Functions/GenXdev.Helpers/ConvertTo-HashTable.cs
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// ################################################################################
// Part of PowerShell module : GenXdev.Helpers // Original cmdlet filename : ConvertTo-HashTable.cs // Original author : René Vaessen / GenXdev // Version : 1.302.2025 // ################################################################################ // Copyright (c) René Vaessen / GenXdev // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // ################################################################################ using System; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Management.Automation; namespace GenXdev.Helpers { /// <summary> /// <para type="synopsis"> /// Converts a PSCustomObject to a HashTable recursively. /// </para> /// /// <para type="description"> /// This function converts a PSCustomObject and all its nested PSCustomObject /// properties into HashTables. It handles arrays and other collection types by /// processing each element recursively. /// </para> /// /// <para type="description"> /// PARAMETERS /// </para> /// /// <para type="description"> /// -InputObject <System.Object[]><br/> /// The PSCustomObject to convert into a HashTable. Accepts pipeline input.<br/> /// - <b>Position</b>: 0<br/> /// - <b>Mandatory</b>: true<br/> /// </para> /// /// <example> /// <para>Convert a PSCustomObject to a HashTable</para> /// <para>This example demonstrates how to convert a PSCustomObject with nested properties into a HashTable.</para> /// <code> /// $object = [PSCustomObject]@{ /// Name = "John" /// Age = 30 /// Details = [PSCustomObject]@{ /// City = "New York" /// } /// } /// $hashTable = ConvertTo-HashTable -InputObject $object /// </code> /// </example> /// </summary> [Cmdlet(VerbsData.ConvertTo, "HashTable")] [OutputType(typeof(Hashtable), typeof(System.Collections.IEnumerable), typeof(System.ValueType), typeof(string))] public class ConvertToHashTableCommand : PSGenXdevCmdlet { /// <summary> /// The PSCustomObject to convert into a HashTable /// </summary> [Parameter( Mandatory = true, Position = 0, ValueFromPipeline = true, HelpMessage = "The PSCustomObject to convert into a HashTable" )] [ValidateNotNull] public object[] InputObject { get; set; } /// <summary> /// Begin processing - initialization logic /// </summary> protected override void BeginProcessing() { WriteVerbose("Starting PSCustomObject to HashTable conversion"); } /// <summary> /// Process record - main cmdlet logic /// </summary> protected override void ProcessRecord() { foreach (var item in InputObject) { var result = ConvertToHashTable(item); WriteObject(result); } } /// <summary> /// End processing - cleanup logic /// </summary> protected override void EndProcessing() { WriteVerbose("Completed HashTable conversion"); } private object ConvertToHashTable(object input) { // return empty hashtable if input is null if (input == null) { return new Hashtable(StringComparer.OrdinalIgnoreCase); } // handle simple value types directly if (input is System.ValueType || input is string) { return input; } // handle PSCustomObject var psObj = input as PSObject; if (psObj != null) { var resultTable = new Dictionary<string, object>(); // process each property of the current object foreach (var property in psObj.Properties) { var value = property.Value; // handle nested PSCustomObject properties if (value is PSObject) { value = ConvertToHashTable(value); } // handle collection properties else if (value is System.Collections.IEnumerable && !(value is string)) { var list = new List<object>(); foreach (var element in (System.Collections.IEnumerable)value) { if (element is PSObject) { list.Add(ConvertToHashTable(element)); } else { list.Add(element); } } value = list.ToArray(); } // handle simple value properties else { // value remains as is } resultTable[property.Name] = value; } // create final hashtable with sorted keys var finalResultTable = new Hashtable(StringComparer.OrdinalIgnoreCase); foreach (var key in resultTable.Keys.OrderBy(k => k, StringComparer.Ordinal)) { finalResultTable[key] = resultTable[key]; } return finalResultTable; } // handle collection types else if (input is System.Collections.IEnumerable && !(input is string)) { var list = new List<object>(); foreach (var element in (System.Collections.IEnumerable)input) { list.Add(ConvertToHashTable(element)); } return list.ToArray(); } // handle other types else { return input; } } } } |