LoaderDatabaseProperties.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it).
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, 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
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */


package org.openspcoop2.pdd.config.loader.cli;

import java.io.InputStream;
import java.util.Properties;

import org.openspcoop2.core.commons.CoreException;

/**
* LoaderDatabaseProperties
*
* @author Poli Andrea (apoli@link.it)
* @author $Author$
* @version $Rev$, $Date$
*/
public class LoaderDatabaseProperties {
    
    private static LoaderDatabaseProperties staticInstance = null;
    private static synchronized void init() throws CoreException{
        if(LoaderDatabaseProperties.staticInstance == null){
            LoaderDatabaseProperties.staticInstance = new LoaderDatabaseProperties();
        }
    }
    public static LoaderDatabaseProperties getInstance() throws CoreException{
        if(LoaderDatabaseProperties.staticInstance == null){
            // spotbugs warning 'SING_SINGLETON_GETTER_NOT_SYNCHRONIZED': l'istanza viene creata allo startup
            synchronized (LoaderDatabaseProperties.class) {
                LoaderDatabaseProperties.init();
            }
        }
        return LoaderDatabaseProperties.staticInstance;
    }
    
    
    
    
    private static final String PROPERTIES_FILE = "/config_loader.cli.database.properties";
    
    private String tipoDatabase = null;
    private String driver = null;
    private String connectionUrl = null;
    private String username = null;
    private String password = null;
    
    
    private LoaderDatabaseProperties() throws CoreException {

        Properties props = new Properties();
        try {
            InputStream is = LoaderDatabaseProperties.class.getResourceAsStream(LoaderDatabaseProperties.PROPERTIES_FILE);
            props.load(is);
        } catch(Exception e) {
            throw new CoreException("Errore durante l'init delle properties", e);
        }
        
        // PROPERTIES
                
        this.tipoDatabase = this.getProperty(props, "tipoDatabase", true);
        
        this.driver = this.getProperty(props, "driver", true);
        this.connectionUrl = this.getProperty(props, "connection-url", true);
        this.username = this.getProperty(props, "username", true);
        this.password = this.getProperty(props, "password", true);

    }
    
    private String getProperty(Properties props,String name,boolean required) throws CoreException{
        String tmp = props.getProperty(name);
        if(tmp==null){
            if(required){
                throw new CoreException("Property '"+name+"' not found");
            }
            else{
                return null;
            }
        }
        else{
            return tmp.trim();
        }
    }

    public String getTipoDatabase() {
        return this.tipoDatabase;
    }
    public String getDriver() {
        return this.driver;
    }
    public String getConnectionUrl() {
        return this.connectionUrl;
    }
    public String getUsername() {
        return this.username;
    }
    public String getPassword() {
        return this.password;
    }
}