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.wire;
  
  import alluxio.annotation.PublicApi;
  
  import com.google.common.base.MoreObjects;
  import com.google.common.base.Objects;
  import com.google.common.base.Preconditions;
  
  import java.io.Serializable;
  import javax.annotation.concurrent.NotThreadSafe;
  
  /**
   * The location of a block.
   */
  @PublicApi
  @NotThreadSafe
  public final class BlockLocation implements Serializable {
    private static final long serialVersionUID = 9017017197104411532L;
  
    private long mWorkerId;
    private WorkerNetAddress mWorkerAddress = new WorkerNetAddress();
    private String mTierAlias = "";
    private String mMediumType = "";
  
    /**
     * Creates a new instance of {@link BlockLocation}.
     */
    public BlockLocation() {}
  
    /**
     * @return the worker id
     */
    public long getWorkerId() {
      return mWorkerId;
    }
  
    /**
     * @return the worker address
     */
    public WorkerNetAddress getWorkerAddress() {
      return mWorkerAddress;
    }
  
    /**
     * @return the tier alias
     */
    public String getTierAlias() {
      return mTierAlias;
    }
  
    /**
     * @return the medium type
     */
    public String getMediumType() {
      return mMediumType;
    }
  
    /**
     * @param workerId the worker id to use
     * @return the block location
     */
    public BlockLocation setWorkerId(long workerId) {
      mWorkerId = workerId;
      return this;
    }
  
    /**
     * @param workerAddress the worker address to use
     * @return the block location
     */
    public BlockLocation setWorkerAddress(WorkerNetAddress workerAddress) {
      Preconditions.checkNotNull(workerAddress, "workerAddress");
      mWorkerAddress = workerAddress;
      return this;
    }
  
    /**
     * @param tierAlias the tier alias to use
     * @return the block location
     */
    public BlockLocation setTierAlias(String tierAlias) {
      Preconditions.checkNotNull(tierAlias, "tierAlias");
      mTierAlias = tierAlias;
      return this;
    }
  
    /**
     *
     * @param mediumType the medium type to use
     * @return the block location
     */
    public BlockLocation setMediumType(String mediumType) {
      Preconditions.checkNotNull(mediumType, "mediumType");
      mMediumType = mediumType;
      return this;
    }
  
    @Override
    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
      if (!(o instanceof BlockLocation)) {
        return false;
      }
      BlockLocation that = (BlockLocation) o;
      return mWorkerId == that.mWorkerId && mWorkerAddress.equals(that.mWorkerAddress)
          && mTierAlias.equals(that.mTierAlias) && mMediumType.equals(that.mMediumType);
    }
  
    @Override
    public int hashCode() {
      return Objects.hashCode(mWorkerId, mWorkerAddress, mTierAlias, mMediumType);
    }
  
    @Override
    public String toString() {
      return MoreObjects.toStringHelper(this)
          .add("workerId", mWorkerId)
          .add("address", mWorkerAddress)
          .add("tierAlias", mTierAlias)
          .add("mediumType", mMediumType)
          .toString();
    }
  }
  