API management solution

Due curiosity tried to understand API Management Solution(AMS) is, found few good pieces.

What AMS tools available in market:

http://www.mashery.com/

http://www.3scale.net/

http://apiaxle.com/

http://apigee.com/

https://code.google.com/p/varnish-apikey/

http://www.webservius.com/

http://apigrove.net/

What your AMS should provide:

http://techcrunch.com/2012/11/11/5-rules-for-api-management/

As a developer what are guidelines you need to follow:

http://www.3scale.net/2010/09/api-design-development-selected-resources/

Your enterprise APIs are free but different to track, you want to charge for your API usages, check http://blog.maartenballiauw.be/post/2012/01/20/Tracking-API-usage-with-Google-Analytics.aspx

Comments invited :) !

JCAPS asadmin

1) as developper you configure your (dev) properties in the Connectivity Map (CM) and the Environment External Application (EA) inbound and outbound properties;

2) then you extract the configuration into a file :asadmin extract-caps-application-configuration myear.ear

3) and upload this file to your testing/prod Glassfish: asadmin import-caps-configuration --host %HOST% --port %PORT% --user admin --passwordfile ...\passwordfile caps-config

4) in Glassfish\Common Task\CAPS\Env and CM Override you adjust the properties according to the environment! (and restart the ear)

5) enjoy JCAPS efficiency [optional]

Starting with Python

To start you definately have to download it, from

http://www.sthurlow.com/python/lesson01/

Othewise you can use online tool: http://www.learnpython.org/

try some examples: http://www.sthurlow.com/python/lesson03/



http://docs.oracle.com/cd/E21764_01/apirefs.1111/e13952/taskhelp/console/RecordWLSTScripts.html

http://java.dzone.com/articles/oracle-service-bus-%E2%80%93-stuck

SOA project estimation

http://www.servicetechmag.com/I68/1112-4

Relation between UDDI and WSDL

http://msdn.microsoft.com/en-us/architecture/aa699437.a5f1(l=en-us).png

SOA Suite

http://onlineappsdba.com/index.php/2007/07/24/oracle-bpel-process-manager-overview/

Oracle SOA Suite is unique in that it provides the following set of integrated capabilities:

• Messaging
• Service discovery
• Orchestration
• Web services management and security
• Business rules
• Events framework
• Business activity monitoring
  
  
  

  Standards Used by Oracle SOA Suite to Enable SOA

  Service Component Architecture (SCA) assembly model
  
  Service Data Objects (SDO)
  Business Process Execution Language (BPEL): BPEL versions 1.1 and 2.0 are supported
  XSL Transformations (XSLT)
  Java Connector Architecture (JCA)
  Java Messaging Service (JMS)
  Web Services Description Language (WSDL) file
  Simple Object Access Protocol (SOAP)

  
  

  Approaches for Designing SOA Composite Applications

  When creating a SOA composite application, you have a choice of approaches for building it:
  

  • Top-Down: You analyze your business processes and identify activities in support of your process. When creating a composite, you define all the SOA components through the SOA Composite Editor. You create all the services first, and then build the BPEL process, referencing the created services.
  • Bottom-Up: You analyze existing applications and assets to identify those that can be used as services. As you create a BPEL process, you build the services on an as-needed basis. This approach works well when IT must react to a change.

  
  

  
  On a UNIX operating system, it is highly recommended to enable Unicode support by setting the LANG and LC_Allenvironment variables to a locale with the UTF-8 character set. This action enables the operating system to process any character in Unicode. SOA technologies are based on Unicode. If the operating system is configured to use non-UTF-8 encoding, SOA components may function in an unexpected way. For example, a non-ASCII file name can make the file inaccessible and cause an error. Oracle does not support problems caused by operating system constraints.
  In a design-time environment, if you are using Oracle JDeveloper, select Tools > Preferences > Environment >Encoding > UTF-8 to enable Unicode support. This setting is also applicable for runtime environments.
  
  
  

  What Happens When You Create a SOA Application and Project

  Oracle JDeveloper automatically adds the following libraries needed for your SOA project:

  • SOA Design time
  • SOA Runtime
  • BPEL Runtime
  • Oracle Mediator Runtime
  • MDS Runtime

  
  
  http://docs.oracle.com/cd/E28271_01/dev.1111/e10224/fod_intro1.htm
  
  

SCA

For me Enterprise integration domain has been full of intresting thing, this time it is Service Component Architecture(SCA):

There are few hand-on SCA for Java:

Apache Tuscany beta version 2.0 had some issues so I tried 1.6

http://tuscany.apache.org/java-sca-documentation-menu.html
http://tuscany.apache.org/build-your-first-web-services-with-tuscany.html
http://tuscany.apache.org/getting-started-with-tuscany.html
http://biemond.blogspot.in/2009/11/working-with-apache-tuscany-java-sca.html

Oracle SOA uses SCA assembly model:

http://tuscany.apache.org/sca-java-architecture-guide.html

SCA provides specifications of:

Assembly model specification
Component implementation specifications
Binding specifications
Policy framework specification

Oracle SOA 11g

I must say cloud computing gone miles to make people lazy, importantly you can do what you want to do.

I have thought of doing some POC long back, tried a few times however was too difficult to have it on local machine: Oracle Virtulization has done it.

What do you need to try POC or start for Oracle SOA 11 g
1. Oracle Virtual Box(download VirtualBox-4.1.18-78361-Win.exe)
2. Oracle Ready to use OS(Linux)+ Oracle SOA 11 G platform. All parts of oel5u5-64bit-soabpm-11gr1-ps5-2-0-M.7z.001 to oel5u5-64bit-soabpm-11gr1-ps5-2-0-M.7z.007
3. Guide to install VBox and Linux+Oracle SOA(soabpmvirtualboxreadme-1612068.pdf)

My installation is ready with :

Oracle Enterprise Linux (64-bit)
Oracle XE Database
Oracle SOA Suite 11g
Oracle BPM Suite 11g
Oracle Service Bus 11g
Oracle Webcenter Content (Enterprise Content Management)
Oracle Webcenter Suite 11g
Oracle JDeveloper
JRockit
Sun Java SDK

Few hicups:
1. Virtual technology was not enabled in host machine, your virtual appliance will not run. Change you BIOS setting to enable Virtual technology.
2. Lot of things copied locally however need to be moved to virtual machine.You will have to add folder and finally you should be able to see hosted folders: in /media/ folder.

After few months on above setup I preferred and trust me it is worth(and fun) installing VBox, install linux 64 bit(download from eDelivery site), Oracle DB and SOA 11g on your own. I was lucky to get help from my colleagues working in Linux(do not try unless you are not good in Linux or you are lucky to get Linux help).