/* * 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. */ /* * $Id: ToUnknownStream.java 471981 2006-11-07 04:28:00Z minchau $ */ package org.apache.xml.serializer; import java.io.IOException; import java.io.OutputStream; import java.io.Writer; import java.util.Properties; import java.util.Vector; import javax.xml.transform.SourceLocator; import javax.xml.transform.Transformer; import org.w3c.dom.Node; import org.xml.sax.Attributes; import org.xml.sax.ContentHandler; import org.xml.sax.Locator; import org.xml.sax.SAXException; /** *This class wraps another SerializationHandler. The wrapped object will either * handler XML or HTML, which is not known until a little later when the first XML * tag is seen. If the first tag is then the wrapped object is an HTML * handler, otherwise it is an XML handler. * * This class effectively caches the first few calls to it then passes them * on to the wrapped handler (once it exists). After that subsequent calls a * simply passed directly to the wrapped handler. * * The user of this class doesn't know if the output is ultimatley XML or HTML. * * This class is not a public API, it is public because it is used within Xalan. * @xsl.usage internal */ public final class ToUnknownStream extends SerializerBase { /** * The wrapped handler, initially XML but possibly switched to HTML */ private SerializationHandler m_handler; /** * A String with no characters */ private static final String EMPTYSTRING = ""; /** * true if the underlying handler (XML or HTML) is fully initialized */ private boolean m_wrapped_handler_not_initialized = false; /** * the prefix of the very first tag in the document */ private String m_firstElementPrefix; /** * the element name (including any prefix) of the very first tag in the document */ private String m_firstElementName; /** * the namespace URI associated with the first element */ private String m_firstElementURI; /** * the local name (no prefix) associated with the first element */ private String m_firstElementLocalName = null; /** * true if the first tag has been emitted to the wrapped handler */ private boolean m_firstTagNotEmitted = true; /** * A collection of namespace URI's (only for first element). * _namespacePrefix has the matching prefix for these URI's */ private Vector m_namespaceURI = null; /** * A collection of namespace Prefix (only for first element) * _namespaceURI has the matching URIs for these prefix' */ private Vector m_namespacePrefix = null; /** * true if startDocument() was called before the underlying handler * was initialized */ private boolean m_needToCallStartDocument = false; /** * true if setVersion() was called before the underlying handler * was initialized */ private boolean m_setVersion_called = false; /** * true if setDoctypeSystem() was called before the underlying handler * was initialized */ private boolean m_setDoctypeSystem_called = false; /** * true if setDoctypePublic() was called before the underlying handler * was initialized */ private boolean m_setDoctypePublic_called = false; /** * true if setMediaType() was called before the underlying handler * was initialized */ private boolean m_setMediaType_called = false; /** * Default constructor. * Initially this object wraps an XML Stream object, so _handler is never null. * That may change later to an HTML Stream object. */ public ToUnknownStream() { m_handler = new ToXMLStream(); } /** * @see Serializer#asContentHandler() * @return the wrapped XML or HTML handler */ public ContentHandler asContentHandler() throws IOException { /* don't return the real handler ( m_handler ) because * that would expose the real handler to the outside. * Keep m_handler private so it can be internally swapped * to an HTML handler. */ return this; } /** * @see SerializationHandler#close() */ public void close() { m_handler.close(); } /** * @see Serializer#getOutputFormat() * @return the properties of the underlying handler */ public Properties getOutputFormat() { return m_handler.getOutputFormat(); } /** * @see Serializer#getOutputStream() * @return the OutputStream of the underlying XML or HTML handler */ public OutputStream getOutputStream() { return m_handler.getOutputStream(); } /** * @see Serializer#getWriter() * @return the Writer of the underlying XML or HTML handler */ public Writer getWriter() { return m_handler.getWriter(); } /** * passes the call on to the underlying HTML or XML handler * @see Serializer#reset() * @return ??? */ public boolean reset() { return m_handler.reset(); } /** * Converts the DOM node to output * @param node the DOM node to transform to output * @see DOMSerializer#serialize(Node) * */ public void serialize(Node node) throws IOException { if (m_firstTagNotEmitted) { flush(); } m_handler.serialize(node); } /** * @see SerializationHandler#setEscaping(boolean) */ public boolean setEscaping(boolean escape) throws SAXException { return m_handler.setEscaping(escape); } /** * Set the properties of the handler * @param format the output properties to set * @see Serializer#setOutputFormat(Properties) */ public void setOutputFormat(Properties format) { m_handler.setOutputFormat(format); } /** * Sets the output stream to write to * @param output the OutputStream to write to * @see Serializer#setOutputStream(OutputStream) */ public void setOutputStream(OutputStream output) { m_handler.setOutputStream(output); } /** * Sets the writer to write to * @param writer the writer to write to * @see Serializer#setWriter(Writer) */ public void setWriter(Writer writer) { m_handler.setWriter(writer); } /** * Adds an attribute to the currenly open tag * @param uri the URI of a namespace * @param localName the attribute name, without prefix * @param rawName the attribute name, with prefix (if any) * @param type the type of the attribute, typically "CDATA" * @param value the value of the parameter * @param XSLAttribute true if this attribute is coming from an xsl:attribute element * @see ExtendedContentHandler#addAttribute(String, String, String, String, String) */ public void addAttribute( String uri, String localName, String rawName, String type, String value, boolean XSLAttribute) throws SAXException { if (m_firstTagNotEmitted) { flush(); } m_handler.addAttribute(uri, localName, rawName, type, value, XSLAttribute); } /** * Adds an attribute to the currenly open tag * @param rawName the attribute name, with prefix (if any) * @param value the value of the parameter * @see ExtendedContentHandler#addAttribute(String, String) */ public void addAttribute(String rawName, String value) { if (m_firstTagNotEmitted) { flush(); } m_handler.addAttribute(rawName, value); } /** * Adds a unique attribute to the currenly open tag */ public void addUniqueAttribute(String rawName, String value, int flags) throws SAXException { if (m_firstTagNotEmitted) { flush(); } m_handler.addUniqueAttribute(rawName, value, flags); } /** * Converts the String to a character array and calls the SAX method * characters(char[],int,int); * * @see ExtendedContentHandler#characters(String) */ public void characters(String chars) throws SAXException { final int length = chars.length(); if (length > m_charsBuff.length) { m_charsBuff = new char[length*2 + 1]; } chars.getChars(0, length, m_charsBuff, 0); this.characters(m_charsBuff, 0, length); } /** * Pass the call on to the underlying handler * @see ExtendedContentHandler#endElement(String) */ public void endElement(String elementName) throws SAXException { if (m_firstTagNotEmitted) { flush(); } m_handler.endElement(elementName); } /** * @see org.xml.sax.ContentHandler#startPrefixMapping(String, String) * @param prefix The prefix that maps to the URI * @param uri The URI for the namespace */ public void startPrefixMapping(String prefix, String uri) throws SAXException { this.startPrefixMapping(prefix,uri, true); } /** * This method is used when a prefix/uri namespace mapping * is indicated after the element was started with a * startElement() and before and endElement(). * startPrefixMapping(prefix,uri) would be used before the * startElement() call. * @param uri the URI of the namespace * @param prefix the prefix associated with the given URI. * * @see ExtendedContentHandler#namespaceAfterStartElement(String, String) */ public void namespaceAfterStartElement(String prefix, String uri) throws SAXException { // hack for XSLTC with finding URI for default namespace if (m_firstTagNotEmitted && m_firstElementURI == null && m_firstElementName != null) { String prefix1 = getPrefixPart(m_firstElementName); if (prefix1 == null && EMPTYSTRING.equals(prefix)) { // the elements URI is not known yet, and it // doesn't have a prefix, and we are currently // setting the uri for prefix "", so we have // the uri for the element... lets remember it m_firstElementURI = uri; } } startPrefixMapping(prefix,uri, false); } public boolean startPrefixMapping(String prefix, String uri, boolean shouldFlush) throws SAXException { boolean pushed = false; if (m_firstTagNotEmitted) { if (m_firstElementName != null && shouldFlush) { /* we've already seen a startElement, and this is a prefix mapping * for the up coming element, so flush the old element * then send this event on its way. */ flush(); pushed = m_handler.startPrefixMapping(prefix, uri, shouldFlush); } else { if (m_namespacePrefix == null) { m_namespacePrefix = new Vector(); m_namespaceURI = new Vector(); } m_namespacePrefix.addElement(prefix); m_namespaceURI.addElement(uri); if (m_firstElementURI == null) { if (prefix.equals(m_firstElementPrefix)) m_firstElementURI = uri; } } } else { pushed = m_handler.startPrefixMapping(prefix, uri, shouldFlush); } return pushed; } /** * This method cannot be cached because default is different in * HTML and XML (we need more than a boolean). */ public void setVersion(String version) { m_handler.setVersion(version); // Cache call to setVersion() // super.setVersion(version); m_setVersion_called = true; } /** * @see org.xml.sax.ContentHandler#startDocument() */ public void startDocument() throws SAXException { m_needToCallStartDocument = true; } public void startElement(String qName) throws SAXException { this.startElement(null, null, qName, null); } public void startElement(String namespaceURI, String localName, String qName) throws SAXException { this.startElement(namespaceURI, localName, qName, null); } public void startElement( String namespaceURI, String localName, String elementName, Attributes atts) throws SAXException { /* we are notified of the start of an element */ if (m_firstTagNotEmitted) { /* we have not yet sent the first element on its way */ if (m_firstElementName != null) { /* this is not the first element, but a later one. * But we have the old element pending, so flush it out, * then send this one on its way. */ flush(); m_handler.startElement(namespaceURI, localName, elementName, atts); } else { /* this is the very first element that we have seen, * so save it for flushing later. We may yet get to know its * URI due to added attributes. */ m_wrapped_handler_not_initialized = true; m_firstElementName = elementName; // null if not known m_firstElementPrefix = getPrefixPartUnknown(elementName); // null if not known m_firstElementURI = namespaceURI; // null if not known m_firstElementLocalName = localName; if (m_tracer != null) firePseudoElement(elementName); /* we don't want to call our own addAttributes, which * merely delegates to the wrapped handler, but we want to * add these attributes to m_attributes. So me must call super. * addAttributes() In this case m_attributes is only used for the * first element, after that this class totally delegates to the * wrapped handler which is either XML or HTML. */ if (atts != null) super.addAttributes(atts); // if there are attributes, then lets make the flush() // call the startElement on the handler and send the // attributes on their way. if (atts != null) flush(); } } else { // this is not the first element, but a later one, so just // send it on its way. m_handler.startElement(namespaceURI, localName, elementName, atts); } } /** * Pass the call on to the underlying handler * @see ExtendedLexicalHandler#comment(String) */ public void comment(String comment) throws SAXException { if (m_firstTagNotEmitted && m_firstElementName != null) { emitFirstTag(); } else if (m_needToCallStartDocument) { m_handler.startDocument(); m_needToCallStartDocument = false; } m_handler.comment(comment); } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#getDoctypePublic() */ public String getDoctypePublic() { return m_handler.getDoctypePublic(); } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#getDoctypeSystem() */ public String getDoctypeSystem() { return m_handler.getDoctypeSystem(); } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#getEncoding() */ public String getEncoding() { return m_handler.getEncoding(); } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#getIndent() */ public boolean getIndent() { return m_handler.getIndent(); } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#getIndentAmount() */ public int getIndentAmount() { return m_handler.getIndentAmount(); } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#getMediaType() */ public String getMediaType() { return m_handler.getMediaType(); } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#getOmitXMLDeclaration() */ public boolean getOmitXMLDeclaration() { return m_handler.getOmitXMLDeclaration(); } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#getStandalone() */ public String getStandalone() { return m_handler.getStandalone(); } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#getVersion() */ public String getVersion() { return m_handler.getVersion(); } /** * @see XSLOutputAttributes#setDoctype(String, String) */ public void setDoctype(String system, String pub) { m_handler.setDoctypePublic(pub); m_handler.setDoctypeSystem(system); } /** * Set the doctype in the underlying XML handler. Remember that this method * was called, just in case we need to transfer this doctype to an HTML handler * @param doctype the public doctype to set * @see XSLOutputAttributes#setDoctypePublic(String) */ public void setDoctypePublic(String doctype) { m_handler.setDoctypePublic(doctype); m_setDoctypePublic_called = true; } /** * Set the doctype in the underlying XML handler. Remember that this method * was called, just in case we need to transfer this doctype to an HTML handler * @param doctype the system doctype to set * @see XSLOutputAttributes#setDoctypeSystem(String) */ public void setDoctypeSystem(String doctype) { m_handler.setDoctypeSystem(doctype); m_setDoctypeSystem_called = true; } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#setEncoding(String) */ public void setEncoding(String encoding) { m_handler.setEncoding(encoding); } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#setIndent(boolean) */ public void setIndent(boolean indent) { m_handler.setIndent(indent); } /** * Pass the call on to the underlying handler */ public void setIndentAmount(int value) { m_handler.setIndentAmount(value); } /** * @see XSLOutputAttributes#setMediaType(String) */ public void setMediaType(String mediaType) { m_handler.setMediaType(mediaType); m_setMediaType_called = true; } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#setOmitXMLDeclaration(boolean) */ public void setOmitXMLDeclaration(boolean b) { m_handler.setOmitXMLDeclaration(b); } /** * Pass the call on to the underlying handler * @see XSLOutputAttributes#setStandalone(String) */ public void setStandalone(String standalone) { m_handler.setStandalone(standalone); } /** * @see XSLOutputAttributes#setVersion(String) */ /** * Pass the call on to the underlying handler * @see org.xml.sax.ext.DeclHandler#attributeDecl(String, String, String, String, String) */ public void attributeDecl( String arg0, String arg1, String arg2, String arg3, String arg4) throws SAXException { m_handler.attributeDecl(arg0, arg1, arg2, arg3, arg4); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ext.DeclHandler#elementDecl(String, String) */ public void elementDecl(String arg0, String arg1) throws SAXException { if (m_firstTagNotEmitted) { emitFirstTag(); } m_handler.elementDecl(arg0, arg1); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ext.DeclHandler#externalEntityDecl(String, String, String) */ public void externalEntityDecl( String name, String publicId, String systemId) throws SAXException { if (m_firstTagNotEmitted) { flush(); } m_handler.externalEntityDecl(name, publicId, systemId); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ext.DeclHandler#internalEntityDecl(String, String) */ public void internalEntityDecl(String arg0, String arg1) throws SAXException { if (m_firstTagNotEmitted) { flush(); } m_handler.internalEntityDecl(arg0, arg1); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ContentHandler#characters(char[], int, int) */ public void characters(char[] characters, int offset, int length) throws SAXException { if (m_firstTagNotEmitted) { flush(); } m_handler.characters(characters, offset, length); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ContentHandler#endDocument() */ public void endDocument() throws SAXException { if (m_firstTagNotEmitted) { flush(); } m_handler.endDocument(); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ContentHandler#endElement(String, String, String) */ public void endElement(String namespaceURI, String localName, String qName) throws SAXException { if (m_firstTagNotEmitted) { flush(); if (namespaceURI == null && m_firstElementURI != null) namespaceURI = m_firstElementURI; if (localName == null && m_firstElementLocalName != null) localName = m_firstElementLocalName; } m_handler.endElement(namespaceURI, localName, qName); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ContentHandler#endPrefixMapping(String) */ public void endPrefixMapping(String prefix) throws SAXException { m_handler.endPrefixMapping(prefix); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ContentHandler#ignorableWhitespace(char[], int, int) */ public void ignorableWhitespace(char[] ch, int start, int length) throws SAXException { if (m_firstTagNotEmitted) { flush(); } m_handler.ignorableWhitespace(ch, start, length); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ContentHandler#processingInstruction(String, String) */ public void processingInstruction(String target, String data) throws SAXException { if (m_firstTagNotEmitted) { flush(); } m_handler.processingInstruction(target, data); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ContentHandler#setDocumentLocator(Locator) */ public void setDocumentLocator(Locator locator) { m_handler.setDocumentLocator(locator); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ContentHandler#skippedEntity(String) */ public void skippedEntity(String name) throws SAXException { m_handler.skippedEntity(name); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ext.LexicalHandler#comment(char[], int, int) */ public void comment(char[] ch, int start, int length) throws SAXException { if (m_firstTagNotEmitted) { flush(); } m_handler.comment(ch, start, length); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ext.LexicalHandler#endCDATA() */ public void endCDATA() throws SAXException { m_handler.endCDATA(); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ext.LexicalHandler#endDTD() */ public void endDTD() throws SAXException { m_handler.endDTD(); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ext.LexicalHandler#endEntity(String) */ public void endEntity(String name) throws SAXException { if (m_firstTagNotEmitted) { emitFirstTag(); } m_handler.endEntity(name); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ext.LexicalHandler#startCDATA() */ public void startCDATA() throws SAXException { m_handler.startCDATA(); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ext.LexicalHandler#startDTD(String, String, String) */ public void startDTD(String name, String publicId, String systemId) throws SAXException { m_handler.startDTD(name, publicId, systemId); } /** * Pass the call on to the underlying handler * @see org.xml.sax.ext.LexicalHandler#startEntity(String) */ public void startEntity(String name) throws SAXException { m_handler.startEntity(name); } /** * Initialize the wrapped output stream (XML or HTML). * If the stream handler should be HTML, then replace the XML handler with * an HTML handler. After than send the starting method calls that were cached * to the wrapped handler. * */ private void initStreamOutput() throws SAXException { // Try to rule out if this is an not to be an HTML document based on prefix boolean firstElementIsHTML = isFirstElemHTML(); if (firstElementIsHTML) { // create an HTML output handler, and initialize it // keep a reference to the old handler, ... it will soon be gone SerializationHandler oldHandler = m_handler; /* We have to make sure we get an output properties with the proper * defaults for the HTML method. The easiest way to do this is to * have the OutputProperties class do it. */ Properties htmlProperties = OutputPropertiesFactory.getDefaultMethodProperties(Method.HTML); Serializer serializer = SerializerFactory.getSerializer(htmlProperties); // The factory should be returning a ToStream // Don't know what to do if it doesn't // i.e. the user has over-ridden the content-handler property // for html m_handler = (SerializationHandler) serializer; //m_handler = new ToHTMLStream(); Writer writer = oldHandler.getWriter(); if (null != writer) m_handler.setWriter(writer); else { OutputStream os = oldHandler.getOutputStream(); if (null != os) m_handler.setOutputStream(os); } // need to copy things from the old handler to the new one here // if (_setVersion_called) // { m_handler.setVersion(oldHandler.getVersion()); // } // if (_setDoctypeSystem_called) // { m_handler.setDoctypeSystem(oldHandler.getDoctypeSystem()); // } // if (_setDoctypePublic_called) // { m_handler.setDoctypePublic(oldHandler.getDoctypePublic()); // } // if (_setMediaType_called) // { m_handler.setMediaType(oldHandler.getMediaType()); // } m_handler.setTransformer(oldHandler.getTransformer()); } /* Now that we have a real wrapped handler (XML or HTML) lets * pass any cached calls to it */ // Call startDocument() if necessary if (m_needToCallStartDocument) { m_handler.startDocument(); m_needToCallStartDocument = false; } // the wrapped handler is now fully initialized m_wrapped_handler_not_initialized = false; } private void emitFirstTag() throws SAXException { if (m_firstElementName != null) { if (m_wrapped_handler_not_initialized) { initStreamOutput(); m_wrapped_handler_not_initialized = false; } // Output first tag m_handler.startElement(m_firstElementURI, null, m_firstElementName, m_attributes); // don't need the collected attributes of the first element anymore. m_attributes = null; // Output namespaces of first tag if (m_namespacePrefix != null) { final int n = m_namespacePrefix.size(); for (int i = 0; i < n; i++) { final String prefix = (String) m_namespacePrefix.elementAt(i); final String uri = (String) m_namespaceURI.elementAt(i); m_handler.startPrefixMapping(prefix, uri, false); } m_namespacePrefix = null; m_namespaceURI = null; } m_firstTagNotEmitted = false; } } /** * Utility function for calls to local-name(). * * Don't want to override static function on SerializerBase * So added Unknown suffix to method name. */ private String getLocalNameUnknown(String value) { int idx = value.lastIndexOf(':'); if (idx >= 0) value = value.substring(idx + 1); idx = value.lastIndexOf('@'); if (idx >= 0) value = value.substring(idx + 1); return (value); } /** * Utility function to return prefix * * Don't want to override static function on SerializerBase * So added Unknown suffix to method name. */ private String getPrefixPartUnknown(String qname) { final int index = qname.indexOf(':'); return (index > 0) ? qname.substring(0, index) : EMPTYSTRING; } /** * Determine if the firts element in the document is or * This uses the cached first element name, first element prefix and the * cached namespaces from previous method calls * * @return true if the first element is an opening tag */ private boolean isFirstElemHTML() { boolean isHTML; // is the first tag html, not considering the prefix ? isHTML = getLocalNameUnknown(m_firstElementName).equalsIgnoreCase("html"); // Try to rule out if this is not to be an HTML document based on URI if (isHTML && m_firstElementURI != null && !EMPTYSTRING.equals(m_firstElementURI)) { // the element has a non-trivial namespace isHTML = false; } // Try to rule out if this is an not to be an HTML document based on prefix if (isHTML && m_namespacePrefix != null) { /* the first element has a name of "html", but lets check the prefix. * If the prefix points to a namespace with a URL that is not "" * then the doecument doesn't start with an tag, and isn't html */ final int max = m_namespacePrefix.size(); for (int i = 0; i < max; i++) { final String prefix = (String) m_namespacePrefix.elementAt(i); final String uri = (String) m_namespaceURI.elementAt(i); if (m_firstElementPrefix != null && m_firstElementPrefix.equals(prefix) && !EMPTYSTRING.equals(uri)) { // The first element has a prefix, so it can't be isHTML = false; break; } } } return isHTML; } /** * @see Serializer#asDOMSerializer() */ public DOMSerializer asDOMSerializer() throws IOException { return m_handler.asDOMSerializer(); } /** * @param URI_and_localNames Vector a list of pairs of URI/localName * specified in the cdata-section-elements attribute. * @see SerializationHandler#setCdataSectionElements(java.util.Vector) */ public void setCdataSectionElements(Vector URI_and_localNames) { m_handler.setCdataSectionElements(URI_and_localNames); } /** * @see ExtendedContentHandler#addAttributes(org.xml.sax.Attributes) */ public void addAttributes(Attributes atts) throws SAXException { m_handler.addAttributes(atts); } /** * Get the current namespace mappings. * Simply returns the mappings of the wrapped handler. * @see ExtendedContentHandler#getNamespaceMappings() */ public NamespaceMappings getNamespaceMappings() { NamespaceMappings mappings = null; if (m_handler != null) { mappings = m_handler.getNamespaceMappings(); } return mappings; } /** * @see SerializationHandler#flushPending() */ public void flushPending() throws SAXException { flush(); m_handler.flushPending(); } private void flush() { try { if (m_firstTagNotEmitted) { emitFirstTag(); } if (m_needToCallStartDocument) { m_handler.startDocument(); m_needToCallStartDocument = false; } } catch(SAXException e) { throw new RuntimeException(e.toString()); } } /** * @see ExtendedContentHandler#getPrefix */ public String getPrefix(String namespaceURI) { return m_handler.getPrefix(namespaceURI); } /** * @see ExtendedContentHandler#entityReference(java.lang.String) */ public void entityReference(String entityName) throws SAXException { m_handler.entityReference(entityName); } /** * @see ExtendedContentHandler#getNamespaceURI(java.lang.String, boolean) */ public String getNamespaceURI(String qname, boolean isElement) { return m_handler.getNamespaceURI(qname, isElement); } public String getNamespaceURIFromPrefix(String prefix) { return m_handler.getNamespaceURIFromPrefix(prefix); } public void setTransformer(Transformer t) { m_handler.setTransformer(t); if ((t instanceof SerializerTrace) && (((SerializerTrace) t).hasTraceListeners())) { m_tracer = (SerializerTrace) t; } else { m_tracer = null; } } public Transformer getTransformer() { return m_handler.getTransformer(); } /** * @see SerializationHandler#setContentHandler(org.xml.sax.ContentHandler) */ public void setContentHandler(ContentHandler ch) { m_handler.setContentHandler(ch); } /** * This method is used to set the source locator, which might be used to * generated an error message. * @param locator the source locator * * @see ExtendedContentHandler#setSourceLocator(javax.xml.transform.SourceLocator) */ public void setSourceLocator(SourceLocator locator) { m_handler.setSourceLocator(locator); } protected void firePseudoElement(String elementName) { if (m_tracer != null) { StringBuffer sb = new StringBuffer(); sb.append('<'); sb.append(elementName); // convert the StringBuffer to a char array and // emit the trace event that these characters "might" // be written char ch[] = sb.toString().toCharArray(); m_tracer.fireGenerateEvent( SerializerTrace.EVENTTYPE_OUTPUT_PSEUDO_CHARACTERS, ch, 0, ch.length); } } /** * @see org.apache.xml.serializer.Serializer#asDOM3Serializer() */ public Object asDOM3Serializer() throws IOException { return m_handler.asDOM3Serializer(); } }