| /* |
| * 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.ignite.internal.processors.igfs.secondary.local; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.FileSystems; |
| import java.nio.file.Files; |
| import java.nio.file.attribute.BasicFileAttributeView; |
| import java.nio.file.attribute.BasicFileAttributes; |
| import java.nio.file.attribute.GroupPrincipal; |
| import java.nio.file.attribute.PosixFileAttributeView; |
| import java.nio.file.attribute.PosixFileAttributes; |
| import java.nio.file.attribute.PosixFilePermission; |
| import java.nio.file.attribute.UserPrincipalLookupService; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import org.apache.ignite.igfs.IgfsException; |
| import org.apache.ignite.internal.processors.igfs.IgfsUtils; |
| import org.apache.ignite.internal.util.typedef.internal.U; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Various utility methods for local file system. |
| */ |
| public class LocalFileSystemUtils { |
| /** Posix file permissions. */ |
| public static final PosixFilePermission[] POSIX_PERMISSIONS = PosixFilePermission.values(); |
| |
| /** |
| * Update file properties. |
| * |
| * @param file File. |
| * @param grp Group. |
| * @param perm Permissions. |
| */ |
| public static void updateProperties(File file, String grp, String perm) { |
| PosixFileAttributeView attrs = Files.getFileAttributeView(file.toPath(), PosixFileAttributeView.class); |
| |
| if (attrs == null) |
| throw new UnsupportedOperationException("Posix file attributes not available"); |
| |
| if (grp != null) { |
| try { |
| UserPrincipalLookupService lookupService = FileSystems.getDefault().getUserPrincipalLookupService(); |
| |
| GroupPrincipal grp0 = lookupService.lookupPrincipalByGroupName(grp); |
| |
| attrs.setGroup(grp0); |
| } |
| catch (IOException e) { |
| throw new IgfsException("Update the '" + IgfsUtils.PROP_GROUP_NAME + "' property is failed.", e); |
| } |
| } |
| |
| if (perm != null) { |
| int perm0 = Integer.parseInt(perm, 8); |
| |
| Set<PosixFilePermission> permSet = new HashSet<>(9); |
| |
| for (int i = 0; i < LocalFileSystemUtils.POSIX_PERMISSIONS.length; ++i) { |
| if ((perm0 & (1 << i)) != 0) |
| permSet.add(LocalFileSystemUtils.POSIX_PERMISSIONS[i]); |
| } |
| |
| try { |
| attrs.setPermissions(permSet); |
| } |
| catch (IOException e) { |
| throw new IgfsException("Update the '" + IgfsUtils.PROP_PERMISSION + "' property is failed.", e); |
| } |
| } |
| } |
| |
| /** |
| * Get POSIX attributes for file. |
| * |
| * @param file File. |
| * @return PosixFileAttributes. |
| */ |
| @Nullable public static PosixFileAttributes posixAttributes(File file) { |
| PosixFileAttributes attrs = null; |
| |
| try { |
| PosixFileAttributeView view = Files.getFileAttributeView(file.toPath(), PosixFileAttributeView.class); |
| |
| if (view != null) |
| attrs = view.readAttributes(); |
| } |
| catch (IOException e) { |
| throw new IgfsException("Failed to read POSIX attributes: " + file.getAbsolutePath(), e); |
| } |
| |
| return attrs; |
| } |
| |
| /** |
| * Get POSIX attributes for file. |
| * |
| * @param file File. |
| * @return BasicFileAttributes. |
| */ |
| @Nullable public static BasicFileAttributes basicAttributes(File file) { |
| BasicFileAttributes attrs = null; |
| |
| try { |
| BasicFileAttributeView view = Files.getFileAttributeView(file.toPath(), BasicFileAttributeView.class); |
| |
| if (view != null) |
| attrs = view.readAttributes(); |
| } |
| catch (IOException e) { |
| throw new IgfsException("Failed to read basic file attributes: " + file.getAbsolutePath(), e); |
| } |
| |
| return attrs; |
| } |
| |
| /** |
| * Convert POSIX attributes to property map. |
| * |
| * @param attrs Attributes view. |
| * @return IGFS properties map. |
| */ |
| public static Map<String, String> posixAttributesToMap(PosixFileAttributes attrs) { |
| if (attrs == null) |
| return null; |
| |
| Map<String, String> props = U.newHashMap(3); |
| |
| props.put(IgfsUtils.PROP_USER_NAME, attrs.owner().getName()); |
| props.put(IgfsUtils.PROP_GROUP_NAME, attrs.group().getName()); |
| |
| int perm = 0; |
| |
| for (PosixFilePermission p : attrs.permissions()) |
| perm |= (1 << 8 - p.ordinal()); |
| |
| props.put(IgfsUtils.PROP_PERMISSION, '0' + Integer.toOctalString(perm)); |
| |
| return props; |
| } |
| |
| /** |
| * Private constructor. |
| */ |
| private LocalFileSystemUtils() { |
| // No-op. |
| } |
| } |