fix: cap concurrent shadow planning

ruoyi-admin/src/main/java/com/ruoyi/algorithm/shadow/ShadowObservationGateway.java

@@ -5,6 +5,7 @@ import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;
 
 import java.util.Objects;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 @Component
 public class ShadowObservationGateway {
@@ -12,6 +13,7 @@ public class ShadowObservationGateway {
 
     private final ShadowObservationProperties properties;
     private final ShadowPlanningEngine engine;
+    private final AtomicBoolean planning = new AtomicBoolean();
 
     public ShadowObservationGateway(ShadowObservationProperties properties, ShadowPlanningEngine engine) {
         this.properties = Objects.requireNonNull(properties, "properties");
@@ -22,11 +24,16 @@ public class ShadowObservationGateway {
         if (!properties.isEnabled() || engine == null) {
             return InboundShadowObservation.empty();
         }
+        if (!planning.compareAndSet(false, true)) {
+            return InboundShadowObservation.empty();
+        }
         try {
             return engine.planInbound(taskNo, trayNo);
         } catch (RuntimeException exception) {
             LOG.warn("Shadow inbound planning failed open for task {}: {}", taskNo, exception.getMessage());
             return InboundShadowObservation.empty();
+        } finally {
+            planning.set(false);
         }
     }
 
@@ -34,12 +41,17 @@ public class ShadowObservationGateway {
         if (!properties.isEnabled() || engine == null) {
             return OutboundShadowObservation.empty();
         }
+        if (!planning.compareAndSet(false, true)) {
+            return OutboundShadowObservation.empty();
+        }
         try {
             return engine.planProjectOutbound(stockoutDetailId);
         } catch (RuntimeException exception) {
             LOG.warn("Shadow outbound planning failed open for detail {}: {}",
                     stockoutDetailId, exception.getMessage());
             return OutboundShadowObservation.empty();
+        } finally {
+            planning.set(false);
         }
     }
 
@@ -47,12 +59,17 @@ public class ShadowObservationGateway {
         if (!properties.isEnabled() || engine == null) {
             return OutboundShadowObservation.empty();
         }
+        if (!planning.compareAndSet(false, true)) {
+            return OutboundShadowObservation.empty();
+        }
         try {
             return engine.planExactStockOutbound(stockoutDetailId, stockId);
         } catch (RuntimeException exception) {
             LOG.warn("Shadow exact-stock planning failed open for detail {} stock {}: {}",
                     stockoutDetailId, stockId, exception.getMessage());
             return OutboundShadowObservation.empty();
+        } finally {
+            planning.set(false);
         }
     }