//(c) International Business Machines Corporation, 2002 - 2004. 
//(c) University of Edinburgh, 2002 - 2004.
//See OGSA-DAI-Licence.txt for licencing information.

package examples.tutorials.clienttoolkit;

import uk.org.ogsadai.client.toolkit.GridDataService;
import uk.org.ogsadai.client.toolkit.GridDataServiceFactory;
import uk.org.ogsadai.client.toolkit.Response;
import uk.org.ogsadai.client.toolkit.ServiceFetcher;
import uk.org.ogsadai.client.toolkit.activity.xmldb.XPathQuery;

/**
 * This is an example for a simple XPath query. The results are
 * returned within the response document.
 */
public class SimpleXPathQueryExample {

    public static void main(String[] args) throws Exception {

        // Default factory handle
        String handle = "http://localhost:8080/ogsa/services/ogsadai/GridDataServiceFactoryXindice";
        // Factory handle may be provided as an argument
        if (args.length == 1) {
            handle = args[0];
        }

        // Locate a Grid Data Service Factory
        GridDataServiceFactory factory = ServiceFetcher.getFactory(handle);
        System.out.println("Ready to connect to factory at " + handle);

        // Create a Grid Data Service
        GridDataService service = factory.createGridDataService();
        System.out.println("Created Grid Data Service at " + service.getHandle());

        // Prepare an XPath query
        XPathQuery query = new XPathQuery("/entry[@id<10]");

        // Perform the query
        System.out.println("Performing query...");
        Response response = service.perform(query);
        System.out.println("Response:\n" + response.getAsString());

        // Destroy the service
        service.destroy();
        System.out.println("Destroyed service.");

    }
}