diff --git a/hudi-sync/hudi-hive-sync/src/main/java/org/apache/hudi/hive/HiveStylePartitionValueExtractor.java b/hudi-sync/hudi-hive-sync/src/main/java/org/apache/hudi/hive/HiveStylePartitionValueExtractor.java new file mode 100644 index 000000000..4bb20f5e5 --- /dev/null +++ b/hudi-sync/hudi-hive-sync/src/main/java/org/apache/hudi/hive/HiveStylePartitionValueExtractor.java @@ -0,0 +1,42 @@ +/* + * 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 java.util.Collections; +import java.util.List; + +/** + * Extractor for Hive Style Partitioned tables, when the parition folders are key value pairs. + * + *

This implementation extracts the partition value of yyyy-mm-dd from the path of type datestr=yyyy-mm-dd. + */ +public class HiveStylePartitionValueExtractor implements PartitionValueExtractor { + private static final long serialVersionUID = 1L; + + @Override + public List extractPartitionValuesInPath(String partitionPath) { + // partition path is expected to be in this format partition_key=partition_value. + String[] splits = partitionPath.split("="); + if (splits.length != 2) { + throw new IllegalArgumentException( + "Partition path " + partitionPath + " is not in the form partition_key=partition_value."); + } + return Collections.singletonList(splits[1]); + } +} diff --git a/hudi-sync/hudi-hive-sync/src/test/java/org/apache/hudi/hive/TestPartitionValueExtractor.java b/hudi-sync/hudi-hive-sync/src/test/java/org/apache/hudi/hive/TestPartitionValueExtractor.java index a248e49f4..ba5a544af 100644 --- a/hudi-sync/hudi-hive-sync/src/test/java/org/apache/hudi/hive/TestPartitionValueExtractor.java +++ b/hudi-sync/hudi-hive-sync/src/test/java/org/apache/hudi/hive/TestPartitionValueExtractor.java @@ -35,4 +35,15 @@ public class TestPartitionValueExtractor { assertThrows(IllegalArgumentException.class, () -> hourPartition.extractPartitionValuesInPath("2020/12/20")); assertEquals(hourPartition.extractPartitionValuesInPath("update_time=2020/12/20/01"), list); } -} \ No newline at end of file + + @Test + public void testHiveStylePartition() { + HiveStylePartitionValueExtractor hiveStylePartition = new HiveStylePartitionValueExtractor(); + List list = new ArrayList<>(); + list.add("2021-04-02"); + assertEquals(hiveStylePartition.extractPartitionValuesInPath("datestr=2021-04-02"), list); + assertThrows( + IllegalArgumentException.class, + () -> hiveStylePartition.extractPartitionValuesInPath("2021/04/02")); + } +}