/**
* Logback: the reliable, generic, fast and flexible logging framework.
*
* Copyright (C) 1999-2006, QOS.ch
*
* This library is free software, you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation.
*/
package ch.qos.logback.classic.html;
import java.util.Map;
import ch.qos.logback.classic.ClassicLayout;
import ch.qos.logback.classic.PatternLayout;
import ch.qos.logback.classic.spi.LoggingEvent;
import ch.qos.logback.classic.html.DefaultCssBuilder;
import ch.qos.logback.core.html.HTMLLayoutBase;
import ch.qos.logback.core.pattern.Converter;
/**
*
* HTMLLayout outputs events in an HTML table.
* <p>
* The content of the table columns are specified using a conversion pattern.
* See {@link ch.qos.logback.classic.PatternLayout} for documentation on the
* available patterns.
* <p>
* For more informations about this layout, please refer to the online manual at
* http://logback.qos.ch/manual/layouts.html#ClassicHTMLLayout
*
* @author Ceki Gülcü
* @author Sébastien Pennec
*/
public class HTMLLayout extends HTMLLayoutBase implements ClassicLayout {
/**
* Default pattern string for log output. Currently set to the string <b>"%m"
* </b> which just prints the application supplied message.
*/
static final String DEFAULT_CONVERSION_PATTERN = "%date%thread%level%logger%mdc%msg";
/**
* Constructs a PatternLayout using the DEFAULT_LAYOUT_PATTERN.
*
* The default pattern just produces the application supplied message.
*/
public HTMLLayout() {
pattern = DEFAULT_CONVERSION_PATTERN;
throwableRenderer = new DefaultThrowableRenderer();
cssBuilder = new DefaultCssBuilder();
}
protected Map<String, String> getDefaultConverterMap() {
return PatternLayout.defaultConverterMap;
}
public String doLayout(Object event) {
return doLayout((LoggingEvent) event);
}
public String doLayout(LoggingEvent event) {
StringBuffer buf = new StringBuffer();
handleTableClosing(buf);
boolean odd = true;
if (((counter++) & 1) == 0) {
odd = false;
}
String level = event.getLevel().toString().toLowerCase();
buf.append(LINE_SEP);
buf.append("<tr class=\"");
buf.append(level);
if (odd) {
buf.append(" odd\">");
} else {
buf.append(" even\">");
}
buf.append(LINE_SEP);
Converter c = head;
while (c != null) {
appendEventToBuffer(buf, c, event);
c = c.getNext();
}
buf.append("</tr>");
buf.append(LINE_SEP);
if (event.getThrowableInformation() != null) {
throwableRenderer.render(buf, event);
}
return buf.toString();
}
private void appendEventToBuffer(StringBuffer buf, Converter c,
LoggingEvent event) {
buf.append("<td class=\"");
buf.append(computeConverterName(c));
buf.append("\">");
buf.append(c.convert(event));
buf.append("</td>");
buf.append(LINE_SEP);
}
}