/*
    * Copyright 2018 SPF4J.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *      http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.spf4j.failsafe;
  
  import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  import java.util.function.Supplier;
  
  /**
   * @author Zoltan Farkas
   */
  @FunctionalInterface
  public interface TimedSupplier<T> {
  
    T get(long startTimeNanos, long deadlineNanos);
  
    static <T> TimedSupplier<T> constant(T value) {
      return new TimedSupplier<T>() {
        @Override
        public T get(final long startTimeNanos, final long deadlineNanos) {
          return value;
        }
  
        @Override
        public String toString() {
          return "ConstTimedSupplier{" + value + '}';
        }
      };
    }
  
    @SuppressFBWarnings("FII_USE_METHOD_REFERENCE")
    static <T> TimedSupplier<T> fromSupplier(Supplier<T> supplier) {
         return (s, e) -> supplier.get();
    }
  
  
  }