src/net/fortuna/ical4j/util/CompatibilityHints.java@e0e108e77052 (annotated)
src/net/fortuna/ical4j/util/CompatibilityHints.java
Tue, 10 Feb 2015 21:32:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 10 Feb 2015 21:32:00 +0100
- changeset 5
- e0e108e77052
- parent 0
- fb9019fb1bf7
- permissions
- -rw-r--r--
Complete porting of ical4j to post getContextClassLoader() Android era,
correcting critical flaws reported by users on the upstream bugtracker
including https://github.com/gggard/AndroidCaldavSyncAdapater/issues/224/
| michael@0 | 1 | /** |
| michael@0 | 2 | * Copyright (c) 2012, Ben Fortuna |
| michael@0 | 3 | * All rights reserved. |
| michael@0 | 4 | * |
| michael@0 | 5 | * Redistribution and use in source and binary forms, with or without |
| michael@0 | 6 | * modification, are permitted provided that the following conditions |
| michael@0 | 7 | * are met: |
| michael@0 | 8 | * |
| michael@0 | 9 | * o Redistributions of source code must retain the above copyright |
| michael@0 | 10 | * notice, this list of conditions and the following disclaimer. |
| michael@0 | 11 | * |
| michael@0 | 12 | * o Redistributions in binary form must reproduce the above copyright |
| michael@0 | 13 | * notice, this list of conditions and the following disclaimer in the |
| michael@0 | 14 | * documentation and/or other materials provided with the distribution. |
| michael@0 | 15 | * |
| michael@0 | 16 | * o Neither the name of Ben Fortuna nor the names of any other contributors |
| michael@0 | 17 | * may be used to endorse or promote products derived from this software |
| michael@0 | 18 | * without specific prior written permission. |
| michael@0 | 19 | * |
| michael@0 | 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| michael@0 | 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| michael@0 | 24 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| michael@0 | 25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| michael@0 | 26 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| michael@0 | 27 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| michael@0 | 28 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| michael@0 | 29 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| michael@0 | 30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 31 | */ |
| michael@0 | 32 | package net.fortuna.ical4j.util; |
| michael@0 | 33 | |
| michael@0 | 34 | import java.util.Map; |
| michael@0 | 35 | |
| michael@0 | 36 | import edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap; |
| michael@0 | 37 | |
| michael@0 | 38 | /** |
| michael@0 | 39 | * $Id$ |
| michael@0 | 40 | * |
| michael@0 | 41 | * Created on 9/03/2006 |
| michael@0 | 42 | * |
| michael@0 | 43 | * A set of keys used to enable compatibility features. |
| michael@0 | 44 | * |
| michael@0 | 45 | * @author Ben Fortuna |
| michael@0 | 46 | */ |
| michael@0 | 47 | public final class CompatibilityHints { |
| michael@0 | 48 | |
| michael@0 | 49 | /** |
| michael@0 | 50 | * A system property key to enable relaxed unfolding. Relaxed unfolding is enabled by setting this system property |
| michael@0 | 51 | * to "true". |
| michael@0 | 52 | */ |
| michael@0 | 53 | public static final String KEY_RELAXED_UNFOLDING = "ical4j.unfolding.relaxed"; |
| michael@0 | 54 | |
| michael@0 | 55 | /** |
| michael@0 | 56 | * A system property key to enable relaxed parsing. Relaxed parsing is enabled by setting this system property to |
| michael@0 | 57 | * "true". |
| michael@0 | 58 | */ |
| michael@0 | 59 | public static final String KEY_RELAXED_PARSING = "ical4j.parsing.relaxed"; |
| michael@0 | 60 | |
| michael@0 | 61 | /** |
| michael@0 | 62 | * A system property key to enable relaxed validation. Relaxed validation disables validation of certain conformance |
| michael@0 | 63 | * rules that many iCalendar implementations do not conform to. Relaxed validation is enabled by setting this system |
| michael@0 | 64 | * property to "true". |
| michael@0 | 65 | */ |
| michael@0 | 66 | public static final String KEY_RELAXED_VALIDATION = "ical4j.validation.relaxed"; |
| michael@0 | 67 | |
| michael@0 | 68 | /** |
| michael@0 | 69 | * A system property key used to enable compatibility with Outlook/Exchange-generated iCalendar files. Outlook |
| michael@0 | 70 | * compatibility is enabled by setting this system property to "true". |
| michael@0 | 71 | */ |
| michael@0 | 72 | public static final String KEY_OUTLOOK_COMPATIBILITY = "ical4j.compatibility.outlook"; |
| michael@0 | 73 | |
| michael@0 | 74 | /** |
| michael@0 | 75 | * A system property key used to enable compatibility with Lotus Notes-generated iCalendar files. Notes |
| michael@0 | 76 | * compatibility is enabled by setting this system property to "true". |
| michael@0 | 77 | */ |
| michael@0 | 78 | public static final String KEY_NOTES_COMPATIBILITY = "ical4j.compatibility.notes"; |
| michael@3 | 79 | |
| michael@3 | 80 | /** |
| michael@3 | 81 | * Support for vCard features that are not necessarily compatible with the iCalendar standard. |
| michael@3 | 82 | */ |
| michael@3 | 83 | public static final String KEY_VCARD_COMPATIBILITY = "ical4j.compatibility.vcard"; |
| michael@0 | 84 | |
| michael@0 | 85 | private static final Map HINTS = new ConcurrentHashMap(); |
| michael@0 | 86 | // preload known hints from the configurator |
| michael@0 | 87 | static { |
| michael@0 | 88 | setHintEnabled(KEY_RELAXED_UNFOLDING, "true".equals(Configurator.getProperty(KEY_RELAXED_UNFOLDING))); |
| michael@0 | 89 | setHintEnabled(KEY_RELAXED_PARSING, "true".equals(Configurator.getProperty(KEY_RELAXED_PARSING))); |
| michael@0 | 90 | setHintEnabled(KEY_RELAXED_VALIDATION, "true".equals(Configurator.getProperty(KEY_RELAXED_VALIDATION))); |
| michael@0 | 91 | setHintEnabled(KEY_OUTLOOK_COMPATIBILITY, "true".equals(Configurator.getProperty(KEY_OUTLOOK_COMPATIBILITY))); |
| michael@0 | 92 | setHintEnabled(KEY_NOTES_COMPATIBILITY, "true".equals(Configurator.getProperty(KEY_NOTES_COMPATIBILITY))); |
| michael@0 | 93 | } |
| michael@0 | 94 | |
| michael@0 | 95 | /** |
| michael@0 | 96 | * Constructor made private to enforce static nature. |
| michael@0 | 97 | */ |
| michael@0 | 98 | private CompatibilityHints() { |
| michael@0 | 99 | } |
| michael@0 | 100 | |
| michael@0 | 101 | /** |
| michael@0 | 102 | * @param key |
| michael@0 | 103 | * a compatibility hint key |
| michael@0 | 104 | * @param enabled |
| michael@0 | 105 | * indicates whether to enable or disable the compatibility hint |
| michael@0 | 106 | */ |
| michael@0 | 107 | public static void setHintEnabled(final String key, final boolean enabled) { |
| michael@0 | 108 | HINTS.put(key, Boolean.valueOf(enabled)); |
| michael@0 | 109 | } |
| michael@0 | 110 | |
| michael@0 | 111 | /** |
| michael@0 | 112 | * @param key |
| michael@0 | 113 | * a compatibility hint key |
| michael@0 | 114 | */ |
| michael@0 | 115 | public static void clearHintEnabled(final String key) { |
| michael@0 | 116 | HINTS.remove(key); |
| michael@0 | 117 | } |
| michael@0 | 118 | |
| michael@0 | 119 | /** |
| michael@0 | 120 | * @param key |
| michael@0 | 121 | * a compatibility hint key |
| michael@0 | 122 | * @return true if the specified compatibility hint is enabled, otherwise false |
| michael@0 | 123 | */ |
| michael@0 | 124 | public static boolean isHintEnabled(final String key) { |
| michael@0 | 125 | if (HINTS.get(key) != null) { |
| michael@0 | 126 | return ((Boolean) HINTS.get(key)).booleanValue(); |
| michael@0 | 127 | } |
| michael@0 | 128 | return "true".equals(Configurator.getProperty(key)); |
| michael@0 | 129 | } |
| michael@0 | 130 | } |
