From 33613a85afc4b1481367fbe92a17ee59c240250b Mon Sep 17 00:00:00 2001
From: Sven Eisenhauer <sven@sven-eisenhauer.net>
Date: Fri, 10 Nov 2023 15:11:48 +0100
Subject: add new repo

---
 .../hjp5/examples/EchoClient.java                  | 95 ++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 Master/Reference Architectures and Patterns/hjp5/examples/EchoClient.java

(limited to 'Master/Reference Architectures and Patterns/hjp5/examples/EchoClient.java')

diff --git a/Master/Reference Architectures and Patterns/hjp5/examples/EchoClient.java b/Master/Reference Architectures and Patterns/hjp5/examples/EchoClient.java
new file mode 100644
index 0000000..4b99b0b
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/hjp5/examples/EchoClient.java	
@@ -0,0 +1,95 @@
+/* EchoClient.java */
+
+import java.net.*;
+import java.io.*;
+
+public class EchoClient
+{
+  public static void main(String[] args)
+  {
+    if (args.length != 1) {
+      System.err.println("Usage: java EchoClient <host>");
+      System.exit(1);
+    }
+    try {
+      Socket sock = new Socket(args[0], 7);
+      InputStream in = sock.getInputStream();
+      OutputStream out = sock.getOutputStream();
+      //Timeout setzen
+      sock.setSoTimeout(300); 
+      //Ausgabethread erzeugen
+      OutputThread th = new OutputThread(in);
+      th.start();
+      //Schleife für Benutzereingaben
+      BufferedReader conin = new BufferedReader(
+                             new InputStreamReader(System.in));
+      String line = "";
+      while (true) { 
+        //Eingabezeile lesen
+        line = conin.readLine();
+        if (line.equalsIgnoreCase("QUIT")) {
+          break;
+        }
+        //Eingabezeile an ECHO-Server schicken
+        out.write(line.getBytes());
+        out.write('\r');
+        out.write('\n');
+        //Ausgabe abwarten
+        th.yield(); 
+      }
+      //Programm beenden
+      System.out.println("terminating output thread...");
+      th.requestStop();
+      th.yield();
+      try {
+        Thread.sleep(1000);
+      } catch (InterruptedException e) {
+      }
+      in.close(); 
+      out.close();
+      sock.close();
+    } catch (IOException e) {
+      System.err.println(e.toString());
+      System.exit(1);
+    }
+  }
+}
+
+class OutputThread
+extends Thread
+{
+  InputStream in;
+  boolean     stoprequested;
+
+  public OutputThread(InputStream in)
+  {
+    super();
+    this.in = in;
+    stoprequested = false;
+  }
+
+  public synchronized void requestStop()
+  {
+    stoprequested = true;
+  }
+
+  public void run()
+  {
+    int len;
+    byte[] b = new byte[100];
+    try {
+      while (!stoprequested) { 
+        try {
+          if ((len = in.read(b)) == -1) { 
+            break;
+          }
+          System.out.write(b, 0, len);
+        } catch (InterruptedIOException e) { 
+          //nochmal versuchen
+        }
+      }
+    } catch (IOException e) {
+      System.err.println("OutputThread: " + e.toString());
+    }
+  }
+}
\ No newline at end of file
-- 
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