What is the recommended way to make a deep copy of a request in KP?

[joffinjoy]

This is a request to UpdateHierarchyManager.updateHierarchy(hierarchyRequest).

hierarchyRequest:

Request[context = {
graph_id = domain,
schemaName = questionset,
version = 1.0,
objectType = QuestionSet
}, requestValueObjects = {
nodesModified = {
596 d944a - f2d3 - 4 a12 - 96 cb - 1e95796 d2820 = {
setDefaultValue = false,
metadata = {
instructions = null,
code = Q1,
channel = {
{
channel_id
}
},
description = Q1,
responseDeclaration = null,
language = [English],
mimeType = application / vnd.sunbird.question,
media = null,
body = This is Body 1,
editorState = null,
objectType = Question,
interactions = null,
primaryCategory = Slider,
contentDisposition = inline,
contentEncoding = gzip,
showSolutions = No,
allowAnonymousAccess = Yes,
lastStatusChangedOn = 2022 - 03 - 29 T15: 37: 42.837 + 0530,
visibility = Parent,
showTimer = No,
solutions = null,
hints = null,
languageCode = [en],
version = 1,
showFeedback = No,
license = CC BY 4.0,
answer = This is Answer 1,
name = Q1
},
root = false,
isNew = true,
objectType = Question
},
ab33aa8e - 04 f3 - 4 aa0 - a23b - faa37f5724fc = {
setDefaultValue = false,
metadata = {
code = S1,
allowSkip = Yes,
containsUserData = No,
channel = {
{
channel_id
}
},
description = Section 1,
language = [English],
mimeType = application / vnd.sunbird.questionset,
showHints = No,
objectType = QuestionSet,
primaryCategory = Observation,
contentDisposition = inline,
contentEncoding = gzip,
generateDIALCodes = No,
showSolutions = No,
allowAnonymousAccess = Yes,
lastStatusChangedOn = 2022 - 03 - 29 T15: 37: 42.872 + 0530,
requiresSubmit = No,
visibility = Parent,
showTimer = No,
setType = materialised,
languageCode = [en],
version = 1,
showFeedback = No,
license = CC BY 4.0,
name = S1,
navigationMode = non - linear,
allowBranching = Yes,
shuffle = true
},
root = false,
isNew = true,
objectType = QuestionSet
}
},
hierarchy = {
do_11350687937866137611 = {
children = [ab33aa8e - 04 f3 - 4 aa0 - a23b - faa37f5724fc],
primaryCategory = Observation,
root = true
},
ab33aa8e - 04 f3 - 4 aa0 - a23b - faa37f5724fc = {
children = [596 d944a - f2d3 - 4 a12 - 96 cb - 1e95796 d2820, do_1135049090076835841173],
primaryCategory = Observation,
root = false
}
}
}]
Ignore any inconsistencies in the request itself. It's poorly parsed for presentation.

I want to a make a deep copy of this request before updateHierarchy() call is made. It has to be a deep copy because updateHierarchy() modifies the request during its processing and I no longer can use the original request or a shallow copy once updateHierarchy has finished its execution. What is the recommended way to do this?

Note: The goal is to use the same request with all nodes in nodesModified set as isNew=false, and replace all identifiers with appropriate do_ids and re-run the updateHierarchy().
@pallakartheekreddy @krgauraw

[krgauraw]

@joffinjoy In order to make a deep copy of Sunbird Request, you can serialize it and then deserialize back as a Request class object. For serialization and deserialization, you can use exiting files like JsonUtils or ScalaJsonUtils.

cc: @pallakartheekreddy

[Krishnaj20]

@krgauraw - thanks for responding to this question. Can you add this question to the component specific FAQ section in the inQuiry microsite as well? Thanks

[joffinjoy]

@krgauraw Thanks Gauraw... It worked.

Posting for posterity:

import org.sunbird.common.{JsonUtils, Platform}
val newUpdateRequest = JsonUtils.deserialize(ScalaJsonUtils.serialize(hierarchyRequest), classOf[Request])

[pramodkvarma]

@Krishnaj20 you can update FAQ yourself right? I suggest you also do these doc/faq fixes (non code/tech portions) etc and become a contributor yourself (apologies if you are already doing non tech doc updates yourself).

[Krishnaj20]

Created a new FAQ section for question/question set services and added this question.

[pramodkvarma]

@Krishnaj20 Can you please share public link? This link needs permission. Thanks.

[Krishnaj20]

Apologies - posted the gitbook link. Here is the public link.

[pramodkvarma]

Thanks @Krishnaj20. Good start. But I suggest two ideas:

1. Instead of just one advanced FAQ item, please add others and make it reasonably useful.
2. Instead of having entire long answer, FAQ answer should be just 2-3 sentences with a URL to details. In this case answer within FAQ can point to the discussion URL where it is answered.

[Krishnaj20]

thanks @pramodkvarma. I've edited the FAQ answer to be brief with a link to this discussion thread for additional details. I'll work with @krgauraw & @pallakartheekreddy to expand the FAQs.