org.apache.hadoop.fs.s3a.s3guard.ExpirableMetadata Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.hadoop.fs.s3a.s3guard;

/**
 * Expirable Metadata abstract class is for storing the field needed for
 * metadata classes in S3Guard that could be expired with TTL.
 */
public abstract class ExpirableMetadata {
  private long lastUpdated = 0;

  public long getLastUpdated() {
    return lastUpdated;
  }

  public void setLastUpdated(long lastUpdated) {
    this.lastUpdated = lastUpdated;
  }

  public boolean isExpired(long ttl, long now) {
    return (lastUpdated + ttl) <= now;
  }
}