Contentcuratie met expertlijsten

Contentcuratie met expertlijsten

expertlijst boekenMet ruim 9 miljoen producten in de winkel valt er natuurlijk van alles te ontdekken in een winkel als bol.com. Om je te inspireren en wegwijs te maken in dit enorme aantal, worden er steeds meer experts en productkenners uitgenodigd om expertlijsten te maken.

Naast productspecialisten in dienst van bol.com krijgen verkopers, leveranciers en affiliate partners de mogelijkheid om selecties te maken en zo bezoekers van bol.com te inspireren (more...)

enabling hardware acceleration for Android SDK emulator on Linux

When using the Android SDK for testing mobile applications (for instance, created with MAF, Mobile Application Framework), you can utilize the GPU for hardware acceleration on the Windows platform. This will greatly improve the performance of the emulator. To be able to use the acceleration, you’ll need to install a separate package called Intel x86 Emulator Accelerator (HAXM installer).

Android SDK Manager Android SDK Manager

If you’re on the Linux platform, you notice that the Status is  “Not (more...)

Oracle Java Download Add Ons, My non technical rant


Yesterday my UKOUG board college Bryan Foss shared this article with me about Oracle including  Ask Toolbar Add ons with Java downloads on Macs.

Ughhh!!

I am new to the MAC and one thing I really liked the idea of was no viruses. IDIOT, they may not be attacked as often as PCs but just this morning Facebook presented me with the MAC Defender download option for what I now know is (I was crafty, (more...)

Meetup maart – Docker en Elasticsearch

Meetup maart – Docker en Elasticsearch

Voor maart hebben we twee interessante bijeenkomsten gepland bij bol.com.

Docker Meetup – Deep dive into Docker storage drivers

docker_logoOp 5 maart hosten we voor de tweede keer een Docker Meetup in Utrecht. De presentaties worden verzorgd door:

  • Jérôme Petazzoni (Senior Engineer Docker)
  • Kay Davenport (Developer Evangelist ClusterHQ)

Inschrijven kan hier.

GOTO Night: Elasticsearch

elasticsearch_logoOp 25 maart hosten we voor een GOTO night over Elasticsearch. Sprekers zijn:

Changes in JDeveloper 12c BPM simulations

While creating a BPM project simulation in the JDeveloper 12c IDE, I noticed some differences in behavior as opposed to 11g. Although the functionality is mostly unchanged, the UI is different. Most of them are more intuitive, but you might want to check them out and save some time.

  1. Simulations are not always listed by default in the BPM project navigator. You can add them by right-clicking on the project, select New … | From (more...)

So you’ve dumped 150 GiB of JVM heap, now what?

150 GiB worth of JVM heap dump is laying on hard drive and I need analyze specific problem detected in that process.

This is a dump of proprietary hybrid of in-memory RDBMS and CEP system, I'm responsible for. All data are stored in Java heap, so heap size of some installation is huge (400 GiB heap is largest to the date).

Problem of analyzing huge heap dumps were on my radar for some time, so (more...)

Custom Password Policy Validation in OpenIDM

My customer needed to ensure that passwords contained at least one ‘special character’ when a new password was created in OpenIDM.

I borrowed heavily from the provided samples but had to figure out the correct regexp.

Here is the function that I used to implement this:

function atLeastXSpecialChars(fullObject, value, params, property) {

isRequired = _.find(this.failedPolicyRequirements, function (fpr) {
return fpr.policyRequirement === “REQUIRED”;
}),
isNonEmptyString = (typeof(value) === “string” && value.length),
valuePassesRegexp (more...)

Binary search – is it still most optimal?

If you have a sorted collection of elements, how would you find index of specific value?
"Binary search" is likely to be your answer.
Algorithms theory is teaching us what binary search is most optimal algorithm for this task with log(N) complexity.
Well, hash table can do better, if you need to find key by exact match. In many cases, though, you have reasons to have your collection sorted, not hashed.

On my job, I'm (more...)

Introduction to MongoDB Security

View it on my new blog Last week at the Paris MUG, I had a quick chat about security and MongoDB, and I have decided to create this post that explains how to configure out of the box security available in MongoDB. You can find all information about MongoDB Security in following documentation chapter: http://docs.mongodb.org/manual/security/ In this post, I won't go into the detail about

Moving My Beers From Couchbase to MongoDB

See it on my new blog : here Few days ago I have posted a joke on Twitter Moving my Java from Couchbase to MongoDB pic.twitter.com/Wnn3pXfMGi — Tugdual Grall (@tgrall) January 26, 2015 So I decided to move it from a simple picture to a real project. Let’s look at the two phases of this so called project: Moving the data from Couchbase to MongoDB Updating the application code to use

The Year 2014 in Review

Once each year completes I try to do a run down of which posts have garnered the most attention during the last 12 months, both on this blog and on the Fusion Weekly newsletter. Here are the most viewed stories from 2014.

Fusion Weekly Newsletter

Our Fusion newsletter is more than a year newer than our PeopleSoft one and consequently the subscriber base is a lot smaller. Despite this it still more than doubled in size during 2014.

(more...)

Presentaties februari 2015

Presentaties februari 2015

Voor februari 2015 staan er diverse presentaties op de planning met name op het gebied van architectuur en agile:

Kennissesies agile architectuur bij Ordina

Op 5 februari organiseert Ordina een kennissessie over agile architectuur in de praktijk. Net als op het LAC zal ik een presentatie houden over de waarde van architectuur en time-to-market. Waarin ik laat zien dat juist architectuur waarde en snelheid kan bieden bij de time-to-market. Dit aan de (more...)

Social Media Rant : Influence, Reach and Gamification




A few facts first:

This is a rant:

  • I love Social Media
  • I love getting a mention on social media
  • The rant is about the gamification of social media, and why the term 'Top Influencers' is wrong
Two points of my view (is that the correct plural of My POV?)
  1. Influence is difficult to measure, reach is not.
  2. Social Media is an incredibly important platform for people who influence, especially those non traditional influencers. (more...)

Making DevOps Business Driven – a service view

I've been doing a bit recently around DevOps and what I've been seeing is that companies that having been scaling DevOps tend to run into a problem: exactly what is a good boundary for a DevOps team? Now I've talked before about how Microservices are just SOA with a new logo, well there is an interesting piece about DevOps as well, its not actually a brand new thing.  Its an evolution and

Everybody Says “Hackathon”!

TLTR: MongoDB & Sage organized an internal Hackathon We use the new X3 Platform based on MongoDB, Node.js and HTML to add cool features to the ERP This shows that “any” enterprise can (should) do it to: look differently at software development build strong team spirit have fun! Introduction I have like many of you participated to multiple Hackathons where developers, designer and

Introducing OTBI-E

Today I was lucky enough to attend a pre-release workshop for OTBI-E (Oracle Transactional Business Intelligence for the Enterprise). The product is currently in controlled release but is going to be generally available very soon.

What is OTBI-E?

OTBI-E fills the gap between OTBI Standard (which is more operational in nature, reporting against the transactional database and for line managers to perform real-time BI) and the full OBIA (which is a fully-fledged data warehouse solution, delivered (more...)

Nantes MUG : Event #2

Last night the Nantes MUG (MongoDB Users Group) had its second event. More than 45 people signed up and joined us at the Epitech school (thanks for this!).  We were lucky to have 2 talks from local community members: How “MyScript Cloud” uses MongoDB by Mathieu Ruellan Aggregation Framework by Sebastien Prunier How “MyScript Cloud” uses MongoDB First of all, if you do not know MyScript I

Big Data and the importance of Meta-Data

Data isn't really respected in businesses, you can see that because unlike other corporate assets there is rarely a decent corporate catalog that shows what exists and who has it.  In the vast majority of companies there is more effort and automation put into tracking laptops than there is into cataloging and curating information. Historically we've sort of been able to get away with this

UKOUG 2014 – What I like least about the UKOUG


I said in the summary blog, the problem with being passionate is you get defensive when challenged, well here is another of my rants:

Venues - yes we simply don't have the ones we need in the UK. Every venue we select for our annual conference is a carefully walked tightrope of compromise and never, ever perfect.

This week we had the review of 2014 and looked at feedback. Please never stop giving feedback it (more...)

WIT – A Self Fulfilling Prophecy?


Wikapedia says A Self fulfilling prophecy is a prediction that directly or indirectly causes itself to become true, by the very terms of the prophecy itself, due to positive feedback between belief and behaviour.

First my own self fulfilling prophecy - this post will be controversial, but when I first started blogging that was the advice I got from my employer, if your blog is to make people think and you want people to keep (more...)