Events subsystem

1 files changed, 55 insertions, 0 deletions

diff --git a/src/org/traccar/events/MotionEventHandler.java b/src/org/traccar/events/MotionEventHandler.java
new file mode 100644
index 000000000..d4dd12a39
--- /dev/null
+++ b/src/org/traccar/events/MotionEventHandler.java
@@ -0,0 +1,55 @@
+package org.traccar.events;
+
+import java.sql.SQLException;
+
+import org.traccar.BaseEventHandler;
+import org.traccar.Context;
+import org.traccar.helper.Log;
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+public class MotionEventHandler extends BaseEventHandler {
+
+    private static final double SPEED_THRESHOLD  = 0.01;
+    private long suppressRepeated;
+
+    public MotionEventHandler() {
+        suppressRepeated = Context.getConfig().getLong("event.suppressrepeated", 60);
+    }
+
+    @Override
+    protected Event analizePosition(Position position) {
+        Event event = null;
+
+        if (!isLastPosition()) {
+            return event;
+        }
+
+        double speed = position.getSpeed();
+        boolean valid = position.getValid();
+        Device device = Context.getIdentityManager().getDeviceById(position.getDeviceId());
+        if (device == null) {
+            return event;
+        }
+        String motion = device.getMotion();
+        if (valid && speed > SPEED_THRESHOLD && !motion.equals(Device.STATUS_MOVING)) {
+            Context.getConnectionManager().updateDevice(position.getDeviceId(), Device.STATUS_MOVING, null);
+            event = new Event(Event.DEVICE_MOVING, position.getDeviceId(), position.getId());
+        } else if (valid && speed < SPEED_THRESHOLD && motion.equals(Device.STATUS_MOVING)) {
+            Context.getConnectionManager().updateDevice(position.getDeviceId(), Device.STATUS_STOPPED, null);
+            event = new Event(Event.DEVICE_STOPPED, position.getDeviceId(), position.getId());
+        }
+        try {
+            if (event != null && !Context.getDataManager().getLastEvents(
+                    position.getDeviceId(), event.getType(), suppressRepeated).isEmpty()) {
+                event = null;
+            }
+
+        } catch (SQLException error) {
+            Log.warning(error);
+        }
+        return event;
+    }
+
+}