/*
 * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.opendaylight.controller.sal.common.util;

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

/**
 * @deprecated Use {@link com.google.common.util.concurrent.Futures} instead.
 */
@Deprecated
public class Futures {

    private Futures() {
    }

    public static <T> Future<T> immediateFuture(T result) {
        return new ImmediateFuture<T>(result);
    }

    private static class ImmediateFuture<T> implements Future<T> {

        private final T result;

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

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

        @Override
        public boolean isCancelled() {
            return false;
        }

        @Override
        public boolean isDone() {
            return true;
        }

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

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

    }
}