Christian Fries created ZEPPELIN-2586:
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Summary: Allow dependency management to bring up a popup with
option to restart interpreter
Key: ZEPPELIN-2586
URL: https://issues.apache.org/jira/browse/ZEPPELIN-2586
Project: Zeppelin
Issue Type: Improvement
Components: Interpreters
Affects Versions: 0.8.0
Reporter: Christian Fries
If a notebook has a specific dependency, it should be possible to specify this
requirement in the notebook via a %dep paragraph, which prompts the user for
actions (compared to giving ERROR as with z.load).
This is especially helpful, if the notebook is exported via JSON and send to
another user.
In contrast to the z.load command, the notebook should behave as follows:
- if the dependency is already part of the interpreter, the command is
silently ignored.
- if the dependency is not part of the interpreter, a pop-up shows up
presenting the following text and options: *This notebook requires
groupId:artifactId:version.
-- Permanently add dependency to the interpreter and restart the interpreter.
-- Temporarily add dependency to interpreter and restart interpreter.
-- Cancel
In addition it should be possible to specify version requirements in a more
flexible way, e.g. requiring 2.*.* or 2+.*.* where 2+ indicates greater or
equal 2.
Note: Afaik, z.load() is currently failing when it is not issued before any
spark paragraph - even if the dependency was already loaded or specified. The
feature above could be an improvement of z.load() but I would suggest an
additional z.require().
Suggestion: The z.require command should allow to specify an additional
message. Example:
{code}
%dep
z.require("This notebook requires finmath-lib version 2 or greater to perform
Monte-Carlo simulations", "net.finmath:finmath-lib", "2+.*.*")
{code}
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