| /* |
| * 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.accumulo.manager.tableOps.tableImport; |
| |
| import java.io.IOException; |
| import java.util.Set; |
| |
| import org.apache.accumulo.core.Constants; |
| import org.apache.accumulo.fate.Repo; |
| import org.apache.accumulo.manager.Manager; |
| import org.apache.accumulo.manager.tableOps.ManagerRepo; |
| import org.apache.accumulo.server.ServerConstants; |
| import org.apache.accumulo.server.tablets.UniqueNameAllocator; |
| import org.apache.hadoop.fs.Path; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| class CreateImportDir extends ManagerRepo { |
| private static final Logger log = LoggerFactory.getLogger(CreateImportDir.class); |
| private static final long serialVersionUID = 1L; |
| |
| private ImportedTableInfo tableInfo; |
| |
| CreateImportDir(ImportedTableInfo ti) { |
| this.tableInfo = ti; |
| } |
| |
| @Override |
| public Repo<Manager> call(long tid, Manager manager) throws Exception { |
| |
| Set<String> tableDirs = ServerConstants.getTablesDirs(manager.getContext()); |
| |
| create(tableDirs, manager); |
| |
| return new MapImportFileNames(tableInfo); |
| } |
| |
| /** |
| * Generate destination directory names under the accumulo table directories imported rfiles. |
| * These directories must be on the same volume as each file being imported. |
| * |
| * @param tableDirs |
| * the set of table directories on HDFS where files will be moved e.g: |
| * hdfs://volume1/accumulo/tables/ |
| * @param manager |
| * the manager instance performing the table import. |
| * @throws IOException |
| * if any import directory does not reside on a volume configured for accumulo. |
| */ |
| void create(Set<String> tableDirs, Manager manager) throws IOException { |
| UniqueNameAllocator namer = manager.getContext().getUniqueNameAllocator(); |
| |
| for (ImportedTableInfo.DirectoryMapping dm : tableInfo.directories) { |
| Path exportDir = new Path(dm.exportDir); |
| |
| log.info("Looking for matching filesystem for {} from options {}", exportDir, tableDirs); |
| Path base = manager.getVolumeManager().matchingFileSystem(exportDir, tableDirs); |
| if (base == null) { |
| throw new IOException( |
| dm.exportDir + " is not in the same file system as any volume configured for Accumulo"); |
| } |
| log.info("Chose base table directory of {}", base); |
| Path directory = new Path(base, tableInfo.tableId.canonical()); |
| |
| Path newBulkDir = new Path(directory, Constants.BULK_PREFIX + namer.getNextName()); |
| |
| dm.importDir = newBulkDir.toString(); |
| |
| log.info("Using import dir: {}", dm.importDir); |
| } |
| } |
| } |