/*

  * 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.extractor.html;

 import org.apache.any23.extractor.ExtractionResult;

 import org.apache.any23.extractor.ExtractorDescription;

 import org.apache.any23.extractor.ExtractorFactory;

 import org.apache.any23.extractor.SimpleExtractorFactory;

 import org.apache.any23.extractor.TagSoupExtractionResult;

 import org.apache.any23.rdf.PopularPrefixes;

 import org.apache.any23.vocab.VCARD;

 import org.openrdf.model.BNode;

 import org.openrdf.model.vocabulary.RDF;

 import org.w3c.dom.Node;

 import java.util.Arrays;

 /**

  * Extractor for the <a href="http://microformats.org/wiki/adr">adr</a>

  * microformat.

  *

  * @author Gabriele Renzi

  */

 public class AdrExtractor extends EntityBasedMicroformatExtractor {

     private static final VCARD vVCARD = VCARD.getInstance();

     private static final String[] addressFields = {

             "post-office-box",

             "extended-address",

             "street-address",

             "locality",

             "region",

             "country-name",

             "postal-code"

     };

     protected String getBaseClassName() {

         return "adr";

     }

     @Override

     protected void resetExtractor() {

         // Empty.

     }

     protected boolean extractEntity(Node node, ExtractionResult out) {

         if (null == node) return false;

         //try lat & lon

         final HTMLDocument document = new HTMLDocument(node);

         BNode adr = getBlankNodeFor(node);

         out.writeTriple(adr, RDF.TYPE, vVCARD.Address);

         final String extractorName = getDescription().getExtractorName();

         for (String field : addressFields) {

             HTMLDocument.TextField[] values = document.getPluralTextField(field);

             for (HTMLDocument.TextField val : values) {

                 conditionallyAddStringProperty(

                         val.source(),

                         adr, vVCARD.getProperty(field), val.value()

                 );

             }

         }

         HTMLDocument.TextField[] types = document.getPluralTextField("type");

         for (HTMLDocument.TextField val : types) {

             conditionallyAddStringProperty(

                     val.source(),

                     adr, vVCARD.addressType, val.value()

             );

         }

         final TagSoupExtractionResult tser = (TagSoupExtractionResult) getCurrentExtractionResult();

         tser.addResourceRoot( document.getPathToLocalRoot(), adr, this.getClass() );

         return true;

     }

     public ExtractorDescription getDescription() {

         return factory;

     }

     public final static ExtractorFactory<AdrExtractor> factory =

             SimpleExtractorFactory.create(

                     "html-mf-adr",

                     PopularPrefixes.createSubset("rdf", "vcard"),

                     Arrays.asList("text/html;q=0.1", "application/xhtml+xml;q=0.1"),

                     "example-mf-adr.html",

                     AdrExtractor.class

             );

 }