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 com.google.common.base.MoreObjects;
  
  import java.io.Serializable;
  
  /**
   * A class representing the state of a physical device.
   */
  public class JournalDiskInfo implements Serializable {
    private static final long serialVersionUID = 12938071234234123L;
  
    private final String mDiskPath;
    private final String mDiskType;
    private final long mUsedBytes;
    private final long mTotalAllocatedBytes;
    private final long mAvailableBytes;
    private final double mPercentAvailable;
    private final String mMountPath;
  
    /**
     * Create a new instance of {@link JournalDiskInfo} representing the current utilization for a
     * particular block device.
     *
     * @param diskPath            the path to the raw device
     * @param diskType            the type to the raw device
     * @param totalAllocatedBytes the total filesystem
     * @param usedBytes           the amount of bytes used by the filesystem
     * @param availableBytes      the amount of bytes available on the filesystem
     * @param mountPath           the path where the device is mounted
     */
    public JournalDiskInfo(String diskPath, String diskType, long totalAllocatedBytes, long usedBytes,
        long availableBytes, String mountPath) {
      mDiskPath = diskPath;
      mDiskType = diskType;
      mTotalAllocatedBytes = totalAllocatedBytes * 1024;
      mUsedBytes = usedBytes * 1024;
      mAvailableBytes = availableBytes * 1024;
      mMountPath = mountPath;
      mPercentAvailable = 100 * ((double) mAvailableBytes / (mAvailableBytes + mUsedBytes));
    }
  
    /**
     * @return the raw device path
     */
    public String getDiskPath() {
      return mDiskPath;
    }
  
    /**
     * @return the device path with schema
     */
    public String getDiskPathWithSchema() {
      if (mDiskType.contains("nfs")) {
        return "nfs://" + mDiskPath;
      }
      return mDiskPath;
    }
  
    /**
     * @return the bytes used by the device
     */
    public long getUsedBytes() {
      return mUsedBytes;
    }
  
    /**
     * @return the total bytes allocated for the filesystem on this device
     */
    public long getTotalAllocatedBytes() {
      return mTotalAllocatedBytes;
    }
  
    /**
     * @return the remaining available bytes on this disk
     */
    public long getAvailableBytes() {
      return mAvailableBytes;
    }
  
    /**
     * @return the path where this disk is mounted
     */
    public String getMountPath() {
      return mMountPath;
    }
  
    /**
     * @return the percent of remaining space available on this disk
     */
    public double getPercentAvailable() {
      return mPercentAvailable;
    }
  
    @Override
    public String toString() {
      return MoreObjects.toStringHelper(this).add("diskPath", mDiskPath)
          .add("totalAllocatedBytes", mTotalAllocatedBytes).add("usedBytes", mUsedBytes)
          .add("availableBytes", mAvailableBytes).add("percentAvailable", mPercentAvailable)
          .add("mountPath", mMountPath).toString();
    }
  }
  