ANNOUNCING Application Development Platform 16.4.5 with useful new updates, enhancements, and relevant announcements to a vast range of services in the Application Development portfolio, including Java Cloud, Application Container Cloud, Developer Cloud, Application Builder Cloud, Database Cloud, Exadata Express Cloud, and more.

Java Cloud Service

• A streamlined Creation Wizard has 3 pages instead of 5.
• The Topology page was removed. To scale an instance or to add a load balancer, use the Instance Overview page or the instance menu.
• Use the new Cloud Stack Manager console and template to create both DBCS and JCS in a single operation. See this tutorial. This is an alternative to using the JCS creation wizard.
• A new security chapter was added to the documentation.
• Two new compute shapes are available.

Application Container Cloud Service

You can now use the new internal networking support to deploy clustered applications to Application Container Cloud. With this support you can, for example, deploy clustered Tomcat applications with replicated session state, so you can scale in without losing the user session. See Preparing a Clustered Application for Deployment in Developing for Oracle Application Container Cloud Service.

• In Getting Started with Chatbots, Tamer Qumhieh provides a step-by-step guide on how to get started with chatbots by building a Facebook chatbot that is implemented using Node.js running on Oracle Application Cloud Service.

Developer Cloud Service

• New Entitlements: 
  Developer Cloud Service is now provisioned with the following PaaS and IaaS services:
• Application Builder Cloud Service
• Exadata Express Cloud Service
• Database as a Service
• Any metered IaaS, including metered Compute, Oracle Container Cloud Service, etc.
• New blog posts: 
• Enabling Continuous Delivery with Developer and SOA Cloud Service
• Microservice Approach - Using Oracle Developer Cloud to Build and Deploy Node.js and DBCS REST Service Projects
• Developing Dropwizard Applications for Application Container Cloud Service with Developer Cloud
• New Training: 
• Developer Cloud Service Product Update for NAS, LAD, & EMEA

Partner Resources (community membership required)

• Sales Kits: DevOps: Agility for Dev / Test / Deploy & App Development and Deployment in the Cloud: Java EE Development & Testing & App Development and Deployment in the Cloud: Lightweight Web Applications & Reduce TCO through Consolidation&
• Trial Services for Partners
• Training material ACC JCS WLS 12c Bootcamp Summer Camps 09.2016 & training calendar
  

January 26th 2017: Oracle Management Cloud event at AMIS. Register here.

A few days back, we at AMIS got our cloud trial for Oracle Management Cloud. I can now report from my first steps with Application Performance Monitoring, one of the key components of OMC. Application Performance Monitoring (APM) is clearly indispensable to any organization adopting a DevOps approach – and frankly required for any organization in general running applications to support business objectives. APM provides insight in the non-functional behavior of applications – or better yet: of the business functions provided by these applications. It alerts administrators to functions that have unacceptable response times or are at risk to display poor performance and it allows us to analyze these situations to figure out where in the application stack – front end, services, integration flows, database, etc. – and in which specific component the problems have arisen.

After performing this type of root cause analysis, resolving the problem still needs to be done, but is kick started as early as possible and with as much analysis details as possible.

Watch Thomas Kurian, President of Product Development at Oracle and Mike Lehmann, Vice President of Product Management, demonstrate how to build, deploy and manage applications using an agile DevOps strategy and Oracle Management Cloud.

In this article I will apply the APM Java Agent to an existing Oracle WebLogic plus SOA Suite environment. After installing and configuring the agent, I have to make one small change to the WebLogic startup script, (re)start the server and subsequently and activity on that server is reported to OMC and exposed in the APM Dashboard and analysis screens. Subsequently my colleague executed the same steps on his personal laptop, using an agent with the same registration key and applying this agent to a WebLogic Server running an ADF application against a local database. Within minutes, the metrics from his machine and his ADF application appeared in the APM section of OMC, ready to be analyzed.

This particular ADF application is intentionally equipped with a number of performance black holes, for training and demonstration purposes; OMC APM was capable of identifying most of them.

Introduction

This post describes the installation of the WebLogic Server Version 12.2.1.2.0
The following tasks are performed and described:

• Preparing the Operating System for the installation of the WebLogic Server 12.2.1.2
• Installation JDK 1.8 and the WebLogic Server 12.2.1.2

The installation will be proceeding on the Oracle Enterprise Linux 7.2: host03.example.com.

Pre-installation Tasks

This chapter describes some tasks of preparation for the Operating System and the Database.

The RESTFul Management Services within Oracle WebLogic 12c is one of the greatest features and my personal favorite.

You can achieve a lot of things with the RESTFul Management Services, like creating DataSources, perform deployments, startup and shutdown Managed Servers and so on.

But you also can access the different WebLogic Server Logfiles :-)

Oracle provides the Dynamic Monitoring Service (DMS) as part of WebLogic Server which is extremely useful if you want to obtain aggregated data of an environment in case of for example a performance test. The data which can be obtained from DMS is extensive. This varies from average duration of service calls to JVM garbage collects to datasource statistics.

DMS can be queried with WLST. See for example here. On example script based on this can be found here. You can also directly go to a web-interface such as: http://<host>:<port>/dms/Spy. The DMS Spy servlet is by default only enabled on development environments but can be deployed on production environments (see here).

In case you have multiple Oracle WebLogic Server Domains on one Server running, you might realise the following problem:

Opening 2 or more WebLogic Consoles in one Browser and switching the Browser tabs between the different WebLogic Consoles, you have to re-login all the times for your different WebLogic Consoles. This is really annoying ...

The problem behind is really simple, its the WebLogic Admin Console Cookie, as for all Oracle WebLogic Admin Consoles the default Cookie Name is identical, its named "ADMINCONSOLESESSION".

When you need to extend your SaaS application you may use PaaS solutions to do it!

In this blog post I will use Oracle Mobile Cloud Service (MCS) and Oracle Mobile Application Accelerator (MAX) to create a mobile application for my Oracle Sales Cloud.

Download the packages: paas4saas-with-mcs-and-max.zip.

First of all we need to create a new Mobile Backend.

Go to Menu > Applications > Mobile Backends.

Click “New Mobile Backend” button to create a new Mobile Backend and name it as SalesMB.

• Start Date : 13-JAN-2017 12:00:00 AM GMT
• End Date : 3-FEB-2017 12:00:00 AM GMT

Thanks to Oracle A-Team, I had a chance to work with Chatbots.

3 pure NodeJS applications, on couple of Oracle Cloud platforms and Facebook messenger, and my chatbot was running.

Let me explain, the architecture a bit. To start with, following is the simple representation of how it works.

Message Platform Server : Is a NodeJS application, deployed on Oracle Application Container cloud, acts as a channel between Facebook Messenger and the chatbot engine. It simply converts the incoming messages from Facebook and sends it to chatbot readable format. Also, when chatbot replies, it converts to Facebook readable formats and passes it to messenger.

When your Oracle Mobile Cloud Service APIs are being accessed by a remote server, it is important you manage cross-origin resource sharing (CORS) We ran into this issue when we were building the solution for the Oracle cloud day. The MCS APIs were accessed by a Web Application that was hosted on a different domain, not on our Oracle PaaS domain. When calling an API from the application, we received the error:

XMLHttpRequest cannot load: [request url]. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin [origin domain] is therefore not allowed access. The response had HTTP status 401.

You can either disallow CORS altogether, or whitelist specific sites.  This is done by setting a property in policies.properties: Security_AllowOrigin.

Oracle Mobile Cloud Service (MCS) provides the Sync Client SDK and its supporting Data Offline API for caching MCS custom and REST resources in an efficient, uniform and transparent way. The Sync Client SDK, along with the Storage SDK, also provides support for caching storage objects.

Description of the illustration data_offline_arch.png

As a mobile app developer, you can leverage the Sync Client SDK technologies to do the following:

• Enable the user to continue to use the mobile app to perform critical tasks even when offline.
• Minimize the unnecessary retrieval of static data when the device is online, thus increasing performance and customer satisfaction.

I should say I'm happy with how NetBeans Git client works. It offers good performance and resolves conflicts pretty well.

It shows a list of pending changes and also changes colour for changed file name.

Changes can be committed into local repository through informative wizard.

While developing a Oracle JET application against APIs on Oracle Service Bus interacting to JD Edwards and Oracle Transportation Management, we ran into a challenge. In the table (ojTable) that we had included in a page, we wanted to have column filters – fields in each column header where the user can enter a filter criteria for that column.

The ojTable component supports the headerTemplate property (next to a rowTemplate and a footerTemplate). A headerTemplate is defined separately from the ojTable and can contain various components as well as script.

Let's take a look today how to debug JET application (tested with JET 2.2.0) which is initially generated with Yeoman. We could debug in NetBeans, but by default application generated with Yeoman is not runnable in NetBeans, we need to add manually some config files - I will describe how.

Also note - JET application created with NetBeans can't be directly served with grunt from command line, it also would require manual changes in the config. It would be nice if Oracle would make JET applications generated with Yeoman automatically runnable in NetBeans and vice versa.

I learned a few interesting things from my colleague Sylvain Côme in London today. Sylvain is a very big enthusiast of Oracle JET and is introducing it in a variety of contexts. For wireframing, he uses Adobe XD. For the images in his wireframes, he has installed SVG Crowbar into his Chrome browser, which enables him to download SVG files of images in the Oracle JET Cookbook.

He then imports those SVG files into his wireframe in Adobe XD, where he can even edit them, resulting in a wireframe with awesome Oracle JET visualizations, which will, once the wireframe is accepted, look identical to the final app since the SVG files are created directly from the image of the related Oracle JET component in the Oracle JET Cookbook.

That's a lot of info to process all at once, so let's take it step by step.

Some of you who would try to implement custom method with ADF BC REST may face JDeveloper 12.2.1.2 wizard issue. JDeveloper 12.2.1.2 wizard is refusing to register ADF BC REST custom method, but it works perfectly on ADF runtime. Seems to be JDeveloper 12.2.1.1 - 12.2.1.2 bug.

There is a workaround to modify REST service configuration manually and include custom method binding.
Sample application (available on GitHub - jetcrud). This sample implements custom method in VO implementation class - testCall.

This post is about ADF BC LOV. I will describe how you could optimize bulk insert of new rows into VO, when some of the attributes are assigned with LOVs.

By default ADF would validate new row attribute value through LOV (LOV Validation and Programmatic Row Insert Performance) for each new row. This will lead to bad performance, especially if you insert a set of new rows programmatically - there will be multiple SQL queries executed to check if LOV attribute value exists.

My colleague found a way to bypass LOV validation when new rows are created programmatically by calling ADF BC API createAndInitRow instead of createRow.

This use case specifically useful for ADF UI value change listener. If there is business logic to be invoked when field value is changed, we can can call ADF BC custom method from assigned value change listener. However new value is not yet propagated down to ADF BC model - we would need to pass it as parameter to custom method. What if want to have new value to be available in ADF BC model without passing new value from value change listener as parameter? This is possible if we call processUpdates method in value change listener, before calling custom ADF BC method.

In my example - ADFProcessUpdatesApp.zip, I have created sample method testCall in VO Row implementation class. This method is accessing salary attribute value from current row. I'm going to call this method through bindings from value change listener and lets see what it will print out.

When I moved to Dell XPS 9550 laptop …YES! It’s absolutely better than Mac-Pro :)

I had a serious problem about JDeveloper user interface on Windows 10 which was a UI scale problem.

Problems:

• Oracle JDeveloper (jdev) buttons,icons,menu is too small
• Fonts are too small
• It’s impossible to develop even “Hello World” :)

Here is the solution for JDeveloper: (Works for every executable JAVA apps) (Netbeans, Eclipse, JDeveloper, SOAPUI).

This post focuses on the creation, configuration and tuning of an initial Forms & Reports 12.2.1.2.0 Domain on the OEL 7.2 Server.

The WebLogic Server is a necessary requirement, and must already be installed. For instruction how to install the WebLogic Server 12.2.1.2 please refer to my previous post: WebLogic Server 12.2.1.2.0: Installation on the Linux OEL 7: step by step instruction.

Our challenge: we are building the new ERP system – a pure HTML5 browser based application in Oracle ADF. This application replaces the current Oracle Forms based application. For more than a year and a half – the users will have a hybrid situation on their hands: some of their tasks are handled in the new application while others are still supported by the current application. It is clear that this dual application situation is not ideal.

To make life easier for the users we at least want to offer smart short cuts and intelligent deeplinks from the Forms application to the new ADF application: at a growing number of screens in the Forms applications links will appear that allow the user to navigate to specific deeplink destinations in the ADF application to complete a task, retrieve relevant data etc. This deeplink should carry context: the business object that the user is working with in the Forms application should be prepared in the ADF application to provide the same context at the other end of the deeplink.

January 2017 top tweets by WebLogicCommunity.

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