ParosAbstractTable.java

/*
*
* Paros and its related class files.
* 
* Paros is an HTTP/HTTPS proxy for assessing web application security.
* Copyright (C) 2003-2004 Chinotec Technologies Company
* 
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Clarified Artistic License
* as published by the Free Software Foundation.
* 
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* Clarified Artistic License for more details.
* 
* You should have received a copy of the Clarified Artistic License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
// ZAP: 2012/04/23 Added @Override annotation to the appropriate method.
// ZAP: 2013/03/03 Issue 546: Remove all template Javadoc comments
// ZAP: 2013/05/02 Re-arranged all modifiers into Java coding standard order
// ZAP: 2015/02/09 Issue 1525: Introduce a database interface layer to allow for alternative implementations

package org.parosproxy.paros.db.paros;

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

import org.parosproxy.paros.db.DatabaseException;
import org.parosproxy.paros.db.DatabaseListener;
import org.parosproxy.paros.db.DatabaseServer;
import org.parosproxy.paros.db.DatabaseUnsupportedException;

 public abstract class ParosAbstractTable implements DatabaseListener {

    private Connection connection = null;
    private ParosDatabaseServer server = null;
    
    public ParosAbstractTable() {
    }
    
    @Override
    public void databaseOpen(DatabaseServer server) throws DatabaseException, DatabaseUnsupportedException {
    	if (! (server instanceof ParosDatabaseServer)) {
    		throw new DatabaseUnsupportedException();
    	}
        this.server = (ParosDatabaseServer) server;
        connection = null;
		reconnect(getConnection());
    }
    
    protected Connection getConnection() throws DatabaseException {
        try {
			if (connection == null) {
			    connection = server.getNewConnection();            
			}
			return connection;
		} catch (SQLException e) {
			throw new DatabaseException(e);
		}
    }
    
    protected abstract void reconnect(Connection connection) throws DatabaseException;

}