| /******************************************************************************* |
| * 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.ofbiz.entity.jdbc; |
| |
| import java.sql.Connection; |
| import java.sql.Driver; |
| import java.sql.DriverManager; |
| import java.sql.SQLException; |
| import java.util.Properties; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import org.ofbiz.base.util.Debug; |
| import org.ofbiz.base.util.UtilValidate; |
| import org.ofbiz.entity.GenericEntityException; |
| import org.ofbiz.entity.config.EntityConfigUtil; |
| import org.ofbiz.entity.config.model.JdbcElement; |
| import org.ofbiz.entity.connection.ConnectionFactoryInterface; |
| import org.ofbiz.entity.datasource.GenericHelperInfo; |
| import org.ofbiz.entity.transaction.TransactionFactory; |
| |
| /** |
| * ConnectionFactory - central source for JDBC connections |
| * |
| */ |
| public class ConnectionFactory { |
| // Debug module name |
| public static final String module = ConnectionFactory.class.getName(); |
| private static final AtomicReference<ConnectionFactoryInterface> connFactoryRef = new AtomicReference<ConnectionFactoryInterface>(null); |
| |
| private static ConnectionFactoryInterface createConnectionFactoryInterface() throws Exception { |
| String className = EntityConfigUtil.getConnectionFactoryClass(); |
| if (className == null) { |
| throw new IllegalStateException("Could not find connection factory class name definition"); |
| } |
| ClassLoader loader = Thread.currentThread().getContextClassLoader(); |
| Class<?> tfClass = loader.loadClass(className); |
| return (ConnectionFactoryInterface) tfClass.newInstance(); |
| } |
| |
| |
| public static Connection getConnection(String driverName, String connectionUrl, Properties props, String userName, String password) throws SQLException { |
| // first register the JDBC driver with the DriverManager |
| if (driverName != null) { |
| ConnectionFactory.loadDriver(driverName); |
| } |
| |
| try { |
| if (UtilValidate.isNotEmpty(userName)) |
| return DriverManager.getConnection(connectionUrl, userName, password); |
| else if (props != null) |
| return DriverManager.getConnection(connectionUrl, props); |
| else |
| return DriverManager.getConnection(connectionUrl); |
| } catch (SQLException e) { |
| Debug.logError(e, "SQL Error obtaining JDBC connection", module); |
| throw e; |
| } |
| } |
| |
| public static Connection getConnection(String connectionUrl, String userName, String password) throws SQLException { |
| return getConnection(null, connectionUrl, null, userName, password); |
| } |
| |
| public static Connection getConnection(String connectionUrl, Properties props) throws SQLException { |
| return getConnection(null, connectionUrl, props, null, null); |
| } |
| |
| public static Connection getConnection(String helperName) throws SQLException, GenericEntityException { |
| // Debug.logVerbose("Getting a connection", module); |
| |
| Connection con = TransactionFactory.getConnection(new GenericHelperInfo(null, helperName)); |
| if (con == null) { |
| Debug.logError("******* ERROR: No database connection found for helperName \"" + helperName + "\"", module); |
| } |
| return con; |
| } |
| |
| public static Connection getConnection(GenericHelperInfo helperInfo) throws SQLException, GenericEntityException { |
| // Debug.logVerbose("Getting a connection", module); |
| |
| Connection con = TransactionFactory.getConnection(helperInfo); |
| if (con == null) { |
| Debug.logError("******* ERROR: No database connection found for helperName \"" + helperInfo.getHelperFullName() + "\"", module); |
| } |
| return con; |
| } |
| |
| private static ConnectionFactoryInterface getManagedConnectionFactory() { |
| ConnectionFactoryInterface instance = connFactoryRef.get(); |
| if (instance == null) { |
| try { |
| instance = createConnectionFactoryInterface(); |
| if (!connFactoryRef.compareAndSet(null, instance)) { |
| instance = connFactoryRef.get(); |
| } |
| } catch (Exception e) { |
| Debug.logError(e, "Exception thrown while creating ConnectionFactoryInterface instance: ", module); |
| throw new IllegalStateException("Error loading ConnectionFactoryInterface class: " + e); |
| } |
| } |
| return instance; |
| } |
| |
| public static Connection getManagedConnection(GenericHelperInfo helperInfo, JdbcElement jdbcElement) throws SQLException, GenericEntityException { |
| return getManagedConnectionFactory().getConnection(helperInfo, jdbcElement); |
| } |
| |
| public static void closeAllManagedConnections() { |
| getManagedConnectionFactory().closeAll(); |
| } |
| |
| public static void loadDriver(String driverName) throws SQLException { |
| if (DriverManager.getDriver(driverName) == null) { |
| try { |
| Driver driver = (Driver) Class.forName(driverName, true, Thread.currentThread().getContextClassLoader()).newInstance(); |
| DriverManager.registerDriver(driver); |
| } catch (ClassNotFoundException e) { |
| Debug.logWarning(e, "Unable to load driver [" + driverName + "]", module); |
| } catch (InstantiationException e) { |
| Debug.logWarning(e, "Unable to instantiate driver [" + driverName + "]", module); |
| } catch (IllegalAccessException e) { |
| Debug.logWarning(e, "Illegal access exception [" + driverName + "]", module); |
| } |
| } |
| } |
| |
| public static void unloadDriver(String driverName) throws SQLException { |
| Driver driver = DriverManager.getDriver(driverName); |
| if (driver != null) { |
| DriverManager.deregisterDriver(driver); |
| } |
| } |
| } |