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/core/thread/impl/v5/StationV5RunBlockReroutePlanner.java |   54 ++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 files changed, 50 insertions(+), 4 deletions(-)

diff --git a/src/main/java/com/zy/core/thread/impl/v5/StationV5RunBlockReroutePlanner.java b/src/main/java/com/zy/core/thread/impl/v5/StationV5RunBlockReroutePlanner.java
index 5c1d3c3..7ce54c6 100644
--- a/src/main/java/com/zy/core/thread/impl/v5/StationV5RunBlockReroutePlanner.java
+++ b/src/main/java/com/zy/core/thread/impl/v5/StationV5RunBlockReroutePlanner.java
@@ -3,6 +3,7 @@
 import com.alibaba.fastjson.JSON;
 import com.core.common.Cools;
 import com.zy.common.utils.RedisUtil;
+import com.zy.core.News;
 import com.zy.core.enums.RedisKeyType;
 import com.zy.core.model.command.StationCommand;
 import com.zy.core.service.StationTaskLoopService;
@@ -19,6 +20,7 @@
 
     private static final int RUN_BLOCK_REROUTE_STATE_EXPIRE_SECONDS = 60 * 60 * 24;
     private static final int SHORT_PATH_REPEAT_AVOID_THRESHOLD = 2;
+    private static final int PLANNER_RESET_PLAN_COUNT_THRESHOLD = 20;
 
     private final RedisUtil redisUtil;
 
@@ -34,11 +36,34 @@
         rerouteState.setTaskNo(taskNo);
         rerouteState.setBlockStationId(blockStationId);
         rerouteState.setPlanCount((rerouteState.getPlanCount() == null ? 0 : rerouteState.getPlanCount()) + 1);
+        int currentPlanCount = rerouteState.getPlanCount() == null ? 0 : rerouteState.getPlanCount();
+        boolean resetForPlanCountLimit = rerouteState.getPlanCount() > PLANNER_RESET_PLAN_COUNT_THRESHOLD;
+        if (resetForPlanCountLimit) {
+            rerouteState.resetPlanner();
+            rerouteState.setTaskNo(taskNo);
+            rerouteState.setBlockStationId(blockStationId);
+            rerouteState.setPlanCount(1);
+            News.info("杈撻�佺嚎鍫靛閲嶈鍒抪lanner绱瓒呰繃闃堝�硷紝宸叉竻绌鸿矾绾胯蹇嗗苟浠庢渶鐭矾绾块噸鏂伴�夋嫨锛宼askNo={}锛宐lockStationId={}锛宲lanCount={}锛宼hreshold={}",
+                    taskNo,
+                    blockStationId,
+                    currentPlanCount,
+                    PLANNER_RESET_PLAN_COUNT_THRESHOLD);
+        }
 
-        StationCommand rerouteCommand = selectAvailableRerouteCommand(rerouteState, loopEvaluation, candidateCommands);
+        StationCommand rerouteCommand = selectAvailableRerouteCommand(
+                rerouteState,
+                loopEvaluation,
+                candidateCommands,
+                resetForPlanCountLimit
+        );
         if (rerouteCommand == null && candidateCommands != null && !candidateCommands.isEmpty()) {
             rerouteState.resetIssuedRoutes();
-            rerouteCommand = selectAvailableRerouteCommand(rerouteState, loopEvaluation, candidateCommands);
+            rerouteCommand = selectAvailableRerouteCommand(
+                    rerouteState,
+                    loopEvaluation,
+                    candidateCommands,
+                    resetForPlanCountLimit
+            );
         }
 
         saveRunBlockRerouteState(rerouteState);
@@ -51,7 +76,8 @@
 
     private StationCommand selectAvailableRerouteCommand(RunBlockRerouteState rerouteState,
                                                          StationTaskLoopService.LoopEvaluation loopEvaluation,
-                                                         List<StationCommand> candidateCommands) {
+                                                         List<StationCommand> candidateCommands,
+                                                         boolean preferShortestPath) {
         if (rerouteState == null || candidateCommands == null || candidateCommands.isEmpty()) {
             return null;
         }
@@ -90,7 +116,9 @@
             return null;
         }
 
-        List<RerouteCandidateCommand> orderedCandidateCommandList = reorderCandidateCommandsForLoopRelease(candidateCommandList);
+        List<RerouteCandidateCommand> orderedCandidateCommandList = preferShortestPath
+                ? reorderCandidateCommandsByShortestPath(candidateCommandList)
+                : reorderCandidateCommandsForLoopRelease(candidateCommandList);
         for (RerouteCandidateCommand candidateCommand : orderedCandidateCommandList) {
             if (candidateCommand == null || candidateCommand.getCommand() == null) {
                 continue;
@@ -110,6 +138,19 @@
             return rerouteCommand;
         }
         return null;
+    }
+
+    private List<RerouteCandidateCommand> reorderCandidateCommandsByShortestPath(List<RerouteCandidateCommand> candidateCommandList) {
+        if (candidateCommandList == null || candidateCommandList.isEmpty()) {
+            return new ArrayList<>();
+        }
+        List<RerouteCandidateCommand> reorderedList = new ArrayList<>(candidateCommandList);
+        reorderedList.sort((left, right) -> {
+            int leftPathLength = left == null || left.getPathLength() == null ? Integer.MAX_VALUE : left.getPathLength();
+            int rightPathLength = right == null || right.getPathLength() == null ? Integer.MAX_VALUE : right.getPathLength();
+            return Integer.compare(leftPathLength, rightPathLength);
+        });
+        return reorderedList;
     }
 
     private List<RerouteCandidateCommand> reorderCandidateCommandsForLoopRelease(List<RerouteCandidateCommand> candidateCommandList) {
@@ -344,6 +385,11 @@
             this.issuedRouteSignatureSet = new LinkedHashSet<>();
         }
 
+        private void resetPlanner() {
+            resetIssuedRoutes();
+            this.routeIssueCountMap = new HashMap<>();
+        }
+
         private static String buildPathSignatureText(List<Integer> routePath) {
             if (routePath == null || routePath.isEmpty()) {
                 return "";

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