Archive for the Category: Raspberry Pi

Raspberry Pi edition of IBM MQ Advanced for Developers

June 11, 2020 Roger Lacroix

IBM has just released Raspberry Pi edition of IBM MQ Advanced for Developers. I gotta figure out how to get some play time with this release of MQ. 🙂 Regards, Roger Lacroix Capitalware Inc.

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Simple Monitoring of the Current Queue Depth

June 4, 2020 Roger Lacroix

On StackOverflow, someone asked a question about determining when a queue’s current depth is the same as maximum depth. They were trying to do it from a script. While this is probably possible (I’m not a sed and/or awk guy), it seemed to me that they are trying to squeeze a fully blown up balloon […]

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IBM MQ, Java and MQ MI and/or MQ HA

April 8, 2020 Roger Lacroix

Sometimes you come across things that make you just scratch your head and say who the hell wrote this @#$% code. I’m not trying to say that I’m the world’s greatest programmer but some of the shit that the MQ/Java team writes just makes my head spin. They need to share what they’re smoking! IBM’s […]

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Java’s Missing Byte Array Class

February 19, 2020 Roger Lacroix

After 25 years, it is still surprising that Java doesn’t have a proper byte array class. There can be many reasons that the data a Java program needs to work with is in a byte array. It could be the contents of a file or MQTT message or IBM MQ message, etc. Since there is […]

Also posted in HPE NonStop, IBM i (OS/400), Java, JMS, Linux, macOS (Mac OS X), Open Source, Programming, Unix, Windows, z/OS 3 Comments

Inhibit/Allow the Get & Put Actions of a Queue

January 31, 2020 Roger Lacroix

On StackOverflow, someone asked a question about inhibiting get actions against a queue. Here is a simple Java/MQ program that will set inhibit or allow for the GET and PUT attributes of a queue. You can download the source code from here. Regards, Roger Lacroix Capitalware Inc.

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Request & Reply JMS/MQRFH2 Messaging Scenario

January 31, 2020 Roger Lacroix

Sometimes people over think a problem and write a complicated solution when really the solution is no different than any other Request/Reply scenario (use case). On StackOverflow, someone asked a question about sending a reply JMS/MQRFH2 message using the RFH2 header and folder values from the original request message. The code will copy the RFH2 […]

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New Raspberry Pi 4 Model B Released

June 25, 2019 Roger Lacroix

Raspberry Pi Foundation has just released a new Raspberry Pi 4 Model B. https://www.raspberrypi.org/blog/raspberry-pi-4-on-sale-now-from-35/ Everything is bigger, faster & better. Specifications: A 1.5GHz quad-core 64-bit ARM Cortex-A72 CPU (~3× performance) 1GB, 2GB, or 4GB of LPDDR4 SDRAM Full-throughput Gigabit Ethernet Dual-band 802.11ac wireless networking Bluetooth 5.0 Two USB 3.0 and two USB 2.0 ports Dual […]

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Java Code to Open a Web Page

November 7, 2018 Roger Lacroix

Some times the simplest things drive you nuts. 🙂 The Desktop class (java.awt.Desktop) was introduced in Java v1.6. There are occasions when you are running a Java application in JVM 1.6 or higher that the Desktop class is not available or fails to load. It is just weird and very frustrating. Its not just me. […]

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Language Wars – Maybe Enough Already

October 10, 2018 Roger Lacroix

Maybe I’m just old and grumpy, but I’m tired of surfing the internet and seeing language wars. I just saw this line “100% Java free!” the other day, listed as a product feature and it makes me shake my head. Of all the product features that would sell a product, you want to include that […]

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New Raspberry Pi 3 Model B+ Released

March 14, 2018 Roger Lacroix

Raspberry Pi Foundation has just released a new Raspberry Pi 3 Model B+. https://www.raspberrypi.org/blog/raspberry-pi-3-model-bplus-sale-now-35/ It has a faster CPU, upgraded networking and improved thermal management. Specifications: Broadcom BCM2837B0, Cortex-A53 (ARMv8) 64-bit SoC @ 1.4GHz 1GB LPDDR2 SDRAM 2.4GHz and 5GHz IEEE 802.11.b/g/n/ac wireless LAN, Bluetooth 4.2, BLE Gigabit Ethernet over USB 2.0 (maximum throughput 300 […]

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