Hi Everyone,

I'm trying to implement Bean Validation for some of the POJOs which are residing inside bundles using Hibernate Bean Validation. I decided to move the validation logic to a separate bundle (ValidationUtil) so  that all other bundles can access it ( for ex: ValidationClient). But when I try to validate beans which are instantiated inside my client bundles, validation never get fired ( ie my beans bypasses validation though I have assigned wrong values for  the beans).

In my client bundle I have a POJO named DBAuthentication which implements Authentication as shown below.

public class DBAuthentication implements Authentication {

    @NotNull(message="User Name cannot be null")
    private String userName;

    @Min(value=5)
    @NotNull(message="Password cannot be null")
    private String password;

    // ---other getters and setters 
}

This is what I'm doing in my Client Activator.

public void start(BundleContext context) throws Exception {
        System.out.println("Hello World -ValidationClient!!");

        try {
                ValidationUtil validationUtil = new ValidationUtil();     // exported by ValidationUtil bundle
                Authentication auth = new DBAuthentication();
                if (validationUtil.isValid(auth)) {
                    System.out.println("Valid");
                }
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

But this always print "Valid".

And this is my ValidationUtil which is inside ValidationUtil bundle.

package com.ctl.validation.util;

import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
import javax.validation.groups.Default;

 /*
import com.manessinger.cookbook.exception.ConstraintProperty;
import com.manessinger.cookbook.exception.ValidationException;
import com.manessinger.cookbook.exception.ViolationDetail;
 */
public class ValidationUtil {

    // the factory is expensive but thread-safe
    private ValidatorFactory factory = Validation.buildDefaultValidatorFactory();

    public boolean isValid(Object obj) throws ValidationException {

        System.out.println("in validation util");
        boolean isValid = true;
        List<ViolationDetail> details= null;

        /*Field[] fields = obj.getClass().getDeclaredFields();
        System.out.println(fields.length);
        for (Field field : fields) {
            System.out.println("Field Name "+field.getName());
            Annotation[] anns = field.getAnnotations();
            for (Annotation ann : anns) {
                System.out.println(ann.getClass().getCanonicalName());
            }
        }*/
        Validator v = factory.getValidator();

        Set<ConstraintViolation<Object>> violations = v.validate(obj, Default.class);
        System.out.println(violations.size());
        if (violations != null & !violations.isEmpty()) {
                isValid = false;
             details = new ArrayList<ViolationDetail>();
             for (ConstraintViolation<Object> constrain:violations) {
                 System.out.println("-"+constrain.getMessage());
                 ViolationDetail detail = new ViolationDetail();
                 detail.setAttributeName(constrain.getPropertyPath().toString());
                 detail.setMessage(constrain.getMessage());
                 detail.setViolationType(constrain.getConstraintDescriptor()
                        .getAnnotation().annotationType().getSimpleName());
                 Object invalidValue = constrain.getInvalidValue();
                 detail.setInvalidValue((invalidValue != null ? 
                        invalidValue.toString() : "null"));
                 details.add(detail);
             }
             throw new ValidationException(details);
        }
        return isValid;

    }
}

Validation is working fine, when I try to validate any beans which are created in side ValidationUtil bundle. Also field.getAnnotations[] is giving me blank array for client bundle beans. I guess this may be because in this case, bean has been loaded by a different class loader. But I couldn't figure out how I can solve this.

I'm attaching the sources for both bundles here. Could any one pls point me to rite direction?

Message was edited by: Ranis MK My Manifest headers look as below. ValidationUtil      Manifest-Version: 1.0     Bundle-ManifestVersion: 2     Bundle-Name: ValidationUtil     Bundle-SymbolicName: ValidationUtil     Bundle-Version: 1.0.0.qualifier     Bundle-Activator: com.ctl.validation.ValidationActivator     Import-Package: org.osgi.framework;version="1.3.0"     Bundle-RequiredExecutionEnvironment: JavaSE-1.6     Bundle-ClassPath: .,hibernate-validator-4.3.0.Final.jar,     jboss-logging-3.1.0.CR2.jar,     validation-api-1.0.0.GA.jar     Export-Package: com.ctl.validation.util      ValidationClient     Manifest-Version: 1.0     Bundle-ManifestVersion: 2     Bundle-Name: ValidationClient     Bundle-SymbolicName: ValidationClient     Bundle-Version: 1.0.0.qualifier     Bundle-Activator: com.ctl.validationclient.ValidationClientActivator     Import-Package: org.osgi.framework;version="1.3.0",     com.ctl.validation.util     Bundle-RequiredExecutionEnvironment: JavaSE-1.6     Bundle-ClassPath: .,validation-api-1.0.0.GA.jar     Export-Package: com.ctl.validationclient.model      ( I have copied all the required jars into the bundle just to make the set up simple ).