import java.text.SimpleDateFormat; import org.apache.log4j.HTMLLayout;
import org.apache.log4j.Layout;
import org.apache.log4j.Level;
import org.apache.log4j.helpers.Transform;
import org.apache.log4j.spi.LocationInfo;
import org.apache.log4j.spi.LoggingEvent; public class HtmlLogFormat extends HTMLLayout { public HtmlLogFormat() {
} protected final int BUF_SIZE = 256; protected final int MAX_CAPACITY = 1024; static String TRACE_PREFIX = "<br> "; private StringBuffer sbuf = new StringBuffer(BUF_SIZE); String title="Automation Log"; /**
* A string constant used in naming the option for setting the the HTML
* document title. Current value of this string constant is <b>Title</b>.
*/
public static final String TITLE_OPTION = "Title"; // Print no location info by default
boolean locationInfo = true; public String format(LoggingEvent event) {
if (sbuf.capacity() > MAX_CAPACITY) {
sbuf = new StringBuffer(BUF_SIZE);
} else {
sbuf.setLength(0);
}
sbuf.append(Layout.LINE_SEP + "<tr>" + Layout.LINE_SEP); sbuf.append("<td>");
sbuf.append(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new java.util.Date()));
sbuf.append("</td>" + Layout.LINE_SEP); sbuf.append("<td title=\"Level\">");
if (event.getLevel().equals(Level.FATAL)) {
sbuf.append("<font color=\"#339933\">");
sbuf.append(Transform.escapeTags(String.valueOf(event.getLevel())));
sbuf.append("</font>");
} else if (event.getLevel().isGreaterOrEqual(Level.WARN)) {
sbuf.append("<font color=\"#993300\"><strong>");
sbuf.append(Transform.escapeTags(String.valueOf(event.getLevel())));
sbuf.append("</strong></font>");
} else {
sbuf.append("<font color=\"green\">");
sbuf.append(Transform.escapeTags(String.valueOf(event.getLevel())));
sbuf.append("</font>");
}
sbuf.append("</td>" + Layout.LINE_SEP); if (locationInfo) {
LocationInfo locInfo = event.getLocationInformation();
sbuf.append("<td title=\"Source\">");
sbuf.append(Transform.escapeTags(locInfo.getFileName()));
sbuf.append(':');
sbuf.append(locInfo.getLineNumber());
sbuf.append("</td>" + Layout.LINE_SEP);
} sbuf.append("<td title=\"Message\">");
sbuf.append(Transform.escapeTags(event.getRenderedMessage()));
sbuf.append("</td>" + Layout.LINE_SEP);
sbuf.append("</tr>" + Layout.LINE_SEP); if (event.getNDC() != null) {
sbuf.append("<tr><td bgcolor=\"#EEEEEE\" style=\"font-size : xx-small;\" colspan=\"6\" title=\"Nested Diagnostic Context\">");
sbuf.append("NDC: " + Transform.escapeTags(event.getNDC()));
sbuf.append("</td></tr>" + Layout.LINE_SEP);
} String[] s = event.getThrowableStrRep();
if (s != null) {
sbuf.append("<tr><td bgcolor=\"#993300\" style=\"color:White; font-size : xx-small;\" colspan=\"4\">");
appendThrowableAsHTML(s, sbuf);
sbuf.append("</td></tr>" + Layout.LINE_SEP);
}
return sbuf.toString();
} private void appendThrowableAsHTML(String[] s,StringBuffer sbuf){
if (s != null) {
int len = s.length;
if (len == 0)
return;
sbuf.append(Transform.escapeTags(s[0]));
sbuf.append(Layout.LINE_SEP);
for (int i = 1; i < len; i++) {
sbuf.append(TRACE_PREFIX);
sbuf.append(Transform.escapeTags(s[i]));
sbuf.append(Layout.LINE_SEP);
}
}
} /**
* Returns appropriate HTML headers.
*/
public String getHeader() {
StringBuffer sbuf = new StringBuffer();
sbuf.append("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">" + Layout.LINE_SEP);
sbuf.append("<html>" + Layout.LINE_SEP);
sbuf.append("<head>" + Layout.LINE_SEP);
sbuf.append("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">" + Layout.LINE_SEP);
sbuf.append("<title>" + title + "</title>" + Layout.LINE_SEP);
sbuf.append("<style type=\"text/css\">" + Layout.LINE_SEP);
sbuf.append("<!--" + Layout.LINE_SEP);
sbuf.append("body, table {font-family: '??',arial,sans-serif; font-size: 12px;}" + Layout.LINE_SEP);
sbuf.append("th {background: #336699; color: #FFFFFF; text-align: left;}" + Layout.LINE_SEP);
sbuf.append("-->" + Layout.LINE_SEP);
sbuf.append("</style>" + Layout.LINE_SEP);
sbuf.append("</head>" + Layout.LINE_SEP);
sbuf.append("<body bgcolor=\"#FFFFFF\" topmargin=\"6\" leftmargin=\"6\">" + Layout.LINE_SEP); sbuf.append("<table cellspacing=\"0\" cellpadding=\"4\" border=\"1\" bordercolor=\"#224466\" width=\"100%\">" + Layout.LINE_SEP);
sbuf.append("<tr>" + Layout.LINE_SEP); sbuf.append("<th width='120'>Time</th>" + Layout.LINE_SEP);
sbuf.append("<th>Level</th>" + Layout.LINE_SEP); if (locationInfo) {
sbuf.append("<th>Source</th>" + Layout.LINE_SEP);
} sbuf.append("<th>Message</th>" + Layout.LINE_SEP);
sbuf.append("</tr>" + Layout.LINE_SEP);
sbuf.append("<br></br>" + Layout.LINE_SEP);
return sbuf.toString();
} }