init csv support

build.gradle

@@ -66,6 +66,7 @@ dependencies {
 	implementation 'io.springfox:springfox-swagger2:2.9.2'
 	implementation 'io.springfox:springfox-swagger-ui:2.9.2'
 	implementation 'com.github.javafaker:javafaker:1.0.2'
+	implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-csv:2.10.2'
 
 	compileOnly 'org.projectlombok:lombok'
 	annotationProcessor 'org.projectlombok:lombok'

src/main/java/mops/gruppen2/controller/APIController.java

@@ -7,12 +7,11 @@ import mops.gruppen2.domain.Exceptions.EventException;
 import mops.gruppen2.domain.Group;
 import mops.gruppen2.domain.apiWrapper.UpdatedGroupRequestMapper;
 import mops.gruppen2.domain.event.Event;
-import mops.gruppen2.service.APIFormatterService;
+import mops.gruppen2.service.*;
-import mops.gruppen2.service.EventService;
-import mops.gruppen2.service.GroupService;
-import mops.gruppen2.service.SerializationService;
 import org.springframework.web.bind.annotation.*;
 
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.List;
 
 /**
@@ -55,4 +54,9 @@ public class APIController {
         List<Group> groups = groupService.projectEventList(eventList);
         return groups.get(0);
     }
+
+    @PostMapping(value = "/uploadcsv", consumes = "text/csv")
+    public void uploadCsv(@RequestBody InputStream body) throws IOException {
+        System.out.println(CsvService.read(body));
+    }
 }

src/main/java/mops/gruppen2/service/CsvService.java

@@ -0,0 +1,22 @@
+package mops.gruppen2.service;
+
+import com.fasterxml.jackson.databind.ObjectReader;
+import com.fasterxml.jackson.dataformat.csv.CsvMapper;
+import com.fasterxml.jackson.dataformat.csv.CsvSchema;
+import mops.gruppen2.domain.User;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+
+public class CsvService {
+
+    public static List<User> read(InputStream stream) throws IOException {
+        CsvMapper mapper = new CsvMapper();
+
+        CsvSchema schema = mapper.schemaFor(User.class).withHeader().withColumnReordering(true);
+        ObjectReader reader = mapper.readerFor(User.class).with(schema);
+
+        return reader.<User>readValues(stream).readAll();
+    }
+}