rdblue commented on code in PR #7412: URL: https://github.com/apache/iceberg/pull/7412#discussion_r1216924825
########## gcp/src/main/java/org/apache/iceberg/gcp/biglake/BigLakeTableOperations.java: ########## @@ -0,0 +1,227 @@ +/* + * 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.iceberg.gcp.biglake; + +import com.google.api.gax.rpc.AbortedException; +import com.google.cloud.bigquery.biglake.v1.HiveTableOptions; +import com.google.cloud.bigquery.biglake.v1.HiveTableOptions.SerDeInfo; +import com.google.cloud.bigquery.biglake.v1.HiveTableOptions.StorageDescriptor; +import com.google.cloud.bigquery.biglake.v1.Table; +import com.google.cloud.bigquery.biglake.v1.TableName; +import java.util.Map; +import org.apache.hadoop.hive.common.StatsSetupConst; +import org.apache.iceberg.BaseMetastoreTableOperations; +import org.apache.iceberg.SnapshotSummary; +import org.apache.iceberg.TableMetadata; +import org.apache.iceberg.TableProperties; +import org.apache.iceberg.exceptions.CommitFailedException; +import org.apache.iceberg.exceptions.CommitStateUnknownException; +import org.apache.iceberg.exceptions.NoSuchTableException; +import org.apache.iceberg.io.FileIO; +import org.apache.iceberg.relocated.com.google.common.base.Preconditions; +import org.apache.iceberg.relocated.com.google.common.collect.Maps; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** Handles BigLake table operations. */ +public final class BigLakeTableOperations extends BaseMetastoreTableOperations { + + private static final Logger LOG = LoggerFactory.getLogger(BigLakeTableOperations.class); + + private final BigLakeClient client; + private final FileIO fileIO; + private final TableName tableName; + + BigLakeTableOperations(BigLakeClient client, FileIO fileIO, TableName tableName) { + this.client = client; + this.fileIO = fileIO; + this.tableName = tableName; + } + + // The doRefresh method should provide implementation on how to get the metadata location + @Override + public void doRefresh() { + // Must default to null. + String metadataLocation = null; + try { + HiveTableOptions hiveOptions = client.getTable(tableName).getHiveOptions(); + Preconditions.checkArgument( + hiveOptions.containsParameters(METADATA_LOCATION_PROP), + "Table %s is not a valid Iceberg table, metadata location not found", + tableName()); + metadataLocation = hiveOptions.getParametersOrThrow(METADATA_LOCATION_PROP); + } catch (NoSuchTableException e) { + if (currentMetadataLocation() != null) { + // Re-throws the exception because the table must exist in this case. + throw e; + } + } + refreshFromMetadataLocation(metadataLocation); + } + + // The doCommit method should provide implementation on how to update with metadata location + // atomically + @Override + public void doCommit(TableMetadata base, TableMetadata metadata) { + boolean isNewTable = base == null; + String newMetadataLocation = writeNewMetadataIfRequired(isNewTable, metadata); + + CommitStatus commitStatus = CommitStatus.FAILURE; + try { + if (isNewTable) { + createTable(newMetadataLocation, metadata); + } else { + updateTable(base.metadataFileLocation(), newMetadataLocation, metadata); + } + commitStatus = CommitStatus.SUCCESS; + } catch (CommitFailedException | CommitStateUnknownException e) { + throw e; + } catch (Throwable e) { + commitStatus = checkCommitStatus(newMetadataLocation, metadata); + if (commitStatus == CommitStatus.FAILURE) { + throw new CommitFailedException(e, "Failed to commit"); + } + if (commitStatus == CommitStatus.UNKNOWN) { + throw new CommitStateUnknownException(e); + } + } finally { + try { + if (commitStatus == CommitStatus.FAILURE) { + LOG.warn("Failed to commit updates to table {}", tableName()); + io().deleteFile(newMetadataLocation); + } + } catch (RuntimeException e) { + LOG.error( + "Failed to cleanup metadata file at {} for table {}", + newMetadataLocation, + tableName(), + e); + } + } + } + + @Override + public String tableName() { + return String.format( + "%s.%s.%s", tableName.getCatalog(), tableName.getDatabase(), tableName.getTable()); + } + + @Override + public FileIO io() { + return fileIO; + } + + private void createTable(String newMetadataLocation, TableMetadata metadata) { + LOG.debug("Creating a new Iceberg table: {}", tableName()); + client.createTable(tableName, makeNewTable(metadata, newMetadataLocation)); + } + + /** Update table properties with concurrent update detection using etag. */ + private void updateTable( + String oldMetadataLocation, String newMetadataLocation, TableMetadata metadata) { + Table table = client.getTable(tableName); + String etag = table.getEtag(); + Preconditions.checkArgument( + !etag.isEmpty(), + "Etag of legacy table %s is empty, manually update the table by BigLake API or recreate and retry", + tableName()); + HiveTableOptions options = table.getHiveOptions(); + + // If `metadataLocationFromMetastore` is different from metadata location of base, it means + // someone has updated metadata location in metastore, which is a conflict update. + String metadataLocationFromMetastore = + options.getParametersOrDefault(METADATA_LOCATION_PROP, ""); Review Comment: I think this should use the `getParamtersOrThrow` option. -- This is an automated message from the Apache Git Service. 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