org.atmosphere.wasync

Interface FunctionResolver

public interface FunctionResolver

FunctionResolver are useful for mapping received message with a Function.

     Client client = ClientFactory.getDefault().newClient();

     RequestBuilder request = client.newRequestBuilder()
             .method(Request.METHOD.GET)
             .uri(targetUrl + "/suspend")
             .decoder(new Decoder<String, POJO>() {
                 @Override
                 public POJO decode(String s) {
                     return new POJO(s);
                 }
             })
             .transport(Request.TRANSPORT.WEBSOCKET);

     Socket socket = client.create();
     socket.on(Event.MESSAGE, new Function<POJO>() {
         @Override
         public void on(POJO t) {
             response.set(t);
         }
     })
 

or when a Decoder share the same type as the defined Function. For example:

     Client client = ClientFactory.getDefault().newClient();

     RequestBuilder request = client.newRequestBuilder()
             .method(Request.METHOD.GET)
             .uri(targetUrl + "/suspend")
             .decoder(new Decoder<String, POJO>() {
                 @Override
                 public POJO decode(String s) {
                     return new POJO(s);
                 }
             })
             .transport(Request.TRANSPORT.WEBSOCKET);

     Socket socket = client.create();
     socket.on(new Function<POJO>() {
         @Override
         public void on(POJO t) {
             response.set(t);
         }
     })
 

An application can define its own Decoder to Function Mapper be writing the appropriate FunctionResolver. By default, the DEFAULT is used.

Author:

Jeanfrancois Arcand

Field Summary

Fields

Modifier and Type	Field and Description
static FunctionResolver	DEFAULT

Method Summary

Modifier and Type	Method and Description
boolean	resolve(String message, Object functionName, FunctionWrapper fn) Resolve the current message

Field Detail

DEFAULT

static final FunctionResolver DEFAULT

Method Detail

resolve

boolean resolve(String message,
                Object functionName,
                FunctionWrapper fn)

Resolve the current message

Parameters:

message - the original response's body received

functionName - the default function name taken from Event or from a custom FunctionResolver

fn - The current FunctionWrapper

Returns:

true if the Function can be invoked.