Removed "core" project dependency

Signed-off-by: Rogiel <rogiel@rogiel.com>

src/main/java/com/l2jserver/service/ServiceManager.java

@@ -0,0 +1,93 @@
+package com.l2jserver.service;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.inject.Inject;
+import com.google.inject.Injector;
+import com.l2jserver.service.logging.LoggingService;
+
+public class ServiceManager {
+	/**
+	 * The logger
+	 */
+	private final Logger logger;
+	/**
+	 * The Guice Injector
+	 */
+	private final Injector injector;
+
+	@Inject
+	public ServiceManager(Injector injector) {
+		this.injector = injector;
+		final LoggingService service = injector
+				.getInstance(LoggingService.class);
+		try {
+			service.start();
+		} catch (ServiceStartException e) {
+			throw new RuntimeException(e);
+		}
+		logger = LoggerFactory.getLogger(ServiceManager.class);
+	}
+
+	public <T extends Service> T start(Class<T> serviceClass)
+			throws ServiceStartException {
+		final T service = injector.getInstance(serviceClass);
+		if (service == null)
+			return null;
+		try {
+			logger.info("{}: Starting service...",
+					serviceClass.getCanonicalName());
+			service.start();
+			logger.info("{}: Service started!",
+					serviceClass.getCanonicalName());
+			return service;
+		} catch (ServiceStartException e) {
+			logger.error("{}: Error starting service: {}",
+					serviceClass.getCanonicalName(), e.getCause());
+			throw e;
+		}
+	}
+
+	public void stop(Class<? extends Service> serviceClass)
+			throws ServiceStopException {
+		final Service service = injector.getInstance(serviceClass);
+		if (service == null)
+			return;
+		try {
+			logger.info("{0}: Stopping service...",
+					serviceClass.getCanonicalName());
+			service.stop();
+			logger.info("{0}: Service stopped!",
+					serviceClass.getCanonicalName());
+		} catch (ServiceStopException e) {
+			logger.error("{0}: Error stopping service: {1}",
+					serviceClass.getCanonicalName(), e.getCause());
+			throw e;
+		}
+	}
+
+	public <T extends Service> T restart(Class<T> serviceClass)
+			throws ServiceStartException, ServiceStopException {
+		final T service = injector.getInstance(serviceClass);
+		if (service == null)
+			return null;
+		try {
+			logger.info("{0}: Restaring service...",
+					serviceClass.getCanonicalName());
+			service.stop();
+			service.start();
+			logger.info("{0}: Service restarted!",
+					serviceClass.getCanonicalName());
+			return service;
+		} catch (ServiceStartException e) {
+			logger.error("{0}: Error starting service: {1}",
+					serviceClass.getCanonicalName(), e.getCause());
+			throw e;
+		} catch (ServiceStopException e) {
+			logger.error("{0}: Error stopping service: {1}",
+					serviceClass.getCanonicalName(), e.getCause());
+			throw e;
+		}
+	}
+}