Jeremy Dyer created NIFI-1156:
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Summary: HTML Parsing Processors Bundle
Key: NIFI-1156
URL: https://issues.apache.org/jira/browse/NIFI-1156
Project: Apache NiFi
Issue Type: New Feature
Components: Core Framework
Reporter: Jeremy Dyer
Priority: Minor
NiFi provides the ability to ingest HTML but lacks the convenience to easily
interact with that HTML once it has entered the flow. There should be a HTML
Processing Bundle that provides mechanisms for manipulating and interacting
with HTML data once it has entered the flow. Jsoup http://jsoup.org/ seems like
a logical tool to use since it is mature and has a MIT license which would
allow it to be incorporated into NiFi.
“GetHTMLElement” should use the CSS selector-syntax
(http://www.w3schools.com/cssref/css_selectors.asp) built into Jsoup to extract
0-N HTML elements from the original HTML input. This processor should support a
delimited string of selectors allowing the user to build compound HTML element
output. Each HTML element (or compound element result) extracted will create a
new Flowfile where the element will be in either the Flowfile content or an
attribute depending on the user configuration.
“ModifyHTMLElement” should provide the ability to modify the original input
HTML and overwrite any existing element values. The HTML element that will be
modified can be selected by using the CSS selector-syntax
“PutHTMLElement” should provide the ability to put a new HTML element anywhere
in the original input HTML using CSS selector-syntax to indicate the position
that the new HTML element should be placed.
There seems to be a potential for adding more processors but this seems like a
good start. Since there is a dependency on Jsoup and a potential for more
processors to come I think it makes sense to add this logic as its own nar
bundle but I could be wrong.
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