added missing serializer to git

java/com.sap.sailing.server.gateway.serialization/src/com/sap/sailing/server/gateway/serialization/impl/DeviceWithTimeRangeJsonSerializer.java

@@ -0,0 +1,26 @@
+package com.sap.sailing.server.gateway.serialization.impl;
+
+import org.json.simple.JSONObject;
+
+import com.sap.sailing.domain.racelog.tracking.DeviceWithTimeRange;
+import com.sap.sailing.server.gateway.serialization.JsonSerializer;
+
+public class DeviceWithTimeRangeJsonSerializer implements JsonSerializer<DeviceWithTimeRange> {
+    public static final String FIELD_FROM = "FROM_MILLIS";
+    public static final String FIELD_TO = "TO_MILLIS";
+    
+    private DeviceIdentifierJsonSerializer deviceIdentifierJsonSerializer;
+    
+    public DeviceWithTimeRangeJsonSerializer(DeviceIdentifierJsonSerializer deviceIdentifierJsonSerializer) {
+        super();
+        this.deviceIdentifierJsonSerializer = deviceIdentifierJsonSerializer;
+    }
+
+    @Override
+    public JSONObject serialize(DeviceWithTimeRange object) {
+        JSONObject result = deviceIdentifierJsonSerializer.serialize(object.getDevice());
+        result.put(FIELD_FROM, object.getTimeRange().from().asMillis());
+        result.put(FIELD_TO, object.getTimeRange().to().asMillis());
+        return result;
+    }
+}