| /* |
| * 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.hive; |
| |
| import org.apache.iotdb.hadoop.fileSystem.HDFSOutput; |
| import org.apache.iotdb.hadoop.tsfile.record.HDFSTSRecord; |
| import org.apache.iotdb.tsfile.exception.write.WriteProcessException; |
| import org.apache.iotdb.tsfile.write.TsFileWriter; |
| import org.apache.iotdb.tsfile.write.schema.Schema; |
| |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hive.ql.exec.FileSinkOperator; |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.mapred.JobConf; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| |
| /** |
| * The function implement is same as {@link org.apache.iotdb.hadoop.tsfile.TSFRecordWriter} and is |
| * customized for Hive |
| */ |
| public class TSFHiveRecordWriter implements FileSinkOperator.RecordWriter { |
| |
| private static final Logger logger = LoggerFactory.getLogger(TSFHiveRecordWriter.class); |
| |
| private TsFileWriter writer; |
| |
| public TSFHiveRecordWriter(JobConf job, Path path, Schema schema) throws IOException { |
| |
| HDFSOutput hdfsOutput = new HDFSOutput(path.toString(), job, false); |
| writer = new TsFileWriter(hdfsOutput, schema); |
| } |
| |
| @Override |
| public void write(Writable writable) throws IOException { |
| if (!(writable instanceof HDFSTSRecord)) { |
| throw new IOException( |
| "Expecting instance of HDFSTSRecord, but received" |
| + writable.getClass().getCanonicalName()); |
| } |
| try { |
| writer.write(((HDFSTSRecord) writable).convertToTSRecord()); |
| } catch (WriteProcessException e) { |
| throw new IOException(String.format("Write tsfile record error %s", e)); |
| } |
| } |
| |
| @Override |
| public void close(boolean b) throws IOException { |
| logger.info("Close the record writer"); |
| writer.close(); |
| } |
| } |