| /* | |
| * 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.uima.annotator.calais; | |
| import java.util.ArrayList; | |
| import java.util.HashMap; | |
| import org.xml.sax.Attributes; | |
| import org.xml.sax.SAXException; | |
| import org.xml.sax.helpers.DefaultHandler; | |
| public class RDFSaxHandler extends DefaultHandler { | |
| DescriptionElement currentDesc = null; | |
| private boolean enableOffset = false; | |
| private boolean enableLength = false; | |
| private boolean enableDocument = false; | |
| private Offset offset; | |
| private HashMap<String, DescriptionElement> elements; | |
| private ArrayList<DescriptionElement> subjectMap; | |
| public RDFSaxHandler(HashMap<String, DescriptionElement> elements, ArrayList<DescriptionElement> subjectMap, Offset offset) { | |
| this.elements = elements; | |
| this.subjectMap = subjectMap; | |
| this.offset = offset; | |
| } | |
| /* | |
| * (non-Javadoc) | |
| * | |
| * @see org.xml.sax.helpers.DefaultHandler#endElement(java.lang.String, | |
| * java.lang.String, java.lang.String) | |
| */ | |
| public void endElement(String uri, String localName, String qName) | |
| throws SAXException { | |
| if(qName.equals("rdf:Description")) { | |
| this.elements.put(this.currentDesc.getAboutURL(), this.currentDesc); | |
| if(this.currentDesc.getSubjectURL() != null) { | |
| this.subjectMap.add(this.currentDesc); | |
| } | |
| } | |
| } | |
| /* | |
| * (non-Javadoc) | |
| * | |
| * @see org.xml.sax.helpers.DefaultHandler#startElement(java.lang.String, | |
| * java.lang.String, java.lang.String, org.xml.sax.Attributes) | |
| */ | |
| public void startElement(String uri, String localName, String qName, | |
| Attributes attributes) throws SAXException { | |
| if(qName.equals("rdf:Description")) { | |
| this.currentDesc = new DescriptionElement(); | |
| // get "about" attribute value | |
| this.currentDesc.setAboutURL(attributes.getValue("rdf:about")); | |
| } else if(qName.equals("rdf:type")) { | |
| // get "resource" attribute value | |
| this.currentDesc.setTypeURL(attributes.getValue("rdf:resource")); | |
| } else if(qName.equals("c:subject")) { | |
| // get "resource" attribute value | |
| this.currentDesc.setSubjectURL(attributes.getValue("rdf:resource")); | |
| } else if(qName.equals("c:offset")) { | |
| this.enableOffset = true; | |
| } else if(qName.equals("c:length")) { | |
| this.enableLength = true; | |
| } else if(qName.equals("rdf:RDF")) { | |
| this.enableDocument = true; | |
| } | |
| } | |
| @Override | |
| public void characters(char[] ch, int start, int length) throws SAXException { | |
| if(this.enableOffset) { | |
| this.currentDesc.setOffset(Integer.parseInt(new String(ch, start, length))); | |
| this.enableOffset = false; | |
| } else if(this.enableLength) { | |
| this.currentDesc.setLength(Integer.parseInt(new String(ch, start, length))); | |
| this.enableLength = false; | |
| } else if(this.enableDocument) { | |
| String documentText = new String(ch, start, length); | |
| this.offset.setOffset(documentText.toLowerCase().indexOf("<body>") + 6); | |
| this.enableDocument = false; | |
| } | |
| } | |
| } |