| /******************************************************************************* |
| * Copyright (c) 2010 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.e4.core.internal.di.shared; |
| |
| |
| /** |
| * This class attempt to use OSGi logging service to log a error. If OSGi is not |
| * available, it falls back on writing to the error stream. |
| */ |
| public class CoreLogger { |
| |
| static public void logError(String msg, Throwable e) { |
| // Different VMs have different degrees of "laziness" for the class loading. |
| // To make sure that VM won't try to load OSGi-specific helper class before getting into |
| // this try-catch block, the fully qualified name is used (removing entry for |
| // the utility class from the import list). |
| try { |
| org.eclipse.e4.core.internal.di.osgi.LogHelper.logError(msg, e); |
| } catch (NoClassDefFoundError noClass) { |
| baseLog(msg, e); |
| } |
| } |
| |
| static private void baseLog(String msg, Throwable e) { |
| if (msg != null) |
| System.err.println(msg); |
| if (e != null) |
| e.printStackTrace(); |
| } |
| |
| } |