1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/FastInfosetConnector.java Wed Apr 27 01:27:09 2016 +0800
1.3 @@ -0,0 +1,294 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2011, 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 +package com.sun.xml.internal.bind.v2.runtime.unmarshaller;
1.30 +
1.31 +import javax.xml.stream.Location;
1.32 +import javax.xml.stream.XMLStreamConstants;
1.33 +import javax.xml.stream.XMLStreamException;
1.34 +
1.35 +import com.sun.xml.internal.bind.WhiteSpaceProcessor;
1.36 +import com.sun.xml.internal.fastinfoset.stax.StAXDocumentParser;
1.37 +import com.sun.xml.internal.org.jvnet.fastinfoset.EncodingAlgorithmIndexes;
1.38 +import org.xml.sax.SAXException;
1.39 +
1.40 +/**
1.41 + * Reads from FastInfoset StAX parser and feeds into JAXB Unmarshaller.
1.42 + * <p>
1.43 + * This class will peek at future events to ascertain if characters need to be
1.44 + * buffered or not.
1.45 + *
1.46 + * @author Paul Sandoz.
1.47 + */
1.48 +final class FastInfosetConnector extends StAXConnector {
1.49 +
1.50 + // event source
1.51 + private final StAXDocumentParser fastInfosetStreamReader;
1.52 +
1.53 + // Flag set to true if text has been reported
1.54 + private boolean textReported;
1.55 +
1.56 + // Buffer for octets
1.57 + private final Base64Data base64Data = new Base64Data();
1.58 +
1.59 + // Buffer for characters
1.60 + private final StringBuilder buffer = new StringBuilder();
1.61 +
1.62 + public FastInfosetConnector(StAXDocumentParser fastInfosetStreamReader,
1.63 + XmlVisitor visitor) {
1.64 + super(visitor);
1.65 + fastInfosetStreamReader.setStringInterning(true);
1.66 + this.fastInfosetStreamReader = fastInfosetStreamReader;
1.67 + }
1.68 +
1.69 + public void bridge() throws XMLStreamException {
1.70 + try {
1.71 + // remembers the nest level of elements to know when we are done.
1.72 + int depth=0;
1.73 +
1.74 + // if the parser is at the start tag, proceed to the first element
1.75 + int event = fastInfosetStreamReader.getEventType();
1.76 + if(event == XMLStreamConstants.START_DOCUMENT) {
1.77 + // nextTag doesn't correctly handle DTDs
1.78 + while( !fastInfosetStreamReader.isStartElement() )
1.79 + event = fastInfosetStreamReader.next();
1.80 + }
1.81 +
1.82 +
1.83 + if( event!=XMLStreamConstants.START_ELEMENT)
1.84 + throw new IllegalStateException("The current event is not START_ELEMENT\n but " + event);
1.85 +
1.86 + // TODO: we don't have to rely on this hack --- we can just emulate
1.87 + // start/end prefix mappings. But for now, I'll rely on this hack.
1.88 + handleStartDocument(fastInfosetStreamReader.getNamespaceContext());
1.89 +
1.90 + OUTER:
1.91 + while(true) {
1.92 + // These are all of the events listed in the javadoc for
1.93 + // XMLEvent.
1.94 + // The spec only really describes 11 of them.
1.95 + switch (event) {
1.96 + case XMLStreamConstants.START_ELEMENT :
1.97 + handleStartElement();
1.98 + depth++;
1.99 + break;
1.100 + case XMLStreamConstants.END_ELEMENT :
1.101 + depth--;
1.102 + handleEndElement();
1.103 + if(depth==0) break OUTER;
1.104 + break;
1.105 + case XMLStreamConstants.CHARACTERS :
1.106 + case XMLStreamConstants.CDATA :
1.107 + case XMLStreamConstants.SPACE :
1.108 + if (predictor.expectText()) {
1.109 + // Peek at the next event to see if there are
1.110 + // fragmented characters
1.111 + event = fastInfosetStreamReader.peekNext();
1.112 + if (event == XMLStreamConstants.END_ELEMENT)
1.113 + processNonIgnorableText();
1.114 + else if (event == XMLStreamConstants.START_ELEMENT)
1.115 + processIgnorableText();
1.116 + else
1.117 + handleFragmentedCharacters();
1.118 + }
1.119 + break;
1.120 + // otherwise simply ignore
1.121 + }
1.122 +
1.123 + event=fastInfosetStreamReader.next();
1.124 + }
1.125 +
1.126 + fastInfosetStreamReader.next(); // move beyond the end tag.
1.127 +
1.128 + handleEndDocument();
1.129 + } catch (SAXException e) {
1.130 + throw new XMLStreamException(e);
1.131 + }
1.132 + }
1.133 +
1.134 + protected Location getCurrentLocation() {
1.135 + return fastInfosetStreamReader.getLocation();
1.136 + }
1.137 +
1.138 + protected String getCurrentQName() {
1.139 + return fastInfosetStreamReader.getNameString();
1.140 + }
1.141 +
1.142 + private void handleStartElement() throws SAXException {
1.143 + processUnreportedText();
1.144 +
1.145 + for (int i = 0; i < fastInfosetStreamReader.accessNamespaceCount(); i++) {
1.146 + visitor.startPrefixMapping(fastInfosetStreamReader.getNamespacePrefix(i),
1.147 + fastInfosetStreamReader.getNamespaceURI(i));
1.148 + }
1.149 +
1.150 + tagName.uri = fastInfosetStreamReader.accessNamespaceURI();
1.151 + tagName.local = fastInfosetStreamReader.accessLocalName();
1.152 + tagName.atts = fastInfosetStreamReader.getAttributesHolder();
1.153 +
1.154 + visitor.startElement(tagName);
1.155 + }
1.156 +
1.157 + private void handleFragmentedCharacters() throws XMLStreamException, SAXException {
1.158 + buffer.setLength(0);
1.159 +
1.160 + // Append characters of first character event
1.161 + buffer.append(fastInfosetStreamReader.getTextCharacters(),
1.162 + fastInfosetStreamReader.getTextStart(),
1.163 + fastInfosetStreamReader.getTextLength());
1.164 +
1.165 + // Consume all character
1.166 + while(true) {
1.167 + switch(fastInfosetStreamReader.peekNext()) {
1.168 + case XMLStreamConstants.START_ELEMENT :
1.169 + processBufferedText(true);
1.170 + return;
1.171 + case XMLStreamConstants.END_ELEMENT :
1.172 + processBufferedText(false);
1.173 + return;
1.174 + case XMLStreamConstants.CHARACTERS :
1.175 + case XMLStreamConstants.CDATA :
1.176 + case XMLStreamConstants.SPACE :
1.177 + // Append characters of second and subsequent character events
1.178 + fastInfosetStreamReader.next();
1.179 + buffer.append(fastInfosetStreamReader.getTextCharacters(),
1.180 + fastInfosetStreamReader.getTextStart(),
1.181 + fastInfosetStreamReader.getTextLength());
1.182 + break;
1.183 + default:
1.184 + fastInfosetStreamReader.next();
1.185 + }
1.186 + }
1.187 + }
1.188 +
1.189 + private void handleEndElement() throws SAXException {
1.190 + processUnreportedText();
1.191 +
1.192 + tagName.uri = fastInfosetStreamReader.accessNamespaceURI();
1.193 + tagName.local = fastInfosetStreamReader.accessLocalName();
1.194 +
1.195 + visitor.endElement(tagName);
1.196 +
1.197 + for (int i = fastInfosetStreamReader.accessNamespaceCount() - 1; i >= 0; i--) {
1.198 + visitor.endPrefixMapping(fastInfosetStreamReader.getNamespacePrefix(i));
1.199 + }
1.200 + }
1.201 +
1.202 + final private class CharSequenceImpl implements CharSequence {
1.203 + char[] ch;
1.204 + int start;
1.205 + int length;
1.206 +
1.207 + CharSequenceImpl() {
1.208 + }
1.209 +
1.210 + CharSequenceImpl(final char[] ch, final int start, final int length) {
1.211 + this.ch = ch;
1.212 + this.start = start;
1.213 + this.length = length;
1.214 + }
1.215 +
1.216 + public void set() {
1.217 + ch = fastInfosetStreamReader.getTextCharacters();
1.218 + start = fastInfosetStreamReader.getTextStart();
1.219 + length = fastInfosetStreamReader.getTextLength();
1.220 + }
1.221 +
1.222 + // CharSequence interface
1.223 +
1.224 + public final int length() {
1.225 + return length;
1.226 + }
1.227 +
1.228 + public final char charAt(final int index) {
1.229 + return ch[start + index];
1.230 + }
1.231 +
1.232 + public final CharSequence subSequence(final int start, final int end) {
1.233 + return new CharSequenceImpl(ch, this.start + start, end - start);
1.234 + }
1.235 +
1.236 + public String toString() {
1.237 + return new String(ch, start, length);
1.238 + }
1.239 + }
1.240 +
1.241 + final private CharSequenceImpl charArray = new CharSequenceImpl();
1.242 +
1.243 + private void processNonIgnorableText() throws SAXException {
1.244 + textReported = true;
1.245 + boolean isTextAlgorithmAplied =
1.246 + (fastInfosetStreamReader.getTextAlgorithmBytes() != null);
1.247 +
1.248 + if (isTextAlgorithmAplied &&
1.249 + fastInfosetStreamReader.getTextAlgorithmIndex() == EncodingAlgorithmIndexes.BASE64) {
1.250 + base64Data.set(fastInfosetStreamReader.getTextAlgorithmBytesClone(),null);
1.251 + visitor.text(base64Data);
1.252 + } else {
1.253 + if (isTextAlgorithmAplied) {
1.254 + fastInfosetStreamReader.getText();
1.255 + }
1.256 +
1.257 + charArray.set();
1.258 + visitor.text(charArray);
1.259 + }
1.260 + }
1.261 +
1.262 + private void processIgnorableText() throws SAXException {
1.263 + boolean isTextAlgorithmAplied =
1.264 + (fastInfosetStreamReader.getTextAlgorithmBytes() != null);
1.265 +
1.266 + if (isTextAlgorithmAplied &&
1.267 + fastInfosetStreamReader.getTextAlgorithmIndex() == EncodingAlgorithmIndexes.BASE64) {
1.268 + base64Data.set(fastInfosetStreamReader.getTextAlgorithmBytesClone(),null);
1.269 + visitor.text(base64Data);
1.270 + textReported = true;
1.271 + } else {
1.272 + if (isTextAlgorithmAplied) {
1.273 + fastInfosetStreamReader.getText();
1.274 + }
1.275 +
1.276 + charArray.set();
1.277 + if (!WhiteSpaceProcessor.isWhiteSpace(charArray)) {
1.278 + visitor.text(charArray);
1.279 + textReported = true;
1.280 + }
1.281 + }
1.282 + }
1.283 +
1.284 + private void processBufferedText(boolean ignorable) throws SAXException {
1.285 + if (!ignorable || !WhiteSpaceProcessor.isWhiteSpace(buffer)) {
1.286 + visitor.text(buffer);
1.287 + textReported = true;
1.288 + }
1.289 + }
1.290 +
1.291 + private void processUnreportedText() throws SAXException {
1.292 + if(!textReported && predictor.expectText()) {
1.293 + visitor.text("");
1.294 + }
1.295 + textReported = false;
1.296 + }
1.297 +}
