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-rw-r--r--java/sca-1.x-contrib/modules/implementation-data-xml/src/main/java/org/apache/tuscany/sca/implementation/data/jdbc/JDBCHelper.java215
1 files changed, 0 insertions, 215 deletions
diff --git a/java/sca-1.x-contrib/modules/implementation-data-xml/src/main/java/org/apache/tuscany/sca/implementation/data/jdbc/JDBCHelper.java b/java/sca-1.x-contrib/modules/implementation-data-xml/src/main/java/org/apache/tuscany/sca/implementation/data/jdbc/JDBCHelper.java
deleted file mode 100644
index 265f250717..0000000000
--- a/java/sca-1.x-contrib/modules/implementation-data-xml/src/main/java/org/apache/tuscany/sca/implementation/data/jdbc/JDBCHelper.java
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- * 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.tuscany.sca.implementation.data.jdbc;
-
-import java.sql.Connection;
-import java.sql.DriverManager;
-import java.sql.PreparedStatement;
-import java.sql.ResultSet;
-import java.sql.SQLException;
-import java.util.Properties;
-
-import javax.naming.InitialContext;
-import javax.naming.NamingException;
-import javax.sql.DataSource;
-
-import org.apache.tuscany.das.rdb.exception.DataSourceInitializationException;
-import org.apache.tuscany.sca.data.engine.config.ConnectionInfo;
-
-/**
- * JDBC Helper
- * - JDBC Connection utility methods
- * - JDBC Resource cleanup methods
- *
- * @version $Rev$ $Date$
- */
-public class JDBCHelper {
-
- /**
- * protected constructor
- */
- protected JDBCHelper() {
-
- }
-
- /**
- *
- * @param connectionInfo
- * @return
- */
- public static Connection getConnection(ConnectionInfo connectionInfo) {
- if (connectionInfo.getDataSource() == null && connectionInfo.getConnectionProperties() == null) {
- throw new IllegalArgumentException("Not enough information to create Database Connection.");
- }
-
- if(connectionInfo.getDataSource() != null && connectionInfo.getConnectionProperties() != null) {
- throw new IllegalArgumentException("Use either dataSource or ConnectionProperties. Can't use both !");
- }
-
- if(connectionInfo.getDataSource() != null) {
- return getDataSourceConnection(connectionInfo);
- } else {
- return getDriverManagerConnection(connectionInfo);
- }
- }
-
- /**
- * Initializes a DB connection on a managed environment (e.g inside Tomcat)
- *
- * @param connectionInfo
- * @return
- */
- private static Connection getDataSourceConnection(ConnectionInfo connectionInfo) {
- Connection connection = null;
-
- InitialContext ctx;
- try {
- ctx = new InitialContext();
- } catch (NamingException e) {
- throw new RuntimeException(e);
- }
- try {
- DataSource ds = (DataSource) ctx.lookup(connectionInfo.getDataSource());
- try {
- connection = ds.getConnection();
- if (connection == null) {
- throw new RuntimeException("Could not obtain a Connection from DataSource");
- }
- connection.setAutoCommit(false);
- } catch (SQLException e) {
- throw new RuntimeException(e);
- }
- } catch (NamingException e) {
- throw new RuntimeException(e);
- }
-
- return connection;
- }
-
- /**
- * Initialize a DB connection on a J2SE environment
- * For more info, see http://java.sun.com/j2se/1.3/docs/guide/jdbc/getstart/drivermanager.html
- *
- * @param connectionInfo
- * @return
- */
- private static Connection getDriverManagerConnection(ConnectionInfo connectionInfo) {
- Connection connection = null;
-
- if (connectionInfo.getConnectionProperties() == null) {
- throw new RuntimeException("No existing context and no connection properties");
- }
-
- if (connectionInfo.getConnectionProperties().getDriverClass() == null) {
- throw new RuntimeException("No jdbc driver class specified!");
- }
-
- try {
- Properties p = System.getProperties();
- p.put("derby.system.home", "target");
-
- //initialize driver and register it with DriverManager
- Class.forName(connectionInfo.getConnectionProperties().getDriverClass());
-
- //prepare to initialize connection
- String databaseUrl = connectionInfo.getConnectionProperties().getDatabaseURL();
- String userName = connectionInfo.getConnectionProperties().getUsername();
- String userPassword = connectionInfo.getConnectionProperties().getPassword();
- int loginTimeout = connectionInfo.getConnectionProperties().getLoginTimeout();
-
- DriverManager.setLoginTimeout(loginTimeout);
- if( (userName == null || userName.length() ==0) && (userPassword == null || userPassword.length()==0) ){
- //no username or password supplied
- connection = DriverManager.getConnection(databaseUrl);
- }else{
- connection = DriverManager.getConnection(databaseUrl, userName, userPassword);
- }
-
- if(connection == null){
- throw new DataSourceInitializationException("Error initializing connection : null");
- }
-
- //FIXME we should make this flexible, we can't autocommit when participating in transactions
- connection.setAutoCommit(true);
-
- }catch(ClassNotFoundException cnf){
- throw new DataSourceInitializationException("JDBC Driver '" + connectionInfo.getConnectionProperties().getDriverClass() + "' not found", cnf);
- }catch(SQLException sqle){
- throw new DataSourceInitializationException(sqle.getMessage(), sqle);
- }
-
- return connection;
- }
-
- /**
- * Cleanup and close all JDBC resources in the proper order and ignoring erros
- * @param connection The connection to be closed
- * @param queryStatement The statement to be closed
- * @param resultSet The ResultSet to be closed
- */
- public static void cleanupResources(Connection connection, PreparedStatement queryStatement, ResultSet resultSet) {
- cleanupResultSet(resultSet);
- cleanupPreparedStatement(queryStatement);
- cleanupConnection(connection);
- }
-
- /**
- * Proper cleanup the ResultSet
- * @param resultSet
- */
- private static void cleanupResultSet(ResultSet resultSet) {
- if (resultSet != null) {
- try {
- resultSet.close();
- } catch (SQLException e) {
- // We should log the error. Since we're trying to close, we don't re-throw.
- }
- }
- }
-
- /**
- * Proper cleanup the prepared statement
- * @param queryStatement
- */
- private static void cleanupPreparedStatement(PreparedStatement queryStatement) {
- if (queryStatement != null) {
- try {
- queryStatement.close();
- } catch (SQLException e) {
- // We should log the error. Since we're trying to close, we don't re-throw.
- }
- }
- }
-
- /**
- * proper cleanup the connection
- * @param connection
- */
- private static void cleanupConnection(Connection connection) {
- if (connection != null) {
- try {
- connection.close();
- } catch (SQLException e) {
- // We should log the error. Since we're trying to close, we don't re-throw.
- }
- }
- }
-
-}