/**
* Copyright (c) 2009 - 2012 Red Hat, Inc.
*
* This software is licensed to you under the GNU General Public License,
* version 2 (GPLv2). There is NO WARRANTY for this software, express or
* implied, including the implied warranties of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv2
* along with this software; if not, see
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
* Red Hat trademarks are not licensed under GPLv2. No permission is
* granted to use or replicate Red Hat trademarks that are incorporated
* in this software or its documentation.
*/
package org.candlepin.common.exceptions.mappers;
import org.candlepin.common.exceptions.ExceptionMessage;
import org.candlepin.common.util.VersionUtil;
import java.util.Map;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.validation.ValidationException;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
/**
* ValidationExceptionMapper maps the RESTEasy BadRequestException
* into JSON and allows the proper header to be set. This allows
* Candlepin to control the flow of the exceptions.
*/
@Provider
public class ValidationExceptionMapper extends CandlepinExceptionMapper
implements ExceptionMapper<ValidationException> {
@Override
public Response toResponse(ValidationException exception) {
Map<String, String> map = VersionUtil.getVersionMap();
ResponseBuilder bldr = Response.status(Status.BAD_REQUEST).type(
determineBestMediaType()).header(VersionUtil.VERSION_HEADER,
map.get("version") + "-" + map.get("release"));
StringBuffer message = new StringBuffer();
if (ConstraintViolationException.class.isAssignableFrom(exception.getClass())) {
for (ConstraintViolation cv :
((ConstraintViolationException) exception).getConstraintViolations()) {
message.append(cv.getPropertyPath().toString());
message.append(": ");
message.append(cv.getMessage());
}
bldr.entity(new ExceptionMessage(message.toString()));
}
else {
getDefaultBuilder(exception, Response.Status.BAD_REQUEST, determineBestMediaType());
}
return bldr.build();
}
}