common/src/main/java/org/apache/uniffle/common/BufferSegment.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.uniffle.common;

import java.util.Objects;

import org.apache.uniffle.common.exception.RssException;

public class BufferSegment {

  private long blockId;
  private long offset;
  private int length;
  private int uncompressLength;
  private long crc;
  private long taskAttemptId;

  public BufferSegment(
      long blockId, long offset, int length, int uncompressLength, long crc, long taskAttemptId) {
    this.blockId = blockId;
    this.offset = offset;
    this.length = length;
    this.uncompressLength = uncompressLength;
    this.crc = crc;
    this.taskAttemptId = taskAttemptId;
  }

  @Override
  public boolean equals(Object obj) {
    if (obj instanceof BufferSegment) {
      return blockId == ((BufferSegment) obj).getBlockId()
          && offset == ((BufferSegment) obj).getOffset()
          && length == ((BufferSegment) obj).getLength()
          && uncompressLength == ((BufferSegment) obj).getUncompressLength()
          && crc == ((BufferSegment) obj).getCrc()
          && taskAttemptId == ((BufferSegment) obj).getTaskAttemptId();
    }
    return false;
  }

  @Override
  public int hashCode() {
    return Objects.hash(blockId, offset, length, uncompressLength, crc, taskAttemptId);
  }

  @Override
  public String toString() {
    return "BufferSegment{blockId["
        + blockId
        + "], taskAttemptId["
        + taskAttemptId
        + "], offset["
        + offset
        + "], length["
        + length
        + "], crc["
        + crc
        + "], uncompressLength["
        + uncompressLength
        + "]}";
  }

  public int getOffset() {
    if (offset > Integer.MAX_VALUE) {
      throw new RssException("Unsupported offset[" + offset + "] for BufferSegment");
    }
    return (int) offset;
  }

  public int getLength() {
    return length;
  }

  public long getBlockId() {
    return blockId;
  }

  public long getCrc() {
    return crc;
  }

  public int getUncompressLength() {
    return uncompressLength;
  }

  public long getTaskAttemptId() {
    return taskAttemptId;
  }
}