com.nebhale.buildmonitor.web.ControllerUtils.java Source code

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Here is the source code for com.nebhale.buildmonitor.web.ControllerUtils.java

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/*
 * Copyright 2013-2014 the original author or authors.
 *
 * Licensed 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 com.nebhale.buildmonitor.web;

import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;

import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import java.util.HashSet;
import java.util.Set;
import java.util.stream.Collectors;

@ControllerAdvice
final class ControllerUtils {

    @ExceptionHandler(ConstraintViolationException.class)
    ResponseEntity<Set<String>> handleConstraintViolation(ConstraintViolationException e) {
        Set<ConstraintViolation<?>> constraintViolations = e.getConstraintViolations();

        Set<String> messages = new HashSet<>(constraintViolations.size());
        messages.addAll(constraintViolations.stream()
                .map(constraintViolation -> String.format("%s value '%s' %s", constraintViolation.getPropertyPath(),
                        constraintViolation.getInvalidValue(), constraintViolation.getMessage()))
                .collect(Collectors.toList()));

        return new ResponseEntity<>(messages, HttpStatus.BAD_REQUEST);
    }

}