I also noted that the following code would work just fine in recent Groovy
version, but not in older. The idea is to intercept the stdout (System.out) so
any output can be logged to a text file as well as to the console [really
rather handy!].
import groovy.ui.SystemOutputInterceptor
dateString = new Date().format("yyyyMMMdd-HHmmss")
logOutput = new PrintWriter(new File("./","scriptLog_" + dateString +".log"))
//log into the current directory
myLoger = new SystemOutputInterceptor(
{Integer i, String s -> logOutput << s; logOutput.flush(); true }
)
myLoger.start()
In older groovy versions, it seems that the Integer parameter is not passed to
the closure (and the 'start' method is not required either):
myLoger = new SystemOutputInterceptor(
{Integer i, String s -> logOutput << s; logOutput.flush(); true }
)
myLoger.start()
But I can't think how I can specify this code so it works for all versions of
Groovy. This is the error if it is wrong (here under Groovy 2.0.5):
Caught: groovy.lang.MissingMethodException: No signature of method:
test$_run_closure2.doCall() is applicable for argument types:
(java.lang.Integer, java.lang.String) values: [0, Hello world]
Possible solutions: doCall(java.lang.String), findAll(), findAll()
It is as though I need to be able to provide two closure definitions - one with
and one without the Integer parameter.
Any ideas?
Merlin
