org.identityconnectors.common.logging.StdOutLogger Maven / Gradle / Ivy
/*
* ====================
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2008-2009 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of the Common Development
* and Distribution License("CDDL") (the "License"). You may not use this file
* except in compliance with the License.
*
* You can obtain a copy of the License at
* http://IdentityConnectors.dev.java.net/legal/license.txt
* See the License for the specific language governing permissions and limitations
* under the License.
*
* When distributing the Covered Code, include this CDDL Header Notice in each file
* and include the License file at identityconnectors/legal/license.txt.
* If applicable, add the following below this CDDL Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
* ====================
*/
package org.identityconnectors.common.logging;
import java.io.PrintStream;
import java.text.DateFormat;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.identityconnectors.common.StringPrintWriter;
import org.identityconnectors.common.logging.LogSpi;
import org.identityconnectors.common.logging.Log.Level;
/**
* Standard out logger. It logs all messages to STDOUT. The method
* {@link LogSpi#isLoggable(Class, Level)} will always return true so currently
* logging is not filtered.
*
* @author Will Droste
* @version $Revision: 1.5 $
* @since 1.0
*/
class StdOutLogger implements LogSpi {
private static final String PATTERN = "Thread Id: {0}\tTime: {1}\tClass: {2}\tMethod: {3}\tLevel: {4}\tMessage: {5}";
/**
* Insures there is only one MessageFormat per thread since MessageFormat is
* not thread safe.
*/
private static final ThreadLocal _messageFormatHandler = new ThreadLocal() {
@Override
protected MessageFormat initialValue() {
return new MessageFormat(PATTERN);
}
};
private static final String DATE_PATTERN = "yyyy-MM-dd HH:mm:ss.SSS";
private static final ThreadLocal _dateFormatHandler = new ThreadLocal(){
@Override
protected DateFormat initialValue() {
return new SimpleDateFormat(DATE_PATTERN);
}
};
/**
* Logs the thread id, date, class, level, message, and optionally exception
* stack trace to standard out.
*
* @see LogSpi#log(Class, String, Level, String, Throwable)
*/
public void log(Class clazz, String methodName, Level level,
String message, Throwable ex) {
Object[] args = new Object[] { Thread.currentThread().getId(),
_dateFormatHandler.get().format(new Date()), clazz.getName(), methodName, level, message };
PrintStream out = Level.ERROR.equals(level) ? System.err : System.out;
String msg = _messageFormatHandler.get().format(args);
out.println(msg);
if (ex != null) {
StringPrintWriter wrt = new StringPrintWriter();
ex.printStackTrace(wrt);
out.print(wrt.getString());
}
}
/**
* Always returns true.
*/
public boolean isLoggable(Class clazz, Level level) {
return true;
}
}