com.gongpingjia.carplay.service.util.ActivityUtil.java Source code

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Here is the source code for com.gongpingjia.carplay.service.util.ActivityUtil.java

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package com.gongpingjia.carplay.service.util;

import com.gongpingjia.carplay.common.util.Constants;
import com.gongpingjia.carplay.dao.user.UserDao;
import com.gongpingjia.carplay.entity.activity.Activity;
import com.gongpingjia.carplay.entity.common.Landmark;
import com.gongpingjia.carplay.entity.user.User;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.*;

/**
 * Created by Administrator on 2015/9/23.
 */
public class ActivityUtil {

    public static List<Activity> getSortResult(List<Activity> activities, Date currentTime, Landmark nowLandmark,
            double maxDistance, long maxPubTime, int skip, int limit, int genderType, Set<String> toRemoveSet) {

        //genderType  -1 ?? genderType 0 ?? genderType 1 ??

        List<ActivityWeight> activityWeights = getPageInfo(sortActivityList(activities, currentTime, nowLandmark,
                maxDistance, maxPubTime, genderType, toRemoveSet), skip, limit);
        if (null == activityWeights) {
            return null;
        }
        ArrayList<Activity> rltList = new ArrayList<>(activityWeights.size());
        for (ActivityWeight activityWeight : activityWeights) {
            rltList.add(activityWeight.getActivity());
        }
        return rltList;
    }

    private static List<ActivityWeight> sortActivityList(List<Activity> activities, Date currentTime,
            Landmark nowLandmark, double maxDistance, long maxPubTime, int genderType, Set<String> toRemoveSet) {
        ArrayList<ActivityWeight> awList = new ArrayList<>(activities.size());
        for (Activity activity : activities) {
            Map<String, Object> user = activity.getOrganizer();

            //
            if (genderType == 0) {
                if (!StringUtils.equals(String.valueOf(user.get("gender")), Constants.UserGender.MALE)) {
                    continue;
                }
            } else if (genderType == 1) {
                if (!StringUtils.equals(String.valueOf(user.get("gender")), Constants.UserGender.FEMALE)) {
                    continue;
                }
            }
            if (null != toRemoveSet && !toRemoveSet.isEmpty()) {
                if (toRemoveSet.contains(activity.getActivityId())) {
                    continue;
                }
            }

            ActivityWeight aw = new ActivityWeight(activity);
            //  ?
            if (StringUtils.equals(String.valueOf(user.get("licenseAuthStatus")), Constants.AuthStatus.ACCEPT)) {
                aw.setCarOwnerFlag(true);
            }
            //??
            if (StringUtils.equals(String.valueOf(user.get("photoAuthStatus")), Constants.AuthStatus.ACCEPT)) {
                aw.setAvatarFlag(true);
            }
            //TODO
            //? ????

            //???
            initWeight(currentTime, nowLandmark, aw, maxDistance, maxPubTime);
            awList.add(aw);
        }
        Collections.sort(awList);
        return awList;
    }

    private static void initWeight(Date currentTime, Landmark nowLandmark, ActivityWeight activityWeight,
            double maxDistance, long maxPubTime) {
        Activity activity = activityWeight.getActivity();
        double weight = 0;
        double distance = DistanceUtil.getDistance(nowLandmark, activity.getDestPoint());
        activityWeight.setDistance(distance);
        activityWeight.getActivity().setDistance(distance);
        double distanceRate = 1 - distance / maxDistance;
        weight += distanceRate * 0.2;
        double timeRate = 1 - ((currentTime.getTime() - activity.getCreateTime()) / (1000 * 60)) / maxPubTime;
        weight += timeRate;
        //?
        if (activityWeight.isCarOwnerFlag()) {
            weight += 0.15;
        }
        //??
        if (activityWeight.isAvatarFlag()) {
            weight += 0.25;
        }
        //?
        if (activityWeight.isIdentityFlag()) {
            weight += 0.1;
        }
        if (activity.getDestination() != null) {
            weight += 0.15;
        }
        if (activity.getStart() != null) {
            weight += 0.05;
        }
        activityWeight.setWeight(weight);
    }

    private static List<ActivityWeight> getPageInfo(List<ActivityWeight> awList, int skip, int limit) {
        //
        int offset = 0;
        int len = 0;
        if (skip > awList.size()) {
            return null;
        }
        if (skip + limit > awList.size()) {
            offset = awList.size();
        } else {
            offset = skip + limit;
        }
        len = offset - skip;
        ArrayList<ActivityWeight> toList = new ArrayList<>(len);
        Iterator<ActivityWeight> iterator = awList.iterator();
        int index = 0;
        do {
            if (index >= skip) {
                toList.add(iterator.next());
            } else {
                iterator.next();
            }
            index++;
        } while (iterator.hasNext() && index < offset);
        return toList;
        //        if (skip > activities.size()) {
        //            return null;
        //        }
        //        for (int index = skip; index < activities.size() && index < skip + limit; index++) {
        //            toList.add(activities.get(index));
        //        }
        //        return toList;
    }

}