From dev-return-2359-archive-asf-public=cust-asf.ponee.io@datafu.apache.org Sun Jul 14 15:04:43 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 4E20E18066C for ; Sun, 14 Jul 2019 17:04:43 +0200 (CEST) Received: (qmail 9471 invoked by uid 500); 14 Jul 2019 15:04:42 -0000 Mailing-List: contact dev-help@datafu.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@datafu.apache.org Delivered-To: mailing list dev@datafu.apache.org Received: (qmail 9460 invoked by uid 99); 14 Jul 2019 15:04:42 -0000 Received: from ec2-52-202-80-70.compute-1.amazonaws.com (HELO gitbox.apache.org) (52.202.80.70) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 14 Jul 2019 15:04:42 +0000 From: GitBox To: dev@datafu.apache.org Subject: [GitHub] [datafu] rjurney commented on a change in pull request #15: Add Spark functionality to DataFu, datafu-spark Message-ID: <156311667738.10605.16097842723208937910.gitbox@gitbox.apache.org> Date: Sun, 14 Jul 2019 15:04:37 -0000 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit rjurney commented on a change in pull request #15: Add Spark functionality to DataFu, datafu-spark URL: https://github.com/apache/datafu/pull/15#discussion_r303248340 ########## File path: datafu-spark/src/main/resources/pyspark_utils/bridge_utils.py ########## @@ -0,0 +1,72 @@ +# 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. + +import os + +from py4j.java_gateway import JavaGateway, GatewayClient +from pyspark.conf import SparkConf +from pyspark.context import SparkContext +from pyspark.sql import SparkSession + +# use jvm gateway to create a java class instance by full-qualified class name +def _getjvm_class(gateway, fullClassName): + return gateway.jvm.java.lang.Thread.currentThread().getContextClassLoader().loadClass(fullClassName).newInstance() + + +class Context(object): + + def __init__(self): + from py4j.java_gateway import java_import + """When running a Python script from Scala - this function is called + by the script to initialize the connection to the Java Gateway and get the spark context. + code is basically copied from: + https://github.com/apache/zeppelin/blob/master/spark/interpreter/src/main/resources/python/zeppelin_pyspark.py#L30 Review comment: url is uneven with rest of comment. Should it be even? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: users@infra.apache.org With regards, Apache Git Services