org.hako.dao.db.vendor.DbcpVendor.java Source code

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Here is the source code for org.hako.dao.db.vendor.DbcpVendor.java

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/**
 * Copyright 2012 XnnYygn
 * 
 * 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 org.hako.dao.db.vendor;

import java.sql.Connection;
import java.util.Map;

import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.dbcp.BasicDataSource;
import org.hako.util.MapUtils;

/**
 * Database connector based on <a
 * href="http://commons.apache.org/dbcp/">common-dbcp</a>.
 * 
 * @author xnnyygn
 * @version %I%, %G%
 * @since 1.0.0
 * @see BasicDataSource
 */
public class DbcpVendor extends DataSourceAdapter {

    /**
     * Create with four usually properties.
     * 
     * @param driverClassName driver class name
     * @param url
     * @param username
     * @param password
     */
    public DbcpVendor(String driverClassName, String url, String username, String password) {
        this(MapUtils.apply(String.class, Object.class, "driverClassName", driverClassName, "url", url, "username",
                username, "password", password));
    }

    /**
     * Create with properties.
     * 
     * @param props properties
     */
    public DbcpVendor(Map<String, Object> props) {
        super(createBasicDataSource(props));
    }

    /**
     * Create {@link BasicDataSource} instance with properties.
     * 
     * @param props properties
     * @return basic data source
     */
    private static BasicDataSource createBasicDataSource(Map<String, Object> props) {
        BasicDataSource source = new BasicDataSource();
        try {
            for (Map.Entry<String, Object> e : props.entrySet()) {
                BeanUtils.setProperty(source, e.getKey(), e.getValue());
            }
            return source;
        } catch (Exception e) {
            // convert to runtime exception
            throw new RuntimeException(e);
        }
    }

    @Override
    public void releaseQuietly(Connection connection) {
        // do nothing
    }

}