/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * 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.alibaba.csp.sentinel.slots.block.flow;

import com.alibaba.csp.sentinel.config.SentinelConfig;
import com.alibaba.csp.sentinel.log.RecordLog;
import com.alibaba.csp.sentinel.util.StringUtil;

/**
 * @author jialiang.linjl
 */
class ColdFactorProperty {
    public static volatile int coldFactor = 3;

    static {
        String strConfig = SentinelConfig.getConfig(SentinelConfig.COLD_FACTOR);
        if (StringUtil.isBlank(strConfig)) {
            coldFactor = 3;
        } else {
            try {
                coldFactor = Integer.valueOf(strConfig);
            } catch (NumberFormatException e) {
                RecordLog.info(e.getMessage(), e);
            }

            if (coldFactor <= 1) {
                coldFactor = 3;
                RecordLog.info("cold factor should be larger than 3");
            }
        }
    }
}
