ValidationExceptionMapper.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it). 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package org.openspcoop2.utils.service.fault.jaxrs;

import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.validation.ValidationException;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;

import org.openspcoop2.utils.transport.http.HttpConstants;
import org.openspcoop2.utils.transport.http.HttpUtilities;
import org.slf4j.Logger;

/** 
 * ValidationExceptionMapper
 *
 * @author Poli Andrea (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
@Provider
public class ValidationExceptionMapper implements ExceptionMapper<ValidationException> {

    private Logger log = org.openspcoop2.utils.LoggerWrapperFactory.getLogger(ValidationExceptionMapper.class);
    
    private boolean updateTitle = true;
    private ITypeGenerator typeGenerator;
    
    public boolean isUpdateTitle() {
        return this.updateTitle;
    }
    public void setUpdateTitle(boolean updateTitle) {
        this.updateTitle = updateTitle;
    }
    
    public ITypeGenerator getTypeGenerator() {
        return this.typeGenerator;
    }
    public void setTypeGenerator(ITypeGenerator typeGenerator) {
        this.typeGenerator = typeGenerator;
    }
    
    @Override
    public Response toResponse(ValidationException exception) {
        
        this.log.error(exception.getMessage(),exception);
        
        ProblemValidation problem = new ProblemValidation(FaultCode.RICHIESTA_NON_VALIDA.toFault());
        if (exception instanceof ConstraintViolationException) {
            final ConstraintViolationException constraint = (ConstraintViolationException) exception;

            for (final ConstraintViolation< ? > violation: constraint.getConstraintViolations()) {
                problem.addInvalidParam(violation.getPropertyPath().toString(), violation.getMessage(), violation.getInvalidValue());
            }
        } 
        this.updateProblem(problem, exception); // customizzabile
        this._setType(problem, exception);
        if(this.updateTitle) {
            // aggiorno rispetto al code modificabile nel metodo sopra
            problem.setTitle(HttpUtilities.getHttpReason(problem.getStatus()));
        }
        return Response.status(problem.getStatus()).entity(problem).type(HttpConstants.CONTENT_TYPE_JSON_PROBLEM_DETAILS_RFC_7807).build();
    }
    
    public void _setType(ProblemRFC7807 problem, ValidationException e) {
        if(this.typeGenerator==null) {
            return;
        }
        problem.setType(this.typeGenerator.getType(problem.getStatus(), e));
    }
    
    
    public void updateProblem(ProblemRFC7807 problem, ValidationException e) {
        
    }
}