#!/usr/bin/python
"""
demo client that selects and prints all triples from a server
"""

import pprint, optparse
from sparqlhttp.remotegraph import RemoteGraph
from sparqlhttp.oneshot import run

parser = optparse.OptionParser()
parser.add_option('-s', '--server', help='server endpoint URL')
opts, args = parser.parse_args()

if not opts.server:
    parser.error("--server is required")

graph = RemoteGraph(serverUrl=opts.server, resultFormat='xml')

d = graph.remoteQueryd("SELECT ?s ?p ?o WHERE { ?s ?p ?o }")
def printResult(rows):
    pprint.pprint([(r['s'], r['p'], r['o']) for r in rows])

run(d, printResult)