content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.master.meta;
  
  import alluxio.grpc.NetAddress;
  import alluxio.util.CommonUtils;
  
  import com.google.common.base.MoreObjects;
  import com.google.common.base.Preconditions;
  
  import javax.annotation.concurrent.NotThreadSafe;
  
  /**
   * Proxy information.
   */
  @NotThreadSafe
  public final class ProxyInfo {
    /** Proxy's address. */
    private final NetAddress mAddress;
    /** Proxy's last updated time in ms. */
    private long mLastHeartbeatTimeMs;
    /** Proxy's start time in ms. */
    private long mStartTimeMs = 0;
    /** Proxy's version. */
    private String mVersion = "";
    /** Proxy's revision. */
    private String mRevision = "";
  
    /**
     * Creates a new instance of {@link ProxyInfo}.
     *
     * @param address the proxy address to use
     */
    public ProxyInfo(NetAddress address) {
      mAddress = Preconditions.checkNotNull(address, "address");
      mLastHeartbeatTimeMs = CommonUtils.getCurrentMs();
    }
  
    /**
     * @return the proxy's address
     */
    public NetAddress getAddress() {
      return mAddress;
    }
  
    /**
     * @return the last updated time of the proxy in ms
     */
    public long getLastHeartbeatTimeMs() {
      return mLastHeartbeatTimeMs;
    }
  
    /**
     * @return the start time of the proxy in ms
     */
    public long getStartTimeMs() {
      return mStartTimeMs;
    }
  
    /**
     * @return the version of the proxy
     */
    public String getVersion() {
      return mVersion;
    }
  
    /**
     * @return the revision of the proxy
     */
    public String getRevision() {
      return mRevision;
    }
  
    @Override
    public String toString() {
      return MoreObjects.toStringHelper(this)
          .add("address", mAddress)
          .add("lastHeartbeatTimeMs", mLastHeartbeatTimeMs)
          .add("startTimeMs", mStartTimeMs)
          .add("version", mVersion)
          .add("revision", mRevision).toString();
    }
  
    /**
     * @param startTimeMs the start time of the proxy in ms
     */
    public void setStartTimeMs(long startTimeMs) {
      mStartTimeMs = startTimeMs;
    }
  
    /**
     * @param version the version of the proxy
     */
    public void setVersion(String version) {
      mVersion = version;
    }
  
    /**
     * @param revision the revision of the proxy
     */
    public void setRevision(String revision) {
      mRevision = revision;
    }
  
    /**
     * Updates the last updated time of the proxy in ms.
     */
    public void updateLastHeartbeatTimeMs() {
      mLastHeartbeatTimeMs = CommonUtils.getCurrentMs();
    }
  }
  