| /* |
| * 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.ruta.resource; |
| |
| import java.util.Stack; |
| |
| import org.apache.commons.text.StringEscapeUtils; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.helpers.DefaultHandler; |
| |
| public class XMLEventHandler extends DefaultHandler { |
| |
| Stack<TextNode> stack; |
| |
| public XMLEventHandler(TextNode root) { |
| super(); |
| stack = new Stack<TextNode>(); |
| stack.add(root); |
| } |
| |
| @Override |
| public void startDocument() { |
| } |
| |
| @Override |
| public void endDocument() { |
| } |
| |
| @Override |
| public void startElement(String namespaceURI, String localName, String qualifiedName, |
| Attributes atts) { |
| if ("node".equals(localName) || "node".equals(qualifiedName)) { |
| String value = atts.getValue("char"); |
| // unescaping should and is be done by the parser |
| String unescapeXml = StringEscapeUtils.unescapeXml(value); |
| char c = unescapeXml.charAt(0); |
| boolean isWordEnd = Boolean.valueOf(atts.getValue("isWordEnd")); |
| TextNode newNode = new TextNode(c, isWordEnd); |
| stack.peek().addChild(newNode); |
| stack.add(newNode); |
| } |
| |
| } |
| |
| @Override |
| public void endElement(String namespaceURI, String localName, String qualifiedName) { |
| if ("node".equals(localName) || "node".equals(qualifiedName)) { |
| stack.pop(); |
| } |
| } |
| |
| } |