Tamas Palfy created NIFI-8650:
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Summary: Flow Analysis
Key: NIFI-8650
URL: https://issues.apache.org/jira/browse/NIFI-8650
Project: Apache NiFi
Issue Type: New Feature
Components: Core Framework
Reporter: Tamas Palfy
Add new concept: Flow analysis based on user-defined rules
UNDER CONSTRUCTION
Flow analysis checks wether the flow is in a "proper" state.
What constitutes "proper" is defined by the users by creating flow analysis
rules.
These rules are a new type of component and behave as such in almost every
aspect. (They can have properties, they can be added to nifi as extensions via
nars, they are versioned, persisted in flow.xml etc.)
The framework takes care of running the rules as appropriate.
Each rule is provided a representation of the flow (or part of it) -defined by
an interface- and may analyze it in any way it seems fit. The result of the
analysis is represented by zero or more rule violation result objects that the
framework accepts and handles from then on.
The effect of the analysis result by a given rule depends on the type of the
rule, which can be either _recommendation_ or _policy_.
Recommendations are information displayed to the user.
Policies are more strict. Apart from being available to be viewed by the user
(similar to recommendations), they also invalidate the components that violated
the corresponding rule.
The analysis results can be displayed and can be disabled (ignored) or
re-enabled.
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