From a71cf2f949f5db008faf845f321d455ce1829f18 Mon Sep 17 00:00:00 2001
From: Karl-Wilfried Zimmer <zimmerk4@students.uni-marburg.de>
Date: Thu, 8 Feb 2024 22:54:01 +0100
Subject: [PATCH] implemented try catch blocks on adding to hashmap to allow
 graceful handling of exceptions

---
 Extractor.ps1 | 69 +++++++++++++++++++++++++++++++++------------------
 1 file changed, 45 insertions(+), 24 deletions(-)

diff --git a/Extractor.ps1 b/Extractor.ps1
index b1b298a..e8ce673 100644
--- a/Extractor.ps1
+++ b/Extractor.ps1
@@ -37,32 +37,53 @@ function ProduceHashMap {
         $Elements
     )
     $HashTable =@{}
-foreach ($elem in $Elements){
-    $indexOfFirst = $elem.IndexOf(" ")
-    if($indexOfFirst -le 0){
-        continue
-    }
-    $date = $elem.SubString(0,$elem.IndexOf(" ",($indexOfFirst + 1)))
-    $timeStamp = ConvertDate($date)
-    $rest = $elem.Substring($elem.IndexOf(" ",($indexOfFirst + 1))+1)
-    $vmName = GetVMName($rest)
-    $backUpState = DeterminState($rest)
-
-    if($HashTable.ContainsKey($vmName)){
-        $array = $HashTable[$vmName]
-        $array += New-Object psobject -Property @{
-            state = $backUpState
-            ts = $timeStamp
+    foreach ($elem in $Elements){
+        $indexOfFirst = $elem.IndexOf(" ")
+        if($indexOfFirst -le 0){
+            continue
         }
-        $HashTable[$vmName]=$array
-    } else{
-        $HashTable += @{$vmName=@(New-Object psobject -Property @{
-            state = $backUpState
-            ts = $timeStamp
-        })}
+        $date = $elem.SubString(0,$elem.IndexOf(" ",($indexOfFirst + 1)))
+        $rest = $elem.Substring($elem.IndexOf(" ",($indexOfFirst + 1))+1)
+        $vmName = GetVMName($rest)
+        $backUpState = DeterminState($rest)
+        $timeStamp
+        if($HashTable.ContainsKey($vmName)){
+            $array = $HashTable[$vmName]
+            try {
+                $timeStamp = ConvertDate($date)
+                $array += New-Object psobject -Property @{
+                    state = $backUpState
+                    ts = $timeStamp
+                }
+            }
+            catch {
+                foreach ($i in (($array.Count-1)..0)){
+                    Write-Host $array[$i]
+                    if ($array[$i]["state"] -eq 'Started') {
+                        Write-Host "found started"
+                        $timeStamp = $array[$i]['ts']
+                    }
+                }
+                $array += New-Object psobject -Property @{
+                    state = $backUpState
+                    ts = $timeStamp
+                }
+            }
+            $HashTable[$vmName]=$array
+        } else {
+            try {
+                $timeStamp = ConvertDate($date)
+                $HashTable += @{$vmName=@(New-Object psobject -Property @{
+                    state = $backUpState
+                    ts = $timeStamp
+                    })}
+            }
+            catch {
+                <#Do nothing as key is empty and failed state#>
+            }
+        }  
     }
-}
-$HashTable
+    return $HashTable
 }
 
 function getElems {