| /* |
| * 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.metadata; |
| |
| import org.apache.hudi.common.config.HoodieMetadataConfig; |
| import org.apache.hudi.common.engine.HoodieEngineContext; |
| import org.apache.hudi.common.table.HoodieTableMetaClient; |
| import org.apache.hudi.common.table.timeline.HoodieTimeline; |
| import org.apache.hudi.common.table.view.FileSystemViewStorageConfig; |
| import org.apache.hudi.common.table.view.HoodieTableFileSystemView; |
| import org.apache.hudi.common.util.collection.Pair; |
| import org.apache.hudi.exception.HoodieException; |
| |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.Path; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.function.Function; |
| import java.util.stream.Collectors; |
| |
| /** |
| * {@code HoodieTableFileSystemView} implementation that retrieved partition listings from the Metadata Table. |
| */ |
| public class HoodieMetadataFileSystemView extends HoodieTableFileSystemView { |
| |
| private final HoodieTableMetadata tableMetadata; |
| |
| public HoodieMetadataFileSystemView(HoodieTableMetaClient metaClient, |
| HoodieTimeline visibleActiveTimeline, |
| HoodieTableMetadata tableMetadata) { |
| super(metaClient, visibleActiveTimeline); |
| this.tableMetadata = tableMetadata; |
| } |
| |
| public HoodieMetadataFileSystemView(HoodieEngineContext engineContext, |
| HoodieTableMetaClient metaClient, |
| HoodieTimeline visibleActiveTimeline, |
| HoodieMetadataConfig metadataConfig) { |
| this(metaClient, visibleActiveTimeline, HoodieTableMetadata.create(engineContext, metadataConfig, |
| metaClient.getBasePath(), FileSystemViewStorageConfig.SPILLABLE_DIR.defaultValue(), true)); |
| } |
| |
| /** |
| * Return all the files in the partition by reading from the Metadata Table. |
| * |
| * @param partitionPath The absolute path of the partition |
| * @throws IOException |
| */ |
| @Override |
| protected FileStatus[] listPartition(Path partitionPath) throws IOException { |
| return tableMetadata.getAllFilesInPartition(partitionPath); |
| } |
| |
| @Override |
| protected List<String> getAllPartitionPaths() throws IOException { |
| return tableMetadata.getAllPartitionPaths(); |
| } |
| |
| @Override |
| protected Map<Pair<String, Path>, FileStatus[]> listPartitions(List<Pair<String, Path>> partitionPathList) throws IOException { |
| Map<String, Pair<String, Path>> absoluteToPairMap = partitionPathList.stream() |
| .collect(Collectors.toMap( |
| pair -> pair.getRight().toString(), |
| Function.identity() |
| )); |
| return tableMetadata.getAllFilesInPartitions( |
| partitionPathList.stream().map(pair -> pair.getRight().toString()).collect(Collectors.toList())) |
| .entrySet().stream().collect(Collectors.toMap( |
| entry -> absoluteToPairMap.get(entry.getKey()), |
| Map.Entry::getValue |
| )); |
| } |
| |
| @Override |
| public void reset() { |
| super.reset(); |
| tableMetadata.reset(); |
| } |
| |
| @Override |
| public void sync() { |
| super.sync(); |
| tableMetadata.reset(); |
| } |
| |
| @Override |
| public void close() { |
| try { |
| tableMetadata.close(); |
| } catch (Exception e) { |
| throw new HoodieException("Error closing metadata file system view.", e); |
| } |
| } |
| } |