add util createOutputFolder

jsprit-examples/src/main/java/jsprit/examples/CVRPExample.java

@@ -1,32 +0,0 @@
-/*******************************************************************************
- * Copyright (C) 2013  Stefan Schroeder
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either 
- * version 3.0 of the License, or (at your option) any later version.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public 
- * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
- ******************************************************************************/
-package jsprit.examples;
-
-import jsprit.core.problem.VehicleRoutingProblem;
-import jsprit.core.problem.io.VrpXMLWriter;
-import jsprit.instance.reader.ChristofidesReader;
-
-public class CVRPExample {
-	
-	public static void main(String[] args) {
-		VehicleRoutingProblem.Builder builder = VehicleRoutingProblem.Builder.newInstance();
-		new ChristofidesReader(builder).read("input/vrpnc1.txt");
-		VehicleRoutingProblem vrp = builder.build();
-		new VrpXMLWriter(vrp).write("input/vrpnc1-jsprit.xml");
-	}
-
-}

jsprit-examples/src/main/java/jsprit/examples/HVRPBenchmarkExample.java

@@ -14,11 +14,13 @@ import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
 import jsprit.core.util.Solutions;
 import jsprit.instance.reader.VrphGoldenReader;
 import jsprit.instance.reader.VrphGoldenReader.VrphType;
+import jsprit.util.Examples;
 
 /**
  * Shows how to benchmark the algorithm on different classical HVRP and FSM instances.
  * 
- * <p>These instances are from Golden and Taillard and copied from http://mistic.heig-vd.ch/taillard/problemes.dir/vrp.dir/vrp.html.
+ * <p>These instances are from Golden and Taillard and copied from 
+ * <a href=http://mistic.heig-vd.ch/taillard/problemes.dir/vrp.dir/vrp.html>.
  * 
  * <p>You can find best results of different problems, instances and authors here:
  * <br><a href="http://www2.ic.uff.br/~satoru/conteudo/artigos/PAPER%20PUCA-JHeuristics-2011.pdf">http://www2.ic.uff.br/~satoru/conteudo/artigos/PAPER%20PUCA-JHeuristics-2011.pdf</a>
@@ -30,6 +32,7 @@ import jsprit.instance.reader.VrphGoldenReader.VrphType;
 public class HVRPBenchmarkExample {
 	
 	public static void main(String[] args) {
+		Examples.createOutputFolder();
 		VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
 		//read modified Golden-instance, you can find all relevant instances in jsprit-instances/instances/vrph
 		//you can build various problems, see VrphType doc for more details
@@ -57,5 +60,4 @@ public class HVRPBenchmarkExample {
 		new GraphStreamViewer(vrp, best).setRenderDelay(100).display();
 	}
 
-
 }

jsprit-examples/src/main/java/jsprit/util/Examples.java

@@ -0,0 +1,17 @@
+package jsprit.util;
+
+import java.io.File;
+
+public class Examples {
+	
+	public static void createOutputFolder(){
+		File dir = new File("output");
+		// if the directory does not exist, create it
+		if (!dir.exists()){
+			System.out.println("creating directory ./output");
+			boolean result = dir.mkdir();  
+			if(result) System.out.println("./output created");  
+		}
+	}
+
+}