ClinicController


1   package org.springframework.samples.petclinic.web;
2   
3   import java.util.HashMap  ;
4   import java.util.Map  ;
5   
6   import javax.servlet.ServletException  ;
7   import javax.servlet.http.HttpServletRequest  ;
8   import javax.servlet.http.HttpServletResponse  ;
9   
10  import org.springframework.beans.factory.InitializingBean;
11  import org.springframework.context.ApplicationContextException;
12  import org.springframework.samples.petclinic.Clinic;
13  import org.springframework.samples.petclinic.Owner;
14  import org.springframework.web.bind.RequestUtils;
15  import org.springframework.web.servlet.ModelAndView;
16  import org.springframework.web.servlet.mvc.multiaction.MultiActionController;
17  
18  /**
19   * <code>MultiActionController</code> that handles all non-form URL's.
20   *
21   * @author Ken Krebs
22   */
23  public class ClinicController extends MultiActionController implements InitializingBean {
24  
25      private Clinic clinic;
26  
27      public void setClinic(Clinic clinic) {
28          this.clinic = clinic;
29      }
30  
31      public void afterPropertiesSet() throws Exception   {
32          if (clinic == null)
33              throw new ApplicationContextException("Must set clinic bean property on " + getClass());
34      }
35  
36      // handlers
37  
38      /**
39       * Custom handler for welcome
40       * @param request current HTTP request
41       * @param response current HTTP response
42       * @return a ModelAndView to render the response
43       */
44      public ModelAndView welcomeHandler(HttpServletRequest   request, HttpServletResponse   response) throws ServletException   {
45          return new ModelAndView("welcomeView");
46      }
47  
48      /**
49       * Custom handler for vets display
50       * @param request current HTTP request
51       * @param response current HTTP response
52       * @return a ModelAndView to render the response
53       */
54      public ModelAndView vetsHandler(HttpServletRequest   request, HttpServletResponse   response) throws ServletException   {
55          return new ModelAndView("vetsView", "vets", clinic.getVets());
56      }
57  
58      /**
59       * Custom handler for owner display
60       * @param request current HTTP request
61       * @param response current HTTP response
62       * @return a ModelAndView to render the response
63       */
64      public ModelAndView ownerHandler(HttpServletRequest   request, HttpServletResponse   response) throws ServletException   {
65          Owner owner = clinic.loadOwner(RequestUtils.getIntParameter(request, "ownerId", 0));
66          if (owner == null) {
67              return new ModelAndView("findOwnersRedirect");
68          }
69          Map   model = new HashMap  ();
70          model.put("owner", owner);
71          return new ModelAndView("ownerView", "model", model);
72      }
73  
74  }
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