/*
 * File    : ReportsRequestProcessor.java
 * Created : 27-mar-2003 17:11
 * By      : fbusquets
 *
 * JClic - Authoring and playing system for educational activities
 *
 * Copyright (C) 2000 - 2005 Francesc Busquets & Departament
 * d'Educacio de la Generalitat de Catalunya
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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
 * GNU General Public License for more details (see the LICENSE file).
 */

package edu.xtec.jclic.report.rp;

import edu.xtec.jclic.ReportServerConstants;
import static edu.xtec.jclic.ReportServerConstants.CFG_FILE;
import edu.xtec.jclic.report.BasicJDBCBridge;
import edu.xtec.jclic.report.ReportServerJDBCBridge;
import edu.xtec.servlet.RequestProcessor;
import edu.xtec.util.Options;
import edu.xtec.util.db.*;
import java.io.File;
import java.io.FileInputStream;
import java.util.Properties;

/**
 *
 * @author Francesc Busquets (fbusquets@xtec.cat)
 * @version 13.09.16
 */
public abstract class ReportsRequestProcessor extends RequestProcessor implements ReportServerConstants{
    
    protected static ReportServerJDBCBridge bridge;
    protected static Properties prop;
    
    public synchronized static void setProperties(Properties prop) {
        if(prop!=null){
            if(bridge!=null){
                bridge.end();
                bridge=null;
            }
        }
        ReportsRequestProcessor.prop=prop;
    }

    public synchronized static Properties getProperties() {
        if(prop==null)
            prop=new Properties();
        return prop;
    }
    
    public synchronized static void loadProperties(String file) throws Exception{
        if(prop==null){
            prop=new Properties();
            prop.load(ReportServerConstants.class.getResourceAsStream(CFG_FILE));
            loadLocalProperties(file);
        }
    }
    
    public synchronized static void loadLocalProperties(String file) throws Exception{
        if(prop==null)
            prop=new Properties();
        if(file==null)
            file=CFG_FILE;
        if(file!=null){
            File f=new File(file);
            if(!f.isAbsolute())
                f=new File(System.getProperty("user.home"), file);
            if(f.exists()){
                FileInputStream is=new FileInputStream(f);
                prop.load(is);
                is.close();
            }
        }
    }

    public synchronized static void initJDBCBridge(String propFile) throws Exception{
        if(prop==null)
            loadProperties(propFile);
        if(bridge==null){                                    
            ConnectionBeanProvider cbp=ConnectionBeanProvider.getConnectionBeanProvider(true, Options.toStringMap(prop));
            boolean createTables=!"false".equalsIgnoreCase((String)prop.get(BasicJDBCBridge.CREATE_TABLES_KEY));
            String tablePrefix=(String)prop.get(BasicJDBCBridge.TABLE_PREFIX_KEY);
            bridge=new ReportServerJDBCBridge(cbp, createTables, tablePrefix);
        }
    }
    
    @Override
    public boolean init() throws Exception{
        
        if(!super.init())
            return false;
        
        if(bridge==null)
            initJDBCBridge(null);
        
        return true;
    }
    
}