wrapper_sample.py

wrapper_sample.py

import os, sys, json, subprocess

# Load JSON file
fp = open( '_input.json' )
params = json.load( fp )

# Prepare input file
f = open('configuration.xml', 'w')
param_txt = """<configuration>
    <input>
        <length value="%d" />
        <velocity value="%f"/>
        <time value="%d"/>
        <seed value="%d"/>
    </input>
</configuration>
""" % (params['length'], params['velocity'], params['time'], params['_seed'])
f.write(param_txt)
f.flush()

# Execution of the simulator
simulator = os.path.abspath(os.path.dirname(__file__)) + "/my_simulator.out"
cmd = [simulator, '-c', 'configuration.xml']
sys.stderr.write("Running: %s\n" % cmd)
subprocess.check_call(cmd)
sys.stderr.write("Successfully finished\n")