Ignacio Arrascaeta Candidate Code Challenge

pom.xml

@@ -27,6 +27,10 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-data-jdbc</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-web</artifactId>
@@ -49,6 +53,11 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-devtools</artifactId>
+		</dependency>
 	</dependencies>
 
 	<build>

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

@@ -0,0 +1,32 @@
+package com.zoomcare.candidatechallenge.controller;
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.zoomcare.candidatechallenge.dto.EmployeeDTO;
+import com.zoomcare.candidatechallenge.service.EmployeeService;
+
+@RestController
+@RequestMapping(path = "/employees")
+public class EmployeeController {
+
+	@Autowired
+	EmployeeService employeeService;
+
+	@GetMapping("/toplevel")
+	public List<EmployeeDTO> getTopLevelEmployees(){
+		return employeeService.getTopLevelEmployees();
+	}
+
+	@GetMapping("/{id}")
+	public EmployeeDTO getById(@PathVariable("id") Long employeeId) {
+		return employeeService.getEmployeeByID(employeeId);
+	}
+
+
+
+}

src/main/java/com/zoomcare/candidatechallenge/dto/EmployeeDTO.java

@@ -0,0 +1,59 @@
+package com.zoomcare.candidatechallenge.dto;
+
+import java.util.List;
+import java.util.Map;
+
+public class EmployeeDTO {
+
+	private Long id;
+
+	private Long supervisorId;
+
+	private Map<String, String> properties;
+
+	private List<EmployeeDTO> employees;
+
+	public EmployeeDTO(Long id, Map<String, String> properties, List<EmployeeDTO> employees) {
+		this.id = id;
+		this.properties = properties;
+		this.employees = employees;
+	}
+
+	public EmployeeDTO() {
+
+	}
+
+	public Map<String, String> getProperties() {
+		return this.properties;
+	}
+
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public List<EmployeeDTO> getEmployees() {
+		return employees;
+	}
+
+	public void setEmployees(List<EmployeeDTO> employees) {
+		this.employees = employees;
+	}
+
+	public void setProperties(Map<String, String> properties) {
+		this.properties = properties;
+	}
+
+	public Long getSupervisorId() {
+		return supervisorId;
+	}
+
+	public void setSupervisorId(Long supervisorId) {
+		this.supervisorId = supervisorId;
+	}
+
+}

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

@@ -0,0 +1,70 @@
+package com.zoomcare.candidatechallenge.entity;
+
+import java.util.List;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToMany;
+
+@Entity
+public class Employee {
+
+	@Id
+	@GeneratedValue
+	private Long id;
+
+	@Column(name = "supervisor_id")
+	private Long supervisorId;
+
+	@OneToMany
+	@JoinColumn(name = "employee_id")
+	private List<EmployeeProperty> properties;
+
+	@OneToMany
+	@JoinColumn(name = "supervisor_id")
+	private List<Employee> employees;
+
+	public Employee(Long id, Long supervisorId) {
+		this.id = id;
+		this.supervisorId = supervisorId;
+	}
+
+	public Employee() {
+	}
+
+	public Long getSupervisorId() {
+		return supervisorId;
+	}
+
+	public void setSupervisorId(Long supervisorId) {
+		this.supervisorId = supervisorId;
+	}
+
+	public Long getEmployee_id() {
+		return id;
+	}
+
+	public void setEmployee_id(Long employee_id) {
+		this.id = employee_id;
+	}
+
+	public List<EmployeeProperty> getProperties() {
+		return properties;
+	}
+
+	public void setProperties(List<EmployeeProperty> properties) {
+		this.properties = properties;
+	}
+
+	public List<Employee> getEmployees() {
+		return employees;
+	}
+
+	public void setEmployees(List<Employee> employees) {
+		this.employees = employees;
+	}
+
+}

src/main/java/com/zoomcare/candidatechallenge/entity/EmployeeProperty.java

@@ -0,0 +1,46 @@
+package com.zoomcare.candidatechallenge.entity;
+
+import java.io.Serializable;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "property")
+public class EmployeeProperty implements Serializable {
+
+	@Id
+	@GeneratedValue
+	private Long employee_id;
+
+	private String key;
+
+	private String value;
+
+	public Long getEmployeeId() {
+		return employee_id;
+	}
+
+	public void setEmployeeId(Long employeeId) {
+		this.employee_id = employeeId;
+	}
+
+	public String getKey() {
+		return key;
+	}
+
+	public void setKey(String key) {
+		this.key = key;
+	}
+
+	public String getValue() {
+		return value;
+	}
+
+	public void setValue(String value) {
+		this.value = value;
+	}
+
+}

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

@@ -0,0 +1,20 @@
+package com.zoomcare.candidatechallenge.repository;
+
+import java.util.List;
+import java.util.Optional;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+import com.zoomcare.candidatechallenge.entity.Employee;
+
+@Repository
+public interface EmployeeRepository extends JpaRepository<Employee, Long> {
+
+	List<Employee> findAll();
+
+	Optional<Employee> findById(Long id);
+
+	List<Employee> findAllBySupervisorIdIsNull();
+
+}

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

@@ -0,0 +1,48 @@
+package com.zoomcare.candidatechallenge.service;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Collectors;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.zoomcare.candidatechallenge.dto.EmployeeDTO;
+import com.zoomcare.candidatechallenge.entity.Employee;
+import com.zoomcare.candidatechallenge.entity.EmployeeProperty;
+import com.zoomcare.candidatechallenge.repository.EmployeeRepository;
+
+@Service
+public class EmployeeService {
+
+	@Autowired
+	EmployeeRepository employeeRepository;
+
+	public List<EmployeeDTO> getTopLevelEmployees() {
+		return employeeRepository.findAllBySupervisorIdIsNull().stream()
+				.map(this::toEmployeeDTO)
+				.collect(Collectors.toList());
+	}
+
+	public EmployeeDTO getEmployeeByID(Long employeeId) {
+		Optional<Employee> employee = employeeRepository.findById(employeeId);
+		if (employee.isPresent()) {
+			return toEmployeeDTO(employee.get());
+		} else {
+			return null;
+		}
+	}
+
+	private EmployeeDTO toEmployeeDTO(Employee employee) {
+		EmployeeDTO dto = new EmployeeDTO();
+		dto.setId(employee.getEmployee_id());
+		dto.setSupervisorId(employee.getSupervisorId() != null ? employee.getSupervisorId() : null );
+		dto.setProperties(employee.getProperties().stream().distinct()
+				.collect(Collectors
+				.toMap(EmployeeProperty::getKey, EmployeeProperty::getValue)));
+		dto.setEmployees(employee.getEmployees()
+				.stream()
+				.map(this::toEmployeeDTO).collect(Collectors.toList()));
+		return dto;		
+	}	
+}

src/main/resources/application.properties

@@ -0,0 +1 @@
+spring.main.allow-bean-definition-overriding=true