| /** |
| * 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.blockmanagement; |
| |
| import java.beans.ConstructorProperties; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| |
| /** |
| * Statistics per StorageType. |
| * |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Evolving |
| public class StorageTypeStats { |
| private long capacityTotal = 0L; |
| private long capacityUsed = 0L; |
| private long capacityNonDfsUsed = 0L; |
| private long capacityRemaining = 0L; |
| private long blockPoolUsed = 0L; |
| private int nodesInService = 0; |
| |
| @ConstructorProperties({"capacityTotal", "capacityUsed", "capacityNonDfsUsed", |
| "capacityRemaining", "blockPoolUsed", "nodesInService"}) |
| public StorageTypeStats( |
| long capacityTotal, long capacityUsed, long capacityNonDfsUsedUsed, |
| long capacityRemaining, long blockPoolUsed, int nodesInService) { |
| this.capacityTotal = capacityTotal; |
| this.capacityUsed = capacityUsed; |
| this.capacityNonDfsUsed = capacityNonDfsUsedUsed; |
| this.capacityRemaining = capacityRemaining; |
| this.blockPoolUsed = blockPoolUsed; |
| this.nodesInService = nodesInService; |
| } |
| |
| public long getCapacityTotal() { |
| return capacityTotal; |
| } |
| |
| public long getCapacityUsed() { |
| return capacityUsed; |
| } |
| |
| public long getCapacityNonDfsUsed() { |
| return capacityNonDfsUsed; |
| } |
| |
| public long getCapacityRemaining() { |
| return capacityRemaining; |
| } |
| |
| public long getBlockPoolUsed() { |
| return blockPoolUsed; |
| } |
| |
| public int getNodesInService() { |
| return nodesInService; |
| } |
| |
| StorageTypeStats() {} |
| |
| StorageTypeStats(StorageTypeStats other) { |
| capacityTotal = other.capacityTotal; |
| capacityUsed = other.capacityUsed; |
| capacityNonDfsUsed = other.capacityNonDfsUsed; |
| capacityRemaining = other.capacityRemaining; |
| blockPoolUsed = other.blockPoolUsed; |
| nodesInService = other.nodesInService; |
| } |
| |
| void addStorage(final DatanodeStorageInfo info, |
| final DatanodeDescriptor node) { |
| capacityUsed += info.getDfsUsed(); |
| capacityNonDfsUsed += info.getNonDfsUsed(); |
| blockPoolUsed += info.getBlockPoolUsed(); |
| if (node.isInService()) { |
| capacityTotal += info.getCapacity(); |
| capacityRemaining += info.getRemaining(); |
| } else { |
| capacityTotal += info.getDfsUsed(); |
| } |
| } |
| |
| void addNode(final DatanodeDescriptor node) { |
| if (node.isInService()) { |
| nodesInService++; |
| } |
| } |
| |
| void subtractStorage(final DatanodeStorageInfo info, |
| final DatanodeDescriptor node) { |
| capacityUsed -= info.getDfsUsed(); |
| capacityNonDfsUsed -= info.getNonDfsUsed(); |
| blockPoolUsed -= info.getBlockPoolUsed(); |
| if (node.isInService()) { |
| capacityTotal -= info.getCapacity(); |
| capacityRemaining -= info.getRemaining(); |
| } else { |
| capacityTotal -= info.getDfsUsed(); |
| } |
| } |
| |
| void subtractNode(final DatanodeDescriptor node) { |
| if (node.isInService()) { |
| nodesInService--; |
| } |
| } |
| } |