Developing, managing and opening the hood of JVM REST services / - - PowerPoint PPT Presentation

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Jan 21, 2023 217 likes •484 views

OSGi DevCon / QCon New York 2014 Developing, managing and opening the hood of JVM REST services / Lars Pfannenschmidt @leastangle What is swookiee? / Lars Pfannenschmidt @leastangle Pfannen-what? Fun-an-schmidt Data Products @

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OSGi DevCon / QCon New York 2014

Developing, managing and

pening the

hood of JVM REST services

Lars Pfannenschmidt @leastangle

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What is swookiee?

Lars Pfannenschmidt @leastangle

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Pfannen-what?

Fun-an-schmidt Data Products @ Intuit Data Engineering & Analytics Founder of User Group ★ ★ ★ @mobilecgn ★@leastangle

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What is swookiee?

OSGi Runtime for REST Services JAX-RS 2 Jersey, Jetty, Jackson Services in Java, Groovy, Scala Swagger integration Metrics / Graphite Support JSON Logging Support Remote Controllable (RFC-182) EPL ★ ★ ★ ★ ★ ★ ★ ★ ★

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10

(-6+1) - Services

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Agenda

Building REST Services Swagger documentation Metrics JSON Logging Remote Control ★ ★ ★ ★ ★

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Fizz Buzz

https://flic.kr/p/6ae8KK by Luis Linero - Some rights reserved CC BY 2.0

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Any number divisible by three is replaced by the word fizz and any divisible by five by the word buzz. Numbers divisible by three and five become fizz buzz.

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FizzBuzz v1

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FizzBuzz v2

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Documentation

https://flic.kr/p/dELbZF Books HD by Abhi Sharma - Some rights reserved CC BY 2.0

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FizzBuzz v3

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Alternatives

Good old WADL? [ ] Apiary (http://apiary.io/) RAML (http://raml.org/) ... ★ here ★ ★ ★

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Metrics

Opening the hood

https://flic.kr/p/byHbPG Broken down by orangebrompton - Some rights reserved CC BY-NC-SA 2.0

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FizzBuzz v4

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Logging

https://flic.kr/p/fE5Wgb Pitt River Logs by James Wheeler - Some rights reserved CC BY-NC-SA 2.0

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Enabling JSON Logging

productionLogging = true loggingDirectory = logs Generated logs can be found in logs/osgi- log.json

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Sample Log Entry

{ "timestamp":"1402051840211", "level":"INFO", "thread":"Component Resolve Thread (Bundle 48)", "logger":"com.swookiee.runtime.metrics.MetricsToGraphiteReporter", "message":"Graphite Reporter started using configuration: GraphiteReporterConfiguration [graphiteHost=localhost, graphitePort=2003, reportingIntervalInSeconds=10, reportingEnabled=true, reportingPrefix=Demo]" "context":"default" }

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Messages in JSON?

Map<String, Object> map = new HashMap<>(); map.put("limit", limit); map.put("result", result); logger.info("{}", map); { "timestamp":"1401544478570", "level":"INFO", "thread":"qtp1201555453-33", "logger":"com.swookiee.demo.logging.impl.FizzBuzzService", "message":{ "result":[ "1", "2", "Fizz", "4", "Buzz" ], "limit":5 }, "context":"default" }

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Remote

https://flic.kr/p/hm8mFS

Chernobyl NPP - Control Room No. 2 by Michael Kötter - Some rights reserved CC BY-NC-SA 2.0

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Some REST calls

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Deploy

private SwookieeClient getSwookieeClient() throws SwookieeClientException { SwookieClientBuilder swookieClientBuilder = SwookieClientBuilder .newTarget("localhost") .withPort(8080) .withUsernamePassword("admin", "admin123"); return swookieClientBuilder.create(); } try ( SwookieeClient swookieeClient = getSwookieeClient() ) { String installedBundle = swookieeClient.installBundle(file, true); swookieeClient.startBundle(installedBundle); } catch (SwookieeClientException ex) { logger.error("Could not install/start bundle: '{}'", ex.getMessage(), ex); }

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Future

Release version JVM languages? OAuth2 provider Integration testing ★ ★ ★ ★

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Thank You!

swookiee.com

Lars Pfannenschmidt @leastangle