StackHost-blank-as-empty: Added defaults to the grlc serverName so that its GUI works locally by default.

Author: gpeb2

stack-clients/src/main/java/com/cmclinnovations/stack/services/GrlcService.java

@@ -2,13 +2,15 @@
 
 import com.cmclinnovations.stack.clients.core.EndpointNames;
 import com.cmclinnovations.stack.clients.core.StackClient;
+import com.cmclinnovations.stack.clients.core.StackHost;
 import com.cmclinnovations.stack.clients.rdf4j.Rdf4jEndpointConfig;
 import com.cmclinnovations.stack.services.config.ServiceConfig;
 
 public class GrlcService extends ContainerService {
 
     public static final String TYPE = "grlc";
 
+    private static final String EXTERNAL_PORT_KEY = "EXTERNAL_PORT";
     private static final String GRLC_SERVER_NAME_KEY = "GRLC_SERVER_NAME";
     private static final String GRLC_SPARQL_ENDPOINT_KEY = "GRLC_SPARQL_ENDPOINT";
 
@@ -19,13 +21,12 @@ public GrlcService(String stackName, ServiceConfig config) {
     @Override
     protected void doPreStartUpConfiguration() {
 
-        // String serverName = (StackClient.getStackHost()
-        // .getWithDefaults(null, "", "", "") + "rest/")
-        // .replaceAll("/+", "\\\\/");
-
-        String serverName = StackClient.getStackHost().getStringBuilder()
-                .withName()
-                .withPort()
+        StackHost stackHost = StackClient.getStackHost();
+        String serverName = stackHost.getStringBuilder()
+                // Assume running locally if name not set
+                .withName("localhost")
+                // Assume using Nginx external port if name not set, otherwise no port (80/443 assumed)
+                .withPort(stackHost.getName().isPresent() ? null : System.getenv(EXTERNAL_PORT_KEY))
                 .withPath()
                 .withExtraPath("rest")
                 .build()