I have developed a simple RESTful web service.
Root Resource Class:
@Path("/order")
@RequestScoped
public class CustOrderContainerResource {
//<editor-fold defaultstate="collapsed" desc="Instance Variable">
@Context
private UriInfo myUriInfo;
@Context
private ResourceContext myResourceContext;
@Context
private SecurityContext mySecurityContext;
@Inject
private CustOrderDAO myCustOrderDAO;
public CustOrderContainerResource() {
}
@GET
@Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_ATOM_XML})
public List<Custorder> ReadCustomerOrder(@QueryParam("min")int min,
@QueryParam("max")int max, @Context Request myRequest,
@Context HttpHeaders myHeader) {
int totalOrder = 0;
List<Custorder> resultList = null;
totalOrder = myCustOrderDAO.count();
if(min == 0 && max == 0) {
throw new QueryParamException("Order ID is empty");
}
else if(max > totalOrder) {
throw new QueryParamException("Order ID Range is invalid");
}
resultList = myCustOrderDAO.findRange(min, max, "findOrderIDRange");
return resultList;
}
@GET
@Produces(MediaType.APPLICATION_JSON)
public List<Custorder> ReadCustomerOrder() {
// Check conditional get here
return myCustOrderDAO.findAll();
}
@POST
@Consumes({MediaType.APPLICATION_XML, MediaType.APPLICATION_FORM_URLENCODED})
public Response createOrder(Custorder myCustOrder) {
String orderID = null;
myCustOrder.setStatus("pending");
myCustOrder.setOrderdate(new Date());
myCustOrder.setTotal("");
// Persist
myCustOrderDAO.create(myCustOrder);
// Get Order ID
// Embedded created URL for new customer order in response
return Response.created(myUriInfo.getAbsolutePath().resolve(myCustOrder.getOrderid() + "/")).build();
}
@Path("{orderID}")
// @Produces(MediaType.TEXT_HTML)
public CustOrderResource ReadSingleCustomerOrder(@PathParam("orderID") String orderID) {
int userOrderID = Integer.parseInt(orderID);
int myOrderID = myCustOrderDAO.count();
CustOrderResource myCustorder = null;
if(userOrderID > myOrderID
|| myCustOrderDAO.find(orderID) == null) {
throw new OrderNotFoundException("Order ID Not Found");
}
if(!mySecurityContext.isUserInRole("admin")) {
// Propogates to specific resource class
myCustorder = myResourceContext.getResource(CustOrderResource.class);
myCustorder.setOrderID(orderID);
}
return myCustorder;
// return CustOrderResource.getInstance(myCustOrderDAO, orderID);
}
}
Sub Resource Locator Class :
@RequestScoped
public class CustOrderResource {
//<editor-fold defaultstate="collapsed" desc="Instance Variable">
@Inject
private CustOrderDAO myCustOrderDAO;
private String orderID;
private static final Logger myLogger = Logger.getLogger(CustOrderResource.class.getName());
//</editor-fold>
// ========================================================
public CustOrderResource() {
}
private CustOrderResource(String orderID) {
this.orderID = orderID;
}
public static Custorder getInstance(CustOrderDAO myCustOrderDAO, String orderID) {
return myCustOrderDAO.find(orderID);
}
@GET
@Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON, MediaType.APPLICATION_ATOM_XML})
public Custorder getCustomerOrder() {
return myCustOrderDAO.find(orderID);
}
@POST
@Consumes(MediaType.APPLICATION_XML)
public String updateCustomerOrder() {
return "so";
/*try {
myCustOrderDAO.update(myCustOrder);
}
catch(Exception e) {
myLogger.log(Level.ALL, e.toString());
throw new WebApplicationException(
Response.status(Status.INTERNAL_SERVER_ERROR)
.entity("Cust Order Update Failed").build());
}*/
}
@DELETE
// 415 Unsupported media type
public String deleteCustomerOrder() {
return "Deleted";
// myCustOrderDAO.delete(myCustOrder);
}
public String getOrderID() {
return orderID;
}
public void setOrderID(String orderID) {
this.orderID = orderID;
}
}
My question is
- AFAIK, the resource context will propagate to specific resource class when we specify it as an argument according to the HTTP method like POST or DELETE. How do I pass the parameter from sub resource locator method into sub resource class method?
I tried to update customer order using post method with XML data but unfortunately the JAX-RS runtime returns 415 Unsupported media type.
I am using the REST client from http://code.google.com/p/rest-client/ to test my application, by pasting an XML file into the body tab content. What is wrong with it?
- Does the JAXB automatically convert to XML when I return a list of objects? I have tested and it return xml format but just want confirmation. Is it more flexible to return response object?
I wonder how to build a response object with list of object and list of URI or Atom XML with list of object (Apache Abdera).
- How to find out a id of a newly persisted object into database in my
createCustomerOrder
method ?
Thanks.
Please help.