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Bael 9012 (#18247)
* Bael-9012, Integrating Pkl with Spring Boot * Bael-9012, Integrating Pkl with Spring Boot * Bael-9012, Integrating Pkl with Spring Boot * Bael-9012, Integrating Pkl with Spring Boot * Bael-9012, Integrating Pkl with Spring Boot * Bael-9012, Integrating Pkl with Spring Boot * Bael-9012, Integrating Pkl with Spring Boot * Bael-9012, Integrating Pkl with Spring Boot * Bael-9012, Integrating Pkl with Spring Boot * Bael-9012, Integrating Pkl with Spring Boot * Bael-9012, Integrating Pkl with Spring Boot
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‎spring-boot-modules/pom.xml

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<module>spring-boot-nashorn</module>
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<module>spring-boot-parent</module>
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<module>spring-boot-performance</module>
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<module>spring-boot-pkl</module>
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<module>spring-boot-property-exp</module>
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<module>spring-boot-request-params</module>
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<module>spring-boot-runtime</module>

‎spring-boot-modules/spring-boot-pkl/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.baeldung.spring-boot-modules</groupId>
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<artifactId>spring-boot-modules</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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</parent>
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<name>spring-boot-pkl</name>
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<description>Spring Boot Integration with pkl-lang</description>
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<artifactId>spring-boot-pkl</artifactId>
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<version>1.0-SNAPSHOT</version>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-actuator</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.pkl-lang</groupId>
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<artifactId>pkl-spring</artifactId>
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<version>${pickle-spring.version}</version>
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</dependency>
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</dependencies>
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<build>
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<pluginManagement>
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<plugins>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<version>${exec-maven-plugin.version}</version>
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<dependencies>
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<dependency>
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<groupId>org.pkl-lang</groupId>
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<artifactId>pkl-tools</artifactId>
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<version>${pkl-tools.version}</version>
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</dependency>
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</dependencies>
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</plugin>
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</plugins>
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</pluginManagement>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>${surefire.version}</version>
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<configuration>
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<environmentVariables>
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<GITHUB_PASSWORD>gitpassword</GITHUB_PASSWORD>
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<JIRA_PASSWORD>jirapassword</JIRA_PASSWORD>
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</environmentVariables>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<executions>
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<execution>
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<id>gen-pkl-java-bind</id>
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<phase>generate-sources</phase>
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<goals>
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<goal>java</goal>
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</goals>
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<configuration>
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<mainClass>org.pkl.codegen.java.Main</mainClass>
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<includeProjectDependencies>false</includeProjectDependencies>
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<additionalClasspathElements>
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<classpathElement>${pkl-tools-filepath}/pkl-tools-0.27.2.jar</classpathElement>
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</additionalClasspathElements>
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<arguments>
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<argument>${pkl-template-filepath}/ToolIntegrationTemplate.pkl</argument>
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<argument>-o</argument>
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<argument>${project.build.directory}/generated-sources</argument>
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<argument>--generate-spring-boot</argument>
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<argument>--generate-getters</argument>
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</arguments>
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</configuration>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>build-helper-maven-plugin</artifactId>
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<version>${build-helper-maven-plugin.version}</version>
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<executions>
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<execution>
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<id>add-source</id>
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<phase>generate-sources</phase>
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<goals>
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<goal>add-source</goal>
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</goals>
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<configuration>
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<sources>
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<source>target/generated-sources</source>
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</sources>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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<properties>
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<maven.compiler.source>21</maven.compiler.source>
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<maven.compiler.target>21</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<pickle-spring.version>0.16.0</pickle-spring.version>
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<exec-maven-plugin.version>3.3.0</exec-maven-plugin.version>
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<pkl-tools.version>0.27.2</pkl-tools.version>
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<surefire.version>3.5.0</surefire.version>
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<build-helper-maven-plugin.version>3.4.0</build-helper-maven-plugin.version>
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<pkl-tools-filepath>${settings.localRepository}/org/pkl-lang/pkl-tools/0.27.2</pkl-tools-filepath>
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<pkl-template-filepath>${project.basedir}/src/main/resources</pkl-template-filepath>
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</properties>
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</project>

‎spring-boot-modules/spring-boot-pkl/src/main/java/com/baeldung/spring/pkl/GitHubService.java

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package com.baeldung.spring.pkl;
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public class GitHubService {
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private final ToolIntegrationProperties.Connection gitConnection;
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public GitHubService(ToolIntegrationProperties.Connection connection) {
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this.gitConnection = connection;
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}
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public String readIssues() {
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return "Reading issues from GitHub URL " + gitConnection.getUrl();
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}
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public ToolIntegrationProperties.Connection getGitConnection() {
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return gitConnection;
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}
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}

‎spring-boot-modules/spring-boot-pkl/src/main/java/com/baeldung/spring/pkl/JiraService.java

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package com.baeldung.spring.pkl;
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public class JiraService {
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private final ToolIntegrationProperties.Connection jiraConnection;
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public JiraService(ToolIntegrationProperties.Connection connection) {
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this.jiraConnection = connection;
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}
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public String readIssues() {
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return "Reading issues from Jira URL " + jiraConnection.getUrl();
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}
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public ToolIntegrationProperties.Connection getJiraConnection() {
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return jiraConnection;
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}
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}

‎spring-boot-modules/spring-boot-pkl/src/main/java/com/baeldung/spring/pkl/SpringPklDemoApplication.java

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package com.baeldung.spring.pkl;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.boot.context.properties.ConfigurationPropertiesScan;
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@SpringBootApplication
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@ConfigurationPropertiesScan
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public class SpringPklDemoApplication {
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public static void main(String[] args) {
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SpringApplication.run(SpringPklDemoApplication.class, args);
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}
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}

‎spring-boot-modules/spring-boot-pkl/src/main/java/com/baeldung/spring/pkl/ToolConfiguration.java

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package com.baeldung.spring.pkl;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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@Configuration
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public class ToolConfiguration {
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@Bean
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public GitHubService getGitHubService(ToolIntegrationProperties toolIntegration) {
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return new GitHubService(toolIntegration.getGitConnection());
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}
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@Bean
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public JiraService getJiraService(ToolIntegrationProperties toolIntegration) {
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return new JiraService(toolIntegration.getJiraConnection());
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}
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}

‎spring-boot-modules/spring-boot-pkl/src/main/resources/ToolIntegrationTemplate.pkl

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module com.baeldung.spring.pkl.ToolIntegrationProperties
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class Connection {
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url:String
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name:String
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credential:Credential
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}
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class Credential {
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user:String
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password:String
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}
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gitConnection: Connection
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jiraConnection: Connection

‎spring-boot-modules/spring-boot-pkl/src/main/resources/application.pkl

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amends "ToolIntegrationTemplate.pkl"
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gitConnection {
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url = "https://api.github.com"
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name = "GitHub"
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credential {
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user = "gituser"
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password = read("env:GITHUB_PASSWORD")
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}
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}
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jiraConnection {
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url = "https://jira.atlassian.com"
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name = "Jira"
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credential {
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user = "jirauser"
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password = read("env:JIRA_PASSWORD")
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}
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}

‎spring-boot-modules/spring-boot-pkl/src/test/java/com/baeldung/spring/pkl/SpringPklUnitTest.java

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package com.baeldung.spring.pkl;
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import static org.junit.jupiter.api.Assertions.assertAll;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import org.junit.jupiter.api.Test;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.test.context.SpringBootTest;
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@SpringBootTest
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public class SpringPklUnitTest {
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Logger logger = LoggerFactory.getLogger(SpringPklUnitTest.class);
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@Autowired
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private GitHubService gitHubService;
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@Autowired
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private JiraService jiraService;
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@Test
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public void whenJiraConfigsDefined_thenLoadFromApplicationPklFile() {
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ToolIntegrationProperties.Connection jiraConnection = jiraService.getJiraConnection();
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ToolIntegrationProperties.Credential jiraCredential = jiraConnection.getCredential();
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assertAll(
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() -> assertEquals("Jira", jiraConnection.getName()),
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() -> assertEquals("https://jira.atlassian.com", jiraConnection.getUrl()),
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() -> assertEquals("jirauser", jiraCredential.getUser()),
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() -> assertEquals("jirapassword", jiraCredential.getPassword()),
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() -> assertEquals("Reading issues from Jira URL https://jira.atlassian.com",
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jiraService.readIssues())
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);
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}
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@Test
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public void whenGitHubConfigsDefined_thenLoadFromApplicationPklFile() {
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ToolIntegrationProperties.Connection gitHubConnection = gitHubService.getGitConnection();
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ToolIntegrationProperties.Credential gitHubCredential = gitHubConnection.getCredential();
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assertAll(
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() -> assertEquals("GitHub", gitHubConnection.getName()),
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() -> assertEquals("https://api.github.com", gitHubConnection.getUrl()),
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() -> assertEquals("gituser", gitHubCredential.getUser()),
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() -> assertEquals("gitpassword", gitHubCredential.getPassword()),
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() -> assertEquals("Reading issues from GitHub URL https://api.github.com", gitHubService.readIssues())
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);
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}
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}

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