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add test connection execution support for duck db in pure runtime
- use dbtype in testdbconnection to switch between h2 and duckDB test connection in legend-pure connection manager - use singleton connection for duckdb
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56 changes: 56 additions & 0 deletions
56
...ime/java/extension/store/relational/shared/connectionManager/DuckDBConnectionWrapper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| // Copyright 2024 Goldman Sachs | ||
| // | ||
| // Licensed 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. | ||
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| package org.finos.legend.pure.runtime.java.extension.store.relational.shared.connectionManager; | ||
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| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import java.sql.Connection; | ||
| import java.sql.SQLException; | ||
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| public class DuckDBConnectionWrapper extends ConnectionWrapper | ||
| { | ||
| Logger logger = LoggerFactory.getLogger(DuckDBConnectionWrapper.class); | ||
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| private int borrowedCounter; | ||
| String user; | ||
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| public DuckDBConnectionWrapper(Connection connection, String user) | ||
| { | ||
| super(connection); | ||
| this.user = user; | ||
| } | ||
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| public void incrementBorrowedCounter() | ||
| { | ||
| borrowedCounter++; | ||
| } | ||
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| private void decrementBorrowedCounter() | ||
| { | ||
| borrowedCounter--; | ||
| } | ||
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| @Override | ||
| public void close() throws SQLException | ||
| { | ||
| this.decrementBorrowedCounter(); | ||
| //never actually close duck db connection and re-use same connection over | ||
| // if (borrowedCounter <= 0) | ||
| // { | ||
| // this.closeConnection(); | ||
| // } | ||
| } | ||
| } |
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71 changes: 71 additions & 0 deletions
71
...e/java/extension/store/relational/shared/connectionManager/TestDatabaseConnectDuckDB.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| // Copyright 2024 Goldman Sachs | ||
| // | ||
| // Licensed 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. | ||
|
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| package org.finos.legend.pure.runtime.java.extension.store.relational.shared.connectionManager; | ||
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| import org.finos.legend.pure.m3.exception.PureExecutionException; | ||
| import org.finos.legend.pure.runtime.java.extension.store.relational.shared.ConnectionWithDataSourceInfo; | ||
| import org.finos.legend.pure.runtime.java.extension.store.relational.shared.DataSource; | ||
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| import java.sql.Connection; | ||
| import java.sql.DriverManager; | ||
| import java.sql.SQLException; | ||
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| public class TestDatabaseConnectDuckDB | ||
| { | ||
| private DuckDBConnectionWrapper singletonConnection; // disabled thread-level and user-level segregation, | ||
| public static final String TEST_DB_HOST_NAME = "local"; | ||
| private static final String TEST_DB_NAME = "pure-duckDB-test-Db"; | ||
| private static final DataSource TEST_DATA_SOURCE = new DataSource(TEST_DB_HOST_NAME, -1, TEST_DB_NAME, null); | ||
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| public TestDatabaseConnectDuckDB() | ||
| { | ||
| try | ||
| { | ||
| Class.forName("org.duckdb.DuckDBDriver"); | ||
| } | ||
| catch (ClassNotFoundException ignore) | ||
| { | ||
| // ignore exception about not finding the duckDB driver | ||
| } | ||
| } | ||
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| public ConnectionWithDataSourceInfo getConnectionWithDataSourceInfo(String user) | ||
| { | ||
| try | ||
| { | ||
| if (this.singletonConnection == null || this.singletonConnection.isClosed()) | ||
| { | ||
| Connection connection = DriverManager.getConnection(getConnectionURL()); | ||
| //there is no way to configure timezone as jdbc url param or system properties | ||
| connection.createStatement().execute("SET TimeZone = 'UTC'"); | ||
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| this.singletonConnection = new DuckDBConnectionWrapper(connection, user); | ||
| } | ||
| } | ||
| catch (SQLException ex) | ||
| { | ||
| throw new PureExecutionException("Unable to create TestDatabaseConnection of type: DuckDB for user: " + user + ", message: " + ex.getMessage(), ex); | ||
| } | ||
| this.singletonConnection.incrementBorrowedCounter(); | ||
| return new ConnectionWithDataSourceInfo(this.singletonConnection, TEST_DATA_SOURCE, this.getClass().getSimpleName()); | ||
| } | ||
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| private static String getConnectionURL() | ||
| { | ||
| return "jdbc:duckdb:" + TEST_DB_NAME; | ||
| } | ||
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| } |
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