| /* |
| * 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.flink.core.fs.local; |
| |
| import org.apache.flink.annotation.Internal; |
| import org.apache.flink.core.fs.RecoverableWriter.CommitRecoverable; |
| import org.apache.flink.core.fs.RecoverableWriter.ResumeRecoverable; |
| |
| import java.io.File; |
| |
| import static org.apache.flink.util.Preconditions.checkArgument; |
| import static org.apache.flink.util.Preconditions.checkNotNull; |
| |
| /** |
| * An implementation of the resume and commit descriptor objects for local recoverable streams. |
| */ |
| @Internal |
| class LocalRecoverable implements CommitRecoverable, ResumeRecoverable { |
| |
| /** The file path for the final result file. */ |
| private final File targetFile; |
| |
| /** The file path of the staging file. */ |
| private final File tempFile; |
| |
| /** The position to resume from. */ |
| private final long offset; |
| |
| /** |
| * Creates a resumable for the given file at the given position. |
| * |
| * @param targetFile The file to resume. |
| * @param offset The position to resume from. |
| */ |
| LocalRecoverable(File targetFile, File tempFile, long offset) { |
| checkArgument(offset >= 0, "offset must be >= 0"); |
| this.targetFile = checkNotNull(targetFile, "targetFile"); |
| this.tempFile = checkNotNull(tempFile, "tempFile"); |
| this.offset = offset; |
| } |
| |
| public File targetFile() { |
| return targetFile; |
| } |
| |
| public File tempFile() { |
| return tempFile; |
| } |
| |
| public long offset() { |
| return offset; |
| } |
| |
| @Override |
| public String toString() { |
| return "LocalRecoverable " + tempFile + " @ " + offset + " -> " + targetFile; |
| } |
| } |