Add relationship to User and event handler

Author: mraible

pom.xml

@@ -64,6 +64,11 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.data</groupId>
+            <artifactId>spring-data-rest-core</artifactId>
+            <version>3.0.8.RELEASE</version>
+        </dependency>
     </dependencies>
 
     <build>

src/main/java/com/okta/developer/jugtours/model/Group.java

@@ -1,10 +1,11 @@
 package com.okta.developer.jugtours.model;
 
-import lombok.*;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.NonNull;
+import lombok.RequiredArgsConstructor;
 
 import javax.persistence.*;
-import javax.validation.constraints.NotBlank;
-import javax.validation.constraints.NotNull;
 import java.util.Set;
 
 @Data
@@ -24,6 +25,8 @@ public class Group {
     private String stateOrProvince;
     private String country;
     private String postalCode;
+    @ManyToOne
+    private User user;
 
     @OneToMany(fetch = FetchType.EAGER, cascade=CascadeType.ALL)
     private Set<Event> events;

src/main/java/com/okta/developer/jugtours/model/GroupEventHandler.java

@@ -0,0 +1,25 @@
+package com.okta.developer.jugtours.model;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.data.rest.core.annotation.HandleBeforeSave;
+import org.springframework.data.rest.core.annotation.RepositoryEventHandler;
+import org.springframework.security.core.context.SecurityContextHolder;
+
+import java.util.Map;
+
+@RepositoryEventHandler(Group.class)
+public class GroupEventHandler {
+
+    private final Logger log = LoggerFactory.getLogger(GroupEventHandler.class);
+
+    @HandleBeforeSave
+    @SuppressWarnings("unchecked")
+    public void handleBeforeSave(Group group) {
+        Map<String, Object> details = (Map<String, Object>) SecurityContextHolder.getContext()
+                .getAuthentication().getDetails();
+        User user = new User(null, details.get("name").toString(), details.get("email").toString());
+        log.info("Creating group: {} with user: {}", group.getName());
+        group.setUser(user);
+    }
+}

src/main/java/com/okta/developer/jugtours/model/GroupRepository.java

@@ -2,6 +2,9 @@
 
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.util.List;
+
 public interface GroupRepository extends JpaRepository<Group, Long> {
     Group findByName(String name);
+    List<Group> findAllByUserName(String name);
 }

src/main/java/com/okta/developer/jugtours/web/GroupController.java

@@ -11,6 +11,7 @@
 import javax.validation.Valid;
 import java.net.URI;
 import java.net.URISyntaxException;
+import java.security.Principal;
 import java.util.Collection;
 import java.util.Optional;
 
@@ -26,8 +27,8 @@ public GroupController(GroupRepository repository) {
 	}
 
 	@GetMapping("/groups")
-	Collection<Group> groups() {
-		return repository.findAll();
+	Collection<Group> groups(Principal principal) {
+		return repository.findAllByUserName(principal.getName());
 	}
 
     @GetMapping("/group/{id}")