节假日召回

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/recall/strategy/FestivalRecallStrategyV1.java

@@ -0,0 +1,103 @@
+package com.tzld.piaoquan.recommend.server.service.recall.strategy;
+
+import com.alibaba.fastjson.JSONObject;
+import com.google.common.collect.Lists;
+import com.tzld.piaoquan.recommend.server.model.Video;
+import com.tzld.piaoquan.recommend.server.service.filter.FilterParam;
+import com.tzld.piaoquan.recommend.server.service.filter.FilterResult;
+import com.tzld.piaoquan.recommend.server.service.filter.RegionFilterService;
+import com.tzld.piaoquan.recommend.server.service.recall.FilterParamFactory;
+import com.tzld.piaoquan.recommend.server.service.recall.RecallParam;
+import com.tzld.piaoquan.recommend.server.service.recall.RecallStrategy;
+import com.tzld.piaoquan.recommend.server.service.score.ScorerUtils;
+import com.tzld.piaoquan.recommend.server.service.score4recall.ScorerPipeline4Recall;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.lang3.tuple.Pair;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import java.util.*;
+
+/**
+ * @author zhangbo
+ */
+@Slf4j
+@Component
+public class FestivalRecallStrategyV1 implements RecallStrategy {
+    @Autowired
+    private RegionFilterService filterService;
+    @Override
+    public List<Video> recall(RecallParam param) {
+        // 1 获取省份key 放入参数map中
+        String provinceCn = param.getProvince();
+        if (provinceCn == null){
+            provinceCn = "中国";
+        }else{
+            provinceCn = provinceCn.replaceAll("省$", "");
+        }
+        Map<String, String> param4Model = new HashMap<>(1);
+        param4Model.put("region_province", provinceCn);
+        // 2 通过model拿到召回list
+        ScorerPipeline4Recall pipeline = ScorerUtils.getScorerPipeline4Recall("festival.conf");
+        List<List<Pair<Long, Double>>> results = pipeline.recall(param4Model);
+        List<Pair<Long, Double>> result = results.get(0);
+        for (int i=1; i<results.size(); ++i){
+            result.addAll(results.get(i));
+        }
+        Map<Long, Double> videoMap = new LinkedHashMap<>();
+        for (Pair<Long, Double> v: result){
+            videoMap.put(v.getLeft(), v.getRight());
+        }
+
+
+        long t1 = new Long(System.currentTimeMillis());
+        FilterParam filterParam = FilterParamFactory.create(param, Lists.newArrayList(videoMap.keySet()));
+        filterParam.setForceTruncation(10000);
+        filterParam.setConcurrent(true);
+        filterParam.setNotUsePreView(false);
+        FilterResult filterResult = filterService.filter(filterParam);
+        long t2 = new Long(System.currentTimeMillis());
+        JSONObject obj = new JSONObject();
+        obj.put("name", "RegionRealtimeRecallStrategyV1");
+        obj.put("filter_time", t2-t1);
+        obj.put("provinceCn", provinceCn);
+        obj.put("sizeOld", videoMap.size());
+        List<Video> videosResult = new ArrayList<>();
+        if (filterResult != null && CollectionUtils.isNotEmpty(filterResult.getVideoIds())) {
+            obj.put("sizeNew", filterResult.getVideoIds().size());
+            filterResult.getVideoIds().stream().forEach(vid -> {
+                Video video = new Video();
+                video.setVideoId(vid);
+                video.setAbCode(param.getAbCode());
+                video.setRovScore(videoMap.get(vid));
+                video.setPushFrom(pushFrom());
+                videosResult.add(video);
+            });
+        }
+        log.info(obj.toString());
+        Collections.sort(videosResult, Comparator.comparingDouble(o -> -o.getRovScore()));
+        return videosResult;
+    }
+    public static final String PUSH_FORM = "recall_strategy_festival";
+    @Override
+    public String pushFrom(){
+        return PUSH_FORM;
+    }
+
+
+    public static List<List<Long>> groupKeys(Map<Long, Double> videoMap, int groupSize) {
+        List<List<Long>> result = new ArrayList<>();
+        List<Long> keys = new ArrayList<>(videoMap.keySet());
+
+        int size = keys.size();
+        for (int i = 0; i < size; i += groupSize) {
+            int endIndex = Math.min(i + groupSize, size);
+            List<Long> group = keys.subList(i, endIndex);
+            result.add(group);
+        }
+
+        return result;
+    }
+
+}

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/score4recall/strategy/RegionRecallScorerFestival.java

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+package com.tzld.piaoquan.recommend.server.service.score4recall.strategy;
+
+import com.tzld.piaoquan.recommend.server.service.score.ScorerConfigInfo;
+import com.tzld.piaoquan.recommend.server.service.score4recall.AbstractScorer4Recall;
+import com.tzld.piaoquan.recommend.server.service.score4recall.model4recall.Model4RecallKeyValue;
+import org.apache.commons.lang3.tuple.Pair;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+
+public class RegionRecallScorerFestival extends AbstractScorer4Recall {
+
+    public RegionRecallScorerFestival(ScorerConfigInfo configInfo) {
+        super(configInfo);
+    }
+    @Override
+    public void loadModel() {
+        doLoadModel(Model4RecallKeyValue.class);
+    }
+
+    @Override
+    public List<Pair<Long, Double>> recall(Map<String, String> params){
+        // todo sunxiaoyi 这里要写实现功能 节假日 时效性
+        Model4RecallKeyValue model = (Model4RecallKeyValue) this.getModel();
+        String key = params.getOrDefault("region_province", "中国");
+        List<Pair<Long, Double>> lists = model.kv.getOrDefault(key, new ArrayList<>());
+        if (lists.isEmpty()){
+            lists = model.kv.getOrDefault("中国", new ArrayList<>());
+        }
+
+        return lists.subList(0, Math.min(100, lists.size()));
+    }
+
+
+}

recommend-server-service/src/main/resources/feeds_score_config_festival.conf

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+scorer-config = {
+  festival-score-config = {
+    scorer-name = "com.tzld.piaoquan.recommend.server.service.score4recall.strategy.RegionRecallScorerV1"
+    scorer-priority = 99
+    model-path = "alg_recall_file/05_festival.txt"
+  }
+}