OTS.Servlets.ApplicationListener.java Source code

Introduction

Here is the source code for OTS.Servlets.ApplicationListener.java

Source

package OTS.Servlets;

/*
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 */

import App.NewHibernateUtil;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.file.StandardOpenOption;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;
import org.hibernate.SessionFactory;
import org.hibernate.c3p0.internal.C3P0ConnectionProvider;
import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
import org.hibernate.internal.SessionFactoryImpl;

/**
 *
 * @author Eb
 */
@WebListener
public class ApplicationListener implements ServletContextListener {

    @Override
    public void contextInitialized(ServletContextEvent sce) {

        //  Log("contextInitialized");
    }

    @Override
    public void contextDestroyed(ServletContextEvent sce) {
        //System.out.println("ServletContextListener contextDestroyed");
        try {
            closeSessionFactory(NewHibernateUtil.getSessionFactory());
        } catch (Throwable ex) {
            if (!NewHibernateUtil.getSessionFactory().isClosed()) {
                NewHibernateUtil.getSessionFactory().close();
            }

        }

    }

    private void closeSessionFactory(SessionFactory factory) {
        if (factory instanceof SessionFactoryImpl) {
            SessionFactoryImpl sf = (SessionFactoryImpl) factory;
            ConnectionProvider conn = sf.getConnectionProvider();
            if (conn instanceof C3P0ConnectionProvider) {
                ((C3P0ConnectionProvider) conn).close();
            }
        }
        factory.close();
    }

    public void Log(String text) {
        try {

            File file = new File("c:/junk/otslog.txt");

            // if file doesnt exists, then create it
            if (!file.exists()) {
                file.createNewFile();
            }

            FileWriter fw = new FileWriter(file.getAbsoluteFile());
            BufferedWriter bw = new BufferedWriter(fw);

            bw.write(text);
            bw.close();

            System.out.println("Done");

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}