Why didn't I try the obvious one first, IsDefined()!
<cfset runtime = CreateObject("java", "java.lang.Runtime")>
<cfset process = runtime.getRuntime().exec(cmd)>
<cfset errStream = process.getErrorStream()>
<cfset errInputStreamReader = CreateObject("java",
"java.io.InputStreamReader").init(errStream)>
<cfset bufferedErrRead = CreateObject("java",
"java.io.BufferedReader").init(errInputStreamReader)>
<cfset line = bufferedErrRead.readLine()>
<cfloop condition="IsDefined('line')">
<cfset err &= line & Chr(13) & Chr(10)>
<cfset line = bufferedErrRead.readLine()>
</cfloop>
Seems to work a treat.
Adrian
> -----Original Message-----
> From: Adrian Lynch [mailto:cont...@adrianlynch.co.uk]
> Sent: 31 July 2009 16:01
> To: cf-talk
> Subject: Looping with BufferedReader.readLine() and comparing to NULL
>
>
> Hey all, I'm trying to get an alternative to cfexecute working and I'm
> wondering how to loop with a call to BufferedReader.readLine().
>
> Here's the code:
>
> <cfset runtime = CreateObject("java", "java.lang.Runtime")>
> <cfset process = runtime.getRuntime().exec(cmd)>
> <cfset errStream = process.getErrorStream()>
> <cfset errInputStreamReader = CreateObject("java",
> "java.io.InputStreamReader").init(errStream)>
> <cfset bufferedErrRead = CreateObject("java",
> "java.io.BufferedReader").init(errInputStreamReader)>
>
> <cfloop from="1" to="20" index="line">
> <cfset err &= bufferedErrRead.readLine() & Chr(13) &
> Chr(10)>
> </cfloop>
>
> The loop is hardcoded to run 20 times, but what I really need is to be
> able
> to do something like:
>
> while bufferedErrRead.readLine() != null
>
> Any ideas on how to do a check for a Java null in CF?
>
> Cheers.
>
> Adrian
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