Open Source on IBM i

BlueDroplet - Next Steps

For those of you who don't know yet: BlueDroplet is a native REST framework for all ILE languages on IBM i. BlueDroplet consists of multiple ILE modules which are bound to an ILE program. Here is an overview of the structure of such a program....

Linked List Release 1.4.0

The Linked List service program has been a very stable service program with a stable API. The only thing that was a little bit clumsy was the sort function. The API design of the function offered great flexibility. You could implement your own...

ILEDocs Database is growing again!

ILEDocs has some fresh additions, namely the API documentation of the projects JSON Utilities, Linked List and Linked Map. We have almost all of the projects on board which are currently on the old documentation site at Sourceforge.net. If you...

JDBCR4 and Batch Updates and Inserts

I had to work with a remote Oracle database lately and the choice was made to use Scott's wrapper around the Java JDBC API. The solution worked. Everything is fine. Is it? No it isn't. I had to insert some thousand records into the...

ILEDocs Database is growing!

Slowly but steadily the ILEDocs project is growing. Today with the new version of the MESSAGE service program the API documentation has been uploaded to the ILEDocs database, making the API publicly available without having to search through any...

Java Git Client on IBM i

For sure everybody heard about the Open Source PTFs with the git client and node package, etc. But if you just want to use git to pull some code from a repository you could have had that feature for years without installing any extra PTF. Eclipse...

libxlsxwriter : Creating spreadsheets natively

A short while ago I stumbled over the C library libxlsxwriter from John McNamara on github. It is a C library for creating XLSX documents. More specifically it creates files in the Open Document spreadsheet format. Which can be used by Microsoft...

RDi Hover Support

At the moment I have access to an RDi installation and use it on a daily basis (besides using MiWorkplace =) ). Some people have written about the new hover support for RDi which is quite nice (and MiWorkplace has also a nice hover support to some...

Measuring Time Spent

Sometimes you have a block of code and just want to know how long it took the machine to execute it. The Java developers have some really cool metric libraries like the Dropwizard subproject Metrics. But for the quick and dirty case there is...

Project CodeNotes

At the time I still developed the RPG Next Gen Editor I have received some requests regarding offline support. It was not as much about editing the code but more about being able to view the code (perhaps for some reviewing and later...

Modular Programming

Modular programming is a software design technique that emphasizes separating the functionality of a program into independent, interchangeable modules, such that each contains everything necessary to execute only one aspect of the desired...

Processing XML Data

For some time now I had the idea to port a REST service of mine from Java to RPG. Mostly just out of curiosity because the REST service was running well enough. The REST service was about serving the geo coordinates of the boundaries of...

Even more Integration Possibilities

IBM i stands for integration. But it is most of the time very troublesome to connect to and integrate anything outside the IBM family. In the open world (outside the IBM i box) there are numerous ways to integrate and communicate between systems and...

Hey Socket, take a break!

Ever wanted a normal (blocking) socket connection to listen for data but also wanted to check for a condition if it should stop listening? Problem is that the default BSD 4.3 version of the socket API (which is the default API to bind to) does not...

ILEDocs - Project Info

Hi, as you may have already read on the MiWorkplace release info I also have been busy working on ILEDocs. First: Some REST APIs have different paths now which renders it incompatible with the previous version. The good thing is that we now also...

Rant about XMLSERVICE

Hi, First of all I want to make it clear that I have nothing against XMLSERVICE. I think it is a nice tool though I never had to work with it due to my current job and thus have no real life experience with it. And this ranting is not really...

Arraylist @ Bitbucket

Hi, as some may have noticed I am moving some of my projects to the OSSILE project. One of those projects is Arraylist. As the OSSILE project now uses git submodules to manage sub projects I have moved the source of Arraylist to its own...

Continuous Integration on IBM i

Hi, continuous integration has been a topic on any other platform for some years now. But on IBM i I never heard that term in any discussion. There is a myriad of open source tooling support on any platform but not for IBM i ... or rather there...

Lists: Arraylist vs Linked List

Hi, I am just moving my service program Linked List to the OSSILE project and I am again wondering if people know why there are two list implementations and when to use which implemenation or when to use a list at all. I am doing most of my...

BlueDroplet at ILEDocs

As there is now a functioning ILEDocs site available at rpgnextgen.com I added some real content to it. The BlueDroplet project is now in an alpha stage and can already be used for some REST services. The ILEDocs documentation of the BlueDroplet...

BlueDroplet and the library list

BlueDroplet now supports changing the library list on startup. You can either add library list entries to the user portion of the library list or replace the whole user portion of the library list. Happy RESTing!...

ILEDocs Revival

Hi, creating documentation has always been a major PITA in software development. Tools try to ease the process of creating good documentation. There are different kind of documentations (mostly different by the scope and/or detail and/or...