[Soaplab-users] ACD outfile problem: how do you return a file? (soaplab2)

[Tom C. <tc...@cs...>]

Hi,

I'm trying to expose a Java program as a web service using soaplab2
(2.1.1), but I am unable to return the wav audio output file that it
generates. It uses a -dumpAudio flag to output to a file, otherwise the
audio is played on the server (sent to the audio stream - not ideal for
a web service). This is how I have encoded the dumpAudio parameter in
the ACD file:

# -dumpAudio <file> flag
string: dump_audio [
  qualifier: dumpAudio
  standard: "Y"
  default: "output.wav"
  information: "dump audio to this file (default: output.wav)"
  comment: defaults
  comment: "display false"
]

it's hidden from the user so will always output to a file. My outfile
definition is:

outfile: output [
  comment: "mimetype audio/x-wav"
  comment: bindata
  comment: "make_url yes"
]

but when I run the process, it succeeds but I am unable to access
output.wav:

--------------------------------------
Summary:
	Completed: Successfully
	Termination status: 0
	Started:   2008-Jul-09 11:08:18 (BST)
	Ended:     2008-Jul-09 11:08:21 (BST)
	Duration:  0:00:03.210
Report:
Name: text_to_speech.freetts
Job ID: [text_to_speech.freetts]_4ca7ea84.11b07436c4e._7ffe
Program and parameters:
java
-jar
/opt/freetts-1.2.1/lib/freetts.jar
-dumpAudio
output.wav
-text
Hello World!
-output
/home/tc/apache-tomcat-6.0.16/temp/_R_/SANDBOX/[text_to_speech.freetts]_4ca7ea84.11b07436c4e._7ffe/o_output
--- end of parameters
Exit: 0

Standard output stream:
Wrote synthesized speech to output.wav
--------------------------------------

no URL or output is generated, only the "report" and "detailed_status".
When I looking in the location above on the server there is the output
file, but why is no URL generated? Am I doing something incorrect with
the outfile definition? Is it possible to return the file via Spinet?

Thanks for your help,

Tom


-- Tom Crick
Mathematical Foundations Group
Department of Computer Science
University of Bath
tc...@cs...
http://www.cs.bath.ac.uk/tom/