LogFactory.getLog()
-------------------
Key: LOGGING-137
URL: https://issues.apache.org/jira/browse/LOGGING-137
Project: Commons Logging
Issue Type: New Feature
Affects Versions: 1.1.2
Reporter: Doug Bateman
Presently, in Apache Commons, the most common way to get a logger is to do
something like:
public class MyClass {
private static Log log = LogFactory.getLog(MyClass.class);
}
Notice how MyClass.class (or alternatively a string name) is passed as a
parameter. The annoying aspect of this is that sometimes the class name
doesn't get updated when doing copy/paste operations. A desirable alternative
might be:
public class MyClass {
private static Log log = LogFactory.getLog(); //class name inferred from
call stack
}
With such an approach there are two possible concerns I can foresee:
* Call stack inspection isn't terribly fast. However since Loggers are
generally initialized only once, when the class is first loaded, performance
isn't likely to be a major problem.
* Commons-logging is Java 1.1 compatible. Thus care must be taken to
ensure compatibility isn't broken.
* Commons-logging doesn't depend on commons-lang, and thus the utilities in
commons-lang cannot be used.
In Java 1.4, the call stack is easily obtained using Thread.getCallStack().
Prior to Java 1.4, the only way to obtain the call stack is to inspect the
stack trace of an exception.
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