001    package ezvcard.property;
002    
003    import java.util.UUID;
004    
005    /*
006     Copyright (c) 2013, Michael Angstadt
007     All rights reserved.
008    
009     Redistribution and use in source and binary forms, with or without
010     modification, are permitted provided that the following conditions are met: 
011    
012     1. Redistributions of source code must retain the above copyright notice, this
013     list of conditions and the following disclaimer. 
014     2. Redistributions in binary form must reproduce the above copyright notice,
015     this list of conditions and the following disclaimer in the documentation
016     and/or other materials provided with the distribution. 
017    
018     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
019     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
020     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
021     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
022     ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
023     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
024     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
025     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
026     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
027     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
028    
029     The views and conclusions contained in the software and documentation are those
030     of the authors and should not be interpreted as representing official policies, 
031     either expressed or implied, of the FreeBSD Project.
032     */
033    
034    /**
035     * A globally unique identifier of the person.
036     * 
037     * <p>
038     * <b>Code sample</b>
039     * </p>
040     * 
041     * <pre class="brush:java">
042     * VCard vcard = new VCard();
043     * 
044     * Uid uid = new Uid(&quot;urn:uuid:b8767877-b4a1-4c70-9acc-505d3819e519&quot;);
045     * vcard.setUid(uid);
046     * 
047     * //generate a random UID
048     * uid = Uid.random();
049     * vcard.setUid(uid);
050     * </pre>
051     * 
052     * <p>
053     * <b>Property name:</b> {@code UID}
054     * </p>
055     * <p>
056     * <b>Supported versions:</b> {@code 2.1, 3.0, 4.0}
057     * </p>
058     * @author Michael Angstadt
059     */
060    public class Uid extends UriProperty {
061            /**
062             * Creates a UID property.
063             * @param uid the UID
064             */
065            public Uid(String uid) {
066                    super(uid);
067            }
068    
069            /**
070             * Generates a UID property that contains a random UID URI.
071             * @return a UID property with a random UID URI
072             */
073            public static Uid random() {
074                    String uuid = UUID.randomUUID().toString();
075                    return new Uid("urn:uuid:" + uuid);
076            }
077    }