com.aol.cyclops.vavr.adapter.FutureAdapter Maven / Gradle / Ivy

Go to download
package com.aol.cyclops.vavr.adapter;


import com.aol.cyclops2.types.anyM.AnyMValue;
import com.aol.cyclops2.types.extensability.ValueAdapter;
import cyclops.conversion.vavr.FromCyclopsReact;
import cyclops.conversion.vavr.ToCyclopsReact;
import cyclops.monads.Vavr;

import cyclops.monads.VavrWitness;
import cyclops.monads.VavrWitness.future;
import com.aol.cyclops2.types.extensability.AbstractFunctionalAdapter;
import cyclops.control.Maybe;
import cyclops.monads.AnyM;

import io.vavr.concurrent.Future;
import io.vavr.concurrent.Promise;
import lombok.AllArgsConstructor;

import java.util.function.Function;
import java.util.function.Predicate;


@AllArgsConstructor
public class FutureAdapter implements ValueAdapter {


    public  T get(AnyMValue t){
        return future(t).get();
    }
    @Override
    public  Iterable toIterable(AnyM t) {
        return Maybe.fromIterable(t.unwrap());
    }

    @Override
    public  AnyM ap(AnyM> fn, AnyM apply) {
        Future f = future(apply);
        Future> fnF = future(fn);
        Future res = FromCyclopsReact.future(ToCyclopsReact.future(fnF).combine(ToCyclopsReact.future(f), (a, b) -> a.apply(b)));
        return Vavr.future(res);

    }

    @Override
    public  AnyM filter(AnyM t, Predicate fn) {
        return Vavr.future(future(t).filter(fn));
    }

     Future future(AnyM anyM){
        return anyM.unwrap();
    }

    @Override
    public  AnyM empty() {

        return Vavr.future(Promise.make().future());
    }



    @Override
    public  AnyM flatMap(AnyM t,
                                     Function> fn) {
        return Vavr.future(future(t).flatMap(fn.andThen(a-> future(a))));

    }

    @Override
    public  AnyM unitIterable(Iterable it)  {
        return Vavr.future(FromCyclopsReact.future(Maybe.fromIterable(it)));
    }

    @Override
    public  AnyM unit(T o) {
        return Vavr.future(Future.successful(o));
    }

    @Override
    public  AnyM map(AnyM t, Function fn) {
        return Vavr.future(future(t).map(fn));
    }
}