From db888e5c1ef649f2d2eca13dc4d0cdc5bacd7bce Mon Sep 17 00:00:00 2001
From: oblonski <4sschroeder@gmail.com>
Date: Sun, 3 Nov 2013 04:26:59 +0100
Subject: [PATCH] add example 'ConfigureAlgorithInCodeInsteadOfPerXml' - issue
#52
---
...nfigureAlgorithmInCodeInsteadOfPerXml.java | 140 ++++++++++++++++++
1 file changed, 140 insertions(+)
create mode 100644 jsprit-examples/src/main/java/examples/ConfigureAlgorithmInCodeInsteadOfPerXml.java
diff --git a/jsprit-examples/src/main/java/examples/ConfigureAlgorithmInCodeInsteadOfPerXml.java b/jsprit-examples/src/main/java/examples/ConfigureAlgorithmInCodeInsteadOfPerXml.java
new file mode 100644
index 00000000..96497237
--- /dev/null
+++ b/jsprit-examples/src/main/java/examples/ConfigureAlgorithmInCodeInsteadOfPerXml.java
@@ -0,0 +1,140 @@
+/*******************************************************************************
+ * 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 .
+ ******************************************************************************/
+package examples;
+
+import java.io.File;
+import java.util.Collection;
+
+import org.apache.commons.configuration.XMLConfiguration;
+
+import util.Coordinate;
+import util.Solutions;
+import algorithms.VehicleRoutingAlgorithms;
+import analysis.SolutionPlotter;
+import analysis.SolutionPrinter;
+import analysis.SolutionPrinter.Print;
+import basics.Service;
+import basics.VehicleRoutingAlgorithm;
+import basics.VehicleRoutingProblem;
+import basics.VehicleRoutingProblemSolution;
+import basics.io.AlgorithmConfig;
+import basics.io.VrpXMLWriter;
+import basics.route.Vehicle;
+import basics.route.VehicleImpl;
+import basics.route.VehicleImpl.Builder;
+import basics.route.VehicleType;
+import basics.route.VehicleTypeImpl;
+
+public class ConfigureAlgorithmInCodeInsteadOfPerXml {
+
+ public static void main(String[] args) {
+ /*
+ * some preparation - create output folder
+ */
+ 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");
+ }
+
+ /*
+ * get a vehicle type-builder and build a type with the typeId "vehicleType" and a capacity of 2
+ */
+ VehicleTypeImpl.Builder vehicleTypeBuilder = VehicleTypeImpl.Builder.newInstance("vehicleType", 2);
+ VehicleType vehicleType = vehicleTypeBuilder.build();
+
+ /*
+ * get a vehicle-builder and build a vehicle located at (10,10) with type "vehicleType"
+ */
+ Builder vehicleBuilder = VehicleImpl.Builder.newInstance("vehicle");
+ vehicleBuilder.setLocationCoord(Coordinate.newInstance(10, 10));
+ vehicleBuilder.setType(vehicleType);
+ Vehicle vehicle = vehicleBuilder.build();
+
+ /*
+ * build services at the required locations, each with a capacity-demand of 1.
+ */
+ Service service1 = Service.Builder.newInstance("1", 1).setCoord(Coordinate.newInstance(5, 7)).build();
+ Service service2 = Service.Builder.newInstance("2", 1).setCoord(Coordinate.newInstance(5, 13)).build();
+
+ Service service3 = Service.Builder.newInstance("3", 1).setCoord(Coordinate.newInstance(15, 7)).build();
+ Service service4 = Service.Builder.newInstance("4", 1).setCoord(Coordinate.newInstance(15, 13)).build();
+
+
+ VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
+ vrpBuilder.addVehicle(vehicle);
+ vrpBuilder.addService(service1).addService(service2).addService(service3).addService(service4);
+
+ VehicleRoutingProblem problem = vrpBuilder.build();
+
+ /*
+ * get the algorithm out-of-the-box.
+ */
+ AlgorithmConfig algorithmConfig = getAlgorithmConfig();
+ VehicleRoutingAlgorithm algorithm = VehicleRoutingAlgorithms.createAlgorithm(problem,algorithmConfig);
+
+ /*
+ * and search a solution
+ */
+ Collection solutions = algorithm.searchSolutions();
+
+ /*
+ * get the best
+ */
+ VehicleRoutingProblemSolution bestSolution = Solutions.getBest(solutions);
+
+ new VrpXMLWriter(problem, solutions).write("output/problem-with-solution.xml");
+
+ SolutionPrinter.print(bestSolution,Print.VERBOSE);
+
+ /*
+ * plot
+ */
+ SolutionPlotter.plotSolutionAsPNG(problem, bestSolution, "output/solution.png", "solution");
+ }
+
+ private static AlgorithmConfig getAlgorithmConfig() {
+ AlgorithmConfig config = new AlgorithmConfig();
+ XMLConfiguration xmlConfig = config.getXMLConfiguration();
+ xmlConfig.setProperty("iterations", 2000);
+ xmlConfig.setProperty("construction.insertion[@name]","bestInsertion");
+
+ xmlConfig.setProperty("strategy.memory", 1);
+ String searchStrategy = "strategy.searchStrategies.searchStrategy";
+
+ xmlConfig.setProperty(searchStrategy + "(0).selector[@name]","selectBest");
+ xmlConfig.setProperty(searchStrategy + "(0).acceptor[@name]","acceptNewRemoveWorst");
+ xmlConfig.setProperty(searchStrategy + "(0).modules.module(0)[@name]","ruin_and_recreate");
+ xmlConfig.setProperty(searchStrategy + "(0).modules.module(0).ruin[@name]","randomRuin");
+ xmlConfig.setProperty(searchStrategy + "(0).modules.module(0).ruin.share","0.3");
+ xmlConfig.setProperty(searchStrategy + "(0).modules.module(0).insertion[@name]","bestInsertion");
+ xmlConfig.setProperty(searchStrategy + "(0).probability","0.5");
+
+ xmlConfig.setProperty(searchStrategy + "(1).selector[@name]","selectBest");
+ xmlConfig.setProperty(searchStrategy + "(1).acceptor[@name]","acceptNewRemoveWorst");
+ xmlConfig.setProperty(searchStrategy + "(1).modules.module(0)[@name]","ruin_and_recreate");
+ xmlConfig.setProperty(searchStrategy + "(1).modules.module(0).ruin[@name]","radialRuin");
+ xmlConfig.setProperty(searchStrategy + "(1).modules.module(0).ruin.share","0.15");
+ xmlConfig.setProperty(searchStrategy + "(1).modules.module(0).insertion[@name]","bestInsertion");
+ xmlConfig.setProperty(searchStrategy + "(1).probability","0.5");
+
+ return config;
+ }
+
+}