/**
* This will be called by the processor when it encounters an xsl:include, xsl:import, or
* document() function.
*
* @param base The base URI that should be used.
* @param urlString Value from an xsl:import or xsl:include's href attribute, or a URI specified
* in the document() function.
* @return a Source that can be used to process the resource.
* @throws IOException
* @throws TransformerException
*/
public Source resolveURI(String base, String urlString, SourceLocator locator)
throws TransformerException, IOException {
Source source = null;
if (null != m_uriResolver) {
source = m_uriResolver.resolve(urlString, base);
}
if (null == source) {
String uri = SystemIDResolver.getAbsoluteURI(urlString, base);
source = new StreamSource(uri);
}
return source;
}
public void setSystemId(String systemId) {
if (systemId != null) {
_systemId = SystemIDResolver.getAbsoluteURI(systemId);
}
}
/**
* Get an instance of a DTM, loaded with the content from the specified source. If the unique flag
* is true, a new instance will always be returned. Otherwise it is up to the DTMManager to return
* a new instance or an instance that it already created and may be being used by someone else. (I
* think more parameters will need to be added for error handling, and entity resolution).
*
* @param source the specification of the source object.
* @param unique true if the returned DTM must be unique, probably because it is going to be
* mutated.
* @param whiteSpaceFilter Enables filtering of whitespace nodes, and may be null.
* @param incremental true if the DTM should be built incrementally, if possible.
* @param doIndexing true if the caller considers it worth it to use indexing schemes.
* @param hasUserReader true if <code>source</code> is a <code>SAXSource</code> object that has an
* <code>XMLReader</code>, that was specified by the user.
* @param size Specifies initial size of tables that represent the DTM
* @param buildIdIndex true if the id index table should be built.
* @param newNameTable true if we want to use a separate ExpandedNameTable for this DTM.
* @return a non-null DTM reference.
*/
public DTM getDTM(
Source source,
boolean unique,
DTMWSFilter whiteSpaceFilter,
boolean incremental,
boolean doIndexing,
boolean hasUserReader,
int size,
boolean buildIdIndex,
boolean newNameTable) {
if (DEBUG && null != source) {
System.out.println(
"Starting " + (unique ? "UNIQUE" : "shared") + " source: " + source.getSystemId());
}
int dtmPos = getFirstFreeDTMID();
int documentID = dtmPos << IDENT_DTM_NODE_BITS;
if ((null != source) && source instanceof StAXSource) {
final StAXSource staxSource = (StAXSource) source;
StAXEvent2SAX staxevent2sax = null;
StAXStream2SAX staxStream2SAX = null;
if (staxSource.getXMLEventReader() != null) {
final XMLEventReader xmlEventReader = staxSource.getXMLEventReader();
staxevent2sax = new StAXEvent2SAX(xmlEventReader);
} else if (staxSource.getXMLStreamReader() != null) {
final XMLStreamReader xmlStreamReader = staxSource.getXMLStreamReader();
staxStream2SAX = new StAXStream2SAX(xmlStreamReader);
}
SAXImpl dtm;
if (size <= 0) {
dtm =
new SAXImpl(
this,
source,
documentID,
whiteSpaceFilter,
null,
doIndexing,
DTMDefaultBase.DEFAULT_BLOCKSIZE,
buildIdIndex,
newNameTable);
} else {
dtm =
new SAXImpl(
this,
source,
documentID,
whiteSpaceFilter,
null,
doIndexing,
size,
buildIdIndex,
newNameTable);
}
dtm.setDocumentURI(source.getSystemId());
addDTM(dtm, dtmPos, 0);
try {
if (staxevent2sax != null) {
staxevent2sax.setContentHandler(dtm);
staxevent2sax.parse();
} else if (staxStream2SAX != null) {
staxStream2SAX.setContentHandler(dtm);
staxStream2SAX.parse();
}
} catch (RuntimeException re) {
throw re;
} catch (Exception e) {
throw new com.sun.org.apache.xml.internal.utils.WrappedRuntimeException(e);
}
return dtm;
} else if ((null != source) && source instanceof DOMSource) {
final DOMSource domsrc = (DOMSource) source;
final org.w3c.dom.Node node = domsrc.getNode();
final DOM2SAX dom2sax = new DOM2SAX(node);
SAXImpl dtm;
if (size <= 0) {
dtm =
new SAXImpl(
this,
source,
documentID,
whiteSpaceFilter,
null,
doIndexing,
DTMDefaultBase.DEFAULT_BLOCKSIZE,
buildIdIndex,
newNameTable);
} else {
dtm =
new SAXImpl(
this,
source,
documentID,
whiteSpaceFilter,
null,
doIndexing,
size,
buildIdIndex,
newNameTable);
}
dtm.setDocumentURI(source.getSystemId());
addDTM(dtm, dtmPos, 0);
dom2sax.setContentHandler(dtm);
try {
dom2sax.parse();
} catch (RuntimeException re) {
throw re;
} catch (Exception e) {
throw new com.sun.org.apache.xml.internal.utils.WrappedRuntimeException(e);
}
return dtm;
} else {
boolean isSAXSource = (null != source) ? (source instanceof SAXSource) : true;
boolean isStreamSource = (null != source) ? (source instanceof StreamSource) : false;
if (isSAXSource || isStreamSource) {
XMLReader reader;
InputSource xmlSource;
if (null == source) {
xmlSource = null;
reader = null;
hasUserReader = false; // Make sure the user didn't lie
} else {
reader = getXMLReader(source);
xmlSource = SAXSource.sourceToInputSource(source);
String urlOfSource = xmlSource.getSystemId();
if (null != urlOfSource) {
try {
urlOfSource = SystemIDResolver.getAbsoluteURI(urlOfSource);
} catch (Exception e) {
// %REVIEW% Is there a better way to send a warning?
System.err.println("Can not absolutize URL: " + urlOfSource);
}
xmlSource.setSystemId(urlOfSource);
}
}
// Create the basic SAX2DTM.
SAXImpl dtm;
if (size <= 0) {
dtm =
new SAXImpl(
this,
source,
documentID,
whiteSpaceFilter,
null,
doIndexing,
DTMDefaultBase.DEFAULT_BLOCKSIZE,
buildIdIndex,
newNameTable);
} else {
dtm =
new SAXImpl(
this,
source,
documentID,
whiteSpaceFilter,
null,
doIndexing,
size,
buildIdIndex,
newNameTable);
}
// Go ahead and add the DTM to the lookup table. This needs to be
// done before any parsing occurs. Note offset 0, since we've just
// created a new DTM.
addDTM(dtm, dtmPos, 0);
if (null == reader) {
// Then the user will construct it themselves.
return dtm;
}
reader.setContentHandler(dtm.getBuilder());
if (!hasUserReader || null == reader.getDTDHandler()) {
reader.setDTDHandler(dtm);
}
if (!hasUserReader || null == reader.getErrorHandler()) {
reader.setErrorHandler(dtm);
}
try {
reader.setProperty("http://xml.org/sax/properties/lexical-handler", dtm);
} catch (SAXNotRecognizedException e) {
} catch (SAXNotSupportedException e) {
}
try {
reader.parse(xmlSource);
} catch (RuntimeException re) {
throw re;
} catch (Exception e) {
throw new com.sun.org.apache.xml.internal.utils.WrappedRuntimeException(e);
} finally {
if (!hasUserReader) {
releaseXMLReader(reader);
}
}
if (DUMPTREE) {
System.out.println("Dumping SAX2DOM");
dtm.dumpDTM(System.err);
}
return dtm;
} else {
// It should have been handled by a derived class or the caller
// made a mistake.
throw new DTMException(
XMLMessages.createXMLMessage(
XMLErrorResources.ER_NOT_SUPPORTED, new Object[] {source}));
}
}
}
