public static Logger getLogger(Parameters params, String name)
throws com.grey.base.ConfigException, java.io.IOException {
if (params == null) params = new Parameters();
params.reconcile();
Logger log = null;
try {
Class<?> clss = DynLoader.loadClass(params.logclass);
java.lang.reflect.Constructor<?> ctor =
clss.getDeclaredConstructor(Parameters.class, String.class);
ctor.setAccessible(true);
log = Logger.class.cast(ctor.newInstance(params, name));
} catch (Throwable ex) {
throw new com.grey.base.ConfigException(
ex,
"Failed to create logger="
+ params.logclass
+ " - "
+ com.grey.base.GreyException.summary(ex));
}
log.init();
if (diagtrace) System.out.println("GreyLogger: Created Logger - " + log);
return log;
}
private static Logger getNamedLogger(String cfgpath, String name, String alias)
throws com.grey.base.ConfigException, java.io.IOException {
String tag = (alias == null ? name : (alias + "/" + name));
if (name == null || name.length() == 0) name = DFLT_LOGNAME;
String xpath = "/loggers/logger[@name='" + name + "']" + XmlConfig.XPATH_ENABLED;
java.io.File fh = new java.io.File(cfgpath);
java.net.URL url = null;
XmlConfig cfg = null;
if (fh.exists()) {
cfg = XmlConfig.getSection(cfgpath, xpath);
} else {
url = DynLoader.getLoaderResource(cfgpath, Factory.class.getClassLoader());
if (url != null) {
cfgpath = url.toString();
String xmltxt = FileOps.readAsText(url, null);
cfg = XmlConfig.makeSection(xmltxt, xpath);
}
}
if (url == null) cfgpath = fh.getCanonicalPath();
Parameters params = null;
if (cfg != null) {
alias = cfg.getValue("alias", false, null);
if (name.equals(alias))
throw new com.grey.base.ConfigException(
"GreyLogger: Infinite loop between " + name + " and " + alias + " - " + cfgpath);
if (alias != null && alias.length() != 0) return getNamedLogger(cfgpath, alias, tag);
cfg = cfg.getSection("file");
}
if ((cfg == null || !cfg.exists()) && !name.equalsIgnoreCase(DFLT_LOGNAME)) {
if (sinkstdio) {
if (diagtrace)
System.out.println(
"GreyLogger: Logger=" + tag + " has been directed to stdio - " + cfgpath);
params = new Parameters();
} else {
if (diagtrace)
System.out.println(
"GreyLogger: Logger=" + tag + " has been directed to Sink - " + cfgpath);
return new SinkLogger(name);
}
}
if (params == null) params = new Parameters(cfg);
params.reconcile();
String key = params.pthnam + ":" + params.strm;
Logger log = null;
synchronized (loggers) {
log = loggers.get(key);
if (log != null) {
if (diagtrace)
System.out.println(
"GreyLogger: Logger="
+ tag
+ " has been directed to existing Logger "
+ log
+ " - "
+ cfgpath);
return log;
}
log = getLogger(params, name);
loggers.put(key, log);
if (diagtrace)
System.out.println("GreyLogger: Named Logger=" + tag + " yielded " + log + " - " + cfgpath);
}
return log;
}
