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.wire.Address;
  
  import com.google.common.base.MoreObjects;
  import com.google.common.base.Preconditions;
  
  import javax.annotation.concurrent.NotThreadSafe;
  
  /**
   * Master information.
   */
  @NotThreadSafe
  public final class MasterInfo {
    /** Master's address. */
    private final Address mAddress;
    /** The id of the master. */
    private final long mId;
    /** Master's last updated time in ms. */
    private long mLastUpdatedTimeMs;
    /** Master's start time in ms. */
    private long mStartTimeMs = 0;
    /** Master's last lose primacy time in ms. */
    private long mLosePrimacyTimeMs = 0;
    /** Master's version. */
    private String mVersion = "";
    /** Master's revision. */
    private String mRevision = "";
    /** Master's last checkpoint time in ms. */
    private long mLastCheckpointTimeMs = 0;
    /** Number of journal entries since last checkpoint. */
    private long mJournalEntriesSinceCheckpoint = 0;
  
    /**
     * Creates a new instance of {@link MasterInfo}.
     *
     * @param id the master id to use
     * @param address the master address to use
     */
    public MasterInfo(long id, Address address) {
      mAddress = Preconditions.checkNotNull(address, "address");
      mId = id;
      mLastUpdatedTimeMs = System.currentTimeMillis();
    }
  
    /**
     * @return the master's address
     */
    public Address getAddress() {
      return mAddress;
    }
  
    /**
     * @return the id of the master
     */
    public long getId() {
      return mId;
    }
  
    /**
     * @return the last updated time of the master in ms
     */
    public long getLastUpdatedTimeMs() {
      return mLastUpdatedTimeMs;
    }
  
    /**
     * @return the start time of the master in ms
     */
    public long getStartTimeMs() {
      return mStartTimeMs;
    }
  
    /**
     * @return the last lose primacy time of the master in ms
     */
    public long getLosePrimacyTimeMs() {
      return mLosePrimacyTimeMs;
    }
  
    /**
     * @return the version of the master
     */
    public String getVersion() {
      return mVersion;
    }
  
    /**
     * @return the revision of the master
     */
    public String getRevision() {
      return mRevision;
    }
  
    /**
     * @return the time of last checkpoint
     */
    public long getLastCheckpointTimeMs() {
      return mLastCheckpointTimeMs;
    }
  
    /**
     * @return number of journal entries since last checkpoint
     */
    public long getJournalEntriesSinceCheckpoint() {
      return mJournalEntriesSinceCheckpoint;
    }
  
    @Override
    public String toString() {
      return MoreObjects.toStringHelper(this).add("id", mId).add("address", mAddress)
          .add("lastUpdatedTimeMs", mLastUpdatedTimeMs).add("startTimeMs", mStartTimeMs)
          .add("losePrimacyTimeMs", mLosePrimacyTimeMs)
          .add("version", mVersion).add("revision", mRevision).toString();
    }
  
    /**
     * @param startTimeMs the start time of the master in ms
     */
    public void setStartTimeMs(long startTimeMs) {
      mStartTimeMs = startTimeMs;
    }
  
    /**
     * @param losePrimacyTimeMs the last primacy state change time of the master in ms
     */
    public void setLosePrimacyTimeMs(long losePrimacyTimeMs) {
      mLosePrimacyTimeMs = losePrimacyTimeMs;
    }
  
    /**
     * @param version the version of the master
     */
    public void setVersion(String version) {
      mVersion = version;
    }
  
    /**
     * @param revision the revision of the master
     */
    public void setRevision(String revision) {
      mRevision = revision;
    }
  
    /**
     * Updates the last updated time of the master in ms.
     */
    public void updateLastUpdatedTimeMs() {
      mLastUpdatedTimeMs = System.currentTimeMillis();
    }
  
    /**
     * @param lastCheckpointTimeMs the time of last checkpoint
     */
    public void setLastCheckpointTimeMs(long lastCheckpointTimeMs) {
      mLastCheckpointTimeMs = lastCheckpointTimeMs;
    }
  
    /**
     * @param journalEntriesSinceCheckpoint number of journal entries since last checkpoint
     */
    public void setJournalEntriesSinceCheckpoint(long journalEntriesSinceCheckpoint) {
      mJournalEntriesSinceCheckpoint = journalEntriesSinceCheckpoint;
    }
  }
  