/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2011, 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.joran.action;
import java.text.SimpleDateFormat;
import java.util.Date;
import ch.qos.logback.core.util.CachingDateFormatter;
import org.xml.sax.Attributes;
import ch.qos.logback.core.joran.spi.ActionException;
import ch.qos.logback.core.joran.spi.InterpretationContext;
import ch.qos.logback.core.util.OptionHelper;
/**
* Given a key and a date-and-time pattern, puts a property to the context, with
* the specified key and value equal to the current time in the format
* corresponding to the specified date-and-time pattern.
*
* @author Ceki Gülcü
*
*/
public class TimestampAction extends Action {
static String DATE_PATTERN_ATTRIBUTE = "datePattern";
static String TIME_REFERENCE_ATTRIBUTE = "timeReference";
static String CONTEXT_BIRTH = "contextBirth";
boolean inError = false;
@Override
public void begin(InterpretationContext ec, String name, Attributes attributes)
throws ActionException {
String keyStr = attributes.getValue(KEY_ATTRIBUTE);
if (OptionHelper.isEmpty(keyStr)) {
addError("Attribute named [" + KEY_ATTRIBUTE + "] cannot be empty");
inError = true;
}
String datePatternStr = attributes.getValue(DATE_PATTERN_ATTRIBUTE);
if (OptionHelper.isEmpty(datePatternStr)) {
addError("Attribute named [" + DATE_PATTERN_ATTRIBUTE
+ "] cannot be empty");
inError = true;
}
String timeReferenceStr = attributes.getValue(TIME_REFERENCE_ATTRIBUTE);
long timeReference = -1;
if (CONTEXT_BIRTH.equalsIgnoreCase(timeReferenceStr)) {
addInfo("Using context birth as time reference.");
timeReference = context.getBirthTime();
} else {
timeReference = System.currentTimeMillis();
addInfo("Using current interpretation time, i.e. now, as time reference.");
}
if (inError)
return;
CachingDateFormatter sdf = new CachingDateFormatter(datePatternStr);
String val = sdf.format(timeReference);
addInfo("Adding property to the context with key=\"" + keyStr
+ "\" and value=\"" + val + "\" to the context");
context.putProperty(keyStr, val);
}
@Override
public void end(InterpretationContext ec, String name) throws ActionException {
}
}