[HUDI-3045] New clustering regex match config to choose partitions when building clustering plan

hudi-client/hudi-client-common/src/main/java/org/apache/hudi/config/HoodieClusteringConfig.java

@@ -87,6 +87,12 @@ public class HoodieClusteringConfig extends HoodieConfig {
       .sinceVersion("0.7.0")
       .withDocumentation("Files smaller than the size specified here are candidates for clustering");
 
+  public static final ConfigProperty<String> PARTITION_REGEX_PATTERN = ConfigProperty
+      .key(CLUSTERING_STRATEGY_PARAM_PREFIX + "partition.regex.pattern")
+      .noDefaultValue()
+      .sinceVersion("0.11.0")
+      .withDocumentation("Filter clustering partitions that matched regex pattern");
+
   public static final ConfigProperty<String> PLAN_STRATEGY_CLASS_NAME = ConfigProperty
       .key("hoodie.clustering.plan.strategy.class")
       .defaultValue(SPARK_SIZED_BASED_CLUSTERING_PLAN_STRATEGY)
@@ -424,6 +430,11 @@ public Builder withClusteringTargetPartitions(int clusteringTargetPartitions) {
       return this;
     }
 
+    public Builder withClusteringPartitionRegexPattern(String pattern) {
+      clusteringConfig.setValue(PARTITION_REGEX_PATTERN, pattern);
+      return this;
+    }
+
     public Builder withClusteringSkipPartitionsFromLatest(int clusteringSkipPartitionsFromLatest) {
       clusteringConfig.setValue(PLAN_STRATEGY_SKIP_PARTITIONS_FROM_LATEST, String.valueOf(clusteringSkipPartitionsFromLatest));
       return this;

hudi-client/hudi-client-common/src/main/java/org/apache/hudi/config/HoodieWriteConfig.java

@@ -1252,6 +1252,10 @@ public long getClusteringSmallFileLimit() {
     return getLong(HoodieClusteringConfig.PLAN_STRATEGY_SMALL_FILE_LIMIT);
   }
 
+  public String getClusteringPartitionFilterRegexPattern() {
+    return getString(HoodieClusteringConfig.PARTITION_REGEX_PATTERN);
+  }
+
   public int getClusteringMaxNumGroups() {
     return getInt(HoodieClusteringConfig.PLAN_STRATEGY_MAX_GROUPS);
   }

hudi-client/hudi-client-common/src/main/java/org/apache/hudi/table/action/cluster/strategy/PartitionAwareClusteringPlanStrategy.java

@@ -27,6 +27,7 @@
 import org.apache.hudi.common.model.HoodieRecordPayload;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
 import org.apache.hudi.common.util.Option;
+import org.apache.hudi.common.util.StringUtils;
 import org.apache.hudi.config.HoodieWriteConfig;
 import org.apache.hudi.table.HoodieTable;
 import org.apache.hudi.table.action.cluster.ClusteringPlanPartitionFilter;
@@ -35,6 +36,7 @@
 import org.apache.log4j.Logger;
 
 import java.util.List;
+import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
@@ -70,6 +72,8 @@ public Option<HoodieClusteringPlan> generateClusteringPlan() {
     HoodieWriteConfig config = getWriteConfig();
     List<String> partitionPaths = FSUtils.getAllPartitionPaths(getEngineContext(), config.getMetadataConfig(), metaClient.getBasePath());
 
+    // get regex matched partitions if set
+    partitionPaths = getRegexPatternMatchedPartitions(config, partitionPaths);
     // filter the partition paths if needed to reduce list status
     partitionPaths = filterPartitionPaths(partitionPaths);
 
@@ -108,4 +112,14 @@ public Option<HoodieClusteringPlan> generateClusteringPlan() {
         .setPreserveHoodieMetadata(getWriteConfig().isPreserveHoodieCommitMetadataForClustering())
         .build());
   }
+
+  public List<String> getRegexPatternMatchedPartitions(HoodieWriteConfig config, List<String> partitionPaths) {
+    String pattern = config.getClusteringPartitionFilterRegexPattern();
+    if (!StringUtils.isNullOrEmpty(pattern)) {
+      partitionPaths = partitionPaths.stream()
+          .filter(partition -> Pattern.matches(pattern, partition))
+          .collect(Collectors.toList());
+    }
+    return partitionPaths;
+  }
 }

hudi-client/hudi-client-common/src/test/java/org/apache/hudi/table/action/cluster/strategy/TestPartitionAwareClusteringPlanStrategy.java

@@ -0,0 +1,96 @@
+/*
+ * 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.table.action.cluster.strategy;
+
+import org.apache.hudi.avro.model.HoodieClusteringGroup;
+import org.apache.hudi.common.engine.HoodieEngineContext;
+import org.apache.hudi.config.HoodieClusteringConfig;
+import org.apache.hudi.config.HoodieWriteConfig;
+import org.apache.hudi.table.HoodieTable;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mock;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.stream.Stream;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class TestPartitionAwareClusteringPlanStrategy {
+
+  @Mock
+  HoodieTable table;
+  @Mock
+  HoodieEngineContext context;
+  HoodieWriteConfig hoodieWriteConfig;
+
+  @BeforeEach
+  public void setUp() {
+    Properties props = new Properties();
+    props.setProperty("hoodie.clustering.plan.strategy.partition.regex.pattern", "2021072.*");
+    this.hoodieWriteConfig = HoodieWriteConfig
+        .newBuilder()
+        .withPath("dummy_Table_Path")
+        .withClusteringConfig(HoodieClusteringConfig
+            .newBuilder()
+            .fromProperties(props)
+            .build())
+        .build();
+  }
+
+  @Test
+  public void testFilterPartitionPaths() {
+    PartitionAwareClusteringPlanStrategy strategyTestRegexPattern = new DummyPartitionAwareClusteringPlanStrategy(table, context, hoodieWriteConfig);
+
+    ArrayList<String> fakeTimeBasedPartitionsPath = new ArrayList<>();
+    fakeTimeBasedPartitionsPath.add("20210718");
+    fakeTimeBasedPartitionsPath.add("20210715");
+    fakeTimeBasedPartitionsPath.add("20210723");
+    fakeTimeBasedPartitionsPath.add("20210716");
+    fakeTimeBasedPartitionsPath.add("20210719");
+    fakeTimeBasedPartitionsPath.add("20210721");
+
+    List list = strategyTestRegexPattern.getRegexPatternMatchedPartitions(hoodieWriteConfig, fakeTimeBasedPartitionsPath);
+    assertEquals(2, list.size());
+    assertTrue(list.contains("20210721"));
+    assertTrue(list.contains("20210723"));
+  }
+
+  class DummyPartitionAwareClusteringPlanStrategy extends PartitionAwareClusteringPlanStrategy {
+
+    public DummyPartitionAwareClusteringPlanStrategy(HoodieTable table, HoodieEngineContext engineContext, HoodieWriteConfig writeConfig) {
+      super(table, engineContext, writeConfig);
+    }
+
+    @Override
+    protected Stream<HoodieClusteringGroup> buildClusteringGroupsForPartition(String partitionPath, List list) {
+      return null;
+    }
+
+    @Override
+    protected Map<String, String> getStrategyParams() {
+      return null;
+    }
+  }
+}