| /* |
| * 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.flink.tsfile; |
| |
| import org.apache.iotdb.flink.tsfile.util.TSFileConfigUtil; |
| import org.apache.iotdb.hadoop.fileSystem.HDFSOutput; |
| |
| import org.apache.flink.api.common.io.FileOutputFormat; |
| import org.apache.flink.core.fs.Path; |
| import org.apache.flink.runtime.util.HadoopUtils; |
| import org.apache.flink.util.Preconditions; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.tsfile.common.conf.TSFileConfig; |
| import org.apache.tsfile.write.TsFileWriter; |
| import org.apache.tsfile.write.schema.Schema; |
| import org.apache.tsfile.write.writer.LocalTsFileOutput; |
| import org.apache.tsfile.write.writer.TsFileOutput; |
| |
| import javax.annotation.Nullable; |
| |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.lang.reflect.Field; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.util.Optional; |
| |
| /** |
| * The abstract base class of the output formats which write data to TsFile. |
| * |
| * @param <T> The input data type. |
| */ |
| public abstract class TsFileOutputFormat<T> extends FileOutputFormat<T> { |
| |
| protected Schema schema; |
| @Nullable protected TSFileConfig config; |
| |
| protected transient Configuration hadoopConf = null; |
| private transient FileOutputStream fos = null; |
| protected transient TsFileWriter writer = null; |
| |
| protected TsFileOutputFormat(String path, Schema schema, TSFileConfig config) { |
| super(path == null ? null : new Path(path)); |
| this.schema = Preconditions.checkNotNull(schema); |
| this.config = config; |
| } |
| |
| @Override |
| public void configure(org.apache.flink.configuration.Configuration flinkConfiguration) { |
| super.configure(flinkConfiguration); |
| hadoopConf = HadoopUtils.getHadoopConfiguration(flinkConfiguration); |
| } |
| |
| @Override |
| public void open(int taskNumber, int numTasks) throws IOException { |
| super.open(taskNumber, numTasks); |
| if (config != null) { |
| TSFileConfigUtil.setGlobalTSFileConfig(config); |
| } |
| // Use TsFile API to write instead of FSDataOutputStream. |
| this.stream.close(); |
| Path actualFilePath = getAcutalFilePath(); |
| TsFileOutput out = null; |
| try { |
| if (actualFilePath.getFileSystem().isDistributedFS()) { |
| // HDFS |
| out = |
| new HDFSOutput( |
| new org.apache.hadoop.fs.Path(new URI(actualFilePath.getPath())), hadoopConf, true); |
| } else { |
| // Local File System |
| fos = new FileOutputStream(actualFilePath.getPath()); |
| out = new LocalTsFileOutput(fos); |
| } |
| } catch (URISyntaxException e) { |
| throw new RuntimeException(e); |
| } |
| writer = new TsFileWriter(out, schema); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| super.close(); |
| try { |
| if (writer != null) { |
| writer.close(); |
| writer = null; |
| } |
| } finally { |
| if (fos != null) { |
| fos.close(); |
| fos = null; |
| } |
| } |
| } |
| |
| @Override |
| protected String getDirectoryFileName(int taskNumber) { |
| return super.getDirectoryFileName(taskNumber) + ".tsfile"; |
| } |
| |
| protected Path getAcutalFilePath() { |
| try { |
| Field field = FileOutputFormat.class.getDeclaredField("actualFilePath"); |
| field.setAccessible(true); |
| return (Path) field.get(this); |
| } catch (NoSuchFieldException | IllegalAccessException e) { |
| throw new RuntimeException("Get actual file path failed!", e); |
| } |
| } |
| |
| public Schema getSchema() { |
| return schema; |
| } |
| |
| public Optional<TSFileConfig> getConfig() { |
| return Optional.ofNullable(config); |
| } |
| } |