Loop Operations

This section covers how looping functionality can be used in RDA pipelines under AIOps Studio

Looping functionality will work on the datasets which were created by loading files into RDA and/or via logical dataset creation from other datasets.

1. Timed loop

Step 1: Create an empty timed_loop_example_1 using AIOps studio as shown in the below screenshot

Empty pipeline

Step 2: Add the following pipeline code/commands into the above-created pipeline as shown in the below screenshot:

You can copy the below code into your pipeline and execute that in your environment.

###### Pipeline for timed loop: Sleeps 'interval' seconds after each iteration. ###### if the max_iterations is specified, loop will stop after max_iterations reached ###### each iteration as variable loop_index set (starts at 0 and increments by 1) @c:timed-loop interval = '3' & max_iterations = 10 --> @dm:empty --> @dm:addrow message = "This is row number ${loop_index}" --> @dm:save name = "temp-df-${loop_index}" --> @c:new-block --> @dm:concat names = "temp-df-.*"

Pipeline code added for timed loop example

Step 3: Click verify button to verify the pipeline. RDA will verify the pipeline without any errors (as shown below)

Loop pipeline code is verified for syntax errors as shown in above screenshot

Step 4: Click execute button to execute the pipeline. RDA will execute the pipeline without any errors (as shown below)

Screenshot-1

RDA executes a looping-based pipeline and prints the loop details as shown in the above screenshot. During each iteration/loop, the pipeline screen updates the iteration number as shown in the above screenshot.

Screenshot-2

After iterating through max_iterations, pipeline data is stored in output and exits.

Step 5: Verify the data after the timed loop operation is completed as shown in the below screenshot (data is printed for 10 iterations in this example).

Output is printed after max_iterations as shown in the above screenshot.

2. Count loop

Step 1: Create an empty count_loop_example_1 using AIOps studio as shown in the below screenshot.

Empty pipeline

Step 2: Add the following pipeline code/commands into the above-created pipeline as shown in the below screenshot:

You can copy the below code into your pipeline and execute that in your environment.

###### Pipeline for count loop: starts with 'start' number and increment by using ###### 'increment' until the value is greater then equal to 'end' variable ###### value for the each iteration is set as 'loop_index' @c:count-loop start = 0 & end = 10 & increment = 1 --> @dm:empty --> @dm:addrow message = "This is row number ${loop_index}" --> @dm:save name = "temp-df-${loop_index}" --> @c:new-block --> @dm:concat names = "temp-df-.*"

Pipeline code is added to loop count pipeline example

Step 3: Click verify button to verify the pipeline. RDA will verify the pipeline without any errors (as shown below)

Loop pipeline code is verified for syntax errors as shown in above screenshot

Step 4: Click execute button to execute the pipeline. RDA will execute the pipeline without any errors (as shown below)

Screenshot-1

RDA executes a loop-count-based pipeline and prints the loop details as shown in the above screenshot. During each iteration/loop, the pipeline screen updates the iteration number as shown in the above screenshot.

After iterating till 'end', pipeline data is stored in output and exits.

Output is printed after end of all iterations as shown in the above screenshot.