FileDocCategorySizeDatePackage
ExtendedXMLCatalogReader.javaAPI DocJava SE 6 API5742Tue Jun 10 00:23:00 BST 2008com.sun.org.apache.xml.internal.resolver.readers

ExtendedXMLCatalogReader

public class ExtendedXMLCatalogReader extends OASISXMLCatalogReader
Parse Extended OASIS Entity Resolution Technical Committee XML Catalog files.
see
Catalog
author
Norman Walsh Norman.Walsh@Sun.COM
version
1.0

Fields Summary
public static final String
extendedNamespaceName
The namespace name of extended catalog elements
Constructors Summary
Methods Summary
public voidendElement(java.lang.String namespaceURI, java.lang.String localName, java.lang.String qName)
The SAX endElement method does nothing.


    super.endElement(namespaceURI, localName, qName);

    // Check after popping the stack so we don't erroneously think we
    // are our own extension namespace...
    boolean inExtension = inExtensionNamespace();

    int entryType = -1;
    Vector entryArgs = new Vector();

    if (namespaceURI != null
	&& (extendedNamespaceName.equals(namespaceURI))
	&& !inExtension) {

      String popURI = (String) baseURIStack.pop();
      String baseURI = (String) baseURIStack.peek();

      if (!baseURI.equals(popURI)) {
	entryType = catalog.BASE;
	entryArgs.add(baseURI);

	debug.message(4, "(reset) xml:base", baseURI);

	try {
	  CatalogEntry ce = new CatalogEntry(entryType, entryArgs);
	  catalog.addEntry(ce);
	} catch (CatalogException cex) {
	  if (cex.getExceptionType() == CatalogException.INVALID_ENTRY_TYPE) {
	    debug.message(1, "Invalid catalog entry type", localName);
	  } else if (cex.getExceptionType() == CatalogException.INVALID_ENTRY) {
	    debug.message(1, "Invalid catalog entry (rbase)", localName);
	  }
	}
      }
    }
public voidstartElement(java.lang.String namespaceURI, java.lang.String localName, java.lang.String qName, org.xml.sax.Attributes atts)
The SAX startElement method recognizes elements from the plain catalog format and instantiates CatalogEntry objects for them.

param
namespaceURI The namespace name of the element.
param
localName The local name of the element.
param
qName The QName of the element.
param
atts The list of attributes on the element.
see
CatalogEntry


                                                        
      
			     
			     
			     
      

    // Check before calling the super because super will report our
    // namespace as an extension namespace, but that doesn't count
    // for this element.
    boolean inExtension = inExtensionNamespace();

    super.startElement(namespaceURI, localName, qName, atts);

    int entryType = -1;
    Vector entryArgs = new Vector();

    if (namespaceURI != null && extendedNamespaceName.equals(namespaceURI)
	&& !inExtension) {
      // This is an Extended XML Catalog entry

      if (atts.getValue("xml:base") != null) {
	String baseURI = atts.getValue("xml:base");
	entryType = Catalog.BASE;
	entryArgs.add(baseURI);
	baseURIStack.push(baseURI);

	debug.message(4, "xml:base", baseURI);

	try {
	  CatalogEntry ce = new CatalogEntry(entryType, entryArgs);
	  catalog.addEntry(ce);
	} catch (CatalogException cex) {
	  if (cex.getExceptionType() == CatalogException.INVALID_ENTRY_TYPE) {
	    debug.message(1, "Invalid catalog entry type", localName);
	  } else if (cex.getExceptionType() == CatalogException.INVALID_ENTRY) {
	    debug.message(1, "Invalid catalog entry (base)", localName);
	  }
	}

	entryType = -1;
	entryArgs = new Vector();
      } else {
	baseURIStack.push(baseURIStack.peek());
      }

      if (localName.equals("uriSuffix")) {
	if (checkAttributes(atts, "suffix", "uri")) {
	  entryType = Resolver.URISUFFIX;
	  entryArgs.add(atts.getValue("suffix"));
	  entryArgs.add(atts.getValue("uri"));

	  debug.message(4, "uriSuffix",
			atts.getValue("suffix"),
			atts.getValue("uri"));
	}
      } else if (localName.equals("systemSuffix")) {
	if (checkAttributes(atts, "suffix", "uri")) {
	  entryType = Resolver.SYSTEMSUFFIX;
	  entryArgs.add(atts.getValue("suffix"));
	  entryArgs.add(atts.getValue("uri"));

	  debug.message(4, "systemSuffix",
			atts.getValue("suffix"),
			atts.getValue("uri"));
	}
      } else {
	// This is equivalent to an invalid catalog entry type
	debug.message(1, "Invalid catalog entry type", localName);
      }

      if (entryType >= 0) {
	try {
	  CatalogEntry ce = new CatalogEntry(entryType, entryArgs);
	  catalog.addEntry(ce);
	} catch (CatalogException cex) {
	  if (cex.getExceptionType() == CatalogException.INVALID_ENTRY_TYPE) {
	    debug.message(1, "Invalid catalog entry type", localName);
	  } else if (cex.getExceptionType() == CatalogException.INVALID_ENTRY) {
	    debug.message(1, "Invalid catalog entry", localName);
	  }
	}
      }
    }