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package org.jooby;
import java.util.concurrent.Callable;
import java.util.concurrent.CompletableFuture;
import org.jooby.internal.mapper.CallableMapper;
import org.jooby.internal.mapper.CompletableFutureMapper;
/**
* async-mapper
*
* Map {@link Callable} and {@link CompletableFuture} results to {@link Deferred Deferred API}.
*
*
* usage
*
* Script route:
* {@code
* {
* map(new AsyncMapper());
*
* get("/callable", () -> {
* return new Callable () {
* public String call() {
* return "OK";
* }
* };
* });
*
* get("/completable-future", () -> {
* return CompletableFuture.supplyAsync(() -> "OK");
* });
* }
* }
*
* From Mvc route you can return a callable:
*
* {@code
*
* public class Controller {
* @GET
* @Path("/async")
* public Callable async() {
* return "Success";
* }
* }
* }
*
* @author edgar
* @since 1.0.0
*/
@SuppressWarnings("rawtypes")
public class AsyncMapper implements Route.Mapper {
@Override
public Object map(final Object value) throws Throwable {
if (value instanceof Callable) {
return new CallableMapper().map((Callable) value);
} else if (value instanceof CompletableFuture) {
return new CompletableFutureMapper().map((CompletableFuture) value);
}
return value;
}
}