Double for-loop to process data? - csv

Question

I have a question around processing some data which I am pulling from VMWARE vROPS 6.X.
Basically I wrote a script to pull metric data from the suite API. I almost have the format I want but i need to split the Metric and Timestamp column one step further.
Basically I built a foreach loop and then nested another inside but I was not getting the metrics and timestamps in the correct sequence (so I removed it from the code below).
Current output:
"resourceId","Timestamp","METRIC","value"
"ef951a38-3063-477d-af32-baa6d2744357","1466085599999 1466171999999","cpu:1|costop_summation","4.6296298710836307E-4 0.0 4.5836298710836307E-4 0.0"
"ef951a38-3063-477d-af32-baa6d2744357","1466085599999 1466171999999","mem|usage_average","12.678446789582571 15.390000343322754"
Desired output:
"resourceId","Timestamp","METRIC","value"
"ef951a38-3063-477d-af32-baa6d2744357","1466085599999","cpu:1|costop_summation","4.6296298710836307E-4 0.0"
"ef951a38-3063-477d-af32-baa6d2744357","1466171999999","cpu:1|costop_summation","4.5836298710836307E-4 0.0"
"ef951a38-3063-477d-af32-baa6d2744357","1466085599999","mem|usage_average","12.678446789582571"
"ef951a38-3063-477d-af32-baa6d2744357","1466171999999","mem|usage_average","15.390000343322754"
My Code:
#Call vROPS SUITE-API with Invoke-Rest
#Take all certs.
Add-Type #"
using System.Net;
using System.Security.Cryptography.X509Certificates;
public class TrustAllCertsPolicy : ICertificatePolicy {
public bool CheckValidationResult(
ServicePoint srvPoint, X509Certificate certificate,
WebRequest request, int certificateProblem) {
return true;
}
}
"#
[System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy
#date
[DateTime]$StartDate = (Get-date).adddays(-5)
[DateTime]$EndDate = (Get-date)
$StartDateEpoc = Get-Date -Date $StartDate -UFormat %s
$EndDateEpoc = Get-Date -Date $EndDate -UFormat %s
#Variables
$username = "admin"
$password = "password"
$secPw = ConvertTo-SecureString $password -AsPlainText -Force
$cred = New-Object PSCredential -ArgumentList $username,$secPw
$ContentType = "application/xml;charset=utf-8"
$header = New-Object "System.Collections.Generic.Dictionary[[String,[String]]"
$header.Add("Accept", 'application/xml')
#intervalType=
$SECONDS = 'SECONDS'
$MINUTES = 'MINUTES'
$HOURS = 'HOURS'
$DAYS = 'DAYS'
#rollUpType=
$AVG = 'AVG'
$MAX = 'MAX'
$SUM = 'SUM'
$MIN = 'MIN'
$COUNT = 'COUNT'
Invoke-RestMethod -Method GET -uri "https://192.168.0.125/suite-api/api/resources/stats?resourceId=ef951a38-3063-477d-af32-baa6d2744357&resourceId=1ef459e5-789e-446b-9852-3dc92c43e74a&statKey=cpu|usage_average&rollUpType=$AVG&intervalType=$DAYS" -Credential $cred -ContentType $ContentType -Headers $header -OutFile d:\quickcheck.xml
[xml]$Data = Get-Content 'D:\quickcheck.XML'
$report = #()
$resources = $Data.'stats-of-resources'
$UUIDS = $Resource.'resourceId'
foreach ($Resource in $Resources.'stats-of-resource') {
foreach ($node in $Resource.'stat-list'.stat)
{
#Collection Date, not run time
$MetricName = $node.statKey.Key
$Values = #($node.data -replace '( \d\.\d) ',"`$1`n" -split "`n")
$Timestamps = #($node.timestamps -split ' ')
for ($i=0; $i -lt $Values.Count -and $i -lt $Timestamps.Count; $i++) {
$report += New-Object PSObject -Property #{
METRIC = $MetricName
resourceId = $Resource.'resourceId'
Timestamp = $Timestamps[$i]
value = $Values[$i]
}
}
}
$report | Export-Csv D:\reprop.csv -NoTypeInformation

Answer 1

Split $Timestamps at spaces and $Values at every second space, and create an object for each resulting pair of fragments, e.g. like this:
$Values = #($Values -split ' ')
$Timestamps = #($Timestamps -split ' ')
for ($i=0; $i -lt $Values.Count -and $i -lt $Timestamps.Count; $i++) {
$report += New-Object PSObject -Property #{
METRIC = $MetricName
resourceId = $Resource.'resourceId'
Timestamp = $Timestamps[$i]
value = $Values[$i]
}
}