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.file.meta.options;
  
  import alluxio.AlluxioURI;
  import alluxio.conf.ConfigurationValueOptions;
  import alluxio.grpc.MountPOptions;
  import alluxio.grpc.UfsInfo;
  import alluxio.underfs.UnderFileSystemConfiguration;
  import alluxio.wire.MountPointInfo;
  
  import com.google.common.base.MoreObjects;
  import com.google.common.base.Preconditions;
  
  import java.util.Map;
  import java.util.Objects;
  import javax.annotation.concurrent.ThreadSafe;
  
  /**
   * This class holds information about a mount point.
   */
  @ThreadSafe
  public class MountInfo {
    private final AlluxioURI mAlluxioUri;
    private final AlluxioURI mUfsUri;
    private final MountPOptions mOptions;
    private final long mMountId;
  
    /**
     * Creates a new instance of {@code MountInfo}.
     *
     * @param alluxioUri an Alluxio path URI
     * @param ufsUri a UFS path URI
     * @param mountId the id of the mount
     * @param options the mount options
     */
    public MountInfo(AlluxioURI alluxioUri, AlluxioURI ufsUri, long mountId, MountPOptions options) {
      mAlluxioUri = Preconditions.checkNotNull(alluxioUri, "alluxioUri");
      mUfsUri = Preconditions.checkNotNull(ufsUri, "ufsUri");
      mMountId = mountId;
      mOptions = options;
    }
  
    /**
     * @return the {@link AlluxioURI} of the Alluxio path
     */
    public AlluxioURI getAlluxioUri() {
      return mAlluxioUri;
    }
  
    /**
     * @return the {@link AlluxioURI} of the ufs path
     */
    public AlluxioURI getUfsUri() {
      return mUfsUri;
    }
  
    /**
     * @return the {@link MountPOptions} for the mount point
     */
    public MountPOptions getOptions() {
      return mOptions;
    }
  
    /**
     * @return the {@link UfsInfo} for the mount point
     */
    public UfsInfo toUfsInfo() {
      return UfsInfo.newBuilder().setUri(mUfsUri.toString()).setProperties(getOptions()).build();
    }
  
    /**
     * @return the id of the mount
     */
    public long getMountId() {
      return mMountId;
    }
  
    /**
     * @return the {@link MountPointInfo} for the mount point
     */
    public MountPointInfo toMountPointInfo() {
      MountPointInfo info = new MountPointInfo();
      info.setUfsUri(mUfsUri.toString());
      info.setReadOnly(mOptions.getReadOnly());
      info.setProperties(mOptions.getProperties());
      info.setShared(mOptions.getShared());
      info.setMountId(mMountId);
      return info;
    }
  
    /**
     * @return the {@link MountPointInfo} for the mount point. Some information is formatted
     * for display purpose.
     */
    public MountPointInfo toDisplayMountPointInfo() {
      MountPointInfo info = toMountPointInfo();
      UnderFileSystemConfiguration conf =
          UnderFileSystemConfiguration.emptyConfig().createMountSpecificConf(info.getProperties());
      Map<String, String> displayConf = conf.toUserPropertyMap(
          ConfigurationValueOptions.defaults().useDisplayValue(true));
      info.setProperties(displayConf);
      return info;
    }
  
    @Override
    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
      if (!(o instanceof MountInfo)) {
        return false;
      }
      MountInfo that = (MountInfo) o;
      return mMountId == that.getMountId()
          && mAlluxioUri.equals(that.getAlluxioUri())
          && mUfsUri.equals(that.getUfsUri())
          && mOptions.getReadOnly() == (that.getOptions().getReadOnly())
          && mOptions.getShared() == (that.getOptions().getShared());
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(mMountId, mAlluxioUri, mUfsUri, mOptions);
    }
  
    @Override
    public String toString() {
      return MoreObjects.toStringHelper(this)
          .add("AlluxioURI", mAlluxioUri)
          .add("UfsURI", mUfsUri)
          .toString();
    }
  }
  