[Spring cloud 一步步實現廣告系統] 17. 根據流量類型查詢廣告

廣告檢索服務

功能介紹

> 媒體方（手機APP打開的展現廣告，走在路上看到的大屏幕廣告等等）

請求數據對象實現

從上圖咱們能夠看出，在媒體方向咱們的廣告檢索系統發起請求的時候，請求中會有不少的請求參數信息，他們分爲了三個部分，咱們來編碼封裝這幾個參數對象信息以及咱們請求自己的信息。Let's code.

• 建立廣告檢索請求接口

/**
 * ISearch for 請求接口,
 * 根據廣告請求對象，獲取廣告響應信息
 *
 * @author <a href="mailto:magicianisaac@gmail.com">Isaac.Zhang | 若初</a>
 */
@FunctionalInterface
public interface ISearch {

    /**
     * 根據請求返回廣告結果
     */
    SearchResponse fetchAds(SearchRequest request);
}

• 建立SearchRequest,包含三部分：mediaId,RequestInfo,FeatureInfo

@Data
@NoArgsConstructor
@AllArgsConstructor
public class SearchRequest {

    //媒體方請求標示
    private String mediaId;
    //請求基本信息
    private RequestInfo requestInfo;
    //匹配信息
    private FeatureInfo featureInfo;


    @Data
    @NoArgsConstructor
    @AllArgsConstructor
    public static class RequestInfo {
        private String requestId;

        private List<adslot> adSlots;
        private App app;
        private Geo geo;
        private Device device;
    }

    @Data
    @NoArgsConstructor
    @AllArgsConstructor
    public static class FeatureInfo {

        private KeywordFeature keywordFeature;
        private DistrictFeature districtFeature;
        private HobbyFeatrue hobbyFeatrue;

        private FeatureRelation relation = FeatureRelation.AND;
    }
}

其餘的對象你們能夠去github傳送門 & gitee傳送門 下載源碼。

檢索響應對象定義

/**
 * SearchResponse for 檢索API響應對象
 *
 * @author <a href="mailto:magicianisaac@gmail.com">Isaac.Zhang | 若初</a>
 */
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class SearchResponse {

    //一個廣告位，能夠展現多個廣告
    //Map key爲廣告位 AdSlot#adSlotCode
    public Map<string, list<creative>&gt; adSlotRelationAds = new HashMap&lt;&gt;();

    @Data
    @Builder
    @NoArgsConstructor
    @AllArgsConstructor
    public static class Creative {

        private Long adId;
        private String adUrl;
        private Integer width;
        private Integer height;
        private Integer type;
        private Integer materialType;

        //展現監控url
        private List<string> showMonitorUrl = Arrays.asList("www.life-runner.com", "www.babydy.cn");
        //點擊監控url
        private List<string> clickMonitorUrl = Arrays.asList("www.life-runner.com", "www.babydy.cn");
    }

    /**
     * 咱們的檢索服務針對的是內存中的索引檢索，那麼咱們就須要一個轉換方法
     */
    public static Creative convert(CreativeIndexObject object) {
        
        return Creative.builder()
                       .adId(object.getAdId())
                       .adUrl(object.getAdUrl())
                       .width(object.getWidth())
                       .height(object.getHeight())
                       .type(object.getType())
                       .materialType(object.getMaterialType())
                       .build();
    }
}

根據流量類型廣告過濾

流量類型自己屬於推廣單元下的類目，有不少種類貼片廣告,開屏廣告等等，這些類型須要同步到媒體方，媒體方會根據不一樣的流量類型發起不一樣的廣告請求，咱們須要先定義一個流量類型的信息類。

public class AdUnitConstants {
    public static class PositionType{
        //App啓動時展現的、展現時間短暫的全屏化廣告形式。
        private static final int KAIPING = 1;
        //電影開始以前的廣告
        private static final int TIEPIAN = 2;
        //電影播放中途廣告
        private static final int TIEPIAN_MIDDLE = 4;
        //暫停視頻時候播放的廣告
        private static final int TIEPIAN_PAUSE = 8;
        //視頻播放完
        private static final int TIEPIAN_POST = 16;
    }
}

從上述類型的數字，咱們能夠看出是2的倍數，這是爲了使用位運算提高性能。

在com.sxzhongf.ad.index.adunit.AdUnitIndexObject中，咱們添加類型校驗方法：

public static boolean isAdSlotType(int adSlotType, int positionType) {
        switch (adSlotType) {
            case AdUnitConstants.PositionType.KAIPING:
                return isKaiPing(positionType);
            case AdUnitConstants.PositionType.TIEPIAN:
                return isTiePian(positionType);
            case AdUnitConstants.PositionType.TIEPIAN_MIDDLE:
                return isTiePianMiddle(positionType);
            case AdUnitConstants.PositionType.TIEPIAN_PAUSE:
                return isTiePianPause(positionType);
            case AdUnitConstants.PositionType.TIEPIAN_POST:
                return isTiePianPost(positionType);
            default:
                return false;
        }
    }

    /**
     * 與運算，低位取等，高位補零。
     * 若是 > 0，則爲開屏
     */
    private static boolean isKaiPing(int positionType) {
        return (positionType & AdUnitConstants.PositionType.KAIPING) > 0;
    }
    private static boolean isTiePianMiddle(int positionType) {
        return (positionType & AdUnitConstants.PositionType.TIEPIAN_MIDDLE) > 0;
    }

    private static boolean isTiePianPause(int positionType) {
        return (positionType & AdUnitConstants.PositionType.TIEPIAN_PAUSE) > 0;
    }

    private static boolean isTiePianPost(int positionType) {
        return (positionType & AdUnitConstants.PositionType.TIEPIAN_POST) > 0;
    }

    private static boolean isTiePian(int positionType) {
        return (positionType & AdUnitConstants.PositionType.TIEPIAN) > 0;
    }

無所如何，咱們都是須要根據positionType進行數據查詢過濾，咱們在以前的com.sxzhongf.ad.index.adunit.AdUnitIndexAwareImpl中添加2個方法來實現過濾:

/**
     * 過濾當前是否存在知足positionType的UnitIds
     */
    public Set<long> match(Integer positionType) {
        Set<long> adUnitIds = new HashSet&lt;&gt;();
        objectMap.forEach((k, v) -&gt; {
            if (AdUnitIndexObject.isAdSlotType(positionType, v.getPositionType())) {
                adUnitIds.add(k);
            }
        });
        return adUnitIds;
    }

    /**
     * 根據UnitIds查詢AdUnit list
     */
    public List<adunitindexobject> fetch(Collection<long> adUnitIds) {
        if (CollectionUtils.isEmpty(adUnitIds)) {
            return Collections.EMPTY_LIST;
        }
        List<adunitindexobject> result = new ArrayList&lt;&gt;();
        adUnitIds.forEach(id -&gt; {
            AdUnitIndexObject object = get(id);
            if (null == object) {
                log.error("AdUnitIndexObject does not found:{}", id);
                return;
            }
            result.add(object);
        });

        return result;
    }

• 實現Search服務接口

上述咱們準備了一系列的查詢方法，都是爲了根據流量類型查詢廣告單元信息，咱們如今開始實現咱們的查詢接口，查詢接口中，咱們能夠獲取到媒體方的請求對象信息，它帶有一系列查詢所須要的過濾參數：

/**
 * SearchImpl for 實現search 服務
 *
 * @author <a href="mailto:magicianisaac@gmail.com">Isaac.Zhang | 若初</a>
 */
@Service
@Slf4j
public class SearchImpl implements ISearch {
    @Override
    public SearchResponse fetchAds(SearchRequest request) {

        //獲取請求廣告位信息
        List<adslot> adSlotList = request.getRequestInfo().getAdSlots();

        //獲取三個Feature信息
        KeywordFeature keywordFeature = request.getFeatureInfo().getKeywordFeature();
        HobbyFeatrue hobbyFeatrue = request.getFeatureInfo().getHobbyFeatrue();
        DistrictFeature districtFeature = request.getFeatureInfo().getDistrictFeature();
        //Feature關係
        FeatureRelation featureRelation = request.getFeatureInfo().getRelation();


        //構造響應對象
        SearchResponse response = new SearchResponse();
        Map<string, list<searchresponse.creative>&gt; adSlotRelationAds = response.getAdSlotRelationAds();

        for (AdSlot adSlot : adSlotList) {
            Set<long> targetUnitIdSet;
            //根據流量類型從緩存中獲取 初始 廣告信息
            Set<long> adUnitIdSet = IndexDataTableUtils.of(
                    AdUnitIndexAwareImpl.class
            ).match(adSlot.getPositionType());
        }
        return null;
    }
}

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