| /* |
| * 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.lucene.replicator; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| |
| import org.apache.lucene.replicator.ReplicationClient.SourceDirectoryFactory; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.store.FSDirectory; |
| import org.apache.lucene.util.IOUtils; |
| |
| /** |
| * A {@link SourceDirectoryFactory} which returns {@link FSDirectory} under a |
| * dedicated session directory. When a session is over, the entire directory is |
| * deleted. |
| * |
| * @lucene.experimental |
| */ |
| public class PerSessionDirectoryFactory implements SourceDirectoryFactory { |
| |
| private final Path workDir; |
| |
| /** Constructor with the given sources mapping. */ |
| public PerSessionDirectoryFactory(Path workDir) { |
| this.workDir = workDir; |
| } |
| |
| @Override |
| public Directory getDirectory(String sessionID, String source) throws IOException { |
| Path sessionDir = workDir.resolve(sessionID); |
| Files.createDirectories(sessionDir); |
| Path sourceDir = sessionDir.resolve(source); |
| Files.createDirectories(sourceDir); |
| return FSDirectory.open(sourceDir); |
| } |
| |
| @Override |
| public void cleanupSession(String sessionID) throws IOException { |
| if (sessionID.isEmpty()) { // protect against deleting workDir entirely! |
| throw new IllegalArgumentException("sessionID cannot be empty"); |
| } |
| IOUtils.rm(workDir.resolve(sessionID)); |
| } |
| |
| } |