From cb1672bfd82f1666f0a9480a6458eac2fabcfa9a Mon Sep 17 00:00:00 2001
From: Junjie <fallin.jie@qq.com>
Date: 星期五, 20 三月 2026 20:12:41 +0800
Subject: [PATCH] #
---
src/main/java/com/zy/common/utils/NavigateUtils.java | 133 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 131 insertions(+), 2 deletions(-)
diff --git a/src/main/java/com/zy/common/utils/NavigateUtils.java b/src/main/java/com/zy/common/utils/NavigateUtils.java
index b3b87dc..11ec85c 100644
--- a/src/main/java/com/zy/common/utils/NavigateUtils.java
+++ b/src/main/java/com/zy/common/utils/NavigateUtils.java
@@ -330,6 +330,7 @@
Map<Integer, Double> stationLoopLoadMap = loadStationLoopLoadMap();
StationTrafficSnapshot trafficSnapshot = loadStationTrafficSnapshot(statusMap, currentTaskNo);
LoopMergeGuardContext loopMergeGuardContext = loadLoopMergeGuardContext();
+ Set<LoopMergeEntry> mandatoryLoopMergeEntrySet = resolveMandatoryLoopMergeEntrySet(filteredCandidates, loopMergeGuardContext);
Set<Integer> outStationIdSet = loadAllOutStationIdSet();
List<PathCandidateMetrics> metricsList = new ArrayList<>();
int skippedByOtherOutStation = 0;
@@ -338,7 +339,7 @@
if (path == null || path.isEmpty()) {
continue;
}
- if (!isLoopMergePathAllowed(path, statusMap, trafficSnapshot, loopMergeGuardContext)) {
+ if (!isLoopMergePathAllowed(path, statusMap, trafficSnapshot, loopMergeGuardContext, mandatoryLoopMergeEntrySet)) {
skippedByLoopMergeGuard++;
continue;
}
@@ -989,6 +990,51 @@
return context;
}
+ private Set<LoopMergeEntry> resolveMandatoryLoopMergeEntrySet(List<List<NavigateNode>> candidatePathList,
+ LoopMergeGuardContext loopMergeGuardContext) {
+ if (candidatePathList == null || candidatePathList.isEmpty()
+ || loopMergeGuardContext == null || loopMergeGuardContext.loopStationIdSet.isEmpty()) {
+ return Collections.emptySet();
+ }
+
+ Set<LoopMergeEntry> intersectionSet = null;
+ for (List<NavigateNode> path : candidatePathList) {
+ Set<LoopMergeEntry> entrySet = extractLoopMergeEntrySet(path, loopMergeGuardContext);
+ if (intersectionSet == null) {
+ intersectionSet = new HashSet<>(entrySet);
+ } else {
+ intersectionSet.retainAll(entrySet);
+ }
+ if (intersectionSet.isEmpty()) {
+ return Collections.emptySet();
+ }
+ }
+ return intersectionSet == null ? Collections.emptySet() : intersectionSet;
+ }
+
+ private Set<LoopMergeEntry> extractLoopMergeEntrySet(List<NavigateNode> path,
+ LoopMergeGuardContext loopMergeGuardContext) {
+ Set<LoopMergeEntry> result = new HashSet<>();
+ if (path == null || path.size() < 2 || loopMergeGuardContext == null || loopMergeGuardContext.loopStationIdSet.isEmpty()) {
+ return result;
+ }
+
+ List<Integer> stationIdList = extractStationIdList(path);
+ for (int i = 1; i < stationIdList.size(); i++) {
+ Integer prevStationId = stationIdList.get(i - 1);
+ Integer currentStationId = stationIdList.get(i);
+ if (prevStationId == null || currentStationId == null) {
+ continue;
+ }
+ if (loopMergeGuardContext.loopStationIdSet.contains(prevStationId)
+ || !loopMergeGuardContext.loopStationIdSet.contains(currentStationId)) {
+ continue;
+ }
+ result.add(new LoopMergeEntry(prevStationId, currentStationId));
+ }
+ return result;
+ }
+
private Map<Integer, Set<Integer>> loadUndirectedStationGraph() {
Map<Integer, Set<Integer>> graph = new HashMap<>();
List<Integer> levList = loadStationLevList();
@@ -1148,7 +1194,8 @@
private boolean isLoopMergePathAllowed(List<NavigateNode> path,
Map<Integer, StationProtocol> statusMap,
StationTrafficSnapshot trafficSnapshot,
- LoopMergeGuardContext loopMergeGuardContext) {
+ LoopMergeGuardContext loopMergeGuardContext,
+ Set<LoopMergeEntry> mandatoryLoopMergeEntrySet) {
if (path == null || path.size() < 2 || loopMergeGuardContext == null || loopMergeGuardContext.loopStationIdSet.isEmpty()) {
return true;
}
@@ -1174,13 +1221,65 @@
continue;
}
+ LoopMergeEntry currentEntry = new LoopMergeEntry(prevStationId, currentStationId);
for (Integer trunkNeighborStationId : trunkNeighborSet) {
if (isStationOccupiedForLoopMerge(trunkNeighborStationId, statusMap, trafficSnapshot)) {
return false;
}
}
+ boolean mandatoryEntry = mandatoryLoopMergeEntrySet != null && mandatoryLoopMergeEntrySet.contains(currentEntry);
+ if (!mandatoryEntry && !isLoopTrunkVeryIdle(currentStationId, loopMergeGuardContext, statusMap, trafficSnapshot)) {
+ return false;
+ }
}
return true;
+ }
+
+ private boolean isLoopTrunkVeryIdle(Integer mergeStationId,
+ LoopMergeGuardContext loopMergeGuardContext,
+ Map<Integer, StationProtocol> statusMap,
+ StationTrafficSnapshot trafficSnapshot) {
+ if (mergeStationId == null || loopMergeGuardContext == null) {
+ return false;
+ }
+ Set<Integer> guardStationIdSet = collectLoopNeighborWindow(mergeStationId, loopMergeGuardContext, 2);
+ if (guardStationIdSet.isEmpty()) {
+ return false;
+ }
+ for (Integer stationId : guardStationIdSet) {
+ if (isStationOccupiedForLoopMerge(stationId, statusMap, trafficSnapshot)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ private Set<Integer> collectLoopNeighborWindow(Integer centerStationId,
+ LoopMergeGuardContext loopMergeGuardContext,
+ int depth) {
+ Set<Integer> visited = new LinkedHashSet<>();
+ if (centerStationId == null || depth < 0 || loopMergeGuardContext == null) {
+ return visited;
+ }
+
+ Set<Integer> frontier = new LinkedHashSet<>();
+ frontier.add(centerStationId);
+ visited.add(centerStationId);
+ for (int step = 0; step < depth; step++) {
+ Set<Integer> nextFrontier = new LinkedHashSet<>();
+ for (Integer stationId : frontier) {
+ for (Integer neighborStationId : loopMergeGuardContext.loopNeighborMap.getOrDefault(stationId, Collections.emptySet())) {
+ if (neighborStationId != null && visited.add(neighborStationId)) {
+ nextFrontier.add(neighborStationId);
+ }
+ }
+ }
+ if (nextFrontier.isEmpty()) {
+ break;
+ }
+ frontier = nextFrontier;
+ }
+ return visited;
}
private boolean isStationOccupiedForLoopMerge(Integer stationId,
@@ -1715,6 +1814,36 @@
private final Map<Integer, Set<Integer>> loopNeighborMap = new HashMap<>();
}
+ private static class LoopMergeEntry {
+ private final Integer fromStationId;
+ private final Integer toStationId;
+
+ private LoopMergeEntry(Integer fromStationId, Integer toStationId) {
+ this.fromStationId = fromStationId;
+ this.toStationId = toStationId;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (!(obj instanceof LoopMergeEntry)) {
+ return false;
+ }
+ LoopMergeEntry other = (LoopMergeEntry) obj;
+ return (fromStationId == null ? other.fromStationId == null : fromStationId.equals(other.fromStationId))
+ && (toStationId == null ? other.toStationId == null : toStationId.equals(other.toStationId));
+ }
+
+ @Override
+ public int hashCode() {
+ int result = fromStationId == null ? 0 : fromStationId.hashCode();
+ result = 31 * result + (toStationId == null ? 0 : toStationId.hashCode());
+ return result;
+ }
+ }
+
private static class PathGlobalPolicy {
private double lenWeightFactor = 1.0d;
private double congWeightFactor = 1.0d;
--
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