| /** |
| * 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.fs; |
| |
| import java.io.Serializable; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| |
| /** |
| * Opaque, serializable reference to an entity in the FileSystem. May contain |
| * metadata sufficient to resolve or verify subsequent accesses independent of |
| * other modifications to the FileSystem. |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Evolving |
| @FunctionalInterface |
| public interface PathHandle extends Serializable { |
| |
| /** |
| * @return Serialized form in bytes. |
| */ |
| default byte[] toByteArray() { |
| ByteBuffer bb = bytes(); |
| byte[] ret = new byte[bb.remaining()]; |
| bb.get(ret); |
| return ret; |
| } |
| |
| /** |
| * Get the bytes of this path handle. |
| * @return the bytes to get to the process completing the upload. |
| */ |
| ByteBuffer bytes(); |
| |
| @Override |
| boolean equals(Object other); |
| |
| } |