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/***** BEGIN LICENSE BLOCK *****
* Version: EPL 2.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Eclipse Public
* License Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/epl-v20.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2015-2015 The JRuby Community (and contribs)
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the EPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the EPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
package org.jruby.util.log;
import java.util.logging.Level;
/**
* Logger which delegates to {@link java.util.logging.Logger}.
*
* @author kares
*/
public class JULLogger implements Logger {
private final java.util.logging.Logger logger; // our delegate
public JULLogger(final String loggerName) {
this( java.util.logging.Logger.getLogger(loggerName) );
}
public JULLogger(final Class<?> loggerClass) {
this( java.util.logging.Logger.getLogger(loggerClass.getName()) );
}
protected JULLogger(final java.util.logging.Logger logger) {
this.logger = logger;
}
public String getName() {
return logger.getName();
}
public void warn(String message, Object... args) {
log(Level.WARNING, adjustPattern(message), args);
}
public void warn(Throwable throwable) {
log(Level.WARNING, null, throwable);
}
public void warn(String message, Throwable throwable) {
log(Level.WARNING, message, throwable);
}
public void error(String message, Object... args) {
log(Level.SEVERE, adjustPattern(message), args);
}
public void error(Throwable throwable) {
log(Level.SEVERE, null, throwable);
}
public void error(String message, Throwable throwable) {
log(Level.SEVERE, message, throwable);
}
public void info(String message, Object... args) {
if (logger.isLoggable(Level.INFO)) {
log(Level.INFO, adjustPattern(message), args);
}
}
public void info(Throwable throwable) {
log(Level.INFO, null, throwable);
}
public void info(String message, Throwable throwable) {
log(Level.INFO, message, throwable);
}
public void debug(String message, Object... args) {
if (logger.isLoggable(Level.FINE)) {
log(Level.FINE, adjustPattern(message), args);
}
}
public void debug(Throwable throwable) {
log(Level.FINE, null, throwable);
}
public void debug(String message, Throwable throwable) {
log(Level.FINE, message, throwable);
}
protected void log(Level level, String message, Object... args) {
final String souceClass = null;
final String souceMethod = null;
logger.logp(level, souceClass, souceMethod, message, args);
}
protected void log(Level level, String message, Throwable ex) {
final String souceClass = null;
final String souceMethod = null;
logger.logp(level, souceClass, souceMethod, message, ex);
}
public boolean isDebugEnabled() {
return logger.isLoggable(Level.FINE);
}
public void setDebugEnable(boolean debug) {
logger.setLevel(debug ? Level.FINE : Level.INFO);
}
// adjust {} to JUL conventions e.g. "hello {} {}" -> "hello {0} {1}"
static String adjustPattern(final String messagePattern) {
if (messagePattern == null) return null;
StringBuilder julPattern = null;
final int len = messagePattern.length(); int last = 0; int counter = 0;
for ( int i = 0; i < len; i++ ) {
if ( messagePattern.charAt(i) == '{' &&
( i == 0 || (i > 0 && messagePattern.charAt(i - 1) != '\\' ) ) &&
( i < len - 1 && messagePattern.charAt(i + 1) == '}' ) ) {
if (julPattern == null) {
julPattern = new StringBuilder(len + 8);
}
julPattern.
append(messagePattern, last, i).
append('{').append(counter++).append('}');
last = i + 2;
}
}
if (julPattern != null) {
if (last < len) {
julPattern.append(messagePattern, last, len);
}
return julPattern.toString();
}
return messagePattern; // no {} place holders
}
}