BeanValidationConfigConsistencyChecker.java

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/*
 * *********************************************************************** *
 * project: org.matsim.*
 * *********************************************************************** *
 *                                                                         *
 * copyright       : (C) 2019 by the members listed in the COPYING,        *
 *                   LICENSE and WARRANTY file.                            *
 * email           : info at matsim dot org                                *
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *   See also COPYING, LICENSE and WARRANTY file                           *
 *                                                                         *
 * *********************************************************************** *
 */

package org.matsim.core.config.consistency;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

import jakarta.validation.ConstraintViolation;
import jakarta.validation.ConstraintViolationException;
import jakarta.validation.Validation;
import jakarta.validation.Validator;

import org.matsim.core.config.Config;
import org.matsim.core.config.ConfigGroup;

public class BeanValidationConfigConsistencyChecker implements ConfigConsistencyChecker {
    private static final Validator validator = Validation.buildDefaultValidatorFactory().getValidator();

    @Override
    public void checkConsistency(Config config) {
        Set<ConstraintViolation<ConfigGroup>> violations = new HashSet<>();
        List<String> messages = new ArrayList<>();

        for (ConfigGroup group : config.getModules().values()) {
            Set<ConstraintViolation<ConfigGroup>> groupViolations = validator.validate(group);
            violations.addAll(groupViolations);
            for (ConstraintViolation<ConfigGroup> v : groupViolations) {
                messages.add((messages.size() + 1)
                        + ") "
                        + group.getClass().getName()
                        + "(name="
                        + group.getName()
                        + ")."
                        + v.getPropertyPath()
                        + ": "
                        + v.getMessage());
            }
        }

        if (!violations.isEmpty()) {
            String message = messages.size() + " error(s) found in the config:\n" + messages.stream()
                    .collect(Collectors.joining("\n"));
            throw new ConstraintViolationException(message, violations);
        }
    }
}