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.contexts;
  
  import alluxio.conf.Configuration;
  import alluxio.grpc.MountPOptions;
  import alluxio.recorder.Recorder;
  import alluxio.util.FileSystemOptionsUtils;
  
  import com.google.common.base.MoreObjects;
  
  /**
   * Used to merge and wrap {@link MountPOptions}.
   */
  public class MountContext extends OperationContext<MountPOptions.Builder, MountContext> {
    // A Recorder used to record the execution process
    private final Recorder mRecorder;
  
    /**
     * Creates context with given option data.
     *
     * @param optionsBuilder options builder
     */
    private MountContext(MountPOptions.Builder optionsBuilder) {
      super(optionsBuilder);
      mRecorder = new Recorder();
    }
  
    /**
     * @param optionsBuilder Builder for proto {@link MountPOptions}
     * @return the instance of {@link MountContext} with the given options
     */
    public static MountContext create(MountPOptions.Builder optionsBuilder) {
      return new MountContext(optionsBuilder);
    }
  
    /**
     * Merges and embeds the given {@link MountPOptions} with the corresponding master options.
     *
     * @param optionsBuilder Builder for proto {@link MountPOptions} to embed
     * @return the instance of {@link MountContext} with default values for master
     */
    public static MountContext mergeFrom(MountPOptions.Builder optionsBuilder) {
      MountPOptions masterOptions = FileSystemOptionsUtils.mountDefaults(Configuration.global());
      MountPOptions.Builder mergedOptionsBuilder =
          masterOptions.toBuilder().mergeFrom(optionsBuilder.build());
      return create(mergedOptionsBuilder);
    }
  
    /**
     * @return the instance of {@link MountContext} with default values for master
     */
    public static MountContext defaults() {
      return create(FileSystemOptionsUtils.mountDefaults(Configuration.global()).toBuilder());
    }
  
    /**
     * Gets the Recorder.
     * @return Recorder
     */
    public Recorder getRecorder() {
      return mRecorder;
    }
  
    @Override
    public String toString() {
      return MoreObjects.toStringHelper(this)
          .add("ProtoOptions", getOptions().build())
          .toString();
    }
  }
  