Wait for initial config sent from the client instead of requesting it

Signed-off-by: Miklos Magyari miklos.magyari@sigmatechnology.com

lsp/src/main/java/org/eclipse/titan/lsp/common/product/Configuration.java

@@ -16,6 +16,7 @@ import java.util.Map;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.CountDownLatch;
 import java.util.stream.Collectors;
 
 import javax.json.Json;
@@ -91,7 +92,7 @@ public class Configuration {
 	/** List of registered preference change listeners */
 	private static List<SimpleImmutableEntry<String,IPreferenceChangedListener>> listeners = new CopyOnWriteArrayList<>();
 	
-	private boolean initialized = false;
+	public static CountDownLatch initializedLatch = new CountDownLatch(1); 
 
 	private Configuration() {
 	}
@@ -180,10 +181,6 @@ public class Configuration {
 				listener.changed(preference);
 			});
 	}
-
-	public boolean isInitialized() {
-		return initialized;
-	}
 	
 	public void addPreference(final String preference, final Object defaultValue) {
 		preferences.put(preference, defaultValue);
@@ -202,8 +199,7 @@ public class Configuration {
 	}
 
 	/**
-	 * Sends a configuration request to the client
-	 * @param client LanguageClient
+	 * Sends a configuration request to the client and waits for the response.
 	 */
 	public static CompletableFuture<Void> getConfiguration() {
 		final String[] sections = { Configuration.EDITOR, GeneralConstants.TITAN };
@@ -227,7 +223,7 @@ public class Configuration {
 	}
 
 	/**
-	 * Parses the json object containing client side preference settings.
+	 * Parses the JSON object containing client side preference settings.
 	 * Uses recursion to handle arbitrary depth of settings. 
 	 * @param json
 	 */
@@ -248,6 +244,7 @@ public class Configuration {
 				e.printStackTrace();
 			}
 			TITANDebugConsole.println(INSTANCE);
+			initializedLatch.countDown();
 		}
 	}