| /* |
| * 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.xml.sax.Attributes; |
| import org.xml.sax.helpers.DefaultHandler; |
| |
| public class TrieXMLEventHandler extends DefaultHandler { |
| |
| private Stack<MultiTextNode> stack; |
| |
| private boolean inContent; |
| |
| private boolean inType; |
| |
| private StringBuilder type = new StringBuilder(); |
| |
| public TrieXMLEventHandler(MultiTextNode root) { |
| super(); |
| this.stack = new Stack<MultiTextNode>(); |
| stack.add(root); |
| } |
| |
| @Override |
| public void startDocument() { |
| } |
| |
| @Override |
| public void endDocument() { |
| } |
| |
| @Override |
| public void startElement(String namespaceURI, String localName, String qualifiedName, |
| Attributes atts) { |
| if ("n".equals(localName) || "n".equals(qualifiedName)) { |
| MultiTextNode newNode = new MultiTextNode(); |
| stack.add(newNode); |
| inContent = false; |
| inType = false; |
| } |
| if ("t".equals(localName) || "t".equals(qualifiedName)) { |
| inType = true; |
| inContent = false; |
| } |
| if ("c".equals(localName) || "c".equals(qualifiedName)) { |
| inType = false; |
| inContent = true; |
| } |
| } |
| |
| @Override |
| public void endElement(String namespaceURI, String localName, String qualifiedName) { |
| if ("n".equals(localName) || "n".equals(qualifiedName)) { |
| MultiTextNode pop = stack.pop(); |
| stack.peek().addChild(pop); |
| } |
| if ("t".equals(localName) || "t".equals(qualifiedName)) { |
| stack.peek().addType(type.toString()); |
| type.setLength(0); |
| inType = false; |
| } |
| if ("c".equals(localName) || "c".equals(qualifiedName)) { |
| inContent = false; |
| } |
| } |
| |
| @Override |
| public void characters(char ch[], int start, int length) { |
| if (stack.isEmpty()) { |
| return; |
| } |
| MultiTextNode peek = stack.peek(); |
| if (inType) { |
| type.append(ch, start, length); |
| peek.setWordEnd(true); |
| } else if (inContent) { |
| if (ch.length > 0) { |
| peek.setValue(ch[0]); |
| } else { |
| peek.setValue(' '); |
| } |
| } |
| } |
| } |