1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/net/fortuna/ical4j/util/CompatibilityHints.java Tue Feb 10 18:12:00 2015 +0100
1.3 @@ -0,0 +1,125 @@
1.4 +/**
1.5 + * Copyright (c) 2012, Ben Fortuna
1.6 + * All rights reserved.
1.7 + *
1.8 + * Redistribution and use in source and binary forms, with or without
1.9 + * modification, are permitted provided that the following conditions
1.10 + * are met:
1.11 + *
1.12 + * o Redistributions of source code must retain the above copyright
1.13 + * notice, this list of conditions and the following disclaimer.
1.14 + *
1.15 + * o Redistributions in binary form must reproduce the above copyright
1.16 + * notice, this list of conditions and the following disclaimer in the
1.17 + * documentation and/or other materials provided with the distribution.
1.18 + *
1.19 + * o Neither the name of Ben Fortuna nor the names of any other contributors
1.20 + * may be used to endorse or promote products derived from this software
1.21 + * without specific prior written permission.
1.22 + *
1.23 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.24 + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.25 + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.26 + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
1.27 + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
1.28 + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
1.29 + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
1.30 + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1.31 + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
1.32 + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
1.33 + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.34 + */
1.35 +package net.fortuna.ical4j.util;
1.36 +
1.37 +import java.util.Map;
1.38 +
1.39 +import edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap;
1.40 +
1.41 +/**
1.42 + * $Id$
1.43 + *
1.44 + * Created on 9/03/2006
1.45 + *
1.46 + * A set of keys used to enable compatibility features.
1.47 + *
1.48 + * @author Ben Fortuna
1.49 + */
1.50 +public final class CompatibilityHints {
1.51 +
1.52 + /**
1.53 + * A system property key to enable relaxed unfolding. Relaxed unfolding is enabled by setting this system property
1.54 + * to "true".
1.55 + */
1.56 + public static final String KEY_RELAXED_UNFOLDING = "ical4j.unfolding.relaxed";
1.57 +
1.58 + /**
1.59 + * A system property key to enable relaxed parsing. Relaxed parsing is enabled by setting this system property to
1.60 + * "true".
1.61 + */
1.62 + public static final String KEY_RELAXED_PARSING = "ical4j.parsing.relaxed";
1.63 +
1.64 + /**
1.65 + * A system property key to enable relaxed validation. Relaxed validation disables validation of certain conformance
1.66 + * rules that many iCalendar implementations do not conform to. Relaxed validation is enabled by setting this system
1.67 + * property to "true".
1.68 + */
1.69 + public static final String KEY_RELAXED_VALIDATION = "ical4j.validation.relaxed";
1.70 +
1.71 + /**
1.72 + * A system property key used to enable compatibility with Outlook/Exchange-generated iCalendar files. Outlook
1.73 + * compatibility is enabled by setting this system property to "true".
1.74 + */
1.75 + public static final String KEY_OUTLOOK_COMPATIBILITY = "ical4j.compatibility.outlook";
1.76 +
1.77 + /**
1.78 + * A system property key used to enable compatibility with Lotus Notes-generated iCalendar files. Notes
1.79 + * compatibility is enabled by setting this system property to "true".
1.80 + */
1.81 + public static final String KEY_NOTES_COMPATIBILITY = "ical4j.compatibility.notes";
1.82 +
1.83 + private static final Map HINTS = new ConcurrentHashMap();
1.84 + // preload known hints from the configurator
1.85 + static {
1.86 + setHintEnabled(KEY_RELAXED_UNFOLDING, "true".equals(Configurator.getProperty(KEY_RELAXED_UNFOLDING)));
1.87 + setHintEnabled(KEY_RELAXED_PARSING, "true".equals(Configurator.getProperty(KEY_RELAXED_PARSING)));
1.88 + setHintEnabled(KEY_RELAXED_VALIDATION, "true".equals(Configurator.getProperty(KEY_RELAXED_VALIDATION)));
1.89 + setHintEnabled(KEY_OUTLOOK_COMPATIBILITY, "true".equals(Configurator.getProperty(KEY_OUTLOOK_COMPATIBILITY)));
1.90 + setHintEnabled(KEY_NOTES_COMPATIBILITY, "true".equals(Configurator.getProperty(KEY_NOTES_COMPATIBILITY)));
1.91 + }
1.92 +
1.93 + /**
1.94 + * Constructor made private to enforce static nature.
1.95 + */
1.96 + private CompatibilityHints() {
1.97 + }
1.98 +
1.99 + /**
1.100 + * @param key
1.101 + * a compatibility hint key
1.102 + * @param enabled
1.103 + * indicates whether to enable or disable the compatibility hint
1.104 + */
1.105 + public static void setHintEnabled(final String key, final boolean enabled) {
1.106 + HINTS.put(key, Boolean.valueOf(enabled));
1.107 + }
1.108 +
1.109 + /**
1.110 + * @param key
1.111 + * a compatibility hint key
1.112 + */
1.113 + public static void clearHintEnabled(final String key) {
1.114 + HINTS.remove(key);
1.115 + }
1.116 +
1.117 + /**
1.118 + * @param key
1.119 + * a compatibility hint key
1.120 + * @return true if the specified compatibility hint is enabled, otherwise false
1.121 + */
1.122 + public static boolean isHintEnabled(final String key) {
1.123 + if (HINTS.get(key) != null) {
1.124 + return ((Boolean) HINTS.get(key)).booleanValue();
1.125 + }
1.126 + return "true".equals(Configurator.getProperty(key));
1.127 + }
1.128 +}
