Oracle PaaS for SaaS Integration

Platform-as-a-Service (PaaS) is buzz word now. Every day you are going to hear more and more PaaS has quickly evolved into a standard for building an agile business platform, and that’s cause for excitement. Platform as a service (PaaS) is exciting for customers—not just those who want to move to the cloud, but also those who see PaaS as a way to build applications faster and more efficiently. As Oracle releases more development tools in the cloud, I believe that PaaS will become the de facto way to extend software as a service (SaaS).

Benefits of PaaS –
With PaaS, no longer have to worry about the cost and time associated with maintaining hardware or a data center. By bypassing the setup required for a development environment, your organization will achieve faster time to value on projects. Most PaaS offerings are on a consumption model: Much like buying gas, you fill up only when you need to, and you pay for only what you use. Finally, the quick-start, user-friendly, cloud-based development tools enable and foster continuous innovation.

PaaS4SaaS – PaaS-SaaS Integration is important.If you are running an Oracle Software as a Service (SaaS) application, for example, Oracle Sales Cloud, you can write extensions to that service and deploy them on Oracle Java Cloud Service – SaaS Extension.

Recently a use case came across for using Oracle Sales Cloud data and build a custom application with Sales Cloud data.This application can be deployed on Java cloud service (JCS) and linked can be put in OSC by customizing Oracle Sales cloud’s composer.

Custom application UI can build on ADF or Javascript UI technologies with the database as cloud service (DBCS)and deploy in JCS.
Application displays reports on sales cloud opportunities and order for the previous duration and product manager can see a custom dashboard with documents in a custom application deployed on JCS. This can be a great use case for PaaS4SaaS . There can be many use cases for enterprise applications. So how we can fix that. How we can define a standard for PaaS4SaaS’s applications.

Oracle Java Cloud Service – SaaS Extension reduces the complexity associated with the deployment and maintenance of enterprise Java applications. It enables you to create Oracle Java Cloud Service – SaaS Extension instances quickly. You can deploy your applications to a service instance, then secure and manage them without worrying about the underlying infrastructure.

Oracle Java Cloud Service - SaaS Extension Architecture
Oracle Java Cloud Service – SaaS Extension Architecture

Source- Oracle Documentation.

provides a platform to develop and deploy business applications in the cloud. With Oracle Java Cloud Service – SaaS Extension, businesses can maximize productivity with instant access to a cloud environment powered by Oracle WebLogic Server, complete with integrated security and database access.

PaaS-SaaS Integration – If you using Oracle Software as a Service (SaaS) application, for example, Oracle Sales Cloud, you can write extensions to that service and deploy them on Oracle Java Cloud Service – SaaS Extension

Integrating services such as Oracle Sales Cloud and Oracle Java Cloud Service – SaaS Extension allows them to be associated so that single sign-on can be enabled, thus allowing one service to act as the identity provider for both.
Identity Propagation can be done using SAML and OAuth.

If you develop PaaS extensions on Java Cloud Service -SaaS Extension for your HCM, ERP or CX Cloud etc then you should following key points before you start.

1. RESTFUL API Catalog Key point of building PaaS extensions for Oracle SaaS Application is interact SaaS application (HCM, ERP).

Every Oracle SaaS applications have exposed set of web-services to communicate to external applications and we should be aware of these available web services, this is very important as any PaaS extension require a call to the SaaS application.Read this webservice in depth before starting development.

API catalog

2. Cloud Rapid Development Kit – The Oracle Applications Cloud User Experience Rapid Development Kit (RDK) is a set of free resources that will help you learn faster, design simpler and build quickly your PaaS extensions. RDK is one of the great resources to start developing your extension today with minimal learning curve. RDK provides great resources as summarized below:

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This will comes also with samples for PaaS4SaaS. Open Samples in Jdeveloper.Get all samples in GitHub

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You can navigate to DemoMaster->WebContent->Index.html and run it . You should able to see below screen

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3. Design Patterns/Template/wireframes – Rapid Development Kit provides wireframe template in ppt format, can be download from RDK wireframe templates. RDK also provides UX design patterns ebook. These two are exceptional resources to design PaaS Extension for Cloud Applications. You got all what you want to draw your layout/format and get your user feedback/comments before start developing.

– Design patterns eBook: Offers guidance on how to design your mobile cloud apps. These design patterns are referenced throughout this mobile wireframe template.

– Technical eBook: Offers guidance on how to use the Rapid Development Kit (RDK) to build and deploy applications that have the same look and feel as Oracle Mobile Applications. This eBook is packaged with the kit.

You can make your own template. Use, reuse, and resize these icons in your wireframes. Most of these icons are sized 44px to facilitate selection. You may need to reduce them from 44px x 44px to 16px x 16px.

4. Deploy Paas extension – .war and .ear file can be deployed on JCS using simple GUI. See example – Deploying an Application to Oracle Java Cloud Service – SaaS Extension.

5. Developer environment – Oracle Java Cloud Service – SX Software Development Kit (SDK) is a downloadable package that provides tools that facilitate the management of Oracle Java Cloud Service – SaaS Extension instances and the development of applications for the Oracle Java Cloud Service – SaaS Extension in Oracle Cloud. Apart from this you have a choice to use your favorite IDE (Integrated Development Environment). You can use:

• Oracle JDeveloper with Oracle Java Cloud Service – SaaS Extension
• NetBeans with Oracle Java Cloud Service – SaaS Extension
• Oracle Enterprise Pack for Eclipse with Oracle Java Cloud Service – SaaS Extension

Chose IDE which is best suited to you or you have already working experience, this choice will enable you to start developing quickly.

If you came across any more tips or knowledge , Please share in comments. Happy cloud development

Overview of Oracle Container Cloud Service

Oracle launch Oracle Container Cloud Service finally last year. Oracle Container Cloud Service – based on the technology and developed by the team that came from the StackEngine acquisition by Oracle – is a cloud-native and Docker compatible container as a service (CaaS) solution integrated into the Oracle Cloud. It is enterprise ready and with comprehensive tooling to compose, deploy, orchestrate, schedule, and operate Docker container-based applications on the Oracle Cloud. Designed for Dev, Dev/Test, DevOps, and Container Native use cases, OCCS enables self-healing scheduling, built-in service discovery, and CI/CD integrations via webhooks and REST API..It also comes in competition with the following competitor in world

– Docker for AWS or Azure
– Amazon Elastic Container Service
– Google Container Engine
– Azure Container Service
– DC/OS by Mesosphere
– OpenShift by Red Hat

Oracle Container Cloud Service offers Development and Operations teams the benefits of easy and secure Docker containerization when building and deploying applications.OCCS is the newest addition in the Oracle Cloud landscape. It’s a PaaS service that addresses those additional requirements for running Docker in production.

Manager and Worker Services
To get started with the Oracle Container Cloud Service you first define an OCCS service that represents a set of hosts used for OCCS. A service always consists of a manager node and one or more worker nodes.
The manager node orchestrates the deployment of containers to the worker nodes. The worker nodes host the containers or stacks of containers. The set of worker nodes for a service can later be further subdivided into pools that build a resource group.

Every configured OCCS service has its own admin user and password. To set up an OCCS service, you define its service name and either create a new SSH key or specify an existing one. Using this SSH key you can connect to the service from the command-line.

Oracle Container Cloud Service:

– provides an easy-to-use interface to manage the Docker environment

– provides out-of-the-box examples of containerized services and application stacks that can be deployed in one click

– enables developers to easily connect to their private Docker registries (so they can ‘bring their own containers’)

– enables developers to focus on building containerized application images and Continuous Integration/Continuous Delivery (CI/CD) pipelines, not on learning complex orchestration technologies

You can request trial account for 30 days for from Oracle.com. For learn how to use trail account please see below video.

Container cloud service uses docker.Let learn about Docker,
Docker
Docker has been a tremendous success over the last three years. From an almost unknown and rather technical open source technology in 2014, it has evolved into a standardized runtime environment now officially supported for many Oracle enterprise products.

Basics
The core concepts of Docker are images and containers. A Docker image contains everything that is needed to run your software: the code, a runtime (e.g. the JVM), drivers, tools, scripts, libraries, deployments, etc.

A Docker container is a running instance of a Docker image. However, unlike in traditional virtualization with a type 1 or type 2 hypervisor, a Docker container runs on the kernel of the host operating system. Within a Docker image there is no separate operating system,

dcker

Oracle Container Service is built upon Oracle’s StackEngine acquisition .You can run docker on container services.OCCS comes with several predefined OCCS container services. An OCCS container service defines a Docker service together with the necessary configuration settings for running a Docker image and its deployment directives.Oracle Container Cloud Service (OCCS) comes with some popular service examples like apache, nginx, jenkins, logstash, mariadb etc.

cccccon a host, plus default deployment directives. Service is neither container nor image running in containers. It is a high-level configuration objects that you can create, deploy, and manage using Oracle Container Cloud Service. Think of a service as a container ‘template’, or as a set of instructions to follow to deploy a running container.

Stack – Stack is all the necessary configuration for running a set of services as Docker containers in a coordinated way and managed as a single entity, plus default deployment directives. Think of it as multi-container application. Stacks themselves are neither containers nor images running in containers, but rather are high-level configuration objects that you can create, deploy, and manage using Oracle Container Cloud Service. For example, a stack might be one or more WildFly containers and a Couchbase container. Likewise, a cluster of database or application nodes can be built as a stack.

Deployment – A Deployment comprises a service or stack in which Docker containers are managed, deployed, and scaled according to a set of orchestration rules that you’ve defined. A single deployment can result in the creation of one or many Docker containers, across one or many hosts in a resource pool.

Resource Pool – Resource pools are a way to organize hosts and combine them into isolated groups of compute resources. Resource pools enable you to manage your Docker environment more effectively by deploying services and stacks efficiently across multiple hosts.Three resource pools are defined out of the box.
techARTIFACT

Stacks
OCCS does not only define and deploy single services. You can also link services together and start them as a stack. The OCCS console already comes with several predefined stack examples, such as WordPress with a database or a Redis cluster with master and slave.

Stacks are defined by a YAML file that lists the contained services. You can define environment variables for every service in a stack.

Please give a trying OCCS.Happy Oracle Cloud learning.

Performance tuning of Jdeveloper 12c

Very frequent we get issues of JDeveloper hangs.Then you need to close JDeveloper and restart. if you are developing and debugging, this problem occurs more frequently.This post tell how to make your jdeveloper with better performance.

Jdeveloper –

1) Go to MW_HOME \jdeveloper\ide\bin\ide.conf and increase the Max heap size (Xmx).

//Set this option depend on your system configuration.I have 16gb ram, I prefer to set this.
AddVMOption -Xms2048M
AddVMOption -Xmx4096M

2) Go to MW_HOME \jdeveloper\jdev\bin\jdev.conf and set the following parameters

// Increase your MaxPermSize
AddVMOption -XX:MaxPermSize=1024M

//Adds a memory monitor which helps in check current heap used by jdeveloper

AddVMOption -DMainWindow.MemoryMonitorOn=true

//ADD the following JVM options towards the end of file
AddVMOption -XX:+UseStringCache
AddVMOption -XX:+OptimizeStringConcat
AddVMOption -XX:+UseCompressedStrings
AddVMOption -XX:+UseCompressedOops
AddVMOption -XX:+AggressiveOpts
AddVMOption -XX:+UseConcMarkSweepGC
AddVMOption -DVFS_ENABLE=true
AddVMOption -Dsun.java2d.ddoffscreen=false
AddVMOption -XX:+UseParNewGC
AddVMOption -XX:+CMSIncrementalMode
AddVMOption -XX:+CMSIncrementalPacing
AddVMOption -XX:CMSIncrementalDutyCycleMin=0
AddVMOption -XX:CMSIncrementalDutyCycle=10

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3 ) Disable the SVN versioning system that is built into JDeveloper.Uncheck the checkbox for Subversion for example support for GIT

4) Reduce ON-Save and AFTER-Save Actions
Go To Tools >> Preferences >> Code Editor >> Save Actions
Remove “Build After Save”

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After that, Please restart jdeveloper.Your jdeveloper will give better performance