j-tim’s gists

j-tim / pom.xml

Created May 17, 2020 20:32

Spring Boot actuator Maven

	<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-actuator</artifactId>
	</dependency>

j-tim / pom.xml

Created May 17, 2020 20:28

Spring Boot 2.3 validation starter not a transitive dependency from web starters anymore

	<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-validation</artifactId>
	</dependency>

j-tim / Customer.java

Created May 17, 2020 20:27

Customer validation annotations

	package com.example.validation;

	import lombok.Data;

	import javax.validation.constraints.Email;
	import javax.validation.constraints.NotBlank;

	@Data
	public class Customer {

j-tim / CustomerController.java

Created May 17, 2020 20:26

Spring MVC Restcontroller - Validation

	package com.example.validation;

	import lombok.extern.slf4j.Slf4j;
	import org.springframework.web.bind.annotation.PostMapping;
	import org.springframework.web.bind.annotation.RequestBody;
	import org.springframework.web.bind.annotation.RestController;

	import javax.validation.Valid;

	@Slf4j

j-tim / CustomerRepositoryTest.java

Created May 16, 2020 09:24

Spring Boot 2.3 - Spring Data R2dbc - @DataR2dbcTest test slice

	package com.example.r2dbc;

	import io.r2dbc.spi.ConnectionFactory;
	import org.junit.jupiter.api.Test;
	import org.springframework.beans.factory.annotation.Autowired;
	import org.springframework.boot.test.autoconfigure.data.r2dbc.DataR2dbcTest;
	import org.springframework.core.io.DefaultResourceLoader;
	import org.springframework.core.io.Resource;
	import org.springframework.core.io.ResourceLoader;
	import org.springframework.data.r2dbc.connectionfactory.init.ResourceDatabasePopulator;

j-tim / pom.xml

Created May 15, 2020 09:50

Spring Boot 2.3 Maven project pom example

	<?xml version="1.0" encoding="UTF-8"?>
	<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>2.3.0.RELEASE</version>
	<relativePath/> <!-- lookup parent from repository -->
	</parent>

j-tim / SomeService.java

Created May 1, 2020 15:50

Spring Boot 2.3.0 @ConditionalOnWarDeployment example

	package nl.jtim.conditional.on.war.deployment;

	import lombok.extern.slf4j.Slf4j;
	import org.springframework.boot.autoconfigure.condition.ConditionalOnWarDeployment;
	import org.springframework.stereotype.Component;
	import org.springframework.stereotype.Service;
	import org.springframework.web.bind.annotation.GetMapping;
	import org.springframework.web.bind.annotation.RestController;

j-tim / KafkaTopicConfiguration.java

Created April 10, 2020 12:18

Spring Kafka configuration example to programmatically create a Kafka topic with 3 replicas

	package io.stockgeeks.kafka.config;

	import org.apache.kafka.clients.admin.NewTopic;
	import org.springframework.context.annotation.Bean;
	import org.springframework.context.annotation.Configuration;
	import org.springframework.kafka.config.TopicBuilder;

	@Configuration
	public class KafkaTopicConfiguration {

j-tim / KafkaTopicConfiguration.java

Created April 10, 2020 12:14

Spring Kafka topic configuration. Override partitions for existing topic

	package io.stockgeeks.kafka.config;

	import org.apache.kafka.clients.admin.NewTopic;
	import org.springframework.context.annotation.Bean;
	import org.springframework.context.annotation.Configuration;
	import org.springframework.kafka.config.TopicBuilder;

	@Configuration
	public class KafkaTopicConfiguration {

j-tim / KafkaTopicConfiguration.java

Created April 10, 2020 12:11

Non Spring Boot Kafka topic configuration.

	package io.stockgeeks.kafka.config;

	import org.apache.kafka.clients.admin.AdminClientConfig;
	import org.springframework.beans.factory.annotation.Value;
	import org.springframework.context.annotation.Bean;
	import org.springframework.context.annotation.Configuration;
	import org.springframework.kafka.core.KafkaAdmin;

	import java.util.HashMap;
	import java.util.Map;

Tim van Baarsen j-tim