| /** |
| * 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.federation.router; |
| |
| import org.apache.hadoop.fs.QuotaUsage; |
| import org.apache.hadoop.hdfs.protocol.DSQuotaExceededException; |
| import org.apache.hadoop.hdfs.protocol.HdfsConstants; |
| import org.apache.hadoop.hdfs.protocol.NSQuotaExceededException; |
| import org.apache.hadoop.hdfs.server.namenode.DirectoryWithQuotaFeature; |
| import org.apache.hadoop.hdfs.server.namenode.Quota; |
| import org.apache.hadoop.util.StringUtils; |
| |
| /** |
| * The subclass of {@link QuotaUsage} used in Router-based federation. |
| */ |
| public final class RouterQuotaUsage extends QuotaUsage { |
| |
| /** Default quota usage count. */ |
| public static final long QUOTA_USAGE_COUNT_DEFAULT = 0; |
| |
| private RouterQuotaUsage(Builder builder) { |
| super(builder); |
| } |
| |
| /** Build the instance based on the builder. */ |
| public static class Builder extends QuotaUsage.Builder { |
| |
| public RouterQuotaUsage build() { |
| return new RouterQuotaUsage(this); |
| } |
| |
| @Override |
| public Builder fileAndDirectoryCount(long count) { |
| super.fileAndDirectoryCount(count); |
| return this; |
| } |
| |
| @Override |
| public Builder quota(long quota) { |
| super.quota(quota); |
| return this; |
| } |
| |
| @Override |
| public Builder spaceConsumed(long spaceConsumed) { |
| super.spaceConsumed(spaceConsumed); |
| return this; |
| } |
| |
| @Override |
| public Builder spaceQuota(long spaceQuota) { |
| super.spaceQuota(spaceQuota); |
| return this; |
| } |
| } |
| |
| /** |
| * Verify if namespace quota is violated once quota is set. Relevant |
| * method {@link DirectoryWithQuotaFeature#verifyNamespaceQuota}. |
| * @throws NSQuotaExceededException |
| */ |
| public void verifyNamespaceQuota() throws NSQuotaExceededException { |
| if (Quota.isViolated(getQuota(), getFileAndDirectoryCount())) { |
| throw new NSQuotaExceededException(getQuota(), |
| getFileAndDirectoryCount()); |
| } |
| } |
| |
| /** |
| * Verify if storage space quota is violated once quota is set. Relevant |
| * method {@link DirectoryWithQuotaFeature#verifyStoragespaceQuota}. |
| * @throws DSQuotaExceededException |
| */ |
| public void verifyStoragespaceQuota() throws DSQuotaExceededException { |
| if (Quota.isViolated(getSpaceQuota(), getSpaceConsumed())) { |
| throw new DSQuotaExceededException(getSpaceQuota(), getSpaceConsumed()); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| String nsQuota = String.valueOf(getQuota()); |
| String nsCount = String.valueOf(getFileAndDirectoryCount()); |
| if (getQuota() == HdfsConstants.QUOTA_RESET) { |
| nsQuota = "-"; |
| nsCount = "-"; |
| } |
| |
| String ssQuota = StringUtils.byteDesc(getSpaceQuota()); |
| String ssCount = StringUtils.byteDesc(getSpaceConsumed()); |
| if (getSpaceQuota() == HdfsConstants.QUOTA_RESET) { |
| ssQuota = "-"; |
| ssCount = "-"; |
| } |
| |
| StringBuilder str = new StringBuilder(); |
| str.append("[NsQuota: ").append(nsQuota).append("/") |
| .append(nsCount); |
| str.append(", SsQuota: ").append(ssQuota) |
| .append("/").append(ssCount) |
| .append("]"); |
| return str.toString(); |
| } |
| } |