-
Notifications
You must be signed in to change notification settings - Fork 170
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[FLINK-34572] Support OceanBase Jdbc Catalog
- Loading branch information
Showing
20 changed files
with
1,245 additions
and
43 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
164 changes: 164 additions & 0 deletions
164
...in/java/org/apache/flink/connector/jdbc/databases/oceanbase/catalog/OceanBaseCatalog.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,164 @@ | ||
| /* | ||
| * 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.connector.jdbc.databases.oceanbase.catalog; | ||
|
|
||
| import org.apache.flink.connector.jdbc.catalog.AbstractJdbcCatalog; | ||
| import org.apache.flink.connector.jdbc.dialect.JdbcDialectTypeMapper; | ||
| import org.apache.flink.table.catalog.ObjectPath; | ||
| import org.apache.flink.table.catalog.UniqueConstraint; | ||
| import org.apache.flink.table.catalog.exceptions.CatalogException; | ||
| import org.apache.flink.table.catalog.exceptions.DatabaseNotExistException; | ||
| import org.apache.flink.table.types.DataType; | ||
| import org.apache.flink.util.Preconditions; | ||
|
|
||
| import org.apache.commons.lang3.StringUtils; | ||
|
|
||
| import java.sql.DatabaseMetaData; | ||
| import java.sql.ResultSetMetaData; | ||
| import java.sql.SQLException; | ||
| import java.util.HashSet; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Optional; | ||
| import java.util.Properties; | ||
| import java.util.Set; | ||
|
|
||
| import static org.apache.flink.connector.jdbc.table.JdbcConnectorOptions.COMPATIBLE_MODE; | ||
|
|
||
| /** Catalog for OceanBase. */ | ||
| public class OceanBaseCatalog extends AbstractJdbcCatalog { | ||
|
|
||
| private static final Set<String> builtinDatabases = | ||
| new HashSet<String>() { | ||
| { | ||
| add("__public"); | ||
| add("information_schema"); | ||
| add("mysql"); | ||
| add("oceanbase"); | ||
| add("LBACSYS"); | ||
| add("ORAAUDITOR"); | ||
| } | ||
| }; | ||
|
|
||
| private final String compatibleMode; | ||
| private final JdbcDialectTypeMapper dialectTypeMapper; | ||
|
|
||
| public OceanBaseCatalog( | ||
| ClassLoader userClassLoader, | ||
| String catalogName, | ||
| String compatibleMode, | ||
| String defaultDatabase, | ||
| String baseUrl, | ||
| Properties connectionProperties) { | ||
| super(userClassLoader, catalogName, defaultDatabase, baseUrl, connectionProperties); | ||
| this.compatibleMode = compatibleMode; | ||
| this.dialectTypeMapper = new OceanBaseTypeMapper(compatibleMode); | ||
| } | ||
|
|
||
| private boolean isMySQLMode() { | ||
| return "mysql".equalsIgnoreCase(compatibleMode); | ||
| } | ||
|
|
||
| private String getConnUrl() { | ||
| return isMySQLMode() ? baseUrl : defaultUrl; | ||
| } | ||
|
|
||
| @Override | ||
| public List<String> listDatabases() throws CatalogException { | ||
| String query = | ||
| isMySQLMode() | ||
| ? "SELECT `SCHEMA_NAME` FROM `INFORMATION_SCHEMA`.`SCHEMATA`" | ||
| : "SELECT USERNAME FROM ALL_USERS"; | ||
| return extractColumnValuesBySQL( | ||
| getConnUrl(), query, 1, dbName -> !builtinDatabases.contains(dbName)); | ||
| } | ||
|
|
||
| @Override | ||
| public List<String> listTables(String databaseName) | ||
| throws DatabaseNotExistException, CatalogException { | ||
| Preconditions.checkState( | ||
| StringUtils.isNotBlank(databaseName), "Database name must not be blank."); | ||
| if (!databaseExists(databaseName)) { | ||
| throw new DatabaseNotExistException(getName(), databaseName); | ||
| } | ||
| String sql = | ||
| isMySQLMode() | ||
| ? "SELECT TABLE_NAME FROM information_schema.`TABLES` WHERE TABLE_SCHEMA = ?" | ||
| : "SELECT TABLE_NAME FROM ALL_TABLES WHERE OWNER = ?"; | ||
| return extractColumnValuesBySQL(getConnUrl(), sql, 1, null, databaseName); | ||
| } | ||
|
|
||
| @Override | ||
| public boolean tableExists(ObjectPath tablePath) throws CatalogException { | ||
| String query = | ||
| isMySQLMode() | ||
| ? "SELECT TABLE_NAME FROM information_schema.`TABLES` " | ||
| + "WHERE TABLE_SCHEMA = ? and TABLE_NAME = ?" | ||
| : "SELECT TABLE_NAME FROM ALL_TABLES " | ||
| + "WHERE OWNER = ? and TABLE_NAME = ?"; | ||
| return !extractColumnValuesBySQL( | ||
| getConnUrl(), | ||
| query, | ||
| 1, | ||
| null, | ||
| tablePath.getDatabaseName(), | ||
| tablePath.getObjectName()) | ||
| .isEmpty(); | ||
| } | ||
|
|
||
| @Override | ||
| protected Optional<UniqueConstraint> getPrimaryKey( | ||
| DatabaseMetaData metaData, String database, String schema, String table) | ||
| throws SQLException { | ||
| if (isMySQLMode()) { | ||
| return super.getPrimaryKey(metaData, database, null, table); | ||
| } else { | ||
| return super.getPrimaryKey(metaData, null, database, table); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| protected Map<String, String> getOptions(ObjectPath tablePath) { | ||
| Map<String, String> options = super.getOptions(tablePath); | ||
| options.put(COMPATIBLE_MODE.key(), compatibleMode); | ||
| return options; | ||
| } | ||
|
|
||
| /** Converts OceanBase type to Flink {@link DataType}. */ | ||
| @Override | ||
| protected DataType fromJDBCType(ObjectPath tablePath, ResultSetMetaData metadata, int colIndex) | ||
| throws SQLException { | ||
| return dialectTypeMapper.mapping(tablePath, metadata, colIndex); | ||
| } | ||
|
|
||
| @Override | ||
| protected String getTableName(ObjectPath tablePath) { | ||
| return tablePath.getObjectName(); | ||
| } | ||
|
|
||
| @Override | ||
| protected String getSchemaName(ObjectPath tablePath) { | ||
| return null; | ||
| } | ||
|
|
||
| @Override | ||
| protected String getSchemaTableName(ObjectPath tablePath) { | ||
| return tablePath.getObjectName(); | ||
| } | ||
| } |
Oops, something went wrong.