org.apache.jackrabbit.vault.util.xml.serialize

Class BaseMarkupSerializer

java.lang.Object

org.apache.jackrabbit.vault.util.xml.serialize.BaseMarkupSerializer

All Implemented Interfaces:

DOMSerializer, Serializer, ContentHandler, DocumentHandler, DTDHandler, DeclHandler, LexicalHandler

Direct Known Subclasses:

XMLSerializer

public abstract class BaseMarkupSerializer
extends Object
implements ContentHandler, DocumentHandler, LexicalHandler, DTDHandler, DeclHandler, DOMSerializer, Serializer

Base class for a serializer supporting both DOM and SAX pretty serializing of XML/HTML/XHTML documents. Derives classes perform the method-specific serializing, this class provides the common serializing mechanisms.

The serializer must be initialized with the proper writer and output format before it can be used by calling setOutputCharStream(java.io.Writer) or setOutputByteStream(java.io.OutputStream) for the writer and setOutputFormat(org.apache.jackrabbit.vault.util.xml.serialize.OutputFormat) for the output format.

The serializer can be reused any number of times, but cannot be used concurrently by two threads.

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. DOM serializing is done by calling serialize(Document) and SAX serializing is done by firing SAX events and using the serializer as a document handler. This also applies to derived class.

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 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.

When indenting, the serializer is capable of detecting seemingly element content, and serializing these elements indented on separate lines. An element is serialized indented when it is the first or last child of an element, or immediate following or preceding another element.

See Also:

Serializer, LSSerializer

Method Summary

Modifier and Type	Method and Description
ContentHandler	asContentHandler() Return a ContentHandler interface into this serializer.
DocumentHandler	asDocumentHandler() Return a DocumentHandler interface into this serializer.
DOMSerializer	asDOMSerializer() Return a DOMSerializer interface into this serializer.
void	attributeDecl(String eName, String aName, String type, String valueDefault, String value)
void	characters(char[] chars, int start, int length)
void	comment(char[] chars, int start, int length)
void	comment(String text)
void	elementDecl(String name, String model)
void	endCDATA()
void	endDocument() Called at the end of the document to wrap it up.
void	endDTD()
void	endEntity(String name)
void	endNonEscaping()
void	endPrefixMapping(String prefix)
void	endPreserving()
void	externalEntityDecl(String name, String publicId, String systemId)
void	ignorableWhitespace(char[] chars, int start, int length)
void	internalEntityDecl(String name, String value)
void	notationDecl(String name, String publicId, String systemId)
void	processingInstruction(String target, String code)
void	processingInstructionIO(String target, String code)
boolean	reset()
void	serialize(Document doc) Serializes the DOM document using the previously specified writer and output format.
void	serialize(DocumentFragment frag) Serializes the DOM document fragmnt using the previously specified writer and output format.
void	serialize(Element elem) Serializes the DOM element using the previously specified writer and output format.
void	setDocumentLocator(Locator locator)
void	setOutputByteStream(OutputStream output) The specified stream will not be closed by this class.
void	setOutputCharStream(Writer writer) The specified writer will not be closed by this class.
void	setOutputFormat(OutputFormat format) Specifies an output format for this serializer.
void	skippedEntity(String name)
void	startCDATA()
void	startDocument()
void	startDTD(String name, String publicId, String systemId)
void	startEntity(String name)
void	startNonEscaping()
void	startPrefixMapping(String prefix, String uri)
void	startPreserving()
void	unparsedEntityDecl(String name, String publicId, String systemId, String notationName)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.xml.sax.ContentHandler

endElement, startElement

Methods inherited from interface org.xml.sax.DocumentHandler

endElement, startElement

Method Detail

asDocumentHandler

public DocumentHandler asDocumentHandler()
                                  throws IOException

Description copied from interface: Serializer

Return a DocumentHandler interface into this serializer. If the serializer does not support the DocumentHandler interface, it should return null.

Specified by:

asDocumentHandler in interface Serializer

Throws:

IOException

asContentHandler

public ContentHandler asContentHandler()
                                throws IOException

Description copied from interface: Serializer

Return a ContentHandler interface into this serializer. If the serializer does not support the ContentHandler interface, it should return null.

Specified by:

asContentHandler in interface Serializer

Throws:

IOException

asDOMSerializer

public DOMSerializer asDOMSerializer()
                              throws IOException

Description copied from interface: Serializer

Return a DOMSerializer interface into this serializer. If the serializer does not support the DOMSerializer interface, it should return null.

Specified by:

asDOMSerializer in interface Serializer

Throws:

IOException

setOutputByteStream

public void setOutputByteStream(OutputStream output)

The specified stream will not be closed by this class.

Specified by:

setOutputByteStream in interface Serializer

setOutputCharStream

public void setOutputCharStream(Writer writer)

The specified writer will not be closed by this class.

Specified by:

setOutputCharStream in interface Serializer

setOutputFormat

public void setOutputFormat(OutputFormat format)

Description copied from interface: Serializer

Specifies an output format for this serializer. It the serializer has already been associated with an output format, it will switch to the new format. This method should not be called while the serializer is in the process of serializing a document.

Specified by:

setOutputFormat in interface Serializer

Parameters:

format - The output format to use

reset

public boolean reset()

serialize

public void serialize(Element elem)
               throws IOException

Serializes the DOM element using the previously specified writer and output format. Throws an exception only if an I/O exception occured while serializing.

Specified by:

serialize in interface DOMSerializer

Parameters:

elem - The element to serialize

Throws:

IOException - An I/O exception occured while serializing

serialize

public void serialize(DocumentFragment frag)
               throws IOException

Serializes the DOM document fragmnt using the previously specified writer and output format. Throws an exception only if an I/O exception occured while serializing.

Specified by:

serialize in interface DOMSerializer

Parameters:

frag - The element to serialize

Throws:

IOException - An I/O exception occured while serializing

serialize

public void serialize(Document doc)
               throws IOException

Serializes the DOM document using the previously specified writer and output format. Throws an exception only if an I/O exception occured while serializing.

Specified by:

serialize in interface DOMSerializer

Parameters:

doc - The document to serialize

Throws:

IOException - An I/O exception occured while serializing

startDocument

public void startDocument()
                   throws SAXException

Specified by:

startDocument in interface ContentHandler

Specified by:

startDocument in interface DocumentHandler

Throws:

SAXException

characters

public void characters(char[] chars,
                       int start,
                       int length)
                throws SAXException

Specified by:

characters in interface ContentHandler

Specified by:

characters in interface DocumentHandler

Throws:

SAXException

ignorableWhitespace

public void ignorableWhitespace(char[] chars,
                                int start,
                                int length)
                         throws SAXException

Specified by:

ignorableWhitespace in interface ContentHandler

Specified by:

ignorableWhitespace in interface DocumentHandler

Throws:

SAXException

processingInstruction

public final void processingInstruction(String target,
                                        String code)
                                 throws SAXException

Specified by:

processingInstruction in interface ContentHandler

Specified by:

processingInstruction in interface DocumentHandler

Throws:

SAXException

processingInstructionIO

public void processingInstructionIO(String target,
                                    String code)
                             throws IOException

Throws:

IOException

comment

public void comment(char[] chars,
                    int start,
                    int length)
             throws SAXException

Specified by:

comment in interface LexicalHandler

Throws:

SAXException

comment

public void comment(String text)
             throws IOException

Throws:

IOException

startCDATA

public void startCDATA()

Specified by:

startCDATA in interface LexicalHandler

endCDATA

public void endCDATA()

Specified by:

endCDATA in interface LexicalHandler

startNonEscaping

public void startNonEscaping()

endNonEscaping

public void endNonEscaping()

startPreserving

public void startPreserving()

endPreserving

public void endPreserving()

endDocument

public void endDocument()
                 throws SAXException

Called at the end of the document to wrap it up. Will flush the output stream and throw an exception if any I/O error occured while serializing.

Specified by:

endDocument in interface ContentHandler

Specified by:

endDocument in interface DocumentHandler

Throws:

SAXException - An I/O exception occured during serializing

startEntity

public void startEntity(String name)

Specified by:

startEntity in interface LexicalHandler

endEntity

public void endEntity(String name)

Specified by:

endEntity in interface LexicalHandler

setDocumentLocator

public void setDocumentLocator(Locator locator)

Specified by:

setDocumentLocator in interface ContentHandler

Specified by:

setDocumentLocator in interface DocumentHandler

skippedEntity

public void skippedEntity(String name)
                   throws SAXException

Specified by:

skippedEntity in interface ContentHandler

Throws:

SAXException

startPrefixMapping

public void startPrefixMapping(String prefix,
                               String uri)
                        throws SAXException

Specified by:

startPrefixMapping in interface ContentHandler

Throws:

SAXException

endPrefixMapping

public void endPrefixMapping(String prefix)
                      throws SAXException

Specified by:

endPrefixMapping in interface ContentHandler

Throws:

SAXException

startDTD

public final void startDTD(String name,
                           String publicId,
                           String systemId)
                    throws SAXException

Specified by:

startDTD in interface LexicalHandler

Throws:

SAXException

endDTD

public void endDTD()

Specified by:

endDTD in interface LexicalHandler

elementDecl

public void elementDecl(String name,
                        String model)
                 throws SAXException

Specified by:

elementDecl in interface DeclHandler

Throws:

SAXException

attributeDecl

public void attributeDecl(String eName,
                          String aName,
                          String type,
                          String valueDefault,
                          String value)
                   throws SAXException

Specified by:

attributeDecl in interface DeclHandler

Throws:

SAXException

internalEntityDecl

public void internalEntityDecl(String name,
                               String value)
                        throws SAXException

Specified by:

internalEntityDecl in interface DeclHandler

Throws:

SAXException

externalEntityDecl

public void externalEntityDecl(String name,
                               String publicId,
                               String systemId)
                        throws SAXException

Specified by:

externalEntityDecl in interface DeclHandler

Throws:

SAXException

unparsedEntityDecl

public void unparsedEntityDecl(String name,
                               String publicId,
                               String systemId,
                               String notationName)
                        throws SAXException

Specified by:

unparsedEntityDecl in interface DTDHandler

Throws:

SAXException

notationDecl

public void notationDecl(String name,
                         String publicId,
                         String systemId)
                  throws SAXException

Specified by:

notationDecl in interface DTDHandler

Throws:

SAXException