Implement computed attributes

1 files changed, 37 insertions, 0 deletions

diff --git a/test/org/traccar/processing/ComputedAttributesTest.java b/test/org/traccar/processing/ComputedAttributesTest.java
new file mode 100644
index 000000000..432f1b9ad
--- /dev/null
+++ b/test/org/traccar/processing/ComputedAttributesTest.java
@@ -0,0 +1,37 @@
+package org.traccar.processing;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.traccar.model.Attribute;
+import org.traccar.model.Position;
+
+public class ComputedAttributesTest {
+    
+    @Test
+    public void testComputedAttributes() {
+        Position position = new Position();
+        ComputedAttributesHandler computedAttributesHandler = new ComputedAttributesHandler();
+        position.set("adc1", 128);
+        position.set("booleanFlag", true);
+        position.set("adc2", 100);
+        position.set("bitFlag", 7);
+        position.set("event", 42);
+        Attribute attribute = new Attribute();
+
+        attribute.setExpression("position.getInteger(\"adc1\")");
+        Assert.assertEquals(128, computedAttributesHandler.computeAttribute(attribute, position));
+
+        attribute.setExpression("!position.getBoolean(\"booleanFlag\")");
+        Assert.assertEquals(false, computedAttributesHandler.computeAttribute(attribute, position));
+
+        attribute.setExpression("position.getInteger(\"adc2\") * 2 + 50");
+        Assert.assertEquals(250, computedAttributesHandler.computeAttribute(attribute, position));
+
+        attribute.setExpression("(position.getLong(\"bitFlag\") & 4) != 0");
+        Assert.assertEquals(true, computedAttributesHandler.computeAttribute(attribute, position));
+
+        attribute.setExpression("if (position.getLong(\"event\") == 42) \"lowBattery\"");
+        Assert.assertEquals("lowBattery", computedAttributesHandler.computeAttribute(attribute, position));
+    }
+
+}