Fixed the improvements

Author: AayushSaini101

pom.xml

@@ -48,6 +48,7 @@
     <spotless-maven-plugin.version>2.44.2</spotless-maven-plugin.version>
     <maven-enforcer-plugin.version>3.5.0</maven-enforcer-plugin.version>
     <maven-javadoc-plugin.version>3.11.2</maven-javadoc-plugin.version>
+
   </properties>
 
   <dependencyManagement>
@@ -180,6 +181,7 @@
       <artifactId>system-stubs-jupiter</artifactId>
       <scope>test</scope>
     </dependency>
+
   </dependencies>
 
   <build>

src/main/java/land/oras/auth/FileStoreAuthenticationProvider.java

@@ -0,0 +1,9 @@
+package land.oras.auth;
+
+public class FileStoreAuthenticationProvider implements AuthProvider{
+
+    @Override
+    public String getAuthHeader() {
+        return "";
+    }
+}

src/main/java/land/oras/credentials/FileStore.java

@@ -3,6 +3,7 @@
 import java.io.FileReader;
 import java.io.IOException;
 import java.nio.file.Files;
+import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.Map;
 import java.util.Objects;
@@ -113,26 +114,20 @@ public static class Config {
      */
     public static Config load(String configPath) throws ConfigLoadingException {
 
-        try (FileReader reader = new FileReader(Paths.get(configPath).toFile())) {
-            // Read the file content and deserialize into a Map<String, Credential>
-            Map<String, Credential> credentials = JsonUtils.fromJson(reader, new TypeToken<Map<String, Credential>>(){}.getType());
+        Map<String, Credential> credentials = JsonUtils.fromJson(Path.of(configPath), new TypeToken<Map<String, Credential>>(){}.getType());
 
-            Config config = new Config();
+        Config config = new Config();
 
-            for (Map.Entry<String, Credential> entry : credentials.entrySet()) {
+        for (Map.Entry<String, Credential> entry : credentials.entrySet()) {
 
-                String serverAddress = entry.getKey();
-                Credential credential = entry.getValue();
-                // Put the serverAddress and Credential into the credentialStore
-                config.credentialStore.put(serverAddress, credential);
-            }
+            String serverAddress = entry.getKey();
+            Credential credential = entry.getValue();
+            // Put the serverAddress and Credential into the credentialStore
+            config.credentialStore.put(serverAddress, credential);
+        }
 
-            return config;
+        return config;
 
-        } catch (IOException e) {
-            // Handle issues related to file reading or file not found
-            throw new ConfigLoadingException("Failed to read the configuration file: " + configPath, e);
-        }
     }
 
         public Credential getCredential(String serverAddress) {

src/main/java/land/oras/utils/JsonUtils.java

@@ -42,9 +42,6 @@ private JsonUtils() {
         // Hide constructor
     }
 
-    public static Map<String, FileStore.Credential> fromJson(FileReader reader, Type type) {
-        return gson.fromJson(reader, type);
-    }
 
     /**
      * Type adapter for ZonedDateTime
@@ -101,4 +98,20 @@ public static <T> T fromJson(Path path, Class<T> clazz) {
             throw new OrasException("Unable to read JSON file due to IO error", e);
         }
     }
+
+     /**
+     * Convert a JSON string to an object
+     * @param path The path to the JSON file
+     * @param type The class of the object
+     * @return The object
+     */
+    public static <T> T fromJson(Path path, Type type) {
+        try {
+            return gson.fromJson(Files.readString(path, StandardCharsets.UTF_8), type);
+        } catch (IOException e) {
+            throw new OrasException("Unable to read JSON file due to IO error", e);
+        }
+    }
+
+
 }