Package eu.bandm.tools.xslt.base

Class Templates

java.lang.Object

eu.bandm.tools.xslt.base.MessageSender

eu.bandm.tools.xslt.base.Templates

All Implemented Interfaces:

ContentHandler

public class Templates
extends MessageSender
implements ContentHandler

Represents one single xslt source file, w/o further context info. Internally PURE subtrees are realized by xslt and target tdom trees; BI-COLOURED tree nodes are realized by MultiTypeNodeList objects. Each instance of this class is a SAX receiver, ie. provides the parsing method for these bi-coloured trees.
The SAX receiver switches between xslt mode and target mode and delegates parsing to the TDOM sax receiver method. Whenever a tdom element is completed successfully, a "parseListener" can take this element and insert it into a MultiTypeNodeList. If the parsing process fails under the way, because of an xslt element embedded in a target structure (which can happen ubiquituously), then tdom parsing is cancelled. For this case a MultiTypeNodeList is constructed as a "plan b" in parallel to the SAX event forwarding, and completed instead. A missing attribute or an attribute with "value template" also leads to an incomplete target element, ie a MultiTypeNodeList.
No context check is done, this is done by the user, which is a Transformation.

Field Summary

Fields

Modifier and Type	Field	Description
static final Attributes	EMPTY_ATTRIBUTES
final Map<TypedSubstantial,Binding<String,String>>	ns_contexts	Map from every xslt code node or target language element (complete Element or incomplete MultiTypeNodeList) to the valid namspace prefix mapping.
final Map<eu.bandm.tools.xslt.tdom.Element,MultiTypeNodeList>	result_subtrees	Links from xslt elements at LEAF position to their raw/MultiType contents.
static final TPathCache	tpathCache	Cache for all parsed tpath expressions.
static final DTD.Dtd	xsltDtd
static final DTM.Dtd	xsltDtm

Constructor Summary

Constructors

Constructor	Description
Templates(MessageReceiver<SimpleMessage<XMLDocumentIdentifier>> msg, Trace trace, URI ownUri, ResultContext resultContext)

Method Summary

Modifier and Type	Method	Description
void	characters(char[] ch, int start, int length)
void	dump(ContentHandler p)
void	endDocument()
void	endElement(String namespaceURI, String localName, String qName)
void	endPrefixMapping(String pref)
void	ignorableWhitespace(char[] ch, int start, int length)
void	processingInstruction(String name, String v)
void	setDocumentLocator(Locator locator)
void	skippedEntity(String name)
void	startDocument()
void	startElement(String namespaceURI, String localName, String qName, Attributes atts)
void	startPrefixMapping(String pref, String uri)

Methods inherited from class eu.bandm.tools.xslt.base.MessageSender

getLocation, setMsg, setTrace

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.xml.sax.ContentHandler

declaration

Field Details

xsltDtd

public static final DTD.Dtd xsltDtd

xsltDtm

public static final DTM.Dtd xsltDtm

EMPTY_ATTRIBUTES

public static final Attributes EMPTY_ATTRIBUTES

tpathCache

public static final TPathCache tpathCache

Cache for all parsed tpath expressions. Syntax only, therefore shared by all xslt code. FIXME how serialized !?!?!

result_subtrees

public final Map<eu.bandm.tools.xslt.tdom.Element,MultiTypeNodeList> result_subtrees

Links from xslt elements at LEAF position to their raw/MultiType contents. These also contain the parsed tpath expressions of those attribute values (of the later result element) which are AVTs.

ns_contexts

public final Map<TypedSubstantial,Binding<String,String>> ns_contexts

Map from every xslt code node or target language element (complete Element or incomplete MultiTypeNodeList) to the valid namspace prefix mapping. It simply "freezes" a point in the dynamic state of ns_prefixMap.
This is necessary because namespace prefices must be resolved not only in sax events (which are already resolved consistently, when arriving here!-) BUT ALSO LATER when evaluating xpath expressions and some object names stored in attributes (parameters, variables, attribute sets).
Is easy to produce because it is TOTALLY STATIC info.

Constructor Details

Templates

public Templates(MessageReceiver<SimpleMessage<XMLDocumentIdentifier>> msg,
 Trace trace,
 URI ownUri,
 ResultContext resultContext)

Parameters:

trace - set of flags for trace on/off

ownUri - position of the file to parse

resultContext - wraps all info from result tdom and dtd

Method Details

dump

public void dump(ContentHandler p)

startPrefixMapping

public void startPrefixMapping(String pref,
 String uri)

Specified by:

startPrefixMapping in interface ContentHandler

endPrefixMapping

public void endPrefixMapping(String pref)

Specified by:

endPrefixMapping in interface ContentHandler

startElement

public void startElement(String namespaceURI,
 String localName,
 String qName,
 Attributes atts)
                  throws SAXException

Specified by:

startElement in interface ContentHandler

Throws:

SAXException

endElement

public void endElement(String namespaceURI,
 String localName,
 String qName)
                throws SAXException

Specified by:

endElement in interface ContentHandler

Throws:

SAXException

skippedEntity

public void skippedEntity(String name)
                   throws SAXException

Specified by:

skippedEntity in interface ContentHandler

Throws:

SAXException

processingInstruction

public void processingInstruction(String name,
 String v)

Specified by:

processingInstruction in interface ContentHandler

startDocument

public void startDocument()

Specified by:

startDocument in interface ContentHandler

endDocument

public void endDocument()

Specified by:

endDocument in interface ContentHandler

ignorableWhitespace

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

Specified by:

ignorableWhitespace in interface ContentHandler

Throws:

SAXException

characters

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

Specified by:

characters in interface ContentHandler

Throws:

SAXException

setDocumentLocator

public void setDocumentLocator(Locator locator)

Specified by:

setDocumentLocator in interface ContentHandler