001    package ezvcard;
002    
003    /**
004     * Copyright 2011 George El-Haddad. All rights reserved.
005     * 
006     * Redistribution and use in source and binary forms, with or without modification, are
007     * permitted provided that the following conditions are met:
008     * 
009     *    1. Redistributions of source code must retain the above copyright notice, this list of
010     *       conditions and the following disclaimer.
011     * 
012     *    2. Redistributions in binary form must reproduce the above copyright notice, this list
013     *       of conditions and the following disclaimer in the documentation and/or other materials
014     *       provided with the distribution.
015     * 
016     * THIS SOFTWARE IS PROVIDED BY GEORGE EL-HADDAD ''AS IS'' AND ANY EXPRESS OR IMPLIED
017     * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
018     * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GEORGE EL-HADDAD OR
019     * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
020     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
021     * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
022     * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
023     * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
024     * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
025     * 
026     * The views and conclusions contained in the software and documentation are those of the
027     * authors and should not be interpreted as representing official policies, either expressed
028     * or implied, of George El-Haddad.
029     */
030    
031    /*
032     Copyright (c) 2013, Michael Angstadt
033     All rights reserved.
034    
035     Redistribution and use in source and binary forms, with or without
036     modification, are permitted provided that the following conditions are met: 
037    
038     1. Redistributions of source code must retain the above copyright notice, this
039     list of conditions and the following disclaimer. 
040     2. Redistributions in binary form must reproduce the above copyright notice,
041     this list of conditions and the following disclaimer in the documentation
042     and/or other materials provided with the distribution. 
043    
044     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
045     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
046     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
047     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
048     ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
049     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
050     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
051     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
052     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
053     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
054    
055     The views and conclusions contained in the software and documentation are those
056     of the authors and should not be interpreted as representing official policies, 
057     either expressed or implied, of the FreeBSD Project.
058     */
059    
060    /**
061     * Contains all possible vCard versions.
062     * @author George El-Haddad
063     * @author Michael Angstadt
064     */
065    public enum VCardVersion {
066            V2_1("2.1", null), V3_0("3.0", null), V4_0("4.0", "urn:ietf:params:xml:ns:vcard-4.0");
067    
068            private final String version;
069            private final String xmlNamespace;
070    
071            /**
072             * @param version the text representation
073             */
074            private VCardVersion(String version, String xmlNamespace) {
075                    this.version = version;
076                    this.xmlNamespace = xmlNamespace;
077            }
078    
079            /**
080             * Gets the text representation of this version.
081             * @return the text representation
082             */
083            public String getVersion() {
084                    return version;
085            }
086    
087            /**
088             * Gets the XML namespace of this version.
089             * @return the XML namespace or null if this version does not support xCard
090             */
091            public String getXmlNamespace() {
092                    return xmlNamespace;
093            }
094    
095            /**
096             * Gets a {@link VCardVersion} instance based on the given text
097             * representation.
098             * @param value the text representation
099             * @return the object or null if not found
100             */
101            public static VCardVersion valueOfByStr(String value) {
102                    for (VCardVersion version : VCardVersion.values()) {
103                            if (version.getVersion().equals(value)) {
104                                    return version;
105                            }
106                    }
107                    return null;
108            }
109    
110            /**
111             * Gets a {@link VCardVersion} instance based on the given XML namespace.
112             * @param ns the XML namespace
113             * @return the object or null if not found
114             */
115            public static VCardVersion valueOfByXmlNamespace(String ns) {
116                    for (VCardVersion version : VCardVersion.values()) {
117                            String versionNs = version.getXmlNamespace();
118                            if (versionNs != null && versionNs.equals(ns)) {
119                                    return version;
120                            }
121                    }
122                    return null;
123            }
124    
125            @Override
126            public String toString() {
127                    return version;
128            }
129    }