/*
* Copyright (c) 2005, 2006, 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.
*
* THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC.
*/
package com.sun.xml.internal.fastinfoset.tools;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;
import java.util.Stack;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.ext.LexicalHandler;
import org.xml.sax.helpers.DefaultHandler;
import com.sun.xml.internal.fastinfoset.CommonResourceBundle;
public class SAXEventSerializer extends DefaultHandler
implements LexicalHandler {
private Writer _writer;
private boolean _charactersAreCDATA;
private StringBuffer _characters;
private Stack _namespaceStack = new Stack();
protected List _namespaceAttributes;
public SAXEventSerializer(OutputStream s) throws IOException {
_writer = new OutputStreamWriter(s);
_charactersAreCDATA = false;
}
// -- ContentHandler interface ---------------------------------------
public void startDocument() throws SAXException {
try {
_writer.write("<sax xmlns=\"http://www.sun.com/xml/sax-events\">\n");
_writer.write("<startDocument/>\n");
_writer.flush();
}
catch (IOException e) {
throw new SAXException(e);
}
}
public void endDocument() throws SAXException {
try {
_writer.write("<endDocument/>\n");
_writer.write("</sax>");
_writer.flush();
_writer.close();
}
catch (IOException e) {
throw new SAXException(e);
}
}
public void startPrefixMapping(String prefix, String uri)
throws SAXException
{
if (_namespaceAttributes == null) {
_namespaceAttributes = new ArrayList();
}
String qName = (prefix.length() == 0) ? "xmlns" : "xmlns" + prefix;
AttributeValueHolder attribute = new AttributeValueHolder(
qName,
prefix,
uri,
null,
null);
_namespaceAttributes.add(attribute);
}
public void endPrefixMapping(String prefix)
throws SAXException
{
/*
try {
outputCharacters();
_writer.write("<endPrefixMapping prefix=\"" +
prefix + "\"/>\n");
_writer.flush();
}
catch (IOException e) {
throw new SAXException(e);
}
*/
}
public void startElement(String uri, String localName,
String qName, Attributes attributes)
throws SAXException
{
try {
outputCharacters();
if (_namespaceAttributes != null) {
AttributeValueHolder[] attrsHolder = new AttributeValueHolder[0];
attrsHolder = (AttributeValueHolder[])_namespaceAttributes.toArray(attrsHolder);
// Sort attributes
quicksort(attrsHolder, 0, attrsHolder.length - 1);
for (int i = 0; i < attrsHolder.length; i++) {
_writer.write("<startPrefixMapping prefix=\"" +
attrsHolder[i].localName + "\" uri=\"" + attrsHolder[i].uri + "\"/>\n");
_writer.flush();
}
_namespaceStack.push(attrsHolder);
_namespaceAttributes = null;
} else {
_namespaceStack.push(null);
}
AttributeValueHolder[] attrsHolder =
new AttributeValueHolder[attributes.getLength()];
for (int i = 0; i < attributes.getLength(); i++) {
attrsHolder[i] = new AttributeValueHolder(
attributes.getQName(i),
attributes.getLocalName(i),
attributes.getURI(i),
attributes.getType(i),
attributes.getValue(i));
}
// Sort attributes
quicksort(attrsHolder, 0, attrsHolder.length - 1);
int attributeCount = 0;
for (int i = 0; i < attrsHolder.length; i++) {
if (attrsHolder[i].uri.equals("http://www.w3.org/2000/xmlns/")) {
// Ignore XMLNS attributes
continue;
}
attributeCount++;
}
if (attributeCount == 0) {
_writer.write("<startElement uri=\"" + uri
+ "\" localName=\"" + localName + "\" qName=\""
+ qName + "\"/>\n");
return;
}
_writer.write("<startElement uri=\"" + uri
+ "\" localName=\"" + localName + "\" qName=\""
+ qName + "\">\n");
// Serialize attributes as children
for (int i = 0; i < attrsHolder.length; i++) {
if (attrsHolder[i].uri.equals("http://www.w3.org/2000/xmlns/")) {
// Ignore XMLNS attributes
continue;
}
_writer.write(
" <attribute qName=\"" + attrsHolder[i].qName +
"\" localName=\"" + attrsHolder[i].localName +
"\" uri=\"" + attrsHolder[i].uri +
// "\" type=\"" + attrsHolder[i].type +
"\" value=\"" + attrsHolder[i].value +
"\"/>\n");
}
_writer.write("</startElement>\n");
_writer.flush();
}
catch (IOException e) {
throw new SAXException(e);
}
}
public void endElement(String uri, String localName, String qName)
throws SAXException
{
try {
outputCharacters();
_writer.write("<endElement uri=\"" + uri
+ "\" localName=\"" + localName + "\" qName=\""
+ qName + "\"/>\n");
_writer.flush();
// Write out the end prefix here rather than waiting
// for the explicit events
AttributeValueHolder[] attrsHolder = (AttributeValueHolder[])_namespaceStack.pop();
if (attrsHolder != null) {
for (int i = 0; i < attrsHolder.length; i++) {
_writer.write("<endPrefixMapping prefix=\"" +
attrsHolder[i].localName + "\"/>\n");
_writer.flush();
}
}
}
catch (IOException e) {
throw new SAXException(e);
}
}
public void characters(char[] ch, int start, int length)
throws SAXException
{
if (length == 0) {
return;
}
if (_characters == null) {
_characters = new StringBuffer();
}
// Coalesce multiple character events
_characters.append(ch, start, length);
/*
try {
_writer.write("<characters>" +
(_charactersAreCDATA ? "<![CDATA[" : "") +
new String(ch, start, length) +
(_charactersAreCDATA ? "]]>" : "") +
"</characters>\n");
_writer.flush();
}
catch (IOException e) {
throw new SAXException(e);
}
*/
}
private void outputCharacters() throws SAXException {
if (_characters == null) {
return;
}
try {
_writer.write("<characters>" +
(_charactersAreCDATA ? "<![CDATA[" : "") +
_characters +
(_charactersAreCDATA ? "]]>" : "") +
"</characters>\n");
_writer.flush();
_characters = null;
} catch (IOException e) {
throw new SAXException(e);
}
}
public void ignorableWhitespace(char[] ch, int start, int length)
throws SAXException
{
// Report ignorable ws as characters (assumes validation off)
characters(ch, start, length);
}
public void processingInstruction(String target, String data)
throws SAXException
{
try {
outputCharacters();
_writer.write("<processingInstruction target=\"" + target
+ "\" data=\"" + data + "\"/>\n");
_writer.flush();
}
catch (IOException e) {
throw new SAXException(e);
}
}
// -- LexicalHandler interface ---------------------------------------
public void startDTD(String name, String publicId, String systemId)
throws SAXException {
// Not implemented
}
public void endDTD()
throws SAXException {
// Not implemented
}
public void startEntity(String name)
throws SAXException {
// Not implemented
}
public void endEntity(String name)
throws SAXException {
// Not implemented
}
public void startCDATA()
throws SAXException {
_charactersAreCDATA = true;
}
public void endCDATA()
throws SAXException {
_charactersAreCDATA = false;
}
public void comment(char[] ch, int start, int length)
throws SAXException
{
try {
outputCharacters();
_writer.write("<comment>" +
new String(ch, start, length) +
"</comment>\n");
_writer.flush();
}
catch (IOException e) {
throw new SAXException(e);
}
}
// -- Utility methods ------------------------------------------------
private void quicksort(AttributeValueHolder[] attrs, int p, int r) {
while (p < r) {
final int q = partition(attrs, p, r);
quicksort(attrs, p, q);
p = q + 1;
}
}
private int partition(AttributeValueHolder[] attrs, int p, int r) {
AttributeValueHolder x = attrs[(p + r) >>> 1];
int i = p - 1;
int j = r + 1;
while (true) {
while (x.compareTo(attrs[--j]) < 0);
while (x.compareTo(attrs[++i]) > 0);
if (i < j) {
final AttributeValueHolder t = attrs[i];
attrs[i] = attrs[j];
attrs[j] = t;
}
else {
return j;
}
}
}
public static class AttributeValueHolder implements Comparable {
public final String qName;
public final String localName;
public final String uri;
public final String type;
public final String value;
public AttributeValueHolder(String qName,
String localName,
String uri,
String type,
String value)
{
this.qName = qName;
this.localName = localName;
this.uri = uri;
this.type = type;
this.value = value;
}
public int compareTo(Object o) {
try {
return qName.compareTo(((AttributeValueHolder) o).qName);
}
catch (Exception e) {
throw new RuntimeException(CommonResourceBundle.getInstance().getString("message.AttributeValueHolderExpected"));
}
}
}
}