MVC 1.0 - Now Even Better!

MVC 1.0, as specified by JSR 371, may not be targeted for the upcoming Java EE 8 release, but the specification is still going on as a standalone specification. It is already possible to use the technology in a Java EE 7 environment and as Java EE 8 and 9 evolves, MVC 1.0 will be kept aligned to take advantage of the features provided by the platform.

This session will go through the fundamentals of this specification and explain the core concepts. We will show lots of code samples showing how to use the framework to build MVC 1.0 applications.

There will even be a demo of tooling support available and tips’n’tricks on how to extend the framework. After this session you will have everything you need to get started using the technology to quickly build secure, flexible, localized MVC Web applications.

Transcript

1. @ivar_grimstad
   jDays 2017 - #JSR371
   MVC 1.0 - Now Even Better!
   Ivar Grimstad
   Principal Consultant, Cybercom Sweden
   

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2. @ivar_grimstad
   jDays 2017 - #JSR371
   @ivar_grimstad
   https://github.com/ivargrimstad
   https://www.linkedin.com/in/ivargrimstad
   http://lanyrd.com/profile/ivargrimstad/
   

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3. @ivar_grimstad
   jDays 2017 - #JSR371
   JSR 371 Status
   MVC 1.0
   Demo and Samples
   

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4. @ivar_grimstad
   jDays 2017 - #JSR371
   JSR 371 Status
   

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5. @ivar_grimstad
   jDays 2017 - #JSR371
   

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6. @ivar_grimstad
   jDays 2017 - #JSR371
   

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7. @ivar_grimstad
   jDays 2017 - #JSR371
   

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8. @ivar_grimstad
   jDays 2017 - #JSR371
   @Controller
   to the Community !
   

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9. @ivar_grimstad
   jDays 2017 - #JSR371
   January 2017
   Transfer

   Ballot
   August 2014
   First Proposal
   September 2014
   Approved by JCP
   
   Executive Committee
   September 2014
   Expert Group starts
   
   discussions
   March 2015
   EDR 1
   October 2016
   October 2015
   EDR 2
   JavaOne
   Past Activities
   

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10. @ivar_grimstad
    jDays 2017 - #JSR371
    Current Activities
    Transfer approved by the Executive Committee

    Thanks!
    Finalize Transfer

    Oracle Legal is working on the final details
    New Infrastructure Setup

    Started
    Licensing

    Investigating
    

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11. @ivar_grimstad
    jDays 2017 - #JSR371
    Future Activities
    Formally move infrastructure from java.net 

    Bring in Christian Kaltepoth as co spec-lead

    Revise the Schedule

    Adopt-a-JSR

    

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12. @ivar_grimstad
    jDays 2017 - #JSR371
    Infrastructure Move
    

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13. @ivar_grimstad
    jDays 2017 - #JSR371
    Infrastructure Setup Changes
    Code

    java.net -> GitHub (https://github.com/mvc-spec)
    Issue Tracker

    java.net -> GitHub (https://github.com/mvc-spec/mvc-spec/issues)
    Mailing Lists

    java.net -> Google Groups (jsr371-users@googlegroups.com)
    Web Site

    java.net -> GitHub Pages (http://www.mvc-spec.org/)
    

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14. @ivar_grimstad
    jDays 2017 - #JSR371
    Adopt-a-JSR
    

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15. @ivar_grimstad
    jDays 2017 - #JSR371
    Write Code!
    Blog
    Tweet
    Give us Feedback
    Create a Logotype
    

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16. @ivar_grimstad
    jDays 2017 - #JSR371
    MVC 1.0 Talks
    DEVNEXUS (http://devnexus.com/)

    Atlanta, USA - February 22-24
    jDays (http://www.jdays.se/)

    Gothenburg, Sweden - Mars 7-8
    JavaLand (https://www.javaland.eu/)

    Brühl, Germany - Mars 28-30
    Developer Week (http://www.developer-week.de/)

    Nürnberg, Germany - June 26-29
    

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17. @ivar_grimstad
    jDays 2017 - #JSR371
    MVC 1.0
    

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18. @ivar_grimstad
    jDays 2017 - #JSR371
    Action-based MVC
    

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19. @ivar_grimstad
    jDays 2017 - #JSR371
    Controller
    Model View
    Request
    Update
    Update
    

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20. @ivar_grimstad
    jDays 2017 - #JSR371
    Controller
    Model View
    Request
    Update
    Update
    

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21. @ivar_grimstad
    jDays 2017 - #JSR371
    Controller
    Model View
    Request
    Update
    Update
    

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22. @ivar_grimstad
    jDays 2017 - #JSR371
    Existing Java EE Technologies
    

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23. @ivar_grimstad
    jDays 2017 - #JSR371
    Key Decisions
    

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24. @ivar_grimstad
    jDays 2017 - #JSR371
    Key Decisions
    

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25. @ivar_grimstad
    jDays 2017 - #JSR371
    Build MVC 1.0 on top of JAX-RS
    

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26. @ivar_grimstad
    jDays 2017 - #JSR371
    Controllers
    

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27. @ivar_grimstad
    jDays 2017 - #JSR371
    Controller
    public class HelloController {
    }
    

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28. @ivar_grimstad
    jDays 2017 - #JSR371
    Controller
    @Path(“hello”)
    public class HelloController {
    }
    

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29. @ivar_grimstad
    jDays 2017 - #JSR371
    Controller
    @Controller
    @Path(“hello”)
    public class HelloController {
    }
    

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30. @ivar_grimstad
    jDays 2017 - #JSR371
    Views
    

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31. @ivar_grimstad
    jDays 2017 - #JSR371
    View
    @Controller
    @Path(“hello”)
    public class HelloController {
    }
    

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32. @ivar_grimstad
    jDays 2017 - #JSR371
    View
    @Controller
    @Path(“hello”)
    public class HelloController {
    @GET
    public String hello() {
    return “hello.jsp”;
    }
    }
    

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33. @ivar_grimstad
    jDays 2017 - #JSR371
    View
    @Controller
    @Path(“hello”)
    public class HelloController {
    @GET
    public Viewable hello() {
    return new Viewable(“hello.jsp”);
    }
    }
    

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34. @ivar_grimstad
    jDays 2017 - #JSR371
    View
    @Controller
    @Path(“hello”)
    public class HelloController {
    @GET
    public Response hello() {
    return Response.status(OK).entity(“hello.jsp”).build();
    }
    }
    

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35. @ivar_grimstad
    jDays 2017 - #JSR371
    View
    @Controller
    @Path(“hello”)
    public class HelloController {
    @View(“hello.jsp”)
    @GET
    public void hello() {
    }
    }
    

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36. @ivar_grimstad
    jDays 2017 - #JSR371
    View
    @View(“hello.jsp”)
    @Controller
    @Path(“hello”)
    public class HelloController {
    @GET
    public void hello() {
    }
    }
    

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37. @ivar_grimstad
    jDays 2017 - #JSR371
    Models
    

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38. @ivar_grimstad
    jDays 2017 - #JSR371
    Model
    @Named(“greeting”)
    @RequestScoped
    public class Greeting {
    private String message;
    public void setMessage(String message) {
    this.message = message;
    }
    public void getMessage() { return message; }
    }
    

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39. @ivar_grimstad
    jDays 2017 - #JSR371
    Model
    @View(“hello.jsp”)
    @Controller
    @Path(“hello”)
    public class HelloController {
    @GET
    public void hello() {
    }
    }
    

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40. @ivar_grimstad
    jDays 2017 - #JSR371
    Model
    @View(“hello.jsp”)
    @Controller
    @Path(“hello”)
    public class HelloController {
    @Inject
    private Greeting greeting;
    @GET
    public void hello() {
    greeting.setMessage(“Hello Atlanta!”);
    }
    }
    

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41. @ivar_grimstad
    jDays 2017 - #JSR371
    Model
    <%@page contentType=“text/html"
    pageEncoding="UTF-8"%>
    
    
    
    MVC 1.0 Hello Demo
    
    
    Hello ${greeting.message}
    
    
    

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42. @ivar_grimstad
    jDays 2017 - #JSR371
    Model
    @View(“hello.jsp”)
    @Controller
    @Path(“hello”)
    public class HelloController {
    @GET
    public void hello() {
    }
    }
    

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43. @ivar_grimstad
    jDays 2017 - #JSR371
    Model
    @View(“hello.jsp”)
    @Controller
    @Path(“hello”)
    public class HelloController {
    @Inject
    private Models model;
    @GET
    public void hello() {
    model.put(“message”, “Hello Atlanta!”);
    }
    }
    

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44. @ivar_grimstad
    jDays 2017 - #JSR371
    Model
    <%@page contentType=“text/html"
    pageEncoding="UTF-8"%>
    
    
    
    MVC 1.0 Hello Demo
    
    
    Hello ${message}
    
    
    

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45. @ivar_grimstad
    jDays 2017 - #JSR371
    Validation
    

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46. @ivar_grimstad
    jDays 2017 - #JSR371
    @Controller
    @Path("form")
    public class FormController {
    @POST
    public Response formPost(@Valid @BeanParam FormDataBean f) {
    return Response.status(OK).entity(“data.jsp”).build();
    }
    }
    Validation
    ConstraintValidationException
    @Min, @NotNull
    etc.
    

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47. @ivar_grimstad
    jDays 2017 - #JSR371
    Validation
    public class FormViolationMapper implements
    ExceptionMapper
    {
    public Response toResponse(ConstraintViolationException e) {
    Set> s= e.getConstraintViolations();
    // process violations ...
    return Response.status(BAD_REQUEST)
    .entity(“error.jsp”).build();
    }
    }
    

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48. @ivar_grimstad
    jDays 2017 - #JSR371
    @Controller
    @Path("form")
    public class FormController {
    @Inject private BindingResult br;
    @POST
    public Response formPost(@Valid @BeanParam FormDataBean f) {
    if (br.isFailed()) {
    return Response.status(BAD_REQUEST)
    .entity(“error.jsp”).build();
    }
    return Response.status(OK).entity(“data.jsp”).build();
    }
    }
    Validation
    Allows for MVC Error Handling
    

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49. @ivar_grimstad
    jDays 2017 - #JSR371
    BindingResult
    

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50. @ivar_grimstad
    jDays 2017 - #JSR371
    View Engines
    

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51. @ivar_grimstad
    jDays 2017 - #JSR371
    Bring Your Own View Engine
    

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52. @ivar_grimstad
    jDays 2017 - #JSR371
    ViewEngine
    public interface ViewEngine {
    boolean supports(String view);
    void processView(ViewEngineContext context)
    throws ViewEngineException;
    }
    

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53. @ivar_grimstad
    jDays 2017 - #JSR371
    View Engine Conflicts
    @Priority(OUTRAGEOSLY_HIGH)

    @ApplicationScoped

    public class FreemarkerViewEngine extends ViewEngineBase {
    …
    }
    

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54. @ivar_grimstad
    jDays 2017 - #JSR371
    Events
    

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55. @ivar_grimstad
    jDays 2017 - #JSR371
    Controller
    Model View
    Request
    BeforeControllerEvent
    AfterControllerEvent
    BeforeProcessViewEvent
    AfterProcessViewEvent
    ControllerRedirectEvent
    

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56. @ivar_grimstad
    jDays 2017 - #JSR371
    Events Example
    @ApplicationScoped
    public class EventObserver {
    void onBeforeController(@Observes BeforeControllerEvent e) {
    println("URI: " + e.getUriInfo().getRequestURI());
    }
    void onAfterController(@Observes AfterControllerEvent e) {
    println("Controller: " +
    e.getResourceInfo().getResourceMethod());
    }
    }
    

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57. @ivar_grimstad
    jDays 2017 - #JSR371
    Security
    

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58. @ivar_grimstad
    jDays 2017 - #JSR371
    Cross Site Request Forgery
    @Controller
    @Path(“csrf”)
    public class HelloController {
    @CsrfValid
    @POST
    public Response post(@FormParam(“greeting") String greet {
    }
    }
    

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59. @ivar_grimstad
    jDays 2017 - #JSR371
    Cross Site Request Forgery
    <%@page contentType=“text/html" pageEncoding="UTF-8"%>
    
    
    
    MVC 1.0 Hello Demo
    
    
    
    
    value="${mvc.csrf.token}"/>
    
    
    
    

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60. @ivar_grimstad
    jDays 2017 - #JSR371
    Internationalization
    

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61. @ivar_grimstad
    jDays 2017 - #JSR371
    Controller
    @Controller
    @Path(“hello”)
    public class HelloController {
    @Inject
    private MvcContext mvc;
    @GET
    public String get() {
    Locale locale = mvc.getLocale();
    }
    }
    

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62. @ivar_grimstad
    jDays 2017 - #JSR371
    Scopes
    

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63. @ivar_grimstad
    jDays 2017 - #JSR371
    Model
    ReservationCtl
    Update
    confirmation
    reservation
    OK
    Browser
    POST
    

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64. @ivar_grimstad
    jDays 2017 - #JSR371
    Model
    ReservationCtl
    Access
    Update
    ConfirmationCtl
    GET
    confirmation
    reservation
    OK
    Redirect
    Browser
    POST
    

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65. @ivar_grimstad
    jDays 2017 - #JSR371
    Tired of slides?
    

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66. @ivar_grimstad
    jDays 2017 - #JSR371
    Show me the CODE !
    

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67. @ivar_grimstad
    jDays 2017 - #JSR371
    Summary
    

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68. @ivar_grimstad
    jDays 2017 - #JSR371
    Action-based MVC
    

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69. @ivar_grimstad
    jDays 2017 - #JSR371
    Existing Java EE Technologies
    

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70. @ivar_grimstad
    jDays 2017 - #JSR371
    Build MVC 1.0 on top of JAX-RS
    

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71. @ivar_grimstad
    jDays 2017 - #JSR371
    Tool Support
    

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72. @ivar_grimstad
    jDays 2017 - #JSR371
    JPA Modeler
    jpamodeler.github.io
    Gaurav Gupta
    @jGauravGupta
    

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73. @ivar_grimstad
    jDays 2017 - #JSR371
    Project Page
    https://www.mvc-spec.org
    GitHub
    https://github.com/mvc-spec
    Reference Implementation
    https://ozark.java.net
    

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74. @ivar_grimstad
    jDays 2017 - #JSR371
    Samples
    https://github.com/ivargrimstad/mvc-samples
    Blog
    http://www.agilejava.eu/
    

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75. @ivar_grimstad
    jDays 2017 - #JSR371
    cybercom.com
    

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