Fixed the order by sorting the list, updated code is available at: https://bitbucket.org/jaya-sravani/integrated-genome-browser/branch/IGBF-3774. Now, the data providers are being initialized based on the load priority, can verify this in the logs. Please review and let me know if there are any issues.

Small issue where the UCSC REST provider is being initialized twice. Talked with Sravani and she has a fix, will include as an additional commit.

Fixed it and updated code is present at the branch: https://bitbucket.org/jaya-sravani/integrated-genome-browser/branch/IGBF-3774.

Yes, Dr.Freese they are dependent, I have fixed the issue and updated the commit. I forgot to run the tests in my local, that's why I missed it, thanks for finding it out.

Tested on Mac using Sravani's branch.

Data providers are now initialized according to the loadPriority, as indicated by looking at the IGB logs and comparing the initialization order between main and IGBF-3774.

Note that the loadPriority also appears to determine the order of the Quickloads/REST API in the Available Data window and in the Data Sources tab. See IGBF-1220 for more information. Right now we have several Quickloads set to the same loadPriority, and may want to update these.

Ready for pull request.

Created a Pull request: https://bitbucket.org/lorainelab/integrated-genome-browser/pull-requests/1021

Before I merge this, I need to ask about whether this change is affecting the order in which Quickload folders appear in the Available Data Sets data set chooser interface.

How has the folder order changed as a result of this new code?

A little background:

"Load priority" got set up in our code as a way to specify the data source that would be relied on to provide genomic sequence data for the genome version being shown. Everything else that it may do is basically a side effect. This has caused problems in the past, and I'm a little worried that due to my memory being incomplete, I'm not remembering some serious "gotchas" that may cause unforeseen problems.

Also, "load priority" may have been intentionally designed to accommodate ties - e.g., data providers with equal load priority values. The new sorting mechanism may need to handle the case of ties.

Note: I am moving this back to "To Do" with hopes that Jaya Sravani Sirigineedi and Nowlan Freese can take a look.

Ann Loraine - Sravani's code change should only affect the order in which the data providers are initialized. She added a sort based on load priority to the IgbPreferencesLoadingOrchestrator class.

OLD: dataProviders.stream().distinct().forEach(dataProvider
NEW: dataProviders.stream().distinct().sorted(Comparator.comparing(DataProviderConfig::getLoadPriority)).forEach(dataProvider

The other code changes in the ticket fix an issue where the UCSC REST data provider was being initialized more than once.

While I did not specifically test the data loading order, based on comments in IGBF-1220, the loading of data by IGB is also done based on a sorting of the load priority, so I don't foresee the code changes in this ticket affecting it. The order of the Quickload folders is also unaffected, both Sravani and I saw that they continue to follow the load priority.

Note that we need the order of data provider initialization to be sorted so that we can initialize the Ensembl data provider last. This is important as some of the genomes provided by Ensembl are already included in IGB, and we did not want to have the same genome appearing twice.

Thanks for the explanation Nowlan Freese! I am proceeding to merge the PR.

PR is merged and new installers built and deployed to bioviz.org early access section.

Tested on Linux with main branch installer.

Data providers are initialized based on their load priority.

Closing ticket.