KevinGG commented on a change in pull request #11276: [BEAM-7923] An indicator
of progress in notebooks
URL: https://github.com/apache/beam/pull/11276#discussion_r401251743
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File path: sdks/python/apache_beam/runners/interactive/utils.py
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@@ -142,3 +142,61 @@ def obfuscate(*inputs):
str_inputs = [str(input) for input in inputs]
merged_inputs = '_'.join(str_inputs)
return hashlib.md5(merged_inputs.encode('utf-8')).hexdigest()
+
+
+class ProgressIndicator(object):
+ """An indicator visualizing code execution in progress."""
+ spinner_template = """
+ <link rel="stylesheet"
href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css";
integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh"
crossorigin="anonymous">
+ <div id="{id}" class="spinner-border text-info" role="status">
+ </div>"""
+ spinner_removal_template = """
+ $("#{id}").remove();"""
+
+ def __init__(self, enter_text, exit_text):
+ # type: (str, str) -> None
+
+ self._id = 'progress_indicator_{}'.format(obfuscate(id(self)))
Review comment:
`obfuscate` is defined within the same module.
It's a way to disguise your backend logic from the frontend, basically a
hash. It's common to see obfuscation in Javascripts.
Here we obfuscates the id of a python object in kernel and use it as part of
the id of a Javascript div.
Here is some additional reading about obfuscate:
https://medium.com/nodesimplified/obfuscation-what-is-obfuscation-in-javascript-why-obfuscation-is-used-f6a5f5bcf022
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