TimeKeyMapper.java

package com.taobao.top.analysis.statistics.map;

import java.text.ParseException;

import org.apache.commons.lang.math.NumberUtils;

import com.taobao.top.analysis.node.job.JobTask;
import com.taobao.top.analysis.statistics.data.ReportEntry;
import com.taobao.top.analysis.util.AnalysisConstants;
import com.taobao.top.analysis.util.ThreadLocalVar;


/**
 * 时间类型的MapClass实现
 * 
 * @author fangweng
 * @Email fangweng@taobao.com 2011-11-26
 * 
 */
public class TimeKeyMapper extends DefaultMapper {

    /**
	 * 
	 */
    private static final long serialVersionUID = 7987742959483474779L;


    @Override
    protected String generateKey(ReportEntry entry, String[] contents, JobTask jobtask) {
        int timeKey = Integer.valueOf(entry.getKeys()[0]);
        if (timeKey > contents.length)
            return null;
        String timeContent = contents[timeKey - 1];
        long currentTime = 0;
        if(NumberUtils.isNumber(timeContent) && !timeContent.contains(":")) {
            currentTime = Long.valueOf(timeContent);
        } else {
            try {
                if(timeContent.contains(".")) {
                    timeContent = timeContent.substring(0, timeContent.indexOf("."));
                }
                currentTime = ThreadLocalVar.getDateFormat().parse(timeContent).getTime();
            }
            catch (ParseException e) {
                if(!threshold.sholdBlock()) {
                    logger.error("content is " + timeContent + ", job:" + jobtask.getJobName(), e);
                }
            }
        }

        StringBuilder otherkeys = new StringBuilder();

        if (entry.getKeys().length > 1) {
            for (int i = 1; i < entry.getKeys().length; i++) {
                otherkeys.append(AnalysisConstants.SPLIT_KEY).append(contents[Integer.valueOf(entry.getKeys()[i]) - 1]);
            }
        }

        String mapParams = entry.getMapParams();

        if (mapParams != null && !mapParams.equals("")) {
            StringBuilder result = new StringBuilder();
            long currentLongMinute = currentTime / (60 * 1000);		// timestamp是多少分钟

            // 分钟方式
            if (mapParams.startsWith("minute")) {
                // 可定制化
                int interval = 0;
                int currentMinute = (int) (currentLongMinute % 60); // 取minute
                int addMinute = 0;

                if (!mapParams.equals("minute"))
                    interval = Integer.valueOf(mapParams.substring("minute:".length()));

                if (interval > 0) {
                    while (currentMinute >= addMinute) {
                        addMinute += interval;
                    }
                }

                result.append(currentLongMinute + addMinute - currentMinute);

            }// 日方式
            else {
                result.append(currentTime / (86400000));
            }

            if (otherkeys.length() > 0)
                result.append(otherkeys);

            return result.toString();
        }// 没有任何参数
        else {
            StringBuilder result = new StringBuilder();

            result.append(currentTime / (3600000));

            if (otherkeys.length() > 0)
                result.append(otherkeys);

            return result.toString();

        }
    }

}