/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2009, QOS.ch. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation.
*/
package ch.qos.logback.core;
import java.util.Arrays;
import ch.qos.logback.core.joran.spi.ConsoleTarget;
import ch.qos.logback.core.status.Status;
import ch.qos.logback.core.status.WarnStatus;
/**
* ConsoleAppender appends log events to <code>System.out</code> or
* <code>System.err</code> using a layout specified by the user. The default
* target is <code>System.out</code>.
*
* For more information about this appender, please refer to the online manual
* at http://logback.qos.ch/manual/appenders.html#ConsoleAppender
*
* @author Ceki Gülcü
* @author Tom SH Liu
* @author Ruediger Dohna
*/
public class ConsoleAppender<E> extends OutputStreamAppender<E> {
protected ConsoleTarget target = ConsoleTarget.SystemOut;
/**
* Sets the value of the <b>Target</b> option. Recognized values are
* "System.out" and "System.err". Any other value will be ignored.
*/
public void setTarget(String value) {
ConsoleTarget t = ConsoleTarget.findByName(value.trim());
if (t == null) {
System.out.println("**************");
targetWarn(value);
} else {
target = t;
}
}
/**
* Returns the current value of the <b>target</b> property. The default value
* of the option is "System.out".
*
* See also {@link #setTarget}.
*/
public String getTarget() {
return target.getName();
}
private void targetWarn(String val) {
Status status = new WarnStatus("[" + val + "] should be one of "
+ Arrays.toString(ConsoleTarget.values()), this);
status.add(new WarnStatus(
"Using previously set target, System.out by default.", this));
addStatus(status);
}
@Override
public void start() {
setOutputStream(target.getStream());
super.start();
}
}