ReturningFuture.java

package com.librato.metrics.client;

import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class ReturningFuture<T> implements Future<T> {
    private final T result;

    public ReturningFuture(T result) {
        this.result = result;
    }

    public static <T> ReturningFuture<T> of(T result) {
        return new ReturningFuture<T>(result);
    }

    public boolean cancel(boolean mayInterruptIfRunning) {
        return false;
    }

    public boolean isCancelled() {
        return false;
    }

    public boolean isDone() {
        return true;
    }

    public T get() throws InterruptedException, ExecutionException {
        return result;
    }

    public T get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
        return result;
    }
}