src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/util/transform/EfficientStreamingTransformer.java

Thu, 31 Aug 2017 15:18:52 +0800

author
aoqi
date
Thu, 31 Aug 2017 15:18:52 +0800
changeset 637
9c07ef4934dd
parent 368
0989ad8c0860
parent 0
373ffda63c9a
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 /*
aoqi@0 27 * EfficientStreamingTransformer.java
aoqi@0 28 *
aoqi@0 29 * Created on July 29, 2002, 3:49 PM
aoqi@0 30 */
aoqi@0 31
aoqi@0 32 package com.sun.xml.internal.messaging.saaj.util.transform;
aoqi@0 33
aoqi@0 34 import java.io.*;
aoqi@0 35
aoqi@0 36 import java.net.URISyntaxException;
aoqi@0 37 import javax.xml.transform.dom.DOMSource;
aoqi@0 38 import javax.xml.transform.dom.DOMResult;
aoqi@0 39 import javax.xml.transform.stream.StreamResult;
aoqi@0 40 import javax.xml.transform.stream.StreamSource;
aoqi@0 41
aoqi@0 42 import org.w3c.dom.Document;
aoqi@0 43
aoqi@0 44 import com.sun.xml.internal.messaging.saaj.util.XMLDeclarationParser;
aoqi@0 45 import com.sun.xml.internal.messaging.saaj.util.FastInfosetReflection;
aoqi@0 46 import java.net.URI;
aoqi@0 47 import javax.xml.transform.Transformer;
aoqi@0 48 import javax.xml.transform.TransformerException;
aoqi@0 49 import javax.xml.transform.TransformerFactory;
aoqi@0 50
aoqi@0 51 /**
aoqi@0 52 * This class is a proxy for a Transformer object with optimizations
aoqi@0 53 * for certain cases. If source and result are of type stream, then
aoqi@0 54 * bytes are simply copied whenever possible (note that this assumes
aoqi@0 55 * that the input is well formed). In addition, it provides support for
aoqi@0 56 * FI using native DOM parsers and serializers.
aoqi@0 57 *
aoqi@0 58 * @author Panos Kougiouris panos@acm.org
aoqi@0 59 * @author Santiago.PericasGeertsen@sun.com
aoqi@0 60 *
aoqi@0 61 */
aoqi@0 62 public class EfficientStreamingTransformer
aoqi@0 63 extends javax.xml.transform.Transformer {
aoqi@0 64
aoqi@0 65 //static final String version;
aoqi@0 66 //static final String vendor;
aoqi@0 67 // removing static : security issue : CR 6813167Z
aoqi@0 68 private final TransformerFactory transformerFactory = TransformerFactory.newInstance();
aoqi@0 69
aoqi@0 70 /**
aoqi@0 71 removing support for Java 1.4 and 1.3 : CR6658158
aoqi@0 72 static {
aoqi@0 73 version = System.getProperty("java.vm.version");
aoqi@0 74 vendor = System.getProperty("java.vm.vendor");
aoqi@0 75 if (vendor.startsWith("Sun") &&
aoqi@0 76 (version.startsWith("1.4") || version.startsWith("1.3"))) {
aoqi@0 77 transformerFactory =
aoqi@0 78 new com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl();
aoqi@0 79 }
aoqi@0 80 }*/
aoqi@0 81
aoqi@0 82 /**
aoqi@0 83 * TransformerFactory instance.
aoqi@0 84 */
aoqi@0 85
aoqi@0 86 /**
aoqi@0 87 * Underlying XSLT transformer.
aoqi@0 88 */
aoqi@0 89 private Transformer m_realTransformer = null;
aoqi@0 90
aoqi@0 91 /**
aoqi@0 92 * Undelying FI DOM parser.
aoqi@0 93 */
aoqi@0 94 private Object m_fiDOMDocumentParser = null;
aoqi@0 95
aoqi@0 96 /**
aoqi@0 97 * Underlying FI DOM serializer.
aoqi@0 98 */
aoqi@0 99 private Object m_fiDOMDocumentSerializer = null;
aoqi@0 100
aoqi@0 101 private EfficientStreamingTransformer() {
aoqi@0 102 }
aoqi@0 103
aoqi@0 104 private void materialize() throws TransformerException {
aoqi@0 105 if (m_realTransformer == null) {
aoqi@0 106 m_realTransformer = transformerFactory.newTransformer();
aoqi@0 107 }
aoqi@0 108 }
aoqi@0 109
aoqi@0 110 public void clearParameters() {
aoqi@0 111 if (m_realTransformer != null)
aoqi@0 112 m_realTransformer.clearParameters();
aoqi@0 113 }
aoqi@0 114
aoqi@0 115 public javax.xml.transform.ErrorListener getErrorListener() {
aoqi@0 116 try {
aoqi@0 117 materialize();
aoqi@0 118 return m_realTransformer.getErrorListener();
aoqi@0 119 } catch (TransformerException e) {
aoqi@0 120 // will be caught later
aoqi@0 121 }
aoqi@0 122 return null;
aoqi@0 123 }
aoqi@0 124
aoqi@0 125 public java.util.Properties getOutputProperties() {
aoqi@0 126 try {
aoqi@0 127 materialize();
aoqi@0 128 return m_realTransformer.getOutputProperties();
aoqi@0 129 } catch (TransformerException e) {
aoqi@0 130 // will be caught later
aoqi@0 131 }
aoqi@0 132 return null;
aoqi@0 133 }
aoqi@0 134
aoqi@0 135 public String getOutputProperty(String str)
aoqi@0 136 throws java.lang.IllegalArgumentException {
aoqi@0 137 try {
aoqi@0 138 materialize();
aoqi@0 139 return m_realTransformer.getOutputProperty(str);
aoqi@0 140 } catch (TransformerException e) {
aoqi@0 141 // will be caught later
aoqi@0 142 }
aoqi@0 143 return null;
aoqi@0 144 }
aoqi@0 145
aoqi@0 146 public Object getParameter(String str) {
aoqi@0 147 try {
aoqi@0 148 materialize();
aoqi@0 149 return m_realTransformer.getParameter(str);
aoqi@0 150 } catch (TransformerException e) {
aoqi@0 151 // will be caught later
aoqi@0 152 }
aoqi@0 153 return null;
aoqi@0 154 }
aoqi@0 155
aoqi@0 156 public javax.xml.transform.URIResolver getURIResolver() {
aoqi@0 157 try {
aoqi@0 158 materialize();
aoqi@0 159 return m_realTransformer.getURIResolver();
aoqi@0 160 } catch (TransformerException e) {
aoqi@0 161 // will be caught later
aoqi@0 162 }
aoqi@0 163 return null;
aoqi@0 164 }
aoqi@0 165
aoqi@0 166 public void setErrorListener(
aoqi@0 167 javax.xml.transform.ErrorListener errorListener)
aoqi@0 168 throws java.lang.IllegalArgumentException {
aoqi@0 169 try {
aoqi@0 170 materialize();
aoqi@0 171 m_realTransformer.setErrorListener(errorListener);
aoqi@0 172 } catch (TransformerException e) {
aoqi@0 173 // will be caught later
aoqi@0 174 }
aoqi@0 175 }
aoqi@0 176
aoqi@0 177 public void setOutputProperties(java.util.Properties properties)
aoqi@0 178 throws java.lang.IllegalArgumentException {
aoqi@0 179 try {
aoqi@0 180 materialize();
aoqi@0 181 m_realTransformer.setOutputProperties(properties);
aoqi@0 182 } catch (TransformerException e) {
aoqi@0 183 // will be caught later
aoqi@0 184 }
aoqi@0 185 }
aoqi@0 186
aoqi@0 187 public void setOutputProperty(String str, String str1)
aoqi@0 188 throws java.lang.IllegalArgumentException {
aoqi@0 189 try {
aoqi@0 190 materialize();
aoqi@0 191 m_realTransformer.setOutputProperty(str, str1);
aoqi@0 192 } catch (TransformerException e) {
aoqi@0 193 // will be caught later
aoqi@0 194 }
aoqi@0 195 }
aoqi@0 196
aoqi@0 197 public void setParameter(String str, Object obj) {
aoqi@0 198 try {
aoqi@0 199 materialize();
aoqi@0 200 m_realTransformer.setParameter(str, obj);
aoqi@0 201 } catch (TransformerException e) {
aoqi@0 202 // will be caught later
aoqi@0 203 }
aoqi@0 204 }
aoqi@0 205
aoqi@0 206 public void setURIResolver(javax.xml.transform.URIResolver uRIResolver) {
aoqi@0 207 try {
aoqi@0 208 materialize();
aoqi@0 209 m_realTransformer.setURIResolver(uRIResolver);
aoqi@0 210 } catch (TransformerException e) {
aoqi@0 211 // will be caught later
aoqi@0 212 }
aoqi@0 213 }
aoqi@0 214
aoqi@0 215 private InputStream getInputStreamFromSource(StreamSource s)
aoqi@0 216 throws TransformerException {
aoqi@0 217
aoqi@0 218 InputStream stream = s.getInputStream();
aoqi@0 219 if (stream != null)
aoqi@0 220 return stream;
aoqi@0 221
aoqi@0 222 if (s.getReader() != null)
aoqi@0 223 return null;
aoqi@0 224
aoqi@0 225 String systemId = s.getSystemId();
aoqi@0 226 if (systemId != null) {
aoqi@0 227 try {
aoqi@0 228 String fileURL = systemId;
aoqi@0 229
aoqi@0 230 if (systemId.startsWith("file:///"))
aoqi@0 231 {
aoqi@0 232 /*
aoqi@0 233 systemId is:
aoqi@0 234 file:///<drive>:/some/path/file.xml
aoqi@0 235 or
aoqi@0 236 file:///some/path/file.xml
aoqi@0 237 */
aoqi@0 238
aoqi@0 239 String absolutePath = systemId.substring(7);
aoqi@0 240 /*
aoqi@0 241 /<drive>:/some/path/file.xml
aoqi@0 242 or
aoqi@0 243 /some/path/file.xml
aoqi@0 244 */
aoqi@0 245
aoqi@0 246 boolean hasDriveDesignator = absolutePath.indexOf(":") > 0;
aoqi@0 247 if (hasDriveDesignator) {
aoqi@0 248 String driveDesignatedPath = absolutePath.substring(1);
aoqi@0 249 /*
aoqi@0 250 <drive>:/some/path/file.xml */
aoqi@0 251 fileURL = driveDesignatedPath;
aoqi@0 252 }
aoqi@0 253 else {
aoqi@0 254 /*
aoqi@0 255 /some/path/file.xml */
aoqi@0 256 fileURL = absolutePath;
aoqi@0 257 }
aoqi@0 258 }
aoqi@0 259 //return new FileInputStream(fileURL);
aoqi@0 260 try {
aoqi@0 261 return new FileInputStream(new File(new URI(fileURL)));
aoqi@0 262 } catch (URISyntaxException ex) {
aoqi@0 263 throw new TransformerException(ex);
aoqi@0 264 }
aoqi@0 265 } catch (IOException e) {
aoqi@0 266 throw new TransformerException(e.toString());
aoqi@0 267 }
aoqi@0 268 }
aoqi@0 269
aoqi@0 270 throw new TransformerException("Unexpected StreamSource object");
aoqi@0 271 }
aoqi@0 272
aoqi@0 273 //------------------------------------------------------------------------
aoqi@0 274
aoqi@0 275 public void transform(
aoqi@0 276 javax.xml.transform.Source source,
aoqi@0 277 javax.xml.transform.Result result)
aoqi@0 278 throws javax.xml.transform.TransformerException
aoqi@0 279 {
aoqi@0 280 // StreamSource -> StreamResult
aoqi@0 281 if ((source instanceof StreamSource)
aoqi@0 282 && (result instanceof StreamResult)) {
aoqi@0 283 try {
aoqi@0 284 StreamSource streamSource = (StreamSource) source;
aoqi@0 285 InputStream is = getInputStreamFromSource(streamSource);
aoqi@0 286
aoqi@0 287 OutputStream os = ((StreamResult) result).getOutputStream();
aoqi@0 288 if (os == null)
aoqi@0 289 // TODO: We might want to fix this if it were to be used beyond
aoqi@0 290 // XmlDataContentHandler that we know uses only OutputStream
aoqi@0 291 throw new TransformerException("Unexpected StreamResult object contains null OutputStream");
aoqi@0 292
aoqi@0 293 if (is != null) {
aoqi@0 294 if (is.markSupported())
aoqi@0 295 is.mark(Integer.MAX_VALUE);
aoqi@0 296 int num;
aoqi@0 297 byte[] b = new byte[8192];
aoqi@0 298 while ((num = is.read(b)) != -1) {
aoqi@0 299 os.write(b, 0, num);
aoqi@0 300 }
aoqi@0 301 if (is.markSupported())
aoqi@0 302 is.reset();
aoqi@0 303 return;
aoqi@0 304 }
aoqi@0 305
aoqi@0 306 Reader reader = streamSource.getReader();
aoqi@0 307 if (reader != null) {
aoqi@0 308
aoqi@0 309 if (reader.markSupported())
aoqi@0 310 reader.mark(Integer.MAX_VALUE);
aoqi@0 311
aoqi@0 312 PushbackReader pushbackReader = new PushbackReader(reader, 4096);
aoqi@0 313 //some size to unread <?xml ....?>
aoqi@0 314 XMLDeclarationParser ev =
aoqi@0 315 new XMLDeclarationParser(pushbackReader);
aoqi@0 316 try {
aoqi@0 317 ev.parse();
aoqi@0 318 } catch (Exception ex) {
aoqi@0 319 throw new TransformerException(
aoqi@0 320 "Unable to run the JAXP transformer on a stream "
aoqi@0 321 + ex.getMessage());
aoqi@0 322 }
aoqi@0 323 Writer writer =
aoqi@0 324 new OutputStreamWriter(os /*, ev.getEncoding()*/);
aoqi@0 325 ev.writeTo(writer); // doesn't write any, if no header
aoqi@0 326
aoqi@0 327 int num;
aoqi@0 328 char[] ac = new char[8192];
aoqi@0 329 while ((num = pushbackReader.read(ac)) != -1) {
aoqi@0 330 writer.write(ac, 0, num);
aoqi@0 331 }
aoqi@0 332 writer.flush();
aoqi@0 333
aoqi@0 334 if (reader.markSupported())
aoqi@0 335 reader.reset();
aoqi@0 336 return;
aoqi@0 337 }
aoqi@0 338 } catch (IOException e) {
aoqi@0 339 e.printStackTrace();
aoqi@0 340 throw new TransformerException(e.toString());
aoqi@0 341 }
aoqi@0 342
aoqi@0 343 throw new TransformerException("Unexpected StreamSource object");
aoqi@0 344 }
aoqi@0 345 // FastInfosetSource -> DOMResult
aoqi@0 346 else if (FastInfosetReflection.isFastInfosetSource(source)
aoqi@0 347 && (result instanceof DOMResult))
aoqi@0 348 {
aoqi@0 349 try {
aoqi@0 350 // Use reflection to avoid a static dep with FI
aoqi@0 351 if (m_fiDOMDocumentParser == null) {
aoqi@0 352 m_fiDOMDocumentParser = FastInfosetReflection.DOMDocumentParser_new();
aoqi@0 353 }
aoqi@0 354
aoqi@0 355 // m_fiDOMDocumentParser.parse(document, source.getInputStream())
aoqi@0 356 FastInfosetReflection.DOMDocumentParser_parse(
aoqi@0 357 m_fiDOMDocumentParser,
aoqi@0 358 (Document) ((DOMResult) result).getNode(),
aoqi@0 359 FastInfosetReflection.FastInfosetSource_getInputStream(source));
aoqi@0 360
aoqi@0 361 // We're done!
aoqi@0 362 return;
aoqi@0 363 }
aoqi@0 364 catch (Exception e) {
aoqi@0 365 throw new TransformerException(e);
aoqi@0 366 }
aoqi@0 367 }
aoqi@0 368 // DOMSource -> FastInfosetResult
aoqi@0 369 else if ((source instanceof DOMSource)
aoqi@0 370 && FastInfosetReflection.isFastInfosetResult(result))
aoqi@0 371 {
aoqi@0 372 try {
aoqi@0 373 // Use reflection to avoid a static dep with FI
aoqi@0 374 if (m_fiDOMDocumentSerializer == null) {
aoqi@0 375 m_fiDOMDocumentSerializer = FastInfosetReflection.DOMDocumentSerializer_new();
aoqi@0 376 }
aoqi@0 377
aoqi@0 378 // m_fiDOMDocumentSerializer.setOutputStream(result.getOutputStream())
aoqi@0 379 FastInfosetReflection.DOMDocumentSerializer_setOutputStream(
aoqi@0 380 m_fiDOMDocumentSerializer,
aoqi@0 381 FastInfosetReflection.FastInfosetResult_getOutputStream(result));
aoqi@0 382
aoqi@0 383 // m_fiDOMDocumentSerializer.serialize(node)
aoqi@0 384 FastInfosetReflection.DOMDocumentSerializer_serialize(
aoqi@0 385 m_fiDOMDocumentSerializer,
aoqi@0 386 ((DOMSource) source).getNode());
aoqi@0 387
aoqi@0 388 // We're done!
aoqi@0 389 return;
aoqi@0 390 }
aoqi@0 391 catch (Exception e) {
aoqi@0 392 throw new TransformerException(e);
aoqi@0 393 }
aoqi@0 394 }
aoqi@0 395
aoqi@0 396 // All other cases -- use transformer object
aoqi@0 397
aoqi@0 398 materialize();
aoqi@0 399 m_realTransformer.transform(source, result);
aoqi@0 400 }
aoqi@0 401
aoqi@0 402 /**
aoqi@0 403 * Threadlocal to hold a Transformer instance for this thread.
aoqi@0 404 * CR : 6813167
aoqi@0 405 */
aoqi@0 406 //private static ThreadLocal effTransformer = new ThreadLocal();
aoqi@0 407
aoqi@0 408 /**
aoqi@0 409 * Return Transformer instance for this thread, allocating a new one if
aoqi@0 410 * necessary. Note that this method does not clear global parameters,
aoqi@0 411 * properties or any other data set on a previously used transformer.
aoqi@0 412 */
aoqi@0 413 public static Transformer newTransformer() {
aoqi@0 414 //CR : 6813167
aoqi@0 415 /*Transformer tt = (Transformer) effTransformer.get();
aoqi@0 416 if (tt == null) {
aoqi@0 417 effTransformer.set(tt = new EfficientStreamingTransformer());
aoqi@0 418 }
aoqi@0 419 return tt;*/
aoqi@0 420 return new EfficientStreamingTransformer();
aoqi@0 421 }
aoqi@0 422
aoqi@0 423 }

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