Exploring NiFi: Techniques for targeting specific DOM elements using child element values

I need to retrieve an ID based on a specific logic in Nifi using Angular/jQuery. In this scenario, there may be multiple IDs with the same name due to the nature of Nifi.

Logic Outline

#connection-configuration-tabs-content
    #connection-settings-tab-content
        .settings-left
            .setting(2nd child)
                .setting-field
                    #connection-id (**GRAB**)
    #connection-details-tab-content
            #processor-source-name[title="ARCH_convertCSVToAvro"] (**if exist in this location**)
            #processor-destination-name[title="ARCH_convertAvroToORC"] (**and if exist in this location**)

The goal is to obtain the "connection-id" by referencing the locators of #processor-source-name[title="ARCH_convertCSVToAvro"] and #processor-destination-name[title="ARCH_convertAvroToORC"]. Although the connection-id varies for different processor names, I specifically want to target it based on the source/destination names.

How can I extract #connection-id under these conditions? Is there a way to achieve this when using Selenium in Java?

Purpose: To uniquely capture the "connnection" id in Nifi without relying on unique names from previous or subsequent processors (which are distinct in the workflow).

javahtmlcssseleniumapache-nifi

Answer №1

Consider using the following xpath:

//*[@id='connection-configuration-tabs-content' and (.//*[@id='processor-source-name' and @title='ARCH_convertCSVToAvro'] or .//*[@id='processor-destination-name' and @title='ARCH_convertAvroToORC'])]//*[@id='connection-id']

Answer №2

Is it possible to employ Selenium's WebDriver API in order to dynamically choose an element according to specific criteria? Additionally, one can make a request to NiFi's REST API for fetching the connection ID value associated with different connections on a processor.

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