def test_connection():
# see https://github.com/apache/tinkerpop/blob/master/gremlin-python/src/main/jython/gremlin_python/driver/driver_remote_connection.py
remoteTraversal=remote.RemoteTraversal()
g = remoteTraversal.g()
t=g.V()
remoteConnection=remoteTraversal.remoteConnection
# see https://github.com/apache/tinkerpop/blob/master/gremlin-python/src/main/jython/gremlin_python/driver/client.py
client=remoteConnection._client
connection=client._get_connection()
message = RequestMessage('traversal', 'bytecode', {'gremlin': t.bytecode, 'aliases': {'g': client._traversal_source}})
results_set = connection.write(message).result()
future = results_set.all()
results = future.result()
print ("%d results" % (len(results)))
#assert len(results) == 6
assert isinstance(results, list)
assert results_set.done.done()
#assert 'host' in results_set.status_attributes
print (results_set.status_attributes)
def test_createGraphvizGraph():
# make sure we re-load the tinkerpop modern example
remoteTraversal = remote.RemoteTraversal()
remoteTraversal.load("tinkerpop-modern.xml")
# start a graphviz
dot = Digraph(comment='Modern')
# get vertice properties including id and label as dicts
for vDict in g.V().valueMap(True).toList():
# uncomment to debug
# print vDict
# get id and label
vId = vDict[T.id]
vLabel = vDict[T.label]
# greate a graphviz node label
# name property is alway there
gvLabel = r"%s\n%s\nname=%s" % (vId, vLabel, vDict["name"][0])
# if there is an age property add it to the label
if "age" in vDict:
gvLabel = gvLabel + r"\nage=%s" % (vDict["age"][0])
# create a graphviz node
dot.node("node%d" % (vId), gvLabel)
# loop over all edges
for e in g.E():
# get the detail information with a second call per edge (what a pitty to be so inefficient ...)
eDict = g.E(e.id).valueMap(True).next()
# uncomment if you'd like to debug
# print (e,eDict)
# create a graphviz label
geLabel = r"%s\n%s\nweight=%s" % (e.id, e.label, eDict["weight"])
# add a graphviz edge
dot.edge("node%d" % (e.outV.id), "node%d" % (e.inV.id), label=geLabel)
# modify the styling see http://www.graphviz.org/doc/info/attrs.html
dot.edge_attr.update(arrowsize='2', penwidth='2')
dot.node_attr.update(style='filled', fillcolor="#A8D0E4")
# print the source code
print(dot.source)
# render without viewing - default is creating a pdf file
dot.render('/tmp/modern.gv', view=False)
# check that the pdf file exists
assert os.path.isfile('/tmp/modern.gv.pdf')
# see
# http://wiki.bitplan.com/index.php/Gremlin_python#Getting_Started
from tutorial import remote
from gremlin_python.process.graph_traversal import GraphTraversal
# initialize a remote traversal
remoteTraversal = remote.RemoteTraversal()
g = remoteTraversal.g()
# in TinkerGraph this is the first id
id1 = 1
# convert object to string and print out for debugging
def asString(object):
text = str(object)
print(text)
return text
# get id of Marko's vertex which is usually 1 but might be different e.g.
# when Neo4j is used
def test_tutorial0():
global id1
l = g.V().toList()
id1 = l[0].id
# Marko's id might not be 1
# print (id1)
# http://wiki.bitplan.com/index.php/Gremlin_python#g.V.28.29_-_the_vertices
#gremlin> g.V() //(1)
def test_LoadModern():
remoteTraversal = remote.RemoteTraversal()
remoteTraversal.load("tinkerpop-modern.xml")
# see https://github.com/WolfgangFahl/gremlin-python-tutorial/blob/master/test_001.py
from tutorial import remote
# initialize a remote traversal
g = remote.RemoteTraversal().g()
# test the number of vertices
def test_LoadModern():
remoteTraversal = remote.RemoteTraversal()
remoteTraversal.load("tinkerpop-modern.xml")
# call the loadModern test
test_LoadModern()