal; |
|
553 } |
|
554 return HijrahDate.ofEpochDay(this, temporal.getLong(EPOCH_DAY)); |
|
555 } |
|
556 |
|
557 //----------------------------------------------------------------------- |
|
558 @Override |
|
559 public boolean isLeapYear(long prolepticYear) { |
|
560 return isLeapYear0(prolepticYear); |
|
561 } |
|
562 /** |
|
563 * Returns if the year is a leap year. |
|
564 * @param prolepticYear he year to compute from |
|
565 * @return {@code true} if the year is a leap year, otherwise {@code false} |
|
566 */ |
|
567 private static boolean isLeapYear0(long prolepticYear) { |
|
568 return (14 + 11 * (prolepticYear > 0 ? prolepticYear : -prolepticYear)) % 30 < 11; |
|
569 } |
|
570 |
|
571 @Override |
|
572 public int prolepticYear(Era<HijrahChrono> era, int yearOfEra) { |
|
573 if (era instanceof HijrahEra == false) { |
|
574 throw new DateTimeException("Era must be HijrahEra"); |
|
575 } |
|
576 return (era == HijrahEra.AH ? yearOfEra : 1 - yearOfEra); |
|
577 } |
|
578 |
|
579 @Override |
|
580 public Era<HijrahChrono> eraOf(int eraValue) { |
|
581 switch (eraValue) { |
|
582 case 0: |
|
583 return HijrahEra.BEFORE_AH; |
|
584 case 1: |
|
585 return HijrahEra.AH; |
|
586 default: |
|
587 throw new DateTimeException("invalid Hijrah era"); |
|
588 } |
|
589 } |
|
590 |
|
591 @Override |
|
592 public List<Era<HijrahChrono>> eras() { |
|
593 return Arrays.<Era<HijrahChrono>>asList(HijrahEra.values()); |
|
594 } |
|
595 |
|
596 //----------------------------------------------------------------------- |
|
597 @Override |
|
598 public ValueRange range(ChronoField field) { |
|
599 return field.range(); |
|
600 } |
|
601 |
|
602 /** |
|
603 * Check the validity of a yearOfEra. |
|
604 * @param yearOfEra the year to check |
|
605 */ |
|
606 void checkValidYearOfEra(int yearOfEra) { |
|
607 if (yearOfEra < MIN_YEAR_OF_ERA || |
|
608 yearOfEra > MAX_YEAR_OF_ERA) { |
|
609 throw new DateTimeException("Invalid year of Hijrah Era"); |
|
610 } |
|
611 } |
|
612 |
|
613 void checkValidDayOfYear(int dayOfYear) { |
|
614 if (dayOfYear < 1 || |
|
615 dayOfYear > getMaximumDayOfYear()) { |
|
616 throw new DateTimeException("Invalid day of year of Hijrah date"); |
|
617 } |
|
618 } |
|
619 |
|
620 void checkValidMonth(int month) { |
|
621 if (month < 1 || month > 12) { |
|
622 throw new DateTimeException("Invalid month of Hijrah date"); |
|
623 } |
|
624 } |
|
625 |
|
626 void checkValidDayOfMonth(int dayOfMonth) { |
|
627 if (dayOfMonth < 1 || |
|
628 dayOfMonth > getMaximumDayOfMonth()) { |
|
629 throw new DateTimeException("Invalid day of month of Hijrah date, day " |
|
630 + dayOfMonth + " greater than " + getMaximumDayOfMonth() + " or less than 1"); |
|
631 } |
|
632 } |
|
633 |
|
634 //----------------------------------------------------------------------- |
|
635 /** |
|
636 * Returns the int array containing the following field from the julian day. |
|
637 * |
|
638 * int[0] = ERA |
|
639 * int[1] = YEAR |
|
640 * int[2] = MONTH |
|
641 * int[3] = DATE |
|
642 * int[4] = DAY_OF_YEAR |
|
643 * int[5] = DAY_OF_WEEK |
|
644 * |
|
645 * @param gregorianDays a julian day. |
|
646 */ |
|
647 int[] getHijrahDateInfo(long gregorianDays) { |
|
648 int era, year, month, date, dayOfWeek, dayOfYear; |
|
649 |
|
650 int cycleNumber, yearInCycle, dayOfCycle; |
|
651 |
|
652 long epochDay = gregorianDays - HIJRAH_JAN_1_1_GREGORIAN_DAY; |
|
653 |
|
654 if (epochDay >= 0) { |
|
655 cycleNumber = getCycleNumber(epochDay); // 0 - 99. |
|
656 dayOfCycle = getDayOfCycle(epochDay, cycleNumber); // 0 - 10631. |
|
657 yearInCycle = getYearInCycle(cycleNumber, dayOfCycle); // 0 - 29. |
|
658 dayOfYear = getDayOfYear(cycleNumber, dayOfCycle, yearInCycle); |
|
659 // 0 - 354/355 |
|
660 year = cycleNumber * 30 + yearInCycle + 1; // 1-based year. |
|
661 month = getMonthOfYear(dayOfYear, year); // 0-based month-of-year |
|
662 date = getDayOfMonth(dayOfYear, month, year); // 0-based date |
|
663 ++date; // Convert from 0-based to 1-based |
|
664 era = HijrahEra.AH.getValue(); |
|
665 } else { |
|
666 cycleNumber = (int) epochDay / 10631; // 0 or negative number. |
|
667 dayOfCycle = (int) epochDay % 10631; // -10630 - 0. |
|
668 if (dayOfCycle == 0) { |
|
669 dayOfCycle = -10631; |
|
670 cycleNumber++; |
|
671 } |
|
672 yearInCycle = getYearInCycle(cycleNumber, dayOfCycle); // 0 - 29. |
|
673 dayOfYear = getDayOfYear(cycleNumber, dayOfCycle, yearInCycle); |
|
674 year = cycleNumber * 30 - yearInCycle; // negative number. |
|
675 year = 1 - year; |
|
676 dayOfYear = (isLeapYear(year) ? (dayOfYear + 355) |
|
677 : (dayOfYear + 354)); |
|
678 month = getMonthOfYear(dayOfYear, year); |
|
679 date = getDayOfMonth(dayOfYear, month, year); |
|
680 ++date; // Convert from 0-based to 1-based |
|
681 era = HijrahEra.BEFORE_AH.getValue(); |
|
682 } |
|
683 // Hijrah day zero is a Friday |
|
684 dayOfWeek = (int) ((epochDay + 5) % 7); |
|
685 dayOfWeek += (dayOfWeek <= 0) ? 7 : 0; |
|
686 |
|
687 int dateInfo[] = new int[6]; |
|
688 dateInfo[0] = era; |
|
689 dateInfo[1] = year; |
|
690 dateInfo[2] = month + 1; // change to 1-based. |
|
691 dateInfo[3] = date; |
|
692 dateInfo[4] = dayOfYear + 1; // change to 1-based. |
|
693 dateInfo[5] = dayOfWeek; |
|
694 return dateInfo; |
|
695 } |
|
696 |
|
697 /** |
|
698 * Return Gregorian epoch day from Hijrah year, month, and day. |
|
699 * |
|
700 * @param prolepticYear the year to represent, caller calculated |
|
701 * @param monthOfYear the month-of-year to represent, caller calculated |
|
702 * @param dayOfMonth the day-of-month to represent, caller calculated |
|
703 * @return a julian day |
|
704 */ |
|
705 long getGregorianEpochDay(int prolepticYear, int monthOfYear, int dayOfMonth) { |
|
706 long day = yearToGregorianEpochDay(prolepticYear); |
|
707 day += getMonthDays(monthOfYear - 1, prolepticYear); |
|
708 day += dayOfMonth; |
|
709 return day; |
|
710 } |
|
711 |
|
712 /** |
|
713 * Returns the Gregorian epoch day from the proleptic year |
|
714 * @param prolepticYear the proleptic year |
|
715 * @return the Epoch day |
|
716 */ |
|
717 private long yearToGregorianEpochDay(int prolepticYear) { |
|
718 |
|
719 int cycleNumber = (prolepticYear - 1) / 30; // 0-based. |
|
720 int yearInCycle = (prolepticYear - 1) % 30; // 0-based. |
|
721 |
|
722 int dayInCycle = getAdjustedCycle(cycleNumber)[Math.abs(yearInCycle)] |
|
723 ; |
|
724 |
|
725 if (yearInCycle < 0) { |
|
726 dayInCycle = -dayInCycle; |
|
727 } |
|
728 |
|
729 Long cycleDays; |
|
730 |
|
731 try { |
|
732 cycleDays = ADJUSTED_CYCLES[cycleNumber]; |
|
733 } catch (ArrayIndexOutOfBoundsException e) { |
|
734 cycleDays = null; |
|
735 } |
|
736 |
|
737 if (cycleDays == null) { |
|
738 cycleDays = new Long(cycleNumber * 10631); |
|
739 } |
|
740 |
|
741 return (cycleDays.longValue() + dayInCycle + HIJRAH_JAN_1_1_GREGORIAN_DAY - 1); |
|
742 } |
|
743 |
|
744 /** |
|
745 * Returns the 30 year cycle number from the epoch day. |
|
746 * |
|
747 * @param epochDay an epoch day |
|
748 * @return a cycle number |
|
749 */ |
|
750 private int getCycleNumber(long epochDay) { |
|
751 long[] days = ADJUSTED_CYCLES; |
|
752 int cycleNumber; |
|
753 try { |
|
754 for (int i = 0; i < days.length; i++) { |
|
755 if (epochDay < days[i]) { |
|
756 return i - 1; |
|
757 } |
|
758 } |
|
759 cycleNumber = (int) epochDay / 10631; |
|
760 } catch (ArrayIndexOutOfBoundsException e) { |
|
761 cycleNumber = (int) epochDay / 10631; |
|
762 } |
|
763 return cycleNumber; |
|
764 } |
|
765 |
|
766 /** |
|
767 * Returns day of cycle from the epoch day and cycle number. |
|
768 * |
|
769 * @param epochDay an epoch day |
|
770 * @param cycleNumber a cycle number |
|
771 * @return a day of cycle |
|
772 */ |
|
773 private int getDayOfCycle(long epochDay, int cycleNumber) { |
|
774 Long day; |
|
775 |
|
776 try { |
|
777 day = ADJUSTED_CYCLES[cycleNumber]; |
|
778 } catch (ArrayIndexOutOfBoundsException e) { |
|
779 day = null; |
|
780 } |
|
781 if (day == null) { |
|
782 day = new Long(cycleNumber * 10631); |
|
783 } |
|
784 return (int) (epochDay - day.longValue()); |
|
785 } |
|
786 |
|
787 /** |
|
788 * Returns the year in cycle from the cycle number and day of cycle. |
|
789 * |
|
790 * @param cycleNumber a cycle number |
|
791 * @param dayOfCycle day of cycle |
|
792 * @return a year in cycle |
|
793 */ |
|
794 private int getYearInCycle(int cycleNumber, long dayOfCycle) { |
|
795 int[] cycles = getAdjustedCycle(cycleNumber); |
|
796 if (dayOfCycle == 0) { |
|
797 return 0; |
|
798 } |
|
799 |
|
800 if (dayOfCycle > 0) { |
|
801 for (int i = 0; i < cycles.length; i++) { |
|
802 if (dayOfCycle < cycles[i]) { |
|
803 return i - 1; |
|
804 } |
|
805 } |
|
806 return 29; |
|
807 } else { |
|
808 dayOfCycle = -dayOfCycle; |
|
809 for (int i = 0; i < cycles.length; i++) { |
|
810 if (dayOfCycle <= cycles[i]) { |
|
811 return i - 1; |
|
812 } |
|
813 } |
|
814 return 29; |
|
815 } |
|
816 } |
|
817 |
|
818 /** |
|
819 * Returns adjusted 30 year cycle starting day as Integer array from the |
|
820 * cycle number specified. |
|
821 * |
|
822 * @param cycleNumber a cycle number |
|
823 * @return an Integer array |
|
824 */ |
|
825 int[] getAdjustedCycle(int cycleNumber) { |
|
826 int[] cycles; |
|
827 try { |
|
828 cycles = ADJUSTED_CYCLE_YEARS.get(cycleNumber); |
|
829 } catch (ArrayIndexOutOfBoundsException e) { |
|
830 cycles = null; |
|
831 } |
|
832 if (cycles == null) { |
|
833 cycles = DEFAULT_CYCLE_YEARS; |
|
834 } |
|
835 return cycles; |
|
836 } |
|
837 |
|
838 /** |
|
839 * Returns adjusted month days as Integer array form the year specified. |
|
840 * |
|
841 * @param year a year |
|
842 * @return an Integer array |
|
843 */ |
|
844 int[] getAdjustedMonthDays(int year) { |
|
845 int[] newMonths; |
|
846 try { |
|
847 newMonths = ADJUSTED_MONTH_DAYS.get(year); |
|
848 } catch (ArrayIndexOutOfBoundsException e) { |
|
849 newMonths = null; |
|
850 } |
|
851 if (newMonths == null) { |
|
852 if (isLeapYear0(year)) { |
|
853 newMonths = DEFAULT_LEAP_MONTH_DAYS; |
|
854 } else { |
|
855 newMonths = DEFAULT_MONTH_DAYS; |
|
856 } |
|
857 } |
|
858 return newMonths; |
|
859 } |
|
860 |
|
861 /** |
|
862 * Returns adjusted month length as Integer array form the year specified. |
|
863 * |
|
864 * @param year a year |
|
865 * @return an Integer array |
|
866 */ |
|
867 int[] getAdjustedMonthLength(int year) { |
|
868 int[] newMonths; |
|
869 try { |
|
870 newMonths = ADJUSTED_MONTH_LENGTHS.get(year); |
|
871 } catch (ArrayIndexOutOfBoundsException e) { |
|
872 newMonths = null; |
|
873 } |
|
874 if (newMonths == null) { |
|
875 if (isLeapYear0(year)) { |
|
876 newMonths = DEFAULT_LEAP_MONTH_LENGTHS; |
|
877 } else { |
|
878 newMonths = DEFAULT_MONTH_LENGTHS; |
|
879 } |
|
880 } |
|
881 return newMonths; |
|
882 } |
|
883 |
|
884 /** |
|
885 * Returns day-of-year. |
|
886 * |
|
887 * @param cycleNumber a cycle number |
|
888 * @param dayOfCycle day of cycle |
|
889 * @param yearInCycle year in cycle |
|
890 * @return day-of-year |
|
891 */ |
|
892 private int getDayOfYear(int cycleNumber, int dayOfCycle, int yearInCycle) { |
|
893 int[] cycles = getAdjustedCycle(cycleNumber); |
|
894 |
|
895 if (dayOfCycle > 0) { |
|
896 return dayOfCycle - cycles[yearInCycle]; |
|
897 } else { |
|
898 return cycles[yearInCycle] + dayOfCycle; |
|
899 } |
|
900 } |
|
901 |
|
902 /** |
|
903 * Returns month-of-year. 0-based. |
|
904 * |
|
905 * @param dayOfYear day-of-year |
|
906 * @param year a year |
|
907 * @return month-of-year |
|
908 */ |
|
909 private int getMonthOfYear(int dayOfYear, int year) { |
|
910 |
|
911 int[] newMonths = getAdjustedMonthDays(year); |
|
912 |
|
913 if (dayOfYear >= 0) { |
|
914 for (int i = 0; i < newMonths.length; i++) { |
|
915 if (dayOfYear < newMonths[i]) { |
|
916 return i - 1; |
|
917 } |
|
918 } |
|
919 return 11; |
|
920 } else { |
|
921 dayOfYear = (isLeapYear0(year) ? (dayOfYear + 355) |
|
922 : (dayOfYear + 354)); |
|
923 for (int i = 0; i < newMonths.length; i++) { |
|
924 if (dayOfYear < newMonths[i]) { |
|
925 return i - 1; |
|
926 } |
|
927 } |
|
928 return 11; |
|
929 } |
|
930 } |
|
931 |
|
932 /** |
|
933 * Returns day-of-month. |
|
934 * |
|
935 * @param dayOfYear day of year |
|
936 * @param month month |
|
937 * @param year year |
|
938 * @return day-of-month |
|
939 */ |
|
940 private int getDayOfMonth(int dayOfYear, int month, int year) { |
|
941 |
|
942 int[] newMonths = getAdjustedMonthDays(year); |
|
943 |
|
944 if (dayOfYear >= 0) { |
|
945 if (month > 0) { |
|
946 return dayOfYear - newMonths[month]; |
|
947 } else { |
|
948 return dayOfYear; |
|
949 } |
|
950 } else { |
|
951 dayOfYear = (isLeapYear0(year) ? (dayOfYear + 355) |
|
952 : (dayOfYear + 354)); |
|
953 if (month > 0) { |
|
954 return dayOfYear - newMonths[month]; |
|
955 } else { |
|
956 return dayOfYear; |
|
957 } |
|
958 } |
|
959 } |
|
960 |
|
961 |
|
962 /** |
|
963 * Returns month days from the beginning of year. |
|
964 * |
|
965 * @param month month (0-based) |
|
966 * @parma year year |
|
967 * @return month days from the beginning of year |
|
968 */ |
|
969 private int getMonthDays(int month, int year) { |
|
970 int[] newMonths = getAdjustedMonthDays(year); |
|
971 return newMonths[month]; |
|
972 } |
|
973 |
|
974 /** |
|
975 * Returns month length. |
|
976 * |
|
977 * @param month month (0-based) |
|
978 * @param year year |
|
979 * @return month length |
|
980 */ |
|
981 private int getMonthLength(int month, int year) { |
|
982 int[] newMonths = getAdjustedMonthLength(year); |
|
983 return newMonths[month]; |
|
984 } |
|
985 |
|
986 /** |
|
987 * Returns year length. |
|
988 * |
|
989 * @param year year |
|
990 * @return year length |
|
991 */ |
|
992 int getYearLength(int year) { |
|
993 |
|
994 int cycleNumber = (year - 1) / 30; |
|
995 int[] cycleYears; |
|
996 try { |
|
997 cycleYears = ADJUSTED_CYCLE_YEARS.get(cycleNumber); |
|
998 } catch (ArrayIndexOutOfBoundsException e) { |
|
999 cycleYears = null; |
|
1000 } |
|
1001 if (cycleYears != null) { |
|
1002 int yearInCycle = (year - 1) % 30; |
|
1003 if (yearInCycle == 29) { |
|
1004 return (int)(ADJUSTED_CYCLES[cycleNumber + 1] |
|
1005 - ADJUSTED_CYCLES[cycleNumber] |
|
1006 - cycleYears[yearInCycle]); |
|
1007 } |
|
1008 return cycleYears[yearInCycle + 1] |
|
1009 - cycleYears[yearInCycle]; |
|
1010 } else { |
|
1011 return isLeapYear0(year) ? 355 : 354; |
|
1012 } |
|
1013 } |
|
1014 |
|
1015 |
|
1016 /** |
|
1017 * Returns maximum day-of-month. |
|
1018 * |
|
1019 * @return maximum day-of-month |
|
1020 */ |
|
1021 int getMaximumDayOfMonth() { |
|
1022 return ADJUSTED_MAX_VALUES[POSITION_DAY_OF_MONTH]; |
|
1023 } |
|
1024 |
|
1025 /** |
|
1026 * Returns smallest maximum day-of-month. |
|
1027 * |
|
1028 * @return smallest maximum day-of-month |
|
1029 */ |
|
1030 int getSmallestMaximumDayOfMonth() { |
|
1031 return ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_MONTH]; |
|
1032 } |
|
1033 |
|
1034 /** |
|
1035 * Returns maximum day-of-year. |
|
1036 * |
|
1037 * @return maximum day-of-year |
|
1038 */ |
|
1039 int getMaximumDayOfYear() { |
|
1040 return ADJUSTED_MAX_VALUES[POSITION_DAY_OF_YEAR]; |
|
1041 } |
|
1042 |
|
1043 /** |
|
1044 * Returns smallest maximum day-of-year. |
|
1045 * |
|
1046 * @return smallest maximum day-of-year |
|
1047 */ |
|
1048 int getSmallestMaximumDayOfYear() { |
|
1049 return ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_YEAR]; |
|
1050 } |
|
1051 |
|
1052 // ----- Deviation handling -----// |
|
1053 |
|
1054 /** |
|
1055 * Adds deviation definition. The year and month specified should be the |
|
1056 * calculated Hijrah year and month. The month is 1 based. e.g. 9 for |
|
1057 * Ramadan (9th month) Addition of anything minus deviation days is |
|
1058 * calculated negatively in the case the user wants to subtract days from |
|
1059 * the calendar. For example, adding -1 days will subtract one day from the |
|
1060 * current date. |
|
1061 * |
|
1062 * @param startYear start year, 1 origin |
|
1063 * @param startMonth start month, 1 origin |
|
1064 * @param endYear end year, 1 origin |
|
1065 * @param endMonth end month, 1 origin |
|
1066 * @param offset offset -2, -1, +1, +2 |
|
1067 */ |
|
1068 private void addDeviationAsHijrah(Deviation entry) { |
|
1069 int startYear = entry.startYear; |
|
1070 int startMonth = entry.startMonth - 1 ; |
|
1071 int endYear = entry.endYear; |
|
1072 int endMonth = entry.endMonth - 1; |
|
1073 int offset = entry.offset; |
|
1074 |
|
1075 if (startYear < 1) { |
|
1076 throw new IllegalArgumentException("startYear < 1"); |
|
1077 } |
|
1078 if (endYear < 1) { |
|
1079 throw new IllegalArgumentException("endYear < 1"); |
|
1080 } |
|
1081 if (startMonth < 0 || startMonth > 11) { |
|
1082 throw new IllegalArgumentException( |
|
1083 "startMonth < 0 || startMonth > 11"); |
|
1084 } |
|
1085 if (endMonth < 0 || endMonth > 11) { |
|
1086 throw new IllegalArgumentException("endMonth < 0 || endMonth > 11"); |
|
1087 } |
|
1088 if (endYear > 9999) { |
|
1089 throw new IllegalArgumentException("endYear > 9999"); |
|
1090 } |
|
1091 if (endYear < startYear) { |
|
1092 throw new IllegalArgumentException("startYear > endYear"); |
|
1093 } |
|
1094 if (endYear == startYear && endMonth < startMonth) { |
|
1095 throw new IllegalArgumentException( |
|
1096 "startYear == endYear && endMonth < startMonth"); |
|
1097 } |
|
1098 |
|
1099 // Adjusting start year. |
|
1100 boolean isStartYLeap = isLeapYear0(startYear); |
|
1101 |
|
1102 // Adjusting the number of month. |
|
1103 int[] orgStartMonthNums = ADJUSTED_MONTH_DAYS.get(startYear); |
|
1104 if (orgStartMonthNums == null) { |
|
1105 if (isStartYLeap) { |
|
1106 orgStartMonthNums = Arrays.copyOf(LEAP_NUM_DAYS, LEAP_NUM_DAYS.length); |
|
1107 } else { |
|
1108 orgStartMonthNums = Arrays.copyOf(NUM_DAYS, NUM_DAYS.length); |
|
1109 } |
|
1110 } |
|
1111 |
|
1112 int[] newStartMonthNums = new int[orgStartMonthNums.length]; |
|
1113 |
|
1114 for (int month = 0; month < 12; month++) { |
|
1115 if (month > startMonth) { |
|
1116 newStartMonthNums[month] = (orgStartMonthNums[month] - offset); |
|
1117 } else { |
|
1118 newStartMonthNums[month] = (orgStartMonthNums[month]); |
|
1119 } |
|
1120 } |
|
1121 |
|
1122 ADJUSTED_MONTH_DAYS.put(startYear, newStartMonthNums); |
|
1123 |
|
1124 // Adjusting the days of month. |
|
1125 |
|
1126 int[] orgStartMonthLengths = ADJUSTED_MONTH_LENGTHS.get(startYear); |
|
1127 if (orgStartMonthLengths == null) { |
|
1128 if (isStartYLeap) { |
|
1129 orgStartMonthLengths = Arrays.copyOf(LEAP_MONTH_LENGTH, LEAP_MONTH_LENGTH.length); |
|
1130 } else { |
|
1131 orgStartMonthLengths = Arrays.copyOf(MONTH_LENGTH, MONTH_LENGTH.length); |
|
1132 } |
|
1133 } |
|
1134 |
|
1135 int[] newStartMonthLengths = new int[orgStartMonthLengths.length]; |
|
1136 |
|
1137 for (int month = 0; month < 12; month++) { |
|
1138 if (month == startMonth) { |
|
1139 newStartMonthLengths[month] = orgStartMonthLengths[month] - offset; |
|
1140 } else { |
|
1141 newStartMonthLengths[month] = orgStartMonthLengths[month]; |
|
1142 } |
|
1143 } |
|
1144 |
|
1145 ADJUSTED_MONTH_LENGTHS.put(startYear, newStartMonthLengths); |
|
1146 |
|
1147 if (startYear != endYear) { |
|
1148 // System.out.println("over year"); |
|
1149 // Adjusting starting 30 year cycle. |
|
1150 int sCycleNumber = (startYear - 1) / 30; |
|
1151 int sYearInCycle = (startYear - 1) % 30; // 0-based. |
|
1152 int[] startCycles = ADJUSTED_CYCLE_YEARS.get(sCycleNumber); |
|
1153 if (startCycles == null) { |
|
1154 startCycles = Arrays.copyOf(CYCLEYEAR_START_DATE, CYCLEYEAR_START_DATE.length); |
|
1155 } |
|
1156 |
|
1157 for (int j = sYearInCycle + 1; j < CYCLEYEAR_START_DATE.length; j++) { |
|
1158 startCycles[j] = startCycles[j] - offset; |
|
1159 } |
|
1160 |
|
1161 // System.out.println(sCycleNumber + ":" + sYearInCycle); |
|
1162 ADJUSTED_CYCLE_YEARS.put(sCycleNumber, startCycles); |
|
1163 |
|
1164 int sYearInMaxY = (startYear - 1) / 30; |
|
1165 int sEndInMaxY = (endYear - 1) / 30; |
|
1166 |
|
1167 if (sYearInMaxY != sEndInMaxY) { |
|
1168 // System.out.println("over 30"); |
|
1169 // Adjusting starting 30 * MAX_ADJUSTED_CYCLE year cycle. |
|
1170 // System.out.println(sYearInMaxY); |
|
1171 |
|
1172 for (int j = sYearInMaxY + 1; j < ADJUSTED_CYCLES.length; j++) { |
|
1173 ADJUSTED_CYCLES[j] = ADJUSTED_CYCLES[j] - offset; |
|
1174 } |
|
1175 |
|
1176 // Adjusting ending 30 * MAX_ADJUSTED_CYCLE year cycles. |
|
1177 for (int j = sEndInMaxY + 1; j < ADJUSTED_CYCLES.length; j++) { |
|
1178 ADJUSTED_CYCLES[j] = ADJUSTED_CYCLES[j] + offset; |
|
1179 } |
|
1180 } |
|
1181 |
|
1182 // Adjusting ending 30 year cycle. |
|
1183 int eCycleNumber = (endYear - 1) / 30; |
|
1184 int sEndInCycle = (endYear - 1) % 30; // 0-based. |
|
1185 int[] endCycles = ADJUSTED_CYCLE_YEARS.get(eCycleNumber); |
|
1186 if (endCycles == null) { |
|
1187 endCycles = Arrays.copyOf(CYCLEYEAR_START_DATE, CYCLEYEAR_START_DATE.length); |
|
1188 } |
|
1189 for (int j = sEndInCycle + 1; j < CYCLEYEAR_START_DATE.length; j++) { |
|
1190 endCycles[j] = endCycles[j] + offset; |
|
1191 } |
|
1192 ADJUSTED_CYCLE_YEARS.put(eCycleNumber, endCycles); |
|
1193 } |
|
1194 |
|
1195 // Adjusting ending year. |
|
1196 boolean isEndYLeap = isLeapYear0(endYear); |
|
1197 |
|
1198 int[] orgEndMonthDays = ADJUSTED_MONTH_DAYS.get(endYear); |
|
1199 |
|
1200 if (orgEndMonthDays == null) { |
|
1201 if (isEndYLeap) { |
|
1202 orgEndMonthDays = Arrays.copyOf(LEAP_NUM_DAYS, LEAP_NUM_DAYS.length); |
|
1203 } else { |
|
1204 orgEndMonthDays = Arrays.copyOf(NUM_DAYS, NUM_DAYS.length); |
|
1205 } |
|
1206 } |
|
1207 |
|
1208 int[] newEndMonthDays = new int[orgEndMonthDays.length]; |
|
1209 |
|
1210 for (int month = 0; month < 12; month++) { |
|
1211 if (month > endMonth) { |
|
1212 newEndMonthDays[month] = orgEndMonthDays[month] + offset; |
|
1213 } else { |
|
1214 newEndMonthDays[month] = orgEndMonthDays[month]; |
|
1215 } |
|
1216 } |
|
1217 |
|
1218 ADJUSTED_MONTH_DAYS.put(endYear, newEndMonthDays); |
|
1219 |
|
1220 // Adjusting the days of month. |
|
1221 int[] orgEndMonthLengths = ADJUSTED_MONTH_LENGTHS.get(endYear); |
|
1222 |
|
1223 if (orgEndMonthLengths == null) { |
|
1224 if (isEndYLeap) { |
|
1225 orgEndMonthLengths = Arrays.copyOf(LEAP_MONTH_LENGTH, LEAP_MONTH_LENGTH.length); |
|
1226 } else { |
|
1227 orgEndMonthLengths = Arrays.copyOf(MONTH_LENGTH, MONTH_LENGTH.length); |
|
1228 } |
|
1229 } |
|
1230 |
|
1231 int[] newEndMonthLengths = new int[orgEndMonthLengths.length]; |
|
1232 |
|
1233 for (int month = 0; month < 12; month++) { |
|
1234 if (month == endMonth) { |
|
1235 newEndMonthLengths[month] = orgEndMonthLengths[month] + offset; |
|
1236 } else { |
|
1237 newEndMonthLengths[month] = orgEndMonthLengths[month]; |
|
1238 } |
|
1239 } |
|
1240 |
|
1241 ADJUSTED_MONTH_LENGTHS.put(endYear, newEndMonthLengths); |
|
1242 |
|
1243 int[] startMonthLengths = ADJUSTED_MONTH_LENGTHS.get(startYear); |
|
1244 int[] endMonthLengths = ADJUSTED_MONTH_LENGTHS.get(endYear); |
|
1245 int[] startMonthDays = ADJUSTED_MONTH_DAYS.get(startYear); |
|
1246 int[] endMonthDays = ADJUSTED_MONTH_DAYS.get(endYear); |
|
1247 |
|
1248 int startMonthLength = startMonthLengths[startMonth]; |
|
1249 int endMonthLength = endMonthLengths[endMonth]; |
|
1250 int startMonthDay = startMonthDays[11] + startMonthLengths[11]; |
|
1251 int endMonthDay = endMonthDays[11] + endMonthLengths[11]; |
|
1252 |
|
1253 int maxMonthLength = ADJUSTED_MAX_VALUES[POSITION_DAY_OF_MONTH]; |
|
1254 int leastMaxMonthLength = ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_MONTH]; |
|
1255 |
|
1256 if (maxMonthLength < startMonthLength) { |
|
1257 maxMonthLength = startMonthLength; |
|
1258 } |
|
1259 if (maxMonthLength < endMonthLength) { |
|
1260 maxMonthLength = endMonthLength; |
|
1261 } |
|
1262 ADJUSTED_MAX_VALUES[POSITION_DAY_OF_MONTH] = maxMonthLength; |
|
1263 |
|
1264 if (leastMaxMonthLength > startMonthLength) { |
|
1265 leastMaxMonthLength = startMonthLength; |
|
1266 } |
|
1267 if (leastMaxMonthLength > endMonthLength) { |
|
1268 leastMaxMonthLength = endMonthLength; |
|
1269 } |
|
1270 ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_MONTH] = leastMaxMonthLength; |
|
1271 |
|
1272 int maxMonthDay = ADJUSTED_MAX_VALUES[POSITION_DAY_OF_YEAR]; |
|
1273 int leastMaxMonthDay = ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_YEAR]; |
|
1274 |
|
1275 if (maxMonthDay < startMonthDay) { |
|
1276 maxMonthDay = startMonthDay; |
|
1277 } |
|
1278 if (maxMonthDay < endMonthDay) { |
|
1279 maxMonthDay = endMonthDay; |
|
1280 } |
|
1281 |
|
1282 ADJUSTED_MAX_VALUES[POSITION_DAY_OF_YEAR] = maxMonthDay; |
|
1283 |
|
1284 if (leastMaxMonthDay > startMonthDay) { |
|
1285 leastMaxMonthDay = startMonthDay; |
|
1286 } |
|
1287 if (leastMaxMonthDay > endMonthDay) { |
|
1288 leastMaxMonthDay = endMonthDay; |
|
1289 } |
|
1290 ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_YEAR] = leastMaxMonthDay; |
|
1291 } |
|
1292 |
|
1293 /** |
|
1294 * Package private Entry for suppling deviations from the Reader. |
|
1295 * Each entry consists of a range using the Hijrah calendar, |
|
1296 * start year, month, end year, end month, and an offset. |
|
1297 * The offset is used to modify the length of the month +2, +1, -1, -2. |
|
1298 */ |
|
1299 static final class Deviation { |
|
1300 |
|
1301 Deviation(int startYear, int startMonth, int endYear, int endMonth, int offset) { |
|
1302 this.startYear = startYear; |
|
1303 this.startMonth = startMonth; |
|
1304 this.endYear = endYear; |
|
1305 this.endMonth = endMonth; |
|
1306 this.offset = offset; |
|
1307 } |
|
1308 |
|
1309 final int startYear; |
|
1310 final int startMonth; |
|
1311 final int endYear; |
|
1312 final int endMonth; |
|
1313 final int offset; |
|
1314 |
|
1315 int getStartYear() { |
|
1316 return startYear; |
|
1317 } |
|
1318 |
|
1319 int getStartMonth() { |
|
1320 return startMonth; |
|
1321 } |
|
1322 |
|
1323 int getEndYear() { |
|
1324 return endYear; |
|
1325 } |
|
1326 |
|
1327 int getEndMonth() { |
|
1328 return endMonth; |
|
1329 } |
|
1330 |
|
1331 int getOffset() { |
|
1332 return offset; |
|
1333 } |
|
1334 |
|
1335 @Override |
|
1336 public String toString() { |
|
1337 return String.format("[year: %4d, month: %2d, offset: %+d]", startYear, startMonth, offset); |
|
1338 } |
|
1339 } |
|
1340 |
|
1341 } |
|