fix search if source don't have markets

core/src/main/java/ru/trader/analysis/MarketUtils.java

@@ -4,6 +4,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import ru.trader.core.Offer;
 import ru.trader.core.Order;
+import ru.trader.core.SERVICE_TYPE;
 import ru.trader.core.Vendor;
 
 import java.util.ArrayList;
@@ -58,4 +59,8 @@ public class MarketUtils {
         }
         return orders;
     }
+
+    public static boolean hasMarket(Vendor vendor) {
+        return vendor.has(SERVICE_TYPE.MARKET) || vendor.has(SERVICE_TYPE.BLACK_MARKET);
+    }
 }

core/src/main/java/ru/trader/analysis/VendorsCrawler.java

@@ -73,7 +73,10 @@ public class VendorsCrawler extends Crawler<Vendor> {
         protected boolean check(Edge<Vendor> e){
             VendorsGraph.VendorsBuildEdge edge = (VendorsGraph.VendorsBuildEdge) e;
             return fuel <= edge.getMaxFuel() && (fuel >= edge.getMinFuel() || edge.getSource().getEntry().canRefill())
-                   && (edge.getProfit() > 0 || VendorsCrawler.this.isContent(edge, this));
+                   && (edge.getProfit() > 0 || VendorsCrawler.this.isContent(edge, this)
+                       // adding all edges if this start entry and don't have market
+                       || (isStart() && !MarketUtils.hasMarket(vertex.getEntry()))
+                       );
         }
 
         protected VendorsEdge wrap(Edge<Vendor> e) {

core/src/main/java/ru/trader/analysis/graph/Crawler.java

@@ -701,6 +701,10 @@ public class Crawler<T> {
             return size;
         }
 
+        public boolean isStart(){
+            return head == null && edge == null;
+        }
+
         @Override
         public String toString() {
             final StringBuilder sb = new StringBuilder("{");