/*
 * Copyright 2015 Laurent Pellegrino
 *
 * 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.yfiton.api.parameter.validators;

import com.google.common.collect.Range;
import com.yfiton.api.exceptions.ParameterException;
import com.yfiton.api.exceptions.ValidationException;

/**
 * @author lpellegr
 */
public class IntegerValidator implements Validator<Integer> {

    private final Range<Integer> range;

    public IntegerValidator() {
        this.range = Range.all();
    }

    public IntegerValidator(int minValue) {
        this.range = Range.atLeast(minValue);
    }

    public IntegerValidator(int minValue, int maxValue) {
        this.range = Range.closed(minValue, maxValue);
    }

    @Override
    public void validate(String parameterName, Integer value) throws ValidationException {
        if (!range.contains(value)) {
            throw new ValidationException(
                    "Expected value in " + range.toString() + " for parameter '" + parameterName + "' but value is " + value);
        }
    }

}
