001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019package org.apache.hadoop.hdfs.server.protocol;
020
021/**
022 * The context of the block report.
023 *
024 * This is a set of fields that the Datanode sends to provide context about a
025 * block report RPC.  The context includes a unique 64-bit ID which
026 * identifies the block report as a whole.  It also includes the total number
027 * of RPCs which this block report is split into, and the index into that
028 * total for the current RPC.
029 */
030public class BlockReportContext {
031  private final int totalRpcs;
032  private final int curRpc;
033  private final long reportId;
034
035  public BlockReportContext(int totalRpcs, int curRpc, long reportId) {
036    this.totalRpcs = totalRpcs;
037    this.curRpc = curRpc;
038    this.reportId = reportId;
039  }
040
041  public int getTotalRpcs() {
042    return totalRpcs;
043  }
044
045  public int getCurRpc() {
046    return curRpc;
047  }
048
049  public long getReportId() {
050    return reportId;
051  }
052}