export almost working

1 files changed, 10 insertions, 11 deletions

diff --git a/src/main/java/design/persistence/JSONLeagueDatabase.java b/src/main/java/design/persistence/JSONLeagueDatabase.java
index edc649b..795c582 100644
--- a/src/main/java/design/persistence/JSONLeagueDatabase.java
+++ b/src/main/java/design/persistence/JSONLeagueDatabase.java
@@ -13,8 +13,6 @@ import design.model.League;
 
 import java.io.File;
 import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.StandardCopyOption;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
@@ -100,18 +98,19 @@ public class JSONLeagueDatabase implements LeagueDatabase {
         save();
     }
 
-    public File exportData(File newFile) throws IOException{
-        Files.copy(file.toPath(), newFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
-        return newFile;
-    }
-
-    public void importData(File newFile) throws IOException {
-        League[] newLeagues = mapper.readValue(newFile, League[].class);
+    @Override
+    public void importData(JsonNode tree) throws IOException {
+        League[] data = mapper.treeToValue(tree, League[].class);
         cache.clear();
-        for (League l: newLeagues) {
-            cache.put(l.getId(), l);
+        for (League league : data) {
+            cache.put(league.getId(), league);
         }
         save();
     }
 
+    @Override
+    public JsonNode exportData() {
+        Object[] data = cache.values().toArray();
+        return mapper.valueToTree(data);
+    }
 }