org.apache.xml.serialize.XMLSerializer Maven / Gradle / Ivy
Show all versions of com.liferay.saml.opensaml.integration Show documentation
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 problem with namespace handling. Contributed by
// David Blondeau
// Sep 14, 2000:
// Fixed serializer to report IO exception directly, instead at
// the end of document processing.
// Reported by Patrick Higgins
// Aug 21, 2000:
// Fixed bug in startDocument not calling prepare.
// Reported by Mikael Staldal
// Aug 21, 2000:
// Added ability to omit DOCTYPE declaration.
package org.apache.xml.serialize;
import java.io.IOException;
import java.io.OutputStream;
import java.io.Writer;
import java.util.Iterator;
import java.util.Map;
import org.apache.xerces.dom.DOMMessageFormatter;
import org.apache.xerces.util.NamespaceSupport;
import org.apache.xerces.util.SymbolTable;
import org.apache.xerces.util.XMLChar;
import org.apache.xerces.util.XMLSymbols;
import org.apache.xerces.xni.NamespaceContext;
import org.w3c.dom.Attr;
import org.w3c.dom.DOMError;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.traversal.NodeFilter;
import org.xml.sax.AttributeList;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;
/**
* Implements an XML serializer supporting both DOM and SAX pretty
* serializing. For usage instructions see {@link Serializer}.
*
* If an output stream is used, the encoding is taken from the
* output format (defaults to UTF-8). If a writer is
* used, make sure the writer uses the same encoding (if applies)
* as specified in the output format.
*
* The serializer supports both DOM and SAX. SAX serializing is done by firing
* SAX events and using the serializer as a document handler. DOM serializing is done
* by calling {@link #serialize(Document)} or by using DOM Level 3
* {@link org.w3c.dom.ls.LSSerializer} and
* serializing with {@link org.w3c.dom.ls.LSSerializer#write},
* {@link org.w3c.dom.ls.LSSerializer#writeToString}.
*
* 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}.
*
* 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.
*
* @deprecated This class was deprecated in Xerces 2.9.0. It is recommended
* that new applications use the DOM Level 3 LSSerializer or JAXP's Transformation
* API for XML (TrAX) for serializing XML. See the Xerces documentation for more
* information.
* @author Assaf Arkin
* @author Rahul Srivastava
* @author Elena Litani IBM
* @version $Revision: 704573 $ $Date: 2008-10-14 21:41:22 +0530 (Tue, 14 Oct 2008) $
* @see Serializer
*/
public class XMLSerializer
extends BaseMarkupSerializer {
//
// constants
//
protected static final boolean DEBUG = false;
//
// data
//
//
// DOM Level 3 implementation: variables intialized in DOMSerializerImpl
//
/** stores namespaces in scope */
protected NamespaceSupport fNSBinder;
/** stores all namespace bindings on the current element */
protected NamespaceSupport fLocalNSBinder;
/** symbol table for serialization */
protected SymbolTable fSymbolTable;
protected final static String PREFIX = "NS";
/**
* Controls whether namespace fixup should be performed during
* the serialization.
* NOTE: if this field is set to true the following
* fields need to be initialized: fNSBinder, fLocalNSBinder, fSymbolTable,
* XMLSymbols.EMPTY_STRING, fXmlSymbol, fXmlnsSymbol
*/
protected boolean fNamespaces = false;
/**
* Controls whether namespace prefixes will be printed out during serialization
*/
protected boolean fNamespacePrefixes = true;
private boolean fPreserveSpace;
/**
* Constructs a new serializer. The serializer cannot be used without
* calling {@link #setOutputCharStream} or {@link #setOutputByteStream}
* first.
*/
public XMLSerializer() {
super( new OutputFormat( Method.XML, null, false ) );
}
/**
* Constructs a new serializer. The serializer cannot be used without
* calling {@link #setOutputCharStream} or {@link #setOutputByteStream}
* first.
*/
public XMLSerializer( OutputFormat format ) {
super( format != null ? format : new OutputFormat( Method.XML, null, false ) );
_format.setMethod( Method.XML );
}
/**
* Constructs a new serializer that writes to the specified writer
* using the specified output format. If format is null,
* will use a default output format.
*
* @param writer The writer to use
* @param format The output format to use, null for the default
*/
public XMLSerializer( Writer writer, OutputFormat format ) {
super( format != null ? format : new OutputFormat( Method.XML, null, false ) );
_format.setMethod( Method.XML );
setOutputCharStream( writer );
}
/**
* Constructs a new serializer that writes to the specified output
* stream using the specified output format. If format
* is null, will use a default output format.
*
* @param output The output stream to use
* @param format The output format to use, null for the default
*/
public XMLSerializer( OutputStream output, OutputFormat format ) {
super( format != null ? format : new OutputFormat( Method.XML, null, false ) );
_format.setMethod( Method.XML );
setOutputByteStream( output );
}
public void setOutputFormat( OutputFormat format ) {
super.setOutputFormat( format != null ? format : new OutputFormat( Method.XML, null, false ) );
}
/**
* This methods turns on namespace fixup algorithm during
* DOM serialization.
* @see org.w3c.dom.ls.LSSerializer
*
* @param namespaces
*/
public void setNamespaces (boolean namespaces){
fNamespaces = namespaces;
if (fNSBinder == null) {
fNSBinder = new NamespaceSupport();
fLocalNSBinder = new NamespaceSupport();
fSymbolTable = new SymbolTable();
}
}
//-----------------------------------------//
// SAX content handler serializing methods //
//-----------------------------------------//
public void startElement( String namespaceURI, String localName,
String rawName, Attributes attrs )
throws SAXException
{
int i;
boolean preserveSpace;
ElementState state;
String name;
String value;
if (DEBUG) {
System.out.println("==>startElement("+namespaceURI+","+localName+
","+rawName+")");
}
try {
if (_printer == null) {
String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.SERIALIZER_DOMAIN, "NoWriterSupplied", null);
throw new IllegalStateException(msg);
}
state = getElementState();
if (isDocumentState()) {
// If this is the root element handle it differently.
// If the first root element in the document, serialize
// the document's DOCTYPE. Space preserving defaults
// to that of the output format.
if (! _started)
startDocument( ( localName == null || localName.length() == 0 ) ? rawName : localName );
} else {
// For any other element, if first in parent, then
// close parent's opening tag and use the parnet's
// space preserving.
if (state.empty)
_printer.printText( '>' );
// Must leave CData section first
if (state.inCData) {
_printer.printText( "]]>" );
state.inCData = false;
}
// Indent this element on a new line if the first
// content of the parent element or immediately
// following an element or a comment
if (_indenting && ! state.preserveSpace &&
( state.empty || state.afterElement || state.afterComment))
_printer.breakLine();
}
preserveSpace = state.preserveSpace;
//We remove the namespaces from the attributes list so that they will
//be in _prefixes
attrs = extractNamespaces(attrs);
// Do not change the current element state yet.
// This only happens in endElement().
if (rawName == null || rawName.length() == 0) {
if (localName == null) {
String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.SERIALIZER_DOMAIN, "NoName", null);
throw new SAXException(msg);
}
if (namespaceURI != null && ! namespaceURI.equals( "" )) {
String prefix;
prefix = getPrefix( namespaceURI );
if (prefix != null && prefix.length() > 0) {
rawName = prefix + ":" + localName;
}
else {
rawName = localName;
}
}
else {
rawName = localName;
}
}
_printer.printText( '<' );
_printer.printText( rawName );
_printer.indent();
// For each attribute print it's name and value as one part,
// separated with a space so the element can be broken on
// multiple lines.
if (attrs != null) {
for (i = 0 ; i < attrs.getLength() ; ++i) {
_printer.printSpace();
name = attrs.getQName( i );
if (name != null && name.length() == 0) {
String prefix;
String attrURI;
name = attrs.getLocalName( i );
attrURI = attrs.getURI( i );
if (( attrURI != null && attrURI.length() != 0 ) &&
( namespaceURI == null || namespaceURI.length() == 0 ||
! attrURI.equals( namespaceURI ) )) {
prefix = getPrefix( attrURI );
if (prefix != null && prefix.length() > 0)
name = prefix + ":" + name;
}
}
value = attrs.getValue( i );
if (value == null)
value = "";
_printer.printText( name );
_printer.printText( "=\"" );
printEscaped( value );
_printer.printText( '"' );
// If the attribute xml:space exists, determine whether
// to preserve spaces in this and child nodes based on
// its value.
if (name.equals( "xml:space" )) {
if (value.equals( "preserve" ))
preserveSpace = true;
else
preserveSpace = _format.getPreserveSpace();
}
}
}
if (_prefixes != null) {
Iterator entries = _prefixes.entrySet().iterator();
while (entries.hasNext()) {
_printer.printSpace();
Map.Entry entry = (Map.Entry) entries.next();
value = (String) entry.getKey();
name = (String) entry.getValue();
if (name.length() == 0) {
_printer.printText( "xmlns=\"" );
printEscaped( value );
_printer.printText( '"' );
}
else {
_printer.printText( "xmlns:" );
_printer.printText( name );
_printer.printText( "=\"" );
printEscaped( value );
_printer.printText( '"' );
}
}
}
// Now it's time to enter a new element state
// with the tag name and space preserving.
// We still do not change the curent element state.
state = enterElementState( namespaceURI, localName, rawName, preserveSpace );
name = ( localName == null || localName.length() == 0 ) ? rawName : namespaceURI + "^" + localName;
state.doCData = _format.isCDataElement( name );
state.unescaped = _format.isNonEscapingElement( name );
} catch (IOException except) {
throw new SAXException( except );
}
}
public void endElement( String namespaceURI, String localName,
String rawName )
throws SAXException
{
try {
endElementIO( namespaceURI, localName, rawName );
} catch (IOException except) {
throw new SAXException( except );
}
}
public void endElementIO( String namespaceURI, String localName,
String rawName )
throws IOException
{
ElementState state;
if (DEBUG) {
System.out.println("==>endElement: " +rawName);
}
// Works much like content() with additions for closing
// an element. Note the different checks for the closed
// element's state and the parent element's state.
_printer.unindent();
state = getElementState();
if (state.empty) {
_printer.printText( "/>" );
} else {
// Must leave CData section first
if (state.inCData)
_printer.printText( "]]>" );
// This element is not empty and that last content was
// another element, so print a line break before that
// last element and this element's closing tag.
if (_indenting && ! state.preserveSpace && (state.afterElement || state.afterComment))
_printer.breakLine();
_printer.printText( "' );
}
// Leave the element state and update that of the parent
// (if we're not root) to not empty and after element.
state = leaveElementState();
state.afterElement = true;
state.afterComment = false;
state.empty = false;
if (isDocumentState())
_printer.flush();
}
//------------------------------------------//
// SAX document handler serializing methods //
//------------------------------------------//
public void startElement( String tagName, AttributeList attrs )
throws SAXException
{
int i;
boolean preserveSpace;
ElementState state;
String name;
String value;
if (DEBUG) {
System.out.println("==>startElement("+tagName+")");
}
try {
if (_printer == null) {
String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.SERIALIZER_DOMAIN, "NoWriterSupplied", null);
throw new IllegalStateException(msg);
}
state = getElementState();
if (isDocumentState()) {
// If this is the root element handle it differently.
// If the first root element in the document, serialize
// the document's DOCTYPE. Space preserving defaults
// to that of the output format.
if (! _started)
startDocument( tagName );
} else {
// For any other element, if first in parent, then
// close parent's opening tag and use the parnet's
// space preserving.
if (state.empty)
_printer.printText( '>' );
// Must leave CData section first
if (state.inCData) {
_printer.printText( "]]>" );
state.inCData = false;
}
// Indent this element on a new line if the first
// content of the parent element or immediately
// following an element.
if (_indenting && ! state.preserveSpace &&
( state.empty || state.afterElement || state.afterComment))
_printer.breakLine();
}
preserveSpace = state.preserveSpace;
// Do not change the current element state yet.
// This only happens in endElement().
_printer.printText( '<' );
_printer.printText( tagName );
_printer.indent();
// For each attribute print it's name and value as one part,
// separated with a space so the element can be broken on
// multiple lines.
if (attrs != null) {
for (i = 0 ; i < attrs.getLength() ; ++i) {
_printer.printSpace();
name = attrs.getName( i );
value = attrs.getValue( i );
if (value != null) {
_printer.printText( name );
_printer.printText( "=\"" );
printEscaped( value );
_printer.printText( '"' );
}
// If the attribute xml:space exists, determine whether
// to preserve spaces in this and child nodes based on
// its value.
if (name.equals( "xml:space" )) {
if (value.equals( "preserve" ))
preserveSpace = true;
else
preserveSpace = _format.getPreserveSpace();
}
}
}
// Now it's time to enter a new element state
// with the tag name and space preserving.
// We still do not change the curent element state.
state = enterElementState( null, null, tagName, preserveSpace );
state.doCData = _format.isCDataElement( tagName );
state.unescaped = _format.isNonEscapingElement( tagName );
} catch (IOException except) {
throw new SAXException( except );
}
}
public void endElement( String tagName )
throws SAXException
{
endElement( null, null, tagName );
}
//------------------------------------------//
// Generic node serializing methods methods //
//------------------------------------------//
/**
* Called to serialize the document's DOCTYPE by the root element.
* The document type declaration must name the root element,
* but the root element is only known when that element is serialized,
* and not at the start of the document.
*
* This method will check if it has not been called before ({@link #_started}),
* will serialize the document type declaration, and will serialize all
* pre-root comments and PIs that were accumulated in the document
* (see {@link #serializePreRoot}). Pre-root will be serialized even if
* this is not the first root element of the document.
*/
protected void startDocument( String rootTagName )
throws IOException
{
int i;
String dtd;
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( "" );
_printer.printText( buffer );
_printer.breakLine();
}
if (! _format.getOmitDocumentType()) {
if (_docTypeSystemId != null) {
// System identifier must be specified to print DOCTYPE.
// If public identifier is specified print 'PUBLIC
// ', if not, print 'SYSTEM '.
_printer.printText( " 0) {
_printer.printText( " [" );
printText( dtd, true, true );
_printer.printText( ']' );
}
_printer.printText( ">" );
_printer.breakLine();
} else if (dtd != null && dtd.length() > 0) {
_printer.printText( "" );
_printer.breakLine();
}
}
}
_started = true;
// Always serialize these, even if not te first root element.
serializePreRoot();
}
/**
* Called to serialize a DOM element. Equivalent to calling {@link
* #startElement}, {@link #endElement} and serializing everything
* inbetween, but better optimized.
*/
protected void serializeElement( Element elem )
throws IOException
{
Attr attr;
NamedNodeMap attrMap;
int i;
Node child;
ElementState state;
String name;
String value;
String tagName;
String prefix, localUri;
String uri;
if (fNamespaces) {
// local binder stores namespace declaration
// that has been printed out during namespace fixup of
// the current element
fLocalNSBinder.reset();
// add new namespace context
fNSBinder.pushContext();
}
if (DEBUG) {
System.out.println("==>startElement: " +elem.getNodeName() +" ns="+elem.getNamespaceURI());
}
tagName = elem.getTagName();
state = getElementState();
if (isDocumentState()) {
// If this is the root element handle it differently.
// If the first root element in the document, serialize
// the document's DOCTYPE. Space preserving defaults
// to that of the output format.
if (! _started) {
startDocument( tagName);
}
} else {
// For any other element, if first in parent, then
// close parent's opening tag and use the parent's
// space preserving.
if (state.empty)
_printer.printText( '>' );
// Must leave CData section first
if (state.inCData) {
_printer.printText( "]]>" );
state.inCData = false;
}
// Indent this element on a new line if the first
// content of the parent element or immediately
// following an element.
if (_indenting && ! state.preserveSpace &&
( state.empty || state.afterElement || state.afterComment))
_printer.breakLine();
}
// Do not change the current element state yet.
// This only happens in endElement().
fPreserveSpace = state.preserveSpace;
int length = 0;
attrMap = null;
// retrieve attributes
if (elem.hasAttributes()) {
attrMap = elem.getAttributes();
length = attrMap.getLength();
}
if (!fNamespaces) { // no namespace fixup should be performed
// serialize element name
_printer.printText( '<' );
_printer.printText( tagName );
_printer.indent();
// For each attribute print it's name and value as one part,
// separated with a space so the element can be broken on
// multiple lines.
for ( i = 0 ; i < length ; ++i ) {
attr = (Attr) attrMap.item( i );
name = attr.getName();
value = attr.getValue();
if ( value == null )
value = "";
printAttribute (name, value, attr.getSpecified(), attr);
}
} else { // do namespace fixup
// REVISIT: some optimization could probably be done to avoid traversing
// attributes twice.
//
// ---------------------------------------
// record all valid namespace declarations
// before attempting to fix element's namespace
// ---------------------------------------
for (i = 0;i < length;i++) {
attr = (Attr) attrMap.item( i );
uri = attr.getNamespaceURI();
// check if attribute is a namespace decl
if (uri != null && uri.equals(NamespaceContext.XMLNS_URI)) {
value = attr.getNodeValue();
if (value == null) {
value=XMLSymbols.EMPTY_STRING;
}
if (value.equals(NamespaceContext.XMLNS_URI)) {
if (fDOMErrorHandler != null) {
String msg = DOMMessageFormatter.formatMessage(
DOMMessageFormatter.XML_DOMAIN,"CantBindXMLNS",null );
modifyDOMError(msg, DOMError.SEVERITY_ERROR, null, attr);
boolean continueProcess = fDOMErrorHandler.handleError(fDOMError);
if (!continueProcess) {
// stop the namespace fixup and validation
throw new RuntimeException(
DOMMessageFormatter.formatMessage(
DOMMessageFormatter.SERIALIZER_DOMAIN,
"SerializationStopped", null));
}
}
} else {
prefix = attr.getPrefix();
prefix = (prefix == null ||
prefix.length() == 0) ? XMLSymbols.EMPTY_STRING :fSymbolTable.addSymbol(prefix);
String localpart = fSymbolTable.addSymbol( attr.getLocalName());
if (prefix == XMLSymbols.PREFIX_XMLNS) { //xmlns:prefix
value = fSymbolTable.addSymbol(value);
// record valid decl
if (value.length() != 0) {
fNSBinder.declarePrefix(localpart, value);
} else {
// REVISIT: issue error on invalid declarations
// xmlns:foo = ""
}
continue;
}
// xmlns --- empty prefix is always bound ("" or some string)
value = fSymbolTable.addSymbol(value);
fNSBinder.declarePrefix(XMLSymbols.EMPTY_STRING, value);
continue;
} // end-else: valid declaration
} // end-if: namespace declaration
} // end-for
//-----------------------
// get element uri/prefix
//-----------------------
uri = elem.getNamespaceURI();
prefix = elem.getPrefix();
//----------------------
// output element name
//----------------------
// REVISIT: this could be removed if we always convert empty string to null
// for the namespaces.
if ((uri !=null && prefix !=null ) && uri.length() == 0 && prefix.length()!=0) {
// uri is an empty string and element has some prefix
// the namespace alg later will fix up the namespace attributes
// remove element prefix
prefix = null;
_printer.printText( '<' );
_printer.printText( elem.getLocalName() );
_printer.indent();
} else {
_printer.printText( '<' );
_printer.printText( tagName );
_printer.indent();
}
// ---------------------------------------------------------
// Fix up namespaces for element: per DOM L3
// Need to consider the following cases:
//
// case 1:
// We create another element body bound to the "http://xsl" namespace
// as well as namespace attribute rebounding xsl to another namespace.
//
// Need to make sure that the new namespace decl value is changed to
// "http://xsl"
//
// ---------------------------------------------------------
// check if prefix/namespace is correct for current element
// ---------------------------------------------------------
if (uri != null) { // Element has a namespace
uri = fSymbolTable.addSymbol(uri);
prefix = (prefix == null ||
prefix.length() == 0) ? XMLSymbols.EMPTY_STRING :fSymbolTable.addSymbol(prefix);
if (fNSBinder.getURI(prefix) == uri) {
// The xmlns:prefix=namespace or xmlns="default" was declared at parent.
// The binder always stores mapping of empty prefix to "".
// (NOTE: local binder does not store this kind of binding!)
// Thus the case where element was declared with uri="" (with or without a prefix)
// will be covered here.
} else {
// the prefix is either undeclared
// or
// conflict: the prefix is bound to another URI
if (fNamespacePrefixes) {
printNamespaceAttr(prefix, uri);
}
fLocalNSBinder.declarePrefix(prefix, uri);
fNSBinder.declarePrefix(prefix, uri);
}
} else { // Element has no namespace
if (elem.getLocalName() == null) {
// DOM Level 1 node!
if (fDOMErrorHandler != null) {
String msg = DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN, "NullLocalElementName",
new Object[]{elem.getNodeName()});
modifyDOMError(msg,DOMError.SEVERITY_ERROR, null, elem);
boolean continueProcess = fDOMErrorHandler.handleError(fDOMError);
// REVISIT: should we terminate upon request?
if (!continueProcess) {
throw new RuntimeException(
DOMMessageFormatter.formatMessage(
DOMMessageFormatter.SERIALIZER_DOMAIN,
"SerializationStopped", null));
}
}
} else { // uri=null and no colon (DOM L2 node)
uri = fNSBinder.getURI(XMLSymbols.EMPTY_STRING);
if (uri !=null && uri.length() > 0) {
// there is a default namespace decl that is bound to
// non-zero length uri, output xmlns=""
if (fNamespacePrefixes) {
printNamespaceAttr(XMLSymbols.EMPTY_STRING, XMLSymbols.EMPTY_STRING);
}
fLocalNSBinder.declarePrefix(XMLSymbols.EMPTY_STRING, XMLSymbols.EMPTY_STRING);
fNSBinder.declarePrefix(XMLSymbols.EMPTY_STRING, XMLSymbols.EMPTY_STRING);
}
}
}
// -----------------------------------------
// Fix up namespaces for attributes: per DOM L3
// check if prefix/namespace is correct the attributes
// -----------------------------------------
for (i = 0; i < length; i++) {
attr = (Attr) attrMap.item( i );
value = attr.getValue();
name = attr.getNodeName();
uri = attr.getNamespaceURI();
// Fix attribute that was declared with a prefix and namespace=""
if (uri !=null && uri.length() == 0) {
uri=null;
// we must remove prefix for this attribute
name=attr.getLocalName();
}
if (DEBUG) {
System.out.println("==>process attribute: "+attr.getNodeName());
}
// make sure that value is never null.
if (value == null) {
value=XMLSymbols.EMPTY_STRING;
}
if (uri != null) { // attribute has namespace !=null
prefix = attr.getPrefix();
prefix = prefix == null ? XMLSymbols.EMPTY_STRING :fSymbolTable.addSymbol(prefix);
String localpart = fSymbolTable.addSymbol( attr.getLocalName());
// ---------------------------------------------------
// print namespace declarations namespace declarations
// ---------------------------------------------------
if (uri != null && uri.equals(NamespaceContext.XMLNS_URI)) {
// check if we need to output this declaration
prefix = attr.getPrefix();
prefix = (prefix == null ||
prefix.length() == 0) ? XMLSymbols.EMPTY_STRING : fSymbolTable.addSymbol(prefix);
localpart = fSymbolTable.addSymbol( attr.getLocalName());
if (prefix == XMLSymbols.PREFIX_XMLNS) { //xmlns:prefix
localUri = fLocalNSBinder.getURI(localpart); // local prefix mapping
value = fSymbolTable.addSymbol(value);
if (value.length() != 0 ) {
if (localUri == null) {
// declaration was not printed while fixing element namespace binding
// If the DOM Level 3 namespace-prefixes feature is set to false
// do not print xmlns attributes
if (fNamespacePrefixes) {
printNamespaceAttr(localpart, value);
}
// case 4: 0 ) {
char ch = chars[start++];
if (!XMLChar.isValid(ch)) {
// check if it is surrogate
if ( length-- > 0 ) {
surrogates(ch, chars[start++], true);
}
else {
fatalError("The character '"+ch+"' is an invalid XML character");
}
continue;
}
if ( unescaped ) {
_printer.printText( ch );
}
else {
printXMLChar( ch );
}
}
} else {
// Not preserving spaces: print one part at a time, and
// use spaces between parts to break them into different
// lines. Spaces at beginning of line will be stripped
// by printing mechanism. Line terminator is treated
// no different than other text part.
while ( length-- > 0 ) {
char ch = chars[start++];
if (!XMLChar.isValid(ch)) {
// check if it is surrogate
if ( length-- > 0 ) {
surrogates(ch, chars[start++], true);
}
else {
fatalError("The character '"+ch+"' is an invalid XML character");
}
continue;
}
if ( unescaped ) {
_printer.printText( ch );
}
else {
printXMLChar( ch );
}
}
}
}
/**
* DOM Level 3:
* Check a node to determine if it contains unbound namespace prefixes.
*
* @param node The node to check for unbound namespace prefices
*/
protected void checkUnboundNamespacePrefixedNode (Node node) throws IOException{
if (fNamespaces) {
if (DEBUG) {
System.out.println("==>serializeNode("+node.getNodeName()+") [Entity Reference - Namespaces on]");
System.out.println("==>Declared Prefix Count: " + fNSBinder.getDeclaredPrefixCount());
System.out.println("==>Node Name: " + node.getNodeName());
System.out.println("==>First Child Node Name: " + node.getFirstChild().getNodeName());
System.out.println("==>First Child Node Prefix: " + node.getFirstChild().getPrefix());
System.out.println("==>First Child Node NamespaceURI: " + node.getFirstChild().getNamespaceURI());
}
Node child, next;
for (child = node.getFirstChild(); child != null; child = next) {
next = child.getNextSibling();
if (DEBUG) {
System.out.println("==>serializeNode("+child.getNodeName()+") [Child Node]");
System.out.println("==>serializeNode("+child.getPrefix()+") [Child Node Prefix]");
}
//If a NamespaceURI is not declared for the current
//node's prefix, raise a fatal error.
String prefix = child.getPrefix();
prefix = (prefix == null ||
prefix.length() == 0) ? XMLSymbols.EMPTY_STRING : fSymbolTable.addSymbol(prefix);
if (fNSBinder.getURI(prefix) == null && prefix != null) {
fatalError("The replacement text of the entity node '"
+ node.getNodeName()
+ "' contains an element node '"
+ child.getNodeName()
+ "' with an undeclared prefix '"
+ prefix + "'.");
}
if (child.getNodeType() == Node.ELEMENT_NODE) {
NamedNodeMap attrs = child.getAttributes();
for (int i = 0; i< attrs.getLength(); i++ ) {
String attrPrefix = attrs.item(i).getPrefix();
attrPrefix = (attrPrefix == null ||
attrPrefix.length() == 0) ? XMLSymbols.EMPTY_STRING : fSymbolTable.addSymbol(attrPrefix);
if (fNSBinder.getURI(attrPrefix) == null && attrPrefix != null) {
fatalError("The replacement text of the entity node '"
+ node.getNodeName()
+ "' contains an element node '"
+ child.getNodeName()
+ "' with an attribute '"
+ attrs.item(i).getNodeName()
+ "' an undeclared prefix '"
+ attrPrefix + "'.");
}
}
}
if (child.hasChildNodes()) {
checkUnboundNamespacePrefixedNode(child);
}
}
}
}
public boolean reset() {
super.reset();
if (fNSBinder != null){
fNSBinder.reset();
// during serialization always have a mapping to empty string
// so we assume there is a declaration.
fNSBinder.declarePrefix(XMLSymbols.EMPTY_STRING, XMLSymbols.EMPTY_STRING);
}
return true;
}
}