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MINIFICPP-2376 Add support for parameter context inheritance #1888

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MINIFICPP-2376 Add support for parameter context inheritance #1888

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26 changes: 25 additions & 1 deletion CONFIGURE.md
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Original file line number Diff line number Diff line change
Expand Up @@ -139,12 +139,25 @@ Processor properties in flow configurations can be parameterized using parameter
- `#` character can be used to escape the parameter syntax. E.g. if the `parameterName` parameter's value is `xxx` then `#{parameterName}` will be replaced with `xxx`, `##{parameterName}` will be replaced with `#{parameterName}`, and `#####{parameterName}` will be replaced with `##xxx`.
- Sensitive parameters can only be assigned to sensitive properties and non-sensitive parameters can only be assigned to non-sensitive properties.

Parameter contexts can be inherited from multiple other parameter contexts. The order of the parameter inheritance matters in the way that if a parameter is present in multiple parameter contexts, the parameter value assigned to the first parameter in the inheritance order will be used. No circular inheritance is allowed.

An example for using parameters in a JSON configuration file:

```json
{
"parameterContexts": [
{
"identifier": "235e6b47-ea22-45cd-a472-545801db98e6",
"name": "common-parameter-context",
"description": "Common parameter context",
"parameters": [
{
"name": "common_timeout",
"description": "Common timeout seconds",
"sensitive": false,
"value": "30"
}
],
"identifier": "804e6b47-ea22-45cd-a472-545801db98e6",
"name": "root-process-group-context",
"description": "Root process group parameter context",
Expand All @@ -155,7 +168,8 @@ An example for using parameters in a JSON configuration file:
"sensitive": false,
"value": "/tmp/tail/file/path"
}
]
],
"inheritedParameterContexts": ["common-parameter-context"]
}
],
"rootGroup": {
Expand Down Expand Up @@ -194,6 +208,14 @@ An example for using parameters in a YAML configuration file:
Flow Controller:
name: MiNiFi Flow
Parameter Contexts:
- id: 235e6b47-ea22-45cd-a472-545801db98e6
name: common-parameter-context
description: Common parameter context
Parameters:
- name: common_timeout
description: 'Common timeout seconds'
sensitive: false
value: 30
- id: 804e6b47-ea22-45cd-a472-545801db98e6
name: root-process-group-context
description: Root process group parameter context
Expand All @@ -202,6 +224,8 @@ An example for using parameters in a YAML configuration file:
description: 'Base dir of tailed files'
sensitive: false
value: /tmp/tail/file/path
Inherited Parameter Contexts:
- common-parameter-context
Processors:
- name: Tail test_file1.log
id: 83b58f9f-e661-4634-96fb-0e82b92becdf
Expand Down
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