author | mkos |
Sun, 30 Dec 2012 00:00:00 +0100 | |
changeset 22678 | ac1ea46be942 |
parent 12009 | 4abb694f273a |
permissions | -rw-r--r-- |
12009 | 1 |
/* |
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ac1ea46be942
8029237: Update copyright year to match last edit in jaxws repository for 2012
mkos
parents:
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changeset
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* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.xml.internal.bind.v2.runtime.output; |
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import java.io.IOException; |
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import java.io.OutputStream; |
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import java.io.StringWriter; |
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import javax.xml.stream.XMLStreamException; |
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import com.sun.xml.internal.bind.DatatypeConverterImpl; |
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import com.sun.xml.internal.bind.marshaller.CharacterEscapeHandler; |
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import com.sun.xml.internal.bind.v2.runtime.Name; |
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import com.sun.xml.internal.bind.v2.runtime.XMLSerializer; |
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import com.sun.xml.internal.bind.v2.runtime.MarshallerImpl; |
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import org.xml.sax.SAXException; |
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/** |
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* {@link XmlOutput} implementation specialized for UTF-8. |
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* |
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* @author Kohsuke Kawaguchi |
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* @author Paul Sandoz |
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*/ |
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public class UTF8XmlOutput extends XmlOutputAbstractImpl { |
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protected final OutputStream out; |
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/** prefixes encoded. */ |
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private Encoded[] prefixes = new Encoded[8]; |
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/** |
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* Of the {@link #prefixes}, number of filled entries. |
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* This is almost the same as {@link NamespaceContextImpl#count()}, |
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* except that it allows us to handle contextual in-scope namespace bindings correctly. |
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*/ |
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private int prefixCount; |
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/** local names encoded in UTF-8. All entries are pre-filled. */ |
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private final Encoded[] localNames; |
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/** Temporary buffer used to encode text. */ |
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/* |
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* TODO |
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* The textBuffer could write directly to the _octetBuffer |
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* when encoding a string if Encoder is modified. |
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* This will avoid an additional memory copy. |
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*/ |
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private final Encoded textBuffer = new Encoded(); |
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/** Buffer of octets for writing. */ |
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// TODO: Obtain buffer size from property on the JAXB context |
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protected final byte[] octetBuffer = new byte[1024]; |
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/** Index in buffer to write to. */ |
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protected int octetBufferIndex; |
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/** |
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* Set to true to indicate that we need to write '>' |
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* to close a start tag. Deferring the write of this char |
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* allows us to write "/>" for empty elements. |
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*/ |
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protected boolean closeStartTagPending = false; |
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/** |
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* @see MarshallerImpl#header |
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*/ |
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private String header; |
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private CharacterEscapeHandler escapeHandler = null; |
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/** |
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* |
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* @param localNames |
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* local names encoded in UTF-8. |
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*/ |
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public UTF8XmlOutput(OutputStream out, Encoded[] localNames, CharacterEscapeHandler escapeHandler) { |
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this.out = out; |
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this.localNames = localNames; |
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for( int i=0; i<prefixes.length; i++ ) |
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prefixes[i] = new Encoded(); |
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this.escapeHandler = escapeHandler; |
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} |
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public void setHeader(String header) { |
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this.header = header; |
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} |
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@Override |
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public void startDocument(XMLSerializer serializer, boolean fragment, int[] nsUriIndex2prefixIndex, NamespaceContextImpl nsContext) throws IOException, SAXException, XMLStreamException { |
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super.startDocument(serializer, fragment,nsUriIndex2prefixIndex,nsContext); |
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octetBufferIndex = 0; |
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if(!fragment) { |
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write(XML_DECL); |
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} |
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if(header!=null) { |
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textBuffer.set(header); |
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textBuffer.write(this); |
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} |
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} |
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@Override |
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public void endDocument(boolean fragment) throws IOException, SAXException, XMLStreamException { |
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flushBuffer(); |
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super.endDocument(fragment); |
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} |
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/** |
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* Writes '>' to close the start tag, if necessary. |
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*/ |
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protected final void closeStartTag() throws IOException { |
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if(closeStartTagPending) { |
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write('>'); |
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closeStartTagPending = false; |
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} |
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} |
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public void beginStartTag(int prefix, String localName) throws IOException { |
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closeStartTag(); |
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int base= pushNsDecls(); |
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write('<'); |
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writeName(prefix,localName); |
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writeNsDecls(base); |
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} |
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@Override |
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public void beginStartTag(Name name) throws IOException { |
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closeStartTag(); |
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int base = pushNsDecls(); |
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write('<'); |
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writeName(name); |
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writeNsDecls(base); |
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} |
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private int pushNsDecls() { |
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int total = nsContext.count(); |
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NamespaceContextImpl.Element ns = nsContext.getCurrent(); |
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if(total > prefixes.length) { |
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// reallocate |
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int m = Math.max(total,prefixes.length*2); |
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Encoded[] buf = new Encoded[m]; |
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System.arraycopy(prefixes,0,buf,0,prefixes.length); |
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for( int i=prefixes.length; i<buf.length; i++ ) |
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buf[i] = new Encoded(); |
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prefixes = buf; |
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} |
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int base = Math.min(prefixCount,ns.getBase()); |
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int size = nsContext.count(); |
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for( int i=base; i<size; i++ ) { |
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String p = nsContext.getPrefix(i); |
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Encoded e = prefixes[i]; |
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if(p.length()==0) { |
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e.buf = EMPTY_BYTE_ARRAY; |
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e.len = 0; |
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} else { |
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e.set(p); |
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e.append(':'); |
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} |
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} |
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prefixCount = size; |
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return base; |
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} |
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protected void writeNsDecls(int base) throws IOException { |
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NamespaceContextImpl.Element ns = nsContext.getCurrent(); |
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int size = nsContext.count(); |
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for( int i=ns.getBase(); i<size; i++ ) |
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writeNsDecl(i); |
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} |
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/** |
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* Writes a single namespace declaration for the specified prefix. |
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*/ |
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protected final void writeNsDecl(int prefixIndex) throws IOException { |
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String p = nsContext.getPrefix(prefixIndex); |
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if(p.length()==0) { |
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if(nsContext.getCurrent().isRootElement() |
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&& nsContext.getNamespaceURI(prefixIndex).length()==0) |
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return; // no point in declaring xmlns="" on the root element |
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write(XMLNS_EQUALS); |
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} else { |
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Encoded e = prefixes[prefixIndex]; |
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write(XMLNS_COLON); |
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write(e.buf,0,e.len-1); // skip the trailing ':' |
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write(EQUALS); |
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} |
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doText(nsContext.getNamespaceURI(prefixIndex),true); |
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write('\"'); |
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} |
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private void writePrefix(int prefix) throws IOException { |
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prefixes[prefix].write(this); |
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} |
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private void writeName(Name name) throws IOException { |
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writePrefix(nsUriIndex2prefixIndex[name.nsUriIndex]); |
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localNames[name.localNameIndex].write(this); |
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} |
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private void writeName(int prefix, String localName) throws IOException { |
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writePrefix(prefix); |
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textBuffer.set(localName); |
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textBuffer.write(this); |
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} |
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@Override |
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public void attribute(Name name, String value) throws IOException { |
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write(' '); |
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if(name.nsUriIndex==-1) { |
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localNames[name.localNameIndex].write(this); |
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} else |
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writeName(name); |
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write(EQUALS); |
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doText(value,true); |
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write('\"'); |
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} |
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public void attribute(int prefix, String localName, String value) throws IOException { |
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write(' '); |
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if(prefix==-1) { |
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textBuffer.set(localName); |
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textBuffer.write(this); |
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} else |
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writeName(prefix,localName); |
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write(EQUALS); |
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doText(value,true); |
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write('\"'); |
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} |
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public void endStartTag() throws IOException { |
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closeStartTagPending = true; |
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} |
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@Override |
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public void endTag(Name name) throws IOException { |
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if(closeStartTagPending) { |
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write(EMPTY_TAG); |
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closeStartTagPending = false; |
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} else { |
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write(CLOSE_TAG); |
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writeName(name); |
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write('>'); |
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} |
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} |
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public void endTag(int prefix, String localName) throws IOException { |
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if(closeStartTagPending) { |
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write(EMPTY_TAG); |
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closeStartTagPending = false; |
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} else { |
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write(CLOSE_TAG); |
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writeName(prefix,localName); |
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write('>'); |
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} |
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} |
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public void text(String value, boolean needSP) throws IOException { |
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closeStartTag(); |
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if(needSP) |
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write(' '); |
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doText(value,false); |
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} |
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public void text(Pcdata value, boolean needSP) throws IOException { |
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closeStartTag(); |
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if(needSP) |
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write(' '); |
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value.writeTo(this); |
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} |
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private void doText(String value,boolean isAttribute) throws IOException { |
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if (escapeHandler != null) { |
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StringWriter sw = new StringWriter(); |
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escapeHandler.escape(value.toCharArray(), 0, value.length(), isAttribute, sw); |
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textBuffer.set(sw.toString()); |
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} else { |
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textBuffer.setEscape(value, isAttribute); |
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} |
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textBuffer.write(this); |
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} |
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public final void text(int value) throws IOException { |
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closeStartTag(); |
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/* |
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* TODO |
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* Change to use the octet buffer directly |
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*/ |
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// max is -2147483648 and 11 digits |
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boolean minus = (value<0); |
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textBuffer.ensureSize(11); |
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byte[] buf = textBuffer.buf; |
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int idx = 11; |
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do { |
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int r = value%10; |
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if(r<0) r = -r; |
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buf[--idx] = (byte)('0'|r); // really measn 0x30+r but 0<=r<10, so bit-OR would do. |
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value /= 10; |
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} while(value!=0); |
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if(minus) buf[--idx] = (byte)'-'; |
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write(buf,idx,11-idx); |
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} |
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/** |
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* Writes the given byte[] as base64 encoded binary to the output. |
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* |
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* <p> |
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* Being defined on this class allows this method to access the buffer directly, |
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* which translates to a better performance. |
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*/ |
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public void text(byte[] data, int dataLen) throws IOException { |
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closeStartTag(); |
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int start = 0; |
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while(dataLen>0) { |
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// how many bytes (in data) can we write without overflowing the buffer? |
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int batchSize = Math.min(((octetBuffer.length-octetBufferIndex)/4)*3,dataLen); |
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// write the batch |
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octetBufferIndex = DatatypeConverterImpl._printBase64Binary(data,start,batchSize,octetBuffer,octetBufferIndex); |
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if(batchSize<dataLen) |
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flushBuffer(); |
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start += batchSize; |
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dataLen -= batchSize; |
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} |
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} |
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// |
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// |
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// series of the write method that places bytes to the output |
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// (by doing some buffering internal to this class) |
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// |
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/** |
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* Writes one byte directly into the buffer. |
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* |
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* <p> |
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* This method can be used somewhat like the {@code text} method, |
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* but it doesn't perform character escaping. |
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*/ |
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public final void write(int i) throws IOException { |
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if (octetBufferIndex < octetBuffer.length) { |
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octetBuffer[octetBufferIndex++] = (byte)i; |
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} else { |
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out.write(octetBuffer); |
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octetBufferIndex = 1; |
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octetBuffer[0] = (byte)i; |
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} |
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} |
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protected final void write(byte[] b) throws IOException { |
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write(b, 0, b.length); |
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} |
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protected final void write(byte[] b, int start, int length) throws IOException { |
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if ((octetBufferIndex + length) < octetBuffer.length) { |
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System.arraycopy(b, start, octetBuffer, octetBufferIndex, length); |
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octetBufferIndex += length; |
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} else { |
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out.write(octetBuffer, 0, octetBufferIndex); |
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out.write(b, start, length); |
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octetBufferIndex = 0; |
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} |
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} |
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protected final void flushBuffer() throws IOException { |
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out.write(octetBuffer, 0, octetBufferIndex); |
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octetBufferIndex = 0; |
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} |
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static byte[] toBytes(String s) { |
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byte[] buf = new byte[s.length()]; |
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for( int i=s.length()-1; i>=0; i-- ) |
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buf[i] = (byte)s.charAt(i); |
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return buf; |
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} |
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// per instance copy to prevent an attack where malicious OutputStream |
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// rewrites the byte array. |
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private final byte[] XMLNS_EQUALS = _XMLNS_EQUALS.clone(); |
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private final byte[] XMLNS_COLON = _XMLNS_COLON.clone(); |
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private final byte[] EQUALS = _EQUALS.clone(); |
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private final byte[] CLOSE_TAG = _CLOSE_TAG.clone(); |
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private final byte[] EMPTY_TAG = _EMPTY_TAG.clone(); |
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private final byte[] XML_DECL = _XML_DECL.clone(); |
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// masters |
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private static final byte[] _XMLNS_EQUALS = toBytes(" xmlns=\""); |
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private static final byte[] _XMLNS_COLON = toBytes(" xmlns:"); |
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private static final byte[] _EQUALS = toBytes("=\""); |
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private static final byte[] _CLOSE_TAG = toBytes("</"); |
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private static final byte[] _EMPTY_TAG = toBytes("/>"); |
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private static final byte[] _XML_DECL = toBytes("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>"); |
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// no need to copy |
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private static final byte[] EMPTY_BYTE_ARRAY = new byte[0]; |
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} |