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 TeiidComponentException(err);
        }
    
    // place the schema into the customized entity resolver so that we can
    // resolve the schema elements
    EntityResolver xmlEntityResolver = new MultiEntityResolver(nameSpaceMap);
    reader.setEntityResolver(xmlEntityResolver);


    // Create the specialized error handler so that we can get any warnings, 
    // errors, or fatal errors back from validation
    MMErrorHandler errorHandler = new MMErrorHandler();

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        if(resolveEntity) {
            org.apache.xml.resolver.CatalogManager catalog = org.apache.xml.resolver.CatalogManager.getStaticManager();
            catalog.setIgnoreMissingProperties(true);
            catalog.setPreferPublic(true);
            catalog.setUseStaticCatalog(false);
            EntityResolver resolver = new org.apache.xml.resolver.tools.CatalogResolver(catalog);
            myReader.setEntityResolver(resolver);
        }
        return myReader;
    }

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            preparser.setFeature("http://xml.org/sax/features/namespaces", true);
            preparser.setFeature("http://xml.org/sax/features/validation", true);
            preparser.setFeature("http://apache.org/xml/features/validation/schema", true);
            preparser.setFeature("http://apache.org/xml/features/validation/schema-full-checking", true);


            EntityResolver eresolver = new EntityResolver() {
                public InputSource resolveEntity(String publicID, String systemID) throws SAXException,
                    IOException {


                    String url = resolveUrl(systemID);
                    if (url == null) {

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import org.springframework.core.io.UrlResource;


public class CeltixXmlBeanFactoryTest extends TestCase {


    public void testEntityResolver() throws SAXException, IOException, NoSuchMethodException {
        EntityResolver resolver = new CeltixBeansDtdResolver();
        assertNull(resolver.resolveEntity("-//SPRING//DTD BEAN//EN", 
            "http://www.springframework.org/dtd/spring-beans.dtd"));
        assertNotNull(resolver.resolveEntity(null, 
            "http://celtix.objectweb.org/configuration/spring/celtix-spring-beans.dtd"));
        
        
        CeltixBeansDtdResolver cer  = EasyMock.createMock(CeltixBeansDtdResolver.class,
            new Method[] {CeltixBeansDtdResolver.class.getDeclaredMethod("getDtdFile", (Class[])null)});

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  // Implementation methods
  // -------------------------------------------------------------------------


  protected void loadSchema(Document document, String schemaInstanceURI) {
    try {
      EntityResolver resolver = document.getEntityResolver();


      if (resolver == null) {
        String msg = "No EntityResolver available for resolving URI: ";
        throw new InvalidSchemaException(msg + schemaInstanceURI);
      }


      InputSource inputSource = resolver.resolveEntity(null,
          schemaInstanceURI);


      if (resolver == null) {
        throw new InvalidSchemaException("Could not resolve the URI: "
            + schemaInstanceURI);

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  }


  protected void loadSchema(Document document, String schemaInstanceURI,
                            Namespace namespace) {
    try {
      EntityResolver resolver = document.getEntityResolver();


      if (resolver == null) {
        String msg = "No EntityResolver available for resolving URI: ";
        throw new InvalidSchemaException(msg + schemaInstanceURI);
      }


      InputSource inputSource = resolver.resolveEntity(null,
          schemaInstanceURI);


      if (resolver == null) {
        throw new InvalidSchemaException("Could not resolve the URI: "
            + schemaInstanceURI);

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      while (includeIter.hasNext()) {
        Element includeElement = (Element) includeIter.next();
        String inclSchemaInstanceURI = includeElement
            .attributeValue("schemaLocation");
        EntityResolver resolver = schemaDocument.getEntityResolver();


        try {
          if (resolver == null) {
            String msg = "No EntityResolver available";
            throw new InvalidSchemaException(msg);
          }


          InputSource inputSource = resolver.resolveEntity(null,
              inclSchemaInstanceURI);


          if (inputSource == null) {
            String msg = "Could not resolve the schema URI: "
                + inclSchemaInstanceURI;

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            }


            // Generate the default handler to process the metadata
            
            DefaultHandler handler = null;
            EntityResolver entityResolver = null;
            try
            {
                entityResolver = EntityResolverFactory.getInstance(mgr.getOMFContext().getPluginManager(), handlerName);
                if (entityResolver != null)
                {

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      }
      public void warning(SAXParseException e) throws SAXException {
        getLog().warn(e.getMessage());
      }
    });
    digester.setEntityResolver(new EntityResolver() {
      public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException {
        InputSource result = null;
        if (schemaResolver != null) {
          result = schemaResolver.resolveEntity(publicId, systemId);
        }

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      protected Builder newBuilder() {
        if (validate.equals("wf")) {
          return builderPool.getBuilder(false);
        } else if (validate.equals("dtd")) {
          if (schema == null) return builderPool.getBuilder(true);
          EntityResolver resolver;
          try {
            resolver = new BuilderFactory().createResolver(
                  new FileInputStream(schema));
          } catch (IOException e) {
            throw new UsageException(e);

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