001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.master.region; 019 020import java.io.IOException; 021import org.apache.hadoop.fs.FileStatus; 022import org.apache.hadoop.fs.FileSystem; 023import org.apache.hadoop.fs.Path; 024import org.apache.yetus.audience.InterfaceAudience; 025import org.slf4j.Logger; 026import org.slf4j.LoggerFactory; 027 028@InterfaceAudience.Private 029final class MasterRegionUtils { 030 031 private static final Logger LOG = LoggerFactory.getLogger(MasterRegionUtils.class); 032 033 private MasterRegionUtils() { 034 } 035 036 static void moveFilesUnderDir(FileSystem fs, Path src, Path dst, String suffix) 037 throws IOException { 038 if (!fs.exists(dst) && !fs.mkdirs(dst)) { 039 LOG.warn("Failed to create dir {}", dst); 040 return; 041 } 042 FileStatus[] archivedWALFiles = fs.listStatus(src); 043 if (archivedWALFiles == null) { 044 return; 045 } 046 for (FileStatus status : archivedWALFiles) { 047 Path file = status.getPath(); 048 Path newFile = new Path(dst, file.getName() + suffix); 049 if (fs.rename(file, newFile)) { 050 LOG.info("Moved {} to {}", file, newFile); 051 } else { 052 LOG.warn("Failed to move from {} to {}", file, newFile); 053 } 054 } 055 } 056}