org.apache.hadoop.hdfs.protocol.DatanodeVolumeInfo Maven / Gradle / Ivy
/**
* 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.protocol;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.fs.StorageType;
import org.apache.hadoop.util.StringUtils;
/**
* Locally available datanode volume information.
*/
@InterfaceAudience.Private
@InterfaceStability.Evolving
public class DatanodeVolumeInfo {
private long usedSpace;
private long freeSpace;
private long reservedSpace;
private long reservedSpaceForReplicas;
private long numBlocks;
private StorageType storageType;
private String path;
public DatanodeVolumeInfo(String path, long usedSpace, long freeSpace,
long reservedSpace, long reservedSpaceForReplicas, long numBlocks,
StorageType type) {
this.usedSpace = usedSpace;
this.freeSpace = freeSpace;
this.reservedSpace = reservedSpace;
this.reservedSpaceForReplicas = reservedSpaceForReplicas;
this.numBlocks = numBlocks;
this.storageType = type;
this.path = path;
}
/** get used space. */
public long getUsedSpace() {
return usedSpace;
}
/**
* get free space.
*/
public long getFreeSpace() {
return freeSpace;
}
/**
* get reserved space.
*/
public long getReservedSpace() {
return reservedSpace;
}
/**
* get reserved space for replicas.
*/
public long getReservedSpaceForReplicas() {
return reservedSpaceForReplicas;
}
/**
* get number of blocks.
*/
public long getNumBlocks() {
return numBlocks;
}
/**
* get storage type.
*/
public StorageType getStorageType() {
return storageType;
}
/**
* get volume path.
*/
public String getPath() {
return path;
}
/**
* get volume report.
*/
public String getDatanodeVolumeReport() {
StringBuilder report = new StringBuilder();
report
.append("Directory: " + path)
.append("\nStorageType: " + storageType)
.append(
"\nCapacity Used: " + usedSpace + "("
+ StringUtils.byteDesc(usedSpace) + ")")
.append(
"\nCapacity Left: " + freeSpace + "("
+ StringUtils.byteDesc(freeSpace) + ")")
.append(
"\nCapacity Reserved: " + reservedSpace + "("
+ StringUtils.byteDesc(reservedSpace) + ")")
.append(
"\nReserved Space for Replicas: " + reservedSpaceForReplicas + "("
+ StringUtils.byteDesc(reservedSpaceForReplicas) + ")")
.append("\nBlocks: " + numBlocks);
return report.toString();
}
}