| /* |
| * 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.write.chunk; |
| |
| import org.apache.iotdb.tsfile.exception.write.NoMeasurementException; |
| import org.apache.iotdb.tsfile.exception.write.UnSupportedDataTypeException; |
| import org.apache.iotdb.tsfile.exception.write.WriteProcessException; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; |
| import org.apache.iotdb.tsfile.utils.Binary; |
| import org.apache.iotdb.tsfile.write.record.Tablet; |
| import org.apache.iotdb.tsfile.write.record.datapoint.DataPoint; |
| import org.apache.iotdb.tsfile.write.schema.IMeasurementSchema; |
| import org.apache.iotdb.tsfile.write.writer.TsFileIOWriter; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** a implementation of IChunkGroupWriter. */ |
| public class ChunkGroupWriterImpl implements IChunkGroupWriter { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(ChunkGroupWriterImpl.class); |
| |
| private final String deviceId; |
| |
| /** Map(measurementID, ChunkWriterImpl). */ |
| private Map<String, IChunkWriter> chunkWriters = new HashMap<>(); |
| |
| public ChunkGroupWriterImpl(String deviceId) { |
| this.deviceId = deviceId; |
| } |
| |
| @Override |
| public void tryToAddSeriesWriter(IMeasurementSchema schema, int pageSizeThreshold) { |
| if (!chunkWriters.containsKey(schema.getMeasurementId())) { |
| IChunkWriter seriesWriter = new ChunkWriterImpl(schema); |
| this.chunkWriters.put(schema.getMeasurementId(), seriesWriter); |
| } |
| } |
| |
| @Override |
| public void write(long time, List<DataPoint> data) throws WriteProcessException, IOException { |
| for (DataPoint point : data) { |
| String measurementId = point.getMeasurementId(); |
| if (!chunkWriters.containsKey(measurementId)) { |
| throw new NoMeasurementException( |
| "time " + time + ", measurement id " + measurementId + " not found!"); |
| } |
| point.writeTo(time, chunkWriters.get(measurementId)); |
| } |
| } |
| |
| @Override |
| public void write(Tablet tablet) throws WriteProcessException { |
| List<IMeasurementSchema> timeseries = tablet.getSchemas(); |
| for (int i = 0; i < timeseries.size(); i++) { |
| String measurementId = timeseries.get(i).getMeasurementId(); |
| TSDataType dataType = timeseries.get(i).getType(); |
| if (!chunkWriters.containsKey(measurementId)) { |
| throw new NoMeasurementException("measurement id" + measurementId + " not found!"); |
| } |
| writeByDataType(tablet, measurementId, dataType, i); |
| } |
| } |
| |
| private void writeByDataType( |
| Tablet tablet, String measurementId, TSDataType dataType, int index) { |
| int batchSize = tablet.rowSize; |
| switch (dataType) { |
| case INT32: |
| chunkWriters |
| .get(measurementId) |
| .write(tablet.timestamps, (int[]) tablet.values[index], batchSize); |
| break; |
| case INT64: |
| chunkWriters |
| .get(measurementId) |
| .write(tablet.timestamps, (long[]) tablet.values[index], batchSize); |
| break; |
| case FLOAT: |
| chunkWriters |
| .get(measurementId) |
| .write(tablet.timestamps, (float[]) tablet.values[index], batchSize); |
| break; |
| case DOUBLE: |
| chunkWriters |
| .get(measurementId) |
| .write(tablet.timestamps, (double[]) tablet.values[index], batchSize); |
| break; |
| case BOOLEAN: |
| chunkWriters |
| .get(measurementId) |
| .write(tablet.timestamps, (boolean[]) tablet.values[index], batchSize); |
| break; |
| case TEXT: |
| chunkWriters |
| .get(measurementId) |
| .write(tablet.timestamps, (Binary[]) tablet.values[index], batchSize); |
| break; |
| default: |
| throw new UnSupportedDataTypeException( |
| String.format("Data type %s is not supported.", dataType)); |
| } |
| } |
| |
| @Override |
| public long flushToFileWriter(TsFileIOWriter fileWriter) throws IOException { |
| LOG.debug("start flush device id:{}", deviceId); |
| // make sure all the pages have been compressed into buffers, so that we can get correct |
| // groupWriter.getCurrentChunkGroupSize(). |
| sealAllChunks(); |
| long currentChunkGroupSize = getCurrentChunkGroupSize(); |
| for (IChunkWriter seriesWriter : chunkWriters.values()) { |
| seriesWriter.writeToFileWriter(fileWriter); |
| } |
| return currentChunkGroupSize; |
| } |
| |
| @Override |
| public long updateMaxGroupMemSize() { |
| long bufferSize = 0; |
| for (IChunkWriter seriesWriter : chunkWriters.values()) { |
| bufferSize += seriesWriter.estimateMaxSeriesMemSize(); |
| } |
| return bufferSize; |
| } |
| |
| @Override |
| public long getCurrentChunkGroupSize() { |
| long size = 0; |
| for (IChunkWriter writer : chunkWriters.values()) { |
| size += writer.getCurrentChunkSize(); |
| } |
| return size; |
| } |
| |
| /** seal all the chunks which may has un-sealed pages in force. */ |
| private void sealAllChunks() { |
| for (IChunkWriter writer : chunkWriters.values()) { |
| writer.sealCurrentPage(); |
| } |
| } |
| |
| @Override |
| public int getSeriesNumber() { |
| return chunkWriters.size(); |
| } |
| } |