[T6A1][F12-B1]Wang Si Qi

src/seedu/addressbook/logic/Logic.java

@@ -5,6 +5,7 @@
 import seedu.addressbook.data.AddressBook;
 import seedu.addressbook.data.person.ReadOnlyPerson;
 import seedu.addressbook.parser.Parser;
+import seedu.addressbook.storage.Storage;
 import seedu.addressbook.storage.StorageFile;
 
 import java.util.Collections;
@@ -17,7 +18,7 @@
 public class Logic {
 
 
-    private StorageFile storage;
+    private Storage storage;
     private AddressBook addressBook;
 
     /** The list of person shown to the user most recently.  */

src/seedu/addressbook/storage/Storage.java

@@ -0,0 +1,18 @@
+package seedu.addressbook.storage;
+
+import java.nio.file.Path;
+
+import javax.xml.bind.JAXBContext;
+
+import seedu.addressbook.data.AddressBook;
+import seedu.addressbook.storage.StorageFile.StorageOperationException;
+
+public abstract class Storage {
+
+
+    public abstract void save(AddressBook addressBook) throws StorageOperationException;
+
+    public abstract AddressBook load() throws StorageOperationException;
+
+    public abstract String getPath();
+}

src/seedu/addressbook/storage/StorageFile.java

@@ -15,7 +15,7 @@
 /**
  * Represents the file used to store address book data.
  */
-public class StorageFile {
+public class StorageFile extends Storage {
 
     /** Default file path used if the user doesn't provide the file name. */
     public static final String DEFAULT_STORAGE_FILEPATH = "addressbook.txt";
@@ -83,6 +83,7 @@ private static boolean isValidPath(Path filePath) {
      *
      * @throws StorageOperationException if there were errors converting and/or storing data to file.
      */
+    @Override
     public void save(AddressBook addressBook) throws StorageOperationException {
 
         /* Note: Note the 'try with resource' statement below.
@@ -108,6 +109,7 @@ public void save(AddressBook addressBook) throws StorageOperationException {
      *
      * @throws StorageOperationException if there were errors reading and/or converting data from file.
      */
+    @Override
     public AddressBook load() throws StorageOperationException {
         try (final Reader fileReader =
                      new BufferedReader(new FileReader(path.toFile()))) {
@@ -141,6 +143,7 @@ public AddressBook load() throws StorageOperationException {
         }
     }
 
+    @Override
     public String getPath() {
         return path.toString();
     }