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examples.py
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#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from .graphframe import GraphFrame
__all__ = ['Graphs']
class Graphs(object):
"""
Example GraphFrames
"""
def __init__(self, sqlContext):
"""
:param sqlContext: SQLContext
"""
self._sql = sqlContext
self._sc = sqlContext._sc
def friends(self):
"""
A GraphFrame of friends in a (fake) social network.
"""
sqlContext = self._sql
# Vertex DataFrame
v = sqlContext.createDataFrame([
("a", "Alice", 34),
("b", "Bob", 36),
("c", "Charlie", 30),
("d", "David", 29),
("e", "Esther", 32),
("f", "Fanny", 36)
], ["id", "name", "age"])
# Edge DataFrame
e = sqlContext.createDataFrame([
("a", "b", "friend"),
("b", "c", "follow"),
("c", "b", "follow"),
("f", "c", "follow"),
("e", "f", "follow"),
("e", "d", "friend"),
("d", "a", "friend")
], ["src", "dst", "relationship"])
# Create a GraphFrame
return GraphFrame(v, e)