def __init__(self):
usage = "--user <user-name> [--database <database-name>] [--host <host-name>] [--port <port>]"
parser = OptionParser()
parser.set_usage(usage)
parser.add_option("-u", "--user", dest="user", help="DataHub username")
parser.add_option("-H",
"--host",
dest="host",
help="DataHub server hostname",
default="datahub-experimental.csail.mit.edu")
parser.add_option("-p",
"--port",
dest="port",
help="DataHub server port",
type="int",
default=9000)
parser.add_option("-d",
"--database",
dest="database",
help="DataHub database")
(self.options, self.arg_values) = parser.parse_args()
if not self.options.user:
parser.print_usage()
sys.exit(1)
parser.destroy()
self.password = getpass.getpass('DataHub password for %s: ' %
(self.options.user))
cmd2.Cmd.__init__(self, completekey='tab')
self.client = DataHubClient(host=self.options.host,
port=self.options.port)
try:
database = None
if self.options.database:
database = DHDatabase(name=self.options.database)
con_params = DHConnectionParams(user=self.options.user,
password=self.password,
database=database)
self.con = self.client.connect(con_params)
self.prompt = "datahub> "
except Exception, e:
self.print_line('error: %s' % (e.message))
sys.exit(1)
#!/usr/bin/python
from client.python.dh_client import DataHubClient
from datahub.constants import *
'''
@author: anant bhardwaj
@date: Oct 11, 2013
Sample python code accesing DataHub APIs
'''
# conect to DataHub
client = DataHubClient()
con_params = DHConnectionParams(user=None,
password=None,
database=DHDatabase(name='postgres'))
con = client.connect(con_params=con_params)
result = client.load(con=con, url='demo.person')
for row in result.data.table.rows:
print '\t'.join([c.value for c in row.cells])
print '\n'
