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Spring est mort,Vive Spring
                                by Gildas Cuisinier
                                   @gcuisinier




                                                      1
samedi 21 avril 2012
Agenda


                  •    Episode 1 : Un nouvel espoir

                  •    Episode 2 : Le JCP contre-attaque

                  •    Episode 3 : Le retour du Printemps




                                                            2
samedi 21 avril 2012
Gildas Cuisinier


                  •    @gcuisinier

                  •    Maitre Artisan Développeur @ Sfeir Benelux

                  •    Evangéliste Spring depuis plusieurs année




                                                                    3
samedi 21 avril 2012
Episode i      ( ou iv )
                          Un nouvel espoir




                                                  4
samedi 21 avril 2012
La plateforme de la mort


                  •    Plateforme standard, définie par le JCP



                  •    Gros défauts :

                       •   Applications difficilement testables

                       •   Application non portables entre les différentes implémentations


                                                                                             5
                                                                                                  
samedi 21 avril 2012
Un nouvel espoir !

                           •   Conteneur léger, OpenSource

                           •   S'intègre avec les forces en place

                           •   Simplifie les tests



                           •   Basé sur du XML


                                                                    6
samedi 21 avril 2012
<beans>

                           <bean class="spring.Jedi" id="RodJohnson">
                               <property name="nom" value="Rod Johnson" />
                               <property name="rang" value="maitre" />

                           </bean>




                       </beans>




                                                                             7
samedi 21 avril 2012
<beans>

                           <bean class="spring.Jedi" id="RodJohnson">
                               <property name="nom" value="Rod Johnson" />
                               <property name="rang" value="maitre" />
                               <property name="arme" ref="sabreVert"/>
                           </bean>

                           <bean class="spring.arme.SabreLaser" id="sabreVert">
                               <property name="couleur" value="vert"/>
                           </bean>

                       </beans>




                                                                                  8
samedi 21 avril 2012
Premières lacunes
                       <beans>

                           <bean class="spring.Jedi" id="RodJohnson"/>

                           <bean class="spring.Jedi" id="JuergenHoeller"/>

                           <bean class="spring.arme.SabreLaser" id="sabreVert" />

                           <bean class="spring.arme.SabreLaser" id="sabreBleu" />

                           ...

                       </beans>


                                                                                    9
samedi 21 avril 2012
Première évolution

                       <beans>

                           <import resource="jedis.xml" />

                           <import resource="sabres.xml" />

                           <import resource="siths.xml" />

                       </beans>




                                                              10
samedi 21 avril 2012
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                                                                                       Proxy
                                             xy"                          lter  Chain
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                                        e="fi                                            PARIS
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       2                   ert  y nam                                             E_COM
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        3                      lue>                         OWERC
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        4                        C ONVER                     CHE_A
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         5                       PATTE                                                  er
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                                           n =                     nteg   ratio
          6                       /logi                    textI
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          7                        httpS                                              lter
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           10                         /asse                  ntext
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            11                         httpS                     ty_ch                      er,
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            12                          /j_ac                   textI                      er
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                                                 essi                  Proc  essin
             13                          httpS                 ation
                                                  uth  entic
              14                         formA                                                er,
                                                                                       nFilt
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               15                         /**=                    textI
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               16                          httpS                       ionFi
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                                                    tionT
                17                          excep
                                               ue>
                18                    < /v a l
                                                                                                                             r">
                 19                  roper
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                                                                             egrat                    extIn
                  20
                                  n>                           onte   xtInt               ssio  nCont
                           </bea                       sionC                       ttpSe
                    1                          tpSes                       y...H
                  2                  id="h
                                             t                      curit
                           <bean                            egise
                   22                         ="o  rg.ac
                                      class                                                                                      Point
                                                                                                                                       ">
                   23                                                                           t"                    lter Entry
                             </bea
                                     n>                                                  yPoin                  ingFi
                    24                                                      atio  nEntr              onPr ocess
                                                                    entic                     icati
                                                      Logi  nAuth                ..Au  thent            "/>
                     25                      "form                        rity.                   login
                                     n id=                        isecu                   ue="/
                              <bea                        .aceg              mUrl"
                                                                                      val
                      26                          ="org               inFor                        e"/>
                                         class                     og                       "fals
                                                           me="l                     alue=
                      27                       erty
                                                       na                     ps" v
                                      <prop                           ceHtt
                                                        name  ="for
                       28                       erty
                                       <prop
                        29
                                          n>
                                 </bea
                        30

                                                                                                                                            11
samedi 21 avril 2012
Seconde évolution
                   1 <security:http auto-config="true">
                   2     <security:intercept-url pattern="/login*"
                   3                             access="IS_AUTHENTICATED_ANONYMOUSLY"/>
                   4     <security:intercept-url pattern="/logoutSuccess*"
                   5                             access="IS_AUTHENTICATED_ANONYMOUSLY"/>
                   6     <security:intercept-url pattern="/css/main.css"
                   7                             access="IS_AUTHENTICATED_ANONYMOUSLY"/>
                   8     <security:intercept-url pattern="/**"
                   9                             access="ROLE_JEDI"/>
                  10
                  11     <security:form-login login-page="/login.html"
                  12                          login-processing-url="/loginProcess"
                  13                          default-target-url="/index.jsp"
                  14     <security:logout logout-url="/logout"
                  15                      logout-success-url="/logoutSuccess.html"/>
                  16 </security:http>




                                                                                           12
samedi 21 avril 2012
Seconde évolution, bis
                        1 @Component
                        2 public class Jedi {
                        3
                        4     private Arme arme;
                        5
                        6     @Autowired
                        7     public void setArme(Arme arme) {
                        8         this.arme = arme;
                        9     }
                       10
                       11 }


                       1 <context:component-scan base-package="spring" />


                                                                            13
samedi 21 avril 2012
Episode ii        ( ou v )
                         Le JCP contre-attaque




                                                    14
samedi 21 avril 2012
JEE 6 à nouveau sexy
               •       Simplicité

               •       Testabilité

               •       Légèreté



                       MAIS

               •       Nécessite une migration

                                                            15
samedi 21 avril 2012
Spring 3.0
                       1 @Configuration
                       2 public class ApplicationConfig {
                       3
                       4     @Bean
                       5     public MyService myService() {
                       6         return new MyService();
                       7     }
                       8
                       9 }




                                                              16
samedi 21 avril 2012
Spring 3.0
                                      1 @Configuration   // <beans>
                                      2 public class ApplicationConfig {
                                      3
                                      4     @Bean        //<bean id="myService>
                                      5     public MyService myService() {
                                      6         return new MyService();
                                      7     }
                                      8
                                      9 }


                       1 ApplicationContext factory =
                       2         new AnnotationConfigApplicationContext(ApplicationConfig.class)



                                                                                                   17
samedi 21 avril 2012
JEE 6, la mort de Spring ?




                               cyg.be/SpringJEE
                                                    18
samedi 21 avril 2012
JEE en 2012
                          None     J2EE 14         JEE 5   JEE 6




                                         56%




                                                  27%
                                   13%
                                             4%



       cyg.be/SpringJEE
                                                                   19
samedi 21 avril 2012
Adoption JEE 6
                          1 an   6 mois         Actuellement           Ne sais pas   Jamais




                                                12%       11%


                                                                 13%




                                          42%
                                                                21%




       cyg.be/SpringJEE
                                                                                              20
samedi 21 avril 2012
Conversion des troupes actuelles
                            En partie   Ne se prononce pas   Non, nous gardons Spring   Oui




                                                       8%
                                                             19%




                                                                   22%
                                              51%




       cyg.be/SpringJEE
                                                                                              21
samedi 21 avril 2012
JEE - Nouvelle troupes
                           En partie   Ne se prononce pas         Non   Oui




                                             16%
                                                            26%




                                       37%
                                                            21%




       cyg.be/SpringJEE
                                                                              22
samedi 21 avril 2012
BILAN

                       •   Spécification fin 2009

                       •   JEE 6 commence à percer en production

                           •   25-30% actuellement

                           •   > 50% d’ici 1 an



                                                                   23
samedi 21 avril 2012
Spring en 2012
                          Aucun   Spring 2.0         Spring 2.5         Spring 3.0   Spring 3.1




                                                         50%




                                         6%
                                          2%


                                                                  23%
                                               19%




       cyg.be/SpringJEE
                                                                                                  24
samedi 21 avril 2012
Spring 3.1
                          1 an   6 mois         Actuellement          Plus d’un an   Jamais




                                                       28%



                                                                     9%


                                          29%


                                                               26%
                                                  8%



       cyg.be/SpringJEE
                                                                                              25
samedi 21 avril 2012
Reproches
                            Diffile à mettre en place   Invasif   Trop de XML   Propriétaire
                            JEE6 fait la même chose    Autres    Rien

                       40


                       30


                       20


                       10


                        0




                                                                                              26
samedi 21 avril 2012
•   Spring 3.0 - Sorti en même temps que JEE 6

                           •   Bien présent en production

                       •   Spring 3.1 - Sorti fin 2011

                           •   ~25% actuellement

                           •   > 50% d’ici 1 an



                                                                        27
samedi 21 avril 2012
Episode iii       ( ou vi )
                         Le retour du Printemps




                                                     28
samedi 21 avril 2012
Amélioration
                        NoXML


                                      29
samedi 21 avril 2012
Spring 3.0
          • JavaConfig permet de remplacer la
                configuration XML                      1 @Configuration   // <beans>
                                                      2 public class ApplicationConfig {
                                                      3
          • Ne supporte pas toute les                 4     @Bean        //<bean id="myService>
                possibilités de la configuration XML   5
                                                      6
                                                            public MyService myService() {
                                                                return new MyService();
                                                      7     }
                                                      8
                                                      9 }

          • Spring 3.1 vient combler ces
                lacunes

                                                                                                  30
samedi 21 avril 2012
@ComponentScan

                   1 <context:component-scan
                   base-package="spring"/>



                   1 @Configuration
                   2 @ComponentScan("spring")
                   3 public class ApplicationConfig



                                                      31
samedi 21 avril 2012
@EnableScheduling
                       1 public class MaTache {
                       2
                       3    @Scheduled(fixedRate = 1000)
                       4     public void execute() {
                       5         System.out.println("May the Spring be
                                                       with you");
                       6     }
                       7 }




                                                                         32
samedi 21 avril 2012
@EnableScheduling

                       1 <task:annotation-driven />



                       1   @Configuration
                       2   @EnableScheduling
                       3   public class ApplicationConfig {
                       4   }




                                                              33
samedi 21 avril 2012
@EnableScheduling

                       1   @Target(ElementType.TYPE)
                       2   @Retention(RetentionPolicy.RUNTIME)
                       3   @Import(SchedulingConfiguration.class)
                       4   @Documented
                       5   public @interface EnableScheduling {
                       6
                       7   }




                                                                    34
samedi 21 avril 2012
@EnableScheduling
        1 @Configuration
        2 public class SchedulingConfiguration {
        3
        4     @Bean(name=AnnotationConfigUtils.SCHEDULED_ANNOTATION_PROCESSOR_BEAN_NAME)
        5     @Role(BeanDefinition.ROLE_INFRASTRUCTURE)
        6     public ScheduledAnnotationBeanPostProcessor scheduledAnnotationProcessor() {
        7         return new ScheduledAnnotationBeanPostProcessor();
        8     }
        9
       10 }




                                                                                             35
samedi 21 avril 2012
@EnableWebMvc
                       1 <mvc:annotation-driven />




                       1   @Configuration
                       2   @EnableWebMvc
                       3   public class WebConfig {
                       4   }



                                                      36
samedi 21 avril 2012
@EnableWebMvc

                       1 <mvc:annotation-driven/>
                       2 <mvc:interceptors>
                       3     <bean class="osf..LocaleChangeInterceptor"/>
                       4 </mvc:interceptors>




                                                                            37
samedi 21 avril 2012
@EnableWebMvc +
                                WebMvcConfigurerAdapter
                        1   @Configuration
                        2   @EnableWebMvc
                        3   public class WebConfig
                        4       extends WebMvcConfigurerAdapter{
                        5
                        6        @Override
                        7        public void addInterceptors(InterceptorRegistry registry) {
                        8            registry.addInterceptor(new LocaleChangeInterceptor());
                        9        }
                       10   }




                                                                                               38
samedi 21 avril 2012
@EnableWebMvc
                        Ajout Intercepteur

                        Configuration de ViewController

                        Ajout de ResourceHandler



                        Ne permet pas une configuration fine

                       ➡ @EnableWebMvc et étendre WebMvcConfigurationSupport

                                                                              39
samedi 21 avril 2012
@Enable*

                  <context:spring-configured/>           @EnableSpringConfigured


                  <context:load-time-weaver/>            @EnableLoadTimeWeaving


                  <tx:annotation-driven/>                @EnableTransactionManagement


                  <task:annotation-driven/>              @EnableAsync


                  <aop:aspectj-autoproxy/>               @EnableAspectJAutoProxy



                                                                                        40
samedi 21 avril 2012
Testing 3.0
                        1   @RunWith(SpringJUnit4ClassRunner.class)
                        2   @ContextConfiguration("test-config.xml")
                        3   public class MyTest {
                        4       @Autowired
                        5       MyService service;
                        6
                        7       @Test
                        8       public void myTest(){
                        9       }
                       10   }




                                                                       41
samedi 21 avril 2012
Testing 3.1
                        1   @RunWith(SpringJUnit4ClassRunner.class)
                        2   @ContextConfiguration(classes = TestConfig.class)
                        3   public class MyTest {
                        4       @Autowired
                        5       MyService service;
                        6
                        7       @Test
                        8       public void myTest(){
                        9       }
                       10   }




                                                                                42
samedi 21 avril 2012
WebApplicationInitializer
               1 public class WebInitializer implements WebApplicationInitializer {
               2
               3     @Override
               4     public void onStartup(ServletContext servletContext) throws ServletException {
               5
               6         AnnotationConfigWebApplicationContext context =
                               new AnnotationConfigWebApplicationContext();
               7         context.register(WebMvcConfig.class);
               8
               9         ServletRegistration.Dynamic servletConfig    =
                               servletContext.addServlet("dispatcher", new DispatcherServlet(context));
              10         servletConfig.setLoadOnStartup(1);
              11         servletConfig.addMapping("*.do");
              12
              13     }
              14 }



                                                                                                          43
samedi 21 avril 2012
Nouveau pouvoir :
                       Cacher des resources


                                              44
samedi 21 avril 2012
1 @Service
                        2 public class AllianceRebelle {
                        3
                        4     @Cacheable(value = "jedi")
                        5     public Jedi appellerJedi(String nomJedi) {
                        6          // attendre accord du conseil
                        7          // attendre disponibilité du Jedi
                        8          return chevaliers.getByName(nomJedi);
                        9     }
                       10
                       11 }




                                                                           45
samedi 21 avril 2012
1 @Service
                        2 public class AllianceRebelle {
                        3
                        4     @Cacheable(value = "jedi")
                        5     public Jedi appellerJedi(String nomJedi) {
                        6          // attendre accord du conseil
                        7          // attendre disponibilité du Jedi
                        8          return chevaliers.getByName(nomJedi);
                        9     }
                       10
                       11     @CacheEvict(value = "jedi")
                       12     public void libererJedi(String nomJedi){
                       13
                       14     }
                       15
                       16 }


                                                                           46
samedi 21 avril 2012
@EnableCaching
                        1   @Configuration
                        2   @EnableCaching
                        3   public class ApplicationConfig {
                        4
                        5       @Bean
                        6       CacheManager cacheManager(){
                        7           return
                        8              new ConcurrentMapCacheManager();
                        9       }
                       10   }



                                                                          47
samedi 21 avril 2012
@EnableCaching
                       1 <caching:annotation-driven />
                       2
                       3     <bean class="org.springframework.cache
                           .concurrent.ConcurrentMapCacheManager"/>
                       4




                                                                      48
samedi 21 avril 2012
Abstraction de Cache

                  •     Out of the Box

                       ✓ ConcurrentHashMap
                       ✓ EhCache
                  •     GemFire



                                                          49
samedi 21 avril 2012
Nouveau pouvoir

                       Adaptation au terrain


                                               50
samedi 21 avril 2012
JNDI


                  •    Séparation entre l’utilisation d’une ressource et sa définition

                  •    Inadapté pour une configuration différente




                                                                                        51
samedi 21 avril 2012
Import + Propriété Système
                                          1 <import resource="config-${env}.xml"/>



                                          1 System.setProperty("env", "TEST");



              1 <jdbc:embedded-database                     1 <jee:jndi-lookup jndi-name="jdbc/datasource"/>
              2          id="dataSource">                   2
              3        <jdbc:script
              4              location="schema.sql"/>
              5            <jdbc:script
              6              location="test-data.sql"/>
              7 </jdbc:embedded-database>


                                                                                                               52
samedi 21 avril 2012
@Profile
            1 @Configuration
            2
            3 public class ApplicationConfig {
            4
            5     @Bean
            6     DataSource dataSource(){
            7         JndiObjectFactoryBean result = new
                          JndiObjectFactoryBean();
            8         result.setJndiName("jdbc/dataSource");
            9         return (DataSource) result.getObject();
           10     }
           11 }

                                                                53
samedi 21 avril 2012
@Profile
            1 @Configuration
            2 @Import(ApplicationDevConfig.class)
            3 public class ApplicationConfig {
            4
            5     @Bean
            6     DataSource dataSource(){
            7         JndiObjectFactoryBean result = new
                          JndiObjectFactoryBean();
            8         result.setJndiName("jdbc/dataSource");
            9         return (DataSource) result.getObject();
           10     }
           11 }

                                                                54
samedi 21 avril 2012
@Profile
            1 @Configuration
            2 @Profile("dev")
            3 public class ApplicationDevConfig {
            4
            5     @Bean
            6     DataSource dataSource() {
            7         SingleConnectionDataSource connection = new
                              SingleConnectionDataSource(...);
            8         return connection;
            9     }
           10 }


                                                                    55
samedi 21 avril 2012
<Profile />

           1 <beans profile="dev">
           2     <jdbc:embedded-database id="dataSource">
           3          <jdbc:script location="schema.sql"/>
           4          <jdbc:script location="test-data.sql"/>
           5     </jdbc:embedded-database>
           6 </beans>




                                                                56
samedi 21 avril 2012
Activation

            1 <webapp>
            2     <context-param>
            3          <param-name>spring.profiles.active</param-name>
            4          <param-value>dev</param-value>
            5     </context-param>
            6 </webapp>




                                                                         57
samedi 21 avril 2012
Activation

            1 <servlet>
            2     <servlet-name>dispatcher</servlet-name>
            3     <servlet-class>osf.web.servlet.DispatcherServlet</servlet-class>
            4     <init-param>
            5         <param-name>spring.profiles.active</param-name>
            6         <param-value>dev</param-value>
            7     </init-param>
            8 </servlet>




                                                                                     58
samedi 21 avril 2012
Spring 3.1, c’est aussi

                  •    Support Hibernate 4

                  •    Namespace c:

                  •    JPA sans Persistence.xml

                  •    Amélioration de REST dans SpringMVC

                  •    FlashMap dans Spring MVC


                                                             59
samedi 21 avril 2012
L’Univers de Spring

                       SpringData       Batch                  SpringMobile




                                     Integration   Framework



           SpringAndroid                                       SpringSocial
                                      Security        Flex

                                                                              60
samedi 21 avril 2012
Conclusion

                  •     Spring est largement répandu

                  •     Spring continue à évoluer

                       ✓ NoXML

                       ✓ Ouvert au Cloud

                  •     Spring est un écosystème


                                                           61
samedi 21 avril 2012
cyg.be/cbeamsSpring31      cyg.be/costinlDevoxx11




                       cyg.be/SpringSourceBlog   cyg.be/MattRaibleSpring31

                                                                             62
samedi 21 avril 2012
Sources des images
            http://www.thegeekshowpodcast.com

                                                http://www.thinkgeek.com

                        http://gadgetsin.com



                                                    raven - Fotolia.com


                                                                           63
samedi 21 avril 2012

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Spring est mort, Vive Spring à Devoxx France

  • 1. Spring est mort,Vive Spring by Gildas Cuisinier @gcuisinier 1 samedi 21 avril 2012
  • 2. Agenda • Episode 1 : Un nouvel espoir • Episode 2 : Le JCP contre-attaque • Episode 3 : Le retour du Printemps 2 samedi 21 avril 2012
  • 3. Gildas Cuisinier • @gcuisinier • Maitre Artisan Développeur @ Sfeir Benelux • Evangéliste Spring depuis plusieurs année 3 samedi 21 avril 2012
  • 4. Episode i ( ou iv ) Un nouvel espoir 4 samedi 21 avril 2012
  • 5. La plateforme de la mort • Plateforme standard, définie par le JCP • Gros défauts : • Applications difficilement testables • Application non portables entre les différentes implémentations 5   samedi 21 avril 2012
  • 6. Un nouvel espoir ! • Conteneur léger, OpenSource • S'intègre avec les forces en place • Simplifie les tests • Basé sur du XML 6 samedi 21 avril 2012
  • 7. <beans> <bean class="spring.Jedi" id="RodJohnson"> <property name="nom" value="Rod Johnson" /> <property name="rang" value="maitre" /> </bean> </beans> 7 samedi 21 avril 2012
  • 8. <beans> <bean class="spring.Jedi" id="RodJohnson"> <property name="nom" value="Rod Johnson" /> <property name="rang" value="maitre" /> <property name="arme" ref="sabreVert"/> </bean> <bean class="spring.arme.SabreLaser" id="sabreVert"> <property name="couleur" value="vert"/> </bean> </beans> 8 samedi 21 avril 2012
  • 9. Premières lacunes <beans> <bean class="spring.Jedi" id="RodJohnson"/> <bean class="spring.Jedi" id="JuergenHoeller"/> <bean class="spring.arme.SabreLaser" id="sabreVert" /> <bean class="spring.arme.SabreLaser" id="sabreBleu" /> ... </beans> 9 samedi 21 avril 2012
  • 10. Première évolution <beans> <import resource="jedis.xml" /> <import resource="sabres.xml" /> <import resource="siths.xml" /> </beans> 10 samedi 21 avril 2012
  • 11. "> Proxy xy" lter Chain inPro il.Fi Sourc e "> filt erCha curi ty.ut ition an id =" g.ace gise Defin 1 <be s="or ation clas lter Invoc e="fi PARIS ON 2 ert y nam E_COM <prop ASE_B EFOR 3 lue> OWERC <v a _TO_L T_URL NT 4 C ONVER CHE_A P E_APA RN_TY 5 PATTE er nFilt n = nteg ratio 6 /logi textI essi onCon 7 httpS lter rm= ionFi in.fo egrat 8 /log xtInt Conte e ssion 9 httpS ter = onFil ts/** Inte grati 10 /asse ntext ess ionCo eck= 11 httpS ty_ch er, ecuri nFilt eg i_s nteg ratio 12 /j_ac textI er onCon gFilt essi Proc essin 13 httpS ation uth entic 14 formA er, nFilt nteg ratio 15 /**= textI essi onCon lter 16 httpS ionFi ra nslat tionT 17 excep ue> 18 < /v a l r"> 19 roper ty> lter" Filte </p ionFi tegr ation egrat extIn 20 n> onte xtInt ssio nCont </bea sionC ttpSe 1 tpSes y...H 2 id="h t curit <bean egise 22 ="o rg.ac class Point "> 23 t" lter Entry </bea n> yPoin ingFi 24 atio nEntr onPr ocess entic icati Logi nAuth ..Au thent "/> 25 "form rity. login n id= isecu ue="/ <bea .aceg mUrl" val 26 ="org inFor e"/> class og "fals me="l alue= 27 erty na ps" v <prop ceHtt name ="for 28 erty <prop 29 n> </bea 30 11 samedi 21 avril 2012
  • 12. Seconde évolution 1 <security:http auto-config="true"> 2 <security:intercept-url pattern="/login*" 3 access="IS_AUTHENTICATED_ANONYMOUSLY"/> 4 <security:intercept-url pattern="/logoutSuccess*" 5 access="IS_AUTHENTICATED_ANONYMOUSLY"/> 6 <security:intercept-url pattern="/css/main.css" 7 access="IS_AUTHENTICATED_ANONYMOUSLY"/> 8 <security:intercept-url pattern="/**" 9 access="ROLE_JEDI"/> 10 11 <security:form-login login-page="/login.html" 12 login-processing-url="/loginProcess" 13 default-target-url="/index.jsp" 14 <security:logout logout-url="/logout" 15 logout-success-url="/logoutSuccess.html"/> 16 </security:http> 12 samedi 21 avril 2012
  • 13. Seconde évolution, bis 1 @Component 2 public class Jedi { 3 4 private Arme arme; 5 6 @Autowired 7 public void setArme(Arme arme) { 8 this.arme = arme; 9 } 10 11 } 1 <context:component-scan base-package="spring" /> 13 samedi 21 avril 2012
  • 14. Episode ii ( ou v ) Le JCP contre-attaque 14 samedi 21 avril 2012
  • 15. JEE 6 à nouveau sexy • Simplicité • Testabilité • Légèreté MAIS • Nécessite une migration 15 samedi 21 avril 2012
  • 16. Spring 3.0 1 @Configuration 2 public class ApplicationConfig { 3 4 @Bean 5 public MyService myService() { 6 return new MyService(); 7 } 8 9 } 16 samedi 21 avril 2012
  • 17. Spring 3.0 1 @Configuration // <beans> 2 public class ApplicationConfig { 3 4 @Bean //<bean id="myService> 5 public MyService myService() { 6 return new MyService(); 7 } 8 9 } 1 ApplicationContext factory = 2 new AnnotationConfigApplicationContext(ApplicationConfig.class) 17 samedi 21 avril 2012
  • 18. JEE 6, la mort de Spring ? cyg.be/SpringJEE 18 samedi 21 avril 2012
  • 19. JEE en 2012 None J2EE 14 JEE 5 JEE 6 56% 27% 13% 4% cyg.be/SpringJEE 19 samedi 21 avril 2012
  • 20. Adoption JEE 6 1 an 6 mois Actuellement Ne sais pas Jamais 12% 11% 13% 42% 21% cyg.be/SpringJEE 20 samedi 21 avril 2012
  • 21. Conversion des troupes actuelles En partie Ne se prononce pas Non, nous gardons Spring Oui 8% 19% 22% 51% cyg.be/SpringJEE 21 samedi 21 avril 2012
  • 22. JEE - Nouvelle troupes En partie Ne se prononce pas Non Oui 16% 26% 37% 21% cyg.be/SpringJEE 22 samedi 21 avril 2012
  • 23. BILAN • Spécification fin 2009 • JEE 6 commence à percer en production • 25-30% actuellement • > 50% d’ici 1 an 23 samedi 21 avril 2012
  • 24. Spring en 2012 Aucun Spring 2.0 Spring 2.5 Spring 3.0 Spring 3.1 50% 6% 2% 23% 19% cyg.be/SpringJEE 24 samedi 21 avril 2012
  • 25. Spring 3.1 1 an 6 mois Actuellement Plus d’un an Jamais 28% 9% 29% 26% 8% cyg.be/SpringJEE 25 samedi 21 avril 2012
  • 26. Reproches Diffile à mettre en place Invasif Trop de XML Propriétaire JEE6 fait la même chose Autres Rien 40 30 20 10 0 26 samedi 21 avril 2012
  • 27. Spring 3.0 - Sorti en même temps que JEE 6 • Bien présent en production • Spring 3.1 - Sorti fin 2011 • ~25% actuellement • > 50% d’ici 1 an 27 samedi 21 avril 2012
  • 28. Episode iii ( ou vi ) Le retour du Printemps 28 samedi 21 avril 2012
  • 29. Amélioration NoXML 29 samedi 21 avril 2012
  • 30. Spring 3.0 • JavaConfig permet de remplacer la configuration XML 1 @Configuration // <beans> 2 public class ApplicationConfig { 3 • Ne supporte pas toute les 4 @Bean //<bean id="myService> possibilités de la configuration XML 5 6 public MyService myService() { return new MyService(); 7 } 8 9 } • Spring 3.1 vient combler ces lacunes 30 samedi 21 avril 2012
  • 31. @ComponentScan 1 <context:component-scan base-package="spring"/> 1 @Configuration 2 @ComponentScan("spring") 3 public class ApplicationConfig 31 samedi 21 avril 2012
  • 32. @EnableScheduling 1 public class MaTache { 2 3 @Scheduled(fixedRate = 1000) 4 public void execute() { 5 System.out.println("May the Spring be with you"); 6 } 7 } 32 samedi 21 avril 2012
  • 33. @EnableScheduling 1 <task:annotation-driven /> 1 @Configuration 2 @EnableScheduling 3 public class ApplicationConfig { 4 } 33 samedi 21 avril 2012
  • 34. @EnableScheduling 1 @Target(ElementType.TYPE) 2 @Retention(RetentionPolicy.RUNTIME) 3 @Import(SchedulingConfiguration.class) 4 @Documented 5 public @interface EnableScheduling { 6 7 } 34 samedi 21 avril 2012
  • 35. @EnableScheduling 1 @Configuration 2 public class SchedulingConfiguration { 3 4 @Bean(name=AnnotationConfigUtils.SCHEDULED_ANNOTATION_PROCESSOR_BEAN_NAME) 5 @Role(BeanDefinition.ROLE_INFRASTRUCTURE) 6 public ScheduledAnnotationBeanPostProcessor scheduledAnnotationProcessor() { 7 return new ScheduledAnnotationBeanPostProcessor(); 8 } 9 10 } 35 samedi 21 avril 2012
  • 36. @EnableWebMvc 1 <mvc:annotation-driven /> 1 @Configuration 2 @EnableWebMvc 3 public class WebConfig { 4 } 36 samedi 21 avril 2012
  • 37. @EnableWebMvc 1 <mvc:annotation-driven/> 2 <mvc:interceptors> 3 <bean class="osf..LocaleChangeInterceptor"/> 4 </mvc:interceptors> 37 samedi 21 avril 2012
  • 38. @EnableWebMvc + WebMvcConfigurerAdapter 1 @Configuration 2 @EnableWebMvc 3 public class WebConfig 4 extends WebMvcConfigurerAdapter{ 5 6 @Override 7 public void addInterceptors(InterceptorRegistry registry) { 8 registry.addInterceptor(new LocaleChangeInterceptor()); 9 } 10 } 38 samedi 21 avril 2012
  • 39. @EnableWebMvc Ajout Intercepteur Configuration de ViewController Ajout de ResourceHandler Ne permet pas une configuration fine ➡ @EnableWebMvc et étendre WebMvcConfigurationSupport 39 samedi 21 avril 2012
  • 40. @Enable* <context:spring-configured/> @EnableSpringConfigured <context:load-time-weaver/> @EnableLoadTimeWeaving <tx:annotation-driven/> @EnableTransactionManagement <task:annotation-driven/> @EnableAsync <aop:aspectj-autoproxy/> @EnableAspectJAutoProxy 40 samedi 21 avril 2012
  • 41. Testing 3.0 1 @RunWith(SpringJUnit4ClassRunner.class) 2 @ContextConfiguration("test-config.xml") 3 public class MyTest { 4 @Autowired 5 MyService service; 6 7 @Test 8 public void myTest(){ 9 } 10 } 41 samedi 21 avril 2012
  • 42. Testing 3.1 1 @RunWith(SpringJUnit4ClassRunner.class) 2 @ContextConfiguration(classes = TestConfig.class) 3 public class MyTest { 4 @Autowired 5 MyService service; 6 7 @Test 8 public void myTest(){ 9 } 10 } 42 samedi 21 avril 2012
  • 43. WebApplicationInitializer 1 public class WebInitializer implements WebApplicationInitializer { 2 3 @Override 4 public void onStartup(ServletContext servletContext) throws ServletException { 5 6 AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext(); 7 context.register(WebMvcConfig.class); 8 9 ServletRegistration.Dynamic servletConfig = servletContext.addServlet("dispatcher", new DispatcherServlet(context)); 10 servletConfig.setLoadOnStartup(1); 11 servletConfig.addMapping("*.do"); 12 13 } 14 } 43 samedi 21 avril 2012
  • 44. Nouveau pouvoir : Cacher des resources 44 samedi 21 avril 2012
  • 45. 1 @Service 2 public class AllianceRebelle { 3 4 @Cacheable(value = "jedi") 5 public Jedi appellerJedi(String nomJedi) { 6 // attendre accord du conseil 7 // attendre disponibilité du Jedi 8 return chevaliers.getByName(nomJedi); 9 } 10 11 } 45 samedi 21 avril 2012
  • 46. 1 @Service 2 public class AllianceRebelle { 3 4 @Cacheable(value = "jedi") 5 public Jedi appellerJedi(String nomJedi) { 6 // attendre accord du conseil 7 // attendre disponibilité du Jedi 8 return chevaliers.getByName(nomJedi); 9 } 10 11 @CacheEvict(value = "jedi") 12 public void libererJedi(String nomJedi){ 13 14 } 15 16 } 46 samedi 21 avril 2012
  • 47. @EnableCaching 1 @Configuration 2 @EnableCaching 3 public class ApplicationConfig { 4 5 @Bean 6 CacheManager cacheManager(){ 7 return 8 new ConcurrentMapCacheManager(); 9 } 10 } 47 samedi 21 avril 2012
  • 48. @EnableCaching 1 <caching:annotation-driven /> 2 3 <bean class="org.springframework.cache .concurrent.ConcurrentMapCacheManager"/> 4 48 samedi 21 avril 2012
  • 49. Abstraction de Cache • Out of the Box ✓ ConcurrentHashMap ✓ EhCache • GemFire 49 samedi 21 avril 2012
  • 50. Nouveau pouvoir Adaptation au terrain 50 samedi 21 avril 2012
  • 51. JNDI • Séparation entre l’utilisation d’une ressource et sa définition • Inadapté pour une configuration différente 51 samedi 21 avril 2012
  • 52. Import + Propriété Système 1 <import resource="config-${env}.xml"/> 1 System.setProperty("env", "TEST"); 1 <jdbc:embedded-database 1 <jee:jndi-lookup jndi-name="jdbc/datasource"/> 2 id="dataSource"> 2 3 <jdbc:script 4 location="schema.sql"/> 5 <jdbc:script 6 location="test-data.sql"/> 7 </jdbc:embedded-database> 52 samedi 21 avril 2012
  • 53. @Profile 1 @Configuration 2 3 public class ApplicationConfig { 4 5 @Bean 6 DataSource dataSource(){ 7 JndiObjectFactoryBean result = new JndiObjectFactoryBean(); 8 result.setJndiName("jdbc/dataSource"); 9 return (DataSource) result.getObject(); 10 } 11 } 53 samedi 21 avril 2012
  • 54. @Profile 1 @Configuration 2 @Import(ApplicationDevConfig.class) 3 public class ApplicationConfig { 4 5 @Bean 6 DataSource dataSource(){ 7 JndiObjectFactoryBean result = new JndiObjectFactoryBean(); 8 result.setJndiName("jdbc/dataSource"); 9 return (DataSource) result.getObject(); 10 } 11 } 54 samedi 21 avril 2012
  • 55. @Profile 1 @Configuration 2 @Profile("dev") 3 public class ApplicationDevConfig { 4 5 @Bean 6 DataSource dataSource() { 7 SingleConnectionDataSource connection = new SingleConnectionDataSource(...); 8 return connection; 9 } 10 } 55 samedi 21 avril 2012
  • 56. <Profile /> 1 <beans profile="dev"> 2 <jdbc:embedded-database id="dataSource"> 3 <jdbc:script location="schema.sql"/> 4 <jdbc:script location="test-data.sql"/> 5 </jdbc:embedded-database> 6 </beans> 56 samedi 21 avril 2012
  • 57. Activation 1 <webapp> 2 <context-param> 3 <param-name>spring.profiles.active</param-name> 4 <param-value>dev</param-value> 5 </context-param> 6 </webapp> 57 samedi 21 avril 2012
  • 58. Activation 1 <servlet> 2 <servlet-name>dispatcher</servlet-name> 3 <servlet-class>osf.web.servlet.DispatcherServlet</servlet-class> 4 <init-param> 5 <param-name>spring.profiles.active</param-name> 6 <param-value>dev</param-value> 7 </init-param> 8 </servlet> 58 samedi 21 avril 2012
  • 59. Spring 3.1, c’est aussi • Support Hibernate 4 • Namespace c: • JPA sans Persistence.xml • Amélioration de REST dans SpringMVC • FlashMap dans Spring MVC 59 samedi 21 avril 2012
  • 60. L’Univers de Spring SpringData Batch SpringMobile Integration Framework SpringAndroid SpringSocial Security Flex 60 samedi 21 avril 2012
  • 61. Conclusion • Spring est largement répandu • Spring continue à évoluer ✓ NoXML ✓ Ouvert au Cloud • Spring est un écosystème 61 samedi 21 avril 2012
  • 62. cyg.be/cbeamsSpring31 cyg.be/costinlDevoxx11 cyg.be/SpringSourceBlog cyg.be/MattRaibleSpring31 62 samedi 21 avril 2012
  • 63. Sources des images http://www.thegeekshowpodcast.com http://www.thinkgeek.com http://gadgetsin.com raven - Fotolia.com 63 samedi 21 avril 2012