I am working on an analytics project where we generate very complicated medical analysis and put it in a hierarchical data model. { “test” : { “test1” : “val1” } } Open the JSON in vim and use python -m json.tool :%!python -m json.tool Results { “test”: { “test1”: “val1” } } References https://coderwall.com/p/faceag/format-json-in-vim https://til.hashrocket.com/posts/ha0ci0pvkj-format-json-in-vim-with-jq […]
Category Archives: app dev
Urban Code Deploy: When a value doesn’t exist?
Urban Code Deploy: When a value doesn’t exist? Recently, I ran into an issue with a resource referece in an Urban Code Deploy (UCD) resource that did not yet exist. When the value, that doesn’t yet exist I found this a great tip (UCD Documentation). Change from ${p:resource/value-not-yet-populated} to ${p?:resource/value-not-yet-populated} UCD replaces the missing value […]
Generating Swagger as part of a Maven Build
Most of my projects use Maven to build and coordinate dependencies and run unit and build integration tests. I’ve found it a real pain that I could not generate my swagger docs as part of the build. I have found a really easy way. In Jenkins, I have a downstream job that runs specific maven […]
Locked out of Terminal Services
<bang-head/> I locked my team out of a terminal services session when I stopped the terminal server. I am on a Mac and could not restart the service using the MMC snap-in. I installed Samba4 – samba4-common and used the net rpc service start on TermService and bam… back in business. [root@hostname ~]# net rpc […]
JAX-RS Servlet properties
Recently, I have done a good amount of JAX-RS development, and I needed to kept hitting an issue with forms parameter validation errors on my query params. The errors kept driving me nuts, until I read the documentation and found – jersey.config.servlet.form.queryParams.disabled . I also learned the java property is available for those with code […]
Kafka 1.0.0 – Exactly Once Semantics
KIP-129: Streams Exactly-Once Semantics is an exciting advancement in kafka 1.0.0 and well described semantics and Kafka 1.0.0 [ Source Code ]
Git Lab Merge and Pull Request Templates – An Experiment
Git Lab Merge Request Templates are a fairly exciting way for me to help drive consistency in the projects I am participating in – internal, external and personal. I created a new folder in .gitlab/issue_templates/and added a file Merge_Request.md ( based on Pull Request). For GitHub (not GitLab) switch the folder to .github. When you […]
Handy Pattern for Custom Serialization with Jackson
@JsonSerialize(using = JsonDateSerializer.class) https://stackoverflow.com/a/40996756
Primer: Tips for using Random Test Files
On Mac and Linux, create a random file (https://stackoverflow.com/questions/257844/quickly-create-a-large-file-on-a-linux-system) dd if=/dev/urandom of=random-test-file-100m bs=1024k count=100 Example: $ dd if=/dev/urandom of=random-test-file-100m bs=1024k count=100 100+0 records in 100+0 records out 102400000 bytes transferred in 10.143507 secs (10095128 bytes/sec) This is a random file. You should also use shasum -A 256 and make sure the file you are using […]
Host Override using Curl
curl -H “Host: <hostname>” http://<ip>:9080/path-to-api The hostname should be the remote domain name and the IP should be the node specific IP. A good reference is https://drewish.com/2010/03/29/using-curl-and-the-host-header-to-bypass-a-load-balancer/