Reamer commented on a change in pull request #4252:
URL: https://github.com/apache/zeppelin/pull/4252#discussion_r736417406
##########
File path:
zeppelin-zengine/src/main/java/org/apache/zeppelin/notebook/Notebook.java
##########
@@ -391,13 +392,76 @@ public Note getNote(String noteId, boolean reload) throws
IOException {
return note;
}
- public void saveNote(Note note, AuthenticationInfo subject) throws
IOException {
- noteManager.saveNote(note, subject);
+ /**
+ * Save an existing note in an eviction aware fashion with only before save
callback.
+ *
+ * @param nodeId noteId to run save operation on
+ * @param subject current subject
+ * @param beforeSave callback for applying an changes to the note before
saving it to the notebook repo.
+ *
+ * @see #saveExistingNote(String, AuthenticationInfo, NoteSaveCallback,
NoteSaveCallback)
+ */
+ public <T> T saveExistingNote(String noteId, AuthenticationInfo subject,
+ NoteBeforeSaveCallback<T> beforeSave) throws IOException {
+ return saveExistingNote(noteId, subject, beforeSave, null);
+ }
+
+ /**
+ * Save an existing note in an eviction aware fashion using callbacks around
the save operations.
+ * When no note exists for given noteId, only beforeSave callback is
processed.
+ *
+ * @param nodeId noteId to run save operation on
+ * @param subject current subject
+ * @param beforeSave callback for applying an changes to the note before
saving it to the notebook repo.
+ * @param afterSave callback for applying an changes to the note after
saving it to the notebook repo.
+ * @return the result of the beforeSave callback
+ */
+ public <T> T saveExistingNote(String noteId, AuthenticationInfo subject,
+ NoteBeforeSaveCallback<T> beforeSave, NoteAfterSaveCallback<T>
afterSave) throws IOException {
+ final Note note = getNote(noteId, false);
+
+ if (note == null) { // callback contract: run beforeSave callback also
when no note exists for given noteId
Review comment:
To return a correct answer as in this
[case](https://github.com/apache/zeppelin/pull/4252/files#diff-5fca6cde02fb95c432560e3adfb7a7a20822a03cfcfb301c5262622dd8ac10abL353).
Or to return the right exception as in this
[case](https://github.com/apache/zeppelin/pull/4252/files#diff-5fca6cde02fb95c432560e3adfb7a7a20822a03cfcfb301c5262622dd8ac10abL558).
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