| /* |
| * 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.jackrabbit.oak.segment; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| |
| import java.io.File; |
| |
| public class FileStoreHelper { |
| |
| public static File isValidFileStoreOrFail(File store) { |
| checkArgument(isValidFileStore(store), "Invalid FileStore directory " |
| + store); |
| return store; |
| } |
| |
| /** |
| * Checks if the provided directory is a valid FileStore |
| * |
| * @return true if the provided directory is a valid FileStore |
| */ |
| public static boolean isValidFileStore(File store) { |
| if (!store.exists()) { |
| return false; |
| } |
| if (!store.isDirectory()) { |
| return false; |
| } |
| // for now the only check is the existence of the journal file |
| for (String f : store.list()) { |
| if ("journal.log".equals(f)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |