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mango is a dao framework.
There is a newer version: 1.06
/*
 * Copyright 2014 mango.concurrent.cc
 *
 * The Netty Project 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 cc.concurrent.mango;

import javax.sql.DataSource;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.Properties;
import java.util.logging.Logger;

/**
 * 用于测试的数据库连接池，每次getConnection()都会返回一个新的连接
 *
 * @author ash
 */
public class DriverManagerDataSource implements DataSource {

    private String url;
    private String username;
    private String password;

    public DriverManagerDataSource(String driverClassName, String url, String username, String password) {
        String driverClassNameToUse = driverClassName.trim();
        try {
            Class.forName(driverClassNameToUse);
        }
        catch (ClassNotFoundException e) {
            throw new IllegalStateException("Could not load JDBC driver class [" + driverClassNameToUse + "]", e);
        }
        this.url = url;
        this.username = username;
        this.password = password;
    }

    @Override
    public Connection getConnection() throws SQLException {
        Properties props = new Properties();
        props.setProperty("user", username);
        props.setProperty("password", password);
        return DriverManager.getConnection(url, props);
    }

    @Override
    public Connection getConnection(String username, String password) throws SQLException {
        throw new UnsupportedOperationException();
    }

    @Override
    public PrintWriter getLogWriter() throws SQLException {
        throw new UnsupportedOperationException();
    }

    @Override
    public void setLogWriter(PrintWriter out) throws SQLException {
        throw new UnsupportedOperationException();
    }

    @Override
    public void setLoginTimeout(int seconds) throws SQLException {
        throw new UnsupportedOperationException();
    }

    @Override
    public int getLoginTimeout() throws SQLException {
        throw new UnsupportedOperationException();
    }

    @Override
    public Logger getParentLogger() throws SQLFeatureNotSupportedException {
        throw new UnsupportedOperationException();
    }

    @Override
    public  T unwrap(Class iface) throws SQLException {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean isWrapperFor(Class iface) throws SQLException {
        throw new UnsupportedOperationException();
    }
}