hadoop BlockReportContext 源码
haddop BlockReportContext 代码
文件路径：/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/BlockReportContext.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.hadoop.hdfs.server.protocol;
import org.apache.hadoop.classification.InterfaceAudience;
/**
* The context of the block report.
*
* This is a set of fields that the Datanode sends to provide context about a
* block report RPC. The context includes a unique 64-bit ID which
* identifies the block report as a whole. It also includes the total number
* of RPCs which this block report is split into, and the index into that
* total for the current RPC.
*/
@InterfaceAudience.Private
public class BlockReportContext {
/**
* The total number of RPCs contained in the block report.
*/
private final int totalRpcs;
/**
* The index of this particular RPC.
*/
private final int curRpc;
/**
* A 64-bit ID which identifies the block report as a whole.
*/
private final long reportId;
/**
* The lease ID which this block report is using, or 0 if this block report is
* bypassing rate-limiting.
*/
private final long leaseId;
public BlockReportContext(int totalRpcs, int curRpc,
long reportId, long leaseId) {
this.totalRpcs = totalRpcs;
this.curRpc = curRpc;
this.reportId = reportId;
this.leaseId = leaseId;
}
public int getTotalRpcs() {
return totalRpcs;
}
public int getCurRpc() {
return curRpc;
}
public long getReportId() {
return reportId;
}
public long getLeaseId() {
return leaseId;
}
}
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