Clock.java

/**
 * Copyright 2010 Google Inc.
 *
 * 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 net.oauth.jsontoken;

import org.joda.time.Instant;

/**
 * Clock interface.
 */
public interface Clock {

  /**
   * Returns current time.
   */
  public Instant now();

  /**
   * Determines whether the current time falls within the interval defined by the
   * start and intervalLength parameters. Implementations are free to fudge this a
   * little bit to take into account possible clock skew.
   */
  public boolean isCurrentTimeInInterval(Instant start, Instant end);
}