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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache 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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.juli.logging;
import java.util.logging.ConsoleHandler;
import java.util.logging.Formatter;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Hardcoded java.util.logging commons-logging implementation.
*/
class DirectJDKLog implements Log {
// no reason to hide this - but good reasons to not hide
public final Logger logger;
/** Alternate config reader and console format
*/
private static final String SIMPLE_FMT="java.util.logging.SimpleFormatter";
private static final String SIMPLE_CFG="org.apache.juli.JdkLoggerConfig"; //doesn't exist
private static final String FORMATTER="org.apache.juli.formatter";
static {
if( System.getProperty("java.util.logging.config.class") ==null &&
System.getProperty("java.util.logging.config.file") ==null ) {
// default configuration - it sucks. Let's override at least the
// formatter for the console
try {
Class.forName(SIMPLE_CFG).newInstance();
} catch( Throwable t ) {
}
try {
Formatter fmt=(Formatter)Class.forName(System.getProperty(FORMATTER, SIMPLE_FMT)).newInstance();
// it is also possible that the user modified jre/lib/logging.properties -
// but that's really stupid in most cases
Logger root=Logger.getLogger("");
Handler handlers[]=root.getHandlers();
for( int i=0; i< handlers.length; i++ ) {
// I only care about console - that's what's used in default config anyway
if( handlers[i] instanceof ConsoleHandler ) {
handlers[i].setFormatter(fmt);
}
}
} catch( Throwable t ) {
// maybe it wasn't included - the ugly default will be used.
}
}
}
public DirectJDKLog(String name ) {
logger=Logger.getLogger(name);
}
@Override
public final boolean isErrorEnabled() {
return logger.isLoggable(Level.SEVERE);
}
@Override
public final boolean isWarnEnabled() {
return logger.isLoggable(Level.WARNING);
}
@Override
public final boolean isInfoEnabled() {
return logger.isLoggable(Level.INFO);
}
@Override
public final boolean isDebugEnabled() {
return logger.isLoggable(Level.FINE);
}
@Override
public final boolean isFatalEnabled() {
return logger.isLoggable(Level.SEVERE);
}
@Override
public final boolean isTraceEnabled() {
return logger.isLoggable(Level.FINER);
}
@Override
public final void debug(Object message) {
log(Level.FINE, String.valueOf(message), null);
}
@Override
public final void debug(Object message, Throwable t) {
log(Level.FINE, String.valueOf(message), t);
}
@Override
public final void trace(Object message) {
log(Level.FINER, String.valueOf(message), null);
}
@Override
public final void trace(Object message, Throwable t) {
log(Level.FINER, String.valueOf(message), t);
}
@Override
public final void info(Object message) {
log(Level.INFO, String.valueOf(message), null);
}
@Override
public final void info(Object message, Throwable t) {
log(Level.INFO, String.valueOf(message), t);
}
@Override
public final void warn(Object message) {
log(Level.WARNING, String.valueOf(message), null);
}
@Override
public final void warn(Object message, Throwable t) {
log(Level.WARNING, String.valueOf(message), t);
}
@Override
public final void error(Object message) {
log(Level.SEVERE, String.valueOf(message), null);
}
@Override
public final void error(Object message, Throwable t) {
log(Level.SEVERE, String.valueOf(message), t);
}
@Override
public final void fatal(Object message) {
log(Level.SEVERE, String.valueOf(message), null);
}
@Override
public final void fatal(Object message, Throwable t) {
log(Level.SEVERE, String.valueOf(message), t);
}
// from commons logging. This would be my number one reason why java.util.logging
// is bad - design by committee can be really bad ! The impact on performance of
// using java.util.logging - and the ugliness if you need to wrap it - is far
// worse than the unfriendly and uncommon default format for logs.
private void log(Level level, String msg, Throwable ex) {
if (logger.isLoggable(level)) {
// Hack (?) to get the stack trace.
Throwable dummyException=new Throwable();
StackTraceElement locations[]=dummyException.getStackTrace();
// Caller will be the third element
String cname = "unknown";
String method = "unknown";
if (locations != null && locations.length >2) {
StackTraceElement caller = locations[2];
cname = caller.getClassName();
method = caller.getMethodName();
}
if (ex==null) {
logger.logp(level, cname, method, msg);
} else {
logger.logp(level, cname, method, msg, ex);
}
}
}
static Log getInstance(String name) {
return new DirectJDKLog( name );
}
}
