1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/util/transform/EfficientStreamingTransformer.java Tue Mar 06 16:09:35 2012 -0800 1.3 @@ -0,0 +1,423 @@ 1.4 +/* 1.5 + * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. Oracle designates this 1.11 + * particular file as subject to the "Classpath" exception as provided 1.12 + * by Oracle in the LICENSE file that accompanied this code. 1.13 + * 1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.17 + * version 2 for more details (a copy is included in the LICENSE file that 1.18 + * accompanied this code). 1.19 + * 1.20 + * You should have received a copy of the GNU General Public License version 1.21 + * 2 along with this work; if not, write to the Free Software Foundation, 1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.23 + * 1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 1.25 + * or visit www.oracle.com if you need additional information or have any 1.26 + * questions. 1.27 + */ 1.28 + 1.29 +/* 1.30 + * EfficientStreamingTransformer.java 1.31 + * 1.32 + * Created on July 29, 2002, 3:49 PM 1.33 + */ 1.34 + 1.35 +package com.sun.xml.internal.messaging.saaj.util.transform; 1.36 + 1.37 +import java.io.*; 1.38 + 1.39 +import java.net.URISyntaxException; 1.40 +import javax.xml.transform.dom.DOMSource; 1.41 +import javax.xml.transform.dom.DOMResult; 1.42 +import javax.xml.transform.stream.StreamResult; 1.43 +import javax.xml.transform.stream.StreamSource; 1.44 + 1.45 +import org.w3c.dom.Document; 1.46 + 1.47 +import com.sun.xml.internal.messaging.saaj.util.XMLDeclarationParser; 1.48 +import com.sun.xml.internal.messaging.saaj.util.FastInfosetReflection; 1.49 +import java.net.URI; 1.50 +import javax.xml.transform.Transformer; 1.51 +import javax.xml.transform.TransformerException; 1.52 +import javax.xml.transform.TransformerFactory; 1.53 + 1.54 +/** 1.55 + * This class is a proxy for a Transformer object with optimizations 1.56 + * for certain cases. If source and result are of type stream, then 1.57 + * bytes are simply copied whenever possible (note that this assumes 1.58 + * that the input is well formed). In addition, it provides support for 1.59 + * FI using native DOM parsers and serializers. 1.60 + * 1.61 + * @author Panos Kougiouris panos@acm.org 1.62 + * @author Santiago.PericasGeertsen@sun.com 1.63 + * 1.64 + */ 1.65 +public class EfficientStreamingTransformer 1.66 + extends javax.xml.transform.Transformer { 1.67 + 1.68 + //static final String version; 1.69 + //static final String vendor; 1.70 + // removing static : security issue : CR 6813167Z 1.71 + private final TransformerFactory transformerFactory = TransformerFactory.newInstance(); 1.72 + 1.73 + /** 1.74 + removing support for Java 1.4 and 1.3 : CR6658158 1.75 + static { 1.76 + version = System.getProperty("java.vm.version"); 1.77 + vendor = System.getProperty("java.vm.vendor"); 1.78 + if (vendor.startsWith("Sun") && 1.79 + (version.startsWith("1.4") || version.startsWith("1.3"))) { 1.80 + transformerFactory = 1.81 + new com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl(); 1.82 + } 1.83 + }*/ 1.84 + 1.85 + /** 1.86 + * TransformerFactory instance. 1.87 + */ 1.88 + 1.89 + /** 1.90 + * Underlying XSLT transformer. 1.91 + */ 1.92 + private Transformer m_realTransformer = null; 1.93 + 1.94 + /** 1.95 + * Undelying FI DOM parser. 1.96 + */ 1.97 + private Object m_fiDOMDocumentParser = null; 1.98 + 1.99 + /** 1.100 + * Underlying FI DOM serializer. 1.101 + */ 1.102 + private Object m_fiDOMDocumentSerializer = null; 1.103 + 1.104 + private EfficientStreamingTransformer() { 1.105 + } 1.106 + 1.107 + private void materialize() throws TransformerException { 1.108 + if (m_realTransformer == null) { 1.109 + m_realTransformer = transformerFactory.newTransformer(); 1.110 + } 1.111 + } 1.112 + 1.113 + public void clearParameters() { 1.114 + if (m_realTransformer != null) 1.115 + m_realTransformer.clearParameters(); 1.116 + } 1.117 + 1.118 + public javax.xml.transform.ErrorListener getErrorListener() { 1.119 + try { 1.120 + materialize(); 1.121 + return m_realTransformer.getErrorListener(); 1.122 + } catch (TransformerException e) { 1.123 + // will be caught later 1.124 + } 1.125 + return null; 1.126 + } 1.127 + 1.128 + public java.util.Properties getOutputProperties() { 1.129 + try { 1.130 + materialize(); 1.131 + return m_realTransformer.getOutputProperties(); 1.132 + } catch (TransformerException e) { 1.133 + // will be caught later 1.134 + } 1.135 + return null; 1.136 + } 1.137 + 1.138 + public String getOutputProperty(String str) 1.139 + throws java.lang.IllegalArgumentException { 1.140 + try { 1.141 + materialize(); 1.142 + return m_realTransformer.getOutputProperty(str); 1.143 + } catch (TransformerException e) { 1.144 + // will be caught later 1.145 + } 1.146 + return null; 1.147 + } 1.148 + 1.149 + public Object getParameter(String str) { 1.150 + try { 1.151 + materialize(); 1.152 + return m_realTransformer.getParameter(str); 1.153 + } catch (TransformerException e) { 1.154 + // will be caught later 1.155 + } 1.156 + return null; 1.157 + } 1.158 + 1.159 + public javax.xml.transform.URIResolver getURIResolver() { 1.160 + try { 1.161 + materialize(); 1.162 + return m_realTransformer.getURIResolver(); 1.163 + } catch (TransformerException e) { 1.164 + // will be caught later 1.165 + } 1.166 + return null; 1.167 + } 1.168 + 1.169 + public void setErrorListener( 1.170 + javax.xml.transform.ErrorListener errorListener) 1.171 + throws java.lang.IllegalArgumentException { 1.172 + try { 1.173 + materialize(); 1.174 + m_realTransformer.setErrorListener(errorListener); 1.175 + } catch (TransformerException e) { 1.176 + // will be caught later 1.177 + } 1.178 + } 1.179 + 1.180 + public void setOutputProperties(java.util.Properties properties) 1.181 + throws java.lang.IllegalArgumentException { 1.182 + try { 1.183 + materialize(); 1.184 + m_realTransformer.setOutputProperties(properties); 1.185 + } catch (TransformerException e) { 1.186 + // will be caught later 1.187 + } 1.188 + } 1.189 + 1.190 + public void setOutputProperty(String str, String str1) 1.191 + throws java.lang.IllegalArgumentException { 1.192 + try { 1.193 + materialize(); 1.194 + m_realTransformer.setOutputProperty(str, str1); 1.195 + } catch (TransformerException e) { 1.196 + // will be caught later 1.197 + } 1.198 + } 1.199 + 1.200 + public void setParameter(String str, Object obj) { 1.201 + try { 1.202 + materialize(); 1.203 + m_realTransformer.setParameter(str, obj); 1.204 + } catch (TransformerException e) { 1.205 + // will be caught later 1.206 + } 1.207 + } 1.208 + 1.209 + public void setURIResolver(javax.xml.transform.URIResolver uRIResolver) { 1.210 + try { 1.211 + materialize(); 1.212 + m_realTransformer.setURIResolver(uRIResolver); 1.213 + } catch (TransformerException e) { 1.214 + // will be caught later 1.215 + } 1.216 + } 1.217 + 1.218 + private InputStream getInputStreamFromSource(StreamSource s) 1.219 + throws TransformerException { 1.220 + 1.221 + InputStream stream = s.getInputStream(); 1.222 + if (stream != null) 1.223 + return stream; 1.224 + 1.225 + if (s.getReader() != null) 1.226 + return null; 1.227 + 1.228 + String systemId = s.getSystemId(); 1.229 + if (systemId != null) { 1.230 + try { 1.231 + String fileURL = systemId; 1.232 + 1.233 + if (systemId.startsWith("file:///")) 1.234 + { 1.235 + /* 1.236 + systemId is: 1.237 + file:///<drive>:/some/path/file.xml 1.238 + or 1.239 + file:///some/path/file.xml 1.240 + */ 1.241 + 1.242 + String absolutePath = systemId.substring(7); 1.243 + /* 1.244 + /<drive>:/some/path/file.xml 1.245 + or 1.246 + /some/path/file.xml 1.247 + */ 1.248 + 1.249 + boolean hasDriveDesignator = absolutePath.indexOf(":") > 0; 1.250 + if (hasDriveDesignator) { 1.251 + String driveDesignatedPath = absolutePath.substring(1); 1.252 + /* 1.253 + <drive>:/some/path/file.xml */ 1.254 + fileURL = driveDesignatedPath; 1.255 + } 1.256 + else { 1.257 + /* 1.258 + /some/path/file.xml */ 1.259 + fileURL = absolutePath; 1.260 + } 1.261 + } 1.262 + //return new FileInputStream(fileURL); 1.263 + try { 1.264 + return new FileInputStream(new File(new URI(fileURL))); 1.265 + } catch (URISyntaxException ex) { 1.266 + throw new TransformerException(ex); 1.267 + } 1.268 + } catch (IOException e) { 1.269 + throw new TransformerException(e.toString()); 1.270 + } 1.271 + } 1.272 + 1.273 + throw new TransformerException("Unexpected StreamSource object"); 1.274 + } 1.275 + 1.276 + //------------------------------------------------------------------------ 1.277 + 1.278 + public void transform( 1.279 + javax.xml.transform.Source source, 1.280 + javax.xml.transform.Result result) 1.281 + throws javax.xml.transform.TransformerException 1.282 + { 1.283 + // StreamSource -> StreamResult 1.284 + if ((source instanceof StreamSource) 1.285 + && (result instanceof StreamResult)) { 1.286 + try { 1.287 + StreamSource streamSource = (StreamSource) source; 1.288 + InputStream is = getInputStreamFromSource(streamSource); 1.289 + 1.290 + OutputStream os = ((StreamResult) result).getOutputStream(); 1.291 + if (os == null) 1.292 + // TODO: We might want to fix this if it were to be used beyond 1.293 + // XmlDataContentHandler that we know uses only OutputStream 1.294 + throw new TransformerException("Unexpected StreamResult object contains null OutputStream"); 1.295 + 1.296 + if (is != null) { 1.297 + if (is.markSupported()) 1.298 + is.mark(Integer.MAX_VALUE); 1.299 + int num; 1.300 + byte[] b = new byte[8192]; 1.301 + while ((num = is.read(b)) != -1) { 1.302 + os.write(b, 0, num); 1.303 + } 1.304 + if (is.markSupported()) 1.305 + is.reset(); 1.306 + return; 1.307 + } 1.308 + 1.309 + Reader reader = streamSource.getReader(); 1.310 + if (reader != null) { 1.311 + 1.312 + if (reader.markSupported()) 1.313 + reader.mark(Integer.MAX_VALUE); 1.314 + 1.315 + PushbackReader pushbackReader = new PushbackReader(reader, 4096); 1.316 + //some size to unread <?xml ....?> 1.317 + XMLDeclarationParser ev = 1.318 + new XMLDeclarationParser(pushbackReader); 1.319 + try { 1.320 + ev.parse(); 1.321 + } catch (Exception ex) { 1.322 + throw new TransformerException( 1.323 + "Unable to run the JAXP transformer on a stream " 1.324 + + ex.getMessage()); 1.325 + } 1.326 + Writer writer = 1.327 + new OutputStreamWriter(os /*, ev.getEncoding()*/); 1.328 + ev.writeTo(writer); // doesn't write any, if no header 1.329 + 1.330 + int num; 1.331 + char[] ac = new char[8192]; 1.332 + while ((num = pushbackReader.read(ac)) != -1) { 1.333 + writer.write(ac, 0, num); 1.334 + } 1.335 + writer.flush(); 1.336 + 1.337 + if (reader.markSupported()) 1.338 + reader.reset(); 1.339 + return; 1.340 + } 1.341 + } catch (IOException e) { 1.342 + e.printStackTrace(); 1.343 + throw new TransformerException(e.toString()); 1.344 + } 1.345 + 1.346 + throw new TransformerException("Unexpected StreamSource object"); 1.347 + } 1.348 + // FastInfosetSource -> DOMResult 1.349 + else if (FastInfosetReflection.isFastInfosetSource(source) 1.350 + && (result instanceof DOMResult)) 1.351 + { 1.352 + try { 1.353 + // Use reflection to avoid a static dep with FI 1.354 + if (m_fiDOMDocumentParser == null) { 1.355 + m_fiDOMDocumentParser = FastInfosetReflection.DOMDocumentParser_new(); 1.356 + } 1.357 + 1.358 + // m_fiDOMDocumentParser.parse(document, source.getInputStream()) 1.359 + FastInfosetReflection.DOMDocumentParser_parse( 1.360 + m_fiDOMDocumentParser, 1.361 + (Document) ((DOMResult) result).getNode(), 1.362 + FastInfosetReflection.FastInfosetSource_getInputStream(source)); 1.363 + 1.364 + // We're done! 1.365 + return; 1.366 + } 1.367 + catch (Exception e) { 1.368 + throw new TransformerException(e); 1.369 + } 1.370 + } 1.371 + // DOMSource -> FastInfosetResult 1.372 + else if ((source instanceof DOMSource) 1.373 + && FastInfosetReflection.isFastInfosetResult(result)) 1.374 + { 1.375 + try { 1.376 + // Use reflection to avoid a static dep with FI 1.377 + if (m_fiDOMDocumentSerializer == null) { 1.378 + m_fiDOMDocumentSerializer = FastInfosetReflection.DOMDocumentSerializer_new(); 1.379 + } 1.380 + 1.381 + // m_fiDOMDocumentSerializer.setOutputStream(result.getOutputStream()) 1.382 + FastInfosetReflection.DOMDocumentSerializer_setOutputStream( 1.383 + m_fiDOMDocumentSerializer, 1.384 + FastInfosetReflection.FastInfosetResult_getOutputStream(result)); 1.385 + 1.386 + // m_fiDOMDocumentSerializer.serialize(node) 1.387 + FastInfosetReflection.DOMDocumentSerializer_serialize( 1.388 + m_fiDOMDocumentSerializer, 1.389 + ((DOMSource) source).getNode()); 1.390 + 1.391 + // We're done! 1.392 + return; 1.393 + } 1.394 + catch (Exception e) { 1.395 + throw new TransformerException(e); 1.396 + } 1.397 + } 1.398 + 1.399 + // All other cases -- use transformer object 1.400 + 1.401 + materialize(); 1.402 + m_realTransformer.transform(source, result); 1.403 + } 1.404 + 1.405 + /** 1.406 + * Threadlocal to hold a Transformer instance for this thread. 1.407 + * CR : 6813167 1.408 + */ 1.409 + //private static ThreadLocal effTransformer = new ThreadLocal(); 1.410 + 1.411 + /** 1.412 + * Return Transformer instance for this thread, allocating a new one if 1.413 + * necessary. Note that this method does not clear global parameters, 1.414 + * properties or any other data set on a previously used transformer. 1.415 + */ 1.416 + public static Transformer newTransformer() { 1.417 + //CR : 6813167 1.418 + /*Transformer tt = (Transformer) effTransformer.get(); 1.419 + if (tt == null) { 1.420 + effTransformer.set(tt = new EfficientStreamingTransformer()); 1.421 + } 1.422 + return tt;*/ 1.423 + return new EfficientStreamingTransformer(); 1.424 + } 1.425 + 1.426 +}