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Fuse Integration Service - Auto Dealership Management Demo, Part One

This series of blog is based on building an auto dealership management system on Fuse Integration Service. We will be creating three major functions in the system.
  • Sales report tracking 
  • Vehicle inventory status
  • Customer IoT Service
We will be exporting a sales report to a web page, provide current inventory status of available cars through web service. And collect customer data from IoT devices on their car then alert close by shops. It would be better if you have some basic knowledge of Apache Camel before you begin, because I will not explain it in a great detail, I'll put my focus on how it works with the base platform, OpenShift. For Camel basic, you can check out my previous JBoss Fuse workshop. 

I thought this would be the perfect chance to show how Fuse Integration Service can benefit and support microservice architecture, so yes, this application fits in my category of  microservice integration. Each and every function in the application will be divided into small separate deployment modules and are independent from each other. 

In part one, we will be looking at how to create restful webservice, as our API endpoint for the sales tracking report application. 
The content will be in JSON format. The data comes from XML files submitted by reporting application in each branch, and each branch will upload the XML file to a folder in our system. 
For our first microservices, it is going to be just two simple camel route, taking in the XML file, parsing content and transform it into Java bean, stores it in a temporary pool, the other route on the other-hand will output the pool of data into JSON Format.  
First thing first, in order to create a package that can be package to deploy as Fuse Integration Service, we need to 
The XML provided are a list of sales opportunities, in order to break them down into individual pieces, we are going to split the file with the split pattern built-in in Camel.  

Developing Camel Application

This is the first camel route that reads from a file folder, logs the content, split the XML file, transform data into Java bean and then stores everything in a temporary pool . 


 <route id="inputReport">  
  <from uri="file:reportfolder"/>  
  <log message="${body}"/>  
  <to uri="dozer:opptrans?sourceModel=oppxml.Oppo&amp;targetModel=com.redhat.fis.dms.model.Opportunity&amp;unmarshalId=oppxml&amp;mappingFile=transformation.xml"/>  
  <bean ref="opportunityGenerator" method="addOpportunity(${body})"/>  

Dozer transformation:
 <mappings xmlns="" xmlns:xsi="" xsi:schemaLocation="">   
  <field> <a>discount</a> <b>discount</b> </field>  
  <field> <a>custName</a> <b>custName</b> </field>  
  <field> <a>openDate</a> <b>opendate</b> </field>  
  <field> <a>phone</a> <b>phone</b> </field>  
  <field> <a>stage</a> <b>stage</b> </field>  
  <field> <a>type</a> <b>type</b> </field>  
  <field> <a>vehicleId</a> <b>vehicleId</b> </field>  
and configuration in camel context
<bean id="dozer" 

Java Bean:
 package com.redhat.fis.dms.mockprocessor;  
 import java.util.ArrayList;  
 import java.util.HashMap;  
 import java.util.List;  
 import com.redhat.fis.dms.model.Opportunity;  
 public class OpportunityGenerator {  
  List<Opportunity> opportunityList = new ArrayList<Opportunity>();  
  public void addOpportunity(Opportunity opportunity){opportunityList.add(opportunity);}  
  public HashMap<String, ArrayList<ArrayList<String>>> getAllList(){  
  HashMap<String, ArrayList<ArrayList<String>>> resultMap = new HashMap<String, ArrayList<ArrayList<String>>>();  
  ArrayList<ArrayList<String>> data = new ArrayList<ArrayList<String>>();   
  for(Opportunity opportunity: opportunityList){    
   ArrayList<String> opportunityinList = new ArrayList<String>();  
  resultMap.put("data", data);   
  return resultMap;  
and configuration in camel context
 <bean id="dozer" class="org.apache.camel.converter.dozer.DozerTypeConverterLoader"/>  

The second camel route gets the data from the pool and transform the binary content  into JSON format.

 <restConfiguration component="jetty" port="9191"/>  
  <rest path="/AutoDMS">  
   <get uri="/salesTracking">  
    <to uri="direct:salesTracking"/>  
  <route id="salesTracking">  
   <from uri="direct:salesTracking"/>  
   <bean ref="opportunityGenerator" method="getAllList"/>  
    <json prettyPrint="true" library="Jackson"/>  

In this part of the demo, we are exposing a Restful webservice endpoint, therefore we need to set it with the Rest DSL in Camel. 

And That's all. We can then starts to deploy the application onto our PaaS platform OpenShift, if you don't know how to setup Fuse Integration Service, please refer to my older post.

Deploying Application

Since OpenShift is based on Docker and Kubernetes techonology, we need to package our application as a docker image. Don't worry if you don't know what those is, you don't need to know for now, basically, just think of it as a new way of packaging application that includes runtime environment and the way to orchestrate and manage those running application. Fuse Integration Service, hides all these complexity away by provide a "Source to Image" mode to deploy via help from Maven Plugins.

Take a look at the pom.xml we generated in the project, notice it was automatically added with few maven plugins,

First is the docker maven plugin, it helps you with creating the docker file and contacting to docker registry.

The other plugin is the fabric8 plugin, which is going to help you to generate the setup file for Kubernetes.

And lastly it has put together some useful profile so it is easier to commit and deploy your application.

We are going to deploy with the maven with the local deploy, as you can see, it contains many goals, other then the common maven goals like clean and install, to build the application software, we see few unfamiliar commands:

This goal builds the docker file, in our case, we will be build it base on our Fuse Integration Service "jboss-fuse-6/fis-java-openshift:1.0" image template. Here you can also set any environment variable specifically in the container. We also describes the exports ports, with the port elements. In our case, it also generates the running script to start our spring camel application.

This generates the kubernetes.json file. What this json file is actually the OpenShift template, it describes a set of objects by OpenShift, for example services, build configurations, and deployment configurations. This goal for this file is to help us create this template rather then having to create from scratch.

With the json file we created in last step, and pushing it up to the OpenShift.
Normal we have to setup the Kubernetes environment setting in the machine, it'll tell the tool where to push the code to. Since we have already installed the openshift client, it'll find the current login token and namespace by parsing the users ~/.kube/config.

That's the theory part, now, back to our project, in command line, under the project folder, login to OpenShift with it's client tool. Make sure you create a project called demo and deploy the mq-basic application on it, if you have not previously done so.  This will save us from the need to set Kubernetes settings. Then simply type in console.

  • mvn -Pf8-local-deploy

After successfully deploying application on OpenShift, you will see the application on the console.

Let's start playing with this application by upload a sales report xml file to load the sales report into the route.  
  • oc rsync ./reports/ salesreportfile-hzmya:/deployments/reportfolder

Go to the POD view, and click on Connect, this will take us to the application console,

And in the report route, notice it had pick up the xml file and processed it into our bean.

I made a web application that will take the json from the web services we published (
sdasd) , and display it. (/sales/sales.html)

If you go back to the application console, here is the endpoint diagrams that shows all routes, that has been called.

That's all! Thanks!


Scratsh said…
you should try one of this tool for inserting more readbale xml or code:

Sarah Rose said…
eNvent's Automotive Dealer Management Software DMS has proved to be the lifeline for Indian automobile dealers. Our Dealership Management System is user friendly, versatile & cost-effective.

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