springone-demo-app

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Modernizing The Legacy

This repository contains source code and examples from the SpringOne Platform 2016 presentation, "Modernizing the Legacy - How Dish is Adapting its SOA Services for a Cloud First Future" presented by Rob Bennett, Laxmikant Rastogi and Chandra Nemalipuri.

Introduction

This app is for demonstrating the technologies and processes we use at Dish to build Cloud Native applications.

Implementation

Demo app covers following implementations/configurations:

• Spring Boot application
• Gradle
• Exposing a SOAP and REST service(providers)
• Connecting multiple Relational Databases(Oracle JDBC Driver)
• Swagger
• Manifest file(s) for deploying the app into Pivotal Cloud Foundry
• Spring Cloud Config
• Spring Cloud Sleuth and Zipkin
• CI/CD pipelines and deploying app into PCF
• Simulator using Ruby(adapter-api-simulator for simulating dependency app)
• And runthrough Dish development cycle(12 Factor App --> Gitlab --> Jenkins CI --> Artifactory --> Jenkins CD --> App is live in PCF --> Query and visualize data using ELKK Stack and Zipkin)

Build

1. If you are building in Dish update build.gradle to use internal artifacts repo before build.

   $ gradle clean build
   

Running locally:

1. Run either adapter-api-app(Dish internal) or adapter-api-simulator(public project in Github)

2. Update adapter uri accordingly in application.yml

3. Create a run configuration with the following environment variable: spring.profiles.active=dev-local

   $ gradle bootRun -Dspring.profiles.active=dev-local
   

4. SOAP endpoint: http://localhost:8084/ws/Demo.v1_0:demoWS

Sample Request/Response:

The app takes a SOAP request like this:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:demo="http://www.dish.com/wsdl/Demo/Demo-v1.0">
   <soapenv:Header/>
   <soapenv:Body>
      <demo:getTaxQuoteRequest>
         <demo:serviceRequestContext>
            <serviceInteraction>
               <interactionId>i192351734</interactionId>
               <interactionProcessName>demo_request</interactionProcessName>
               <requestId>r9514990</requestId>
               <interactionStep>test</interactionStep>
               <customerFacingTool>SOAPUI</customerFacingTool>
            </serviceInteraction>
            <serviceClientDetails>
               <clientAppHost>localhost</clientAppHost>
               <clientAppTimestamp>2016-07-20T14:25:39.959 MDT</clientAppTimestamp>
               <!--Optional:-->
               <endUserIPAddress>?</endUserIPAddress>
            </serviceClientDetails>
            <!--Optional:-->
            <requestReceivedTimestamp>?</requestReceivedTimestamp>
         </demo:serviceRequestContext>
         <demo:getTaxQuoteInput>
            <location>
               <geographical>
                  <vertexCode>391110000</vertexCode>
               </geographical>
            </location>
            <itemList>
               <count>1</count>
               <!--1 or more repetitions:-->
               <item>
                  <identifier>!+</identifier>
                  <billing>
                     <charge>99.00</charge>
                     <!--Optional:-->
                     <taxGroup>?</taxGroup>
                  </billing>
               </item>
            </itemList>
         </demo:getTaxQuoteInput>
      </demo:getTaxQuoteRequest>
   </soapenv:Body>
</soapenv:Envelope>

and will return a SOAP response like this:

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
   <SOAP-ENV:Header/>
   <SOAP-ENV:Body>
      <ns3:getTaxQuoteResponse xmlns:ns3="http://www.dish.com/wsdl/Demo/Demo-v1.0">
         <ns3:serviceResponseContext>
            <interactionId>i192351734</interactionId>
            <requestId>r9514990</requestId>
            <requestReceivedTimestamp>2016-07-20T15:05:55.309 MDT</requestReceivedTimestamp>
            <responseGeneratedTimestamp>2016-07-20T15:05:55.697 MDT</responseGeneratedTimestamp>
            <serverHostPort>localhost</serverHostPort>
            <serviceDuration>388</serviceDuration>
            <statusCode>0</statusCode>
            <statusMessage/>
            <displayMessage/>
         </ns3:serviceResponseContext>
         <ns3:getTaxQuoteOutput>
            <taxQuote>5.94</taxQuote>
            <itemList>
               <count>1</count>
               <item>
                  <identifier>!+</identifier>
                  <billing>
                     <charge>99.00</charge>
                     <taxGroup>10</taxGroup>
                  </billing>
               </item>
            </itemList>
         </ns3:getTaxQuoteOutput>
      </ns3:getTaxQuoteResponse>
   </SOAP-ENV:Body>
</SOAP-ENV:Envelope>