From 1c6d2b037844239b907adfe3882d2cc41a99a3d3 Mon Sep 17 00:00:00 2001
From: Junjie <fallin.jie@qq.com>
Date: 星期三, 06 五月 2026 17:18:16 +0800
Subject: [PATCH] #dfs

---
 src/main/java/com/zy/common/utils/NavigateUtils.java |  305 ++++++++++++++++++++++++++++++++++++++++++++------
 1 files changed, 267 insertions(+), 38 deletions(-)

diff --git a/src/main/java/com/zy/common/utils/NavigateUtils.java b/src/main/java/com/zy/common/utils/NavigateUtils.java
index 5614e6c..733a2ab 100644
--- a/src/main/java/com/zy/common/utils/NavigateUtils.java
+++ b/src/main/java/com/zy/common/utils/NavigateUtils.java
@@ -27,6 +27,8 @@
 import com.zy.asrs.service.StationCycleCapacityService;
 import com.zy.asrs.service.StationPathPolicyService;
 import com.zy.core.News;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.scheduling.annotation.Scheduled;
 import com.zy.core.model.StationObjModel;
 import com.zy.core.model.command.StationCommand;
 import com.zy.core.enums.StationCommandType;
@@ -52,6 +54,7 @@
 import java.util.LinkedHashMap;
 
 @Component
+@Slf4j
 public class NavigateUtils {
 
     private static final long STATION_PATH_SLOW_LOG_THRESHOLD_MS = 500L;
@@ -77,8 +80,23 @@
     @Autowired
     private StationTaskTraceRegistry stationTaskTraceRegistry;
 
-    private final Object runtimeSnapshotLock = new Object();
     private volatile CachedStationPathRuntimeSnapshot cachedRuntimeSnapshot;
+
+    private volatile CachedLoopMergeGuardContext cachedLoopMergeGuardContext;
+
+    @Scheduled(fixedDelay = 1500, initialDelay = 3000)
+    public void refreshStationPathCaches() {
+        try {
+            BaseRuntimeSnapshot snapshot = buildBaseRuntimeSnapshot(null);
+            cachedRuntimeSnapshot = new CachedStationPathRuntimeSnapshot(System.currentTimeMillis(), snapshot);
+        } catch (Exception ignore) {
+        }
+        try {
+            LoopMergeGuardContext context = buildLoopMergeGuardContext();
+            cachedLoopMergeGuardContext = new CachedLoopMergeGuardContext(System.currentTimeMillis(), context);
+        } catch (Exception ignore) {
+        }
+    }
 
     public List<NavigateNode> calcOptimalPathByStationId(Integer startStationId,
                                                          Integer endStationId,
@@ -95,29 +113,74 @@
                                                                  Integer endStationId,
                                                                  Integer currentTaskNo,
                                                                  Double pathLenFactor) {
-        StationPathResolvedPolicy resolvedPolicy = resolveStationPathPolicy(startStationId, endStationId);
-        StationPathRuntimeSnapshot runtimeSnapshot = loadStationPathRuntimeSnapshot(currentTaskNo);
-        StationPathSearchContext context = buildStationPathSearchContext(
-                startStationId,
-                endStationId,
-                resolvedPolicy,
-                StationPathCalcMode.REROUTE,
-                runtimeSnapshot
-        );
-        if (context.allList.isEmpty()) {
-            return new ArrayList<>();
-        }
+        long totalStartNs = System.nanoTime();
+        log.info("绔欑偣璺緞鍊欓�夎绠楀叆鍙o紝startStationId={}锛宔ndStationId={}锛宼askNo={}锛宲athLenFactor={}",
+                startStationId, endStationId, currentTaskNo, pathLenFactor);
+        try {
+            StationPathResolvedPolicy resolvedPolicy = resolveStationPathPolicy(startStationId, endStationId);
+            log.info("绔欑偣璺緞鍊欓�夌瓥鐣ヨВ鏋愬畬鎴愶紝startStationId={}锛宔ndStationId={}锛宼askNo={}锛宮atchedRule={}锛宺uleCode={}锛宲rofileCode={}锛宑ostMs={}",
+                    startStationId,
+                    endStationId,
+                    currentTaskNo,
+                    resolvedPolicy != null && resolvedPolicy.matchedRule(),
+                    resolvedPolicy == null || resolvedPolicy.getRuleEntity() == null ? null : resolvedPolicy.getRuleEntity().getRuleCode(),
+                    resolvedPolicy == null ? null : resolvedPolicy.getDefaultProfileCode(),
+                    elapsedMillis(totalStartNs));
+            StationPathRuntimeSnapshot runtimeSnapshot = loadStationPathRuntimeSnapshot(currentTaskNo);
+            List<NavigateNode> shortFallbackPath = buildRerouteShortFallbackPath(
+                    startStationId,
+                    endStationId,
+                    currentTaskNo,
+                    resolvedPolicy,
+                    runtimeSnapshot
+            );
+            StationPathSearchContext context = buildStationPathSearchContext(
+                    startStationId,
+                    endStationId,
+                    resolvedPolicy,
+                    StationPathCalcMode.REROUTE,
+                    runtimeSnapshot
+            );
+            if (context.allList.isEmpty()) {
+                List<List<NavigateNode>> fallbackCandidateList = normalizeCandidatePaths(Collections.singletonList(shortFallbackPath));
+                log.warn("绔欑偣璺緞鍊欓�夎绠楃粨鏉燂紝鍘熷洜=empty_search_context锛宻tartStationId={}锛宔ndStationId={}锛宼askNo={}锛宖allbackCandidateCount={}锛宖allbackPath={}锛宼otalCostMs={}",
+                        startStationId,
+                        endStationId,
+                        currentTaskNo,
+                        fallbackCandidateList.size(),
+                        JSON.toJSONString(extractStationIdList(shortFallbackPath)),
+                        elapsedMillis(totalStartNs));
+                return fallbackCandidateList;
+            }
 
-        List<List<NavigateNode>> orderedPathList = orderStationPathCandidates(
-                context.allList,
-                context.resolvedPolicy,
-                currentTaskNo,
-                pathLenFactor,
-                startStationId,
-                endStationId,
-                runtimeSnapshot
-        );
-        return normalizeCandidatePaths(orderedPathList);
+            long orderStartNs = System.nanoTime();
+            List<List<NavigateNode>> orderedPathList = orderStationPathCandidates(
+                    context.allList,
+                    context.resolvedPolicy,
+                    currentTaskNo,
+                    pathLenFactor,
+                    startStationId,
+                    endStationId,
+                    runtimeSnapshot
+            );
+            List<List<NavigateNode>> candidatePathList = appendShortFallbackCandidate(orderedPathList, shortFallbackPath);
+            List<List<NavigateNode>> normalizedPathList = normalizeCandidatePaths(candidatePathList);
+            log.info("绔欑偣璺緞鍊欓�夎绠楃粨鏉燂紝startStationId={}锛宔ndStationId={}锛宼askNo={}锛宺awCandidateCount={}锛宱rderedPathCount={}锛宖allbackPathLen={}锛宯ormalizedPathCount={}锛宱rderCostMs={}锛宼otalCostMs={}",
+                    startStationId,
+                    endStationId,
+                    currentTaskNo,
+                    context.allList.size(),
+                    orderedPathList == null ? null : orderedPathList.size(),
+                    shortFallbackPath == null ? 0 : shortFallbackPath.size(),
+                    normalizedPathList.size(),
+                    elapsedMillis(orderStartNs),
+                    elapsedMillis(totalStartNs));
+            return normalizedPathList;
+        } catch (Exception e) {
+            log.error("绔欑偣璺緞鍊欓�夎绠楀紓甯革紝startStationId={}锛宔ndStationId={}锛宼askNo={}锛宲athLenFactor={}锛宑ostMs={}",
+                    startStationId, endStationId, currentTaskNo, pathLenFactor, elapsedMillis(totalStartNs), e);
+            throw e;
+        }
     }
 
     public Map<Integer, Set<Integer>> loadUndirectedStationGraphSnapshot() {
@@ -397,6 +460,54 @@
             return new DirectPathSearchResult(degradedPath, includeWaypoint, false);
         }
         return DirectPathSearchResult.empty(includeWaypoint, includeSoftPreference);
+    }
+
+    private List<NavigateNode> buildRerouteShortFallbackPath(Integer startStationId,
+                                                             Integer endStationId,
+                                                             Integer currentTaskNo,
+                                                             StationPathResolvedPolicy resolvedPolicy,
+                                                             StationPathRuntimeSnapshot runtimeSnapshot) {
+        long startNs = System.nanoTime();
+        try {
+            List<NavigateNode> path = findStationDirectPath(
+                    startStationId,
+                    endStationId,
+                    currentTaskNo,
+                    0.0d,
+                    StationPathCalcMode.OPTIMAL,
+                    resolvedPolicy,
+                    runtimeSnapshot
+            );
+            List<NavigateNode> normalizedPath = normalizeStationPath(path);
+            log.info("绔欑偣璺緞鍫靛閲嶈鍒掔煭璺緞淇濆簳璁$畻瀹屾垚锛宻tartStationId={}锛宔ndStationId={}锛宼askNo={}锛宲athLen={}锛宲ath={}锛宑ostMs={}",
+                    startStationId,
+                    endStationId,
+                    currentTaskNo,
+                    normalizedPath.size(),
+                    JSON.toJSONString(extractStationIdList(normalizedPath)),
+                    elapsedMillis(startNs));
+            return normalizedPath;
+        } catch (Exception e) {
+            log.warn("绔欑偣璺緞鍫靛閲嶈鍒掔煭璺緞淇濆簳璁$畻澶辫触锛宻tartStationId={}锛宔ndStationId={}锛宼askNo={}锛宑ostMs={}锛宔rror={}",
+                    startStationId,
+                    endStationId,
+                    currentTaskNo,
+                    elapsedMillis(startNs),
+                    e.toString());
+            return new ArrayList<>();
+        }
+    }
+
+    private List<List<NavigateNode>> appendShortFallbackCandidate(List<List<NavigateNode>> orderedPathList,
+                                                                  List<NavigateNode> shortFallbackPath) {
+        List<List<NavigateNode>> candidatePathList = new ArrayList<>();
+        if (orderedPathList != null && !orderedPathList.isEmpty()) {
+            candidatePathList.addAll(orderedPathList);
+        }
+        if (shortFallbackPath != null && !shortFallbackPath.isEmpty()) {
+            candidatePathList.add(shortFallbackPath);
+        }
+        return candidatePathList;
     }
 
     private List<NavigateNode> searchDirectPath(DirectStationPathContext context,
@@ -1688,22 +1799,21 @@
             }
             return cachedSnapshot.baseRuntimeSnapshot.toCacheHitSnapshot();
         }
-        synchronized (runtimeSnapshotLock) {
-            cachedSnapshot = cachedRuntimeSnapshot;
-            if (cachedSnapshot != null && now - cachedSnapshot.cacheAtMs <= STATION_PATH_RUNTIME_SNAPSHOT_TTL_MS) {
-                if (stepCostMap != null) {
-                    stepCostMap.put("baseSnapshotCacheHit", 0L);
-                }
-                return cachedSnapshot.baseRuntimeSnapshot.toCacheHitSnapshot();
-            }
-            long stepStartNs = System.nanoTime();
-            BaseRuntimeSnapshot baseRuntimeSnapshot = buildBaseRuntimeSnapshot(stepCostMap);
+        // 缂撳瓨杩囨湡锛氱敤杩囨湡缂撳瓨鍏滃簳锛園Scheduled 瀹氭椂浠诲姟浼氬緢蹇埛鏂帮級锛岄伩鍏嶅绾跨▼闃诲
+        if (cachedSnapshot != null) {
             if (stepCostMap != null) {
-                stepCostMap.put("buildBaseSnapshot", elapsedMillis(stepStartNs));
+                stepCostMap.put("baseSnapshotStale", 0L);
             }
-            cachedRuntimeSnapshot = new CachedStationPathRuntimeSnapshot(System.currentTimeMillis(), baseRuntimeSnapshot);
-            return baseRuntimeSnapshot;
+            return cachedSnapshot.baseRuntimeSnapshot.toCacheHitSnapshot();
         }
+        // 鏋佺鎯呭喌锛氫粠鏈湁杩囩紦瀛橈紙鍚姩棣栨璋冪敤锛夛紝鍚屾鏋勫缓
+        long stepStartNs = System.nanoTime();
+        BaseRuntimeSnapshot baseRuntimeSnapshot = buildBaseRuntimeSnapshot(stepCostMap);
+        if (stepCostMap != null) {
+            stepCostMap.put("buildBaseSnapshot", elapsedMillis(stepStartNs));
+        }
+        cachedRuntimeSnapshot = new CachedStationPathRuntimeSnapshot(System.currentTimeMillis(), baseRuntimeSnapshot);
+        return baseRuntimeSnapshot;
     }
 
     private BaseRuntimeSnapshot buildBaseRuntimeSnapshot(Map<String, Long> stepCostMap) {
@@ -1766,6 +1876,22 @@
     }
 
     private LoopMergeGuardContext loadLoopMergeGuardContext() {
+        long now = System.currentTimeMillis();
+        CachedLoopMergeGuardContext cached = cachedLoopMergeGuardContext;
+        if (cached != null && now - cached.cacheAtMs <= STATION_PATH_RUNTIME_SNAPSHOT_TTL_MS) {
+            return new LoopMergeGuardContext(cached.context);
+        }
+        // 缂撳瓨杩囨湡锛氱敤杩囨湡缂撳瓨鍏滃簳锛園Scheduled 瀹氭椂浠诲姟浼氬緢蹇埛鏂帮級
+        if (cached != null) {
+            return new LoopMergeGuardContext(cached.context);
+        }
+        // 鏋佺鎯呭喌锛氫粠鏈湁杩囩紦瀛橈紝鍚屾鏋勫缓
+        LoopMergeGuardContext context = buildLoopMergeGuardContext();
+        cachedLoopMergeGuardContext = new CachedLoopMergeGuardContext(System.currentTimeMillis(), context);
+        return new LoopMergeGuardContext(context);
+    }
+
+    private LoopMergeGuardContext buildLoopMergeGuardContext() {
         LoopMergeGuardContext context = new LoopMergeGuardContext();
         try {
             if (stationCycleCapacityService == null) {
@@ -2165,7 +2291,7 @@
             }
         }
         long stepStartNs = System.nanoTime();
-        Map<Integer, StationTaskTraceVo> fallbackTraceMap = loadFallbackActiveTraceMap(null, statusMap, traceMap.keySet());
+        Map<Integer, StationTaskTraceVo> fallbackTraceMap = buildProtocolFallbackTraceMap(statusMap, traceMap.keySet());
         if (stepCostMap != null) {
             stepCostMap.put("loadFallbackTraces", elapsedMillis(stepStartNs));
         }
@@ -2183,6 +2309,55 @@
         return StationTaskTraceRegistry.STATUS_WAITING.equals(status)
                 || StationTaskTraceRegistry.STATUS_RUNNING.equals(status)
                 || StationTaskTraceRegistry.STATUS_REROUTED.equals(status);
+    }
+
+    private Map<Integer, StationTaskTraceVo> buildProtocolFallbackTraceMap(Map<Integer, StationProtocol> statusMap,
+                                                                            Set<Integer> existingTaskNoSet) {
+        if (statusMap == null || statusMap.isEmpty()) {
+            return Collections.emptyMap();
+        }
+        Map<Integer, StationTaskTraceVo> result = new LinkedHashMap<>();
+        for (StationProtocol protocol : statusMap.values()) {
+            if (protocol == null || protocol.getTaskNo() == null || protocol.getTaskNo() <= 0) {
+                continue;
+            }
+            if (!Boolean.TRUE.equals(protocol.isLoading())) {
+                continue;
+            }
+            if (existingTaskNoSet != null && existingTaskNoSet.contains(protocol.getTaskNo())) {
+                continue;
+            }
+            Integer stationId = protocol.getStationId();
+            Integer targetStaNo = protocol.getTargetStaNo();
+            if (stationId == null || targetStaNo == null || stationId.equals(targetStaNo)) {
+                continue;
+            }
+            List<Integer> path = new ArrayList<>();
+            path.add(stationId);
+            path.add(targetStaNo);
+            List<Integer> pendingStationIds = new ArrayList<>();
+            pendingStationIds.add(targetStaNo);
+            StationTaskTraceVo vo = new StationTaskTraceVo();
+            vo.setTaskNo(protocol.getTaskNo());
+            vo.setThreadImpl("PROTOCOL_FALLBACK");
+            vo.setStatus(StationTaskTraceRegistry.STATUS_RUNNING);
+            vo.setTraceVersion(1);
+            vo.setStartStationId(stationId);
+            vo.setCurrentStationId(stationId);
+            vo.setFinalTargetStationId(targetStaNo);
+            vo.setFullPathStationIds(path);
+            vo.setIssuedStationIds(path);
+            vo.setPassedStationIds(Collections.emptyList());
+            vo.setPendingStationIds(pendingStationIds);
+            vo.setLatestIssuedSegmentPath(path);
+            vo.setSegmentList(Collections.emptyList());
+            vo.setIssuedSegmentCount(0);
+            vo.setTotalSegmentCount(1);
+            vo.setUpdatedAt(System.currentTimeMillis());
+            vo.setEvents(Collections.emptyList());
+            result.put(protocol.getTaskNo(), vo);
+        }
+        return result;
     }
 
     private Map<Integer, StationTaskTraceVo> loadFallbackActiveTraceMap(Integer currentTaskNo,
@@ -2605,6 +2780,8 @@
         }
         Integer lev = startStation.getStationLev();
         stepCostMap.put("loadStartStation", elapsedMillis(stepStartNs));
+        log.info("绔欑偣璺緞鎼滅储涓婁笅鏂囧姞杞借捣鐐瑰畬鎴愶紝startStationId={}锛宔ndStationId={}锛宮ode={}锛宭ev={}锛宑ostMs={}",
+                startStationId, endStationId, calcMode, lev, stepCostMap.get("loadStartStation"));
 
         stepStartNs = System.nanoTime();
         NavigateSolution navigateSolution = new NavigateSolution();
@@ -2621,6 +2798,16 @@
             throw new CoolException("鏈壘鍒拌 缁堢偣 瀵瑰簲鐨勮妭鐐�");
         }
         stepCostMap.put("loadStationMapAndNode", elapsedMillis(stepStartNs));
+        log.info("绔欑偣璺緞鎼滅储涓婁笅鏂囧姞杞藉湴鍥惧畬鎴愶紝startStationId={}锛宔ndStationId={}锛宮ode={}锛宮apRows={}锛宻tartNode=({},{})锛宔ndNode=({},{})锛宑ostMs={}",
+                startStationId,
+                endStationId,
+                calcMode,
+                stationMap.size(),
+                startNode.getX(),
+                startNode.getY(),
+                endNode.getX(),
+                endNode.getY(),
+                stepCostMap.get("loadStationMapAndNode"));
 
         stepStartNs = System.nanoTime();
         StationPathProfileConfig profileConfig = resolvedPolicy.getProfileConfig() == null
@@ -2634,9 +2821,17 @@
                 endStationId,
                 calcMode == null ? "" : calcMode.name());
         int calcMaxDepth = safeInt(profileConfig.getCalcMaxDepth(), 120);
-        int calcMaxPaths = safeInt(profileConfig.getCalcMaxPaths(), 500);
+        int calcMaxPaths = safeInt(profileConfig.getCalcMaxPaths(), 50);
         int calcMaxCost = safeInt(profileConfig.getCalcMaxCost(), 300);
         List<Integer> guideStationSequence = buildGuideStationSequence(startStationId, endStationId, resolvedPolicy.getRuleConfig());
+        log.info("绔欑偣璺緞鍊欓�夋灇涓惧紑濮嬶紝startStationId={}锛宔ndStationId={}锛宮ode={}锛宑alcMaxDepth={}锛宑alcMaxPaths={}锛宑alcMaxCost={}锛実uideStationSequence={}",
+                startStationId,
+                endStationId,
+                calcMode,
+                calcMaxDepth,
+                calcMaxPaths,
+                calcMaxCost,
+                JSON.toJSONString(guideStationSequence));
         stepStartNs = System.nanoTime();
         List<List<NavigateNode>> allList = navigateSolution.allSimplePaths(
                 stationMap,
@@ -2649,6 +2844,12 @@
         );
         stepCostMap.put("allSimplePaths", elapsedMillis(stepStartNs));
         rawCandidateCount = allList.size();
+        log.info("绔欑偣璺緞鍊欓�夋灇涓惧畬鎴愶紝startStationId={}锛宔ndStationId={}锛宮ode={}锛宺awCandidateCount={}锛宑ostMs={}",
+                startStationId,
+                endStationId,
+                calcMode,
+                rawCandidateCount,
+                stepCostMap.get("allSimplePaths"));
         if (allList.isEmpty()) {
             logStationPathSearchContextSlow(startStationId, endStationId, calcMode, lev, rawCandidateCount, filteredCandidateCount, stepCostMap, totalStartNs);
             return StationPathSearchContext.empty(resolvedPolicy);
@@ -2658,6 +2859,14 @@
         allList = filterNonAutoStationPaths(allList, statusMap);
         stepCostMap.put("filterNonAutoStation", elapsedMillis(stepStartNs));
         filteredCandidateCount = allList.size();
+        log.info("绔欑偣璺緞鍊欓�夎嚜鍔ㄧ姸鎬佽繃婊ゅ畬鎴愶紝startStationId={}锛宔ndStationId={}锛宮ode={}锛宺awCandidateCount={}锛宖ilteredCandidateCount={}锛宻tatusCount={}锛宑ostMs={}",
+                startStationId,
+                endStationId,
+                calcMode,
+                rawCandidateCount,
+                filteredCandidateCount,
+                statusMap.size(),
+                stepCostMap.get("filterNonAutoStation"));
         if (allList.isEmpty()) {
             News.info("[WCS Debug] 绔欑偣璺緞鍊欓�夊叏閮ㄨ杩囨护锛屽瓨鍦ㄩ潪鑷姩绔欑偣,startStationId={},endStationId={}", startStationId, endStationId);
             logStationPathSearchContextSlow(startStationId, endStationId, calcMode, lev, rawCandidateCount, filteredCandidateCount, stepCostMap, totalStartNs);
@@ -3034,6 +3243,16 @@
         }
     }
 
+    private static class CachedLoopMergeGuardContext {
+        private final long cacheAtMs;
+        private final LoopMergeGuardContext context;
+
+        private CachedLoopMergeGuardContext(long cacheAtMs, LoopMergeGuardContext context) {
+            this.cacheAtMs = cacheAtMs;
+            this.context = context;
+        }
+    }
+
     private static class PathCandidateMetrics {
         private List<NavigateNode> path;
         private int pathLen;
@@ -3087,6 +3306,16 @@
     private static class LoopMergeGuardContext {
         private final Set<Integer> loopStationIdSet = new HashSet<>();
         private final Map<Integer, Set<Integer>> loopNeighborMap = new HashMap<>();
+
+        private LoopMergeGuardContext() {
+        }
+
+        private LoopMergeGuardContext(LoopMergeGuardContext source) {
+            this.loopStationIdSet.addAll(source.loopStationIdSet);
+            for (Map.Entry<Integer, Set<Integer>> entry : source.loopNeighborMap.entrySet()) {
+                this.loopNeighborMap.put(entry.getKey(), new LinkedHashSet<>(entry.getValue()));
+            }
+        }
     }
 
     private static class LoopMergeEntry {

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