From e499d98e5884f48920422d06fca2d4c9cc0359c4 Mon Sep 17 00:00:00 2001
From: iMoHax <born19th@gmail.com>
Date: Mon, 3 Aug 2015 16:32:54 +0300
Subject: [PATCH] fix throw exception if from place don't have stations

---
 core/src/main/java/ru/trader/analysis/VendorsGraph.java | 4 ++--
 core/src/main/java/ru/trader/core/MarketAnalyzer.java   | 6 +++++-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/core/src/main/java/ru/trader/analysis/VendorsGraph.java b/core/src/main/java/ru/trader/analysis/VendorsGraph.java
index 09db604..a5d31a8 100644
--- a/core/src/main/java/ru/trader/analysis/VendorsGraph.java
+++ b/core/src/main/java/ru/trader/analysis/VendorsGraph.java
@@ -149,7 +149,7 @@ public class VendorsGraph extends ConnectibleGraph<Vendor> {
             assert vertex.getEntry() instanceof TransitVendor && !(target.getEntry() instanceof TransitVendor);
             VendorsGraphBuilder h = this;
             Path<Vendor> path = new Path<>(Collections.singleton(lastEdge));
-            while (h != null){
+            while (h != null && h.edge != null){
                 if (callback.isCancel()) break;
                 BuildEdge cEdge = h.edge;
                 Vertex<Vendor> source = cEdge.getSource();
@@ -203,7 +203,7 @@ public class VendorsGraph extends ConnectibleGraph<Vendor> {
             while (path != null){
                 if (callback.isCancel()) break;
                 VendorsGraphBuilder h = this;
-                while (h != null){
+                while (h != null && h.edge != null){
                     if (callback.isCancel()) break;
                     if (h.limit >= path.getMinFuel() && h.limit <= path.getMaxFuel()){
                         BuildEdge cEdge = h.edge;
diff --git a/core/src/main/java/ru/trader/core/MarketAnalyzer.java b/core/src/main/java/ru/trader/core/MarketAnalyzer.java
index f81410d..de2479b 100644
--- a/core/src/main/java/ru/trader/core/MarketAnalyzer.java
+++ b/core/src/main/java/ru/trader/core/MarketAnalyzer.java
@@ -264,7 +264,11 @@ public class MarketAnalyzer {
     }
 
     private List<Vendor> getVendors(Place place){
-        return market.getVendors(place).collect(Collectors.toList());
+        List<Vendor> vendors = market.getVendors(place).collect(Collectors.toList());
+        if (vendors.isEmpty()){
+            vendors = Collections.singletonList(place.asTransit());
+        }
+        return vendors;
     }
 
     public MarketAnalyzer changeCallBack(AnalysisCallBack callback){