http://www.dropwizard.io/2.0.18/dropwizard-bom/dropwizard-dependencies/dropwizard-parent/dropwizard-core: Dropwizard is a Java framework for developing ops-friendly, high-performance, RESTful web applications.
  • Coda Hale
  • Nick Telford
  • Graham O'Regan
  • Ryan Kennedy
  • Camille Fournier
  • Carlo Barbara
  • Matt Veitas
  • Ryan Tenney
  • Jochen Schalanda
  • Glenn McAllister
  • Nick Babcock
  • Justin Plock
  • Artem Prigoda 
package io.dropwizard.validation;

import io.dropwizard.jersey.validation.MutableValidatorFactory;
import org.glassfish.jersey.server.validation.internal.InjectingConstraintValidatorFactory;

import javax.inject.Inject;
import javax.validation.ConstraintValidatorFactory;
import javax.validation.ValidatorFactory;
import javax.ws.rs.container.ResourceContext;
import javax.ws.rs.core.Feature;
import javax.ws.rs.core.FeatureContext;


Since:2.0
/**
 * @since 2.0
 */
public class InjectValidatorFeature implements Feature {

    private final ValidatorFactory validatorFactory;

    @Inject
    private ResourceContext resourceContext;

    public InjectValidatorFeature(ValidatorFactory validatorFactory) {
        this.validatorFactory = validatorFactory;
    }

    @Override
    public boolean configure(FeatureContext context) {
        ConstraintValidatorFactory constraintValidatorFactory = validatorFactory.getConstraintValidatorFactory();
        if (constraintValidatorFactory instanceof MutableValidatorFactory) {
            MutableValidatorFactory mutableValidatorFactory = (MutableValidatorFactory) constraintValidatorFactory;
            ConstraintValidatorFactory validatorFactory =
                resourceContext.getResource(InjectingConstraintValidatorFactory.class);

            mutableValidatorFactory.setValidatorFactory(validatorFactory);
            return true;
        }

        return false;
    }
}