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@@ -0,0 +1,159 @@
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+package com.tzld.piaoquan.recommend.server.service.score;
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+
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+
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+import com.tzld.piaoquan.recommend.feature.domain.video.base.UserFeature;
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+import com.tzld.piaoquan.recommend.server.common.base.RankItem;
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+import com.tzld.piaoquan.recommend.server.service.score.model.FMModel;
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+import com.tzld.piaoquan.recommend.server.util.JSONUtils;
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+import org.apache.commons.collections4.CollectionUtils;
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+import org.apache.commons.collections4.MapUtils;
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+import org.apache.commons.lang.exception.ExceptionUtils;
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+import org.slf4j.Logger;
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+import org.slf4j.LoggerFactory;
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+
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+import java.util.*;
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+import java.util.concurrent.*;
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+
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+
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+public class VlogRovFMScorer extends BaseLRV2ModelScorer {
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+
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+ private static final int LOCAL_TIME_OUT = 150;
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+ private final static Logger LOGGER = LoggerFactory.getLogger(VlogRovFMScorer.class);
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+ private static final ExecutorService executorService = Executors.newFixedThreadPool(128);
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+
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+
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+ public VlogRovFMScorer(ScorerConfigInfo configInfo) {
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+ super(configInfo);
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+ }
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+
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+ @Override
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+ public List<RankItem> scoring(final ScoreParam param,
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+ final UserFeature userFeature,
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+ final List<RankItem> rankItems) {
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+ throw new NoSuchMethodError();
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+ }
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+
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+ @Override
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+ public List<RankItem> scoring(final Map<String, String> sceneFeatureMap,
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+ final Map<String, String> userFeatureMap,
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+ final List<RankItem> rankItems) {
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+ if (CollectionUtils.isEmpty(rankItems)) {
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+ return rankItems;
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+ }
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+
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+ long startTime = System.currentTimeMillis();
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+ FMModel model = (FMModel) this.getModel();
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+ LOGGER.debug("model size: [{}]", model.getModelSize());
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+
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+ List<RankItem> result = rankItems;
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+ result = rankByJava(
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+ sceneFeatureMap, userFeatureMap, rankItems
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+ );
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+
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+ LOGGER.debug("ctr ranker time java items size={}, time={} ", result != null ? result.size() : 0,
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+ System.currentTimeMillis() - startTime);
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+
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+ return result;
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+ }
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+
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+ private List<RankItem> rankByJava(final Map<String, String> sceneFeatureMap,
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+ final Map<String, String> userFeatureMap,
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+ final List<RankItem> items) {
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+ long startTime = System.currentTimeMillis();
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+ FMModel model = (FMModel) this.getModel();
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+ LOGGER.debug("model size: [{}]", model.getModelSize());
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+
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+ // 所有都参与打分，按照ctr排序
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+ multipleCtrScore(items, userFeatureMap, sceneFeatureMap, model);
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+
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+ // debug log
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+ if (LOGGER.isDebugEnabled()) {
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+ for (int i = 0; i < items.size(); i++) {
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+ LOGGER.debug("before enter feeds model predict ctr score [{}] [{}]", items.get(i), items.get(i));
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+ }
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+ }
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+
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+ Collections.sort(items);
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+
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+ LOGGER.debug("ctr ranker java execute time: [{}]", System.currentTimeMillis() - startTime);
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+ LOGGER.debug("[ctr ranker time java] items size={}, cost={} ", items != null ? items.size() : 0,
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+ System.currentTimeMillis() - startTime);
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+ return items;
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+ }
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+
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+ private void multipleCtrScore(final List<RankItem> items,
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+ final Map<String, String> userFeatureMap,
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+ final Map<String, String> sceneFeatureMap,
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+ final FMModel model) {
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+
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+ List<Callable<Object>> calls = new ArrayList<Callable<Object>>();
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+ for (int index = 0; index < items.size(); index++) {
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+ final int fIndex = index;
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+ calls.add(new Callable<Object>() {
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+ @Override
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+ public Object call() throws Exception {
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+ try {
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+ calcScore(model, items.get(fIndex), userFeatureMap, sceneFeatureMap);
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+ } catch (Exception e) {
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+ LOGGER.error("ctr exception: [{}] [{}]", items.get(fIndex).videoId, ExceptionUtils.getFullStackTrace(e));
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+ }
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+ return new Object();
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+ }
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+ });
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+ }
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+
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+ List<Future<Object>> futures = null;
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+ try {
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+ futures = executorService.invokeAll(calls, LOCAL_TIME_OUT, TimeUnit.MILLISECONDS);
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+ } catch (InterruptedException e) {
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+ LOGGER.error("execute invoke fail: {}", ExceptionUtils.getFullStackTrace(e));
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+ }
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+
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+ //等待所有请求的结果返回, 超时也返回
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+ int cancel = 0;
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+ if (futures != null) {
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+ for (Future<Object> future : futures) {
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+ try {
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+ if (!future.isDone() || future.isCancelled() || future.get() == null) {
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+ cancel++;
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+ }
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+ } catch (InterruptedException e) {
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+ LOGGER.error("InterruptedException {},{}", ExceptionUtils.getFullStackTrace(e));
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+ } catch (ExecutionException e) {
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+ LOGGER.error("ExecutionException {},{}", sceneFeatureMap.size(),
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+ ExceptionUtils.getFullStackTrace(e));
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+ }
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+ }
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+ }
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+ }
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+
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+ public double calcScore(final FMModel model,
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+ final RankItem item,
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+ final Map<String, String> userFeatureMap,
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+ final Map<String, String> sceneFeatureMap) {
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+
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+
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+ Map<String, String> featureMap = new HashMap<>();
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+ if (MapUtils.isNotEmpty(item.getFeatureMap())) {
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+ featureMap.putAll(item.getFeatureMap());
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+ }
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+ if (MapUtils.isNotEmpty(userFeatureMap)) {
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+ featureMap.putAll(userFeatureMap);
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+ }
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+ if (MapUtils.isNotEmpty(sceneFeatureMap)) {
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+ featureMap.putAll(sceneFeatureMap);
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+ }
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+
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+ double pro = 0.0;
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+ if (MapUtils.isNotEmpty(featureMap)) {
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+ try {
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+ pro = model.score(featureMap);
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+ LOGGER.info("fea : {}, score:{}", JSONUtils.toJson(featureMap), pro);
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+ } catch (Exception e) {
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+ LOGGER.error("score error for doc={} exception={}", item.getVideoId(), ExceptionUtils.getFullStackTrace(e));
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+ }
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+ }
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+ item.setScoreRov(pro);
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+ return pro;
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+ }
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+}
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