receber BigDecimal

[Fabio Ebner]

Estou tendo esse erro ao receber um BigDecimal:

anamerNameProvider] Found parameter names with paranamer for public void br.com.lumera.integrabrasil.controllers.ComunicadoController.informarCustasComunicado(java.math.BigDecimal,java.lang.String) as [vlCustas, protocolo]

18:55:25,056 DEBUG [IogiParametersProvider] getParametersFor() called with parameters Parameters(Parameter(protocolo -> CP2301000000412615), Parameter(vlCustas -> 2)) and targets [Target(name=vlCustas, type=class java.math.BigDecimal), Target(name=protocolo, type=class java.lang.String)].

18:55:25,056 DEBUG [DefaultConverters   ] Unable to find a converter for class java.math.BigDecimal. Returning NullConverter.

Jan 31, 2015 6:55:25 PM org.apache.catalina.core.StandardWrapperValve invoke

SEVERE: Servlet.service() for servlet [default] in context with path [/integranovo] threw exception

br.com.caelum.vraptor.http.InvalidParameterException: Exception when trying to instantiate Target(name=vlCustas, type=class java.math.BigDecimal)

at br.com.caelum.vraptor.http.iogi.VRaptorInstantiator.handleException(VRaptorInstantiator.java:128)

at br.com.caelum.vraptor.http.iogi.VRaptorInstantiator.handleException(VRaptorInstantiator.java:130)

at br.com.caelum.vraptor.http.iogi.VRaptorInstantiator.instantiate(VRaptorInstantiator.java:120)

at br.com.caelum.vraptor.http.iogi.VRaptorInstantiator.instantiate(VRaptorInstantiator.java:112)

at br.com.caelum.vraptor.http.iogi.VRaptorInstantiator$Proxy$_$$_WeldClientProxy.instantiate(Unknown Source)

at br.com.caelum.vraptor.http.iogi.IogiParametersProvider.instantiateOrAddError(IogiParametersProvider.java:87)

at br.com.caelum.vraptor.http.iogi.IogiParametersProvider.instantiateParameters(IogiParametersProvider.java:80)

at br.com.caelum.vraptor.http.iogi.IogiParametersProvider.getParametersFor(IogiParametersProvider.java:72)

at br.com.caelum.vraptor.http.iogi.IogiParametersProvider$Proxy$_$$_WeldClientProxy.getParametersFor(Unknown Source)

at br.com.caelum.vraptor.observer.ParametersInstantiator.getParametersForCurrentMethod(ParametersInstantiator.java:149)

at br.com.caelum.vraptor.observer.ParametersInstantiator.instantiate(ParametersInstantiator.java:89)

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 org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)

at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)

at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)

at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)

at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)

at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)

at org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)

at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)

at org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)

at br.com.caelum.vraptor.core.DefaultInterceptorStack.start(DefaultInterceptorStack.java:90)

at br.com.caelum.vraptor.core.DefaultInterceptorStack$Proxy$_$$_WeldClientProxy.start(Unknown Source)

at br.com.caelum.vraptor.observer.RequestHandlerObserver.handle(RequestHandlerObserver.java:93)

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 org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)

at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)

at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)

at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)

at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)

at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)

at org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)

at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)

at org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)

at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:123)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at java.lang.Thread.run(Thread.java:724)

Caused by: com.thoughtworks.paranamer.ParameterNamesNotFoundException: One or more @Named annotations missing for class 'java.math.BigDecimal', methodOrCtor <init> and parameter types java.math.BigInteger,int,java.math.MathContext

at com.thoughtworks.paranamer.AnnotationParanamer.lookupParameterNames(AnnotationParanamer.java:129)

at com.thoughtworks.paranamer.CachingParanamer.lookupParameterNames(CachingParanamer.java:90)

at com.thoughtworks.paranamer.CachingParanamer.lookupParameterNames(CachingParanamer.java:83)

at br.com.caelum.vraptor.http.ParanamerNameProvider.parametersFor(ParanamerNameProvider.java:50)

at br.com.caelum.vraptor.http.ParanamerNameProvider$Proxy$_$$_WeldClientProxy.parametersFor(Unknown Source)

at br.com.caelum.vraptor.http.iogi.VRaptorParameterNamesProvider.lookupParameterNames(VRaptorParameterNamesProvider.java:57)

at br.com.caelum.vraptor.http.iogi.VRaptorParameterNamesProvider$Proxy$_$$_WeldClientProxy.lookupParameterNames(Unknown Source)

at br.com.caelum.iogi.reflection.ClassConstructor.<init>(ClassConstructor.java:24)

at br.com.caelum.iogi.reflection.Target.constructors(Target.java:115)

at br.com.caelum.iogi.ObjectInstantiator.instantiate(ObjectInstantiator.java:30)

at br.com.caelum.iogi.MultiInstantiator.instantiate(MultiInstantiator.java:20)

at br.com.caelum.vraptor.http.iogi.VRaptorInstantiator.instantiate(VRaptorInstantiator.java:118)

... 54 more

meu metodo esta assim: 

@Post(value="/constricao/custas")

public void informarCustasComunicado(BigDecimal vlCustas, @NotEmpty String protocolo){

[José Filipe Lyra]

E aí Fabio!

Vc está enviando como um form html normal, com "application/x-www-form-urlencoded" ou você envia um json (application/json)?

Se for json faltou o @Consumes("application/json").

Agora se for formulário normal mesmo seria bom confirmar se o dado está sendo enviado certo para o servidor.

Abs

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[Fabio Ebner]

Nao estou  fazendo um request ajax lyra, se eu trocar de BigDecimal para Integer ele vai corretamente, ate mesmo se eu mandar o valor 1, ele da erro quando e bigdecimal

[José Filipe Lyra]

Humm, entendi, Fabio.

Vou testar num projeto aqui também. Se eu tiver algum problema compartilho aqui.

[Fabio Ebner]

Lucas e Rodrigo sabem o pq desse erro??

19:46:32,857 DEBUG [ParanamerNameProvider] Found parameter names with paranamer for public void br.com.lumera.integrabrasil.controllers.ComunicadoController.informarCustasComunicado(java.math.BigDecimal,java.lang.String) as [vlCustas, protocolo]

19:46:32,857 DEBUG [IogiParametersProvider] getParametersFor() called with parameters Parameters(Parameter(protocolo -> CP0202000000412715), Parameter(vlCustas -> 123123)) and targets [Target(name=vlCustas, type=class java.math.BigDecimal), Target(name=protocolo, type=class java.lang.String)].

19:46:32,857 DEBUG [DefaultConverters   ] Unable to find a converter for class java.math.BigDecimal. Returning NullConverter.

Fev 02, 2015 7:46:32 PM org.apache.catalina.core.StandardWrapperValve invoke

SEVERE: Servlet.service() for servlet [default] in context with path [/integranovo] threw exception

br.com.caelum.vraptor.http.InvalidParameterException: Exception when trying to instantiate Target(name=vlCustas, type=class java.math.BigDecimal)

at br.com.caelum.vraptor.http.iogi.VRaptorInstantiator.handleException(VRaptorInstantiator.java:128)

estou recebendo um BigDecimal no meu metodo, ja tentei passar 1, 1.2, 1,2 e nao foi em nenhum, se eu mudar o tipo para Integer vai normal

[Fabio Ebner]

So uma coisa, eu criei um converter:

@Specializes

public class MyBigDecimalConverter extends BigDecimalConverter implements JsonDeserializer<BigDecimal>, JsonSerializer<BigDecimal>{

DecimalFormat df = null;

Locale brasil = new Locale("pt", "BR");

@Override

public JsonElement serialize(BigDecimal valor, Type tipo,

JsonSerializationContext context) {

 

        this.df = new DecimalFormat("#,##0.00", new DecimalFormatSymbols(this.brasil));

        this.df.setParseBigDecimal(true);

return new JsonPrimitive(df.format(valor));

}

@Override

public BigDecimal deserialize(JsonElement elemento, Type tipo,

JsonDeserializationContext context) throws JsonParseException {

this.df = new DecimalFormat("#,##0.00", new DecimalFormatSymbols(this.brasil));

        this.df.setParseBigDecimal(true);

try {

return (BigDecimal) df.parse(elemento.getAsString());

} catch (ParseException e) {

e.printStackTrace();

return null;

}

}

}

para que eu receba no formato brasileiro, quando o BigDecimal esta dentro de uma classe ele funciona normalmente. porem quando ela esta direta no metodo nao

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[Lucas Cavalcanti]

Isso é bem estranho... no parâmetro não funciona, mas dentro de um objeto funciona.

Tenta receber em uma classe, em outro controller, injetado o Converters e faz um converters.to(BigDecimal.class) e ver se retorna a sua classe.

[]'s

Lucas Cavalcanti

livro de VRaptor: www.casadocodigo.com.br/products/livro-vraptor

github.com/lucascs

@lucascs

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[Fabio Ebner]

como assim nao entendi.

Se eu colocar um bigdecimal dentro de um objeto :

public class muObjeto{

  String nome;

  BigDecimal valor;

}

funciona, porem se eu colocar no metodo do controller nao.

[Lucas Cavalcanti]

Então, em algum controller crie isso:

@Get("/testando123")

public void teste(Converters converters) {

    System.out.println(converters.to(BigDecimal.class));

}

e veja se imprime a sua classe.

[]'s

Lucas Cavalcanti

livro de VRaptor: www.casadocodigo.com.br/products/livro-vraptor

github.com/lucascs

@lucascs

[Fabio Ebner]

Lucas, recebi esse erro: 08:52:25,273 DEBUG [HibernateTransactionInterceptor] tx was rolled back

Fev 03, 2015 8:52:25 AM org.apache.catalina.core.StandardWrapperValve invoke

SEVERE: Servlet.service() for servlet [default] in context with path [/integranovo] threw exception [java.lang.IllegalStateException: Unable to find converter for java.math.BigDecimal] with root cause

java.lang.IllegalStateException: Unable to find converter for java.math.BigDecimal

[Rodrigo Turini]

​tenta tirar o seu ​MyBigDecimalConverter que está especializando e fazer 

novamente? Só pra ver se o BigDecimalConverter nosso vai ser registrado.

Rodrigo Turini

Caelum | Ensino e Inovação
www.caelum.com.br

[Rodrigo Turini]

Ah, agora que vi! Faltou adicionar o @Convert(BigDecimal.class) no seu bean:

@Specializes @Convert(BigDecimal.class)

public class MyBigDecimalConverter extends BigDecimalConverter 

   implements JsonDeserializer<BigDecimal>, JsonSerializer<BigDecimal>{ ... }​

​Quando você especializa, tem que adicionar! Igual no exemplo da nossa doc.​

Rodrigo Turini

Caelum | Ensino e Inovação
www.caelum.com.br

[Fabio Ebner]

Rodrigo,

agora so de eu chamar o meu login ele ja da esse erro:


  WARN [DefaultEnvironment  ] Could not find the file 'environment.properties' to load.
17:49:22,392 DEBUG [DefaultExceptionMapper] find for exception class java.lang.ClassCastException
17:49:22,395 DEBUG [HibernateTransactionInterceptor] tx was rolled back
Fev 03, 2015 5:49:22 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [default] in context with path [/integranovo] threw exception [java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType] with root cause
java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType
    at br.com.caelum.vraptor.serialization.gson.GsonBuilderWrapper.getAdapterType(GsonBuilderWrapper.java:99)
    at br.com.caelum.vraptor.serialization.gson.GsonBuilderWrapper.create(GsonBuilderWrapper.java:74)
    at br.com.caelum.vraptor.serialization.gson.GsonSerializer.serialize(GsonSerializer.java:133)
    at br.com.lumera.integrabrasil.controllers.UsuarioController.loginUsuario(UsuarioController.java:39)
    at br.com.lumera.integrabrasil.controllers.UsuarioController$Proxy$_$$_WeldClientProxy.loginUsuario(Unknown Source)

[Fabio Ebner]

Rodrigo

Consegui fazendo o seguinte:


@Specializes
@Convert(BigDecimal.class)
public class MyBigDecimalConverter extends BigDecimalConverter {

    DecimalFormat df = null;
    Locale brasil = new Locale("pt", "BR");
   
    @Override

    public BigDecimal convert(String value, Class<? extends BigDecimal> type) {

    this.df = new DecimalFormat("#,##0.00", new DecimalFormatSymbols(this.brasil));
    this.df.setParseBigDecimal(true);
    try {

        return (BigDecimal) df.parse(value);
    } catch (ParseException e) {

        return null;
    }
        //return super.convert(value, type);
    }

}

porem nesse caso eu perco o converter de BigDecimal para String.. pq ja quero enviar os valores com , pontuacao brasileira (1.000,21)

obrigado

[Rodrigo Turini]

Oi Fábio, não sei se entendi bem. Você quer ter que o converter use #,#.# pro 

param vlCustas, e o default atual pra todos os outros casos? Se sim, não pode

passar uma classe Xpto que tem o vlCustas lá dentro e criar o converter p/ ela?

Rodrigo Turini

Caelum | Ensino e Inovação
www.caelum.com.br

[Fabio Ebner]

Entao eu criei um GsonSerializer


public class MyBigDecimalSerializer implements JsonDeserializer<BigDecimal>, JsonSerializer<BigDecimal>{

    DecimalFormat df = null;
    Locale brasil = new Locale("pt", "BR");
   
    @Override

    public JsonElement serialize(BigDecimal valor, Type tipo,
            JsonSerializationContext context) {
         

        this.df = new DecimalFormat("#,##0.00", new DecimalFormatSymbols(this.brasil));
        this.df.setParseBigDecimal(true);

        return new JsonPrimitive(df.format(valor));
    }

    @Override
    public BigDecimal deserialize(JsonElement elemento, Type tipo,
            JsonDeserializationContext context) throws JsonParseException {

        this.df = new DecimalFormat("#,##0.00", new DecimalFormatSymbols(this.brasil));
        this.df.setParseBigDecimal(true);
        try {

            return (BigDecimal) df.parse(elemento.getAsString());
        } catch (ParseException e) {
            e.printStackTrace();
            return null;
        }
    }

}