1 /*
2 * reserved comment block
3 * DO NOT REMOVE OR ALTER!
4 */
5 /*
6 * Copyright 2005 The Apache Software Foundation.
7 *
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 */
20
21 package com.sun.org.apache.xerces.internal.jaxp.validation;
22
23 import com.sun.org.apache.xerces.internal.impl.Constants;
24 import com.sun.org.apache.xerces.internal.impl.XMLErrorReporter;
25 import com.sun.org.apache.xerces.internal.impl.msg.XMLMessageFormatter;
26 import com.sun.org.apache.xerces.internal.parsers.XML11Configuration;
27 import com.sun.org.apache.xerces.internal.utils.XMLSecurityManager;
28 import com.sun.org.apache.xerces.internal.xni.XNIException;
29 import com.sun.org.apache.xerces.internal.xni.parser.XMLInputSource;
30 import com.sun.org.apache.xerces.internal.xni.parser.XMLParseException;
31 import com.sun.org.apache.xerces.internal.xni.parser.XMLParserConfiguration;
32 import java.io.IOException;
33 import java.lang.ref.SoftReference;
34 import javax.xml.XMLConstants;
35 import javax.xml.transform.Result;
36 import javax.xml.transform.Source;
37 import javax.xml.transform.TransformerConfigurationException;
38 import javax.xml.transform.TransformerFactory;
39 import javax.xml.transform.TransformerFactoryConfigurationError;
40 import javax.xml.transform.sax.SAXTransformerFactory;
41 import javax.xml.transform.sax.TransformerHandler;
42 import javax.xml.transform.stream.StreamResult;
43 import javax.xml.transform.stream.StreamSource;
44 import org.xml.sax.SAXException;
45
46 /**
47 * <p>A validator helper for <code>StreamSource</code>s.</p>
48 *
49 * @author Michael Glavassevich, IBM
50 * @author <a href="mailto:Sunitha.Reddy@Sun.com">Sunitha Reddy</a>
51 */
52 final class StreamValidatorHelper implements ValidatorHelper {
53
54 // feature identifiers
55
56 /** Feature identifier: parser settings. */
57 private static final String PARSER_SETTINGS =
58 Constants.XERCES_FEATURE_PREFIX + Constants.PARSER_SETTINGS;
59
60 // property identifiers
61
62 /** Property identifier: entity resolver. */
63 private static final String ENTITY_RESOLVER =
64 Constants.XERCES_PROPERTY_PREFIX + Constants.ENTITY_RESOLVER_PROPERTY;
65
66 /** Property identifier: error handler. */
67 private static final String ERROR_HANDLER =
68 Constants.XERCES_PROPERTY_PREFIX + Constants.ERROR_HANDLER_PROPERTY;
69
70 /** Property identifier: error reporter. */
71 private static final String ERROR_REPORTER =
72 Constants.XERCES_PROPERTY_PREFIX + Constants.ERROR_REPORTER_PROPERTY;
73
74 /** Property identifier: XML Schema validator. */
75 private static final String SCHEMA_VALIDATOR =
76 Constants.XERCES_PROPERTY_PREFIX + Constants.SCHEMA_VALIDATOR_PROPERTY;
77
78 /** Property identifier: symbol table. */
79 private static final String SYMBOL_TABLE =
80 Constants.XERCES_PROPERTY_PREFIX + Constants.SYMBOL_TABLE_PROPERTY;
81
82 /** Property identifier: validation manager. */
83 private static final String VALIDATION_MANAGER =
84 Constants.XERCES_PROPERTY_PREFIX + Constants.VALIDATION_MANAGER_PROPERTY;
85
86 private static final String DEFAULT_TRANSFORMER_IMPL = "com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl";
87
88 /** Property id: security manager. */
89 private static final String SECURITY_MANAGER =
90 Constants.XERCES_PROPERTY_PREFIX + Constants.SECURITY_MANAGER_PROPERTY;
91
92 //
93 // Data
94 //
95
96 /** SoftReference to parser configuration. **/
97 private SoftReference fConfiguration = new SoftReference(null);
98
99 /** Schema validator. **/
100 private com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator fSchemaValidator;
101
102 /** Component manager. **/
103 private XMLSchemaValidatorComponentManager fComponentManager;
104
105 private ValidatorHandlerImpl handler = null;
106
107 public StreamValidatorHelper(XMLSchemaValidatorComponentManager componentManager) {
108 fComponentManager = componentManager;
109 fSchemaValidator = (com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator) fComponentManager.getProperty(SCHEMA_VALIDATOR);
110 }
111
112 public void validate(Source source, Result result)
113 throws SAXException, IOException {
114 if (result == null || result instanceof StreamResult) {
115 final StreamSource streamSource = (StreamSource) source;
116 TransformerHandler identityTransformerHandler ;
117
118 if( result!=null ) {
119 try {
120 SAXTransformerFactory tf = fComponentManager.getFeature(Constants.ORACLE_FEATURE_SERVICE_MECHANISM) ?
121 (SAXTransformerFactory)SAXTransformerFactory.newInstance()
122 : (SAXTransformerFactory) TransformerFactory.newInstance(DEFAULT_TRANSFORMER_IMPL, StreamValidatorHelper.class.getClassLoader());
123 identityTransformerHandler = tf.newTransformerHandler();
124 } catch (TransformerConfigurationException e) {
125 throw new TransformerFactoryConfigurationError(e);
126 }
127
128 handler = new ValidatorHandlerImpl(fComponentManager);
129 handler.setContentHandler(identityTransformerHandler);
130 identityTransformerHandler.setResult(result);
131 }
132
133 XMLInputSource input = new XMLInputSource(streamSource.getPublicId(), streamSource.getSystemId(), null, false);
134 input.setByteStream(streamSource.getInputStream());
135 input.setCharacterStream(streamSource.getReader());
136
137 // Gets the parser configuration. We'll create and initialize a new one, if we
138 // haven't created one before or if the previous one was garbage collected.
139 XMLParserConfiguration config = (XMLParserConfiguration) fConfiguration.get();
140 if (config == null) {
141 config = initialize();
142 }
143 // If settings have changed on the component manager, refresh the error handler and entity resolver.
144 else if (fComponentManager.getFeature(PARSER_SETTINGS)) {
145 config.setProperty(ENTITY_RESOLVER, fComponentManager.getProperty(ENTITY_RESOLVER));
146 config.setProperty(ERROR_HANDLER, fComponentManager.getProperty(ERROR_HANDLER));
147 }
148
149 // prepare for parse
150 fComponentManager.reset();
151 fSchemaValidator.setDocumentHandler(handler);
152
153 try {
154 config.parse(input);
155 }
156 catch (XMLParseException e) {
157 throw Util.toSAXParseException(e);
158 }
159 catch (XNIException e) {
160 throw Util.toSAXException(e);
161 }
162 return;
163 }
164 throw new IllegalArgumentException(JAXPValidationMessageFormatter.formatMessage(fComponentManager.getLocale(),
165 "SourceResultMismatch",
166 new Object [] {source.getClass().getName(), result.getClass().getName()}));
167 }
168
169 private XMLParserConfiguration initialize() {
170 XML11Configuration config = new XML11Configuration();
171 if (fComponentManager.getFeature(XMLConstants.FEATURE_SECURE_PROCESSING)) {
172 config.setProperty(SECURITY_MANAGER, new XMLSecurityManager());
173 }
174 config.setProperty(ENTITY_RESOLVER, fComponentManager.getProperty(ENTITY_RESOLVER));
175 config.setProperty(ERROR_HANDLER, fComponentManager.getProperty(ERROR_HANDLER));
176 XMLErrorReporter errorReporter = (XMLErrorReporter) fComponentManager.getProperty(ERROR_REPORTER);
177 config.setProperty(ERROR_REPORTER, errorReporter);
178 // add message formatters
179 if (errorReporter.getMessageFormatter(XMLMessageFormatter.XML_DOMAIN) == null) {
180 XMLMessageFormatter xmft = new XMLMessageFormatter();
181 errorReporter.putMessageFormatter(XMLMessageFormatter.XML_DOMAIN, xmft);
182 errorReporter.putMessageFormatter(XMLMessageFormatter.XMLNS_DOMAIN, xmft);
183 }
184 config.setProperty(SYMBOL_TABLE, fComponentManager.getProperty(SYMBOL_TABLE));
185 config.setProperty(VALIDATION_MANAGER, fComponentManager.getProperty(VALIDATION_MANAGER));
186 config.setDocumentHandler(fSchemaValidator);
187 config.setDTDHandler(null);
188 config.setDTDContentModelHandler(null);
189 config.setProperty(Constants.XML_SECURITY_PROPERTY_MANAGER,
190 fComponentManager.getProperty(Constants.XML_SECURITY_PROPERTY_MANAGER));
191 config.setProperty(Constants.SECURITY_MANAGER,
192 fComponentManager.getProperty(Constants.SECURITY_MANAGER));
193 fConfiguration = new SoftReference(config);
194 return config;
195 }
196
197 } // StreamValidatorHelper