View source for Batch Results Retrieval in Python

<syntaxhighlight lang="python" line="1" >
#! /usr/bin/python

########################################################################
#
#  Example client to submit a batch request to TextServer 
# SERVICENAME service, and wait for the job to be finished.
#
#  Input must be a ZIP file containing one or more text files to analyze
#  Output will be a ZIP file containing results for each input file in
# the requested format (XML, json, conll)
#
########################################################################

# import required libraries
import urllib2
# You may need to install "poster" python module for these two:
from poster.encode import multipart_encode
from poster.streaminghttp import register_openers
import xml.etree.ElementTree
import time

# Register the streaming http handlers with urllib2
register_openers()

# set query elements
user = raw_input('TextServer Username: ')
tkid = raw_input('TextServer Job Token ID: ')
outfname = raw_input('Output ZIP file: ')

# service URL
TextServer_URL = "http://frodo.lsi.upc.edu:8080/TextWS/textservlet/ws"

# prepare request to poll for completion and retrieve results
datagen, headers = multipart_encode({'username' : user,
                                     'tokenID' : tkid
                                     })
request = urllib2.Request(TextServer_URL + "/resultRetrieve", 
                          datagen, 
                          headers)

try:
  # send request to check for results
  print "Polling server for job completion..."
  resp =  urllib2.urlopen(request).read()
  
except urllib2.HTTPError, e:
  if (e.code == 503 and e.read()[0:8] == "[TS-125]" ) :
    # http status 503, textserver code TS-125 means the job is not finished yet. 
    print "Job not finished yet" 
  else :      
    # some actual error happened. abort
    print e, "-", e.read()
  exit()
    

# no error, save results to output file
outf=open(outfname, 'w+')
print >>outf, resp
outf.close()
print "Job finished. Results saved to",outfname
</syntaxhighlight>