NIFI-15300 - Fix missing migrateProperties() for Proxy Service configuration

[pvillard31]

Summary

NIFI-15300 - Fix missing migrateProperties() for Proxy Service configuration

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[dan-s1]

I will keep reviewing I had the comment I left but I also do no see migrations for all the classes which use AzureStorageUtils.PROXY_CONFIGURATION_SERVICE i.e. all

1. ###AzureBlobStorage_v12
2. ###AzureDataLakeStorage
3. ADLSCredentialsControllerService

Also I do not see migrations for

1. AbstractGCPProcessor
2. Any class using FTPTransfer.PROXY_CONFIGURATION_SERVICE (FetchFTP, GetFTP, ListFTP, PutFTP)

[dan-s1]

Since the migration is happening in the parent class, wouldn't it make sense to define the property with value ProxyConfiguration.createProxyConfigPropertyDescriptor(PROXY_SPECS) in this class and have it shared with its children GetAzureQueueStorage_v12 and PutAzureQueueStorage_v12 instead of making this call in both children?

[pvillard31]

• AbstractGCPProcessor and all GCP processors - calls ProxyServiceMigration.migrateProxyProperties() which now includes the rename
• FTP/SFTP Processors (FetchFTP, GetFTP, ListFTP, PutFTP, FetchSFTP, GetSFTP, ListSFTP, PutSFTP, DeleteSFTP) - call FTPTransfer.migrateProxyProperties() → ProxyServiceMigration.migrateProxyProperties()

[exceptionfactory]

Thanks for addressing the Proxy Service migration handling across these components @pvillard31, and thanks for the review @dan-s1, the updates look good.