com.dianping.squirrel.client.util.CacheMonitorUtil.java Source code

Introduction

Here is the source code for com.dianping.squirrel.client.util.CacheMonitorUtil.java

Source

/**
 * Project: avatar-cache
 * 
 * File Created at 2011-9-13
 * $Id$
 * 
 * Copyright 2010 dianping.com.
 * All rights reserved.
 *
 * This software is the confidential and proprietary information of
 * Dianping Company. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with dianping.com.
 */
package com.dianping.squirrel.client.util;

import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.dianping.squirrel.common.config.ConfigManagerLoader;

/**
 * 
 * @author danson.liu
 */
public class CacheMonitorUtil {

    private static final Logger logger = LoggerFactory.getLogger(CacheMonitorUtil.class);

    private static ConcurrentMap<String, Integer> logFactorMap = new ConcurrentHashMap<String, Integer>();

    private static final int logInterval = ConfigManagerLoader.getConfigManager()
            .getIntValue("avatar-cache.log.interval", 100);

    /**
     * category??
     * 
     * @param category
     */
    public static void logConfigNotFound(String category, String error, int logInterval) {
        int logFactorNew = getNewLogFactor(category);
        if (logFactorNew % logInterval == 0) {
            logger.error(error);
        }
    }

    /**
     * ?hawk
     * 
     * @param errorMsg
     * @param throwable
     */
    public static void logCacheError(String errorMsg, Throwable throwable) {
        String factorName = StringUtils.substringBefore(errorMsg, "[");
        int logFactorNew = getNewLogFactor(factorName);
        if (logFactorNew % logInterval == 0) {
            logger.error("Operate cache error: " + errorMsg, throwable);
        }
    }

    private static int getNewLogFactor(String factorName) {
        Integer newFactor = null;
        if (logFactorMap.containsKey(factorName)) {
            Integer oldFactor = logFactorMap.get(factorName);
            newFactor = oldFactor + 1;
            logFactorMap.put(factorName, newFactor);
        } else {
            logFactorMap.put(factorName, 0);
            newFactor = 0;
        }
        return newFactor;
    }

}