From: abhishek sinha <abhishek.sinha.leo_at_gmail.com>
Date: Fri, 24 Sep 2010 12:17:31 +0530

Hi,

We am implementing REST webservices in oue application. I am facing two
problems which I am mentioning below.

1. In my web application, I have spring security for authentication and
authorization. Roles and resource mapping is in the database.
    I want to know that how can I put username and password into header? I
am trying below code. is below correct?

        ClientConfig config = new DefaultClientConfig();
        client = Client.create(config);
        client.addFilter(new
com.sun.jersey.api.client.filter.HTTPBasicAuthFilter("admin", "admin"));
        webResource =
client.resource(BASE_URI).path("SiteRestService/siteservice");

    I am not sure that we have Basic Auth in our application. But when I am
using SOAP then the header is
    <soapenv:Header>
       <wsse:Security soapenv:mustUnderstand="1" xmlns:wsse="
http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd
">
             <wsse:UsernameToken wsu:Id="UsernameToken-2" xmlns:wsu="
http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd
">
             <wsse:Username>admin</wsse:Username>
             <wsse:Password Type="
http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText
">admin</wsse:Password>
             <wsse:Nonce EncodingType="
http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary
">gvIzkBwKKLO7xThAl1mKUQ==</wsse:Nonce>
             <wsu:Created>2010-09-24T03:47:52.040Z</wsu:Created>
             </wsse:UsernameToken>
       </wsse:Security>
    </soapenv:Header>

   and above soap is working fine.

2. For my second concern, I am providing code:

My REST webservice:

 @Path("/siteservice/")
 @Produces("text/xml")
 @Consumes("text/xml")
public class SiteManagerImpl extends SiteManagerImplRoot{

    public SiteManagerImpl(SiteDAO primaryDAO) {
        super(primaryDAO);
    }
}

public abstract class SiteManagerImplRoot extends GenericManagerImpl<Site,
SiteDAO>
    implements SiteManager {

    public SiteManagerImplRoot(SiteDAO primaryDAO) {
        super(primaryDAO);
    }

    @POST
    @Path("/addsite/")
    public String save_str(String site) {
     System.out.println("here123");
        return "xyz";
    }

    @GET
    @Path("/site/{sitename}")
    @Produces("text/xml")
    public Site findByName(@PathParam("sitename") String name) throws
DataAccessException {
        return this.getPrimaryDAO().findByName(name);
    }
}

My REST client is:
public class SiteClient {
    private WebResource webResource;
    private Client client;
    private static final String BASE_URI = "
http://localhost:8380/VC32/services";
    private String username = "adimn";
    private String password = "admin";

    public SiteClient() {
        ClientConfig config = new DefaultClientConfig();
        client = Client.create(config);
        webResource =
client.resource(BASE_URI).path("SiteRestService/siteservice");
    }

    public <T> T getSiteByName(Class<T> responseType, String sitename)
throws UniformInterfaceException {
        return webResource.path(MessageFormat.format("site/{0}", new
Object[]{sitename})).accept(MediaType.TEXT_XML).get(responseType);
    }

    public ClientResponse addSite(Object obj) throws
UniformInterfaceException {
        return webResource.path("addsite").post(ClientResponse.class, obj);
    }

    public ClientResponse addSite_String(String obj) throws
UniformInterfaceException {
        return
webResource.path("addsite1").type(MediaType.TEXT_XML).post(ClientResponse.class,
obj);
    }

    public void close() {
        client.destroy();
    }
}

public class MainSite {
public static void main(String[] args) {
SiteClient sc = new SiteClient();

                //1. Working fine, getting obj
Site site = sc.getSiteByName(Site.class, "Test Site3");
System.out.println(site.getDescription());
               //2. Working fine. getting XML
String site_xml = sc.getSiteByName(String.class, "Default");
System.out.println("Site in XML:" + site_xml);
                // 3
Site site_obj = new Site();
site_obj.setName("Test Site1");
sc.addSite(site_obj);
                //4
String addSite_xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"
standalone=\"yes\"?>" +
"<Site><version>1</version><description>Test site 2</description>" +
"<name>Test Site 2</name><notes>Notes for Test Site 2</notes></Site>";
 sc.addSite_String("as");
 sc.close();
}
}

In the above code, you can see the SiteManagerImpl extends
SiteManagerImplRoot. Object of SiteManagetImpl is created by Spring and we
inject DAO into it.
In MainSite.java, when I am fetching data from GET, it is working fine with
no excpetion. But when I am posting data through POST then getting below
exception:

org.apache.cxf.interceptor.Fault: object is not an instance of declaring
class while invoking public java.lang.String
com.vocollect.epp.service.impl.SiteManagerImplRoot.save_str(java.lang.String)
with params [as].

I have attached the full stack trace in error.txt.

Why it is working fine for GET but not for POST?

Thanks in advance
Abhishek