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gdx2json.py
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import json
import logging
import argparse
from gams import *
import pdb
def getSymbols(db):
symbols = []
for i in db:
symbols.append(i.name)
return symbols
def getSymbolTypes(db):
types = {}
for i in getSymbols(db):
t = str(type(db[i])).split("'")[1].split('.')
types[i] = t[len(t)-1]
return types
def gdx2json(filename):
ws = GamsWorkspace(working_directory = "./")
db = ws.add_database_from_gdx(filename)
symbolTypes = getSymbolTypes(db)
d = {}
for i in symbolTypes.keys():
d[i] = {}
if symbolTypes[i] == 'GamsSet':
if db[i].dimension == 1:
d[i]['type'] = symbolTypes[i]
d[i]['dimension'] = db[i].dimension
d[i]['domain'] = db[i].domains_as_strings
d[i]['number_records'] = db[i].number_records
d[i]['text'] = db[i].text
d[i]['elements'] = [rec.keys[0] for rec in db[i]]
logging.debug('GamsSet %s, entry = %s', i, d[i])
else:
d[i]['type'] = symbolTypes[i]
d[i]['dimension'] = db[i].dimension
d[i]['domain'] = db[i].domains_as_strings
d[i]['number_records'] = db[i].number_records
d[i]['text'] = db[i].text
d[i]['elements'] = [tuple(rec.keys) for rec in db[i]]
logging.debug('GamsSet %s, entry = %s', i, d[i])
elif symbolTypes[i] == 'GamsParameter':
if db[i].dimension == 0:
d[i]['type'] = symbolTypes[i]
d[i]['dimension'] = db[i].dimension
d[i]['domain'] = db[i].domains_as_strings
d[i]['number_records'] = db[i].number_records
d[i]['text'] = db[i].text
d[i]['values'] = db[i].first_record().value
logging.debug('GamsParameter %s, entry = %s', i, d[i])
elif db[i].dimension == 1:
d[i]['type'] = symbolTypes[i]
d[i]['dimension'] = db[i].dimension
d[i]['domain'] = db[i].domains_as_strings
d[i]['number_records'] = db[i].number_records
d[i]['text'] = db[i].text
d[i]['values'] = {}
d[i]['values']['domain'] = [rec.keys[0] for rec in db[i]]
d[i]['values']['data'] = [rec.value for rec in db[i]]
logging.debug('GamsParameter %s, entry = %s', i, d[i])
else:
d[i]['type'] = symbolTypes[i]
d[i]['dimension'] = db[i].dimension
d[i]['domain'] = db[i].domains_as_strings
d[i]['number_records'] = db[i].number_records
d[i]['text'] = db[i].text
d[i]['values'] = {}
d[i]['values']['domain'] = [tuple(rec.keys) for rec in db[i]]
d[i]['values']['data'] = [rec.value for rec in db[i]]
logging.debug('GamsParameter %s, entry = %s', i, d[i])
elif symbolTypes[i] == 'GamsVariable':
if db[i].dimension == 0:
d[i]['type'] = symbolTypes[i]
d[i]['dimension'] = db[i].dimension
d[i]['domain'] = db[i].domains_as_strings
d[i]['number_records'] = db[i].number_records
d[i]['text'] = db[i].text
d[i]['vartype'] = db[i].vartype
d[i]['values'] = {}
d[i]['values']['domain'] = []
d[i]['values']['lower'] = db[i].first_record().lower
d[i]['values']['level'] = db[i].first_record().level
d[i]['values']['upper'] = db[i].first_record().upper
d[i]['values']['scale'] = db[i].first_record().scale
d[i]['values']['marginal'] = db[i].first_record().marginal
logging.debug('GamsVariable %s, entry = %s', i, d[i])
elif db[i].dimension == 1:
d[i]['type'] = symbolTypes[i]
d[i]['dimension'] = db[i].dimension
d[i]['domain'] = db[i].domains_as_strings
d[i]['number_records'] = db[i].number_records
d[i]['text'] = db[i].text
d[i]['vartype'] = db[i].vartype
d[i]['values'] = {}
d[i]['values']['domain'] = [rec.keys[0] for rec in db[i]]
d[i]['values']['lower'] = [rec.lower for rec in db[i]]
d[i]['values']['level'] = [rec.level for rec in db[i]]
d[i]['values']['upper'] = [rec.upper for rec in db[i]]
d[i]['values']['scale'] = [rec.scale for rec in db[i]]
d[i]['values']['marginal'] = [rec.marginal for rec in db[i]]
logging.debug('GamsVariable %s, entry = %s', i, d[i])
else:
d[i]['type'] = symbolTypes[i]
d[i]['dimension'] = db[i].dimension
d[i]['domain'] = db[i].domains_as_strings
d[i]['number_records'] = db[i].number_records
d[i]['text'] = db[i].text
d[i]['vartype'] = db[i].vartype
d[i]['values'] = {}
d[i]['values']['domain'] = [tuple(rec.keys) for rec in db[i]]
d[i]['values']['lower'] = [rec.lower for rec in db[i]]
d[i]['values']['level'] = [rec.level for rec in db[i]]
d[i]['values']['upper'] = [rec.upper for rec in db[i]]
d[i]['values']['scale'] = [rec.scale for rec in db[i]]
d[i]['values']['marginal'] = [rec.marginal for rec in db[i]]
logging.debug('GamsVariable %s, entry = %s', i, d[i])
elif symbolTypes[i] == 'GamsEquation':
if db[i].dimension == 0:
d[i]['type'] = symbolTypes[i]
d[i]['dimension'] = db[i].dimension
d[i]['domain'] = db[i].domains_as_strings
d[i]['number_records'] = db[i].number_records
d[i]['text'] = db[i].text
d[i]['values'] = {}
d[i]['values']['domain'] = []
d[i]['values']['lower'] = db[i].first_record().lower
d[i]['values']['level'] = db[i].first_record().level
d[i]['values']['upper'] = db[i].first_record().upper
d[i]['values']['scale'] = db[i].first_record().scale
d[i]['values']['marginal'] = db[i].first_record().marginal
logging.debug('GamsEquation %s, entry = %s', i, d[i])
elif db[i].dimension == 1:
d[i]['type'] = symbolTypes[i]
d[i]['dimension'] = db[i].dimension
d[i]['domain'] = db[i].domains_as_strings
d[i]['number_records'] = db[i].number_records
d[i]['text'] = db[i].text
d[i]['values'] = {}
d[i]['values']['domain'] = [rec.keys[0] for rec in db[i]]
d[i]['values']['lower'] = [rec.lower for rec in db[i]]
d[i]['values']['level'] = [rec.level for rec in db[i]]
d[i]['values']['upper'] = [rec.upper for rec in db[i]]
d[i]['values']['scale'] = [rec.scale for rec in db[i]]
d[i]['values']['marginal'] = [rec.marginal for rec in db[i]]
logging.debug('GamsEquation %s, entry = %s', i, d[i])
else:
d[i]['type'] = symbolTypes[i]
d[i]['dimension'] = db[i].dimension
d[i]['domain'] = db[i].domains_as_strings
d[i]['number_records'] = db[i].number_records
d[i]['text'] = db[i].text
d[i]['values'] = {}
d[i]['values']['domain'] = [tuple(rec.keys) for rec in db[i]]
d[i]['values']['lower'] = [rec.lower for rec in db[i]]
d[i]['values']['level'] = [rec.level for rec in db[i]]
d[i]['values']['upper'] = [rec.upper for rec in db[i]]
d[i]['values']['scale'] = [rec.scale for rec in db[i]]
d[i]['values']['marginal'] = [rec.marginal for rec in db[i]]
logging.debug('GamsEquation %s, entry = %s', i, d[i])
return d
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('--in', action="store", dest='inFilename', default='out.gdx', type=str)
args = parser.parse_args()
filename = args.inFilename
logging.basicConfig(filename=filename.split('.')[0]+'.log', filemode='w', level=logging.DEBUG)
a = gdx2json(filename)
with open(filename.split('.')[0]+'.json', 'w') as outfile:
json.dump(a, outfile, indent=4)