Spark Structured Streaming 'bool' object is not callable, quitting

[Mich Talebzadeh]

Hi,

I am testing something in Spark Structured Streaming, this is a new topic

 Typical kafka json row

      dummy2 = StructType().add("uuid", StringType()).add("timecreated",
TimestampType()).add("status", StringType())

# example
##856095c6-cdec-485b-9da6-d78275bc0a25
{"uuid":"856095c6-cdec-485b-9da6-d78275bc0a25",
"timecreated":"2021-04-21T23:29:16", "status":true"}

  Created the Streaming read


 streamingDummy = self.spark \
                .readStream \
                .format("kafka") \
                .option("kafka.bootstrap.servers",
config['MDVariables']['bootstrapServers'],) \
                .option("schema.registry.url",
config['MDVariables']['schemaRegistryURL']) \
                .option("group.id", config['common']['dummy']) \
                .option("zookeeper.connection.timeout.ms",
config['MDVariables']['zookeeperConnectionTimeoutMs']) \
                .option("rebalance.backoff.ms",
config['MDVariables']['rebalanceBackoffMS']) \
                .option("zookeeper.session.timeout.ms",
config['MDVariables']['zookeeperSessionTimeOutMs']) \
                .option("auto.commit.interval.ms",
config['MDVariables']['autoCommitIntervalMS']) \
                .option("subscribe", config['MDVariables']['topicdummy']) \
                .option("failOnDataLoss", "false") \
                .option("includeHeaders", "true") \
                .option("startingOffsets", "latest") \
                .load() \
                .select(from_json(col("value").cast("string"),
dummy2).alias("dummy_value"))

            streamingDummy.printSchema()
                  *print(streamingDummy.isStreaming())*

When I run it I get


root

 |-- dummy_value: struct (nullable = true)

 |    |-- uuid: string (nullable = true)

 |    |-- timecreated: timestamp (nullable = true)

 |    |-- status: string (nullable = true)


*'bool' object is not callable, quitting*

I cannot figure out the last line!


Thanks


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