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/*******************************************************************************
* Copyright (c) 2007, 2008 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.equinox.internal.frameworkadmin.equinox;
import org.osgi.framework.BundleContext;
import org.osgi.service.log.LogService;
import org.osgi.util.tracker.ServiceTracker;
/**
* Utility class with static methods for logging to LogService, if available
*/
@SuppressWarnings({"rawtypes", "unchecked"})
public class Log {
static private ServiceTracker logTracker;
static private boolean useLog = false;
public static void dispose() {
if (logTracker != null) {
logTracker.close();
}
logTracker = null;
}
public static void init(BundleContext bc) {
logTracker = new ServiceTracker(bc, LogService.class.getName(), null);
logTracker.open();
}
public static void log(int level, Object obj, String method, String message) {
log(level, obj, method, message, null);
}
public static void log(int level, Object obj, String method, String message, Throwable e) {
LogService logService = null;
String msg = ""; //$NON-NLS-1$
if (method == null) {
if (obj != null)
msg = "(" + obj.getClass().getName() + ")"; //$NON-NLS-1$ //$NON-NLS-2$
} else if (obj == null)
msg = "[" + method + "]" + message; //$NON-NLS-1$ //$NON-NLS-2$
else
msg = "[" + method + "](" + obj.getClass().getName() + ")"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
msg += message;
if (logTracker != null)
logService = (LogService) logTracker.getService();
if (logService != null) {
logService.log(level, msg, e);
} else {
String levelSt = null;
if (level == LogService.LOG_DEBUG)
levelSt = "DEBUG"; //$NON-NLS-1$
else if (level == LogService.LOG_INFO)
levelSt = "INFO"; //$NON-NLS-1$
else if (level == LogService.LOG_WARNING)
levelSt = "WARNING"; //$NON-NLS-1$
else if (level == LogService.LOG_ERROR) {
levelSt = "ERROR"; //$NON-NLS-1$
useLog = true;
}
if (useLog) {
System.err.println("[" + levelSt + "]" + msg); //$NON-NLS-1$ //$NON-NLS-2$
if (e != null)
e.printStackTrace();
}
}
}
public static void log(int level, Object obj, String method, Throwable e) {
log(level, obj, method, null, e);
}
public static void log(int level, String message) {
log(level, null, null, message, null);
}
public static void log(int level, String message, Throwable e) {
log(level, null, null, message, e);
}
private Log() {
}
}
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