1 files changed, 109 insertions, 0 deletions

diff --git a/src/WixToolset.Data.WindowsInstaller/SubStorage.cs b/src/WixToolset.Data.WindowsInstaller/SubStorage.cs
new file mode 100644
index 00000000..e136bfe9
--- /dev/null
+++ b/src/WixToolset.Data.WindowsInstaller/SubStorage.cs
@@ -0,0 +1,109 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset.Data
+{
+    using System.Xml;
+
+    /// <summary>
+    /// Substorage inside an output.
+    /// </summary>
+    public sealed class SubStorage
+    {
+        /// <summary>
+        /// Instantiate a new substorage.
+        /// </summary>
+        /// <param name="name">The substorage name.</param>
+        /// <param name="data">The substorage data.</param>
+        public SubStorage(string name, Output data)
+        {
+            this.Name = name;
+            this.Data = data;
+        }
+
+        /// <summary>
+        /// Gets the substorage name.
+        /// </summary>
+        /// <value>The substorage name.</value>
+        public string Name { get; private set; }
+
+        /// <summary>
+        /// Gets the substorage data.
+        /// </summary>
+        /// <value>The substorage data.</value>
+        public Output Data { get; private set; }
+
+        /// <summary>
+        /// Creates a SubStorage from the XmlReader.
+        /// </summary>
+        /// <param name="reader">Reader to get data from.</param>
+        /// <returns>New SubStorage object.</returns>
+        internal static SubStorage Read(XmlReader reader)
+        {
+            if (!reader.LocalName.Equals("subStorage" == reader.LocalName))
+            {
+                throw new XmlException();
+            }
+
+            Output data = null;
+            bool empty = reader.IsEmptyElement;
+            string name = null;
+
+            while (reader.MoveToNextAttribute())
+            {
+                switch (reader.LocalName)
+                {
+                    case "name":
+                        name = reader.Value;
+                        break;
+                }
+            }
+
+            if (!empty)
+            {
+                bool done = false;
+
+                while (!done && reader.Read())
+                {
+                    switch (reader.NodeType)
+                    {
+                        case XmlNodeType.Element:
+                            switch (reader.LocalName)
+                            {
+                                case "wixOutput":
+                                    data = Output.Read(reader, true);
+                                    break;
+                                default:
+                                    throw new XmlException();
+                            }
+                            break;
+                        case XmlNodeType.EndElement:
+                            done = true;
+                            break;
+                    }
+                }
+
+                if (!done)
+                {
+                    throw new XmlException();
+                }
+            }
+
+            return new SubStorage(name, data);
+        }
+
+        /// <summary>
+        /// Persists a SubStorage in an XML format.
+        /// </summary>
+        /// <param name="writer">XmlWriter where the SubStorage should persist itself as XML.</param>
+        internal void Write(XmlWriter writer)
+        {
+            writer.WriteStartElement("subStorage", Output.XmlNamespaceUri);
+
+            writer.WriteAttributeString("name", this.Name);
+
+            this.Data.Write(writer);
+
+            writer.WriteEndElement();
+        }
+    }
+}