Igor's Blog

22-Mar-2017
Using Jersey 2.x as a shared library on WebLogic 12.1.2
WebLogic 12.1.2 may not be listed on Oracle Technology Network Downloads page but it is still being used. When it comes to RESTful services on WebLogic, 12.1.2 supports Jersey 1.13 so if you're looking to make use of Jersey 2.x features, there's some extra work to be done. With 12.1.3 you can go straight for Jersey 2.x but that's outside the scope of this article.
21-Mar-2017
Google DFP with AdSense fallback is causing infinite scroll pages to go haywire
I've written an article last year about using Google DFP with AdSense on infinite scroll pages which worked very well and was the basis for a number of my own sites and projects. In the past week however I noticed that GPT, which is the JavaScript library used to create DFP ad slots, started behaving erratically.
20-Mar-2017
Workaround for Mobile Safari scrollTop() not updating during scroll
I've recently discovered that on Mobile Safari the $(window).scrollTop() would not update during the scroll event animation. It appeared to only update after the scroll (the elastic scroll) had finished its animation. This was a rather annoying 'feature' for me because I needed to update my UI during the animation, so I went looking for a workaround and here's what I've come up with.
15-Mar-2017
Unmarshalling an XML fragment representing a JAXB object without XmlRootElement
I've recently had a requirement to unmarshal an XML fragment that was passed into one of my services. This in itself is typically not and issue and I've written code that does that plenty a time, however in this case I was having to unmarshal a fragment for a complex type, not for an element. That's where it got a little bit more complicated.
14-Mar-2017
Injecting a ContainerRequestContext into a Jersey entity provider class
I was implementing a custom entity provider in a Jersey REST service when I came across an error during deployment: "java.lang.IllegalStateException: Not inside a request scope." That struck me as a little odd since I was trying to inject a ContainerRequestContext into a MessageBodyWriter, which should have been within request scope. After some research and this Jersey issue I found a solution.
13-Mar-2017
Obfuscating PHP source code with Maven and YAK Pro PO
I'm very close to being able to release a PHP project that I've been working on and started looking at code obfuscation to make it a little bit more difficult for anyone looking to take my code and run with it. I looked at YAK Pro PHP Obfuscator for this purpose and liked how easy it was to configure and use. However, I wanted it to work with Maven since I already use that to minify my JavaScript.
10-Mar-2017
Octotree breaks GitLab Issue Boards
Octotree is an awesome browser extension that makes looking through Git repositories a breeze. It adds a vertical side bar that provides a file system view of whatever Git project you happen to be looking at. It works both on GitHub and GitLab, or at least used to. Recently I found that some features in GitLab stopped working while Octotree is enabled. Namely the Issue Boards do not load as expected.
08-Mar-2017
Compiling the FHIR schema with XJC
I've written previously about fixing HL7 CDA schema compilation with XJC, now that I've been looking at FHIR it seems that there are name collisions in that schema too. The actual problem arises out of the W3C XHTML 1.0 Schema and not the FHIR schema per se.
03-Mar-2017
Generate JAXB jar from a Maven dependency that has multiple referenced schemas
I've been trying to get the maven-jaxb2-plugin to generate a JAXB jar out of XSDs that are stored inside a dependency that I have no control of. This was quite doable for a simple, single XSD Maven dependency that didn't import any other schemas, but when dealing with a more complex schema that did import multiple other XSDs from the same dependency jar, it didn't "just" work. After trying many approaches I found a solution however.
26-Feb-2017
Binding extra variables with PHP PDO returns no results
As I expand the data binding layer for my travelblog.ws project, I keep coming across different ways of breaking the PHP PDO statement class. The recent peculiarity that I've come across was to do with binding more variables than there were bind parameters in the SQL statement. In this situation, PDO will not return any data. In fact this is documented in the API...
21-Feb-2017
Older versions of JD-GUI crashing on macOS Sierra
I've noticed today that my version of JD-GUI started crashing whenever I tried to open a jar file to decompile. I was on macOS Sierra and had version 0.3.3 of JD-GUI installed. This was the kind of error and crash report I was getting...
18-Feb-2017
Detecting print requests to print contents of a DIV with JavaScript
Printing a page with JavaScript is easy but if you want to print the contents of a specific DIV, it gets a little trickier. If you want to do something more complex like intercept the page print request and then print only certain contents of that page there's even more work involved. This article will show you how I did just that over at travelblog.ws.
15-Feb-2017
Using Google DFP with AdSense on responsive pages
I've been using Google DFP instead of AdSense on a number of sites that I run because it relaxes some of the AdSense rules and more importantly gives you fuller control of your ad placement. For example you can easily place AdSense ads on infinite scroll pages using DFP, which can't be done with standard AdSense code. One place that DFP falls short however is the ability to use responsive ads. This example shows how with a bit of extra code it is possible to make DFP ads somewhat more responsive friendly.
13-Feb-2017
Force PHP GD library to load JPEG images that have invalid data
While updating code my my travelblog.ws project I came across an issue where I was not able to upload certain JPEG files to the blog and have them automatically scaled down for thumbnail generation. The files opened fine on my Mac but PHP would not load them.
03-Feb-2017
PHP PDO doesn't work binding multiple IN statement values
PHP's PDO is a great way to access databases and works as expected on the most part, that is until you come to the IN() operator. Some peculiarities begin to emerge there as I've discovered recently when updating code for my travelblog.ws project.
16-Jan-2017
Adding an email subscribe feature to your Blog with Blogtrottr
I've been thinking of adding an email subscribe feature to my Blog for a while now. Originally I thought that I'd build this functionality myself but after a lot of deliberation and research I decided that there really wasn't any need to reinvent the wheel and looked for an alternative. That's when I came across Blogtrottr.
02-Jan-2017
How to open apps from unidentified developers on macOS Sierra
In macOS Sierra, the security around apps from unidentified developers has really been tightened. In previous releases of the OS you were given an option to open the app if it came from an unidentified developer but it seems that Sierra just gives you the 'OK' option and will not launch the app. There is a way around it however so read on for how to do it.

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Using Jersey 2.x as a shared library on WebLogic 12.1.2

Google DFP with AdSense fallback is causing infinite scroll pages to go haywire

Workaround for Mobile Safari scrollTop() not updating during scroll

Skipping execution of Maven plugins that do not have a native skip option

Unmarshalling an XML fragment representing a JAXB object without XmlRootElement

Injecting a ContainerRequestContext into a Jersey entity provider class

Obfuscating PHP source code with Maven and YAK Pro PO

Making use of corner shelves with easy to make slide out draws

Octotree breaks GitLab Issue Boards

Compiling the FHIR schema with XJC

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