refactor(cmd-runner): load default config from same path as client jar if present

client/README.md

@@ -6,7 +6,7 @@ The sdk comes with a commandline client to be able to use the sdk without any co
 #### Setup & Build
 1. Build project root wih ``./mvnw clean package``
 2. Go to client/target and find a runnable jar ``client-VERSION.jar``
-3. Provide [config yaml](../config.yml) either via env-var or by loading it programmatically:
+3. Provide [config yaml](../config.yml):
    1. set environment variable ``FIT_CONNECT_CONFIG``:
       1. Linux/MacOS: ``export FIT_CONNECT_CONFIG=path/to/config.yml``
       2. Windows: ``set FIT_CONNECT_CONFIG=C:\Path\To\config.yml``
@@ -15,6 +15,7 @@ The sdk comes with a commandline client to be able to use the sdk without any co
       var config = ApplicationConfigLoader.loadConfig("absolute/path/to/config.yml");
       var senderClient = ClientFactory.senderClient(config);
       ````
+   3. put ``config.yml`` in same path as the .jar-file 
 5. run client with ``java -jar client-VERSION.jar [COMMAND] [OPTIONS]``
 
 #### SEND Example

client/src/main/java/dev/fitko/fitconnect/client/cmd/CommandLineRunner.java

 package dev.fitko.fitconnect.client.cmd;
 
+import dev.fitko.fitconnect.api.config.ApplicationConfig;
+import dev.fitko.fitconnect.client.SenderClient;
+import dev.fitko.fitconnect.client.SubscriberClient;
+import dev.fitko.fitconnect.client.factory.ApplicationConfigLoader;
 import dev.fitko.fitconnect.client.factory.ClientFactory;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -13,6 +17,7 @@ import java.util.stream.Collectors;
 public final class CommandLineRunner {
 
     private static final String LOGO = "/splash_screen_banner.txt";
+    public static final String DEFAULT_CONFIG_NAME = "config.yml";
 
     private static final Logger LOGGER = LoggerFactory.getLogger(CommandLineRunner.class);
 
@@ -24,16 +29,25 @@ public final class CommandLineRunner {
         run(args);
     }
 
-    private static void printSplashScreen() {
-        LOGGER.info("{}", getSplashScreenResource(LOGO));
-    }
-
     private static void run(final String[] args) throws IOException {
-        final var senderClient = ClientFactory.senderClient();
-        final var subscriberClient = ClientFactory.subscriberClient();
+        final ApplicationConfig config = ApplicationConfigLoader.loadConfig(DEFAULT_CONFIG_NAME);
+        final var senderClient = getSenderClient(config);
+        final var subscriberClient = getSubscriberClient(config);
         new CommandLineClient(senderClient, subscriberClient).run(args);
     }
 
+    private static SubscriberClient.RequestSubmission getSubscriberClient(final ApplicationConfig config) {
+        return config != null ? ClientFactory.subscriberClient(config) : ClientFactory.subscriberClient();
+    }
+
+    private static SenderClient.Start getSenderClient(final ApplicationConfig config) {
+        return config != null ? ClientFactory.senderClient(config) : ClientFactory.senderClient();
+    }
+
+    private static void printSplashScreen() {
+        LOGGER.info("{}", getSplashScreenResource(LOGO));
+    }
+
     private static String getSplashScreenResource(final String bannerName) {
         final InputStream is = CommandLineRunner.class.getResourceAsStream(bannerName);
         return new BufferedReader(new InputStreamReader(is)).lines().collect(Collectors.joining("\n"));