Java example source code file (BaseMarkupSerializer.java)
The BaseMarkupSerializer.java Java example source code
/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
/*
* Copyright 1999-2002,2004,2005 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Sep 14, 2000:
// Fixed comments to preserve whitespaces and add a line break
// when indenting. Reported by Gervase Markham <gerv@gerv.net>
// Sep 14, 2000:
// Fixed serializer to report IO exception directly, instead at
// the end of document processing.
// Reported by Patrick Higgins <phiggins@transzap.com>
// Sep 13, 2000:
// CR in character data will print as �D;
// Aug 25, 2000:
// Fixed processing instruction printing inside element content
// to not escape content. Reported by Mikael Staldal
// <d96-mst@d.kth.se>
// Aug 25, 2000:
// Added ability to omit comments.
// Contributed by Anupam Bagchi <abagchi@jtcsv.com>
// Aug 26, 2000:
// Fixed bug in newline handling when preserving spaces.
// Contributed by Mike Dusseault <mdusseault@home.com>
// Aug 29, 2000:
// Fixed state.unescaped not being set to false when
// entering element state.
// Reported by Lowell Vaughn <lvaughn@agillion.com>
package com.sun.org.apache.xml.internal.serialize;
import java.io.IOException;
import java.io.OutputStream;
import java.io.Writer;
import java.util.Hashtable;
import java.util.Vector;
import com.sun.org.apache.xerces.internal.dom.DOMErrorImpl;
import com.sun.org.apache.xerces.internal.dom.DOMLocatorImpl;
import com.sun.org.apache.xerces.internal.dom.DOMMessageFormatter;
import com.sun.org.apache.xerces.internal.util.XMLChar;
import org.w3c.dom.DOMImplementation;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.DocumentType;
import org.w3c.dom.DOMError;
import org.w3c.dom.DOMErrorHandler;
import org.w3c.dom.Element;
import org.w3c.dom.Entity;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.Notation;
import org.w3c.dom.ls.LSException;
import org.w3c.dom.ls.LSSerializerFilter;
import org.w3c.dom.traversal.NodeFilter;
import org.xml.sax.ContentHandler;
import org.xml.sax.DTDHandler;
import org.xml.sax.DocumentHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
import org.xml.sax.ext.DeclHandler;
import org.xml.sax.ext.LexicalHandler;
/**
* Base class for a serializer supporting both DOM and SAX pretty
* serializing of XML/HTML/XHTML documents. Derives classes perform
* the method-specific serializing, this class provides the common
* serializing mechanisms.
* <p>
* The serializer must be initialized with the proper writer and
* output format before it can be used by calling {@link #setOutputCharStream}
* or {@link #setOutputByteStream} for the writer and {@link #setOutputFormat}
* for the output format.
* <p>
* The serializer can be reused any number of times, but cannot
* be used concurrently by two threads.
* <p>
* If an output stream is used, the encoding is taken from the
* output format (defaults to <tt>UTF-8). If a writer is
* used, make sure the writer uses the same encoding (if applies)
* as specified in the output format.
* <p>
* The serializer supports both DOM and SAX. DOM serializing is done
* by calling {@link #serialize(Document)} and SAX serializing is done by firing
* SAX events and using the serializer as a document handler.
* This also applies to derived class.
* <p>
* If an I/O exception occurs while serializing, the serializer
* will not throw an exception directly, but only throw it
* at the end of serializing (either DOM or SAX's {@link
* org.xml.sax.DocumentHandler#endDocument}.
* <p>
* For elements that are not specified as whitespace preserving,
* the serializer will potentially break long text lines at space
* boundaries, indent lines, and serialize elements on separate
* lines. Line terminators will be regarded as spaces, and
* spaces at beginning of line will be stripped.
* <p>
* When indenting, the serializer is capable of detecting seemingly
* element content, and serializing these elements indented on separate
* lines. An element is serialized indented when it is the first or
* last child of an element, or immediate following or preceding
* another element.
*
*
* @author <a href="mailto:arkin@intalio.com">Assaf Arkin
* @author <a href="mailto:rahul.srivastava@sun.com">Rahul Srivastava
* @author Elena Litani, IBM
* @author Sunitha Reddy, Sun Microsystems
* @see Serializer
* @see LSSerializer
*/
public abstract class BaseMarkupSerializer
implements ContentHandler, DocumentHandler, LexicalHandler,
DTDHandler, DeclHandler, DOMSerializer, Serializer
{
// DOM L3 implementation
protected short features = 0xFFFFFFFF;
protected DOMErrorHandler fDOMErrorHandler;
protected final DOMErrorImpl fDOMError = new DOMErrorImpl();
protected LSSerializerFilter fDOMFilter;
protected EncodingInfo _encodingInfo;
/**
* Holds array of all element states that have been entered.
* The array is automatically resized. When leaving an element,
* it's state is not removed but reused when later returning
* to the same nesting level.
*/
private ElementState[] _elementStates;
/**
* The index of the next state to place in the array,
* or one plus the index of the current state. When zero,
* we are in no state.
*/
private int _elementStateCount;
/**
* Vector holding comments and PIs that come before the root
* element (even after it), see {@link #serializePreRoot}.
*/
private Vector _preRoot;
/**
* If the document has been started (header serialized), this
* flag is set to true so it's not started twice.
*/
protected boolean _started;
/**
* True if the serializer has been prepared. This flag is set
* to false when the serializer is reset prior to using it,
* and to true after it has been prepared for usage.
*/
private boolean _prepared;
/**
* Association between namespace URIs (keys) and prefixes (values).
* Accumulated here prior to starting an element and placing this
* list in the element state.
*/
protected Hashtable _prefixes;
/**
* The system identifier of the document type, if known.
*/
protected String _docTypePublicId;
/**
* The system identifier of the document type, if known.
*/
protected String _docTypeSystemId;
/**
* The output format associated with this serializer. This will never
* be a null reference. If no format was passed to the constructor,
* the default one for this document type will be used. The format
* object is never changed by the serializer.
*/
protected OutputFormat _format;
/**
* The printer used for printing text parts.
*/
protected Printer _printer;
/**
* True if indenting printer.
*/
protected boolean _indenting;
/** Temporary buffer to store character data */
protected final StringBuffer fStrBuffer = new StringBuffer(40);
/**
* The underlying writer.
*/
private Writer _writer;
/**
* The output stream.
*/
private OutputStream _output;
/** Current node that is being processed */
protected Node fCurrentNode = null;
//--------------------------------//
// Constructor and initialization //
//--------------------------------//
/**
* Protected constructor can only be used by derived class.
* Must initialize the serializer before serializing any document,
* by calling {@link #setOutputCharStream} or {@link #setOutputByteStream}
* first
*/
protected BaseMarkupSerializer( OutputFormat format )
{
int i;
_elementStates = new ElementState[ 10 ];
for ( i = 0 ; i < _elementStates.length ; ++i )
_elementStates[ i ] = new ElementState();
_format = format;
}
public DocumentHandler asDocumentHandler()
throws IOException
{
prepare();
return this;
}
public ContentHandler asContentHandler()
throws IOException
{
prepare();
return this;
}
public DOMSerializer asDOMSerializer()
throws IOException
{
prepare();
return this;
}
public void setOutputByteStream( OutputStream output )
{
if ( output == null ) {
String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.SERIALIZER_DOMAIN,
"ArgumentIsNull", new Object[]{"output"});
throw new NullPointerException(msg);
}
_output = output;
_writer = null;
reset();
}
public void setOutputCharStream( Writer writer )
{
if ( writer == null ) {
String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.SERIALIZER_DOMAIN,
"ArgumentIsNull", new Object[]{"writer"});
throw new NullPointerException(msg);
}
_writer = writer;
_output = null;
reset();
}
public void setOutputFormat( OutputFormat format )
{
if ( format == null ) {
String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.SERIALIZER_DOMAIN,
"ArgumentIsNull", new Object[]{"format"});
throw new NullPointerException(msg);
}
_format = format;
reset();
}
public boolean reset()
{
if ( _elementStateCount > 1 ) {
String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.SERIALIZER_DOMAIN,
"ResetInMiddle", null);
throw new IllegalStateException(msg);
}
_prepared = false;
fCurrentNode = null;
fStrBuffer.setLength(0);
return true;
}
protected void prepare()
throws IOException
{
if ( _prepared )
return;
if ( _writer == null && _output == null ) {
String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.SERIALIZER_DOMAIN,
"NoWriterSupplied", null);
throw new IOException(msg);
}
// If the output stream has been set, use it to construct
// the writer. It is possible that the serializer has been
// reused with the same output stream and different encoding.
_encodingInfo = _format.getEncodingInfo();
if ( _output != null ) {
_writer = _encodingInfo.getWriter(_output);
}
if ( _format.getIndenting() ) {
_indenting = true;
_printer = new IndentPrinter( _writer, _format );
} else {
_indenting = false;
_printer = new Printer( _writer, _format );
}
ElementState state;
_elementStateCount = 0;
state = _elementStates[ 0 ];
state.namespaceURI = null;
state.localName = null;
state.rawName = null;
state.preserveSpace = _format.getPreserveSpace();
state.empty = true;
state.afterElement = false;
state.afterComment = false;
state.doCData = state.inCData = false;
state.prefixes = null;
_docTypePublicId = _format.getDoctypePublic();
_docTypeSystemId = _format.getDoctypeSystem();
_started = false;
_prepared = true;
}
//----------------------------------//
// DOM document serializing methods //
//----------------------------------//
/**
* Serializes the DOM element using the previously specified
* writer and output format. Throws an exception only if
* an I/O exception occured while serializing.
*
* @param elem The element to serialize
* @throws IOException An I/O exception occured while
* serializing
*/
public void serialize( Element elem )
throws IOException
{
reset();
prepare();
serializeNode( elem );
_printer.flush();
if ( _printer.getException() != null )
throw _printer.getException();
}
/**
* Serializes a node using the previously specified
* writer and output format. Throws an exception only if
* an I/O exception occured while serializing.
*
* @param node Node to serialize
* @throws IOException An I/O exception occured while serializing
*/
public void serialize( Node node ) throws IOException {
reset();
prepare();
serializeNode( node );
//Print any PIs and Comments which appeared in 'node'
serializePreRoot();
_printer.flush();
if ( _printer.getException() != null )
throw _printer.getException();
}
/**
* Serializes the DOM document fragmnt using the previously specified
* writer and output format. Throws an exception only if
* an I/O exception occured while serializing.
*
* @param elem The element to serialize
* @throws IOException An I/O exception occured while
* serializing
*/
public void serialize( DocumentFragment frag )
throws IOException
{
reset();
prepare();
serializeNode( frag );
_printer.flush();
if ( _printer.getException() != null )
throw _printer.getException();
}
/**
* Serializes the DOM document using the previously specified
* writer and output format. Throws an exception only if
* an I/O exception occured while serializing.
*
* @param doc The document to serialize
* @throws IOException An I/O exception occured while
* serializing
*/
public void serialize( Document doc )
throws IOException
{
reset();
prepare();
serializeNode( doc );
serializePreRoot();
_printer.flush();
if ( _printer.getException() != null )
throw _printer.getException();
}
//------------------------------------------//
// SAX document handler serializing methods //
//------------------------------------------//
public void startDocument()
throws SAXException
{
try {
prepare();
} catch ( IOException except ) {
throw new SAXException( except.toString() );
}
// Nothing to do here. All the magic happens in startDocument(String)
}
public void characters( char[] chars, int start, int length )
throws SAXException
{
ElementState state;
try {
state = content();
// Check if text should be print as CDATA section or unescaped
// based on elements listed in the output format (the element
// state) or whether we are inside a CDATA section or entity.
if ( state.inCData || state.doCData ) {
int saveIndent;
// Print a CDATA section. The text is not escaped, but ']]>'
// appearing in the code must be identified and dealt with.
// The contents of a text node is considered space preserving.
if ( ! state.inCData ) {
_printer.printText( "<![CDATA[" );
state.inCData = true;
}
saveIndent = _printer.getNextIndent();
_printer.setNextIndent( 0 );
char ch;
final int end = start + length;
for ( int index = start ; index < end; ++index ) {
ch = chars[index];
if ( ch == ']' && index + 2 < end &&
chars[ index + 1 ] == ']' && chars[ index + 2 ] == '>' ) {
_printer.printText("]]]]><![CDATA[>");
index +=2;
continue;
}
if (!XMLChar.isValid(ch)) {
// check if it is surrogate
if (++index < end) {
surrogates(ch, chars[index]);
}
else {
fatalError("The character '"+(char)ch+"' is an invalid XML character");
}
continue;
} else {
if ( ( ch >= ' ' && _encodingInfo.isPrintable((char)ch) && ch != 0xF7 ) ||
ch == '\n' || ch == '\r' || ch == '\t' ) {
_printer.printText((char)ch);
} else {
// The character is not printable -- split CDATA section
_printer.printText("]]>&#x");
_printer.printText(Integer.toHexString(ch));
_printer.printText(";<![CDATA[");
}
}
}
_printer.setNextIndent( saveIndent );
} else {
int saveIndent;
if ( state.preserveSpace ) {
// If preserving space then hold of indentation so no
// excessive spaces are printed at line breaks, escape
// the text content without replacing spaces and print
// the text breaking only at line breaks.
saveIndent = _printer.getNextIndent();
_printer.setNextIndent( 0 );
printText( chars, start, length, true, state.unescaped );
_printer.setNextIndent( saveIndent );
} else {
printText( chars, start, length, false, state.unescaped );
}
}
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public void ignorableWhitespace( char[] chars, int start, int length )
throws SAXException
{
int i;
try {
content();
// Print ignorable whitespaces only when indenting, after
// all they are indentation. Cancel the indentation to
// not indent twice.
if ( _indenting ) {
_printer.setThisIndent( 0 );
for ( i = start ; length-- > 0 ; ++i )
_printer.printText( chars[ i ] );
}
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public final void processingInstruction( String target, String code )
throws SAXException
{
try {
processingInstructionIO( target, code );
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public void processingInstructionIO( String target, String code )
throws IOException
{
int index;
ElementState state;
state = content();
// Create the processing instruction textual representation.
// Make sure we don't have '?>' inside either target or code.
index = target.indexOf( "?>" );
if ( index >= 0 )
fStrBuffer.append( "<?" ).append( target.substring( 0, index ) );
else
fStrBuffer.append( "<?" ).append( target );
if ( code != null ) {
fStrBuffer.append( ' ' );
index = code.indexOf( "?>" );
if ( index >= 0 )
fStrBuffer.append( code.substring( 0, index ) );
else
fStrBuffer.append( code );
}
fStrBuffer.append( "?>" );
// If before the root element (or after it), do not print
// the PI directly but place it in the pre-root vector.
if ( isDocumentState() ) {
if ( _preRoot == null )
_preRoot = new Vector();
_preRoot.addElement( fStrBuffer.toString() );
} else {
_printer.indent();
printText( fStrBuffer.toString(), true, true );
_printer.unindent();
if ( _indenting )
state.afterElement = true;
}
fStrBuffer.setLength(0);
}
public void comment( char[] chars, int start, int length )
throws SAXException
{
try {
comment( new String( chars, start, length ) );
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public void comment( String text )
throws IOException
{
int index;
ElementState state;
if ( _format.getOmitComments() )
return;
state = content();
// Create the processing comment textual representation.
// Make sure we don't have '-->' inside the comment.
index = text.indexOf( "-->" );
if ( index >= 0 )
fStrBuffer.append( "<!--" ).append( text.substring( 0, index ) ).append( "-->" );
else
fStrBuffer.append( "<!--" ).append( text ).append( "-->" );
// If before the root element (or after it), do not print
// the comment directly but place it in the pre-root vector.
if ( isDocumentState() ) {
if ( _preRoot == null )
_preRoot = new Vector();
_preRoot.addElement( fStrBuffer.toString() );
} else {
// Indent this element on a new line if the first
// content of the parent element or immediately
// following an element.
if ( _indenting && ! state.preserveSpace)
_printer.breakLine();
_printer.indent();
printText( fStrBuffer.toString(), true, true );
_printer.unindent();
if ( _indenting )
state.afterElement = true;
}
fStrBuffer.setLength(0);
state.afterComment = true;
state.afterElement = false;
}
public void startCDATA()
{
ElementState state;
state = getElementState();
state.doCData = true;
}
public void endCDATA()
{
ElementState state;
state = getElementState();
state.doCData = false;
}
public void startNonEscaping()
{
ElementState state;
state = getElementState();
state.unescaped = true;
}
public void endNonEscaping()
{
ElementState state;
state = getElementState();
state.unescaped = false;
}
public void startPreserving()
{
ElementState state;
state = getElementState();
state.preserveSpace = true;
}
public void endPreserving()
{
ElementState state;
state = getElementState();
state.preserveSpace = false;
}
/**
* Called at the end of the document to wrap it up.
* Will flush the output stream and throw an exception
* if any I/O error occured while serializing.
*
* @throws SAXException An I/O exception occured during
* serializing
*/
public void endDocument()
throws SAXException
{
try {
// Print all the elements accumulated outside of
// the root element.
serializePreRoot();
// Flush the output, this is necessary for fStrBuffered output.
_printer.flush();
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public void startEntity( String name )
{
// ???
}
public void endEntity( String name )
{
// ???
}
public void setDocumentLocator( Locator locator )
{
// Nothing to do
}
//-----------------------------------------//
// SAX content handler serializing methods //
//-----------------------------------------//
public void skippedEntity ( String name )
throws SAXException
{
try {
endCDATA();
content();
_printer.printText( '&' );
_printer.printText( name );
_printer.printText( ';' );
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public void startPrefixMapping( String prefix, String uri )
throws SAXException
{
if ( _prefixes == null )
_prefixes = new Hashtable();
_prefixes.put( uri, prefix == null ? "" : prefix );
}
public void endPrefixMapping( String prefix )
throws SAXException
{
}
//------------------------------------------//
// SAX DTD/Decl handler serializing methods //
//------------------------------------------//
public final void startDTD( String name, String publicId, String systemId )
throws SAXException
{
try {
_printer.enterDTD();
_docTypePublicId = publicId;
_docTypeSystemId = systemId;
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public void endDTD()
{
// Nothing to do here, all the magic occurs in startDocument(String).
}
public void elementDecl( String name, String model )
throws SAXException
{
try {
_printer.enterDTD();
_printer.printText( "<!ELEMENT " );
_printer.printText( name );
_printer.printText( ' ' );
_printer.printText( model );
_printer.printText( '>' );
if ( _indenting )
_printer.breakLine();
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public void attributeDecl( String eName, String aName, String type,
String valueDefault, String value )
throws SAXException
{
try {
_printer.enterDTD();
_printer.printText( "<!ATTLIST " );
_printer.printText( eName );
_printer.printText( ' ' );
_printer.printText( aName );
_printer.printText( ' ' );
_printer.printText( type );
if ( valueDefault != null ) {
_printer.printText( ' ' );
_printer.printText( valueDefault );
}
if ( value != null ) {
_printer.printText( " \"" );
printEscaped( value );
_printer.printText( '"' );
}
_printer.printText( '>' );
if ( _indenting )
_printer.breakLine();
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public void internalEntityDecl( String name, String value )
throws SAXException
{
try {
_printer.enterDTD();
_printer.printText( "<!ENTITY " );
_printer.printText( name );
_printer.printText( " \"" );
printEscaped( value );
_printer.printText( "\">" );
if ( _indenting )
_printer.breakLine();
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public void externalEntityDecl( String name, String publicId, String systemId )
throws SAXException
{
try {
_printer.enterDTD();
unparsedEntityDecl( name, publicId, systemId, null );
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public void unparsedEntityDecl( String name, String publicId,
String systemId, String notationName )
throws SAXException
{
try {
_printer.enterDTD();
if ( publicId == null ) {
_printer.printText( "<!ENTITY " );
_printer.printText( name );
_printer.printText( " SYSTEM " );
printDoctypeURL( systemId );
} else {
_printer.printText( "<!ENTITY " );
_printer.printText( name );
_printer.printText( " PUBLIC " );
printDoctypeURL( publicId );
_printer.printText( ' ' );
printDoctypeURL( systemId );
}
if ( notationName != null ) {
_printer.printText( " NDATA " );
_printer.printText( notationName );
}
_printer.printText( '>' );
if ( _indenting )
_printer.breakLine();
} catch ( IOException except ) {
throw new SAXException( except );
}
}
public void notationDecl( String name, String publicId, String systemId )
throws SAXException
{
try {
_printer.enterDTD();
if ( publicId != null ) {
_printer.printText( "<!NOTATION " );
_printer.printText( name );
_printer.printText( " PUBLIC " );
printDoctypeURL( publicId );
if ( systemId != null ) {
_printer.printText( ' ' );
printDoctypeURL( systemId );
}
} else {
_printer.printText( "<!NOTATION " );
_printer.printText( name );
_printer.printText( " SYSTEM " );
printDoctypeURL( systemId );
}
_printer.printText( '>' );
if ( _indenting )
_printer.breakLine();
} catch ( IOException except ) {
throw new SAXException( except );
}
}
//------------------------------------------//
// Generic node serializing methods methods //
//------------------------------------------//
/**
* Serialize the DOM node. This method is shared across XML, HTML and XHTML
* serializers and the differences are masked out in a separate {@link
* #serializeElement}.
*
* @param node The node to serialize
* @see #serializeElement
* @throws IOException An I/O exception occured while
* serializing
*/
protected void serializeNode( Node node )
throws IOException
{
fCurrentNode = node;
// Based on the node type call the suitable SAX handler.
// Only comments entities and documents which are not
// handled by SAX are serialized directly.
switch ( node.getNodeType() ) {
case Node.TEXT_NODE : {
String text;
text = node.getNodeValue();
if ( text != null ) {
if (fDOMFilter !=null &&
(fDOMFilter.getWhatToShow() & NodeFilter.SHOW_TEXT)!= 0) {
short code = fDOMFilter.acceptNode(node);
switch (code) {
case NodeFilter.FILTER_REJECT:
case NodeFilter.FILTER_SKIP: {
break;
}
default: {
characters(text);
}
}
}
else if ( !_indenting || getElementState().preserveSpace
|| (text.replace('\n',' ').trim().length() != 0))
characters( text );
}
break;
}
case Node.CDATA_SECTION_NODE : {
String text = node.getNodeValue();
if ((features & DOMSerializerImpl.CDATA) != 0) {
if (text != null) {
if (fDOMFilter != null
&& (fDOMFilter.getWhatToShow()
& NodeFilter.SHOW_CDATA_SECTION)
!= 0) {
short code = fDOMFilter.acceptNode(node);
switch (code) {
case NodeFilter.FILTER_REJECT :
case NodeFilter.FILTER_SKIP :
{
// skip the CDATA node
return;
}
default :
{
//fall through..
}
}
}
startCDATA();
characters(text);
endCDATA();
}
} else {
// transform into a text node
characters(text);
}
break;
}
case Node.COMMENT_NODE : {
String text;
if ( ! _format.getOmitComments() ) {
text = node.getNodeValue();
if ( text != null ) {
if (fDOMFilter !=null &&
(fDOMFilter.getWhatToShow() & NodeFilter.SHOW_COMMENT)!= 0) {
short code = fDOMFilter.acceptNode(node);
switch (code) {
case NodeFilter.FILTER_REJECT:
case NodeFilter.FILTER_SKIP: {
// skip the comment node
return;
}
default: {
// fall through
}
}
}
comment( text );
}
}
break;
}
case Node.ENTITY_REFERENCE_NODE : {
Node child;
endCDATA();
content();
if (((features & DOMSerializerImpl.ENTITIES) != 0)
|| (node.getFirstChild() == null)) {
if (fDOMFilter !=null &&
(fDOMFilter.getWhatToShow() & NodeFilter.SHOW_ENTITY_REFERENCE)!= 0) {
short code = fDOMFilter.acceptNode(node);
switch (code) {
case NodeFilter.FILTER_REJECT:{
return; // remove the node
}
case NodeFilter.FILTER_SKIP: {
child = node.getFirstChild();
while ( child != null ) {
serializeNode( child );
child = child.getNextSibling();
}
return;
}
default: {
// fall through
}
}
}
checkUnboundNamespacePrefixedNode(node);
_printer.printText("&");
_printer.printText(node.getNodeName());
_printer.printText(";");
}
else {
child = node.getFirstChild();
while ( child != null ) {
serializeNode( child );
child = child.getNextSibling();
}
}
break;
}
case Node.PROCESSING_INSTRUCTION_NODE : {
if (fDOMFilter !=null &&
(fDOMFilter.getWhatToShow() & NodeFilter.SHOW_PROCESSING_INSTRUCTION)!= 0) {
short code = fDOMFilter.acceptNode(node);
switch (code) {
case NodeFilter.FILTER_REJECT:
case NodeFilter.FILTER_SKIP: {
return; // skip this node
}
default: { // fall through
}
}
}
processingInstructionIO( node.getNodeName(), node.getNodeValue() );
break;
}
case Node.ELEMENT_NODE : {
if (fDOMFilter !=null &&
(fDOMFilter.getWhatToShow() & NodeFilter.SHOW_ELEMENT)!= 0) {
short code = fDOMFilter.acceptNode(node);
switch (code) {
case NodeFilter.FILTER_REJECT: {
return;
}
case NodeFilter.FILTER_SKIP: {
Node child = node.getFirstChild();
while ( child != null ) {
serializeNode( child );
child = child.getNextSibling();
}
return; // skip this node
}
default: { // fall through
}
}
}
serializeElement( (Element) node );
break;
}
case Node.DOCUMENT_NODE : {
DocumentType docType;
DOMImplementation domImpl;
NamedNodeMap map;
Entity entity;
Notation notation;
int i;
serializeDocument();
// If there is a document type, use the SAX events to
// serialize it.
docType = ( (Document) node ).getDoctype();
if (docType != null) {
// DOM Level 2 (or higher)
domImpl = ( (Document) node ).getImplementation();
try {
String internal;
_printer.enterDTD();
_docTypePublicId = docType.getPublicId();
_docTypeSystemId = docType.getSystemId();
internal = docType.getInternalSubset();
if ( internal != null && internal.length() > 0 )
_printer.printText( internal );
endDTD();
}
// DOM Level 1 -- does implementation have methods?
catch (NoSuchMethodError nsme) {
Class docTypeClass = docType.getClass();
String docTypePublicId = null;
String docTypeSystemId = null;
try {
java.lang.reflect.Method getPublicId = docTypeClass.getMethod("getPublicId", (Class[]) null);
if (getPublicId.getReturnType().equals(String.class)) {
docTypePublicId = (String)getPublicId.invoke(docType, (Object[]) null);
}
}
catch (Exception e) {
// ignore
}
try {
java.lang.reflect.Method getSystemId = docTypeClass.getMethod("getSystemId", (Class[]) null);
if (getSystemId.getReturnType().equals(String.class)) {
docTypeSystemId = (String)getSystemId.invoke(docType, (Object[]) null);
}
}
catch (Exception e) {
// ignore
}
_printer.enterDTD();
_docTypePublicId = docTypePublicId;
_docTypeSystemId = docTypeSystemId;
endDTD();
}
serializeDTD(docType.getName());
}
_started = true;
// !! Fall through
}
case Node.DOCUMENT_FRAGMENT_NODE : {
Node child;
// By definition this will happen if the node is a document,
// document fragment, etc. Just serialize its contents. It will
// work well for other nodes that we do not know how to serialize.
child = node.getFirstChild();
while ( child != null ) {
serializeNode( child );
child = child.getNextSibling();
}
break;
}
default:
break;
}
}
/* Serializes XML Declaration, according to 'xml-declaration' property.
*/
protected void serializeDocument()throws IOException {
int i;
String dtd = _printer.leaveDTD();
if (! _started) {
if (! _format.getOmitXMLDeclaration()) {
StringBuffer buffer;
// Serialize the document declaration appreaing at the head
// of very XML document (unless asked not to).
buffer = new StringBuffer( "<?xml version=\"" );
if (_format.getVersion() != null)
buffer.append( _format.getVersion() );
else
buffer.append( "1.0" );
buffer.append( '"' );
String format_encoding = _format.getEncoding();
if (format_encoding != null) {
buffer.append( " encoding=\"" );
buffer.append( format_encoding );
buffer.append( '"' );
}
if (_format.getStandalone() && _docTypeSystemId == null &&
_docTypePublicId == null)
buffer.append( " standalone=\"yes\"" );
buffer.append( "?>" );
_printer.printText( buffer );
_printer.breakLine();
}
}
// Always serialize these, even if not te first root element.
serializePreRoot();
}
/* Serializes DTD, if present.
*/
protected void serializeDTD(String name) throws IOException{
String dtd = _printer.leaveDTD();
if (! _format.getOmitDocumentType()) {
if (_docTypeSystemId != null) {
// System identifier must be specified to print DOCTYPE.
// If public identifier is specified print 'PUBLIC
// <public>
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