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/*
@VaadinApache2LicenseForJavaFiles@
*/
package com.vaadin.terminal.gwt.server;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import com.vaadin.Application;
import com.vaadin.terminal.gwt.server.ServletPortletHelper.ApplicationClassException;
/**
* This servlet connects a Vaadin Application to Web.
*
* @author Vaadin Ltd.
* @version
* @VERSION@
* @since 5.0
*/
@SuppressWarnings("serial")
public class ApplicationServlet extends AbstractApplicationServlet {
// Private fields
private Class<? extends Application> applicationClass;
/**
* Called by the servlet container to indicate to a servlet that the servlet
* is being placed into service.
*
* @param servletConfig
* the object containing the servlet's configuration and
* initialization parameters
* @throws javax.servlet.ServletException
* if an exception has occurred that interferes with the
* servlet's normal operation.
*/
@Override
public void init(javax.servlet.ServletConfig servletConfig)
throws javax.servlet.ServletException {
super.init(servletConfig);
// Loads the application class using the classloader defined in the
// deployment configuration
try {
applicationClass = ServletPortletHelper
.getApplicationClass(getDeploymentConfiguration());
} catch (ApplicationClassException e) {
throw new ServletException(e);
}
}
@Override
protected Application getNewApplication(HttpServletRequest request)
throws ServletException {
// Creates a new application instance
try {
final Application application = getApplicationClass().newInstance();
return application;
} catch (final IllegalAccessException e) {
throw new ServletException("getNewApplication failed", e);
} catch (final InstantiationException e) {
throw new ServletException("getNewApplication failed", e);
} catch (ClassNotFoundException e) {
throw new ServletException("getNewApplication failed", e);
}
}
@Override
protected Class<? extends Application> getApplicationClass()
throws ClassNotFoundException {
return applicationClass;
}
}
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