Examples for Chapter 10 - RESTful Java with JAX-RS 2.0 - page 312

Order order = new new Order ();

order . setTotal ( "$199.99" );
order . setCustomer ( customer );
order . setDate ( new new Date (). toString ());

LineItem item = new new LineItem ();

item . setCost ( "$199.99" );
item . setProduct ( "iPhone" );
order . setLineItems ( new new ArrayList < LineItem >());

order . getLineItems (). add ( item );

System . out . println ();
System . out . println ( "** Create an order through this URL: "
+ orders . getUri (). toString ());
response = client . target ( orders ). request (). post ( Entity . xml ( order ));
Assert . assertEquals ( 201 , response . getStatus ());
URI createdOrderUrl = response . getLocation ();
response . close ();

Next, we create an order entry by posting to the orders link relationship. The URL of the
created order is extracted from the returned Location header. We will need this later when
we want to cancel this order:

System . out . println ();
System . out . println ( "** New list of orders" );
response = client . target ( orders ). request (). get ();
String orderList = response . readEntity ( String . class );
System . out . println ( orderList );
Link purge = response . getLink ( "purge" );
response . close ();

A GET /orders request is initiated to show all the orders posted to the system. We extract the
purge link returned by this invocation so it can be used later when the client wants to purge
cancelled orders:

response = client . target ( createdOrderUrl ). request (). head ();
Link cancel = response . getLink ( "cancel" );
response . close ();

Next, the client cancels the order that was created earlier. A HEAD request is made to the
created order's URL to obtain the cancel link relationship:

iif ( cancel != null null )

{

System . out . println ( "** Cancelling the order at URL: "
+ cancel . getUri (). toString ());
response = client . target ( cancel ). request (). post ( null null );