bbende commented on code in PR #8726:
URL: https://github.com/apache/nifi/pull/8726#discussion_r1589526553
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nifi-api/src/main/java/org/apache/nifi/registry/flow/FlowRegistryClient.java:
##########
@@ -71,30 +74,82 @@ public interface FlowRegistryClient extends
ConfigurableComponent {
*/
boolean isStorageLocationApplicable(FlowRegistryClientConfigurationContext
context, String location);
+ /**
+ * Indicates if the registry supports branching.
+ *
+ * @param context Configuration context
+ * @return true if the registry supports branching, false otherwise
+ */
+ default boolean isBranchingSupported(final
FlowRegistryClientConfigurationContext context) {
+ return false;
+ }
+
+ /**
+ * Get the available branches. Should return at least one branch that
matches the response of getDefaultBranch.
+ *
+ * @param context Configuration context
+ * @return the set of available branches
+ *
+ * @throws FlowRegistryException If an issue happens during processing the
request.
+ * @throws IOException If there is issue with the communication between
NiFi and the Flow Registry.
+ */
+ default Set<FlowRegistryBranch> getBranches(final
FlowRegistryClientConfigurationContext context) throws FlowRegistryException,
IOException {
+ return Set.of(getDefaultBranch(context));
+ }
+
+ /**
+ * Gets the default branch. Must return a non-null FlowRegistryBranch
instance with a non-null name.
+ *
+ * @param context Configuration context
+ * @return the default branch
+ *
+ * @throws FlowRegistryException If an issue happens during processing the
request.
+ * @throws IOException If there is issue with the communication between
NiFi and the Flow Registry.
+ */
+ default FlowRegistryBranch getDefaultBranch(final
FlowRegistryClientConfigurationContext context) throws FlowRegistryException,
IOException {
+ final FlowRegistryBranch branch = new FlowRegistryBranch();
+ branch.setName(DEFAULT_BRANCH_NAME);
+ return branch;
+ }
+
+ /**
+ * Creates a new branch from a given branch.
+ *
+ * @param context Configuration context
+ * @param createBranch the info for creating the branch
+ *
+ * @throws FlowRegistryException If an issue happens during processing the
request.
+ * @throws IOException If there is issue with the communication between
NiFi and the Flow Registry.
+ */
+ default void createBranch(FlowRegistryClientConfigurationContext context,
final CreateBranch createBranch) throws FlowRegistryException, IOException {
Review Comment:
I agree, I am going to remove the `createBranch` method and `CreateBranch`
object for now, which addresses some of the discussion/questions. It can be
added in a non-breaking way later if we decide we ever want to create branches
from NiFi, but I have a feeling we don't want to.
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