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/*******************************************************************************
* Copyright (c) 2010 Mia-Software.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Fabien Giquel (Mia-Software) - initial API and implementation
* Nicolas Bros (Mia-Software)
* Nicolas Bros (Mia-Software) - Bug 339657 - Move Logger to org.eclipse.papyrus.emf.facet.util.core
* Nicolas Bros (Mia-Software) - Bug 340031 - NPE in org.eclipse.papyrus.emf.facet.util.core.Logger#log
*******************************************************************************/
package org.eclipse.papyrus.emf.facet.util.core;
import java.lang.reflect.InvocationTargetException;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.core.runtime.Plugin;
import org.eclipse.core.runtime.Status;
import org.eclipse.papyrus.emf.facet.util.core.internal.Activator;
/**
* Helper for logging using Eclipse API
*
* @author fgiquel
*
*/
public final class Logger {
private Logger() {
// Nothing
}
public static void logError(final Throwable e, final Plugin plugin) {
Logger.log(e, IStatus.ERROR, e.getMessage(), plugin);
}
public static void logError(final String message, final Plugin plugin) {
Logger.log(null, IStatus.ERROR, message, plugin);
}
public static void logError(final Throwable e, final String message, final Plugin plugin) {
Logger.log(e, IStatus.ERROR, message, plugin);
}
public static void logWarning(final Throwable e, final Plugin plugin) {
Logger.log(e, IStatus.WARNING, e.getMessage(), plugin);
}
public static void logWarning(final String message, final Plugin plugin) {
Logger.log(null, IStatus.WARNING, message, plugin);
}
public static void logWarning(final Throwable e, final String message, final Plugin plugin) {
Logger.log(e, IStatus.WARNING, message, plugin);
}
public static void logInfo(final Throwable e, final Plugin plugin) {
Logger.log(e, IStatus.INFO, e.getMessage(), plugin);
}
public static void logInfo(final String message, final Plugin plugin) {
Logger.log(null, IStatus.INFO, message, plugin);
}
/**
* An exception that is instantiated with the sole purpose of providing a
* stack trace when there wouldn't be one otherwise.
*/
protected static class LogStackTrace extends Exception {
private static final long serialVersionUID = 309882934616507415L;
}
public static void log(final Throwable e, final int level,
final String message, final Plugin plugin) {
Throwable effectiveE = e;
Plugin effectivePlugin = plugin;
String effectiveMessage = message;
IStatus status = null;
if (effectiveE instanceof InvocationTargetException) {
effectiveE = ((InvocationTargetException) effectiveE).getTargetException();
}
if (effectivePlugin == null) {
effectivePlugin = Activator.getDefault();
}
if (effectiveE instanceof CoreException) {
MultiStatus mstatus = new MultiStatus(plugin.getBundle().getSymbolicName(), level,
new IStatus[] { ((CoreException) effectiveE).getStatus() }, message, effectiveE);
status = mstatus;
} else {
if (effectiveMessage == null && effectiveE != null) {
effectiveMessage = effectiveE.getMessage();
}
if (effectiveMessage == null && effectiveE != null) {
effectiveMessage = effectiveE.toString();
}
if (effectiveMessage == null) {
effectiveMessage = ""; //$NON-NLS-1$
}
try {
effectiveMessage = effectiveMessage + " (" //$NON-NLS-1$
+ effectivePlugin.getBundle().getSymbolicName() + "_" //$NON-NLS-1$
+ effectivePlugin.getBundle().getVersion() + ")"; //$NON-NLS-1$
} catch (NullPointerException e2) {
effectiveMessage += " (activator class = " //$NON-NLS-1$
+ effectivePlugin.getClass().getName() + ")"; //$NON-NLS-1$
}
if (effectiveE == null) {
// record a stacktrace
effectiveE = new LogStackTrace();
}
status = new Status(level, effectivePlugin.getBundle().getSymbolicName(),
effectiveMessage, effectiveE);
}
effectivePlugin.getLog().log(status);
}
// private static String getPosition() {
// try {
// // get the stack element corresponding to the caller of the log
// // method
// StackTraceElement element = new Exception().getStackTrace()[2];
// return " \n[" + element.getClassName() + "#" + element.getMethodName() + " : " //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
// + element.getLineNumber() + "]"; //$NON-NLS-1$
// } catch (Throwable e) {
// return ""; //$NON-NLS-1$
// }
// }
}
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