Hibernate Bean Validation not working properly in OSGi env
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 ).
-
ValidationClient.zip 7.5 KB
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ValidationUtil.zip 970.9 KB
