Challenge code - Leoni

pom.xml

@@ -25,13 +25,18 @@
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-data-jdbc</artifactId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-web</artifactId>
 		</dependency>
-
+		<dependency>
+		    <groupId>org.projectlombok</groupId>
+		    <artifactId>lombok</artifactId>
+		    <version>1.18.24</version>
+		    <scope>provided</scope>
+		</dependency>
 		<dependency>
 			<groupId>org.flywaydb</groupId>
 			<artifactId>flyway-core</artifactId>
@@ -49,6 +54,18 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+
+		<dependency>
+			<groupId>io.springfox</groupId>
+			<artifactId>springfox-swagger2</artifactId>
+			<version>2.9.2</version>
+		</dependency>
+		<dependency>
+			<groupId>io.springfox</groupId>
+			<artifactId>springfox-swagger-ui</artifactId>
+			<version>2.9.2</version>
+		</dependency>
+
 	</dependencies>
 
 	<build>

src/main/java/com/zoomcare/candidatechallenge/config/SwaggerConfig.java

@@ -0,0 +1,28 @@
+package com.zoomcare.candidatechallenge.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import springfox.documentation.builders.ApiInfoBuilder;
+import springfox.documentation.builders.RequestHandlerSelectors;
+import springfox.documentation.service.ApiInfo;
+import springfox.documentation.service.Contact;
+import springfox.documentation.spi.DocumentationType;
+import springfox.documentation.spring.web.plugins.Docket;
+import springfox.documentation.swagger2.annotations.EnableSwagger2;
+
+@Configuration
+@EnableSwagger2
+public class SwaggerConfig {
+	@Bean
+	public Docket challengeApi() {
+		return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).groupName("Candidate Challenge").select()
+				.apis(RequestHandlerSelectors.basePackage("com.zoomcare.candidatechallenge.controllers")).build();
+
+	}
+
+	private ApiInfo apiInfo() {
+		return new ApiInfoBuilder().title("Challenge Api").description("The resulting services should allow users to get a list of all top-level employees or to specify an employee by id to return just that employee.")
+				.contact(new Contact("Gabriel Leoni","","")).version("1.0").build();
+	}
+}

src/main/java/com/zoomcare/candidatechallenge/controllers/EmployeeController.java

@@ -0,0 +1,35 @@
+package com.zoomcare.candidatechallenge.controllers;
+
+import java.math.BigInteger;
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.zoomcare.candidatechallenge.map.EmployeeData;
+import com.zoomcare.candidatechallenge.service.EmployeeService;
+
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+@RestController
+@RequestMapping("/employee")
+public class EmployeeController {
+
+	@Autowired
+	private EmployeeService employeeService;
+
+	@GetMapping
+	public ResponseEntity<EmployeeData> getEmployee(BigInteger id) {
+		return employeeService.getEmployeeData(id);
+	}
+
+	@GetMapping("/topLevel")
+	public ResponseEntity<List<EmployeeData>> getTopLevelEmployee() {
+		return employeeService.getTopLevelEmployee();
+	}
+
+}

src/main/java/com/zoomcare/candidatechallenge/entities/Employee.java

@@ -0,0 +1,28 @@
+package com.zoomcare.candidatechallenge.entities;
+
+import java.math.BigInteger;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+
+import lombok.Data;
+
+@Entity
+@Data
+public class Employee {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	private BigInteger id;
+
+	@Column(name = "supervisor_id")
+	private BigInteger supervisorid;
+
+}

src/main/java/com/zoomcare/candidatechallenge/entities/Property.java

@@ -0,0 +1,32 @@
+package com.zoomcare.candidatechallenge.entities;
+
+import java.math.BigInteger;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.IdClass;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.zoomcare.candidatechallenge.repositories.CompositeKey;
+
+import lombok.Data;
+
+@Data
+@Entity
+@IdClass(CompositeKey.class)
+public class Property {
+
+	@Id
+	@JsonIgnore
+	@Column(name = "employee_id")
+	private BigInteger employeeId;
+
+	@Id
+	private String key;
+
+	@Id
+	private String value;
+
+
+}

src/main/java/com/zoomcare/candidatechallenge/map/EmployeeData.java

@@ -0,0 +1,19 @@
+package com.zoomcare.candidatechallenge.map;
+
+import java.util.List;
+
+import com.zoomcare.candidatechallenge.entities.Employee;
+import com.zoomcare.candidatechallenge.entities.Property;
+
+import lombok.Builder;
+import lombok.Data;
+
+@Data
+@Builder
+public class EmployeeData {
+
+	private Employee employee;
+
+	private List<Property> properties;
+
+}

src/main/java/com/zoomcare/candidatechallenge/repositories/CompositeKey.java

@@ -0,0 +1,14 @@
+package com.zoomcare.candidatechallenge.repositories;
+
+import java.io.Serializable;
+import java.math.BigInteger;
+
+public class CompositeKey implements Serializable {
+
+	private BigInteger employeeId;
+
+	private String key;
+
+	private String value;
+
+}

src/main/java/com/zoomcare/candidatechallenge/repositories/EmployeeRepository.java

@@ -0,0 +1,19 @@
+package com.zoomcare.candidatechallenge.repositories;
+
+import java.math.BigInteger;
+import java.util.List;
+import java.util.Optional;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.stereotype.Repository;
+
+import com.zoomcare.candidatechallenge.entities.Employee;
+
+@Repository
+public interface EmployeeRepository extends JpaRepository<Employee, BigInteger>{
+
+	Optional<Employee> findById(BigInteger id);
+
+	Optional<List<Employee>> findAllBySupervisoridIsNull();
+}

src/main/java/com/zoomcare/candidatechallenge/repositories/PropertyRepository.java

@@ -0,0 +1,19 @@
+package com.zoomcare.candidatechallenge.repositories;
+
+import java.math.BigInteger;
+import java.util.List;
+import java.util.Optional;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+import com.zoomcare.candidatechallenge.entities.Property;
+
+@Repository
+public interface PropertyRepository extends JpaRepository<Property, BigInteger>{
+
+	Optional<Property> findByEmployeeId(BigInteger employeeId);
+
+	Optional<List<Property>> findAllByEmployeeId(BigInteger employeeId);
+
+}

src/main/java/com/zoomcare/candidatechallenge/service/EmployeeService.java

@@ -0,0 +1,69 @@
+package com.zoomcare.candidatechallenge.service;
+
+import java.math.BigInteger;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.NoSuchElementException;
+import java.util.Optional;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+
+import com.zoomcare.candidatechallenge.entities.Employee;
+import com.zoomcare.candidatechallenge.entities.Property;
+import com.zoomcare.candidatechallenge.map.EmployeeData;
+import com.zoomcare.candidatechallenge.repositories.EmployeeRepository;
+import com.zoomcare.candidatechallenge.repositories.PropertyRepository;
+
+import lombok.extern.log4j.Log4j2;
+
+@Service
+@Log4j2
+public class EmployeeService {
+
+	@Autowired
+	private EmployeeRepository empRepo;
+
+	@Autowired
+	private PropertyRepository propRepo;
+
+	public ResponseEntity<EmployeeData> getEmployeeData(BigInteger id) {
+
+		Optional<Employee> emp = empRepo.findById(id);
+
+		if(emp.isPresent()) {
+			Optional<List<Property>> props = propRepo.findAllByEmployeeId(id);
+
+			return new ResponseEntity<EmployeeData>(EmployeeData.builder().employee(emp.get()).properties(props.get()).build(), HttpStatus.OK);
+		}else {
+			log.error("The emploee with id {} does not exist.", id);
+			return new ResponseEntity<EmployeeData>(HttpStatus.NOT_FOUND);
+		}
+
+	}
+
+	public ResponseEntity<List<EmployeeData>> getTopLevelEmployee() {
+
+		Optional<List<Employee>> topEmpList =  empRepo.findAllBySupervisoridIsNull();
+
+		if(topEmpList.isPresent()) {
+			List<EmployeeData> finalList = new ArrayList<>();
+
+			topEmpList.get().forEach(employee -> {
+				Optional<List<Property>> props = propRepo.findAllByEmployeeId(employee.getId());
+
+				finalList.add(EmployeeData.builder().employee(employee).properties(props.get()).build());
+			});
+
+			return new ResponseEntity<List<EmployeeData>>(finalList, HttpStatus.OK);
+		}else {
+
+			log.error("There are no top-level employees");
+			return new ResponseEntity<List<EmployeeData>>(HttpStatus.NOT_FOUND);
+		}
+
+	}
+
+}

src/main/resources/application.yml

@@ -2,6 +2,12 @@ spring:
   h2:
     console:
       enabled: true
+  datasource:
+    url: jdbc:h2:mem:testdb
+    username: sa
+    password: sa
+    driverClassName: org.h2.Driver
+
 management:
   endpoints:
     web: