Hi Developers! 
Let me share with you some exercises from a workshop about developing interoperability components in Java using PEX (Production EXtension).

You will find slides and step by step exercises about:

• Understanding simple PEX components coded in Java.
• Making some changes on them.

All built using containers, so you don't need to build a local Java environment.

In this article, I will show how you can easily containerize  .Net/Java Gateways.

For our example, we will develop an Integration with Apache Kafka.

And to interoperate with Java/.Net code we will use PEX .

Architecture

Our solution will run completely in docker and look like this:

Introduction

InterSystems IRIS 2020.1 includes PEX (Production EXtension Framework) to facilitate the development of IRIS Interoperability productions with components written in Java or .NET.

Thanks to PEX, an integration developer with knowledge of Java or .NET can benefit from the power, scalability, and robustness of the InterSystems IRIS Interoperability framework and be productive in no time.

According to IDC, more than 80% of information it is NoSQL, especially text into documents. When the digital services or applications not process all this information, the business lose. To face this challenge, it is possible use OCR technology. OCR uses machine learning and/or trained image patterns to transform image pixels into text. This is important, because many documents are scanned into images inside PDF, or many documents contains images with text inside. So OCR are an important step to get all possible data from a document.

Using the Java Gateway to speed development

InterSystems IRIS includes dynamic object gateways for Java, .NET, and (now) Python.  These gateways allow your IRIS application to use libraries in these languages, removing the need to create everything from scratch in ObjectScript.

Some InterSystems Java libraries are not available in public maven repositories, like intersystems-jdbc-3.1.0.jar. In this case, to configure your Java Maven dependency, copy the external file to your project (for a folder visible to the classpath, like resources) and use <systemPath>. Follow the sample:

Hello everyone! 

I have had problem with XML format in Cache Object Script, it was diffucult to parse XML format,

So i decided to convert XML to JSON and parse json easily

So for that i wrote code in java which convert xml to json and build package with maven

Anyone interested can download jar file and see the instructions at the link:

https://github.com/Sabit2092/xmlToJsonCache
 

Astronomers’ tools

5 years ago, on December 19, 2013, the ESA launched an orbital telescope called Gaia. Learn more about the Gaia mission on the official website of the European Space Agency or in the article by Vitaly Egorov (Billion pixels for a billion stars).

However, few people know what technology the agency chose for storing and processing the data collected by Gaia. Two years before the launch, in 2011, the developers were considering a number of candidates (see “Astrostatistics and Data Mining” by Luis Manuel Sarro, Laurent Eyer, William O’Mullane, Joris De Ridder, pp. 111-112):

• IBM DB2,
• PostgreSQL,
• Apache Hadoop,
• Apache Cassandra and
• InterSystems Caché (to be more precise, the Caché eXTreme Event Persistence technology).

Comparing the technologies side-by-side produced the following results (source):

The first four will probably sound familiar even to schoolchildren. But what is Caché XEP?

As we all know, Caché is a great database that accomplishes lots of tasks within itself. However, what do you do when you need to access an external database? One way is to use the Caché SQL Gateway via JDBC. In this article, my goal is to answer the following questions to help you familiarize yourself with the technology and debug some common problems.

With the release of InterSystems IRIS, we're also making available a nifty bit of software that allows you to get the best out of your InterSystems IRIS cluster when working with Apache Spark for data processing, machine learning and other data-heavy fun. Let's take a closer look at how we're making your life as a Data Scientist easier, as you're probably already facing tough big data challenges already, just from the influx of job offers in your inbox!

This is the first follow up after the post about headstarting SAPJCo3 with Ensemble and HealthShare ( https://community.intersystems.com/post/headstart-connect-sap-using-sapjco3-ensemble-and-healthshare).

Presenter: Gerd Nachtsheim
Task: Contribute to and influence open-source communities
Approach: Discuss how the joint efforts of people within and outside of InterSystems created our Hibernate driver and contributed to the Hibernate project
 

Description: The development of our latest Hibernate driver was a joint effort of multiple groups of people within and outside of InterSystems with different roles that was ultimately contributed to the Hibernate project. Come to this session to learn more about how open-source communities think and how you can leverage and contribute.

Problem: Everyone else appears to be doing open-source contributions, but it doesn’t fit into our company.

Solution: If you find an open source project that is interesting for you or your customers, contribute to that project and make it a better one that is also easier to use within your landscape.

Content related to this session, including slides, video and additional learning content can be found here.