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1 /** |
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2 * Copyright (c) 2012, Ben Fortuna |
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3 * All rights reserved. |
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4 * |
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5 * Redistribution and use in source and binary forms, with or without |
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6 * modification, are permitted provided that the following conditions |
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7 * are met: |
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8 * |
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9 * o Redistributions of source code must retain the above copyright |
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10 * notice, this list of conditions and the following disclaimer. |
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11 * |
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12 * o Redistributions in binary form must reproduce the above copyright |
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13 * notice, this list of conditions and the following disclaimer in the |
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14 * documentation and/or other materials provided with the distribution. |
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15 * |
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16 * o Neither the name of Ben Fortuna nor the names of any other contributors |
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17 * may be used to endorse or promote products derived from this software |
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18 * without specific prior written permission. |
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19 * |
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20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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31 */ |
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32 package net.fortuna.ical4j.model.component; |
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33 |
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34 import java.util.HashMap; |
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35 import java.util.Map; |
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36 |
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37 import net.fortuna.ical4j.model.DateTime; |
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38 import net.fortuna.ical4j.model.Dur; |
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39 import net.fortuna.ical4j.model.Property; |
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40 import net.fortuna.ical4j.model.PropertyList; |
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41 import net.fortuna.ical4j.model.ValidationException; |
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42 import net.fortuna.ical4j.model.Validator; |
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43 import net.fortuna.ical4j.model.property.Action; |
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44 import net.fortuna.ical4j.model.property.Attach; |
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45 import net.fortuna.ical4j.model.property.Description; |
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46 import net.fortuna.ical4j.model.property.Duration; |
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47 import net.fortuna.ical4j.model.property.Method; |
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48 import net.fortuna.ical4j.model.property.Repeat; |
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49 import net.fortuna.ical4j.model.property.Summary; |
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50 import net.fortuna.ical4j.model.property.Trigger; |
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51 import net.fortuna.ical4j.util.PropertyValidator; |
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52 |
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53 /** |
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54 * $Id$ [Apr 5, 2004] |
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55 * |
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56 * Defines an iCalendar VALARM component. |
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57 * |
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58 * <pre> |
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59 * 4.6.6 Alarm Component |
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60 * |
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61 * Component Name: VALARM |
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62 * |
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63 * Purpose: Provide a grouping of component properties that define an |
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64 * alarm. |
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65 * |
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66 * Formal Definition: A "VALARM" calendar component is defined by the |
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67 * following notation: |
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68 * |
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69 * alarmc = "BEGIN" ":" "VALARM" CRLF |
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70 * (audioprop / dispprop / emailprop / procprop) |
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71 * "END" ":" "VALARM" CRLF |
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72 * |
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73 * audioprop = 2*( |
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74 * |
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75 * ; 'action' and 'trigger' are both REQUIRED, |
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76 * ; but MUST NOT occur more than once |
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77 * |
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78 * action / trigger / |
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79 * |
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80 * ; 'duration' and 'repeat' are both optional, |
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81 * ; and MUST NOT occur more than once each, |
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82 * ; but if one occurs, so MUST the other |
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83 * |
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84 * duration / repeat / |
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85 * |
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86 * ; the following is optional, |
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87 * ; but MUST NOT occur more than once |
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88 * |
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89 * attach / |
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90 * |
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91 * ; the following is optional, |
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92 * ; and MAY occur more than once |
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93 * |
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94 * x-prop |
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95 * |
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96 * ) |
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97 * |
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98 * |
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99 * |
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100 * dispprop = 3*( |
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101 * |
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102 * ; the following are all REQUIRED, |
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103 * ; but MUST NOT occur more than once |
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104 * |
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105 * action / description / trigger / |
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106 * |
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107 * ; 'duration' and 'repeat' are both optional, |
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108 * ; and MUST NOT occur more than once each, |
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109 * ; but if one occurs, so MUST the other |
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110 * |
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111 * duration / repeat / |
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112 * |
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113 * ; the following is optional, |
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114 * ; and MAY occur more than once |
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115 * |
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116 * *x-prop |
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117 * |
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118 * ) |
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119 * |
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120 * |
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121 * |
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122 * emailprop = 5*( |
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123 * |
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124 * ; the following are all REQUIRED, |
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125 * ; but MUST NOT occur more than once |
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126 * |
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127 * action / description / trigger / summary |
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128 * |
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129 * ; the following is REQUIRED, |
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130 * ; and MAY occur more than once |
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131 * |
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132 * attendee / |
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133 * |
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134 * ; 'duration' and 'repeat' are both optional, |
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135 * ; and MUST NOT occur more than once each, |
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136 * ; but if one occurs, so MUST the other |
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137 * |
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138 * duration / repeat / |
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139 * |
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140 * ; the following are optional, |
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141 * ; and MAY occur more than once |
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142 * |
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143 * attach / x-prop |
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144 * |
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145 * ) |
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146 * |
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147 * |
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148 * |
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149 * procprop = 3*( |
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150 * |
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151 * ; the following are all REQUIRED, |
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152 * ; but MUST NOT occur more than once |
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153 * |
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154 * action / attach / trigger / |
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155 * |
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156 * ; 'duration' and 'repeat' are both optional, |
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157 * ; and MUST NOT occur more than once each, |
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158 * ; but if one occurs, so MUST the other |
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159 * |
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160 * duration / repeat / |
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161 * |
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162 * ; 'description' is optional, |
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163 * ; and MUST NOT occur more than once |
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164 * |
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165 * description / |
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166 * |
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167 * ; the following is optional, |
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168 * ; and MAY occur more than once |
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169 * |
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170 * x-prop |
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171 * |
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172 * ) |
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173 * </pre> |
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174 * |
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175 * Example 1 - Creating an alarm to trigger at a specific time: |
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176 * |
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177 * <pre><code> |
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178 * java.util.Calendar cal = java.util.Calendar.getInstance(); |
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179 * cal.set(java.util.Calendar.MONTH, java.util.Calendar.DECEMBER); |
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180 * cal.set(java.util.Calendar.DAY_OF_MONTH, 25); |
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181 * |
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182 * VAlarm christmas = new VAlarm(cal.getTime()); |
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183 * </code></pre> |
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184 * |
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185 * Example 2 - Creating an alarm to trigger one (1) hour before the scheduled start of the parent event/the parent todo |
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186 * is due: |
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187 * |
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188 * <pre><code> |
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189 * VAlarm reminder = new VAlarm(new Dur(0, -1, 0, 0)); |
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190 * |
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191 * // repeat reminder four (4) more times every fifteen (15) minutes.. |
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192 * reminder.getProperties().add(new Repeat(4)); |
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193 * reminder.getProperties().add(new Duration(new Dur(0, 0, 15, 0))); |
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194 * |
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195 * // display a message.. |
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196 * reminder.getProperties().add(Action.DISPLAY); |
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197 * reminder.getProperties().add(new Description("Progress Meeting at 9:30am")); |
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198 * </code></pre> |
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199 * |
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200 * @author Ben Fortuna |
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201 */ |
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202 public class VAlarm extends CalendarComponent { |
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203 |
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204 private static final long serialVersionUID = -8193965477414653802L; |
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205 |
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206 private final Map actionValidators = new HashMap(); |
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207 { |
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208 actionValidators.put(Action.AUDIO, new AudioValidator()); |
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209 actionValidators.put(Action.DISPLAY, new DisplayValidator()); |
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210 actionValidators.put(Action.EMAIL, new EmailValidator()); |
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211 actionValidators.put(Action.PROCEDURE, new ProcedureValidator()); |
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212 } |
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213 |
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214 private final Validator itipValidator = new ITIPValidator(); |
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215 |
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216 /** |
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217 * Default constructor. |
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218 */ |
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219 public VAlarm() { |
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220 super(VALARM); |
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221 } |
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222 |
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223 /** |
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224 * Constructor. |
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225 * @param properties a list of properties |
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226 */ |
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227 public VAlarm(final PropertyList properties) { |
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228 super(VALARM, properties); |
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229 } |
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230 |
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231 /** |
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232 * Constructs a new VALARM instance that will trigger at the specified time. |
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233 * @param trigger the time the alarm will trigger |
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234 */ |
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235 public VAlarm(final DateTime trigger) { |
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236 this(); |
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237 getProperties().add(new Trigger(trigger)); |
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238 } |
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239 |
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240 /** |
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241 * Constructs a new VALARM instance that will trigger at the specified time relative to the event/todo component. |
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242 * @param trigger a duration of time relative to the parent component that the alarm will trigger at |
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243 */ |
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244 public VAlarm(final Dur trigger) { |
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245 this(); |
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246 getProperties().add(new Trigger(trigger)); |
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247 } |
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248 |
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249 /** |
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250 * {@inheritDoc} |
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251 */ |
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252 public final void validate(final boolean recurse) |
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253 throws ValidationException { |
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254 |
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255 /* |
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256 * ; 'action' and 'trigger' are both REQUIRED, ; but MUST NOT occur more than once action / trigger / |
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257 */ |
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258 PropertyValidator.getInstance().assertOne(Property.ACTION, getProperties()); |
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259 PropertyValidator.getInstance().assertOne(Property.TRIGGER, getProperties()); |
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260 |
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261 /* |
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262 * ; 'duration' and 'repeat' are both optional, ; and MUST NOT occur more than once each, ; but if one occurs, |
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263 * so MUST the other duration / repeat / |
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264 */ |
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265 PropertyValidator.getInstance().assertOneOrLess(Property.DURATION, getProperties()); |
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266 PropertyValidator.getInstance().assertOneOrLess(Property.REPEAT, getProperties()); |
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267 |
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268 try { |
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269 PropertyValidator.getInstance().assertNone(Property.DURATION, getProperties()); |
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270 PropertyValidator.getInstance().assertNone(Property.REPEAT, getProperties()); |
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271 } |
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272 catch (ValidationException ve) { |
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273 PropertyValidator.getInstance().assertOne(Property.DURATION, getProperties()); |
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274 PropertyValidator.getInstance().assertOne(Property.REPEAT, getProperties()); |
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275 } |
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276 |
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277 /* |
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278 * ; the following is optional, ; and MAY occur more than once x-prop |
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279 */ |
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280 |
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281 final Validator actionValidator = (Validator) actionValidators.get(getAction()); |
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282 if (actionValidator != null) { |
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283 actionValidator.validate(); |
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284 } |
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285 |
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286 if (recurse) { |
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287 validateProperties(); |
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288 } |
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289 } |
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290 |
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291 /** |
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292 * {@inheritDoc} |
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293 */ |
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294 protected Validator getValidator(Method method) { |
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295 return itipValidator; |
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296 } |
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297 |
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298 private class AudioValidator implements Validator { |
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299 |
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300 private static final long serialVersionUID = 1L; |
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301 |
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302 /** |
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303 * {@inheritDoc} |
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304 */ |
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305 public void validate() throws ValidationException { |
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306 /* |
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307 * ; the following is optional, ; but MUST NOT occur more than once attach / |
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308 */ |
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309 PropertyValidator.getInstance().assertOneOrLess(Property.ATTACH, getProperties()); |
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310 } |
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311 } |
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312 |
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313 private class DisplayValidator implements Validator { |
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314 |
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315 private static final long serialVersionUID = 1L; |
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316 |
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317 /** |
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318 * {@inheritDoc} |
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319 */ |
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320 public void validate() throws ValidationException { |
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321 /* |
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322 * ; the following are all REQUIRED, ; but MUST NOT occur more than once action / description / trigger / |
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323 */ |
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324 PropertyValidator.getInstance().assertOne(Property.DESCRIPTION, getProperties()); |
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325 } |
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326 } |
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327 |
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328 private class EmailValidator implements Validator { |
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329 |
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330 private static final long serialVersionUID = 1L; |
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331 |
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332 /** |
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333 * {@inheritDoc} |
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334 */ |
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335 public void validate() throws ValidationException { |
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336 /* |
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337 * ; the following are all REQUIRED, |
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338 * ; but MUST NOT occur more than once action / description / trigger / summary |
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339 * ; the following is REQUIRED, |
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340 * ; and MAY occur more than once attendee / |
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341 * ; 'duration' and 'repeat' are both optional, |
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342 * ; and MUST NOT occur more than once each, |
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343 * ; but if one occurs, so MUST the other duration / repeat / |
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344 * ; the following are optional, |
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345 * ; and MAY occur more than once attach / x-prop |
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346 */ |
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347 PropertyValidator.getInstance().assertOne(Property.DESCRIPTION, getProperties()); |
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348 PropertyValidator.getInstance().assertOne(Property.SUMMARY, getProperties()); |
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349 |
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350 PropertyValidator.getInstance().assertOneOrMore(Property.ATTENDEE, getProperties()); |
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351 } |
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352 } |
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353 |
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354 private class ProcedureValidator implements Validator { |
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355 |
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356 private static final long serialVersionUID = 1L; |
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357 |
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358 /** |
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359 * {@inheritDoc} |
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360 */ |
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361 public void validate() throws ValidationException { |
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362 /* |
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363 * ; the following are all REQUIRED, |
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364 * ; but MUST NOT occur more than once action / attach / trigger / |
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365 * ; 'duration' and 'repeat' are both optional, |
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366 * ; and MUST NOT occur more than once each, |
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367 * ; but if one occurs, so MUST the other duration / repeat / |
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368 * ; 'description' is optional, |
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369 * ; and MUST NOT occur more than once description / |
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370 * ; the following is optional, ; and MAY occur more than once x-prop |
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371 */ |
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372 PropertyValidator.getInstance().assertOne(Property.ATTACH, getProperties()); |
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373 |
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374 PropertyValidator.getInstance().assertOneOrLess(Property.DESCRIPTION, getProperties()); |
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375 } |
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376 } |
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377 |
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378 /** |
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379 * Common validation for all iTIP methods. |
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380 * |
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381 * <pre> |
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382 * Component/Property Presence |
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383 * ------------------- ---------------------------------------------- |
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384 * VALARM 0+ |
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385 * ACTION 1 |
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386 * ATTACH 0+ |
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387 * DESCRIPTION 0 or 1 |
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388 * DURATION 0 or 1 if present REPEAT MUST be present |
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389 * REPEAT 0 or 1 if present DURATION MUST be present |
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390 * SUMMARY 0 or 1 |
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391 * TRIGGER 1 |
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392 * X-PROPERTY 0+ |
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393 * </pre> |
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394 */ |
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395 private class ITIPValidator implements Validator { |
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396 |
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397 private static final long serialVersionUID = 1L; |
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398 |
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399 /** |
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400 * {@inheritDoc} |
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401 */ |
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402 public void validate() throws ValidationException { |
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403 PropertyValidator.getInstance().assertOne(Property.ACTION, getProperties()); |
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404 PropertyValidator.getInstance().assertOne(Property.TRIGGER, getProperties()); |
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405 |
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406 PropertyValidator.getInstance().assertOneOrLess(Property.DESCRIPTION, getProperties()); |
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407 PropertyValidator.getInstance().assertOneOrLess(Property.DURATION, getProperties()); |
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408 PropertyValidator.getInstance().assertOneOrLess(Property.REPEAT, getProperties()); |
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409 PropertyValidator.getInstance().assertOneOrLess(Property.SUMMARY, getProperties()); |
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410 } |
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411 } |
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412 |
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413 /** |
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414 * Returns the mandatory action property. |
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415 * @return the ACTION property or null if not specified |
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416 */ |
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417 public final Action getAction() { |
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418 return (Action) getProperty(Property.ACTION); |
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419 } |
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420 |
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421 /** |
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422 * Returns the mandatory trigger property. |
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423 * @return the TRIGGER property or null if not specified |
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424 */ |
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425 public final Trigger getTrigger() { |
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426 return (Trigger) getProperty(Property.TRIGGER); |
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427 } |
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428 |
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429 /** |
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430 * Returns the optional duration property. |
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431 * @return the DURATION property or null if not specified |
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432 */ |
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433 public final Duration getDuration() { |
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434 return (Duration) getProperty(Property.DURATION); |
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435 } |
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436 |
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437 /** |
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438 * Returns the optional repeat property. |
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439 * @return the REPEAT property or null if not specified |
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440 */ |
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441 public final Repeat getRepeat() { |
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442 return (Repeat) getProperty(Property.REPEAT); |
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443 } |
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444 |
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445 /** |
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446 * Returns the optional attachment property. |
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447 * @return the ATTACH property or null if not specified |
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448 */ |
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449 public final Attach getAttachment() { |
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450 return (Attach) getProperty(Property.ATTACH); |
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451 } |
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452 |
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453 /** |
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454 * Returns the optional description property. |
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455 * @return the DESCRIPTION property or null if not specified |
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456 */ |
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457 public final Description getDescription() { |
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458 return (Description) getProperty(Property.DESCRIPTION); |
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459 } |
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460 |
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461 /** |
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462 * Returns the optional summary property. |
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463 * @return the SUMMARY property or null if not specified |
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464 */ |
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465 public final Summary getSummary() { |
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466 return (Summary) getProperty(Property.SUMMARY); |
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467 } |
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468 } |