Improving message if no commands is specify. Fix #7.

Signed-off-by: Sun Tan <sutan@redhat.com>
parisjug · Mar 19, 2021 · de6200d · de6200d
1 parent 12eedfe
commit de6200d
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/main/java/org/parisjug/eventpublisher/EventPublisher.java b/src/main/java/org/parisjug/eventpublisher/EventPublisher.java
@@ -5,15 +5,20 @@
 
 import io.quarkus.picocli.runtime.annotations.TopCommand;
 import picocli.CommandLine;
+import picocli.CommandLine.Spec;
+import picocli.CommandLine.Model.CommandSpec;
 
 @TopCommand
 @CommandLine.Command(subcommands = { //
         GenerateGoogleCalendarCommand.class, //
         CreateMailCampaignCommand.class //
 })
 public class EventPublisher implements Runnable {
+    @Spec
+    CommandSpec spec;
+
     @Override
     public void run() {
-        System.out.println("hello ");
+        throw new CommandLine.ParameterException(spec.commandLine(), "No command argument specified. Please provide a command argument.");
     }
 }