Angular configure user browser locale
Problem Using the angular date pipe etc. we often see that by default the format is en-US instead of the expected browser language of the user. Solution What we have to do is quite simple:
Author: Paul Sterl
Paul Sterl has written 35 articles
Quartz triggers, jobs, groups and more
If you are looking for a: Setup Quartz in JEE Setup Quartz in Spring Source Code to this page Trigger and Job names During the configuration we may select for each job and each trigger a name and a group. The last values gives us a way to cluster. The first one is in interesting.…
Quartz integration in Spring
Why Quartz? motivation Spring comes already with an own timer and this is fine if we have very simple requirements and we don’t really care about state or on which pod the timer is actually running. To be more precise the timer/ job is running in each of our spring containers independently. Lets be honest,…
Disable @Scheduled timers for test in Spring
Problem As soon we have timers in our project they may cause issues in our integration tests, as they start running in the most undesirable situation. E.g. during the trigger a specific function which would usually be triggered by the timer. Solution In the easiest scenario if it is a in memory Spring test we…
Aspects with Annotations
Problem Define a pointcut for annotated methods. The most example are based only on @within or @annotation which has the downside that the aspect is added to all methods and the check of the annotation is executed during runtime. Solution Git Repository https://github.com/sterlp/training/tree/master/aspect Links https://www.eclipse.org/aspectj/doc/released/progguide/semantics-pointcuts.html https://docs.spring.io/spring-framework/docs/5.3.x/reference/html/core.html#aop-pointcuts-designators
Spring Boot Redirect to SwaggerUI
Problem Some services don’t have an UI and the OpenAPI/ Swagger UI should be used as default UI of the service. As so the root should be redirected directly to the SwaggerUI. Solution Just add a WebMvc redirect. Swagger dependencies Ensure you check the current version: Links https://springdoc.org/
Java language extensions
Java 15 https://www.oracle.com/java/technologies/javase/15-relnote-issues.html Records Preview (JEP 384) Example on Github Text Blocks (JEP 378) Example on Github Pattern Matching Type Checks (JEP 375) Example on Github Other Java 15 language changes Nashorn JavaScript Engine removed Java 14 https://www.oracle.com/java/technologies/javase/14-relnote-issues.html Switch Expressions (JEP 361) Helpful NullPointerExceptions (JEP 358) example Java 13 https://www.oracle.com/java/technologies/javase/13-relnote-issues.html Java 12 https://www.oracle.com/java/technologies/javase/12-relnote-issues.html
Clean Code
Jede Funktion macht genau eine Sache Damit wird sichergestellt das dieser eine klare API und Funktion hat und der Nutzer einer Methode nicht überrascht wird, zB indem es zu einem unerwarteten Seiteneffekt führt. Beispiele: „readPersonById“ ändern zudem auch den Status in der DB, weil es den Zugriff protokolliert „formatDate“ vom DateFormatter führt zu einem Fehler,…
NPM and NodeJS Cheatsheet
Update NPM modules Update NPM
Install minishift
Install on Windows Startup Guide Note: Windows 10 Pro or higher is required for Hyper-V — the install was recommended to be on the C: drive. Auto Install Check that your CPU virtualization is enabled Download minishift and extract it into a folder Add your user to the Hyper-V Administrators Open Command-Line as Admin User…