Initial version of demo code; Work In Progress.

demo/05-06/src/main/java/pl/edu/amu/demo/life/dto/PersonDTO.java

@@ -0,0 +1,36 @@
+package pl.edu.amu.demo.life.dto;
+
+import lombok.*;
+import lombok.experimental.FieldDefaults;
+import pl.edu.amu.demo.life.jpa.Person;
+
+@FieldDefaults(level = AccessLevel.PRIVATE)
+@AllArgsConstructor
+@NoArgsConstructor
+@Setter
+@Getter
+@EqualsAndHashCode
+@ToString
+public class PersonDTO {
+
+    Long id;
+    String displayName;
+    String firstName;
+    String lastName;
+    Long clientId;
+
+    public Person toPerson() {
+        return new Person(id, displayName, firstName, lastName, clientId);
+    }
+
+    public static PersonDTO fromPerson(Person person) {
+        return new PersonDTO(
+                person.getId(),
+                person.getDisplayName(),
+                person.getFirstName(),
+                person.getLastName(),
+                person.getClientId()
+        );
+    }
+
+}

demo/05-06/src/main/java/pl/edu/amu/demo/life/dto/PolicyDTO.java

@@ -0,0 +1,49 @@
+package pl.edu.amu.demo.life.dto;
+
+import lombok.*;
+import lombok.experimental.FieldDefaults;
+import pl.edu.amu.demo.life.jpa.Policy;
+import pl.edu.amu.demo.life.jpa.PolicyStatus;
+
+import java.math.BigDecimal;
+import java.time.LocalDate;
+
+@FieldDefaults(level = AccessLevel.PRIVATE)
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+@EqualsAndHashCode
+@ToString
+public class PolicyDTO {
+
+    Long id;
+    String number;
+    BigDecimal insuredSum;
+    LocalDate startDate;
+    LocalDate endDate;
+    PersonDTO insuredPerson;
+    String status;
+    LocalDate statusChangeDate;
+
+    public Policy toPolicy() {
+        var policyStatus = PolicyStatus.valueOf(status);
+        return new Policy(
+                id, number, insuredSum, startDate, endDate, insuredPerson.toPerson(), policyStatus, statusChangeDate
+        );
+    }
+
+    public static PolicyDTO fromPolicy(Policy policy) {
+        return new PolicyDTO(
+                policy.getId(),
+                policy.getNumber(),
+                policy.getInsuredSum(),
+                policy.getStartDate(),
+                policy.getEndDate(),
+                PersonDTO.fromPerson(policy.getInsuredPerson()),
+                policy.getStatus().name(),
+                policy.getStatusChangeDate()
+        );
+    }
+
+}

demo/05-06/src/main/java/pl/edu/amu/demo/life/jpa/Person.java

@@ -1,7 +1,6 @@
 package pl.edu.amu.demo.life.jpa;
 
-import lombok.Getter;
+import lombok.*;
-import lombok.Setter;
 
 import javax.persistence.Column;
 import javax.persistence.Entity;
@@ -12,6 +11,9 @@ import javax.persistence.Id;
 @Entity
 @Getter
 @Setter
+@NoArgsConstructor
+@AllArgsConstructor
+@ToString
 public class Person {
 
     @Id
@@ -28,4 +30,7 @@ public class Person {
     @Column(name = "person_last_name")
     private String lastName;
 
+    @Column(name = "person_client_id", unique = true, nullable = false)
+    private Long clientId;
+
 }

demo/05-06/src/main/java/pl/edu/amu/demo/life/jpa/Policy.java

@@ -0,0 +1,43 @@
+package pl.edu.amu.demo.life.jpa;
+
+import lombok.*;
+
+import javax.persistence.*;
+import java.math.BigDecimal;
+import java.time.LocalDate;
+
+@Entity
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+@ToString
+public class Policy {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @Column(name = "policy_id")
+    private Long id;
+
+    @Column(name = "policy_number", unique = true, nullable = false, updatable = false)
+    private String number;
+
+    @Column(name = "policy_insured_sum", nullable = false)
+    private BigDecimal insuredSum;
+
+    @Column(name = "policy_start_date", nullable = false)
+    private LocalDate startDate;
+
+    @Column(name = "policy_end_date", nullable = false)
+    private LocalDate endDate;
+
+    @ManyToOne(cascade = CascadeType.ALL, optional = false)
+    private Person insuredPerson;
+
+    @Column(name = "policy_status", nullable = false)
+    private PolicyStatus status;
+
+    @Column(name = "policy")
+    private LocalDate statusChangeDate;
+
+}

demo/05-06/src/main/java/pl/edu/amu/demo/life/repository/PolicyRepository.java

@@ -0,0 +1,9 @@
+package pl.edu.amu.demo.life.repository;
+
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+import pl.edu.amu.demo.life.jpa.Policy;
+
+@Repository
+public interface PolicyRepository extends CrudRepository<Policy, Long> {
+}

demo/05-06/src/main/java/pl/edu/amu/demo/life/service/PolicyService.java

@@ -0,0 +1,46 @@
+package pl.edu.amu.demo.life.service;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import pl.edu.amu.demo.life.dto.PolicyDTO;
+import pl.edu.amu.demo.life.repository.PolicyRepository;
+
+import java.util.List;
+import java.util.stream.StreamSupport;
+
+import static java.util.stream.Collectors.toList;
+
+@Service
+@Slf4j
+public class PolicyService {
+
+    private final PolicyRepository policyRepository;
+
+    @Autowired
+    public PolicyService(PolicyRepository policyRepository) {
+        this.policyRepository = policyRepository;
+    }
+
+    public long countPolicies() {
+        log.info("Repository class: {}", policyRepository.getClass().getCanonicalName());
+        var policies = policyRepository.findAll();
+        var policiesCount = StreamSupport.stream(policies.spliterator(), false).count();
+        log.info("{} policies found in the repository.", policiesCount);
+        return policiesCount;
+    }
+
+    // Don't do that!!!
+    // NEVER, EVER YOU SHOULD QUERY FOR ALL!!!1
+    // Just an example!
+    public List<PolicyDTO> getAllPolicies() {
+        return StreamSupport.stream(policyRepository.findAll().spliterator(), false)
+                .map(PolicyDTO::fromPolicy)
+                .collect(toList());
+    }
+
+    public void savePolicy(PolicyDTO policyDTO) {
+        policyRepository.save(policyDTO.toPolicy());
+    }
+
+}

demo/05-06/src/main/java/pl/edu/amu/demo/life/web/rest/PolicyController.java

@@ -0,0 +1,40 @@
+package pl.edu.amu.demo.life.web.rest;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import pl.edu.amu.demo.life.dto.PolicyDTO;
+import pl.edu.amu.demo.life.service.PolicyService;
+
+import java.util.List;
+
+@RestController
+public class PolicyController {
+
+    final PolicyService service;
+
+    @Autowired
+    public PolicyController(PolicyService service) {
+        this.service = service;
+    }
+
+    @GetMapping(path = "/policies/count")
+    public long getCount() {
+        return service.countPolicies();
+    }
+
+    @GetMapping(path = "policies/list")
+    public List<PolicyDTO> getAllPolicies() {
+        // AGAIN, DO NOT DO THAT IN REAL LIFE!!!
+        // YOU ALWAYS NEED WHERE CLAUSE WHILE QUERYING A DATABASE!!!
+        return service.getAllPolicies();
+    }
+
+    @PutMapping(path = "policies/add")
+    public void putNewPolicy(@RequestParam PolicyDTO policyDTO) {
+        service.savePolicy(policyDTO);
+    }
+
+}