Timothy Spann
- Visual Code with Spring & Java 11
- Set an environment variable with your api key code from airnow
- Point to your Apache Pulsar cluster, if you are using StreamNative cloud I have SSL and configuration in the config class
airnowapi.url=${AIRPORTNOWAPIURL}
topic.name=persistent://public/default/airquality
producer.name=airquality
send.timeout=60
security.mode=on
#off
#pulsar.service.url=pulsar://pulsar1:6650
pulsar.service.url=pulsar+ssl://demo.demo.snio.cloud:6651
pulsar.oauth2.audience=urn:sn:pulsar:demo:demo-cluster
pulsar.oauth2.credentials-url=file:///Users/tspann/Downloads/sndemo-tspann.json
pulsar.oauth2.issuer-url=https://auth.streamnative.cloud/
val dfPulsar = spark.readStream.format("pulsar").option("service.url", "pulsar://pulsar1:6650").option("admin.url", "http://pulsar1:8080").option("topic", "persistent://public/default/airquality").load()
dfPulsar.printSchema()
scala> dfPulsar.printSchema()
root
|-- additionalProperties: map (nullable = true)
| |-- key: string
| |-- value: struct (valueContainsNull = false)
|-- aqi: integer (nullable = true)
|-- category: struct (nullable = true)
| |-- additionalProperties: map (nullable = true)
| | |-- key: string
| | |-- value: struct (valueContainsNull = false)
| |-- name: string (nullable = true)
| |-- number: integer (nullable = true)
|-- dateObserved: string (nullable = true)
|-- hourObserved: integer (nullable = true)
|-- latitude: double (nullable = true)
|-- localTimeZone: string (nullable = true)
|-- longitude: double (nullable = true)
|-- parameterName: string (nullable = true)
|-- reportingArea: string (nullable = true)
|-- stateCode: string (nullable = true)
|-- __key: binary (nullable = true)
|-- __topic: string (nullable = true)
|-- __messageId: binary (nullable = true)
|-- __publishTime: timestamp (nullable = true)
|-- __eventTime: timestamp (nullable = true)
|-- __messageProperties: map (nullable = true)
| |-- key: string
| |-- value: string (valueContainsNull = true)
## Example Queries
val pQuery = dfPulsar.selectExpr("*").writeStream.format("console").option("truncate", false).start()
val pQuery = dfPulsar.selectExpr("CAST(__key AS STRING)",
"CAST(aqi AS INTEGER)",
"CAST(dateObserved AS STRING)",
"CAST(hourObserved AS INTEGER)",
"CAST(latitude AS DOUBLE)",
"CAST(localTimeZone AS STRING)",
"CAST(longitude AS DOUBLE)",
"CAST(parameterName AS STRING)",
"CAST(reportingArea AS STRING)",
"CAST(stateCode AS STRING)")
.as[(String, Integer, String, Integer, Double, String, Double, String, String, String)]
.writeStream.format("csv")
.option("truncate", "false")
.option("header", true)
.option("path", "/opt/demo/airquality")
.option("checkpointLocation", "/tmp/checkpoint")
.start()
pQuery.explain()
pQuery: org.apache.spark.sql.DataFrame = [__key: string, aqi: int ... 8 more fields]
scala> .as[(String, Integer, String, Integer, Double, String, Double, String, String, String)]
res7: org.apache.spark.sql.Dataset[(String, Integer, String, Integer, Double, String, Double, String, String, String)] = [__key: string, aqi: int ... 8 more fields]
scala> .writeStream.format("csv")
res8: org.apache.spark.sql.streaming.DataStreamWriter[(String, Integer, String, Integer, Double, String, Double, String, String, String)] = org.apache.spark.sql.streaming.DataStreamWriter@28af99b4
scala> .option("truncate", "false")
res9: org.apache.spark.sql.streaming.DataStreamWriter[(String, Integer, String, Integer, Double, String, Double, String, String, String)] = org.apache.spark.sql.streaming.DataStreamWriter@28af99b4
scala> .option("header", true)
res10: org.apache.spark.sql.streaming.DataStreamWriter[(String, Integer, String, Integer, Double, String, Double, String, String, String)] = org.apache.spark.sql.streaming.DataStreamWriter@28af99b4
scala> .option("path", "/opt/demo/airquality")
res11: org.apache.spark.sql.streaming.DataStreamWriter[(String, Integer, String, Integer, Double, String, Double, String, String, String)] = org.apache.spark.sql.streaming.DataStreamWriter@28af99b4
scala> .option("checkpointLocation", "/tmp/checkpoint")
res12: org.apache.spark.sql.streaming.DataStreamWriter[(String, Integer, String, Integer, Double, String, Double, String, String, String)] = org.apache.spark.sql.streaming.DataStreamWriter@28af99b4
scala> .start()
22/04/07 17:43:34 WARN ResolveWriteToStream: spark.sql.adaptive.enabled is not supported in streaming DataFrames/Datasets and will be disabled.
res13: org.apache.spark.sql.streaming.StreamingQuery = org.apache.spark.sql.execution.streaming.StreamingQueryWrapper@29b96be0
pQuery.explain()
== Physical Plan ==
*(1) Project [cast(__key#28 as string) AS __key#156, aqi#18, dateObserved#20, hourObserved#21, latitude#22, localTimeZone#23, longitude#24, parameterName#25, reportingArea#26, stateCode#27]
+- StreamingRelation pulsar, [additionalProperties#17, aqi#18, category#19, dateObserved#20, hourObserved#21, latitude#22, localTimeZone#23, longitude#24, parameterName#25, reportingArea#26, stateCode#27, __key#28, __topic#29, __messageId#30, __publishTime#31, __eventTime#32, __messageProperties#33]
drwxr-xr-x 2 root root 4096 Apr 7 17:44 _spark_metadata
-rw-r--r-- 1 root root 282 Apr 7 17:44 part-00000-249b23ad-ed90-4cd6-a8d1-3adbe7976815-c000.csv
-rw-r--r-- 1 root root 192 Apr 7 17:44 part-00000-24a6f1a6-1b71-4087-ac53-67739a1090d1-c000.csv
-rw-r--r-- 1 root root 282 Apr 7 17:44 part-00000-b3c5c7e8-a06e-4aa2-a321-45ce213e8bd4-c000.csv
-rw-r--r-- 1 root root 192 Apr 7 17:44 part-00000-ad4e60c8-6d55-4cd8-aea4-a5314272dc25-c000.csv
-rw-r--r-- 1 root root 107 Apr 7 17:43 part-00000-3c10eaf9-17e9-46fe-b58b-d8121f02c850-c000.csv
root@pulsar1:/opt/demo/airquality# cat part-00000-249b23ad-ed90-4cd6-a8d1-3adbe7976815-c000.csv
__key,aqi,dateObserved,hourObserved,latitude,localTimeZone,longitude,parameterName,reportingArea,stateCode
8107a050-1c59-4d67-aabd-9752156662c5,16,2022-04-07,16,33.65,EST,-84.43,PM2.5,Atlanta,GA
11bd646a-f464-4035-9095-3376e5a55c8e,14,2022-04-07,16,33.65,EST,-84.43,PM10,Atlanta,GA
export AIRPORTNOWAPIURL="https://www.airnowapi.org/aq/observation/zipCode/current/?format=application/json&zipCode=30313&distance=25&API_KEY=THISISMYKEYITISCOOL
[INFO] --- spring-boot-maven-plugin:2.7.0:run (default-cli) @ airquality ---
[INFO] Attaching agents: []
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.7.0)
2022-04-07 14:21:25.852 INFO 74819 --- [ main] d.d.airquality.airquality.AirQualityApp : Starting AirQualityApp using Java 17.0.1 on Timothys-mbp.fios-router.home with PID 74819 (/Users/tspann/Documents/code/airquality/airquality/target/classes started by tspann in /Users/tspann/Documents/code/airquality/airquality)
2022-04-07 14:21:25.854 INFO 74819 --- [ main] d.d.airquality.airquality.AirQualityApp : No active profile set, falling back to 1 default profile: "default"
2022-04-07 14:21:26.580 WARN 74819 --- [ main] .i.n.r.d.DnsServerAddressStreamProviders : Can not find org.apache.pulsar.shade.io.netty.resolver.dns.macos.MacOSDnsServerAddressStreamProvider in the classpath, fallback to system defaults. This may result in incorrect DNS resolutions on MacOS.
2022-04-07 14:21:26.922 INFO 74819 --- [ main] o.s.b.web.embedded.netty.NettyWebServer : Netty started on port 8080
2022-04-07 14:21:26.928 INFO 74819 --- [ main] d.d.airquality.airquality.AirQualityApp : Started AirQualityApp in 1.312 seconds (JVM running for 1.553)
2022-04-07 14:21:28.412 INFO 74819 --- [r-client-io-1-1] o.a.pulsar.client.impl.ConnectionPool : [[id: 0xd6d7c47b, L:/192.168.1.63:57337 - R:pulsar1.fios-router.home/192.168.1.230:6650]] Connected to server
2022-04-07 14:21:28.466 INFO 74819 --- [r-client-io-1-1] o.a.p.c.impl.ProducerStatsRecorderImpl : Starting Pulsar producer perf with config: {"topicName":"persistent://public/default/airquality","producerName":"airquality","sendTimeoutMs":600000,"blockIfQueueFull":false,"maxPendingMessages":1000,"maxPendingMessagesAcrossPartitions":50000,"messageRoutingMode":"RoundRobinPartition","hashingScheme":"JavaStringHash","cryptoFailureAction":"FAIL","batchingMaxPublishDelayMicros":1000,"batchingPartitionSwitchFrequencyByPublishDelay":10,"batchingMaxMessages":1000,"batchingMaxBytes":131072,"batchingEnabled":true,"chunkingEnabled":false,"compressionType":"NONE","initialSequenceId":null,"autoUpdatePartitions":true,"autoUpdatePartitionsIntervalSeconds":60,"multiSchema":true,"accessMode":"Shared","lazyStartPartitionedProducers":false,"properties"urrentLookupRequest":5000,"maxLookupRequest":50000,"maxLookupRedirects":20,"maxNumberOfRejectedRequestPerConnection":50,"keepAliveIntervalSeconds":30,"connectionTimeoutMs":10000,"requestTimeoutMs":60000,"initialBackoffIntervalNanos":100000000,"maxBackoffIntervalNanos":60000000000,"enableBusyWait":false,"listenerName":null,"useKeyStoreTls":false,"sslProvider":null,"tlsTrustStoreType":"JKS","tlsTrustStorePath":null,"tlsTrustStorePassword":null,"tlsCiphers":[],"tlsProtocols":[],"memoryLimitBytes":0,"proxyServiceUrl":null,"proxyProtocol":null,"enableTransaction":false,"socks5ProxyAddress":null,"socks5ProxyUsername":null,"socks5ProxyPassword":null}
2022-04-07 14:21:28.486 INFO 74819 --- [r-client-io-1-1] o.a.pulsar.client.impl.ConnectionPool : [[id: 0xcbd932d6, L:/192.168.1.63:57338 - R:pulsar1.fios-router.home/192.168.1.230:6650]] Connected to server
2022-04-07 14:21:28.487 INFO 74819 --- [r-client-io-1-1] org.apache.pulsar.client.impl.ClientCnx : [id: 0xcbd932d6, L:/192.168.1.63:57338 - R:pulsar1.fios-roeated producer on cnx [id: 0xcbd932d6, L:/192.168.1.63:57338 - R:pulsar1.fios-router.home/192.168.1.230:6650]
2022-04-07 14:21:28.525 WARN 74819 --- [ main] c.s.circe.checksum.Crc32cIntChecksum : Failed to load Circe JNI library. Falling back to Java based CRC32c provider
2022-04-07 14:21:28.537 INFO 74819 --- [r-client-io-1-1] o.a.pulsar.client.impl.ProducerImpl : [persistent://public/default/airquality] [airquality] Closed Producer
2022-04-07 14:21:28.546 INFO 74819 --- [r-client-io-1-1] o.a.p.c.impl.ProducerStatsRecorderImpl : Starting Pulsar producer perf with config: {"topicName":"persistent://public/default/airquality","producerName":"airquality","sendTimeoutMs":600000,"blockIfQueueFull":false,"maxPendingMessages":1000,"maxPendingMessagesAcrossPartitions":50000,"messageRoutingMode":"RoundRobinPartition","hashingScheme":"JavaStringHash","cryptoFailureAction":"FAIL","batchingMaxPublishDelayMicros":1000,"batchingPartitionSwitchFrequencyByPublishDelay":10,"batchingMaxMessages":1000,"operationTimeoutMs":30000,"lookupTimeoutMs":30000,"statsIntervalSeconds":60,"numIoThreads":1,"numListenerThreads":1,"connectionsPerBroker":1,"useTcpNoDelay":true,"useTls":false,"tlsTrustCertsFilePath":"","tlsAllowInsecureConnection":false,"tlsHostnameVerificationEnable":false,"concurrentLookupRequest":5000,"maxLookupRequest":50000,"maxLookupRedirects":20,"maxNumberOfRejectedRequestPerConnection":50,"keepAliveIntervalSeconds":30,"connectionTimeoutMs":10000,"requestTimeoutMs":60000,"initialBackoffIntervalNanos":100000000,"maxBackoffIntervalNanos":60000000000,"enableBusyWait":false,"listenerName":null,"useKeyStoreTls":false,"sslProvider":null,"tlsTrustStoreType":"JKS","tlsTrustStorePath":null,"tlsTrustStorePassword":null,"tlsCiphers":[],"tlsProtocols":[],"memoryLimitBytes":0,"proxyServiceUrl":null,"proxyProtocol":null,"enableTransaction":false,"socks5ProxyAddress":null,"socks5ProxyUsername":null,"socks5ProxyPassword":null}
2022-04-07 14:21:28.552 INFO 74819 --- [r-client-io-1-1] o.a.pulsar.client.impl.Produsar.client.impl.ProducerImpl : [persistent://public/default/airquality] [airquality] Closed Producer
2022-04-07 14:21:28.571 INFO 74819 --- [r-client-io-1-1] o.a.p.c.impl.ProducerStatsRecorderImpl : Starting Pulsar producer perf with config: {"topicName":"persistent://public/default/airquality","producerName":"airquality","sendTimeoutMs":600000,"blockIfQueueFull":false,"maxPendingMessages":1000,"maxPendingMessagesAcrossPartitions":50000,"messageRoutingMode":"RoundRobinPartition","hashingScheme":"JavaStringHash","cryptoFailureAction":"FAIL","batchingMaxPublishDelayMicros":1000,"batchingPartitionSwitchFrequencyByPublishDelay":10,"batchingMaxM"initialSequenceId":null,"autoUpdatePartitions":true,"autoUpdats":20,"maxNumberOfRejectedRequestPerConnection":50,"keepAliveIntervalSeconds":30,"connectionTimeoutMs":10000,"requestTimeoutMs":60000,"initialBackoffIntervalNanos":100000000,"maxBackoffInte0xcbd932d6, L:/192.168.1.63:57338 - R:pulsar1.fios-router.home/192.168.1.230:6650]
2022-04-07 14:21:28.582 INFO 74819 --- [r-client-io-1-1] o.a.pulsar.client.impl.ProducerImpl
CREATE CATALOG pulsar WITH (
'type' = 'pulsar',
'service-url' = 'pulsar://pulsar1:6650',
'admin-url' = 'http://pulsar1:8080',
'format' = 'json'
);
USE CATALOG pulsar;
set table.dynamic-table-options.enabled = true;
SHOW TABLES;
Flink SQL> describe airquality;
+----------------------+-----------------------------------------------------------------------------------------------+------+-----+--------+-----------+
| name | type | null | key | extras | watermark |
+----------------------+-----------------------------------------------------------------------------------------------+------+-----+--------+-----------+
| additionalProperties | MAP<STRING NOT NULL, ROW<> NOT NULL> | true | | | |
| aqi | INT | true | | | |
| category | ROW<`additionalProperties` MAP<STRING NOT NULL, ROW<> NOT NULL>, `name` STRING, `number` INT> | true | | | |
| dateObserved | STRING | true | | | |
| hourObserved | INT | true | | | |
| latitude | DOUBLE | true | | | |
| localTimeZone | STRING | true | | | |
| longitude | DOUBLE | true | | | |
| parameterName | STRING | true | | | |
| reportingArea | STRING | true | | | |
| stateCode | STRING | true | | | |
+----------------------+-----------------------------------------------------------------------------------------------+------+-----+--------+-----------+
select aqi, parameterName, dateObserved, hourObserved, latitude, longitude, localTimeZone, stateCode, reportingArea from airquality
select max(aqi) as MaxAQI, parameterName, reportingArea from airquality group by parameterName, reportingArea;
select max(aqi) as MaxAQI, min(aqi) as MinAQI, avg(aqi) as AvgAQI, count(aqi) as RowCount, parameterName, reportingArea from airquality group by parameterName, reportingArea;
----- got message -----
key:[2e725251-c977-46b4-ae81-45a675a1a473], properties:[], content:{"dateObserved":"2022-04-07 ","hourObserved":13,"localTimeZone":"EST","reportingArea":"Atlanta","stateCode":"GA","latitude":33.65,"longitude":-84.43,"parameterName":"O3","aqi":40,"category":{"number":1,"name":"Good","additionalProperties":{}},"additionalProperties":{}}
----- got message -----
key:[c0ec765d-38b9-4416-bb27-daa80e7654ff], properties:[], content:{"dateObserved":"2022-04-07 ","hourObserved":13,"localTimeZone":"EST","reportingArea":"Atlanta","stateCode":"GA","latitude":33.65,"longitude":-84.43,"parameterName":"PM2.5","aqi":18,"category":{"number":1,"name":"Good","additionalProperties":{}},"additionalProperties":{}}
----- got message -----
key:[7a7f567a-b9d7-470e-992e-86a2c24c9ce8], properties:[], content:{"dateObserved":"2022-04-07 ","hourObserved":13,"localTimeZone":"EST","reportingArea":"Atlanta","stateCode":"GA","latitude":33.65,"longitude":-84.43,"parameterName":"PM10","aqi":17,"category":{"number":1,"name":"Good","additionalProperties":{}},"additionalProperties":{}}
- https://docs.airnowapi.org/
- https://docs.airnowapi.org/webservices
- https://www.airnow.gov/
- https://community.cloudera.com/t5/Community-Articles/Tracking-Air-Quality-with-HDP-and-HDF-Part-1-Apache-NiFi/ta-p/248265
We are using Spring Boot 2.7.0 which does not have this issue.
https://thenewstack.io/springshell-brings-hell-to-java-developers/
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