private void parseErrorHandler(
final ErrorHandler eh,
final String errorHandlerPrefix,
final Properties props,
final LoggerRepository hierarchy) {
boolean rootRef =
OptionConverter.toBoolean(
OptionConverter.findAndSubst(errorHandlerPrefix + ROOT_REF, props), false);
if (rootRef) {
eh.setLogger(hierarchy.getRootLogger());
}
String loggerName = OptionConverter.findAndSubst(errorHandlerPrefix + LOGGER_REF, props);
if (loggerName != null) {
Logger logger =
(loggerFactory == null)
? hierarchy.getLogger(loggerName)
: hierarchy.getLogger(loggerName, loggerFactory);
eh.setLogger(logger);
}
String appenderName =
OptionConverter.findAndSubst(errorHandlerPrefix + APPENDER_REF_TAG, props);
if (appenderName != null) {
Appender backup = parseAppender(props, appenderName);
if (backup != null) {
eh.setBackupAppender(backup);
}
}
}
/** Parse non-root elements, such non-root categories and renderers. */
protected void parseCatsAndRenderers(Properties props, LoggerRepository hierarchy) {
Enumeration enumeration = props.propertyNames();
while (enumeration.hasMoreElements()) {
String key = (String) enumeration.nextElement();
if (key.startsWith(CATEGORY_PREFIX) || key.startsWith(LOGGER_PREFIX)) {
String loggerName = null;
if (key.startsWith(CATEGORY_PREFIX)) {
loggerName = key.substring(CATEGORY_PREFIX.length());
} else if (key.startsWith(LOGGER_PREFIX)) {
loggerName = key.substring(LOGGER_PREFIX.length());
}
String value = OptionConverter.findAndSubst(key, props);
Logger logger = hierarchy.getLogger(loggerName, loggerFactory);
synchronized (logger) {
parseCategory(props, logger, key, loggerName, value);
parseAdditivityForLogger(props, logger, loggerName);
}
} else if (key.startsWith(RENDERER_PREFIX)) {
String renderedClass = key.substring(RENDERER_PREFIX.length());
String renderingClass = OptionConverter.findAndSubst(key, props);
if (hierarchy instanceof RendererSupport) {
RendererMap.addRenderer((RendererSupport) hierarchy, renderedClass, renderingClass);
}
} else if (key.equals(THROWABLE_RENDERER_PREFIX)) {
if (hierarchy instanceof ThrowableRendererSupport) {
ThrowableRenderer tr =
(ThrowableRenderer)
OptionConverter.instantiateByKey(
props,
THROWABLE_RENDERER_PREFIX,
org.apache.log4j.spi.ThrowableRenderer.class,
null);
if (tr == null) {
LogLog.error("Could not instantiate throwableRenderer.");
} else {
PropertySetter setter = new PropertySetter(tr);
setter.setProperties(props, THROWABLE_RENDERER_PREFIX + ".");
((ThrowableRendererSupport) hierarchy).setThrowableRenderer(tr);
}
}
}
}
}