| /* |
| * 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. |
| */ |
| /* |
| * $Id$ |
| */ |
| 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 <html> 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 <html> or <HTML> |
| * 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 <html> 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 <html> 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 <html> 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 <html> |
| 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(); |
| } |
| } |
