Improvement/logging issue regarding osgi

src/main/java/com/hivemq/HiveMQServer.java

@@ -66,25 +66,28 @@ public class HiveMQServer {
     private final @NotNull SystemInformation systemInformation;
     private final @NotNull MetricRegistry metricRegistry;
     private final boolean migrate;
+    private final boolean enableLoggingBootstrap;
 
     private @Nullable Injector injector;
     private @Nullable FullConfigurationService configService;
 
     public HiveMQServer() {
-        this(new SystemInformationImpl(true), new MetricRegistry(), null, true);
+        this(new SystemInformationImpl(true), new MetricRegistry(), null, true, true);
     }
 
     public HiveMQServer(
             final @NotNull SystemInformation systemInformation,
             final @Nullable MetricRegistry metricRegistry,
             final @Nullable FullConfigurationService configService,
+            final boolean enableLoggingBootstrap,
             final boolean migrate) {
         hivemqId = new HivemqId();
         lifecycleModule = new LifecycleModule();
         dataLock = new DataLock();
         this.systemInformation = systemInformation;
         this.metricRegistry = metricRegistry;
         this.configService = configService;
+        this.enableLoggingBootstrap = enableLoggingBootstrap;
         this.migrate = migrate;
     }
 
@@ -105,7 +108,9 @@ public void bootstrap() throws Exception {
 
         metricRegistry.addListener(new MetricRegistryLogger());
 
-        LoggingBootstrap.prepareLogging();
+        if (enableLoggingBootstrap) {
+            LoggingBootstrap.prepareLogging();
+        }
 
         log.info("Starting HiveMQ Community Edition Server");
 
@@ -116,8 +121,11 @@ public void bootstrap() throws Exception {
             systemInformation.init();
         }
 
-        log.trace("Initializing Logging");
-        LoggingBootstrap.initLogging(systemInformation.getConfigFolder());
+        if (enableLoggingBootstrap) {
+            log.trace("Initializing Logging");
+
+            LoggingBootstrap.initLogging(systemInformation.getConfigFolder());
+        }
 
         log.trace("Initializing Exception handlers");
         HiveMQExceptionHandlerBootstrap.addUnrecoverableExceptionHandler();
@@ -216,7 +224,10 @@ public void startInstance(final @Nullable EmbeddedExtension embeddedExtension) t
 
         /* It's important that we are modifying the log levels after Guice is initialized,
         otherwise this somehow interferes with Singleton creation */
-        LoggingBootstrap.addLoglevelModifiers();
+        if (enableLoggingBootstrap) {
+            LoggingBootstrap.addLoglevelModifiers();
+        }
+
         instance.start(embeddedExtension);
     }
 
@@ -262,7 +273,9 @@ public void stop() {
         if (configService.persistenceConfigurationService().getMode() == PersistenceMode.FILE) {
             dataLock.unlock();
         }
-        LoggingBootstrap.resetLogging();
+        if (enableLoggingBootstrap) {
+            LoggingBootstrap.resetLogging();
+        }
     }
 
     public @Nullable Injector getInjector() {

src/main/java/com/hivemq/embedded/EmbeddedHiveMQBuilder.java

@@ -74,6 +74,14 @@ public interface EmbeddedHiveMQBuilder {
      */
     @NotNull EmbeddedHiveMQBuilder withEmbeddedExtension(@Nullable EmbeddedExtension embeddedExtension);
 
+    /**
+     * Disables the internal logging bootstrap, for the case any logging is already provided by other frameworks,
+     * such as OSGi or Springboot.
+     *
+     * @return this builder.
+     */
+    @NotNull EmbeddedHiveMQBuilder withoutLoggingBootstrap();
+
     /**
      * Concludes the EmbeddedHiveMQ build process.
      * <p>

src/main/java/com/hivemq/embedded/internal/EmbeddedHiveMQBuilderImpl.java

@@ -35,6 +35,7 @@ public class EmbeddedHiveMQBuilderImpl implements EmbeddedHiveMQBuilder {
     private @Nullable Path dataFolder = null;
     private @Nullable Path extensionsFolder = null;
     private @Nullable EmbeddedExtension embeddedExtension = null;
+    private boolean enableLoggingBootstrap = true;
 
     @Override
     public @NotNull EmbeddedHiveMQBuilder withConfigurationFolder(final @Nullable Path configFolder) {
@@ -60,14 +61,20 @@ public class EmbeddedHiveMQBuilderImpl implements EmbeddedHiveMQBuilder {
         return this;
     }
 
+    @Override
+    public @NotNull EmbeddedHiveMQBuilder withoutLoggingBootstrap() {
+        this.enableLoggingBootstrap = false;
+        return this;
+    }
+
     @Override
     public @NotNull EmbeddedHiveMQ build() {
         // Shim for the old API
         final File confFile = configFolder == null ? null : configFolder.toFile();
         final File dataFile = dataFolder == null ? null : dataFolder.toFile();
         final File extensionsFile = extensionsFolder == null ? null : extensionsFolder.toFile();
 
-        return new EmbeddedHiveMQImpl(confFile, dataFile, extensionsFile, embeddedExtension);
+        return new EmbeddedHiveMQImpl(confFile, dataFile, extensionsFile, embeddedExtension, enableLoggingBootstrap);
     }
 
 }

src/main/java/com/hivemq/embedded/internal/EmbeddedHiveMQImpl.java

@@ -64,17 +64,21 @@ class EmbeddedHiveMQImpl implements EmbeddedHiveMQ {
     private @NotNull LinkedList<CompletableFuture<Void>> stopFutures = new LinkedList<>();
     private @Nullable Future<?> shutDownFuture;
 
+    private final boolean enableLoggingBootstrap;
+
     EmbeddedHiveMQImpl(
             final @Nullable File conf, final @Nullable File data, final @Nullable File extensions) {
-        this(conf, data, extensions, null);
+        this(conf, data, extensions, null, true);
     }
 
     EmbeddedHiveMQImpl(
             final @Nullable File conf,
             final @Nullable File data,
             final @Nullable File extensions,
-            final @Nullable EmbeddedExtension embeddedExtension) {
+            final @Nullable EmbeddedExtension embeddedExtension,
+            final boolean enableLoggingBootstrap) {
         this.embeddedExtension = embeddedExtension;
+        this.enableLoggingBootstrap = enableLoggingBootstrap;
 
         log.info("Setting default authentication behavior to ALLOW ALL");
         InternalConfigurations.AUTH_DENY_UNAUTHENTICATED_CONNECTIONS.set(false);
@@ -146,7 +150,7 @@ private void stateChange() {
                     systemInformation.init();
                     configurationService = ConfigurationBootstrap.bootstrapConfig(systemInformation);
 
-                    hiveMQServer = new HiveMQServer(systemInformation, metricRegistry, configurationService, false);
+                    hiveMQServer = new HiveMQServer(systemInformation, metricRegistry, configurationService, enableLoggingBootstrap, false);
                     hiveMQServer.bootstrap();
                     hiveMQServer.startInstance(embeddedExtension);
 

src/test/java/com/hivemq/embedded/internal/EmbeddedHiveMQImplTest.java

@@ -268,7 +268,8 @@ public void test_hivemq_uses_embedded_extension_with_normal() throws Exception {
         final EmbeddedExtensionImpl extension =
                 new EmbeddedExtensionImpl("id", "name", "123", "luke_skywalker", 0, 1000, embeddedMain);
 
-        final EmbeddedHiveMQImpl embeddedHiveMQ = new EmbeddedHiveMQImpl(conf, data, extensions, extension);
+        final EmbeddedHiveMQImpl embeddedHiveMQ =
+                new EmbeddedHiveMQImpl(conf, data, extensions, extension, true);
         embeddedHiveMQ.start().get();
 
         assertTrue(embeddedMain.running.get());