Android Open Source - libaums Scsi Read Capacity Response

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License

The source code is released under:

Apache License

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Java Source Code

/*
 * (C) Copyright 2014 mjahnen <jahnen@in.tum.de>
 *// ww  w. j a v a2 s .  c  o m
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package com.github.mjdev.libaums.driver.scsi.commands;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;

/**
 * Represents the response of a read capacity request.
 * <p>
 * The response data is received in the data phase
 * 
 * @author mjahnen
 * @see com.github.mjdev.libaums.driver.scsi.commands.ScsiReadCapacity
 */
public class ScsiReadCapacityResponse {

  private int logicalBlockAddress;
  private int blockLength;

  private ScsiReadCapacityResponse() {

  }

  /**
   * Constructs a new object with the given data.
   * 
   * @param buffer
   *            The data where the {@link #ScsiReadCapacityResponse()} is
   *            located.
   * @return The parsed {@link #ScsiReadCapacityResponse()}.
   */
  public static ScsiReadCapacityResponse read(ByteBuffer buffer) {
    buffer.order(ByteOrder.BIG_ENDIAN);
    ScsiReadCapacityResponse res = new ScsiReadCapacityResponse();
    res.logicalBlockAddress = buffer.getInt();
    res.blockLength = buffer.getInt();
    return res;
  }

  /**
   * Returns the address of the last accessible block on the block device.
   * <p>
   * The size of the device is then last accessible block + 0!
   * 
   * @return The last block address.
   */
  public int getLogicalBlockAddress() {
    return logicalBlockAddress;
  }

  /**
   * Returns the size of each block in the block device.
   * 
   * @return The block size in bytes.
   */
  public int getBlockLength() {
    return blockLength;
  }
}

Java Source Code List