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CDLister.javaAPI DocExample5546Wed Sep 19 09:29:10 BST 2001javaxml2

CDLister

public class CDLister extends Object

CDLister is a web services client. It connects to the cd-catalog-demo service and lists the currently available CDs.

(Omit source code)

Fields Summary
Constructors Summary
Methods Summary
public voidlist(java.net.URL url)

This will connect to the provided URL and attempt to use the cd-catalog-demo web service to get a listing of currently available CDs. It then outputs that list to System.out.

param
url URL where web service is running.
throws
SOAPException - when errors in accessing the web service occur.

        System.out.println("Listing current CD catalog.");

        // Map the CD type so SOAP can use it
        SOAPMappingRegistry registry = new SOAPMappingRegistry();
        BeanSerializer serializer = new BeanSerializer();
        registry.mapTypes(Constants.NS_URI_SOAP_ENC,
            new QName("urn:cd-catalog-demo", "cd"),
            CD.class, serializer, serializer);   

        // Build the Call object
        Call call = new Call();
        call.setSOAPMappingRegistry(registry);
        call.setTargetObjectURI("urn:cd-catalog");
        call.setMethodName("list");
        call.setEncodingStyleURI(Constants.NS_URI_SOAP_ENC);

        // No parameters needed

        // Invoke the call
        Response response;
        response = call.invoke(url, "");

        if (!response.generatedFault()) {
            Parameter returnValue = response.getReturnValue();
            Hashtable catalog = (Hashtable)returnValue.getValue();
            Enumeration e = catalog.keys();
            while (e.hasMoreElements()) {
                String title = (String)e.nextElement();
                CD cd = (CD)catalog.get(title);
                System.out.println("  '" + cd.getTitle() + "' by " + cd.getArtist() +
                    " on the label " + cd.getLabel());
            }
        } else {
            Fault fault = response.getFault();
            System.out.println("Error encountered: " + fault.getFaultString());

            Vector entries = fault.getDetailEntries();
            for (Iterator i = entries.iterator(); i.hasNext(); ) {
                org.w3c.dom.Element entry = (org.w3c.dom.Element)i.next();
                System.out.println(entry.getFirstChild().getNodeValue());
            }
        }
public static voidmain(java.lang.String[] args)

Provide a static entry point.

        if (args.length != 1) {
            System.out.println("Usage: java javaxml2.CDAdder [SOAP server URL]");
            return;
        }

        try {
            // URL for SOAP server to connect to
            URL url = new URL(args[0]);

            // List the current CDs
            CDLister lister = new CDLister();
            lister.list(url);
        } catch (Exception e) {
            e.printStackTrace();
        }