/**
    * @author SrinivasJasti
    * 
    */
   package org.srinivas.siteworks.dbrestserver.webconfig;
   
   import javax.servlet.ServletContext;
   import javax.servlet.ServletRegistration;
   
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.web.WebApplicationInitializer;
  import org.springframework.web.context.ContextLoaderListener;
  import org.springframework.web.context.WebApplicationContext;
  import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
  import org.springframework.web.servlet.DispatcherServlet;
  
  /**
   * The Class DbServerWebInitializer.
   */
  public class DbServerWebInitializer implements WebApplicationInitializer {
  
  	private static final Logger logger = LoggerFactory.getLogger(DbServerWebInitializer.class);
  
  	/* (non-Javadoc)
  	 * @see org.springframework.web.WebApplicationInitializer#onStartup(javax.servlet.ServletContext)
  	 */
  	@Override
  	public void onStartup(ServletContext container) {
  		logger.info("Started to pickup the annotated classes at DbServerWebInitializer");
  		startServlet(container);
  	}
  
  	/**
  	 * Start servlet.
  	 *
  	 * @param container the container
  	 */
  	private void startServlet(final ServletContext container) {
  		WebApplicationContext dispatcherContext = registerContext(DbServerMvcContextConfiguration.class);
  		DispatcherServlet dispatcherServlet = new DispatcherServlet(dispatcherContext);
  		container.addListener(new ContextLoaderListener(dispatcherContext));
  		container.addListener(new DbServerCamelListener());
  		ServletRegistration.Dynamic dispatcher;
  		dispatcher = container.addServlet("dispatcher", dispatcherServlet);
  		dispatcher.setLoadOnStartup(1);
  		dispatcher.addMapping("/*");
  	}
  
  	/**
  	 * Register context.
  	 *
  	 * @param annotatedClasses the annotated classes
  	 * @return the web application context
  	 */
  	private WebApplicationContext registerContext(final Class<?>... annotatedClasses) {
  		logger.info("Using AnnotationConfigWebApplicationContext createContext");
  		AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
  		context.register(annotatedClasses);
  		return context;
  	}
  
  }