Add computed attributes priority

2 files changed, 15 insertions, 2 deletions

diff --git a/src/main/java/org/traccar/handler/ComputedAttributesHandler.java b/src/main/java/org/traccar/handler/ComputedAttributesHandler.java
index 7c2fd70a5..d286866a5 100644
--- a/src/main/java/org/traccar/handler/ComputedAttributesHandler.java
+++ b/src/main/java/org/traccar/handler/ComputedAttributesHandler.java
@@ -35,13 +35,14 @@ import org.traccar.session.cache.CacheManager;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.Arrays;
-import java.util.Collection;
 import java.util.Collections;
+import java.util.Comparator;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.Date;
+import java.util.stream.Collectors;
 
 public class ComputedAttributesHandler extends BasePositionHandler {
 
@@ -140,7 +141,9 @@ public class ComputedAttributesHandler extends BasePositionHandler {
 
     @Override
     public void handlePosition(Position position, Callback callback) {
-        Collection<Attribute> attributes = cacheManager.getDeviceObjects(position.getDeviceId(), Attribute.class);
+        var attributes = cacheManager.getDeviceObjects(position.getDeviceId(), Attribute.class).stream()
+                .sorted(Comparator.comparing(Attribute::getPriority).reversed())
+                .collect(Collectors.toUnmodifiableList());
         for (Attribute attribute : attributes) {
             if (attribute.getAttribute() != null) {
                 Object result = null;
diff --git a/src/main/java/org/traccar/model/Attribute.java b/src/main/java/org/traccar/model/Attribute.java
index 65f2e3881..573207170 100644
--- a/src/main/java/org/traccar/model/Attribute.java
+++ b/src/main/java/org/traccar/model/Attribute.java
@@ -61,4 +61,14 @@ public class Attribute extends BaseModel {
         this.type = type;
     }
 
+    private int priority;
+
+    public int getPriority() {
+        return priority;
+    }
+
+    public void setPriority(int priority) {
+        this.priority = priority;
+    }
+
 }