| /* |
| * 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.solr.store.hdfs; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.util.EnumSet; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.CreateFlag; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.FsServerDefaults; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.permission.FsPermission; |
| import org.apache.lucene.store.OutputStreamIndexOutput; |
| |
| /** |
| * @lucene.experimental |
| * @deprecated since 8.6; see <a href="https://cwiki.apache.org/confluence/display/SOLR/Deprecations">Deprecations</a> |
| */ |
| public class HdfsFileWriter extends OutputStreamIndexOutput { |
| |
| public static final String HDFS_SYNC_BLOCK = "solr.hdfs.sync.block"; |
| public static final int BUFFER_SIZE = 16384; |
| |
| public HdfsFileWriter(FileSystem fileSystem, Path path, String name) throws IOException { |
| super("fileSystem=" + fileSystem + " path=" + path, name, getOutputStream(fileSystem, path), BUFFER_SIZE); |
| } |
| |
| private static final OutputStream getOutputStream(FileSystem fileSystem, Path path) throws IOException { |
| Configuration conf = fileSystem.getConf(); |
| FsServerDefaults fsDefaults = fileSystem.getServerDefaults(path); |
| short replication = fileSystem.getDefaultReplication(path); |
| EnumSet<CreateFlag> flags = EnumSet.of(CreateFlag.CREATE); |
| if (Boolean.getBoolean(HDFS_SYNC_BLOCK)) { |
| flags.add(CreateFlag.SYNC_BLOCK); |
| } |
| return fileSystem.create(path, FsPermission.getDefault() |
| .applyUMask(FsPermission.getUMask(conf)), flags, fsDefaults |
| .getFileBufferSize(), replication, fsDefaults |
| .getBlockSize(), null); |
| } |
| } |