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

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

author
aoqi
date
Thu, 31 Aug 2017 15:18:52 +0800
changeset 637
9c07ef4934dd
parent 514
29a761eaff0d
parent 0
373ffda63c9a
child 1546
dc8316632248
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1997, 2014, 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 package com.sun.xml.internal.bind.v2.runtime.output;
aoqi@0 27
aoqi@0 28 import java.io.IOException;
aoqi@0 29 import java.lang.reflect.Constructor;
aoqi@0 30
aoqi@0 31 import javax.xml.stream.XMLStreamException;
aoqi@0 32 import javax.xml.stream.XMLStreamWriter;
aoqi@0 33
aoqi@0 34 import com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl;
aoqi@0 35 import com.sun.xml.internal.bind.v2.runtime.XMLSerializer;
aoqi@0 36
aoqi@0 37 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl;
aoqi@0 38 import org.xml.sax.SAXException;
aoqi@0 39
aoqi@0 40 /**
aoqi@0 41 * {@link XmlOutput} that writes to StAX {@link XMLStreamWriter}.
aoqi@0 42 * <p>
aoqi@0 43 * TODO:
aoqi@0 44 * Finding the optimized FI implementations is a bit hacky and not very
aoqi@0 45 * extensible. Can we use the service provider mechanism in general for
aoqi@0 46 * concrete implementations of XmlOutputAbstractImpl.
aoqi@0 47 *
aoqi@0 48 * @author Kohsuke Kawaguchi
aoqi@0 49 */
aoqi@0 50 public class XMLStreamWriterOutput extends XmlOutputAbstractImpl {
aoqi@0 51
aoqi@0 52 /**
aoqi@0 53 * Creates a new {@link XmlOutput} from a {@link XMLStreamWriter}.
aoqi@0 54 * This method recognizes an FI StAX writer.
aoqi@0 55 */
aoqi@0 56 public static XmlOutput create(XMLStreamWriter out, JAXBContextImpl context) {
aoqi@0 57 // try optimized path
aoqi@0 58 final Class writerClass = out.getClass();
aoqi@0 59 if (writerClass==FI_STAX_WRITER_CLASS) {
aoqi@0 60 try {
aoqi@0 61 return FI_OUTPUT_CTOR.newInstance(out, context);
aoqi@0 62 } catch (Exception e) {
aoqi@0 63 }
aoqi@0 64 }
aoqi@0 65 if (STAXEX_WRITER_CLASS!=null && STAXEX_WRITER_CLASS.isAssignableFrom(writerClass)) {
aoqi@0 66 try {
aoqi@0 67 return STAXEX_OUTPUT_CTOR.newInstance(out);
aoqi@0 68 } catch (Exception e) {
aoqi@0 69 }
aoqi@0 70 }
aoqi@0 71
aoqi@0 72 // otherwise the normal writer.
aoqi@0 73 return new XMLStreamWriterOutput(out);
aoqi@0 74 }
aoqi@0 75
aoqi@0 76
aoqi@0 77 private final XMLStreamWriter out;
aoqi@0 78
aoqi@0 79 protected final char[] buf = new char[256];
aoqi@0 80
aoqi@0 81 protected XMLStreamWriterOutput(XMLStreamWriter out) {
aoqi@0 82 this.out = out;
aoqi@0 83 }
aoqi@0 84
aoqi@0 85 // not called if we are generating fragments
aoqi@0 86 @Override
aoqi@0 87 public void startDocument(XMLSerializer serializer, boolean fragment, int[] nsUriIndex2prefixIndex, NamespaceContextImpl nsContext) throws IOException, SAXException, XMLStreamException {
aoqi@0 88 super.startDocument(serializer, fragment,nsUriIndex2prefixIndex,nsContext);
aoqi@0 89 if(!fragment)
aoqi@0 90 out.writeStartDocument();
aoqi@0 91 }
aoqi@0 92
aoqi@0 93 @Override
aoqi@0 94 public void endDocument(boolean fragment) throws IOException, SAXException, XMLStreamException {
aoqi@0 95 if(!fragment) {
aoqi@0 96 out.writeEndDocument();
aoqi@0 97 out.flush();
aoqi@0 98 }
aoqi@0 99 super.endDocument(fragment);
aoqi@0 100 }
aoqi@0 101
aoqi@0 102 public void beginStartTag(int prefix, String localName) throws IOException, XMLStreamException {
aoqi@0 103 out.writeStartElement(
aoqi@0 104 nsContext.getPrefix(prefix),
aoqi@0 105 localName,
aoqi@0 106 nsContext.getNamespaceURI(prefix));
aoqi@0 107
aoqi@0 108 NamespaceContextImpl.Element nse = nsContext.getCurrent();
aoqi@0 109 if(nse.count()>0) {
aoqi@0 110 for( int i=nse.count()-1; i>=0; i-- ) {
aoqi@0 111 String uri = nse.getNsUri(i);
aoqi@0 112 if(uri.length()==0 && nse.getBase()==1)
aoqi@0 113 continue; // no point in definint xmlns='' on the root
aoqi@0 114 out.writeNamespace(nse.getPrefix(i),uri);
aoqi@0 115 }
aoqi@0 116 }
aoqi@0 117 }
aoqi@0 118
aoqi@0 119 public void attribute(int prefix, String localName, String value) throws IOException, XMLStreamException {
aoqi@0 120 if(prefix==-1)
aoqi@0 121 out.writeAttribute(localName,value);
aoqi@0 122 else
aoqi@0 123 out.writeAttribute(
aoqi@0 124 nsContext.getPrefix(prefix),
aoqi@0 125 nsContext.getNamespaceURI(prefix),
aoqi@0 126 localName, value);
aoqi@0 127 }
aoqi@0 128
aoqi@0 129 public void endStartTag() throws IOException, SAXException {
aoqi@0 130 // noop
aoqi@0 131 }
aoqi@0 132
aoqi@0 133 public void endTag(int prefix, String localName) throws IOException, SAXException, XMLStreamException {
aoqi@0 134 out.writeEndElement();
aoqi@0 135 }
aoqi@0 136
aoqi@0 137 public void text(String value, boolean needsSeparatingWhitespace) throws IOException, SAXException, XMLStreamException {
aoqi@0 138 if(needsSeparatingWhitespace)
aoqi@0 139 out.writeCharacters(" ");
aoqi@0 140 out.writeCharacters(value);
aoqi@0 141 }
aoqi@0 142
aoqi@0 143 public void text(Pcdata value, boolean needsSeparatingWhitespace) throws IOException, SAXException, XMLStreamException {
aoqi@0 144 if(needsSeparatingWhitespace)
aoqi@0 145 out.writeCharacters(" ");
aoqi@0 146
aoqi@0 147 int len = value.length();
aoqi@0 148 if(len <buf.length) {
aoqi@0 149 value.writeTo(buf,0);
aoqi@0 150 out.writeCharacters(buf,0,len);
aoqi@0 151 } else {
aoqi@0 152 out.writeCharacters(value.toString());
aoqi@0 153 }
aoqi@0 154 }
aoqi@0 155
aoqi@0 156 /**
aoqi@0 157 * Reference to FI's XMLStreamWriter class, if FI can be loaded.
aoqi@0 158 */
aoqi@0 159 private static final Class FI_STAX_WRITER_CLASS = initFIStAXWriterClass();
aoqi@0 160 private static final Constructor<? extends XmlOutput> FI_OUTPUT_CTOR = initFastInfosetOutputClass();
aoqi@0 161
aoqi@0 162 private static Class initFIStAXWriterClass() {
aoqi@0 163 try {
aoqi@0 164 Class<?> llfisw = Class.forName("com.sun.xml.internal.org.jvnet.fastinfoset.stax.LowLevelFastInfosetStreamWriter");
aoqi@0 165 Class<?> sds = Class.forName("com.sun.xml.internal.fastinfoset.stax.StAXDocumentSerializer");
aoqi@0 166 // Check if StAXDocumentSerializer implements LowLevelFastInfosetStreamWriter
aoqi@0 167 if (llfisw.isAssignableFrom(sds))
aoqi@0 168 return sds;
aoqi@0 169 else
aoqi@0 170 return null;
aoqi@0 171 } catch (Throwable e) {
aoqi@0 172 return null;
aoqi@0 173 }
aoqi@0 174 }
aoqi@0 175
aoqi@0 176 private static Constructor<? extends XmlOutput> initFastInfosetOutputClass() {
aoqi@0 177 try {
aoqi@0 178 if (FI_STAX_WRITER_CLASS == null)
aoqi@0 179 return null;
aoqi@0 180 Class c = Class.forName("com.sun.xml.internal.bind.v2.runtime.output.FastInfosetStreamWriterOutput");
aoqi@0 181 return c.getConstructor(FI_STAX_WRITER_CLASS, JAXBContextImpl.class);
aoqi@0 182 } catch (Throwable e) {
aoqi@0 183 return null;
aoqi@0 184 }
aoqi@0 185 }
aoqi@0 186
aoqi@0 187 //
aoqi@0 188 // StAX-ex
aoqi@0 189 //
aoqi@0 190 private static final Class STAXEX_WRITER_CLASS = initStAXExWriterClass();
aoqi@0 191 private static final Constructor<? extends XmlOutput> STAXEX_OUTPUT_CTOR = initStAXExOutputClass();
aoqi@0 192
aoqi@0 193 private static Class initStAXExWriterClass() {
aoqi@0 194 try {
aoqi@0 195 return Class.forName("com.sun.xml.internal.org.jvnet.staxex.XMLStreamWriterEx");
aoqi@0 196 } catch (Throwable e) {
aoqi@0 197 return null;
aoqi@0 198 }
aoqi@0 199 }
aoqi@0 200
aoqi@0 201 private static Constructor<? extends XmlOutput> initStAXExOutputClass() {
aoqi@0 202 try {
aoqi@0 203 Class c = Class.forName("com.sun.xml.internal.bind.v2.runtime.output.StAXExStreamWriterOutput");
aoqi@0 204 return c.getConstructor(STAXEX_WRITER_CLASS);
aoqi@0 205 } catch (Throwable e) {
aoqi@0 206 return null;
aoqi@0 207 }
aoqi@0 208 }
aoqi@0 209
aoqi@0 210 }

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