Validar os parametros dos metodos nos controllers Vraptor

Diabo Loiro

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Mar 26, 2014, 1:02:01 AM3/26/14

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Ola gostaria de interceptar os parametros passados nos controllers do vraptor anotados com @validate por exemplo e no "aspecto/interceptador" eu faria algo tipo

validator.validate(parametro) \redirecionar erros

vi nesse link um proxy dinamico na hora de fazer a injeção http://vraptor.caelum.com.br/pt/cookbook/poupando-recursos-lazy-dependency-injection/ porém não me atende.

1 - gostaria de saber tem algo que eu possa usar built-in do vraptor para fazer isso ou se tenho que colocar um aspectJ ou outra implementecão de aspectos?

2 - gostaria de saber se eu usar o vraptor4 com cdi teria algum suporte para relizar isso ou teria que colocar alguma implementaçao de aspecto no projeto mesmo, vi esse link e nao achei nada sobre isso na documentação ou de como fazer no vraptor 3 https://groups.google.com/forum/#!msg/caelum-vraptor/sAUaoGBieuY/TifEYe0bt68J

Obrigado

Rafael Ponte

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Mar 26, 2014, 5:30:39 AM3/26/14

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Oi Diabo Loiro,

No VRaotor4 isso já é possível com Bean Validations. Só que no caso a anotação é @Valid.

Dá uma olhada no capítulo sobre validações da documentação.

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Otávio Garcia

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Mar 26, 2014, 7:58:57 AM3/26/14

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Também é possível no vraptor 3 com o jar do hibernate-validator 5.

Sent from my Motorola Atrix™

Bruno Daniel Marinho

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Mar 26, 2014, 1:00:39 PM3/26/14

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vou testar pelo que tinha visto no livro do vraptor e na documentaçao para validar vc tem chamar explicitamente validator.validate(parametro) e nao gostaria de ter esse codigo repetitivo em meus controllers, queria quer o framework chamasse automatico ou em um "aspecto", mais sendo mais especifico na pergunta como eu posso fazer um proxy dinamico do controller de todos os metodos do controller?

talvez sobrescrevendo algum componente do vraptor que trata os parametros da request, não sei.

mais vou testar aqui se com @valid o vraptor ja valida a request.

obrigado.

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Diabo Loiro

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Mar 26, 2014, 1:40:20 PM3/26/14

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usando o vraptor 3 eu fiz

public void save(@Valid Note note) {

}

a classe tem algo assim

public class Note extends AbstractEntity {

@NotBlank

private String name;}

ai fiz um interceptor para o redirect

@Intercepts

public class TesteInter implements Interceptor {

private Validator validator;

public TesteInter(Validator validator) {

this.validator=validator;

}

@Override

public boolean accepts(ResourceMethod arg0) {

return true;

}

@Override

public void intercept(InterceptorStack arg0, ResourceMethod arg1,

Object arg2) throws InterceptionException {

validator.onErrorRedirectTo(NoteController.class).create();

arg0.next(arg1, arg2);

}

ao passar os campos completos funciona, agora ao deixa o campo em branco em vez dele redirecionar para o controler que eu mandei ele ignora e joga um 500 na tela.

não entendi por que se estou chamando o validator antes de proceguir no metodo.

quem joga a exception é esse cara at br.com.caelum.vraptor.interceptor.ExecuteMethodInterceptor.intercept(ExecuteMethodInterceptor.java:96)

sera que teria como eu sobrescrever o comportamento dele algo do estilo?

Em quarta-feira, 26 de março de 2014 14h00min39s UTC-3, Diabo Loiro escreveu:

vou testar pelo que tinha visto no livro do vraptor e na documentaçao para validar vc tem chamar explicitamente validator.validate(parametro) e nao gostaria de ter esse codigo repetitivo em meus controllers, queria quer o framework chamasse automatico ou em um "aspecto", mais sendo mais especifico na pergunta como eu posso fazer um proxy dinamico do controller de todos os metodos do controller?

talvez sobrescrevendo algum componente do vraptor que trata os parametros da request, não sei.

mais vou testar aqui se com @valid o vraptor ja valida a request.

obrigado.

Em 26 de março de 2014 08:58, Otávio Garcia <ota...@otavio.com.br> escreveu:

Também é possível no vraptor 3 com o jar do hibernate-validator 5.

Sent from my Motorola Atrix™

On Mar 26, 2014 6:30 AM, "Rafael Ponte" <rpo...@gmail.com> wrote:

Oi Diabo Loiro,

No VRaotor4 isso já é possível com Bean Validations. Só que no caso a anotação é @Valid.

Dá uma olhada no capítulo sobre validações da documentação.

On Wednesday, March 26, 2014, Diabo Loiro <bdms...@gmail.com> wrote:

Ola gostaria de interceptar os parametros passados nos controllers do vraptor anotados com @validate por exemplo e no "aspecto/interceptador" eu faria algo tipo

validator.validate(parametro) \redirecionar erros

vi nesse link um proxy dinamico na hora de fazer a injeção http://vraptor.caelum.com.br/pt/cookbook/poupando-recursos-lazy-dependency-injection/ porém não me atende.

1 - gostaria de saber tem algo que eu possa usar built-in do vraptor para fazer isso ou se tenho que colocar um aspectJ ou outra implementecão de aspectos?

2 - gostaria de saber se eu usar o vraptor4 com cdi teria algum suporte para relizar isso ou teria que colocar alguma implementaçao de aspecto no projeto mesmo, vi esse link e nao achei nada sobre isso na documentação ou de como fazer no vraptor 3 https://groups.google.com/forum/#!msg/caelum-vraptor/sAUaoGBieuY/TifEYe0bt68J

Obrigado

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Lucas Cavalcanti

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Mar 26, 2014, 3:31:06 PM3/26/14

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qual exception?

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Bruno Daniel Marinho

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Mar 26, 2014, 3:37:43 PM3/26/14

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[ERROR] Unhandled exception occurred whilst decorating page

br.com.caelum.vraptor.InterceptionException: exception raised, check root cause for details: javax.validation.ConstraintViolationException: Validation failed for classes [br.com.note.models.Note] during persist time for groups [javax.validation.groups.Default, ]

List of constraint violations:[

ConstraintViolationImpl{interpolatedMessage='may not be empty', propertyPath=name, rootBeanClass=class br.com.note.models.Note, messageTemplate='{org.hibernate.validator.constraints.NotBlank.message}'}

]

at br.com.caelum.vraptor.interceptor.ExecuteMethodInterceptor.intercept(ExecuteMethodInterceptor.java:96)

at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)

at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)

at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)

at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)

at br.com.caelum.vraptor.interceptor.ParametersInstantiatorInterceptor.intercept(ParametersInstantiatorInterceptor.java:93)

at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:59)

at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)

at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)

at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)

at br.com.note.repositories.TesteInter.intercept(TesteInter.java:31)

at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)

at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)

at br.com.caelum.vraptor.util.jpa.JPATransactionInterceptor.intercept(JPATransactionInterceptor.java:51)

at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)

at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)

at br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:71)

at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)

at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)

at br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:83)

at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)

at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)

at br.com.caelum.vraptor.interceptor.InstantiateInterceptor.intercept(InstantiateInterceptor.java:48)

at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)

at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)

at br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:69)

at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)

at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)

at br.com.caelum.vraptor.core.EnhancedRequestExecution.execute(EnhancedRequestExecution.java:44)

at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:91)

at br.com.caelum.vraptor.ioc.spring.SpringProvider.provideForRequest(SpringProvider.java:58)

at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:88)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1115)

at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)

at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1115)

at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:361)

at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)

at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)

at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)

at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)

at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)

at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)

at org.mortbay.jetty.Server.handle(Server.java:324)

at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)

at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:879)

at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:741)

at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:213)

at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:403)

at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)

at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:522)

Caused by: javax.validation.ConstraintViolationException: Validation failed for classes [br.com.note.models.Note] during persist time for groups [javax.validation.groups.Default, ]

List of constraint violations:[

ConstraintViolationImpl{interpolatedMessage='may not be empty', propertyPath=name, rootBeanClass=class br.com.note.models.Note, messageTemplate='{org.hibernate.validator.constraints.NotBlank.message}'}

]

at org.hibernate.cfg.beanvalidation.BeanValidationEventListener.validate(BeanValidationEventListener.java:159)

at org.hibernate.cfg.beanvalidation.BeanValidationEventListener.onPreInsert(BeanValidationEventListener.java:94)

at org.hibernate.action.internal.EntityIdentityInsertAction.preInsert(EntityIdentityInsertAction.java:172)

at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:72)

at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:272)

at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:304)

at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:195)

at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:128)

at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:78)

at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:208)

at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:151)

at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:78)

at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:725)

at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:701)

at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:705)

at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:853)

at br.com.note.repositories.Repository.create(Repository.java:25)

at br.com.note.controllers.NoteController.save(NoteController.java:57)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:606)

at br.com.caelum.vraptor.interceptor.ExecuteMethodInterceptor.intercept(ExecuteMethodInterceptor.java:61)

... 51 more

[ERROR] /note/save