net.java.ao.db.DBCPPoolProvider.java Source code

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Here is the source code for net.java.ao.db.DBCPPoolProvider.java

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/*
 * Copyright 2007 Daniel Spiewak
 * 
 * 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 net.java.ao.db;

import java.sql.Connection;
import java.sql.SQLException;

import net.java.ao.DatabaseProvider;
import net.java.ao.PoolProvider;

import org.apache.commons.dbcp.BasicDataSource;

/**
 * @author Daniel Spiewak
 */
public class DBCPPoolProvider extends PoolProvider {
    private BasicDataSource ds;

    public DBCPPoolProvider(DatabaseProvider delegate) {
        super(delegate);

        ds = new BasicDataSource();
        try {
            ds.setDriverClassName(delegate.getDriverClass().getCanonicalName());
        } catch (ClassNotFoundException e) {
        }
        ds.setUsername(getUsername());
        ds.setPassword(getPassword());
        ds.setUrl(getURI());

        ds.setMaxActive(30);
    }

    @Override
    protected Connection getConnectionImpl() throws SQLException {
        return ds.getConnection();
    }

    @Override
    public void dispose() {
        try {
            ds.close();
        } catch (SQLException e) {
        }

        ds = null;

        super.dispose();
    }

    public static boolean isAvailable() {
        try {
            Class.forName("org.apache.commons.dbcp.BasicDataSource");
        } catch (ClassNotFoundException e) {
            return false;
        }

        return true;
    }
}