Update the indicator controller to have CRUD operations.

src/main/java/space/kklochko/spring_rest_example/config/WebConfig.java

@@ -4,6 +4,7 @@ import java.sql.Timestamp;
 import java.util.List;
 import java.util.UUID;
 
+import jakarta.persistence.EntityManager;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
@@ -11,6 +12,8 @@ import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+import space.kklochko.spring_rest_example.db.factories.EntityManagerConnection;
+import space.kklochko.spring_rest_example.db.repositories.IndicatorRepository;
 import space.kklochko.spring_rest_example.models.Indicator;
 
 @EnableWebMvc
@@ -22,11 +25,13 @@ public class WebConfig implements WebMvcConfigurer {
         converters.add(new MappingJackson2HttpMessageConverter());
     }
 
-    @Bean("indicator")
+    @Bean
-    public Indicator getIndicator() {
+    public EntityManager manager() {
-        UUID id = UUID.fromString("becbafac-702c-11ee-9113-c0e4349366ab");
+        return (new EntityManagerConnection("spring_rest_example")).connect();
-        Timestamp timestamp = Timestamp.valueOf("2023-10-18 14:30:00");
+    }
-        Indicator indicator = new Indicator(id, "Blood2", "Fine2", timestamp);
+
-        return indicator;
+    @Bean
+    public IndicatorRepository indicatorRepository(EntityManager manager) {
+        return new IndicatorRepository(manager);
     }
 }

src/main/java/space/kklochko/spring_rest_example/controllers/IndicatorController.java

@@ -1,7 +1,11 @@
 package space.kklochko.spring_rest_example.controllers;
 
+import jakarta.persistence.Entity;
+import jakarta.persistence.EntityManager;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
+import space.kklochko.spring_rest_example.db.repositories.IndicatorRepository;
 import space.kklochko.spring_rest_example.models.Indicator;
 
 import java.sql.Timestamp;
@@ -13,22 +17,63 @@ import java.util.UUID;
 @RequestMapping("/api/v1/indicators")
 public class IndicatorController {
     @Autowired
-    Indicator indicator;
+    EntityManager manager;
-    @GetMapping("/{indicatorId}")
+
+    @Autowired
+    IndicatorRepository indicatorRepository;
+
+    @PostMapping
     @ResponseBody
-    public Indicator getIndicator(@PathVariable UUID indicatorId) {
+    public ResponseEntity<Object> create(@RequestBody Indicator indicator) {
-        return indicator;
+        Indicator isExist = indicatorRepository.read(indicator.getId());
+
+        if(isExist != null)
+            return ResponseEntity.status(500).body("Failed to create the indicator, because the id is already used!!!");
+
+        boolean successful = indicatorRepository.create(indicator);
+
+        if(!successful)
+            return ResponseEntity.status(500).body("Failed to create the indicator");
+
+	return ResponseEntity.status(201).body("The indicator created successfully");
+    }
+
+    @GetMapping("/{id}")
+    @ResponseBody
+    public Indicator get(@PathVariable UUID id) {
+        return indicatorRepository.read(id);
     }
 
     @GetMapping
     @ResponseBody
-    public List<Indicator> getIndicators() {
+    public List<Indicator> getAll() {
-        UUID id = UUID.fromString("becbafac-702c-11ee-9113-c0e4349366ab");
+        return indicatorRepository.readAll();
-        Timestamp timestamp = Timestamp.valueOf("2023-10-18 14:30:00");
+    }
-        Indicator indicator = new Indicator(id, "Blood2", "Fine2", timestamp);
+
-
+    @PutMapping
-        List<Indicator> indicators = new ArrayList<>();
+    @ResponseBody
-        indicators.add(indicator);
+    public ResponseEntity<Object> update(@RequestBody Indicator indicator) {
-        return indicators;
+        Indicator isExist = indicatorRepository.read(indicator.getId());
+
+        if(isExist == null)
+            return ResponseEntity.status(500).body("Failed to update the indicator, because the indicator does not exist!!!");
+
+        boolean successful = indicatorRepository.update(indicator);
+
+        if(!successful)
+            return ResponseEntity.status(500).body("Failed to update the indicator.");
+
+        return ResponseEntity.status(200).body("The indicator updated successfully");
+    }
+
+    @DeleteMapping("/{id}")
+    @ResponseBody
+    public ResponseEntity<Object> delete(@PathVariable UUID id) {
+        boolean successful = indicatorRepository.delete(id);
+
+        if(!successful)
+            return ResponseEntity.status(500).body("Failed to delete the indicator, because the indicator does not exist!!!");
+
+        return ResponseEntity.status(201).body("The indicator deleted successfully");
     }
 }

src/main/resources/META-INF/persistence.xml

@@ -3,19 +3,19 @@
              xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
              version="2.0">
 
-    <persistence-unit name="jpa_hospital_example">
+    <persistence-unit name="spring_rest_example">
         <description>
-            Persistence unit for the Jakarta Persistence of the JPA Hospital Example.
+            Persistence unit for the Jakarta Persistence of the Spring REST Example.
         </description>
 
         <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
-        <class>space.kklochko.jpa_hospital_example.models.Department</class>
+        <class>space.kklochko.spring_rest_example.models.Department</class>
-        <class>space.kklochko.jpa_hospital_example.models.Patient</class>
+        <class>space.kklochko.spring_rest_example.models.Patient</class>
-        <class>space.kklochko.jpa_hospital_example.models.Indicator</class>
+        <class>space.kklochko.spring_rest_example.models.Indicator</class>
 
         <properties>
             <property name="jakarta.persistence.jdbc.driver" value="org.postgresql.Driver" />
-            <property name="jakarta.persistence.jdbc.url" value="jdbc:postgresql://localhost:5432/testdb" />
+            <property name="jakarta.persistence.jdbc.url" value="jdbc:postgresql://postgres:5432/testdb" />
             <property name="jakarta.persistence.jdbc.user" value="user" />
             <property name="jakarta.persistence.jdbc.password" value="testpassword" />
 
@@ -29,13 +29,13 @@
 
     <persistence-unit name="testing">
         <description>
-            Test persistence unit for the Jakarta Persistence of the JPA Hospital Example.
+            Test persistence unit for the Jakarta Persistence of the Spring REST Example.
         </description>
 
         <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
-        <class>space.kklochko.jpa_hospital_example.models.Department</class>
+        <class>space.kklochko.spring_rest_example.models.Department</class>
-        <class>space.kklochko.jpa_hospital_example.models.Patient</class>
+        <class>space.kklochko.spring_rest_example.models.Patient</class>
-        <class>space.kklochko.jpa_hospital_example.models.Indicator</class>
+        <class>space.kklochko.spring_rest_example.models.Indicator</class>
 
         <properties>
             <property name="jakarta.persistence.jdbc.driver" value="org.postgresql.Driver" />