Java 监控请求

监控对象

import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentHashMap;


/**
 * 监控对象
 * 
 * @author solq
 * */
public class Monitor {
		/** 每分钟记录 */
	private ConcurrentHashMap<Long, Integer> record = new ConcurrentHashMap<>();
	/** 记录间隔 */
	private long recordInterval;
	/** 清理间隔 */
	private long cleanInterval;
	/** 记录名称 */
	private String name;
	/** 最后清理时间 */
	private long lastClean = System.currentTimeMillis();

	public static Monitor valueOf(String name, long recordInterval,
			long cleanInterval) {
		Monitor result = new Monitor();
		result.name = name;
		result.recordInterval = recordInterval;
		result.cleanInterval = cleanInterval;
		return result;
	}

	public void record() {
		final long start = System.currentTimeMillis();
		// 去掉除数 达到取上一时间点效果
		final long key = (start / recordInterval) * recordInterval;
 		if (Math.abs((start- lastClean)) > cleanInterval) {
			synchronized (this) {
				if (Math.abs((start- lastClean))> cleanInterval) {
					printlnAndClean();
				}
			}
		}

		record(key);
	}

	void record(Long key) {
		while (true) {
			Integer value = record.get(key);
			if (value == null) {
				if (record.putIfAbsent(key, 1) == null) {
					break;
				}
			} else {
				if (record.replace(key, value, value + 1)) {
					break;
				}
			}
		}
	}

	/**
	 * 打印并清理记录
	 * */
	private void printlnAndClean() {
		lastClean = System.currentTimeMillis();
		Map<Long, Integer> data = new HashMap<>(record);
		record.clear();
		for (Entry<Long, Integer> entry : data.entrySet()) {
			System.err.println(name
					+ " Monitor : "
					+ DateUtils.date2String(new Date(entry.getKey()),
							DateUtils.PATTERN_DATE_TIME) + " : "
					+ entry.getValue());
		}
	}

}

监控使用包装

/**
 * 请求监控工具
 * 
 * @author solq
 * */
public abstract class RequestMonitorUtil {
	private static Monitor commandMonitor = Monitor.valueOf("命令代理", 60 * 1000,
			60 * 60 * 1000);
	private static Monitor sqlMonitor = Monitor.valueOf("sql代理", 60 * 1000,
			60 * 60 * 1000);

	public static void recordSql() {
		try {
			commandMonitor.record();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static void recordCommand() {
		try {
			sqlMonitor.record();
		} catch (Exception e) {
			e.printStackTrace();
		}		
	}
}