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Diffstat (limited to 'python/pyspark/streaming/mqtt.py')
| -rw-r--r-- | python/pyspark/streaming/mqtt.py | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/python/pyspark/streaming/mqtt.py b/python/pyspark/streaming/mqtt.py deleted file mode 100644 index 8848a70c75..0000000000 --- a/python/pyspark/streaming/mqtt.py +++ /dev/null @@ -1,70 +0,0 @@ -# -# 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 py4j.protocol import Py4JJavaError - -from pyspark.storagelevel import StorageLevel -from pyspark.serializers import UTF8Deserializer -from pyspark.streaming import DStream - -__all__ = ['MQTTUtils'] - - -class MQTTUtils(object): - - @staticmethod - def createStream(ssc, brokerUrl, topic, - storageLevel=StorageLevel.MEMORY_AND_DISK_2): - """ - Create an input stream that pulls messages from a Mqtt Broker. - - :param ssc: StreamingContext object - :param brokerUrl: Url of remote mqtt publisher - :param topic: topic name to subscribe to - :param storageLevel: RDD storage level. - :return: A DStream object - """ - try: - helper = ssc._jvm.org.apache.spark.streaming.mqtt.MQTTUtilsPythonHelper() - except TypeError as e: - if str(e) == "'JavaPackage' object is not callable": - MQTTUtils._printErrorMsg(ssc.sparkContext) - raise - - jlevel = ssc._sc._getJavaStorageLevel(storageLevel) - jstream = helper.createStream(ssc._jssc, brokerUrl, topic, jlevel) - return DStream(jstream, ssc, UTF8Deserializer()) - - @staticmethod - def _printErrorMsg(sc): - print(""" -________________________________________________________________________________________________ - - Spark Streaming's MQTT libraries not found in class path. Try one of the following. - - 1. Include the MQTT library and its dependencies with in the - spark-submit command as - - $ bin/spark-submit --packages org.apache.spark:spark-streaming-mqtt:%s ... - - 2. Download the JAR of the artifact from Maven Central http://search.maven.org/, - Group Id = org.apache.spark, Artifact Id = spark-streaming-mqtt-assembly, Version = %s. - Then, include the jar in the spark-submit command as - - $ bin/spark-submit --jars <spark-streaming-mqtt-assembly.jar> ... -________________________________________________________________________________________________ -""" % (sc.version, sc.version)) |