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comparison: src/net/fortuna/ical4j/model/ComponentFactory.java
src/net/fortuna/ical4j/model/ComponentFactory.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.model; | |
| 33 | |
| 34 import net.fortuna.ical4j.model.component.Available; | |
| 35 import net.fortuna.ical4j.model.component.Daylight; | |
| 36 import net.fortuna.ical4j.model.component.Observance; | |
| 37 import net.fortuna.ical4j.model.component.Standard; | |
| 38 import net.fortuna.ical4j.model.component.VAlarm; | |
| 39 import net.fortuna.ical4j.model.component.VAvailability; | |
| 40 import net.fortuna.ical4j.model.component.VEvent; | |
| 41 import net.fortuna.ical4j.model.component.VFreeBusy; | |
| 42 import net.fortuna.ical4j.model.component.VJournal; | |
| 43 import net.fortuna.ical4j.model.component.VTimeZone; | |
| 44 import net.fortuna.ical4j.model.component.VToDo; | |
| 45 import net.fortuna.ical4j.model.component.VVenue; | |
| 46 import net.fortuna.ical4j.model.component.XComponent; | |
| 47 import net.fortuna.ical4j.util.CompatibilityHints; | |
| 48 | |
| 49 /** | |
| 50 * $Id$ [05-Apr-2004] | |
| 51 * | |
| 52 * A factory for creating iCalendar components. Note that if relaxed parsing is enabled (via specifying the system | |
| 53 * property: icalj.parsing.relaxed=true) illegal component names are allowed. | |
| 54 * @author Ben Fortuna | |
| 55 */ | |
| 56 public final class ComponentFactory { | |
| 57 | |
| 58 private static ComponentFactory instance = new ComponentFactory(); | |
| 59 | |
| 60 /** | |
| 61 * Constructor made private to prevent instantiation. | |
| 62 */ | |
| 63 private ComponentFactory() { | |
| 64 } | |
| 65 | |
| 66 /** | |
| 67 * @return Returns the instance. | |
| 68 */ | |
| 69 public static ComponentFactory getInstance() { | |
| 70 return instance; | |
| 71 } | |
| 72 | |
| 73 /** | |
| 74 * @param name a component name | |
| 75 * @return a new component instance of the specified type | |
| 76 */ | |
| 77 public Component createComponent(final String name) { | |
| 78 return createComponent(name, new PropertyList()); | |
| 79 } | |
| 80 | |
| 81 /** | |
| 82 * Creates a component. | |
| 83 * @param name name of the component | |
| 84 * @param properties a list of component properties | |
| 85 * @return a component | |
| 86 */ | |
| 87 public Component createComponent(final String name, final PropertyList properties) { | |
| 88 Component component = null; | |
| 89 if (Component.VALARM.equals(name)) { | |
| 90 component = new VAlarm(properties); | |
| 91 } | |
| 92 else if (Component.VEVENT.equals(name)) { | |
| 93 component = new VEvent(properties); | |
| 94 } | |
| 95 else if (Component.VFREEBUSY.equals(name)) { | |
| 96 component = new VFreeBusy(properties); | |
| 97 } | |
| 98 else if (Component.VJOURNAL.equals(name)) { | |
| 99 component = new VJournal(properties); | |
| 100 } | |
| 101 else if (Component.VTODO.equals(name)) { | |
| 102 component = new VToDo(properties); | |
| 103 } | |
| 104 else if (Observance.STANDARD.equals(name)) { | |
| 105 component = new Standard(properties); | |
| 106 } | |
| 107 else if (Observance.DAYLIGHT.equals(name)) { | |
| 108 component = new Daylight(properties); | |
| 109 } | |
| 110 else if (Component.VTIMEZONE.equals(name)) { | |
| 111 component = new VTimeZone(properties); | |
| 112 } | |
| 113 else if (Component.VVENUE.equals(name)) { | |
| 114 component = new VVenue(properties); | |
| 115 } | |
| 116 else if (Component.VAVAILABILITY.equals(name)) { | |
| 117 component = new VAvailability(properties); | |
| 118 } | |
| 119 else if (Component.AVAILABLE.equals(name)) { | |
| 120 component = new Available(properties); | |
| 121 } | |
| 122 else if (isExperimentalName(name)) { | |
| 123 component = new XComponent(name, properties); | |
| 124 } | |
| 125 else if (allowIllegalNames()) { | |
| 126 component = new XComponent(name, properties); | |
| 127 } | |
| 128 else { | |
| 129 throw new IllegalArgumentException("Illegal component [" + name | |
| 130 + "]"); | |
| 131 } | |
| 132 return component; | |
| 133 } | |
| 134 | |
| 135 /** | |
| 136 * Creates a component which contains sub-components. Currently the only such component is VTIMEZONE. | |
| 137 * @param name name of the component | |
| 138 * @param properties a list of component properties | |
| 139 * @param components a list of sub-components (namely standard/daylight timezones) | |
| 140 * @return a component | |
| 141 */ | |
| 142 public Component createComponent(final String name, final PropertyList properties, | |
| 143 final ComponentList components) { | |
| 144 | |
| 145 if (components != null) { | |
| 146 Component component = null; | |
| 147 if (Component.VTIMEZONE.equals(name)) { | |
| 148 component = new VTimeZone(properties, components); | |
| 149 } | |
| 150 else if (Component.VEVENT.equals(name)) { | |
| 151 component = new VEvent(properties, components); | |
| 152 } | |
| 153 else { | |
| 154 throw new IllegalArgumentException("Illegal component [" + name | |
| 155 + "]"); | |
| 156 } | |
| 157 return component; | |
| 158 } | |
| 159 return createComponent(name, properties); | |
| 160 } | |
| 161 | |
| 162 /** | |
| 163 * @param name | |
| 164 * @return | |
| 165 */ | |
| 166 private boolean isExperimentalName(final String name) { | |
| 167 return name.startsWith(Component.EXPERIMENTAL_PREFIX) | |
| 168 && name.length() > Component.EXPERIMENTAL_PREFIX.length(); | |
| 169 } | |
| 170 | |
| 171 /** | |
| 172 * @return true if non-standard names are allowed, otherwise false | |
| 173 */ | |
| 174 protected boolean allowIllegalNames() { | |
| 175 return CompatibilityHints | |
| 176 .isHintEnabled(CompatibilityHints.KEY_RELAXED_PARSING); | |
| 177 } | |
| 178 } |
