ProcessNetworkServletContextListener.java

package com.revolsys.parallel.tools;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.revolsys.parallel.process.ProcessNetwork;

public class ProcessNetworkServletContextListener implements ServletContextListener {

  private ProcessNetwork processNetwork;

  @Override
  public void contextDestroyed(final ServletContextEvent servletContextEvent) {
    if (this.processNetwork != null) {
      this.processNetwork.stop();
    }
  }

  @Override
  public void contextInitialized(final ServletContextEvent servletContextEvent) {
    final ServletContext servletContext = servletContextEvent.getServletContext();
    final WebApplicationContext applicationContext = WebApplicationContextUtils
      .getRequiredWebApplicationContext(servletContext);
    this.processNetwork = (ProcessNetwork)applicationContext.getBean("processNetwork");
    this.processNetwork.start();
  }
}