| /** |
| * 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.namenode; |
| |
| import org.apache.hadoop.fs.StorageType; |
| import org.apache.hadoop.hdfs.util.EnumCounters; |
| |
| /** |
| * The counter to be computed for content types such as file, directory and symlink, |
| * and the storage type usage such as SSD, DISK, ARCHIVE. |
| */ |
| public class ContentCounts { |
| private EnumCounters<Content> contents; |
| private EnumCounters<StorageType> types; |
| |
| public static class Builder { |
| private EnumCounters<Content> contents; |
| // storage spaces used by corresponding storage types |
| private EnumCounters<StorageType> types; |
| |
| public Builder() { |
| contents = new EnumCounters<Content>(Content.class); |
| types = new EnumCounters<StorageType>(StorageType.class); |
| } |
| |
| public Builder file(long file) { |
| contents.set(Content.FILE, file); |
| return this; |
| } |
| |
| public Builder directory(long directory) { |
| contents.set(Content.DIRECTORY, directory); |
| return this; |
| } |
| |
| public Builder symlink(long symlink) { |
| contents.set(Content.SYMLINK, symlink); |
| return this; |
| } |
| |
| public Builder length(long length) { |
| contents.set(Content.LENGTH, length); |
| return this; |
| } |
| |
| public Builder storagespace(long storagespace) { |
| contents.set(Content.DISKSPACE, storagespace); |
| return this; |
| } |
| |
| public Builder snapshot(long snapshot) { |
| contents.set(Content.SNAPSHOT, snapshot); |
| return this; |
| } |
| |
| public Builder snapshotable_directory(long snapshotable_directory) { |
| contents.set(Content.SNAPSHOTTABLE_DIRECTORY, snapshotable_directory); |
| return this; |
| } |
| |
| public ContentCounts build() { |
| return new ContentCounts(contents, types); |
| } |
| } |
| |
| private ContentCounts(EnumCounters<Content> contents, |
| EnumCounters<StorageType> types) { |
| this.contents = contents; |
| this.types = types; |
| } |
| |
| // Get the number of files. |
| public long getFileCount() { |
| return contents.get(Content.FILE); |
| } |
| |
| // Get the number of directories. |
| public long getDirectoryCount() { |
| return contents.get(Content.DIRECTORY); |
| } |
| |
| // Get the number of symlinks. |
| public long getSymlinkCount() { |
| return contents.get(Content.SYMLINK); |
| } |
| |
| // Get the total of file length in bytes. |
| public long getLength() { |
| return contents.get(Content.LENGTH); |
| } |
| |
| // Get the total of storage space usage in bytes including replication. |
| public long getStoragespace() { |
| return contents.get(Content.DISKSPACE); |
| } |
| |
| // Get the number of snapshots |
| public long getSnapshotCount() { |
| return contents.get(Content.SNAPSHOT); |
| } |
| |
| // Get the number of snapshottable directories. |
| public long getSnapshotableDirectoryCount() { |
| return contents.get(Content.SNAPSHOTTABLE_DIRECTORY); |
| } |
| |
| public long[] getTypeSpaces() { |
| return types.asArray(); |
| } |
| |
| public long getTypeSpace(StorageType t) { |
| return types.get(t); |
| } |
| |
| public void addContent(Content c, long val) { |
| contents.add(c, val); |
| } |
| |
| public void addContents(ContentCounts that) { |
| contents.add(that.contents); |
| types.add(that.types); |
| } |
| |
| public void addTypeSpace(StorageType t, long val) { |
| types.add(t, val); |
| } |
| |
| public void addTypeSpaces(EnumCounters<StorageType> that) { |
| this.types.add(that); |
| } |
| } |