| Fields Summary |
|---|
| protected SAXParserFactory | parserFactoryThe SAX Parser Factory |
| protected String | parserClassThe SAX Parser Class |
| protected Hashtable | namespaceMapMapping table from QNames to CatalogParser classes.
Each key in this hash table has the form "elementname"
or "{namespaceuri}elementname". The former is used if the
namespace URI is null. |
| private SAXCatalogParser | saxParserThe parser in use for the current catalog. |
| private boolean | abandonHopeSet if something goes horribly wrong. It allows the class to
ignore the rest of the events that are received. |
| private com.sun.org.apache.xml.internal.resolver.Catalog | catalogThe Catalog that we're working for. |
| protected com.sun.org.apache.xml.internal.resolver.helpers.Debug | debugThe debug class to use for this reader.
This is a bit of a hack. Anyway, whenever we read for a catalog,
we extract the debug object
from the catalog's manager so that we can use it to print messages.
In production, we don't really expect any messages so it doesn't
really matter. But it's still a bit of a hack. |
| Methods Summary |
|---|
| public void | characters(char[] ch, int start, int length)The SAX characters method. Does nothing.
if (saxParser != null) {
saxParser.characters(ch, start, length);
}
|
| public void | endDocument()The SAX endDocument method. Does nothing.
if (saxParser != null) {
saxParser.endDocument();
}
|
| public void | endElement(java.lang.String name)The SAX endElement method. Does nothing.
if (saxParser != null) {
saxParser.endElement(name);
}
|
| public void | endElement(java.lang.String namespaceURI, java.lang.String localName, java.lang.String qName)The SAX2 endElement method. Does nothing.
if (saxParser != null) {
saxParser.endElement(namespaceURI, localName, qName);
}
|
| public void | endPrefixMapping(java.lang.String prefix)The SAX endPrefixMapping method. Does nothing.
if (saxParser != null) {
saxParser.endPrefixMapping (prefix);
}
|
| public java.lang.String | getCatalogParser(java.lang.String namespaceURI, java.lang.String rootElement)Get the SAXCatalogParser class for the given namespace/root
element type.
if (namespaceURI == null) {
return (String) namespaceMap.get(rootElement);
} else {
return (String) namespaceMap.get("{"+namespaceURI+"}"+rootElement);
}
|
| public java.lang.String | getParserClass()Get the parser class currently in use.
return parserClass;
|
| public javax.xml.parsers.SAXParserFactory | getParserFactory()Get the parser factory currently in use.
return parserFactory;
|
| public void | ignorableWhitespace(char[] ch, int start, int length)The SAX ignorableWhitespace method. Does nothing.
if (saxParser != null) {
saxParser.ignorableWhitespace(ch, start, length);
}
|
| public void | processingInstruction(java.lang.String target, java.lang.String data)The SAX processingInstruction method. Does nothing.
if (saxParser != null) {
saxParser.processingInstruction(target, data);
}
|
| public void | readCatalog(com.sun.org.apache.xml.internal.resolver.Catalog catalog, java.lang.String fileUrl)Parse an XML Catalog file.
URL url = null;
try {
url = new URL(fileUrl);
} catch (MalformedURLException e) {
url = new URL("file:///" + fileUrl);
}
debug = catalog.getCatalogManager().debug;
try {
URLConnection urlCon = url.openConnection();
readCatalog(catalog, urlCon.getInputStream());
} catch (FileNotFoundException e) {
catalog.getCatalogManager().debug.message(1, "Failed to load catalog, file not found",
url.toString());
}
|
| public void | readCatalog(com.sun.org.apache.xml.internal.resolver.Catalog catalog, java.io.InputStream is)Parse an XML Catalog stream.
// Create an instance of the parser
if (parserFactory == null && parserClass == null) {
debug.message(1, "Cannot read SAX catalog without a parser");
throw new CatalogException(CatalogException.UNPARSEABLE);
}
debug = catalog.getCatalogManager().debug;
EntityResolver bResolver = catalog.getCatalogManager().getBootstrapResolver();
this.catalog = catalog;
try {
if (parserFactory != null) {
SAXParser parser = parserFactory.newSAXParser();
SAXParserHandler spHandler = new SAXParserHandler();
spHandler.setContentHandler(this);
if (bResolver != null) {
spHandler.setEntityResolver(bResolver);
}
parser.parse(new InputSource(is), spHandler);
} else {
Parser parser = (Parser) Class.forName(parserClass).newInstance();
parser.setDocumentHandler(this);
if (bResolver != null) {
parser.setEntityResolver(bResolver);
}
parser.parse(new InputSource(is));
}
} catch (ClassNotFoundException cnfe) {
throw new CatalogException(CatalogException.UNPARSEABLE);
} catch (IllegalAccessException iae) {
throw new CatalogException(CatalogException.UNPARSEABLE);
} catch (InstantiationException ie) {
throw new CatalogException(CatalogException.UNPARSEABLE);
} catch (ParserConfigurationException pce) {
throw new CatalogException(CatalogException.UNKNOWN_FORMAT);
} catch (SAXException se) {
Exception e = se.getException();
// FIXME: there must be a better way
UnknownHostException uhe = new UnknownHostException();
FileNotFoundException fnfe = new FileNotFoundException();
if (e != null) {
if (e.getClass() == uhe.getClass()) {
throw new CatalogException(CatalogException.PARSE_FAILED,
e.toString());
} else if (e.getClass() == fnfe.getClass()) {
throw new CatalogException(CatalogException.PARSE_FAILED,
e.toString());
}
}
throw new CatalogException(se);
}
|
| public void | setCatalogParser(java.lang.String namespaceURI, java.lang.String rootElement, java.lang.String parserClass)Set the SAXCatalogParser class for the given namespace/root
element type.
if (namespaceURI == null) {
namespaceMap.put(rootElement, parserClass);
} else {
namespaceMap.put("{"+namespaceURI+"}"+rootElement, parserClass);
}
|
| public void | setDocumentLocator(org.xml.sax.Locator locator)The SAX setDocumentLocator method. Does nothing.
if (saxParser != null) {
saxParser.setDocumentLocator(locator);
}
|
| public void | setParserClass(java.lang.String parserClass)Set the XML SAX Parser Class
this.parserClass = parserClass;
|
| public void | setParserFactory(javax.xml.parsers.SAXParserFactory parserFactory)Set the XML SAX Parser Factory.
this.parserFactory = parserFactory;
|
| public void | skippedEntity(java.lang.String name)The SAX skippedentity method. Does nothing.
if (saxParser != null) {
saxParser.skippedEntity(name);
}
|
| public void | startDocument()The SAX startDocument method. Does nothing.
saxParser = null;
abandonHope = false;
return;
|
| public void | startElement(java.lang.String name, org.xml.sax.AttributeList atts)The SAX startElement method.
The catalog parser is selected based on the namespace of the
first element encountered in the catalog.
if (abandonHope) {
return;
}
if (saxParser == null) {
String prefix = "";
if (name.indexOf(':") > 0) {
prefix = name.substring(0, name.indexOf(':"));
}
String localName = name;
if (localName.indexOf(':") > 0) {
localName = localName.substring(localName.indexOf(':")+1);
}
String namespaceURI = null;
if (prefix.equals("")) {
namespaceURI = atts.getValue("xmlns");
} else {
namespaceURI = atts.getValue("xmlns:" + prefix);
}
String saxParserClass = getCatalogParser(namespaceURI,
localName);
if (saxParserClass == null) {
abandonHope = true;
if (namespaceURI == null) {
debug.message(2, "No Catalog parser for " + name);
} else {
debug.message(2, "No Catalog parser for "
+ "{" + namespaceURI + "}"
+ name);
}
return;
}
try {
saxParser = (SAXCatalogParser)
Class.forName(saxParserClass).newInstance();
saxParser.setCatalog(catalog);
saxParser.startDocument();
saxParser.startElement(name, atts);
} catch (ClassNotFoundException cnfe) {
saxParser = null;
abandonHope = true;
debug.message(2, cnfe.toString());
} catch (InstantiationException ie) {
saxParser = null;
abandonHope = true;
debug.message(2, ie.toString());
} catch (IllegalAccessException iae) {
saxParser = null;
abandonHope = true;
debug.message(2, iae.toString());
} catch (ClassCastException cce ) {
saxParser = null;
abandonHope = true;
debug.message(2, cce.toString());
}
} else {
saxParser.startElement(name, atts);
}
|
| public void | startElement(java.lang.String namespaceURI, java.lang.String localName, java.lang.String qName, org.xml.sax.Attributes atts)The SAX2 startElement method.
The catalog parser is selected based on the namespace of the
first element encountered in the catalog.
if (abandonHope) {
return;
}
if (saxParser == null) {
String saxParserClass = getCatalogParser(namespaceURI,
localName);
if (saxParserClass == null) {
abandonHope = true;
if (namespaceURI == null) {
debug.message(2, "No Catalog parser for " + localName);
} else {
debug.message(2, "No Catalog parser for "
+ "{" + namespaceURI + "}"
+ localName);
}
return;
}
try {
saxParser = (SAXCatalogParser)
Class.forName(saxParserClass).newInstance();
saxParser.setCatalog(catalog);
saxParser.startDocument();
saxParser.startElement(namespaceURI, localName, qName, atts);
} catch (ClassNotFoundException cnfe) {
saxParser = null;
abandonHope = true;
debug.message(2, cnfe.toString());
} catch (InstantiationException ie) {
saxParser = null;
abandonHope = true;
debug.message(2, ie.toString());
} catch (IllegalAccessException iae) {
saxParser = null;
abandonHope = true;
debug.message(2, iae.toString());
} catch (ClassCastException cce ) {
saxParser = null;
abandonHope = true;
debug.message(2, cce.toString());
}
} else {
saxParser.startElement(namespaceURI, localName, qName, atts);
}
|
| public void | startPrefixMapping(java.lang.String prefix, java.lang.String uri)The SAX startPrefixMapping method. Does nothing.
if (saxParser != null) {
saxParser.startPrefixMapping (prefix, uri);
}
|
