Initial project's source code check-in.

WebsitePanel.Installer/Sources/WebsitePanel.Setup/Common/WmiHelper.cs

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+// Copyright (c) 2011, Outercurve Foundation.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+// - Redistributions of source code must  retain  the  above copyright notice, this
+//   list of conditions and the following disclaimer.
+//
+// - Redistributions in binary form  must  reproduce the  above  copyright  notice,
+//   this list of conditions  and  the  following  disclaimer in  the documentation
+//   and/or other materials provided with the distribution.
+//
+// - Neither  the  name  of  the  Outercurve Foundation  nor   the   names  of  its
+//   contributors may be used to endorse or  promote  products  derived  from  this
+//   software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,  BUT  NOT  LIMITED TO, THE IMPLIED
+// WARRANTIES  OF  MERCHANTABILITY   AND  FITNESS  FOR  A  PARTICULAR  PURPOSE  ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+// ANY DIRECT, INDIRECT, INCIDENTAL,  SPECIAL,  EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO,  PROCUREMENT  OF  SUBSTITUTE  GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)  HOWEVER  CAUSED AND ON
+// ANY  THEORY  OF  LIABILITY,  WHETHER  IN  CONTRACT,  STRICT  LIABILITY,  OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE)  ARISING  IN  ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+using System.Management;
+
+namespace WebsitePanel.Setup
+{
+	/// <summary>
+	/// Wmi helper class.
+	/// </summary>
+	internal sealed class WmiHelper
+	{
+		// namespace
+		private string ns = null;
+        // scope
+		private ManagementScope scope = null;
+
+		/// <summary>
+		/// Initializes a new instance of the class.
+		/// </summary>
+		/// <param name="ns">Namespace.</param>
+		public WmiHelper(string ns)
+		{
+			this.ns = ns;
+		}
+
+		/// <summary>
+		/// Executes specified query.
+		/// </summary>
+		/// <param name="query">Query to execute.</param>
+		/// <returns>Resulting collection.</returns>
+		internal ManagementObjectCollection ExecuteQuery(string query)
+		{
+			ObjectQuery objectQuery = new ObjectQuery(query);
+
+			ManagementObjectSearcher searcher =
+				new ManagementObjectSearcher(WmiScope, objectQuery);
+			return searcher.Get();
+		}
+
+		/// <summary>
+		/// Retreives ManagementClass class initialized to the given WMI path.
+		/// </summary>
+		/// <param name="path">A ManagementPath specifying which WMI class to bind to.</param>
+		/// <returns>Instance of the ManagementClass class.</returns>
+		internal ManagementClass GetClass(string path)
+		{
+			return new ManagementClass(WmiScope, new ManagementPath(path), null);
+		}
+
+		/// <summary>
+		/// Retreives ManagementObject class bound to the specified WMI path.
+		/// </summary>
+		/// <param name="path">A ManagementPath that contains a path to a WMI object.</param>
+		/// <returns>Instance of the ManagementObject class.</returns>
+		internal ManagementObject GetObject(string path)
+		{
+			return new ManagementObject(WmiScope, new ManagementPath(path), null);
+		}
+
+		public ManagementScope WmiScope
+		{
+			get
+			{
+				if(scope == null)
+				{
+					ManagementPath path = new ManagementPath(ns);
+					scope = new ManagementScope(path, new ConnectionOptions());
+					scope.Connect();
+				}
+				return scope;
+			}
+		}
+	}
+}