Move logging into utilities

[mark]

I was thinking of having adding methods that could be called in lower-level functions but that could be replaced in the production ST for debugging problems that only show up there. Something like the following.

We do have SurveyLog , but that is in the Web stuff.

CLDRConfig

static abstract class Logger {

abstract public void log(Exception e, Object... parameters);

}

public static final Logger DEFAULT_LOGGER = new Logger() {

public void log(Exception e, Object... parameters) {

if (parameters.length > 0) {

System.err.println(Arrays.asList(parameters));

}
if (e != null) {

e.printStackTrace();

}

}

};

Logger logger = DEFAULT_LOGGER;

/

• Log an exception, where the Survey tool can modify this to store more information,
• such as when events happened, and so on.
• It can also manage the storage, so that the logs don't overflow
• (eg just retaining a few exceptions that happen at
• the same place, or dropping old values.)
• @param e - exception, may be null.
• @param parameters - may be empty. Examples: the current locale, path, and value. */

public void log(Exception e, Object... parameters) {

logger.log(e, parameters);

}