# DMAAP_DATAROUTER
			       
## OVERVIEW
  
The Data Routing System project is intended to provide a common framework by which data producers can make data available to data consumers and a way for potential consumers to find feeds with the data they require.  
The delivery of data from these kinds of production systems is the domain of the Data Routing System. Its primary goal is to make it easier to move data from existing applications that may not have been designed from the ground up to share data.
The Data Routing System is different from many existing platforms for distributing messages from producers to consumers which focus on real-time delivery of small messages (on the order of a few kilobytes or so) for more

   Provisioning is implemented as a Java servlet running under Jetty in one JVM
   
   Provisioning data is stored in a MariaDB database
   
   The backup provisioning server and each node is informed any time provisioning data changes
   
   The backup provisioning server and each node may request the complete set of provisioning data at any time
   
   A Node is implemented as a Java servlet running under Jetty in one JVM

Assumptions
    For 95% of all feeds (there will be some exceptions):
	
    Number of Publishing Endpoints per Feed: 1 – 10
	
    Number of Subscribers per Feed: 2 – 10
	
    File Size: 105 – 1010 bytes
	
    with a distribution towards the high end
	
    Frequency of Publishing: 1/day – 10/minute
	
    Lifetime of a Feed: months to years
	
    Lifetime of a Subscription: months to years
	
 
Data Router and Sensitive Data Handling
 
    A publisher of a Data Router feed of sensitive (e.g., PCI, SPI, etc.) data needs to encrypt that data prior to delivering it to the Data Router
	
    The Data Router will distribute that data to all of the subscribers of that feed.
	
    Data Router does not examine the Feed content or enforce any restrictions or Validations on the Feed Content in any way
	
    It is the responsibility of the subscribers to work with the publisher to determine how to decrypt that data
	


 

What the Data Router is NOT:

    Does not support streaming data
	
    Does not tightly couple to any specific publish endpoint or subscriber
	
    Agnostic as to source and sink of data residing in an RDBMS, NoSQL DB, Other DBMS, Flat Files, etc.
	
    Does not transform any published data
	
    Does not “examine” any published data
	
    Does not verify the integrity of a published file
	
    Does not perform any data “cleansing”
	
    Does not store feeds (not a repository or archive)
	
    There is no long-term storage – assumes subscribers are responsive most of the time
	
    Does not encrypt data when queued on a node
	
    Does not provide guaranteed order of delivery
	
    Per-file metadata can be used for ordering
	
   External customers supported is via DITREX (MOTS 18274)
 
 
 

## BUILD  
 
Datarouter can be cloned and repository and builb using Maven 
In the repository 

Go to datarouter-prov in the root

	mvn clean install
	
Go to datarouter-node in the root

	mvn clean install
	 
Project Build will be Successful




## RUN 

Datarouter is a Unix based service 

Pre-requisites to run the service

MariaDB Version 10.2.14

Java JDK 1.8

Install MariaDB and load needed table into the database

Sample sql_init_01.sql is provided in the datarouter-prov/src/main/resources/misc

Go to datarouter-prov module and run the service using main.java 
 
Go to datarouter-node module and run the service using nodemain.java 

Curl Commands to test:

create a feed:

curl -v -X POST -H "Content-Type : application/vnd.att-dr.feed" -H "X-ATT-DR-ON-BEHALF-OF: rs873m" --data-ascii @/opt/app/datartr/addFeed3.txt --post301 --location-trusted  -k https://prov.datarouternew.com:8443

Subscribe to feed:

curl -v -X POST -H "Content-Type: application/vnd.att-dr.subscription" -H "X-ATT-DR-ON-BEHALF-OF: rs873m" --data-ascii @/opt/app/datartr/addSubscriber.txt --post301 --location-trusted -k https://prov.datarouternew.com:8443/subscribe/1

Publish to feed:

curl -v -X PUT --user rs873m:rs873m -H "Content-Type: application/octet-stream" --data-binary @/opt/app/datartr/addFeed3.txt  --post301 --location-trusted -k https://prov.datarouternew.com:8443/publish/1/test1


 

 ## CONFIGURATION 

Recommended 

Environment - Unix based

Java - 1.8

Maven - 3.2.5 

MariaDB - 10.2.14

Self Signed SSL certificates