| /** |
| * 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; |
| |
| /** |
| * Describes a path-based cache directive. |
| */ |
| @InterfaceStability.Evolving |
| @InterfaceAudience.Public |
| public class CacheDirectiveStats { |
| public static class Builder { |
| private long bytesNeeded; |
| private long bytesCached; |
| private long filesNeeded; |
| private long filesCached; |
| private boolean hasExpired; |
| |
| /** |
| * Builds a new CacheDirectiveStats populated with the set properties. |
| * |
| * @return New CacheDirectiveStats. |
| */ |
| public CacheDirectiveStats build() { |
| return new CacheDirectiveStats(bytesNeeded, bytesCached, filesNeeded, |
| filesCached, hasExpired); |
| } |
| |
| /** |
| * Creates an empty builder. |
| */ |
| public Builder() { |
| } |
| |
| /** |
| * Sets the bytes needed by this directive. |
| * |
| * @param bytesNeeded The bytes needed. |
| * @return This builder, for call chaining. |
| */ |
| public Builder setBytesNeeded(long bytesNeeded) { |
| this.bytesNeeded = bytesNeeded; |
| return this; |
| } |
| |
| /** |
| * Sets the bytes cached by this directive. |
| * |
| * @param bytesCached The bytes cached. |
| * @return This builder, for call chaining. |
| */ |
| public Builder setBytesCached(long bytesCached) { |
| this.bytesCached = bytesCached; |
| return this; |
| } |
| |
| /** |
| * Sets the files needed by this directive. |
| * @param filesNeeded The number of files needed |
| * @return This builder, for call chaining. |
| */ |
| public Builder setFilesNeeded(long filesNeeded) { |
| this.filesNeeded = filesNeeded; |
| return this; |
| } |
| |
| /** |
| * Sets the files cached by this directive. |
| * |
| * @param filesCached The number of files cached. |
| * @return This builder, for call chaining. |
| */ |
| public Builder setFilesCached(long filesCached) { |
| this.filesCached = filesCached; |
| return this; |
| } |
| |
| /** |
| * Sets whether this directive has expired. |
| * |
| * @param hasExpired if this directive has expired |
| * @return This builder, for call chaining. |
| */ |
| public Builder setHasExpired(boolean hasExpired) { |
| this.hasExpired = hasExpired; |
| return this; |
| } |
| } |
| |
| private final long bytesNeeded; |
| private final long bytesCached; |
| private final long filesNeeded; |
| private final long filesCached; |
| private final boolean hasExpired; |
| |
| private CacheDirectiveStats(long bytesNeeded, long bytesCached, |
| long filesNeeded, long filesCached, boolean hasExpired) { |
| this.bytesNeeded = bytesNeeded; |
| this.bytesCached = bytesCached; |
| this.filesNeeded = filesNeeded; |
| this.filesCached = filesCached; |
| this.hasExpired = hasExpired; |
| } |
| |
| /** |
| * @return The bytes needed. |
| */ |
| public long getBytesNeeded() { |
| return bytesNeeded; |
| } |
| |
| /** |
| * @return The bytes cached. |
| */ |
| public long getBytesCached() { |
| return bytesCached; |
| } |
| |
| /** |
| * @return The number of files needed. |
| */ |
| public long getFilesNeeded() { |
| return filesNeeded; |
| } |
| |
| /** |
| * @return The number of files cached. |
| */ |
| public long getFilesCached() { |
| return filesCached; |
| } |
| |
| /** |
| * @return Whether this directive has expired. |
| */ |
| public boolean hasExpired() { |
| return hasExpired; |
| } |
| |
| @Override |
| public String toString() { |
| return "{" + "bytesNeeded: " + bytesNeeded + ", " |
| + "bytesCached: " + bytesCached + ", " |
| + "filesNeeded: " + filesNeeded + ", " |
| + "filesCached: " + filesCached + ", " |
| + "hasExpired: " + hasExpired + "}"; |
| } |
| } |