| /******************************************************************************* |
| * Copyright (c) 2016 Google, Inc. and others. |
| * 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: |
| * Stefan Xenos <sxenos@gmail.com> (Google) - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.core.runtime; |
| |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.FrameworkUtil; |
| |
| /** |
| * Contains utility functions for logging. |
| * |
| * @since 3.13 |
| */ |
| public final class Log { |
| /** |
| * Writes an error message to the log. |
| * |
| * @param context |
| * a {@link Class} or object that was loaded from the plugin that |
| * generated the message or a {@link String} containing the |
| * bundle's symbolic name. |
| * @param message |
| * message string to be logged. |
| * @param exception |
| * exception to log or null if none. |
| */ |
| public static void error(Object context, String message, Throwable exception) { |
| log(IStatus.ERROR, context, IStatus.OK, message, exception); |
| } |
| |
| /** |
| * Writes an error message to the log. |
| * |
| * @param context |
| * a {@link Class} or object that was loaded from the plugin that |
| * generated the message or a {@link String} containing the |
| * bundle's symbolic name. |
| * @param message |
| * message string to be logged. |
| */ |
| public static void error(Object context, String message) { |
| log(IStatus.ERROR, context, IStatus.OK, message, null); |
| } |
| |
| /** |
| * Writes a warning message to the log. |
| * |
| * @param context |
| * a {@link Class} or object that was loaded from the plugin that |
| * generated the message or a {@link String} containing the |
| * bundle's symbolic name. |
| * @param message |
| * message string to be logged. |
| * @param exception |
| * exception to log or null if none. |
| */ |
| public static void warning(Object context, String message, Throwable exception) { |
| log(IStatus.WARNING, context, IStatus.OK, message, exception); |
| } |
| |
| /** |
| * Writes a warning message to the log. |
| * |
| * @param context |
| * a {@link Class} or object that was loaded from the plugin that |
| * generated the message or a {@link String} containing the |
| * bundle's symbolic name. |
| * @param message |
| * message string to be logged. |
| */ |
| public static void warning(Object context, String message) { |
| log(IStatus.WARNING, context, IStatus.OK, message, null); |
| } |
| |
| /** |
| * Writes an info message to the log. |
| * |
| * @param context |
| * a {@link Class} or object that was loaded from the plugin that |
| * generated the message or a {@link String} containing the |
| * bundle's symbolic name. |
| * @param message |
| * message string to be logged. |
| * @param exception |
| * exception to log or null if none. |
| */ |
| public static void info(Object context, String message, Throwable exception) { |
| log(IStatus.INFO, context, IStatus.OK, message, exception); |
| } |
| |
| /** |
| * Writes an info message to the log. |
| * |
| * @param context |
| * a {@link Class} or object that was loaded from the plugin that |
| * generated the message or a {@link String} containing the |
| * bundle's symbolic name. |
| * @param message |
| * message string to be logged. |
| */ |
| public static void info(Object context, String message) { |
| log(IStatus.INFO, context, IStatus.OK, message, null); |
| } |
| |
| /** |
| * Writes a status message to the log. |
| * |
| * @param context |
| * a {@link Class} or object that was loaded from the plugin that |
| * generated the message or a {@link String} containing the |
| * bundle's symbolic name. |
| * @param toLog |
| * status message to be logged. |
| */ |
| public static void log(Object context, IStatus toLog) { |
| getLog(context).log(toLog); |
| } |
| |
| /** |
| * Returns the {@link ILog} associated with the given context object. |
| * |
| * @param context |
| * a {@link Class} or object that was loaded from the plugin that |
| * generated the message or a {@link String} containing the |
| * bundle's symbolic name. |
| * @return the {@link ILog} associated with the given context object. |
| */ |
| public static ILog getLog(Object context) { |
| Bundle bundle = getBundleForContext(context); |
| return Platform.getLog(bundle); |
| } |
| |
| private static void log(int severity, Object context, int code, String message, Throwable exception) { |
| Bundle bundle = getBundleForContext(context); |
| String symbolicName = bundle.getSymbolicName(); |
| Platform.getLog(bundle).log(new Status(severity, symbolicName, code, message, exception)); |
| } |
| |
| /** |
| * Returns the bundle for the given object if the given object didn't come |
| * from a plugin bundle. If the given context is a String, it is used as the |
| * symbolic name of the bundle. If the given context is a Class, the bundle |
| * that contains that class is returned. Otherwise, the class of the given |
| * object is used. |
| */ |
| private static Bundle getBundleForContext(Object context) { |
| Bundle bundle; |
| if (context instanceof String) { |
| bundle = Platform.getBundle((String) context); |
| if (bundle == null) { |
| throw new IllegalArgumentException( |
| "Bundle not found while attempting to write to log. Invalid bundle id = " + context); //$NON-NLS-1$ |
| } |
| return bundle; |
| } |
| Class classFromBundle; |
| if (context instanceof Class) { |
| classFromBundle = (Class) context; |
| } else { |
| classFromBundle = context.getClass(); |
| } |
| bundle = FrameworkUtil.getBundle(classFromBundle); |
| if (bundle == null) { |
| throw new IllegalArgumentException("Context must be a Class or Object that was loaded from an Eclipse" //$NON-NLS-1$ |
| + " plugin bundle. Context was " + context); //$NON-NLS-1$ |
| } |
| return bundle; |
| } |
| } |