diff -r 000000000000 -r fb9019fb1bf7 src/net/fortuna/ical4j/model/ComponentFactory.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/net/fortuna/ical4j/model/ComponentFactory.java Tue Feb 10 18:12:00 2015 +0100 @@ -0,0 +1,178 @@ +/** + * Copyright (c) 2012, Ben Fortuna + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * o Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * o Neither the name of Ben Fortuna nor the names of any other contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +package net.fortuna.ical4j.model; + +import net.fortuna.ical4j.model.component.Available; +import net.fortuna.ical4j.model.component.Daylight; +import net.fortuna.ical4j.model.component.Observance; +import net.fortuna.ical4j.model.component.Standard; +import net.fortuna.ical4j.model.component.VAlarm; +import net.fortuna.ical4j.model.component.VAvailability; +import net.fortuna.ical4j.model.component.VEvent; +import net.fortuna.ical4j.model.component.VFreeBusy; +import net.fortuna.ical4j.model.component.VJournal; +import net.fortuna.ical4j.model.component.VTimeZone; +import net.fortuna.ical4j.model.component.VToDo; +import net.fortuna.ical4j.model.component.VVenue; +import net.fortuna.ical4j.model.component.XComponent; +import net.fortuna.ical4j.util.CompatibilityHints; + +/** + * $Id$ [05-Apr-2004] + * + * A factory for creating iCalendar components. Note that if relaxed parsing is enabled (via specifying the system + * property: icalj.parsing.relaxed=true) illegal component names are allowed. + * @author Ben Fortuna + */ +public final class ComponentFactory { + + private static ComponentFactory instance = new ComponentFactory(); + + /** + * Constructor made private to prevent instantiation. + */ + private ComponentFactory() { + } + + /** + * @return Returns the instance. + */ + public static ComponentFactory getInstance() { + return instance; + } + + /** + * @param name a component name + * @return a new component instance of the specified type + */ + public Component createComponent(final String name) { + return createComponent(name, new PropertyList()); + } + + /** + * Creates a component. + * @param name name of the component + * @param properties a list of component properties + * @return a component + */ + public Component createComponent(final String name, final PropertyList properties) { + Component component = null; + if (Component.VALARM.equals(name)) { + component = new VAlarm(properties); + } + else if (Component.VEVENT.equals(name)) { + component = new VEvent(properties); + } + else if (Component.VFREEBUSY.equals(name)) { + component = new VFreeBusy(properties); + } + else if (Component.VJOURNAL.equals(name)) { + component = new VJournal(properties); + } + else if (Component.VTODO.equals(name)) { + component = new VToDo(properties); + } + else if (Observance.STANDARD.equals(name)) { + component = new Standard(properties); + } + else if (Observance.DAYLIGHT.equals(name)) { + component = new Daylight(properties); + } + else if (Component.VTIMEZONE.equals(name)) { + component = new VTimeZone(properties); + } + else if (Component.VVENUE.equals(name)) { + component = new VVenue(properties); + } + else if (Component.VAVAILABILITY.equals(name)) { + component = new VAvailability(properties); + } + else if (Component.AVAILABLE.equals(name)) { + component = new Available(properties); + } + else if (isExperimentalName(name)) { + component = new XComponent(name, properties); + } + else if (allowIllegalNames()) { + component = new XComponent(name, properties); + } + else { + throw new IllegalArgumentException("Illegal component [" + name + + "]"); + } + return component; + } + + /** + * Creates a component which contains sub-components. Currently the only such component is VTIMEZONE. + * @param name name of the component + * @param properties a list of component properties + * @param components a list of sub-components (namely standard/daylight timezones) + * @return a component + */ + public Component createComponent(final String name, final PropertyList properties, + final ComponentList components) { + + if (components != null) { + Component component = null; + if (Component.VTIMEZONE.equals(name)) { + component = new VTimeZone(properties, components); + } + else if (Component.VEVENT.equals(name)) { + component = new VEvent(properties, components); + } + else { + throw new IllegalArgumentException("Illegal component [" + name + + "]"); + } + return component; + } + return createComponent(name, properties); + } + + /** + * @param name + * @return + */ + private boolean isExperimentalName(final String name) { + return name.startsWith(Component.EXPERIMENTAL_PREFIX) + && name.length() > Component.EXPERIMENTAL_PREFIX.length(); + } + + /** + * @return true if non-standard names are allowed, otherwise false + */ + protected boolean allowIllegalNames() { + return CompatibilityHints + .isHintEnabled(CompatibilityHints.KEY_RELAXED_PARSING); + } +}