/*
 * Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
 * license agreements.  See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.  Crate 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.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial agreement.
 */

package io.crate.metadata.settings;

import org.elasticsearch.common.settings.Settings;

import javax.annotation.Nullable;

public class IntSetting extends Setting<Integer, Integer> {

    private final String name;
    private final Integer defaultValue;
    private Integer minValue = Integer.MIN_VALUE;
    private Integer maxValue = Integer.MAX_VALUE;

    public IntSetting(String name, Integer defaultValue) {
        this.name = name;
        this.defaultValue = defaultValue;
    }

    public IntSetting(String name,
                      Integer defaultValue,
                      @Nullable Integer minValue,
                      @Nullable Integer maxValue) {
        this(name, defaultValue);
        if (minValue != null) {
            this.minValue = minValue;
        }
        if (maxValue != null) {
            this.maxValue = maxValue;
        }
    }

    @Override
    public String name() {
        return name;
    }

    @Override
    public Integer defaultValue() {
        return defaultValue;
    }

    Integer maxValue() {
        return this.maxValue;
    }

    public Integer minValue() {
        return this.minValue;
    }

    public Integer extract(Settings settings) {
        return settings.getAsInt(name, defaultValue());
    }
}