From 7392cb24c7a9b00bbf9f7d02fa472db56c45d36f Mon Sep 17 00:00:00 2001
From: Mitsuo Tokumori <rtokumori@pucp.edu.pe>
Date: Mon, 6 Jun 2022 19:31:48 -0500
Subject: Add VrptAcoCallService in odiparback

Works in Linux.  But still needs testing on Windows.
---
 .../odiparback/services/VrptAcoCallService.java    | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 back/odiparback/src/main/java/pe/edu/pucp/odiparback/services/VrptAcoCallService.java

(limited to 'back')

diff --git a/back/odiparback/src/main/java/pe/edu/pucp/odiparback/services/VrptAcoCallService.java b/back/odiparback/src/main/java/pe/edu/pucp/odiparback/services/VrptAcoCallService.java
new file mode 100644
index 0000000..63dc576
--- /dev/null
+++ b/back/odiparback/src/main/java/pe/edu/pucp/odiparback/services/VrptAcoCallService.java
@@ -0,0 +1,61 @@
+package pe.edu.pucp.odiparback.services;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+public class VrptAcoCallService {
+    /*
+    * Linux:
+    * - shell: sh
+    * - command:
+    *       cd /path/to/VRPTW-ACO-python
+    *       python3 example1.py
+    *
+    * Windows:
+    * - shell: cmd
+    * - command:
+    *       cd c:\path\to\VRPTW-ACO-python
+    *       python example1.py
+    *
+    * Salida del algoritmo en variable `output`
+    * (Demora unos 2 min en ejecutar el algoritmo)
+    */
+    public static void main(String[] args) {
+        String command = "pwd && date && ls ~";
+        command = "~/.odiparpack";
+        try {
+            System.out.println(
+                    System.getProperty("os.name") + "\n" +
+                            System.getProperty("user.name")
+            );
+            ProcessBuilder pb
+                    = new ProcessBuilder("sh", "-c", command);
+            pb.directory(
+                    new File(System.getProperty("user.home"))
+            );
+            Process process = pb.start();
+
+            StringBuilder output = new StringBuilder();
+            BufferedReader reader
+                    = new BufferedReader(new InputStreamReader(
+                    process.getInputStream()
+            ));
+            String line;
+            while ((line = reader.readLine()) != null) {
+                output.append(line + '\n');
+            }
+            int exitVal = process.waitFor();
+            if (exitVal == 0) {
+                System.out.println("The output is:");
+                System.out.println(output);
+                //System.exit(0);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+}
-- 
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