adicionar classe para envio de mensagens do sistema

pitiupi/src/pitiupi/net/tcp/SysInfoMessage.java

@@ -0,0 +1,58 @@
+package pitiupi.net.tcp;
+
+import pitiupi.net.Message;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class SysInfoMessage extends Message {
+
+    private final SysInfoType type;
+    private final String message;
+
+    public SysInfoMessage(String message, SysInfoType type) {
+        this.message = message;
+        this.type = type;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public SysInfoType getType() {
+        return type;
+    }
+
+    public static void sendSystemInfo(TcpConnection connection, SysInfoType type, String description) {
+        try {
+            SysInfoMessage error = new SysInfoMessage(description, type);
+            connection.send(error.toByteArray());
+        } catch (IOException ex) {
+            Logger.getLogger(SysInfoMessage.class.getName()).log(Level.WARNING, null, ex);
+        }
+    }
+
+    public static SysInfoMessage parseSystemInfo(byte[] bytes) {
+        try (ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
+             ObjectInputStream ois = new ObjectInputStream(bis)) {
+
+            Object object = ois.readObject();
+            if (object instanceof SysInfoMessage) {
+                return (SysInfoMessage) object;
+            }
+        } catch (IOException | ClassNotFoundException ex) {
+            Logger.getLogger(SysInfoMessage.class.getName()).log(Level.WARNING, null, ex);
+        }
+        return null;
+    }
+
+    public static SysInfoMessage parseSystemInfo(Message message) {
+        if (message instanceof SysInfoMessage) {
+            return (SysInfoMessage) message;
+        }
+        return null;
+    }
+}