ConstraintViolationExceptionHandler.java

/*
 * The MIT License
 *
 * Copyright 2015 nikku.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package kickr.web;

import support.web.ViewProvider;
import javax.annotation.Priority;
import javax.inject.Singleton;
import javax.validation.ConstraintViolationException;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
import kickr.web.view.error.ValidationErrorsView;

/**
 *
 * @author nikku
 */
@Singleton
@Provider
@Produces("text/html")
@Priority(2000)
public class ConstraintViolationExceptionHandler extends ViewProvider implements ExceptionMapper<ConstraintViolationException> {

  @Override
  public Response toResponse(ConstraintViolationException exception) {
    ValidationErrorsView validationErrorsView = 
        createView(ValidationErrorsView.class)
          .withErrors(exception.getConstraintViolations());

    return Response.status(Response.Status.BAD_REQUEST).entity(validationErrorsView).build();
  }

}