MysqlDataSourceFactory.java
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上传日期:2022-07-20
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文件大小:4k
源码类别:
数据库编程
开发平台:
Java
- /*
- Copyright (C) 2002 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- package com.mysql.jdbc.jdbc2.optional;
- import java.util.Hashtable;
- import javax.naming.Context;
- import javax.naming.Name;
- import javax.naming.Reference;
- import javax.naming.spi.ObjectFactory;
- /**
- * Factory class for MysqlDataSource objects
- *
- * @author Mark Matthews
- */
- public class MysqlDataSourceFactory
- implements ObjectFactory {
- //~ Instance/static variables .............................................
- /**
- * The class name for a standard MySQL DataSource.
- */
- protected final String dataSourceClassName = "com.mysql.jdbc.jdbc2.optional.MysqlDataSource";
- /**
- * The class name for a poolable MySQL DataSource.
- */
- protected final String poolDataSourceName = "com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolDataSource";
- //~ Methods ...............................................................
- /**
- * DOCUMENT ME!
- *
- * @param refObj DOCUMENT ME!
- * @param nm DOCUMENT ME!
- * @param ctx DOCUMENT ME!
- * @param env DOCUMENT ME!
- * @return DOCUMENT ME!
- * @throws Exception DOCUMENT ME!
- */
- public Object getObjectInstance(Object refObj, Name nm, Context ctx,
- Hashtable env)
- throws Exception {
- Reference ref = (Reference) refObj;
- String className = ref.getClassName();
- if (className != null
- && (className.equals(dataSourceClassName) || className.equals(
- poolDataSourceName))) {
- MysqlDataSource dataSource = null;
- try {
- dataSource = (MysqlDataSource) Class.forName(className).newInstance();
- } catch (Exception ex) {
- throw new RuntimeException("Unable to create DataSource of "
- + "class '" + className
- + "', reason: " + ex.toString());
- }
- int portNumber = 3306;
- String portNumberAsString = (String) ref.get("port").getContent();
- if (portNumberAsString != null) {
- portNumber = Integer.parseInt(portNumberAsString);
- }
- dataSource.setPort(portNumber);
- String user = (String) ref.get("user").getContent();
- if (user != null) {
- dataSource.setUser(user);
- }
- String password = (String) ref.get("password").getContent();
- if (password != null) {
- dataSource.setPassword(password);
- }
- String serverName = (String) ref.get("serverName").getContent();
- if (serverName != null) {
- dataSource.setServerName(serverName);
- }
- String databaseName = (String) ref.get("databaseName").getContent();
- if (databaseName != null) {
- dataSource.setDatabaseName(databaseName);
- }
- return dataSource;
- } else { // We can't create an instance of the reference
- return null;
- }
- }
- }