Class CatalogResolver

java.lang.Object
org.apache.xml.resolver.tools.CatalogResolver
All Implemented Interfaces:
URIResolver, EntityResolver

public class CatalogResolver extends Object implements EntityResolver, URIResolver
A SAX EntityResolver/JAXP URIResolver that uses catalogs.

This class implements both a SAX EntityResolver and a JAXP URIResolver.

This resolver understands OASIS TR9401 catalogs, XCatalogs, and the current working draft of the OASIS Entity Resolution Technical Committee specification.

Version:
1.0
Author:
Norman Walsh Norman.Walsh@Sun.COM
See Also:
  • Field Details

    • namespaceAware

      public boolean namespaceAware
      Make the parser Namespace aware?
    • validating

      public boolean validating
      Make the parser validating?
  • Constructor Details

    • CatalogResolver

      public CatalogResolver()
      Constructor
    • CatalogResolver

      public CatalogResolver(boolean privateCatalog)
      Constructor
    • CatalogResolver

      public CatalogResolver(CatalogManager manager)
      Constructor
  • Method Details

    • getCatalog

      public Catalog getCatalog()
      Return the underlying catalog
    • getResolvedEntity

      public String getResolvedEntity(String publicId, String systemId)
      Implements the guts of the resolveEntity method for the SAX interface.

      Presented with an optional public identifier and a system identifier, this function attempts to locate a mapping in the catalogs.

      If such a mapping is found, it is returned. If no mapping is found, null is returned.

      Parameters:
      publicId - The public identifier for the entity in question. This may be null.
      systemId - The system identifier for the entity in question. XML requires a system identifier on all external entities, so this value is always specified.
      Returns:
      The resolved identifier (a URI reference).
    • resolveEntity

      public InputSource resolveEntity(String publicId, String systemId)
      Implements the resolveEntity method for the SAX interface.

      Presented with an optional public identifier and a system identifier, this function attempts to locate a mapping in the catalogs.

      If such a mapping is found, the resolver attempts to open the mapped value as an InputSource and return it. Exceptions are ignored and null is returned if the mapped value cannot be opened as an input source.

      If no mapping is found (or an error occurs attempting to open the mapped value as an input source), null is returned and the system will use the specified system identifier as if no entityResolver was specified.

      Specified by:
      resolveEntity in interface EntityResolver
      Parameters:
      publicId - The public identifier for the entity in question. This may be null.
      systemId - The system identifier for the entity in question. XML requires a system identifier on all external entities, so this value is always specified.
      Returns:
      An InputSource for the mapped identifier, or null.
    • resolve

      public Source resolve(String href, String base) throws TransformerException
      JAXP URIResolver API
      Specified by:
      resolve in interface URIResolver
      Throws:
      TransformerException