| /* |
| * 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.hbase; |
| |
| import edu.umd.cs.findbugs.annotations.CheckForNull; |
| import java.io.IOException; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.PathFilter; |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.apache.yetus.audience.InterfaceStability; |
| |
| /** |
| * COPIED from org.apache.hadoop.hbase.util.AbstractFileStatusFilter because the original class was |
| * tagged with @InterfaceAudience.Private. Typical base class for file status filter. Works more |
| * efficiently when filtering file statuses, otherwise implementation will need to lookup filestatus |
| * for the path which will be expensive. |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Evolving |
| public abstract class HBCKAbstractFileStatusFilter implements PathFilter, HBCKFileStatusFilter { |
| |
| /** |
| * Filters out a path. Can be given an optional directory hint to avoid filestatus lookup. |
| * @param p A filesystem path |
| * @param isDir An optional boolean indicating whether the path is a directory or not |
| * @return true if the path is accepted, false if the path is filtered out |
| */ |
| protected abstract boolean accept(Path p, @CheckForNull Boolean isDir); |
| |
| @Override |
| public boolean accept(FileStatus f) { |
| return accept(f.getPath(), f.isDirectory()); |
| } |
| |
| @Override |
| public boolean accept(Path p) { |
| return accept(p, null); |
| } |
| |
| protected boolean isFile(FileSystem fs, @CheckForNull Boolean isDir, Path p) throws IOException { |
| return !isDirectory(fs, isDir, p); |
| } |
| |
| protected boolean isDirectory(FileSystem fs, @CheckForNull Boolean isDir, Path p) |
| throws IOException { |
| return isDir != null ? isDir : fs.isDirectory(p); |
| } |
| } |