Can we use string manipulation functions like below in JoltTransformJSON
${BIG:padRight(5, '#')}
Link:
https://jolt-demo.appspot.com/#modify-stringFunctions
Expected Output: BIG##
Like we use
"small_toUpper": "=toUpper(#(1,small))",
"BIG_toLower": "=toLower(#(1,BIG))",
I am trying but it's not giving any error, but not giving the desired result as well. What would be other alternative for this.
Input JSON:
{
"x": [
3,
2,
1,
"go"
],
"small": "small",
"BIG": "BIG",
"people": [
{
"firstName": "Bob",
"lastName": "Smith",
"address": {
"state": null
}
},
{
"firstName": "Sterling",
"lastName": "Archer"
}
]
}
Spec:
[
{
"operation": "modify-default-beta",
"spec": {
"y": "=join(',',#(1,x))",
"z": "=join(' ',#(1,x))",
"small_toUpper": "=toUpper(#(1,small))",
"BIG_toLower": "=toLower(#(1,BIG))",
"BIG_padding": "=padRight(#(5,BIG))"
}
}
]
You can use rightPad function along with modify-xXx-beta (xXx:default or overwrite) transformation such as
[
{
"operation": "modify-default-beta",
"spec": {
"BIG_padding": "=rightPad(#(1,BIG),5,'#')"
}
}
]
Related
Am new to nifi(1.14) and using JOLTTransform processor to transfer the input json (flatten) to nested json. I could not able to fix with the JOLT Schema. kindly help me on this.
The input JSON is :
[
{
"executionTime": "2244",
"processorId": "3ef03f9c-b42c-4c4e-9d5f-d14878bb2c84",
"filename": "Trading",
"processStartTime": "2021-07-26 16:31:19",
"processSQL": "TradingDetails.sql",
"executionFetchTime": "2049",
"sourceCountValue": "5076",
"startTime": "1627297279651",
"processGroupName": "Trading"
},
{
"ProcessEndTime": "2021-07-26 16:31:29",
"completedTime": "1627297289412",
"processDuration": "0",
"destCountValue": "5076",
"tableName": "TRADINGDETAILS"
},
{
"ProcessEndTime": "2021-07-26 16:31:29",
"completedTime": "1627297289412",
"processDuration": "0",
"destCountValue": "5076",
"tableName": "CUSTTRADINGDETAILS"
}
]
and the expected JSON output is
{
"Trading": {
"Source": {
"executionTime": "2244",
"processorId": "3ef03f9c-b42c-4c4e-9d5f-d14878bb2c84",
"filename": "Trading",
"processStartTime": "2021-07-26 16:31:19",
"processSQL": "TradingDetails.sql",
"executionFetchTime": "2049",
"sourceCountValue": "5076",
"startTime": "1627297279651",
"processGroupName": "Trading"
},
"Destination": {
"TRADINGDETAILS": {
"ProcessEndTime": "2021-07-26 16:31:29",
"completedTime": "1627297289412",
"processDuration": "10",
"destCountValue": "5076",
"tableName": "TRADINGDETAILS"
},
"CUSTTRADINGDETAILS": {
"ProcessEndTime": "2021-07-26 16:31:29",
"completedTime": "1627297289412",
"processDuration": "10",
"destCountValue": "5076",
"tableName": "CUSTTRADINGDETAILS"
}
}
}
}
Thanks in Advance.
You can use successive shift transformations; enumarate the keys of the objects within the first one, and then rename them while nesting each under the related keys such as
[
{
"operation": "shift",
"spec": {
"*": "&"
}
},
{
"operation": "shift",
"spec": {
"0": "Trading.Source",
"*": "Trading.Destination.#(0,tableName)"
}
}
]
My NiFi application receives two kinda different types of JSON's.
First of them looks like:
[
{
"campaign": {
"resourceName": "customers/8952771329/campaigns/11381694617",
"status": "ENABLED",
"name": "Saint_Spring_Active Minerals_oct-nov_2020_trueview_skip_5766500views",
"id": "11381694617"
},
"metrics": {
"interactionEventTypes": [
"VIDEO_VIEW"
],
"clicks": "6",
"videoQuartileP100Rate": 0.44493171079034244,
"videoQuartileP25Rate": 0.9747718298919024,
"videoQuartileP50Rate": 0.7339309987701469,
"videoQuartileP75Rate": 0.5337562301767105,
"videoViewRate": 0.4471109114825628,
"videoViews": "27872",
"viewThroughConversions": "0",
"contentBudgetLostImpressionShare": 0.0000013066088274492382,
"contentImpressionShare": 0.0999,
"contentRankLostImpressionShare": 0.9001,
"conversionsValue": 0,
"conversions": 0,
"costMicros": "9338700950",
"ctr": 0.00009624947864865732,
"currentModelAttributedConversions": 0,
"currentModelAttributedConversionsValue": 0,
"engagementRate": 0,
"engagements": "0",
},
"segments": {
"device": "CONNECTED_TV",
"date": "2020-12-20"
}
}
]
And second:
[
{
"adGroup": {
"resourceName": "customers/5404177717/adGroups/110501283582",
"campaign": "customers/5404177717/campaigns/11628802542"
},
"metrics": {
"interactionEventTypes": [
"CLICK"
],
"clicks": "1",
"averageCpm": 95497428.02172929,
"gmailForwards": "0",
"gmailSaves": "0",
"gmailSecondaryClicks": "0",
"impressions": "4418",
"interactionRate": 0.00022634676324128565,
"interactions": "1"
},
"adGroupAd": {
"resourceName": "customers/5404177717/adGroupAds/110501283582~480227690139",
"status": "ENABLED",
"ad": {
"resourceName": "customers/5404177717/ads/480227690139",
"id": "480227690139",
"name": "20 sec perek"
},
"adGroup": "customers/5404177717/adGroups/110501283582"
},
"segments": {
"device": "DESKTOP",
"date": "2020-11-21"
}
}
]
I already have 2 tables in my database to save this data. I have an attribute table.name just to not create same block where's only table name is different.
My next block is FlattenJson. After this i'm using ReplaceText with search value (replacement value is empty string): (customers\\\/${client.customer.id}\\\/campaigns\\\/|customers\\\/${client.customer.id}\\\/adGroups\\\/).
Why this? From this line: "adGroup": "customers/5404177717/adGroups/110501283582" i only need last value 110501283582 as ad_group_id. And from this line: "campaign": "customers/5404177717/campaigns/11628802542" i only need 11628802542. ${client.customer.id} can be different, so i'm using EL features.
Also i need to change json value name adGroup to ad.group.id, for this i'm also using ReplaceText.
Can i do it faster without two ReplaceText processors?
Look at the following processors...I think using them can be an alternative:
JoltTransformJSON:
https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.5.0/org.apache.nifi.processors.standard.JoltTransformJSON/
UpdateRecord:
https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.5.0/org.apache.nifi.processors.standard.UpdateRecord/index.html
I want to copy all they keys in the json except one which i want to transform.
ex.
Input JSON
{
"ts": "20200420121222",
"name": "broker",
"city": "queensland",
"age": 21,
"gender": "male"
"characteristics": {
"Card Id": "63247354",
"Termination Plan": "paid"
}
}
Output JSON
{
"ts": "20200420121222",
"name": "broker",
"city": "queensland",
"age": 21,
"gender": "male"
"characteristics": {
"card_id": "63247354", // change here
"termination_plan": "paid" // change here
}
}
Is there any better way via which i can just change the following above keys and copy the rest
You can use the "*": "&" construct to include all other fields that have not yet been matched:
[
{
"operation": "shift",
"spec": {
"characteristics": {
"Card Id": "characteristics.card_id",
"Termination Plan": "characteristics.termination_plan"
},
"*": "&"
}
}
]
I have Json array with each of its object having dynamic attributes. I have to merge all the object into one Json object in nifi with common attribute's value concatenated and other attributes as it is.
I have already tried following spec, and it is giving common attributes as array list. But I want that common attribute's value to be concatenated and I don't know how to do that. Any suggestion would be really helpful. Thanks in advance.
[
{
"operation": "shift",
"spec": {
"*": {
"*": "&"
}
}
}
]
The input is like( NOTE: The attributes are dynamic so not sure always going to have these attributes)
[
{
"firstName": "Sam1",
"lastName": "Achom1",
"place": "Silchar1"
},
{
"firstName": "Saya2",
"lastName": "Singh2",
"place": "Macherial2",
"Second1stAttribute": "SomeValue"
},
{
"firstName": "Sam3",
"lastName": "Achom3",
"place": "Silchar3",
"Third2ndAttribute": "SomeValue2"
}
]
The output I am getting with before mentioned spec
{
"firstName" : [ "Sam1", "Saya2", "Sam3" ],
"lastName" : [ "Achom1", "Singh2", "Achom3" ],
"place" : [ "Silchar1", "Macherial2", "Silchar3" ],
"Second1stAttribute" : "SomeValue",
"Third2ndAttribute" : "SomeValue2"
}
And Expecting the output as
{ "firstName" : "Sam1 Saya2 Sam3",
"lastName" : "Achom1 Singh2 Achom3",
"place" : "Silchar1 Mancherial2 Silchar3",
"Second1stAttribute" : "SomeValue",
"Third2ndAttribute" : "SomeValue2"
}
You can "join" the items from your arrays. This spec will do the trick:
[
{
"operation": "shift",
"spec": {
"*": {
"*": "&"
}
}
},
{
"operation": "modify-overwrite-beta",
"spec": {
"*": "=join(' ',#(1,&))"
}
}
]
I'm new with Jolt and I need to have two field having different name but same value coming from the input JSON.
INPUT:
{
"date": 15746555589,
"sensorid": "23r098hd20c8jd02hd0h02300000000000"
}
DESIDERED OUTPUT:
{
"lastseen": 15746555589,
"firstseen": 15746555589,
"sensorid": "23r098hd20c8jd02hd0h02300000000000"
}
This spec should work:
[
{
"operation": "shift",
"spec": {
"date": "lastseen",
"#(1,date)": "firstseen",
"*": "&"
}
}
]