simonbence commented on code in PR #7218:
URL: https://github.com/apache/nifi/pull/7218#discussion_r1218085936
##########
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core-api/src/main/java/org/apache/nifi/registry/flow/FlowRegistryClientNode.java:
##########
@@ -44,7 +44,7 @@ public interface FlowRegistryClientNode extends ComponentNode
{
RegisteredFlow getFlow(FlowRegistryClientUserContext context, String
bucketId, String flowId) throws FlowRegistryException, IOException;
Set<RegisteredFlow> getFlows(FlowRegistryClientUserContext context, String
bucketId) throws FlowRegistryException, IOException;
- RegisteredFlowSnapshot getFlowContents(FlowRegistryClientUserContext
context, String bucketId, String flowId, int version, boolean fetchRemoteFlows)
throws FlowRegistryException, IOException;
+ FlowSnapshotContainer getFlowContents(FlowRegistryClientUserContext
context, String bucketId, String flowId, int version, boolean fetchRemoteFlows)
throws FlowRegistryException, IOException;
Review Comment:
This looks to be a breaking change on the API. I think, this can be okay for
a 2.X change, but the Apache ticket is marked as an 1.21.0
##########
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core-api/src/main/java/org/apache/nifi/registry/flow/FlowSnapshotContainer.java:
##########
@@ -0,0 +1,141 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.registry.flow;
+
+import org.apache.nifi.flow.ParameterProviderReference;
+import org.apache.nifi.flow.VersionedParameter;
+import org.apache.nifi.flow.VersionedParameterContext;
+import org.apache.nifi.flow.VersionedProcessGroup;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+
+/**
+ * Holds the results of recursively fetching the contents of a registered flow
snapshot where some child groups may
+ * also be under version control. The top level flow snapshot will have the
contents of all the child groups populated,
+ * and the child snapshots here provide a mechanism to obtain the
corresponding metadata for a versioned controlled
+ * child group, such as the external service references, etc.
+ */
+public class FlowSnapshotContainer {
Review Comment:
Minor: I would find it beneficial to mark this as final
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