RizzoDev

Background: If you are a Java developer who is comfortable using Eclipse (JEE Developer version) you may be asking yourself where to start with AngularJS. There is all kinds of documentation out there in regards to AngularJS and https://angularjs.org/ provides, to the point, tutorials on how to get started. You can certainly go that route and use node.js embedded server and possibly a Javascript focused IDE like WebStorm. However I wanted to try and stay in a comfort zone, my comfort zone, of Eclipse and be in a position to deploy an Angular application to a container like Tomcat. This blog entry will present the trail I took to try and accomplish it. Note: This is an adventure into Angular 1.x, not 2.x.  I would imagine this could all work with 2.x as well as it is focused on the dev environment setup. Start: Well the one consistent thing you will find to get started is to install the AngularJS Plugin, provided by Angelo ZERR.  You can use the Eclipse 4.5 (Mar...

Atlasssian provides a wonderful tutorial on how to use their migration scripts to move your subversion code repos to their BitBucket Git Repository  https://www.atlassian.com/git/tutorials/migrating-overview  . However their are a few things that all developers inevitable run into that are not explicitly documented.  I figured I would document the few things I ran into during my migration process and maybe save a few other developers a few moments. Tip 1: Re-mounting sparseimage I was undertaking my migration from MAC OS X (Yosemite).  Since the MAC OS is a case insensitive OS, I had to follow the instructions provided in the Atlasssian Migration guide to "Mount a case-sensitive disk image".  It worked great except of course I had to abandon my efforts and come back the next day.  Well the mount point was gone after I exited my terminal session.  The sparse image still existed. In order to remount the sparseimage I had to use the hdiutil. cd ~...

I recently encountered an issue where one of my teammates was experiencing an issue where an application datasource would periodically become exhausted.  After discussing it a few times, we hypothesized that it was a situation where there was a database connection leak.  It was suspected the leak was within boundaries of some application code with a low call rate.  This would line up with, why the application would run for an extended period and then all of a sudden max out its database connections. By inspecting the logs around the times of the database connection pool becoming exhausted it became pretty clear the potential location of the problematic code. The cause of the issue was not a result of necessarily bad code writing, but more of a case of not knowing how legacy semantics would work within the context of a spring transactional boundary. The semantics of how a call to DataSource.getConnection() behaves within the Spring transaction boundary is probably not ...

Dripping Faucets and Memory Leaks All Java developers will need to deal with memory leaks at some point in their careers.  There are already numerous blog posts on the internet about developers' experiences.  I figured I wold just add another, which discusses the trial and tribulations of my latest ordeal with a leaky faucet. We encountered a situation where a long running application server infrastructure all of sudden started to experience sever unreliability issues.  The application servers were starting to crash numerous times a day.  The application server was Oracle's old OC4J J2EE container, however that is really irrelevant in this case.  The application change would have caused issues on any application server platforms. Initial Pipe Tightening This particular matter was made a little more convoluted by the fact that there are actually multiple applications running in the same container.  One of the applications was a historical memory hung...

After you upgrade to xCode 6.4 you will notice that the SDK for iOS 7.1 is no longer available. If you still want to be able to build for iOS7 and run a simulator for iOS7 then you will need to do a little bit of manual work. First if you go to Preferences --> Downloads within xCode you should see a component listed for the iOS 7.1 simulator.  Click on the download arrow in order for it to be downloaded and installed. However you will notice that there is no download for the base SDK for 7.1.  You will need to manually install it in order for it to be available to xCode 6.4. You will want to check and confirm what SDKs are actually installed.  You can check by opening a terminal on your MAC and then proceeding to the directory /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs . If you do not see a folder for iPhoneOS7.1.sdk you will want to extract a copy of the SDK into your Xcode SDK directory structure.  You could ei...

The last couple of days have been one of those 'why is this so difficult' moments. I essentially lost more than a day trying to figure out how to get HTML5 canvases to show up in one of our JSF applications. Here is the background on the stack: JBoss AS 7.2.0 JDK 1.7.x Seam (JSF Framework) v2.2.0 Richfaces v3.3.3 Essentially we wanted to introduce a canvas to our page in order to graphical represent a numeric value and where it falls upon its normal range and possible range of values.   The page was leveraging a <ui:include> in order to display the results section.  It was a common component used among multiple pages and therefore the reason being pulled in via an include.  A richfaces commandLink was being used to initiate an AJAX request that would pull back none, one or many results and re-render the display within a JSF panelGroup.   Canvas Background:  If you look at any of the examples of using HTML5 canvases, you generally will s...

I have been a user of TOAD for multiple years and in the past have used and tried have other database tools. Given the level of familiarity I have with TOAD, I always end up falling back to the use of the product.  Through my career, I have also found that it is the general consensus among developers who are developing for an Oracle backend. It wasn't until recently though that I discovered the TOAD plugin for Eclipse.  I was intrigued and decided to check it out.  One of the main reasons I decided to give it a whirl is, it's always tough to switch between multiple tools during head down development.  And since I have been managing development teams for multiple years, I have heard developer after developer make comments like 'it would be nice if that was built right into Eclipse' (or whatever the editor of choice). I was pretty impressed with how well the plugin worked and it really does have some slick features from a java developer perspective.  As indic...