Logback: the reliable, generic, fast and flexible logging framework.
Copyright (C) 1999-2015, QOS.ch. All rights reserved.
This program and the accompanying materials are dual-licensed under
either the terms of the Eclipse Public License v1.0 as published by
the Eclipse Foundation
  or (per the licensee's choosing)
under the terms of the GNU Lesser General Public License version 2.1
as published by the Free Software Foundation.
/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.core.db;

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

import javax.sql.DataSource;

import ch.qos.logback.core.db.dialect.SQLDialectCode;

The DataSourceConnectionSource is an implementation of ConnectionSource that obtains the Connection in the recommended JDBC manner based on a DataSource. 

For more information about this component, please refer to the online manual at
http://logback.qos.ch/manual/appenders.html#DBAppender
Author:
Ray DeCampo, Ceki Gülcü/**
 * The DataSourceConnectionSource is an implementation of
 * {@link ConnectionSource} that obtains the Connection in the recommended JDBC
 * manner based on a {@link javax.sql.DataSource DataSource}.
 * <p>
 * 
 * For more information about this component, please refer to the online manual at
 * http://logback.qos.ch/manual/appenders.html#DBAppender
 * 
 * @author Ray DeCampo
 * @author Ceki G&uuml;lc&uuml;
 */
public class DataSourceConnectionSource extends ConnectionSourceBase {

    private DataSource dataSource;

    @Override
    public void start() {
        if (dataSource == null) {
            addWarn("WARNING: No data source specified");
        } else {
            discoverConnectionProperties();
            if (!supportsGetGeneratedKeys() && getSQLDialectCode() == SQLDialectCode.UNKNOWN_DIALECT) {
                addWarn("Connection does not support GetGeneratedKey method and could not discover the dialect.");
            }
        }
        super.start();
    }

    
See Also:
getConnection.getConnection()/**
     * @see ch.qos.logback.core.db.ConnectionSource#getConnection()
     */
    public Connection getConnection() throws SQLException {
        if (dataSource == null) {
            addError("WARNING: No data source specified");
            return null;
        }

        if (getUser() == null) {
            return dataSource.getConnection();
        } else {
            return dataSource.getConnection(getUser(), getPassword());
        }
    }

    public DataSource getDataSource() {
        return dataSource;
    }

    public void setDataSource(DataSource dataSource) {
        this.dataSource = dataSource;
    }
}