| /** |
| * 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.hbase.replication.regionserver; |
| |
| import java.util.OptionalLong; |
| |
| import org.apache.hadoop.fs.Path; |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| /** |
| * Used by replication to prevent replicating unacked log entries. See |
| * https://issues.apache.org/jira/browse/HBASE-14004 for more details. |
| * WALFileLengthProvider exists because we do not want to reference WALFactory and WALProvider |
| * directly in the replication code so in the future it will be easier to decouple them. |
| * Each walProvider will have its own implementation. |
| */ |
| @InterfaceAudience.Private |
| @FunctionalInterface |
| public interface WALFileLengthProvider { |
| |
| OptionalLong getLogFileSizeIfBeingWritten(Path path); |
| } |