blob: dd855b70b540c007363c7306ad794d041bbaaeec [file] [log] [blame]
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.registry.web.mapper;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.validation.Path;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
@Component
@Provider
public class ConstraintViolationExceptionMapper implements ExceptionMapper<ConstraintViolationException> {
private static final Logger logger = LoggerFactory.getLogger(ConstraintViolationExceptionMapper.class);
@Override
public Response toResponse(ConstraintViolationException exception) {
// start with the overall message which will be something like "Cannot create xyz"
final StringBuilder errorMessage = new StringBuilder(exception.getMessage()).append(" - ");
boolean first = true;
for (final ConstraintViolation violation : exception.getConstraintViolations()) {
if (!first) {
errorMessage.append(", ");
}
first = false;
// lastNode should end up as the field that failed validation
Path.Node lastNode = null;
for (final Path.Node node : violation.getPropertyPath()) {
lastNode = node;
}
// append something like "xyz must not be..."
errorMessage.append(lastNode.getName()).append(" ").append(violation.getMessage());
}
logger.info(String.format("%s. Returning %s response.", errorMessage, Response.Status.BAD_REQUEST));
if (logger.isDebugEnabled()) {
logger.debug(StringUtils.EMPTY, exception);
}
return Response.status(Response.Status.BAD_REQUEST).entity(errorMessage.toString()).type("text/plain").build();
}
}