For incoming record I need to validate the value and based on result object I need to forward error to different topics and if successfully validated then forward the same using context.forward(). It can be done using DSL as provided in this link using kafka-streams to conditionally sort a json input stream I…
How to implement Decorator pattern in Spring Boot
I know how to implement and use a decorator pattern without Spring. Because in this pattern you yourself control the process of creating components and you can perform dynamic behavior adding. Below is an example of implementation without using Spring: I am interested in how to implement the same example but …
ZonedDateTime to Date before Java 8 in early Android
I am trying to replace the ZonedDateTime.toInstant method because it is only available since API 26 for Android. But my app is supposed to support API 19. I want to convert the ZonedDateTime to a Date so i can do something like this: What i want to achieve is the following: I want to calculate the difference …
CannotResolveClassException: com.blazemeter.jmeter.RandomCSVDataSetConfig
I am building a maven project to execute performance testing for multiple web services, and this is following to jmeter-maven-plugin. However I ran into an issue which is basically that maven can not find the RandomCSVDataSetConfig class. in which I included in my pom file. Please share you insight if you hav…
Custom test source set with Gradle Kotlin DSL and Intellij
My project is using Gradle with Kotlin DSL for building. I now want to add a custom sourceset used for testing. The relevant code looks as follows: By using that, I get another module in Intellij, which is treated as source module. I also tried the following to mark it as test module: However, if I then do a …
Accessing spring bean proxy reference itself
I have an issue with @Cacheable and @CacheEviction annotations. When I call these methods in the bean where they are declared, the aop part is not getting executed. The underlying reason for this is that the bean access to its own instance itself, instead of accessing the spring proxy. I have read this questi…
Converting string to Map in java 8
Can someone please guide me on how to achieve the below using Java 8. I don’t know how to get that counter as the key Answer You can use IntStream to get this thing done. Use the integer value as the key, and the relevant value in the string array at that index as the value of the map. Another
Mono.subscriberContext() returning old context
I have a class PublishContext with a method context() as follows : In above code, context object is Context0@744 and context1 is Context@747 which is understandable since context is immutable and always returns a new context. In my main class, I have the following code : Here, I am getting context as Context0…
JPA Bidirectional relationship throws java.lang.StackOverflowError: null
i’m trying to relate two entities with JPA, when i run the project don’t throws me errors but when i request the method that get me the Voters of a Comunity Leader i get the next Exception: I’ts like a loop, i don’t khow how to resolve this. Here are my classes: 1)Leader Entity : 2)Vot…
Docker and jre 11 in Debug mode
I was trying to get a remote debug session running on my docker container. Actually the debug session always gets blocked by an IOException.. Dockerfile Entrypoint: Any ideas, whats wrong with this? Answer since java 9 you have to specify your adapter, or simply use an escaper for the debug host as such: grea…