| /* |
| * 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.iotdb.tsfile.fileSystem.fileOutputFactory; |
| |
| import org.apache.iotdb.tsfile.common.conf.TSFileDescriptor; |
| import org.apache.iotdb.tsfile.write.writer.TsFileOutput; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.InvocationTargetException; |
| |
| public class HDFSOutputFactory implements FileOutputFactory { |
| |
| private static final Logger logger = LoggerFactory.getLogger(HDFSOutputFactory.class); |
| private Constructor constructor; |
| |
| public HDFSOutputFactory() { |
| try { |
| Class<?> clazz = |
| Class.forName(TSFileDescriptor.getInstance().getConfig().getHdfsTsFileOutput()); |
| constructor = clazz.getConstructor(String.class, boolean.class); |
| } catch (ClassNotFoundException | NoSuchMethodException e) { |
| logger.error( |
| "Failed to get HDFSInput in Hadoop file system. Please check your dependency of Hadoop module.", |
| e); |
| } |
| } |
| |
| @Override |
| public TsFileOutput getTsFileOutput(String filePath, boolean append) { |
| try { |
| return (TsFileOutput) constructor.newInstance(filePath, !append); |
| } catch (InstantiationException | InvocationTargetException | IllegalAccessException e) { |
| logger.error( |
| "Failed to get TsFile output of file: {}. Please check your dependency of Hadoop module.", |
| filePath, |
| e); |
| return null; |
| } |
| } |
| } |