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.block.meta;
  
  import com.google.common.base.MoreObjects;
  import com.google.common.base.Objects;
  
  import javax.annotation.concurrent.ThreadSafe;
  
  /**
   * The location of an Alluxio block.
   */
  @ThreadSafe
  public final class MasterBlockLocation {
    /** The id of the Alluxio worker. */
    private final long mWorkerId;
    /** The tier alias that the block is on in this worker. */
    private final String mTierAlias;
  
    /**
     * Creates a new instance of {@link MasterBlockLocation}.
     *
     * @param workerId the worker id to use
     * @param tierAlias the tier alias to use
     */
    MasterBlockLocation(long workerId, String tierAlias) {
      mWorkerId = workerId;
      mTierAlias = tierAlias;
    }
  
    /**
     * @return the worker id
     */
    public long getWorkerId() {
      return mWorkerId;
    }
  
    /**
     * @return the alias of the tier that the block is on in this worker
     */
    public String getTierAlias() {
      return mTierAlias;
    }
  
    @Override
    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
      if (!(o instanceof MasterBlockLocation)) {
        return false;
      }
      MasterBlockLocation that = (MasterBlockLocation) o;
      return Objects.equal(mWorkerId, that.mWorkerId)
          && Objects.equal(mTierAlias, that.mTierAlias);
    }
  
    @Override
    public int hashCode() {
      return Objects.hashCode(mWorkerId, mTierAlias);
    }
  
    @Override
    public String toString() {
      return MoreObjects.toStringHelper(this)
          .add("workerId", mWorkerId)
          .add("tierAlias", mTierAlias)
          .toString();
    }
  }
  