jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/output/XMLStreamWriterOutput.java@29a761eaff0d (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/output/XMLStreamWriterOutput.java@29a761eaff0d (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/output/XMLStreamWriterOutput.java

Fri, 14 Feb 2014 10:53:55 +0100

author: mkos
date: Fri, 14 Feb 2014 10:53:55 +0100
changeset 514: 29a761eaff0d
parent 286: f50545b5e2f1
child 637: 9c07ef4934dd
child 1443: dffc222439a1
permissions: -rw-r--r--

8025030: Enhance stream handling
Summary: Avoiding caching data initialized via TCCL in static context; fix also reviewed by Iaroslav Savytskyi, Alexander Fomin
Reviewed-by: ahgross, mgrebac, skoivu

 /*
  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package com.sun.xml.internal.bind.v2.runtime.output;
 import java.io.IOException;
 import java.lang.reflect.Constructor;
 import javax.xml.stream.XMLStreamException;
 import javax.xml.stream.XMLStreamWriter;
 import com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl;
 import com.sun.xml.internal.bind.v2.runtime.XMLSerializer;
 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl;
 import org.xml.sax.SAXException;
 /**
  * {@link XmlOutput} that writes to StAX {@link XMLStreamWriter}.
  * <p>
  * TODO:
  * Finding the optimized FI implementations is a bit hacky and not very
  * extensible. Can we use the service provider mechanism in general for
  * concrete implementations of XmlOutputAbstractImpl.
  *
  * @author Kohsuke Kawaguchi
  */
 public class XMLStreamWriterOutput extends XmlOutputAbstractImpl {
     /**
      * Creates a new {@link XmlOutput} from a {@link XMLStreamWriter}.
      * This method recognizes an FI StAX writer.
      */
     public static XmlOutput create(XMLStreamWriter out, JAXBContextImpl context) {
         // try optimized path
         final Class writerClass = out.getClass();
         if (writerClass==FI_STAX_WRITER_CLASS) {
             try {
                 return FI_OUTPUT_CTOR.newInstance(out, context);
             } catch (Exception e) {
             }
         }
         if (STAXEX_WRITER_CLASS!=null && STAXEX_WRITER_CLASS.isAssignableFrom(writerClass)) {
             try {
                 return STAXEX_OUTPUT_CTOR.newInstance(out);
             } catch (Exception e) {
             }
         }
         // otherwise the normal writer.
         return new XMLStreamWriterOutput(out);
     }
     private final XMLStreamWriter out;
     protected final char[] buf = new char[256];
     protected XMLStreamWriterOutput(XMLStreamWriter out) {
         this.out = out;
     }
     // not called if we are generating fragments
     @Override
     public void startDocument(XMLSerializer serializer, boolean fragment, int[] nsUriIndex2prefixIndex, NamespaceContextImpl nsContext) throws IOException, SAXException, XMLStreamException {
         super.startDocument(serializer, fragment,nsUriIndex2prefixIndex,nsContext);
         if(!fragment)
             out.writeStartDocument();
     }
     @Override
     public void endDocument(boolean fragment) throws IOException, SAXException, XMLStreamException {
         if(!fragment) {
             out.writeEndDocument();
             out.flush();
         }
         super.endDocument(fragment);
     }
     public void beginStartTag(int prefix, String localName) throws IOException, XMLStreamException {
         out.writeStartElement(
             nsContext.getPrefix(prefix),
             localName,
             nsContext.getNamespaceURI(prefix));
         NamespaceContextImpl.Element nse = nsContext.getCurrent();
         if(nse.count()>0) {
             for( int i=nse.count()-1; i>=0; i-- ) {
                 String uri = nse.getNsUri(i);
                 if(uri.length()==0 && nse.getBase()==1)
                     continue;   // no point in definint xmlns='' on the root
                 out.writeNamespace(nse.getPrefix(i),uri);
             }
         }
     }
     public void attribute(int prefix, String localName, String value) throws IOException, XMLStreamException {
         if(prefix==-1)
             out.writeAttribute(localName,value);
         else
             out.writeAttribute(
                     nsContext.getPrefix(prefix),
                     nsContext.getNamespaceURI(prefix),
                     localName, value);
     }
     public void endStartTag() throws IOException, SAXException {
         // noop
     }
     public void endTag(int prefix, String localName) throws IOException, SAXException, XMLStreamException {
         out.writeEndElement();
     }
     public void text(String value, boolean needsSeparatingWhitespace) throws IOException, SAXException, XMLStreamException {
         if(needsSeparatingWhitespace)
             out.writeCharacters(" ");
         out.writeCharacters(value);
     }
     public void text(Pcdata value, boolean needsSeparatingWhitespace) throws IOException, SAXException, XMLStreamException {
         if(needsSeparatingWhitespace)
             out.writeCharacters(" ");
         int len = value.length();
         if(len <buf.length) {
             value.writeTo(buf,0);
             out.writeCharacters(buf,0,len);
         } else {
             out.writeCharacters(value.toString());
         }
     }
     /**
      * Reference to FI's XMLStreamWriter class, if FI can be loaded.
      */
     private static final Class FI_STAX_WRITER_CLASS = initFIStAXWriterClass();
     private static final Constructor<? extends XmlOutput> FI_OUTPUT_CTOR = initFastInfosetOutputClass();
     private static Class initFIStAXWriterClass() {
         try {
             Class<?> llfisw = Class.forName("com.sun.xml.internal.org.jvnet.fastinfoset.stax.LowLevelFastInfosetStreamWriter");
             Class<?> sds = Class.forName("com.sun.xml.internal.fastinfoset.stax.StAXDocumentSerializer");
             // Check if StAXDocumentSerializer implements LowLevelFastInfosetStreamWriter
             if (llfisw.isAssignableFrom(sds))
                 return sds;
             else
                 return null;
         } catch (Throwable e) {
             return null;
         }
     }
     private static Constructor<? extends XmlOutput> initFastInfosetOutputClass() {
         try {
             if (FI_STAX_WRITER_CLASS == null)
                 return null;
             Class c = Class.forName("com.sun.xml.internal.bind.v2.runtime.output.FastInfosetStreamWriterOutput");
             return c.getConstructor(FI_STAX_WRITER_CLASS, JAXBContextImpl.class);
         } catch (Throwable e) {
             return null;
         }
     }
     //
     // StAX-ex
     //
     private static final Class STAXEX_WRITER_CLASS = initStAXExWriterClass();
     private static final Constructor<? extends XmlOutput> STAXEX_OUTPUT_CTOR = initStAXExOutputClass();
     private static Class initStAXExWriterClass() {
         try {
             return Class.forName("com.sun.xml.internal.org.jvnet.staxex.XMLStreamWriterEx");
         } catch (Throwable e) {
             return null;
         }
     }
     private static Constructor<? extends XmlOutput> initStAXExOutputClass() {
         try {
             Class c = Class.forName("com.sun.xml.internal.bind.v2.runtime.output.StAXExStreamWriterOutput");
             return c.getConstructor(STAXEX_WRITER_CLASS);
         } catch (Throwable e) {
             return null;
         }
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/output/XMLStreamWriterOutput.java@29a761eaff0d (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/output/XMLStreamWriterOutput.java