/*
 * Copyright 2017 Red Hat, Inc. and/or its affiliates.
 *
 * 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 org.uberfire.preferences.shared.impl.validation;

import java.util.Collections;
import java.util.function.Predicate;

import org.uberfire.preferences.shared.PropertyValidator;

public class StringPropertyValidator implements PropertyValidator<String> {

    private Predicate<String> predicate;
    private String errorIfNotValid;

    public StringPropertyValidator(Predicate<String> predicate,
                                   String errorIfNotValid) {
        this.predicate = predicate;
        this.errorIfNotValid = errorIfNotValid;
    }

    @Override
    public ValidationResult validate(String value) {
        boolean isValid = predicate.test(value);
        if (isValid) {
            return new ValidationResult(true,
                                        Collections.emptyList());
        } else {
            return new ValidationResult(false,
                                        Collections.singletonList(errorIfNotValid));
        }
    }
}
