Examples of org.xml.sax.EntityResolver

org.xml.sax.EntityResolver
axproject.org'>http://www.saxproject.org for further information.
If a SAX application needs to implement customized handling for external entities, it must implement this interface and register an instance with the SAX driver using the {@link org.xml.sax.XMLReader#setEntityResolver setEntityResolver}method.

The XML reader will then allow the application to intercept any external entities (including the external DTD subset and external parameter entities, if any) before including them.

Many SAX applications will not need to implement this interface, but it will be especially useful for applications that build XML documents from databases or other specialised input sources, or for applications that use URI types other than URLs.

The following resolver would provide the application with a special character stream for the entity with the system identifier "http://www.myhost.com/today":
```
 import org.xml.sax.EntityResolver; import org.xml.sax.InputSource; public class MyResolver implements EntityResolver { public InputSource resolveEntity (String publicId, String systemId) { if (systemId.equals("http://www.myhost.com/today")) { // return a special input source MyReader reader = new MyReader(); return new InputSource(reader); } else { // use the default behaviour return null; } } } 
```
The application can also use this interface to redirect system identifiers to local URIs or to look up replacements in a catalog (possibly by using the public identifier).
@since SAX 1.0 @author David Megginson @version 2.0.1 (sax2r2) @see org.xml.sax.XMLReader#setEntityResolver @see org.xml.sax.InputSource

                    throw new ConfigInitializationException("Validation errors occurred parsing the config file \"" +
                        resourcePath + "\".  Cause: " + exception, exception);
                }
            });


            db.setEntityResolver(new EntityResolver() {
                public InputSource resolveEntity(String publicId, String systemId) {
                    if(systemId.endsWith("/beehive-netui-config.xsd")) {
                        InputStream inputStream = NetUIConfigParser.class.getClassLoader().getResourceAsStream(CONFIG_SCHEMA);
                        return new InputSource(inputStream);
                    }

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                    public void fatalError(SAXParseException exception) {
                        _log.error("Validation errors occurred parsing the config file \"" + _configFilePath + "\".  Cause: " + exception, exception);
                    }
                });


                db.setEntityResolver(new EntityResolver() {
                    public InputSource resolveEntity(String publicId, String systemId) {
                        if(systemId.endsWith("/url-template-config.xsd")) {
                            InputStream inputStream = DefaultURLTemplatesFactory.class.getClassLoader().getResourceAsStream(CONFIG_SCHEMA);
                            return new InputSource(inputStream);
                        }

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//                    XMLReader xliffreader = XMLReaderFactory
//                            .createXMLReader("org.apache.crimson.parser.XMLReaderImpl");
                    xliffreader.setErrorHandler(contentHandler);
                    xliffreader.setContentHandler(contentHandler);
                    /* one possibility to resolve an extern entity (DTD) */
                    EntityResolver res = new Resolver();
                    xliffreader.setEntityResolver(res);
                    /*
                     * a second possibility to resolve an extern entity (DTD)
                     * 
                     * xliffreader.setFeature("xml.org/sax/features/validation",true);

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     *         has been registered.
     * @see #setEntityResolver
     */
    public EntityResolver getEntityResolver() {


        EntityResolver entityResolver = null;
        try {
            XMLEntityResolver xmlEntityResolver =
                (XMLEntityResolver)fConfiguration.getProperty(ENTITY_RESOLVER);
            if (xmlEntityResolver != null &&
                xmlEntityResolver instanceof EntityResolverWrapper) {

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        // build the in-memory type system
        state = StscState.start();
        // construct the state (have to initialize early in case of errors)
        state.setErrorListener(errorListener);


        EntityResolver cmdLineEntRes = ResolverUtil.resolverForCatalog(catalog);
        typeSystem = loadTypeSystem(wsdl, 
                                     bindingFiles, 
                                     null, 
                                     null, 
                                     null,

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               return source;
            }
         }


         // first try to resolve using user's entity resolver
         EntityResolver resolver = fEntityHandler.getEntityResolver();
         if (resolver != null) {
            InputSource source = resolver.resolveEntity(publicId, systemId);
            if (source != null) {
               return source;
            }
         }

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    Digester dig = new Digester();
    dig.setDocumentLocator(new LocatorImpl());
    // Disable xml validations at all - web.xml already validated by
    // container
    dig.setValidating(false);
    dig.setEntityResolver(new EntityResolver() {
      // Dummi resolver - alvays do nothing
      public InputSource resolveEntity(String publicId, String systemId)
          throws SAXException, IOException {
        return new InputSource(new StringReader(""));
      }

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      InputStream in = URLToStreamHelper.urlToStream(resourceConfig);
      try {
        Digester digester = new Digester();
        digester.setValidating(false);
        digester.setEntityResolver(new EntityResolver() {
          // Dummi resolver - alvays do nothing
          public InputSource resolveEntity(String publicId,
              String systemId) throws SAXException, IOException {
            return new InputSource(new StringReader(""));
          }

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        final Digester d = new Digester();


        System.out.println( "Parsing file " + input.getAbsolutePath() );


        d.setEntityResolver(
                new EntityResolver()
                {
                    public InputSource resolveEntity(
                            String publicId,
                            String systemId
                    )

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        try
        {
            // Parse the input
            XMLReader reader = getXMLReaderCached();
            reader.setEntityResolver(
                new EntityResolver()
                {
                    public InputSource resolveEntity(String publicId, String systemId)
                    {
                        //Ignore all DTDs
                        return new InputSource(new ByteArrayInputStream(new byte[0]));

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