Added Example with manual Service registration

Signed-off-by: Juergen Albert <j.albert@data-in-motion.biz>

org.gecko.playground.ds.simple/bnd.bnd

@@ -1,2 +1,3 @@
 -buildpath: \
-	org.gecko.playground;version=project
+	org.gecko.playground;version=project,\
+	org.osgi.framework

org.gecko.playground.ds.simple/src/org/gecko/playground/ds/simple/ConsoleLog.java

@@ -10,6 +10,10 @@ public ConsoleLog () {
 		System.out.println("ConsoleLog created");
 	}
 
+	public ConsoleLog (String source) {
+		System.out.println("ConsoleLog created by " + source);
+	}
+
 	@Override
 	public void logMessage(String message) {
 		System.out.println("LOG : " + message);

org.gecko.playground.ds.simple/src/org/gecko/playground/ds/simple/activator/Activator.java

@@ -0,0 +1,56 @@
+/**
+ * Copyright (c) 2012 - 2024 Data In Motion and others.
+ * All rights reserved. 
+ * 
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ * 
+ * Contributors:
+ *     Data In Motion - initial API and implementation
+ */
+package org.gecko.playground.ds.simple.activator;
+
+import java.util.Dictionary;
+import java.util.Hashtable;
+
+import org.gecko.playground.ds.simple.ConsoleLog;
+import org.gecko.playground.log.Log;
+import org.osgi.annotation.bundle.Header;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceRegistration;
+
+@Header(name = "Bundle-Activator", value = "org.gecko.playground.ds.simple.activator.Activator")
+public class Activator implements BundleActivator {
+
+	private ServiceRegistration<Log> registerService;
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
+	 */
+	@Override
+	public void start(BundleContext context) throws Exception {
+		System.out.println("Test");
+
+		Dictionary<String, String> props = new Hashtable<>();
+		props.put("some prop", "via Activator" );
+
+		ConsoleLog log = new ConsoleLog("Activator");
+
+		registerService = context.registerService(Log.class, log, props);
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
+	 */
+	@Override
+	public void stop(BundleContext context) throws Exception {
+		registerService.unregister();
+	}
+
+}