VinceCastro opened a new pull request #3700: NIFI-6638: Empty multiple queues at once at different flow levels URL: https://github.com/apache/nifi/pull/3700 This PR also refers to NIFI-3632, NIFI-5329 and NIFI-4308. #### Description of PR Replaced the current "Empty queue" button in the context menu with an "Empty queues" sub-menu providing different options to empty multiple queues at different levels of the flow depending on the selected components. In particular, different buttons have been added to the new "Empty queues" sub-menu: - selected queue: empty the selected queue - selected queues: empty the selected queues - current process group: empty all queues inside the current process group - current process group (recursive): empty all queues inside the current process group recursively, which means all queues inside the current process group, and its sub process groups, and their sub process groups [and so on] will be emptied - selected process group: empty all queues inside the selected process group - selected process group (recursive): empty all queues inside the selected process group recursively - selected process groups: empty all queues inside the selected process groups - selected process groups (recursive): empty all queues inside the selected process groups recursively **Errors management**: if the emptying process fails to empty one or more queues, it keeps going till all the selected queues are processed. After that, the final summary dialog eventually provides information about the errors faced in emptying one or more queues. In order to streamline the review of the contribution we ask you to ensure the following steps have been taken: ### For all changes: - [x] Is there a JIRA ticket associated with this PR? Is it referenced in the commit message? - [x] Does your PR title start with **NIFI-XXXX** where XXXX is the JIRA number you are trying to resolve? Pay particular attention to the hyphen "-" character. - [x] Has your PR been rebased against the latest commit within the target branch (typically `master`)? - [x] Is your initial contribution a single, squashed commit? _Additional commits in response to PR reviewer feedback should be made on this branch and pushed to allow change tracking. Do not `squash` or use `--force` when pushing to allow for clean monitoring of changes._ ### For code changes: - [x] Have you ensured that the full suite of tests is executed via `mvn -Pcontrib-check clean install` at the root `nifi` folder? - [ ] Have you written or updated unit tests to verify your changes? - [x] Have you verified that the full build is successful on both JDK 8 and JDK 11? - [ ] If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under [ASF 2.0](http://www.apache.org/legal/resolved.html#category-a)? - [ ] If applicable, have you updated the `LICENSE` file, including the main `LICENSE` file under `nifi-assembly`? - [ ] If applicable, have you updated the `NOTICE` file, including the main `NOTICE` file found under `nifi-assembly`? - [ ] If adding new Properties, have you added `.displayName` in addition to .name (programmatic access) for each of the new properties? ### For documentation related changes: - [x] Have you ensured that format looks appropriate for the output in which it is rendered? ### Note: Please ensure that once the PR is submitted, you check travis-ci for build issues and submit an update to your PR as soon as possible.
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