/*
    * 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);
     }
 
 }