001    package ezvcard.parameter;
002    
003    import java.util.Collection;
004    
005    import ezvcard.property.Key;
006    
007    /**
008     * Copyright 2011 George El-Haddad. All rights reserved.
009     * 
010     * Redistribution and use in source and binary forms, with or without modification, are
011     * permitted provided that the following conditions are met:
012     * 
013     *    1. Redistributions of source code must retain the above copyright notice, this list of
014     *       conditions and the following disclaimer.
015     * 
016     *    2. Redistributions in binary form must reproduce the above copyright notice, this list
017     *       of conditions and the following disclaimer in the documentation and/or other materials
018     *       provided with the distribution.
019     * 
020     * THIS SOFTWARE IS PROVIDED BY GEORGE EL-HADDAD ''AS IS'' AND ANY EXPRESS OR IMPLIED
021     * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
022     * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GEORGE EL-HADDAD OR
023     * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
024     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
025     * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026     * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
027     * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
028     * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029     * 
030     * The views and conclusions contained in the software and documentation are those of the
031     * authors and should not be interpreted as representing official policies, either expressed
032     * or implied, of George El-Haddad.
033     */
034    
035    /*
036     Copyright (c) 2013, Michael Angstadt
037     All rights reserved.
038    
039     Redistribution and use in source and binary forms, with or without
040     modification, are permitted provided that the following conditions are met: 
041    
042     1. Redistributions of source code must retain the above copyright notice, this
043     list of conditions and the following disclaimer. 
044     2. Redistributions in binary form must reproduce the above copyright notice,
045     this list of conditions and the following disclaimer in the documentation
046     and/or other materials provided with the distribution. 
047    
048     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
049     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
050     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
051     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
052     ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
053     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
054     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
055     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
056     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
057     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
058    
059     The views and conclusions contained in the software and documentation are those
060     of the authors and should not be interpreted as representing official policies, 
061     either expressed or implied, of the FreeBSD Project.
062     */
063    
064    /**
065     * Represents the TYPE parameter of the {@link Key} property.
066     * <p>
067     * <b>Supported versions:</b> {@code 2.1, 3.0, 4.0}
068     * </p>
069     * @author George El-Haddad Mar 10, 2010
070     * @author Michael Angstadt Jul 06, 2012
071     */
072    public class KeyType extends MediaTypeParameter {
073            private static final MediaTypeCaseClasses<KeyType> enums = new MediaTypeCaseClasses<KeyType>(KeyType.class);
074    
075            public static final KeyType PGP = new KeyType("PGP", "application/pgp-keys", "pgp");
076            public static final KeyType GPG = new KeyType("GPG", "application/gpg", "gpg");
077            public static final KeyType X509 = new KeyType("X509", "application/x509", null);
078    
079            private KeyType(String value, String mediaType, String extension) {
080                    super(value, mediaType, extension);
081            }
082    
083            /**
084             * Searches for a parameter value that is defined as a static constant in
085             * this class.
086             * @param type the TYPE parameter value to search for (e.g. "PGP") or null
087             * to not search by this value
088             * @param mediaType the media type to search for (e.g.
089             * "application/pgp-keys") or null to not search by this value
090             * @param extension the file extension to search for (excluding the ".",
091             * e.g. "pgp") or null to not search by this value
092             * @return the object or null if not found
093             */
094            public static KeyType find(String type, String mediaType, String extension) {
095                    return enums.find(new String[] { type, mediaType, extension });
096            }
097    
098            /**
099             * Searches for a parameter value and creates one if it cannot be found. All
100             * objects are guaranteed to be unique, so they can be compared with
101             * {@code ==} equality.
102             * @param type the TYPE parameter value to search for (e.g. "PGP") or null
103             * to not search by this value
104             * @param mediaType the media type to search for (e.g.
105             * "application/pgp-keys") or null to not search by this value
106             * @param extension the file extension to search for (excluding the ".",
107             * e.g. "pgp") or null to not search by this value
108             * @return the object
109             */
110            public static KeyType get(String type, String mediaType, String extension) {
111                    return enums.get(new String[] { type, mediaType, extension });
112            }
113    
114            /**
115             * Gets all of the parameter values that are defined as static constants in
116             * this class.
117             * @return the parameter values
118             */
119            public static Collection<KeyType> all() {
120                    return enums.all();
121            }
122    }