ReloadController.java
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package com.myproject.webapp.controller;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.myproject.webapp.listener.StartupListener;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
/**
* This class is used to reload the drop-downs initialized in the
* StartupListener.
*
* <p>
* <a href="ReloadController.java.html"><i>View Source</i></a>
* </p>
*
* @author <a href="mailto:matt@raibledesigns.com">Matt Raible</a>
*/
@Controller
@RequestMapping("/admin/reload*")
public class ReloadController {
private transient final Log log = LogFactory.getLog(ReloadController.class);
@RequestMapping(method = RequestMethod.GET)
@SuppressWarnings("unchecked")
public ModelAndView handleRequest(HttpServletRequest request,
HttpServletResponse response)
throws Exception {
if (log.isDebugEnabled()) {
log.debug("Entering 'execute' method");
}
StartupListener.setupContext(request.getSession().getServletContext());
String referer = request.getHeader("Referer");
if (referer != null) {
log.info("reload complete, reloading user back to: " + referer);
List<String> messages = (List) request.getSession().getAttribute(BaseFormController.MESSAGES_KEY);
if (messages == null) {
messages = new ArrayList();
}
messages.add("Reloading options completed successfully.");
request.getSession().setAttribute(BaseFormController.MESSAGES_KEY, messages);
response.sendRedirect(response.encodeRedirectURL(referer));
return null;
} else {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>Context Reloaded</title>");
out.println("</head>");
out.println("<body bgcolor=\"white\">");
out.println("<script type=\"text/javascript\">");
out.println("alert('Context Reload Succeeded! Click OK to continue.');");
out.println("history.back();");
out.println("</script>");
out.println("</body>");
out.println("</html>");
}
return null;
}
}