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'''
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API to configure new Radar controller
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@author: Juan C. Espinoza
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'''
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import os
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import json
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import requests
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from struct import pack
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from base64 import b64encode
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class RCApi(object):
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def __init__(self, ip, port=80):
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self.url = 'http://{}:{}/'.format(ip, port)
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self.params = None
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def load(self, filename):
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self.params = json.load(open(filename))
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self.pk = self.params['configurations']['allIds'][0]
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print 'RC Configuration: {}'.format(self.params['configurations']['byId'][self.pk]['name'])
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def status(self):
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url = os.path.join(self.url, 'status')
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req = requests.get(url)
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return req.json()
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def read(self):
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url = os.path.join(self.url, 'read')
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req = requests.get(url)
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return req.json()
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def stop(self):
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url = os.path.join(self.url, 'stop')
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req = requests.post(url)
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return req.json()
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def reset(self):
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url = os.path.join(self.url, 'reset')
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req = requests.post(url)
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return req.json()
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def start(self):
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url = os.path.join(self.url, 'start')
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req = requests.post(url)
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return req.json()
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def write(self):
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url_write = os.path.join(self.url, 'write')
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url_divider = os.path.join(self.url, 'divider')
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values = zip(self.params['configurations']['byId'][self.pk]['pulses'],
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[x-1 for x in self.params['configurations']['byId'][self.pk]['delays']])
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payload = ''
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for tup in values:
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vals = pack('<HH', *tup)
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payload += '\x85'+vals[0]+'\x84'+vals[1]+'\x85'+vals[2]+'\x84'+vals[3]
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req = requests.post(url_divider,
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data={'divider':int(self.params['configurations']['byId'][self.pk]['clock_divider'])-1})
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if 'ok' not in req.text:
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print 'Error sending divider'
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return False
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req = requests.post(url_write,
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data=b64encode(payload))
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return req.json()
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if __name__ == '__main__':
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import time
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ip = '10.10.10.100'
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filename = './dia.json'
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rc = RCApi(ip)
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rc.load(filename)
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# print rc.status()
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# time.sleep(1)
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# print rc.reset()
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# time.sleep(1)
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# print rc.stop()
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# time.sleep(1)
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print rc.write()
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# time.sleep(1)
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# print rc.start()
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