added league JSON import/export, still working with XML import

1 files changed, 17 insertions, 0 deletions

diff --git a/src/main/java/design/persistence/JSONLeagueDatabase.java b/src/main/java/design/persistence/JSONLeagueDatabase.java
index 8b201e6..edc649b 100644
--- a/src/main/java/design/persistence/JSONLeagueDatabase.java
+++ b/src/main/java/design/persistence/JSONLeagueDatabase.java
@@ -13,6 +13,8 @@ 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;
@@ -97,4 +99,19 @@ public class JSONLeagueDatabase implements LeagueDatabase {
         cache.put(league.getId(), league);
         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);
+        cache.clear();
+        for (League l: newLeagues) {
+            cache.put(l.getId(), l);
+        }
+        save();
+    }
+
 }