1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package org.apache.harmony.xml.parsers; 18 19 import java.util.HashMap; 20 import java.util.Map; 21 import javax.xml.parsers.ParserConfigurationException; 22 import javax.xml.parsers.SAXParser; 23 import javax.xml.parsers.SAXParserFactory; 24 import org.xml.sax.SAXNotRecognizedException; 25 26 /** 27 * Provides a straightforward SAXParserFactory implementation based on 28 * Expat. The class is used internally only, thus only notable members 29 * that are not already in the abstract superclass are documented. 30 */ 31 public class SAXParserFactoryImpl extends SAXParserFactory { 32 33 private static final String NAMESPACES 34 = "http://xml.org/sax/features/namespaces"; 35 36 private static final String VALIDATION 37 = "http://xml.org/sax/features/validation"; 38 39 private Map<String, Boolean> features = new HashMap<String, Boolean>(); 40 41 @Override getFeature(String name)42 public boolean getFeature(String name) throws SAXNotRecognizedException { 43 if (name == null) { 44 throw new NullPointerException("name == null"); 45 } 46 47 if (!name.startsWith("http://xml.org/sax/features/")) { 48 throw new SAXNotRecognizedException(name); 49 } 50 51 return Boolean.TRUE.equals(features.get(name)); 52 } 53 54 @Override isNamespaceAware()55 public boolean isNamespaceAware() { 56 try { 57 return getFeature(NAMESPACES); 58 } catch (SAXNotRecognizedException ex) { 59 throw new AssertionError(ex); 60 } 61 } 62 63 @Override isValidating()64 public boolean isValidating() { 65 try { 66 return getFeature(VALIDATION); 67 } catch (SAXNotRecognizedException ex) { 68 throw new AssertionError(ex); 69 } 70 } 71 72 @Override newSAXParser()73 public SAXParser newSAXParser() throws ParserConfigurationException { 74 if (isValidating()) { 75 throw new ParserConfigurationException( 76 "No validating SAXParser implementation available"); 77 } 78 79 try { 80 return new SAXParserImpl(features); 81 } catch (Exception ex) { 82 throw new ParserConfigurationException(ex.toString()); 83 } 84 } 85 86 @Override setFeature(String name, boolean value)87 public void setFeature(String name, boolean value) throws SAXNotRecognizedException { 88 if (name == null) { 89 throw new NullPointerException("name == null"); 90 } 91 92 if (!name.startsWith("http://xml.org/sax/features/")) { 93 throw new SAXNotRecognizedException(name); 94 } 95 96 if (value) { 97 features.put(name, Boolean.TRUE); 98 } else { 99 // This is needed to disable features that are enabled by default. 100 features.put(name, Boolean.FALSE); 101 } 102 } 103 104 @Override setNamespaceAware(boolean value)105 public void setNamespaceAware(boolean value) { 106 try { 107 setFeature(NAMESPACES, value); 108 } catch (SAXNotRecognizedException ex) { 109 throw new AssertionError(ex); 110 } 111 } 112 113 @Override setValidating(boolean value)114 public void setValidating(boolean value) { 115 try { 116 setFeature(VALIDATION, value); 117 } catch (SAXNotRecognizedException ex) { 118 throw new AssertionError(ex); 119 } 120 } 121 } 122