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.checkconf;
  
  import alluxio.conf.PropertyKey;
  
  import java.util.Optional;
  import javax.annotation.Nullable;
  
  /**
   * An Alluxio configuration record.
   */
  public final class ConfigRecord {
    private PropertyKey mKey;
    private String mSource;
    private Optional<String> mValue;
  
    /**
     * Creates a new instance of {@link ConfigRecord}.
     */
    public ConfigRecord() {}
  
    /**
     * Creates a new instance of {@link ConfigRecord}.
     *
     * @param key the property key
     * @param source the source of the value
     * @param value the property value
     */
    public ConfigRecord(PropertyKey key, String source, @Nullable String value) {
      mKey = key;
      mSource = source;
      mValue = Optional.ofNullable(value);
    }
  
    /**
     * @return the property key
     */
    public PropertyKey getKey() {
      return mKey;
    }
  
    /**
     * @return the source of this property
     */
    public String getSource() {
      return mSource;
    }
  
    /**
     * @return the value of this property
     */
    public Optional<String> getValue() {
      return mValue;
    }
  
    /**
     * @param key the property key
     * @return the configuration record
     */
    public ConfigRecord setKey(PropertyKey key) {
      mKey = key;
      return this;
    }
  
    /**
     * @param source the source to use
     * @return the configuration record
     */
    public ConfigRecord setSource(String source) {
      mSource = source;
      return this;
    }
  
    /**
     * @param value the value to use
     * @return the configuration record
     */
    public ConfigRecord setValue(@Nullable String value) {
      mValue = Optional.ofNullable(value);
      return this;
    }
  }
  