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ConnectorConnectionPoolFactory.java
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ConnectorConnectionPoolFactory.java
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/*
* Copyright 2022 Google LLC
*
* 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.
*/
package com.example.cloudsql;
// [START cloud_sql_sqlserver_servlet_connect_connector]
import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;
import javax.sql.DataSource;
public class ConnectorConnectionPoolFactory extends ConnectionPoolFactory {
// Note: Saving credentials in environment variables is convenient, but not
// secure - consider a more secure solution such as
// Cloud Secret Manager (https://cloud.google.com/secret-manager) to help
// keep secrets safe.
private static final String INSTANCE_CONNECTION_NAME =
System.getenv("INSTANCE_CONNECTION_NAME");
private static final String DB_USER = System.getenv("DB_USER");
private static final String DB_PASS = System.getenv("DB_PASS");
private static final String DB_NAME = System.getenv("DB_NAME");
public static DataSource createConnectionPool() {
// The configuration object specifies behaviors for the connection pool.
HikariConfig config = new HikariConfig();
// The following is equivalent to setting the config options below:
// jdbc:sqlserver://;user=<DB_USER>;password=<DB_PASS>;databaseName=<DB_NAME>;
// socketFactoryClass=com.google.cloud.sql.sqlserver.SocketFactory;
// socketFactoryConstructorArg=<INSTANCE_CONNECTION_NAME>
// See the link below for more info on building a JDBC URL for the Cloud SQL JDBC Socket Factory
// https://github.com/GoogleCloudPlatform/cloud-sql-jdbc-socket-factory#creating-the-jdbc-url
// Configure which instance and what database user to connect with.
config
.setDataSourceClassName("com.microsoft.sqlserver.jdbc.SQLServerDataSource");
config.setUsername(DB_USER); // e.g. "root", "sqlserver"
config.setPassword(DB_PASS); // e.g. "my-password"
config.addDataSourceProperty("databaseName", DB_NAME);
config.addDataSourceProperty("socketFactoryClass",
"com.google.cloud.sql.sqlserver.SocketFactory");
config.addDataSourceProperty("socketFactoryConstructorArg", INSTANCE_CONNECTION_NAME);
// The Java Connector provides SSL encryption, so it should be disabled
// at the driver level.
config.addDataSourceProperty("encrypt", "false");
// ... Specify additional connection properties here.
// [START_EXCLUDE]
configureConnectionPool(config);
// [END_EXCLUDE]
// Initialize the connection pool using the configuration object.
return new HikariDataSource(config);
}
}
// [END cloud_sql_sqlserver_servlet_connect_connector]