Examples of DescribeHandler

com.hp.hpl.jena.sparql.core.describe.DescribeHandler
A DescribeHandler provides the description of a resource. DESCRIBE queries return RDF that describes the resource found, either from the query pattern or explicitly named in the DESCRIBE clause. For each resource, any handlers are called to builds the RDF model that is to be the result of the query.
org.vfny.geoserver.wcs.requests.DescribeHandler
DOCUMENT ME! @author $Author: Alessio Fabiani (alessio.fabiani@gmail.com) $ (last modification) @author $Author: Simone Giannecchini (simboss1@gmail.com) $ (last modification)
org.vfny.geoserver.wfs.requests.DescribeHandler
Uses SAX to extact a DescribeFeatureType query from and incoming GetFeature request XML stream.
Note that this Handler extension ignores Filters completely and must be chained as a parent to the PredicateFilter method in order to recognize them. If it is not chained, it will still generate valid queries, but with no filtering whatsoever.
@author Rob Hranac, TOPP @version $Id: DescribeHandler.java,v 1.7 2004/02/13 19:30:39 dmzwiers Exp $

Examples of com.hp.hpl.jena.sparql.core.describe.DescribeHandler

    // Set up a custom DescribeHandler that calls out to
    // {@link ResourceDescriber}
    DescribeHandlerRegistry.get().clear();
    DescribeHandlerRegistry.get().add(new DescribeHandlerFactory() {
      public DescribeHandler create() {
        return new DescribeHandler() {
          private BulkUpdateHandler adder;


          public void start(Model accumulateResultModel,
              Context qContext) {
            adder = accumulateResultModel.getGraph()

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Examples of org.vfny.geoserver.wcs.requests.DescribeHandler

        throws WcsException {
        /** create a describe Coverage type request class to return */
        InputSource requestSource = new InputSource(reader);


        // instantiante parsers and content handlers
        DescribeHandler contentHandler = new DescribeHandler((WCSInfo)getService());


        // read in XML file and parse to content handler
        try {
            SAXParserFactory factory = SAXParserFactory.newInstance();
            SAXParser parser = factory.newSAXParser();
            ParserAdapter adapter = new ParserAdapter(parser.getParser());


            adapter.setContentHandler(contentHandler);
            adapter.parse(requestSource);
            LOGGER.finer("just parsed: " + requestSource);
        } catch (SAXException e) {
            throw new WcsException(e, "XML describe request parsing error", getClass().getName());
        } catch (IOException e) {
            throw new WcsException(e, "XML describe request input error", getClass().getName());
        } catch (ParserConfigurationException e) {
            throw new WcsException(e, "Some sort of issue creating parser", getClass().getName());
        }


        LOGGER.finer("about to return ");
        LOGGER.finer("returning " + contentHandler.getRequest(req));


        Request r = contentHandler.getRequest(req);


        if (r.getService() != null) {
            final String service = r.getService();


            if (!service.trim().toUpperCase().startsWith("WCS")) {

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Examples of org.vfny.geoserver.wfs.requests.DescribeHandler

    public Request read(Reader reader, HttpServletRequest req) throws WfsException {
        /** create a describe feature type request class to return */
        InputSource requestSource = new InputSource(reader);


        // instantiante parsers and content handlers
        DescribeHandler contentHandler = new DescribeHandler();


        // read in XML file and parse to content handler
        try {
            SAXParserFactory factory = SAXParserFactory.newInstance();
            SAXParser parser = factory.newSAXParser();
            ParserAdapter adapter = new ParserAdapter(parser.getParser());


            adapter.setContentHandler(contentHandler);
            adapter.parse(requestSource);
            LOGGER.finer("just parsed: " + requestSource);
        } catch (SAXException e) {
            throw new WfsException(e, "XML describe request parsing error",
                getClass().getName());
        } catch (IOException e) {
            throw new WfsException(e, "XML describe request input error",
                getClass().getName());
        } catch (ParserConfigurationException e) {
            throw new WfsException(e, "Some sort of issue creating parser",
                getClass().getName());
        }


        LOGGER.finer("about to return ");
        LOGGER.finer("returning " + contentHandler.getRequest(req));


        Request r = contentHandler.getRequest(req);
        return r;
    }

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