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https://issues.apache.org/jira/browse/NIFIREG-190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16575718#comment-16575718
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ASF GitHub Bot commented on NIFIREG-190:
----------------------------------------
Github user kevdoran commented on a diff in the pull request:
https://github.com/apache/nifi-registry/pull/133#discussion_r209136065
--- Diff:
nifi-registry-framework/src/main/java/org/apache/nifi/registry/provider/hook/AbstractEventHookProvider.java
---
@@ -0,0 +1,72 @@
+/*
+ * 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.provider.hook;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.nifi.registry.hook.EventHookProvider;
+import org.apache.nifi.registry.hook.EventType;
+import org.apache.nifi.registry.provider.ProviderConfigurationContext;
+import org.apache.nifi.registry.provider.ProviderCreationException;
+import org.springframework.util.CollectionUtils;
+
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public abstract class AbstractEventHookProvider
--- End diff --
I'm good with either. If we move it to the API, so third-party impls can
use it (which would be nice), we should probably remove the dep on
`org.springframework.util.CollectionUtils`
> Support for Event Whitelisting in the Registry Event Hooks
> ----------------------------------------------------------
>
> Key: NIFIREG-190
> URL: https://issues.apache.org/jira/browse/NIFIREG-190
> Project: NiFi Registry
> Issue Type: New Feature
> Affects Versions: 0.2.0
> Reporter: Jeremy Dyer
> Assignee: Jeremy Dyer
> Priority: Major
> Fix For: 0.3.0
>
>
> Today when an event hook is configured it will be invoked for all of the NiFi
> Registry events. While a user can parse the arguments in the script and
> manually write scripts which ignore certain events it makes more sense to
> provide this event whitelisting the the registry itself.
> I propose adding a new property called something like "Event Whitelist" to
> the current configuration logic. If this property is not present things
> should continue to operate just as they do now, AKA the script is sent all of
> the events, if the property is specified it should contain a comma delimited
> list of events that the hook provider should be triggered for.
> This will be extremely useful when providers that do not provider any sort of
> filtering logic like the script hook provider come along.
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