| /* |
| * 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.drill.exec.store.hdf5.writers; |
| |
| import java.time.Instant; |
| |
| import io.jhdf.HdfFile; |
| import org.apache.drill.common.types.TypeProtos; |
| import org.apache.drill.exec.store.hdf5.HDF5Utils; |
| import org.apache.drill.exec.vector.accessor.ValueWriter; |
| |
| public class HDF5TimestampDataWriter extends HDF5DataWriter { |
| |
| private final long[] data; |
| |
| private final ValueWriter colWriter; |
| |
| // This constructor is used when the data is a 1D column. The column is inferred from the datapath |
| public HDF5TimestampDataWriter(HdfFile reader, WriterSpec writerSpec, String datapath) { |
| super(reader, datapath); |
| data = (long[]) reader.getDatasetByPath(datapath).getData(); |
| |
| fieldName = HDF5Utils.getNameFromPath(datapath); |
| colWriter = writerSpec.makeWriter(fieldName, TypeProtos.MinorType.TIMESTAMP, TypeProtos.DataMode.OPTIONAL); |
| } |
| |
| @Override |
| public boolean write() { |
| if (counter > data.length) { |
| return false; |
| } else { |
| colWriter.setTimestamp(Instant.ofEpochMilli(data[counter++])); // lgtm [java/index-out-of-bounds] |
| return true; |
| } |
| } |
| |
| @Override |
| public boolean hasNext() { |
| return counter < data.length; |
| } |
| |
| @Override |
| public int getDataSize() { |
| return data.length; |
| } |
| |
| // Datasets of greater than 1D are not supported for timestamps |
| } |