| /* |
| * 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.iotdb.tsfile.utils; |
| |
| import org.apache.iotdb.tsfile.common.conf.TSFileConfig; |
| import org.apache.iotdb.tsfile.common.conf.TSFileDescriptor; |
| import org.apache.iotdb.tsfile.fileSystem.FSPath; |
| import org.apache.iotdb.tsfile.fileSystem.FSType; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Arrays; |
| |
| public class FSUtils { |
| private static final Logger logger = LoggerFactory.getLogger(FSUtils.class); |
| private static final TSFileConfig config = TSFileDescriptor.getInstance().getConfig(); |
| private static final FSType[] fsTypes = {FSType.OBJECT_STORAGE, FSType.HDFS}; |
| public static final int PATH_FROM_SEQUENCE_LEVEL = 5; |
| public static final int PATH_FROM_DATABASE_LEVEL = 4; |
| public static final String[] fsPrefix = {"os://", "hdfs://"}; |
| public static final String OS_FILE_SEPARATOR = "/"; |
| private static final String[] fsFileClassName = { |
| config.getObjectStorageFile(), config.getHdfsFile() |
| }; |
| |
| private static final boolean[] isSupported = new boolean[fsTypes.length]; |
| private static final Class<?>[] fsFileClass = new Class[fsTypes.length]; |
| |
| private FSUtils() {} |
| |
| static { |
| reload(); |
| } |
| |
| public static synchronized void reload() { |
| fsFileClassName[0] = config.getObjectStorageFile(); |
| fsFileClassName[1] = config.getHdfsFile(); |
| for (FSType fsType : config.getTSFileStorageFs()) { |
| if (fsType == FSType.OBJECT_STORAGE) { |
| isSupported[0] = true; |
| } else if (fsType == FSType.HDFS) { |
| isSupported[1] = true; |
| } |
| } |
| |
| for (int i = 0; i < fsTypes.length; ++i) { |
| if (!isSupported[i]) { |
| continue; |
| } |
| try { |
| fsFileClass[i] = Class.forName(fsFileClassName[i]); |
| } catch (ClassNotFoundException e) { |
| logger.error( |
| "Failed to get " |
| + fsTypes[i].name() |
| + " file system. Please check your dependency of " |
| + fsTypes[i].name() |
| + " module.", |
| e); |
| } |
| } |
| } |
| |
| public static FSType getFSType(File file) { |
| for (int i = 0; i < fsTypes.length; ++i) { |
| if (fsFileClass[i] != null && fsFileClass[i].isInstance(file)) { |
| return fsTypes[i]; |
| } |
| } |
| return FSType.LOCAL; |
| } |
| |
| public static FSType getFSType(String fsPath) { |
| for (int i = 0; i < fsTypes.length; ++i) { |
| if (fsPath.startsWith(fsPrefix[i])) { |
| return fsTypes[i]; |
| } |
| } |
| return FSType.LOCAL; |
| } |
| |
| public static String getPath(String fsPath) { |
| for (int i = 0; i < fsTypes.length; ++i) { |
| if (fsPath.startsWith(fsPrefix[i])) { |
| return fsPath.substring(fsPrefix[i].length()); |
| } |
| } |
| return fsPath; |
| } |
| |
| public static FSPath parse(String fsPath) { |
| FSType type = FSType.LOCAL; |
| String path = fsPath; |
| for (int i = 0; i < fsTypes.length; ++i) { |
| if (fsPath.startsWith(fsPrefix[i])) { |
| type = fsTypes[i]; |
| break; |
| } |
| } |
| return new FSPath(type, path); |
| } |
| |
| public static String getOSDefaultPath(String bucket, int dataNodeId) { |
| return new FSPath(FSType.OBJECT_STORAGE, fsPrefix[0] + bucket + OS_FILE_SEPARATOR + dataNodeId) |
| .getPath(); |
| } |
| |
| public static FSPath parseLocalTsFile2OSFile(File localFile, String bucket, int dataNodeId) |
| throws IOException { |
| return new FSPath( |
| FSType.OBJECT_STORAGE, |
| fsPrefix[0] |
| + bucket |
| + OS_FILE_SEPARATOR |
| + dataNodeId |
| + OS_FILE_SEPARATOR |
| + getLocalTsFileShortPath(localFile, PATH_FROM_SEQUENCE_LEVEL)); |
| } |
| |
| public static String getLocalTsFileShortPath(File localTsFile, int level) throws IOException { |
| String[] filePathSplits = FilePathUtils.splitTsFilePath(localTsFile.getCanonicalPath()); |
| return String.join( |
| OS_FILE_SEPARATOR, |
| Arrays.copyOfRange(filePathSplits, filePathSplits.length - level, filePathSplits.length)); |
| } |
| |
| public static boolean isLocal(String fsPath) { |
| return getFSType(fsPath) == FSType.LOCAL; |
| } |
| |
| public static boolean isLocal(File file) { |
| return getFSType(file) == FSType.LOCAL; |
| } |
| } |