lvyanquan commented on code in PR #2916: URL: https://github.com/apache/flink-cdc/pull/2916#discussion_r1565069967
########## flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-paimon/src/main/java/org/apache/flink/cdc/connectors/paimon/sink/PaimonMetadataApplier.java: ########## @@ -0,0 +1,202 @@ +/* + * 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.flink.cdc.connectors.paimon.sink; + +import org.apache.flink.cdc.common.event.AddColumnEvent; +import org.apache.flink.cdc.common.event.AlterColumnTypeEvent; +import org.apache.flink.cdc.common.event.CreateTableEvent; +import org.apache.flink.cdc.common.event.DropColumnEvent; +import org.apache.flink.cdc.common.event.RenameColumnEvent; +import org.apache.flink.cdc.common.event.SchemaChangeEvent; +import org.apache.flink.cdc.common.event.TableId; +import org.apache.flink.cdc.common.schema.Schema; +import org.apache.flink.cdc.common.sink.MetadataApplier; +import org.apache.flink.cdc.common.types.utils.DataTypeUtils; + +import org.apache.paimon.catalog.Catalog; +import org.apache.paimon.catalog.Identifier; +import org.apache.paimon.flink.FlinkCatalogFactory; +import org.apache.paimon.flink.LogicalTypeConversion; +import org.apache.paimon.options.Options; +import org.apache.paimon.schema.SchemaChange; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +/** + * A {@code MetadataApplier} that applies metadata changes to Paimon. Support primary key table + * only. + */ +public class PaimonMetadataApplier implements MetadataApplier { + + // Catalog is unSerializable. + private transient Catalog catalog; + + // currently, we set table options for all tables using the same options. + private final Map<String, String> tableOptions; + + private final Options catalogOptions; + + private final Map<TableId, List<String>> partitionMaps; + + public PaimonMetadataApplier(Options catalogOptions) { + this.catalogOptions = catalogOptions; + this.tableOptions = new HashMap<>(); + this.partitionMaps = new HashMap<>(); + } + + public PaimonMetadataApplier( + Options catalogOptions, + Map<String, String> tableOptions, + Map<TableId, List<String>> partitionMaps) { + this.catalogOptions = catalogOptions; + this.tableOptions = tableOptions; + this.partitionMaps = partitionMaps; + } + + @Override + public void applySchemaChange(SchemaChangeEvent schemaChangeEvent) { + if (catalog == null) { + catalog = FlinkCatalogFactory.createPaimonCatalog(catalogOptions); + } + try { + if (schemaChangeEvent instanceof CreateTableEvent) { + applyCreateTable((CreateTableEvent) schemaChangeEvent); + } else if (schemaChangeEvent instanceof AddColumnEvent) { + applyAddColumn((AddColumnEvent) schemaChangeEvent); + } else if (schemaChangeEvent instanceof DropColumnEvent) { + applyDropColumn((DropColumnEvent) schemaChangeEvent); + } else if (schemaChangeEvent instanceof RenameColumnEvent) { + applyRenameColumn((RenameColumnEvent) schemaChangeEvent); + } else if (schemaChangeEvent instanceof AlterColumnTypeEvent) { + applyAlterColumn((AlterColumnTypeEvent) schemaChangeEvent); + } else { + throw new UnsupportedOperationException( + "PaimonDataSink doesn't support schema change event " + schemaChangeEvent); + } + } catch (Exception e) { + throw new RuntimeException(e); + } + } + + /** TODO support partition column. */ Review Comment: Done. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
