Initial upload opcua service

2026-05-11 19:40:18 +02:00
commit abcd027897
207 changed files with 18613 additions and 0 deletions
--- a/main/java/de/opcua/app/test/MinimalRestTest.java
+++ b/main/java/de/opcua/app/test/MinimalRestTest.java
@@ -0,0 +1,66 @@
+package de.opcua.app.test;
+
+import com.sun.net.httpserver.*;
+import java.io.*;
+import java.net.InetSocketAddress;
+
+/**
+ * Minimal test to verify HttpServer works
+ * Run with: mvn exec:java -Dexec.mainClass="de.opcua.app.test.MinimalRestTest"
+ */
+public class MinimalRestTest {
+    
+    public static void main(String[] args) {
+        try {
+            System.out.println("Creating HTTP Server on port 8081...");
+            
+            HttpServer server = HttpServer.create(new InetSocketAddress(8081), 0);
+            
+            server.createContext("/", exchange -> {
+                String html = "<html><body><h1>It Works!</h1><p>REST API is running on port 8081</p></body></html>";
+                byte[] bytes = html.getBytes("UTF-8");
+                
+                exchange.getResponseHeaders().set("Content-Type", "text/html; charset=UTF-8");
+                exchange.sendResponseHeaders(200, bytes.length);
+                exchange.getResponseBody().write(bytes);
+                exchange.getResponseBody().close();
+            });
+            
+            server.createContext("/test", exchange -> {
+                String json = "{\"status\":\"ok\",\"message\":\"Test endpoint works!\"}";
+                byte[] bytes = json.getBytes("UTF-8");
+                
+                exchange.getResponseHeaders().set("Content-Type", "application/json");
+                exchange.sendResponseHeaders(200, bytes.length);
+                exchange.getResponseBody().write(bytes);
+                exchange.getResponseBody().close();
+            });
+            
+            server.start();
+            
+            System.out.println("✅ HTTP Server started successfully!");
+            System.out.println("✅ Open in browser: http://localhost:8081/");
+            System.out.println("✅ Test endpoint: http://localhost:8081/test");
+            System.out.println("");
+            System.out.println("Test with curl:");
+            System.out.println("  curl http://localhost:8081/");
+            System.out.println("  curl http://localhost:8081/test");
+            System.out.println("");
+            System.out.println("Press Ctrl+C to stop...");
+            
+            Thread.sleep(Long.MAX_VALUE);
+            
+        } catch (Exception e) {
+            System.err.println("❌ Failed to start server!");
+            System.err.println("Error: " + e.getMessage());
+            e.printStackTrace();
+            
+            System.err.println("");
+            System.err.println("Possible causes:");
+            System.err.println("1. Port 8081 is already in use");
+            System.err.println("   Check with: lsof -i :8081");
+            System.err.println("2. Firewall is blocking the port");
+            System.err.println("3. Insufficient permissions");
+        }
+    }
+}