| /* |
| * 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.hudi.hive; |
| |
| import org.apache.hudi.sync.common.model.PartitionValueExtractor; |
| |
| import java.time.LocalDateTime; |
| import java.time.ZoneId; |
| import java.time.ZonedDateTime; |
| import java.time.format.DateTimeFormatter; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * HDFS Path contain hive partition values for the keys it is partitioned on. This mapping is not straight forward and |
| * requires a pluggable implementation to extract the partition value from HDFS path. |
| * <p> |
| * This implementation extracts datestr=yyyy-mm-dd from path of type /yyyy/mm/dd |
| */ |
| public class SlashEncodedDayPartitionValueExtractor implements PartitionValueExtractor { |
| |
| private static final long serialVersionUID = 1L; |
| private transient DateTimeFormatter dtfOut; |
| |
| public SlashEncodedDayPartitionValueExtractor() { |
| this.dtfOut = DateTimeFormatter.ofPattern("yyyy-MM-dd"); |
| } |
| |
| private DateTimeFormatter getDtfOut() { |
| if (dtfOut == null) { |
| dtfOut = DateTimeFormatter.ofPattern("yyyy-MM-dd"); |
| } |
| return dtfOut; |
| } |
| |
| @Override |
| public List<String> extractPartitionValuesInPath(String partitionPath) { |
| // partition path is expected to be in this format yyyy/mm/dd |
| String[] splits = partitionPath.split("/"); |
| if (splits.length != 3) { |
| throw new IllegalArgumentException("Partition path " + partitionPath + " is not in the form yyyy/mm/dd "); |
| } |
| // Get the partition part and remove the / as well at the end |
| int year = Integer.parseInt(splits[0].contains("=") ? splits[0].split("=")[1] : splits[0]); |
| int mm = Integer.parseInt(splits[1].contains("=") ? splits[1].split("=")[1] : splits[1]); |
| int dd = Integer.parseInt(splits[2].contains("=") ? splits[2].split("=")[1] : splits[2]); |
| ZonedDateTime dateTime = ZonedDateTime.of(LocalDateTime.of(year, mm, dd, 0, 0), ZoneId.systemDefault()); |
| |
| return Collections.singletonList(dateTime.format(getDtfOut())); |
| } |
| } |