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comparison: src/net/fortuna/ical4j/util/CompatibilityHints.java
src/net/fortuna/ical4j/util/CompatibilityHints.java
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| 1 /** | |
| 2 * Copyright (c) 2012, Ben Fortuna | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * | |
| 9 * o Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * o Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * o Neither the name of Ben Fortuna nor the names of any other contributors | |
| 17 * may be used to endorse or promote products derived from this software | |
| 18 * without specific prior written permission. | |
| 19 * | |
| 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
| 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
| 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 31 */ | |
| 32 package net.fortuna.ical4j.util; | |
| 33 | |
| 34 import java.util.Map; | |
| 35 | |
| 36 import edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap; | |
| 37 | |
| 38 /** | |
| 39 * $Id$ | |
| 40 * | |
| 41 * Created on 9/03/2006 | |
| 42 * | |
| 43 * A set of keys used to enable compatibility features. | |
| 44 * | |
| 45 * @author Ben Fortuna | |
| 46 */ | |
| 47 public final class CompatibilityHints { | |
| 48 | |
| 49 /** | |
| 50 * A system property key to enable relaxed unfolding. Relaxed unfolding is enabled by setting this system property | |
| 51 * to "true". | |
| 52 */ | |
| 53 public static final String KEY_RELAXED_UNFOLDING = "ical4j.unfolding.relaxed"; | |
| 54 | |
| 55 /** | |
| 56 * A system property key to enable relaxed parsing. Relaxed parsing is enabled by setting this system property to | |
| 57 * "true". | |
| 58 */ | |
| 59 public static final String KEY_RELAXED_PARSING = "ical4j.parsing.relaxed"; | |
| 60 | |
| 61 /** | |
| 62 * A system property key to enable relaxed validation. Relaxed validation disables validation of certain conformance | |
| 63 * rules that many iCalendar implementations do not conform to. Relaxed validation is enabled by setting this system | |
| 64 * property to "true". | |
| 65 */ | |
| 66 public static final String KEY_RELAXED_VALIDATION = "ical4j.validation.relaxed"; | |
| 67 | |
| 68 /** | |
| 69 * A system property key used to enable compatibility with Outlook/Exchange-generated iCalendar files. Outlook | |
| 70 * compatibility is enabled by setting this system property to "true". | |
| 71 */ | |
| 72 public static final String KEY_OUTLOOK_COMPATIBILITY = "ical4j.compatibility.outlook"; | |
| 73 | |
| 74 /** | |
| 75 * A system property key used to enable compatibility with Lotus Notes-generated iCalendar files. Notes | |
| 76 * compatibility is enabled by setting this system property to "true". | |
| 77 */ | |
| 78 public static final String KEY_NOTES_COMPATIBILITY = "ical4j.compatibility.notes"; | |
| 79 | |
| 80 private static final Map HINTS = new ConcurrentHashMap(); | |
| 81 // preload known hints from the configurator | |
| 82 static { | |
| 83 setHintEnabled(KEY_RELAXED_UNFOLDING, "true".equals(Configurator.getProperty(KEY_RELAXED_UNFOLDING))); | |
| 84 setHintEnabled(KEY_RELAXED_PARSING, "true".equals(Configurator.getProperty(KEY_RELAXED_PARSING))); | |
| 85 setHintEnabled(KEY_RELAXED_VALIDATION, "true".equals(Configurator.getProperty(KEY_RELAXED_VALIDATION))); | |
| 86 setHintEnabled(KEY_OUTLOOK_COMPATIBILITY, "true".equals(Configurator.getProperty(KEY_OUTLOOK_COMPATIBILITY))); | |
| 87 setHintEnabled(KEY_NOTES_COMPATIBILITY, "true".equals(Configurator.getProperty(KEY_NOTES_COMPATIBILITY))); | |
| 88 } | |
| 89 | |
| 90 /** | |
| 91 * Constructor made private to enforce static nature. | |
| 92 */ | |
| 93 private CompatibilityHints() { | |
| 94 } | |
| 95 | |
| 96 /** | |
| 97 * @param key | |
| 98 * a compatibility hint key | |
| 99 * @param enabled | |
| 100 * indicates whether to enable or disable the compatibility hint | |
| 101 */ | |
| 102 public static void setHintEnabled(final String key, final boolean enabled) { | |
| 103 HINTS.put(key, Boolean.valueOf(enabled)); | |
| 104 } | |
| 105 | |
| 106 /** | |
| 107 * @param key | |
| 108 * a compatibility hint key | |
| 109 */ | |
| 110 public static void clearHintEnabled(final String key) { | |
| 111 HINTS.remove(key); | |
| 112 } | |
| 113 | |
| 114 /** | |
| 115 * @param key | |
| 116 * a compatibility hint key | |
| 117 * @return true if the specified compatibility hint is enabled, otherwise false | |
| 118 */ | |
| 119 public static boolean isHintEnabled(final String key) { | |
| 120 if (HINTS.get(key) != null) { | |
| 121 return ((Boolean) HINTS.get(key)).booleanValue(); | |
| 122 } | |
| 123 return "true".equals(Configurator.getProperty(key)); | |
| 124 } | |
| 125 } |
