BAEL-4321 demo app for yaml to pojo
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Trixi Turny
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This is a demo application for using YAML configuration for defining values in a POJO class.
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The application has an endpoint to provide T-shirt size conversion for label and countrycode.
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If you run this service locally you can call this endpoint on:
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`localhost:8080/convertSize?label=M&countryCode=fr`
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It should return the size as int.
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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" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://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>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.3.2.RELEASE</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<groupId>yaml-to-pojo</groupId>
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<artifactId>demo</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<name>demo</name>
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<description>Demo project for YAML into POJO</description>
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<properties>
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<java.version>1.8</java.version>
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</properties>
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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-test</artifactId>
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<scope>test</scope>
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<exclusions>
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<exclusion>
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<groupId>org.junit.vintage</groupId>
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<artifactId>junit-vintage-engine</artifactId>
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</exclusion>
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</exclusions>
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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-web</artifactId>
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<version>RELEASE</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>
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package yamltopojo.demo;
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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.EnableConfigurationProperties;
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import yamltopojo.demo.config.TshirtSizeConfig;
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@SpringBootApplication
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@EnableConfigurationProperties(TshirtSizeConfig.class)
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public class DemoApplication {
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public static void main(String[] args) {
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SpringApplication.run(DemoApplication.class, args);
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}
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}
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package yamltopojo.demo.config;
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import org.springframework.boot.context.properties.ConfigurationProperties;
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import java.util.Map;
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@ConfigurationProperties(prefix = "t-shirt-size")
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public class TshirtSizeConfig {
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private final Map<String, Integer> simpleMapping;
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private final Map<String, Map<String, Integer>> complexMapping;
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public TshirtSizeConfig(Map<String, Integer> simpleMapping, Map<String, Map<String, Integer>> complexMapping) {
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this.simpleMapping = simpleMapping;
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this.complexMapping = complexMapping;
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}
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public Map<String, Integer> getSimpleMapping() {
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return simpleMapping;
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}
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public Map<String, Map<String, Integer>> getComplexMapping() {
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return complexMapping;
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}
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}
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package yamltopojo.demo.controller;
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import org.springframework.web.bind.annotation.*;
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import yamltopojo.demo.service.SizeConverterService;
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@RestController
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@RequestMapping(value = "/")
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public class TshirtSizeController {
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private SizeConverterService service;
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public TshirtSizeController(SizeConverterService service) {
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this.service = service;
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}
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@RequestMapping(value ="convertSize", method = RequestMethod.GET)
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public int convertSize(@RequestParam(value = "label") final String label,
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@RequestParam(value = "countryCode", required = false) final String countryCode) {
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return service.convertSize(label, countryCode);
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}
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}
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package yamltopojo.demo.service;
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import org.springframework.stereotype.Service;
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import yamltopojo.demo.config.TshirtSizeConfig;
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@Service
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public class SizeConverterImpl implements SizeConverterService {
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private TshirtSizeConfig tshirtSizeConfig;
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public SizeConverterImpl(TshirtSizeConfig tshirtSizeConfig) {
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this.tshirtSizeConfig = tshirtSizeConfig;
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}
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public int convertSize(String label, String countryCode) {
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if(countryCode == null) {
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return tshirtSizeConfig.getSimpleMapping().get(label);
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}
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return tshirtSizeConfig.getComplexMapping().get(label).get(countryCode);
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}
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}
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package yamltopojo.demo.service;
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public interface SizeConverterService {
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int convertSize(String label, String countryCode);
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}
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t-shirt-size:
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simple-mapping:
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XS: 6
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S: 8
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M: 10
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L: 12
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XL: 14
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complex-mapping:
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XS:
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uk: 6
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fr: 34
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us: 2
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S:
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uk: 8
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fr: 36
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us: 4
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M:
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uk: 10
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fr: 38
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us: 6
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L:
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uk: 12
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fr: 40
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us: 8
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XL:
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uk: 14
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fr: 42
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us: 10
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package yamltopojo.demo;
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import org.junit.jupiter.api.Test;
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import org.springframework.boot.test.context.SpringBootTest;
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@SpringBootTest
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class DemoApplicationTests {
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@Test
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void contextLoads() {
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}
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}
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package yamltopojo.demo.controller;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.ExtendWith;
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import org.mockito.InjectMocks;
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import org.mockito.Mock;
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import org.mockito.junit.jupiter.MockitoExtension;
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import yamltopojo.demo.service.SizeConverterService;
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import static org.junit.jupiter.api.Assertions.*;
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import static org.mockito.Mockito.when;
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@ExtendWith(MockitoExtension.class)
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class TshirtSizeControllerTest {
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@Mock
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private SizeConverterService service;
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@InjectMocks
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private TshirtSizeController tested;
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@Test
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void convertSize() {
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// Given
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String label = "S";
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String countryCode = "fr";
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int result = 36;
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//
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when(service.convertSize(label, countryCode)).thenReturn(result);
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int actual = tested.convertSize(label, countryCode);
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// Then
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assertEquals(actual, result);
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}
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}
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