solubris.marketmon.dbcp.OptimisedBasicDataSource.java Source code

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Here is the source code for solubris.marketmon.dbcp.OptimisedBasicDataSource.java

Source

package solubris.marketmon.dbcp;
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.
 */

import java.sql.SQLException;

import org.apache.commons.dbcp.AbandonedConfig;
import org.apache.commons.dbcp.BasicDataSource;
import org.apache.commons.dbcp.ConnectionFactory;
import org.apache.commons.dbcp.PoolableConnectionFactory;
import org.apache.commons.pool.KeyedObjectPoolFactory;

/**
 * Override BasicDataSource to use the {@link OptimisedPoolableConnectionFactory} which uses a preparedStatment in the validateConnection method
 *
 * @author Tim Walters
 * @version $Revision: $ $Date: $
 */
public class OptimisedBasicDataSource extends BasicDataSource {
    /**
     * Creates the PoolableConnectionFactory and attaches it to the connection pool.  This method only exists
     * so subclasses can replace the default implementation.
     * 
     * @param driverConnectionFactory JDBC connection factory
     * @param statementPoolFactory statement pool factory (null if statement pooling is turned off)
     * @param configuration abandoned connection tracking configuration (null if no tracking)
     * @throws SQLException if an error occurs creating the PoolableConnectionFactory
     */
    @SuppressWarnings("rawtypes")
    @Override
    protected void createPoolableConnectionFactory(ConnectionFactory driverConnectionFactory,
            KeyedObjectPoolFactory statementPoolFactory, AbandonedConfig configuration) throws SQLException {
        PoolableConnectionFactory connectionFactory = null;
        try {
            connectionFactory = new OptimisedPoolableConnectionFactory(driverConnectionFactory, connectionPool,
                    statementPoolFactory, validationQuery, validationQueryTimeout, connectionInitSqls,
                    defaultReadOnly, defaultAutoCommit, defaultTransactionIsolation, defaultCatalog, configuration);
            validateConnectionFactory(connectionFactory);
        } catch (RuntimeException e) {
            throw e;
        } catch (Exception e) {
            throw (SQLException) new SQLException(
                    "Cannot create PoolableConnectionFactory (" + e.getMessage() + ")").initCause(e);
        }
    }
}