Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #20943

Re: dependency injection and loggers

Show all headers | View raw

In article <kc6rjn$fl2$1@dont-email.me>,
 markspace <markspace@nospam.nospam> wrote:

> On 1/4/2013 4:00 AM, Tomer wrote:
> > I love the concept of dependency injection via ctor. it simplifies
> > life and makes testing easy. what about logger? i usually instantiate
> > it in private static logger = Logger.getLogger(myclass); however this
> > is not dependency injection, should I pass the logger into each ctor?
> > this would look wierd... so what to do about loggers and depedency
> > injection?
> 
> 
> I agree with you on both counts.  Ctors are an excellent way of 
> implementing dependency injection, and static methods aren't.
> 
> However loggers are more of an aspect than a dependency.  Absent some 
> other framework (AOP, for example, or some sort of annotation 
> processing), good old frameworks and libraries solve this problem.  Have 
> a look at Apache logging:
> 
> <http://commons.apache.org/logging/>

I'd say that Java's own logger (java.util.logging) is worth a look too 
if you want modularity.  It's easy to plug in custom formatters and 
handlers.  You map logging paths to handlers during app initialization 
so no dependency injection is involved.  My biggest peeve about most 
loggers is that they don't indent multi-line log entries nicely and 
they're sensitive to disk latency.  It's not a problem when you plug in 
your own parts.  You can also do fancy logging to remote archiving 
systems (JSON or XML over socket or REST, etc.) with little effort.

http://docs.oracle.com/javase/6/docs/api/java/util/logging/package-summar
y.html
-- 
I will not see posts from Google because I must filter them as spam

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

dependency injection and loggers Tomer <tomerbd1@gmail.com> - 2013-01-04 04:00 -0800
  Re: dependency injection and loggers markspace <markspace@nospam.nospam> - 2013-01-04 07:13 -0800
    Re: dependency injection and loggers Kevin McMurtrie <mcmurtrie@pixelmemory.us> - 2013-01-04 09:18 -0800
      Re: dependency injection and loggers Arne Vajhøj <arne@vajhoej.dk> - 2013-01-04 22:27 -0500
        Re: dependency injection and loggers Wayne <nospam@all.invalid> - 2013-01-04 23:33 -0500
          Re: dependency injection and loggers Arved Sandstrom <asandstrom2@eastlink.ca> - 2013-01-05 11:55 -0400
            Re: dependency injection and loggers Kevin McMurtrie <mcmurtrie@pixelmemory.us> - 2013-01-05 10:01 -0800
              Re: dependency injection and loggers Arne Vajhøj <arne@vajhoej.dk> - 2013-01-05 15:17 -0500
              Re: dependency injection and loggers Arne Vajhøj <arne@vajhoej.dk> - 2013-01-05 16:37 -0500
        Re: dependency injection and loggers Lew <lewbloch@gmail.com> - 2013-01-05 12:24 -0800
          Re: dependency injection and loggers Arne Vajhøj <arne@vajhoej.dk> - 2013-01-05 16:41 -0500
    Re: dependency injection and loggers Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-01-04 10:31 -0800
      Re: dependency injection and loggers Lew <lewbloch@gmail.com> - 2013-01-04 11:36 -0800
        Re: dependency injection and loggers Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-01-04 11:57 -0800
      Re: dependency injection and loggers Arne Vajhøj <arne@vajhoej.dk> - 2013-01-04 22:28 -0500
  Re: dependency injection and loggers Arne Vajhøj <arne@vajhoej.dk> - 2013-01-04 22:24 -0500

csiph-web