java - FireBase Storage MetaData-Updated Time returning 0?

Question

I am attempting to use Firebase to store and sync several CSV files. Copies of these CSV files are stored in internal storage.

To update them locally, I am looping through all items within the Firebase Storage bucket, comparing the updated times between the two and then if there is a new version, downloading it.

Everything seems to be working perfectly except the metadata fetching from Firebase, the lastupdated time of the Firebase files is always returning a zero? I find this very odd, because it can download the file just fine, meaning there shouldn't be a Firebase rule blocking a metadata fetch request or anything. Is last updated time by default 0 unless is it manually added?

public void updateDataBase(View view){
    FirebaseStorage firebaseStorage = FireBaseStorage.getInstance();
    StorageReference reference = firebaseStorage.getReference().getRoot();

    final File rootpath = new File(getFilesDir(),"database");
    if(!rootpath.exists()){
        Log.i(TAG,"Folder Created: " + rootpath.mkdirs());
    }
    reference.listAll().addOnSuccessListener(new OnSuccessListener<ListResult>() {
        @Override
        public void onSuccess(ListResult listResult) {
            for(final StorageReference item : listResult.getItems()) {
                final File localFile = new File(rootpath, item.getName());
                final long[] onlineFileChangeDate = new long[1];
                item.getMetadata().addOnSuccessListener(new OnSuccessListener<StorageMetadata>() {
                    @Override
                    public void onSuccess(StorageMetadata storageMetadata) {
                        onlineFileChangeDate[0] = storageMetadata.getUpdatedTimeMillis();
                    }
                });
                Log.i("Settings","LastModified: " + localFile.lastModified());
                Log.i("Settings", "LastModified:" + onlineFileChangeDate[0]);
                if (localFile.lastModified() > onlineFileChangeDate[0]) {
                    Log.i(TAG, "File deleted " + localFile.delete());
                    item.getFile(localFile).addOnSuccessListener(new OnSuccessListener<FileDownloadTask.TaskSnapshot>() {
                        @Override
                        public void onSuccess(FileDownloadTask.TaskSnapshot taskSnapshot) {
                            Toast.makeText(settings.this, "Downloaded: " + localFile, Toast.LENGTH_SHORT).show();

                        }
                    });

                }
            }
            Toast.makeText(settings.this, "Update Complete", Toast.LENGTH_SHORT).show();
        }
    }).addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.e(TAG,"Firebase Update Error");
                }
            });
}

Answer 1

Waitting for answers