From 8b50f48d8eb0853ffb0d19554ee9febd2ea58885 Mon Sep 17 00:00:00 2001
From: Patrick Niklaus <patrick.niklaus@student.kit.edu>
Date: Fri, 4 Mar 2016 00:04:04 +0100
Subject: [PATCH] Return NoMatch

---
 src/engine/plugins/match.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/engine/plugins/match.cpp b/src/engine/plugins/match.cpp
index e95e86163..18e2860e8 100644
--- a/src/engine/plugins/match.cpp
+++ b/src/engine/plugins/match.cpp
@@ -160,6 +160,11 @@ Status MatchPlugin::HandleRequest(const api::MatchParameters &parameters,
     SubMatchingList sub_matchings = map_matching(candidates_lists, parameters.coordinates,
                                                  parameters.timestamps, parameters.radiuses);
 
+    if (sub_matchings.size() == 0)
+    {
+        return Error("NoMatch", "Could not match the trace.", json_result);
+    }
+
     std::vector<InternalRouteResult> sub_routes(sub_matchings.size());
     for (auto index : util::irange(0UL, sub_matchings.size()))
     {