Missing parameters in custom Task for Spring Cloud Data Flow - java

I'm developing a task to use Spring Cloud Data Flow, but I can't see the execution parameters of my task (which is a Spring Boot application) or how to execute the task.
I am importing my application as a base and as the project as a base: spring-cloud-starter-task-timestamp
This is my pom, I made this using Spring Initializr and then using the timestamp-task application for tweaking.
<groupId>teste</groupId>
<artifactId>scdf-neo4j-task</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>scdf-neo4j-task</name>
<description>scdf-neo4j-task</description>
<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-task-parent</artifactId>
<version>2.3.0-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<spring-cloud.version>Hoxton.SR5</spring-cloud.version>
<start-class>teste.scdf.Neo4jTaskApplication</start-class>
<skipInstall>true</skipInstall>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-task</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.neo4j.driver</groupId>
<artifactId>neo4j-java-driver</artifactId>
<version>4.0.1</version>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-task-dependencies</artifactId>
<version>2.3.0-SNAPSHOT</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/libs-snapshot-local</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/libs-milestone-local</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>spring-releases</id>
<name>Spring Releases</name>
<url>https://repo.spring.io/release</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>spring-libs-release</id>
<name>Spring Libs Release</name>
<url>https://repo.spring.io/libs-release</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<snapshots>
<enabled>false</enabled>
</snapshots>
<id>spring-milestone-release</id>
<name>Spring Milestone Release</name>
<url>https://repo.spring.io/libs-milestone</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-releases></id>
<name>Spring Releases</name>
<url>https://repo.spring.io/libs-release</url>
</pluginRepository>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/libs-snapshot-local</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/libs-milestone-local</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>
This is my main Spring Boot class that implements CommandLineRunner:
#Log
#EnableTask
#SpringBootApplication
#EnableConfigurationProperties({Neo4jTaskProperties.class})
public class Neo4jTaskApplication
{
#Autowired
public Neo4jTaskProperties neo4jTaskProperties;
public static void main(String[] args)
{
SpringApplication.run(Neo4jTaskApplication.class, args);
}
#Bean
public CommandLineRunner commandLineRunner()
{
return args ->
{
Driver driver = GraphDatabase.driver(
neo4jTaskProperties.getUri(),
AuthTokens.basic(
neo4jTaskProperties.getUsername(),
neo4jTaskProperties.getPassword()
)
);
try (Session session = driver.session())
{
session.writeTransaction(transactionWork ->
{
ResultSummary resultSummary = transactionWork.run(neo4jTaskProperties.getCommand()).consume();
return resultSummary;
});
}
};
}
}
And this is my properties class:
#Data
#ConfigurationProperties("neo4j")
public class Neo4jTaskProperties {
private String uri;
private String username;
private String password;
private String command;
}
How can I solve this problem?


You need to add your task application properties into an application metadata that Spring Cloud Data Flow knows how to extract and make them available.
You can refer this page that walks you through how to add metadata.
Also, you can check this sample configuration as a reference on how to add such metadata.

Related

Spring gateway server won't start - java.lang.NoClassDefFoundError: org/springframework/core/metrics/ApplicationStartup

I'm trying to learn about Spring Gateway (how it is put together, how it works).
I'm following this tutorial here, and I run into an issue as I try to run the server. I haven't even done anything specific yet, outside of what this tutorial shows.
There is no mention of that issue on it, and this didn't help my case.
I'm not sure what I'm missing as the issue I'm running into didn't seem to be common.
Any help would be appreciated.
Here is my pom.xml :
<?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>2.7.7</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.container</groupId>
<artifactId>gateway</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>gateway</name>
<description>Gateway</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-gateway</artifactId>
<version>2.0.0.RC2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
<finalName>gateway-app</finalName>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</pluginRepository>
</pluginRepositories>
</project>

Spring Security Dependency Not Found

I am trying to implement a login feature for my springboot project, but I never added the spring security dependency while setting up my initial project from Spring Initializer, so when I created a new project from Spring Initializer and added the Spring Security Dependency, there were all of a sudden errors any time a Spring annotation or Spring functionality was referenced. When I create a new project without adding the Spring Security Dependency, all of these errors go away.
Here is the pom.xml
<?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>3.0.0-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>bookProjectFinalV1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>bookProjectFinalV1</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>18</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity5</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</pluginRepository>
</pluginRepositories>
</project>

When i am trying to use #ResController in my maven project it showing error " RestController can not be resolved to a type".Help me to resolve this

pom.xml
4.0.0
org.springframework.boot
spring-boot-starter-parent
2.3.2.BUILD-SNAPSHOT
com.java
restful-web-service
0.0.1-SNAPSHOT
restful-web-service
Demo project for Spring Boot
<properties>
<java.version>14</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</pluginRepository>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
Here my simple code to create Rest api
package com.java.restfulwebservice;
#RestController
public class HelloworldController {
...
}

Please import the RestController like below :
import org.springframework.web.bind.annotation.RestController;

resilence4j+springboot2 circuit breaker is not opened

I am trying to use resilence4j in my current spring boot2 project.I have written the following implementation classes.Even though i hit 1000 times CB is not opened.Could anyone please help finding what i was doing wrong.
mainclass
#SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
Controller class
#RestController
public class DemoController
{
#Autowired
DemoService demoService;
#GetMapping("/search")
public String searchService()
{
return demoService.search();
}
}
Service class with circuit breaker:
#Component(value = "demoService")
public class DemoService
{
#CircuitBreaker(name = "demoService",fallbackMethod = "fallback")
public String search()
{
throw new HttpServerErrorException(HttpStatus.INTERNAL_SERVER_ERROR, "This is a remote exception");
}
public String fallback(Throwable throwable)
{
System.out.println("Entering fallback Method..........."+throwable.getMessage());
System.out.println("Circuit Breaker Opened");
return "Circuit Breaker Opened..";
}
}
application.yml
spring:
application.name: demo
jackson.serialization.indent_output: true
server:
port: 9080
management.endpoints.web.exposure.include: '*'
management.endpoint.health.show-details: always
management.health.diskspace.enabled: false
management.health.circuitbreakers.enabled: true
management.health.ratelimiters.enabled: false
info:
name: ${spring.application.name}
description: resilience4j demo
environment: ${spring.profiles.active}
version: 0.0.1
management.metrics.tags.application: ${spring.application.name}
management.metrics.distribution.percentiles-histogram.http.server.requests: true
management.metrics.distribution.percentiles-histogram.resilience4j.circuitbreaker.calls: true
#resilience4j.circuitbreaker.metrics.use_legacy_binder: true
resilience4j.circuitbreaker:
configs:
default:
registerHealthIndicator: true
slidingWindowSize: 10
minimumNumberOfCalls: 5
permittedNumberOfCallsInHalfOpenState: 3
automaticTransitionFromOpenToHalfOpenEnabled: true
waitDurationInOpenState: 5s
failureRateThreshold: 50
eventConsumerBufferSize: 10
instances:
demoService:
baseConfig: default
pom.xml
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-autoconfigure</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>io.github.resilience4j</groupId>
<artifactId>resilience4j-spring-boot2</artifactId>
<version>1.5.0</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
<version>2.3.0.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</pluginRepository>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
For testing i used postman with 1000 repeated requests.

How to add external EJB to an Arquillian JUnit project?

I have a Data project and an EJB project created. Now I have created another Arquillian project for testing the above two with it using JUnit. I have created pom.xml file
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.arquillian.unit.test</groupId>
<artifactId>arquillian-test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>arquillian-test</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.jboss.arquillian</groupId>
<artifactId>arquillian-bom</artifactId>
<version>1.1.1.Final</version>
<scope>import</scope>
<type>pom</type>
</dependency>
</dependencies>
</dependencyManagement>
<repositories>
<repository>
<id>jboss-public-repository-group</id>
<name>JBoss Public Repository Group</name>
<url>http://repository.jboss.org/nexus/content/groups/public/</url>
<layout>default</layout>
<releases>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
</releases>
<snapshots>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
</snapshots>
</repository>
<repository>
<id>jboss-deprecated</id>
<name>JBoss Deprecated</name>
<url>https://repository.jboss.org/nexus/content/repositories/deprecated/</url>
<layout>default</layout>
<releases>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>jboss-maven2-brew</id>
<name>JBoss Maven 2 Brew Repository</name>
<url>http://repository.jboss.org/maven2-brew/</url>
<layout>default</layout>
<releases>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>jboss-public-repository-group</id>
<name>JBoss Public Repository Group</name>
<url>http://repository.jboss.org/nexus/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
<testResources>
<testResource>
<directory>FocalColectEJB/com/focalinfo/service</directory>
</testResource>
</testResources>
</build>
<dependencies>
<dependency>
<groupId>org.jboss.spec</groupId>
<artifactId>jboss-javaee-6.0</artifactId>
<version>1.0.0.Final</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jboss.arquillian.junit</groupId>
<artifactId>arquillian-junit-container</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
</dependencies>
<profiles>
<profile>
<id>jbossas-managed-5.1</id>
<dependencies>
<dependency>
<groupId>org.jboss.arquillian.container</groupId>
<artifactId>arquillian-jbossas-managed-5.1</artifactId>
<version>1.0.0.CR3</version>
</dependency>
<dependency>
<groupId>org.jboss.jbossas</groupId>
<artifactId>jboss-server-manager</artifactId>
<version>1.0.3.GA</version>
</dependency>
<dependency>
<groupId>org.jboss.jbossas</groupId>
<artifactId>jboss-as-client</artifactId>
<version>5.1.0.GA</version>
<type>pom</type>
</dependency>
</dependencies>
</profile>
</profiles>
</project>
How to map my ejbs in order to be able to test them in my Arquillian project?

You have a couple of options.
If your EJB and other JAR are deployed separately to your app, you can use multiple deployments in your test case. Only one is "testable" but both can be deployed. You can simplify the reading of this external JAR file using ShrinkWrap's maven resolver.
If they are wrapped in to a WAR or EAR, just use that WAR or EAR as your deployment.

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