/*

  * Licensed to the Apache Software Foundation (ASF) under one or more

  * contributor license agreements.  See the NOTICE file distributed with

  * this work for additional information regarding copyright ownership.

  * The ASF licenses this file to You under the Apache License, Version 2.0

  * (the "License"); you may not use this file except in compliance with

  * the License.  You may obtain a copy of the License at

  *

  *  http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package org.apache.any23.vocab;

 import org.openrdf.model.URI;

 import java.util.HashMap;

 import java.util.Map;

 /**

  * Vocabulary class for <a href="http://gmpg.org/xfn/11">XFN</a>, as per

  * <a href="http://vocab.sindice.com/xfn/guide.html">Expressing XFN in RDF</a>.

  *

  * @author Richard Cyganiak (richard@cyganiak.de)

  */

 public class XFN extends Vocabulary {

     public static final String NS = "http://vocab.sindice.com/xfn#";

     private static XFN instance;

     public static XFN getInstance() {

         if(instance == null) {

             instance = new XFN();

         }

         return instance;

     }

     public final URI contact      = createProperty("contact");

     public final URI acquaintance = createProperty("acquaintance");

     public final URI friend       = createProperty("friend");

     public final URI met          = createProperty("met");

     public final URI coWorker     = createProperty("co-worker");

     public final URI colleague    = createProperty("colleague");

     public final URI coResident   = createProperty("co-resident");

     public final URI neighbor     = createProperty("neighbor");

     public final URI child        = createProperty("child");

     public final URI parent       = createProperty("parent");

     public final URI spouse       = createProperty("spouse");

     public final URI kin          = createProperty("kin");

     public final URI muse         = createProperty("muse");

     public final URI crush        = createProperty("crush");

     public final URI date         = createProperty("date");

     public final URI sweetheart   = createProperty("sweetheart");

     public final URI me           = createProperty("me");

     public final URI mePage = createProperty(NS, "mePage");

     private  Map<String, URI> PeopleXFNProperties;

     private Map<String, URI> HyperlinkXFNProperties;

     public URI getPropertyByLocalName(String localName) {

         return PeopleXFNProperties.get(localName);

     }

     public URI getExtendedProperty(String localName) {

         return HyperlinkXFNProperties.get(localName);

     }

     public boolean isXFNLocalName(String localName) {

         return PeopleXFNProperties.containsKey(localName);

     }

     public boolean isExtendedXFNLocalName(String localName) {

         return PeopleXFNProperties.containsKey(localName);

     }

     private URI createProperty(String localName) {

         if(HyperlinkXFNProperties == null) {

             HyperlinkXFNProperties = new HashMap<String, URI>();

         }

         if(PeopleXFNProperties == null) {

             PeopleXFNProperties =  new HashMap<String, URI>();

         }

         URI result = createProperty(NS, localName + "-hyperlink");

         HyperlinkXFNProperties.put(localName, result);

         result = createProperty(NS, localName);

         PeopleXFNProperties.put(localName, result);

         return result;

     }

     private XFN(){

         super(NS);

     }

 }