DataSourceProvider.java

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2016 Ferenc Karsany
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

package org.obridge.util;

import com.mchange.v2.c3p0.ComboPooledDataSource;

import javax.sql.DataSource;
import java.beans.PropertyVetoException;
import java.util.HashMap;
import java.util.Map;

/**
 * @author fkarsany
 */
public final class DataSourceProvider {

    private static Map<String, ComboPooledDataSource> dataSourcePool = null;

    private DataSourceProvider() {
    }

    public static DataSource getDataSource(String jdbcURL) throws PropertyVetoException {

        if (dataSourcePool == null) {
            dataSourcePool = new HashMap<>();
        }

        if (!dataSourcePool.containsKey(jdbcURL)) {

            ComboPooledDataSource dataSource = new ComboPooledDataSource();
            dataSource.setDriverClass("oracle.jdbc.OracleDriver");
            dataSource.setJdbcUrl(jdbcURL);

            dataSourcePool.put(jdbcURL, dataSource);
        }

        return dataSourcePool.get(jdbcURL);
    }

}