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package com.bestray.transporttracking;

import com.bestray.transtracking.exceptions.TransTrackException;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Properties;
import javax.sql.DataSource;

import org.springframework.jdbc.datasource.DriverManagerDataSource;

/**
 *
 * @author Girija Sahu
 */
public class DataSourceObject {

    private static DriverManagerDataSource ds;
    private static Properties properties;
    
    public static DataSource getDataSourceObject()throws TransTrackException{
        try{
            properties=new Properties();
            FileInputStream fis=new FileInputStream(System.getProperty("user.home")+File.separator+"transtrack"+"/transtrack.properties");
            properties.load(fis);
            fis.close();
        File file =new File(System.getProperty("user.home")+File.separator+"transtrack"+"/transtrack.properties");
        if (ds == null || isFileUpdated(file)) {
            ds = new org.springframework.jdbc.datasource.DriverManagerDataSource();
            ds.setDriverClassName(properties.getProperty("driverClassName"));
            ds.setUrl(properties.getProperty("url"));
            ds.setUsername(properties.getProperty("user"));
            ds.setPassword(properties.getProperty("password"));
        }
        }catch(IOException ie){
            throw new TransTrackException(" Failed to load the Driver");
        }
        
        return ds;
    }
    private static long timeStamp;
    private static File file;

    private static boolean isFileUpdated( File file1 ) {
        file=file1;
        long timeStamp1 = file.lastModified();

        if( timeStamp != timeStamp1 ) {
            timeStamp = timeStamp1;
    
            return true;
        }
 
        return false;
    }
}