--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Pml/PmlBuilder.cs	Tue Sep 11 16:28:53 2012 +0200
@@ -0,0 +1,129 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace UCIS.Pml {
+	public class PmlBuilder {
+		private IPmlWriter pWriter;
+		private Stack<PmlElement> pStack = new Stack<PmlElement>();
+
+		public PmlBuilder(IPmlWriter Writer) {
+			pWriter = Writer;
+		}
+		public PmlBuilder() {
+			pWriter = null;
+		}
+
+		public IPmlWriter BaseWriter {
+			get { return pWriter; }
+			set { pWriter = value; }
+		}
+
+		private PmlElement AddChildElement(PmlElement Element, bool AddToStack) {
+			return AddChildElement(Element, AddToStack, null);
+		}
+		private PmlElement AddChildElement(PmlElement Element, bool AddToStack, string ChildName) {
+			PmlElement Parent;
+			if (pStack.Count > 0) {
+				Parent = pStack.Peek();
+				if (Parent is PmlDictionary) {
+					if (ChildName == null) throw new ArgumentNullException("ChildName", "Dictionary items need a Name");
+					((PmlDictionary)Parent).Add(ChildName, Element);
+				} else if (Parent is PmlCollection) {
+					if (ChildName != null) throw new ArgumentOutOfRangeException("ChildName", "Can not add named element to a Collection");
+					((PmlCollection)Parent).Add(Element);
+				} else {
+					throw new InvalidOperationException("Invalid Element type in stack: " + Parent.Type.ToString());
+				}
+			} else {
+				if (ChildName != null) {
+					throw new ArgumentOutOfRangeException("ChildName", "Can not create named element without container (Dictionary)");
+				} else if (!AddToStack) {
+					pWriter.WriteMessage(Element);
+				}
+			}
+			if (AddToStack) pStack.Push(Element);
+			return Element;
+		}
+
+		public PmlElement EndElement() {
+			if (pStack.Count > 0) {
+				PmlElement Element = pStack.Pop();
+				if (pStack.Count == 0) {
+					if (pWriter != null) pWriter.WriteMessage(Element);
+				}
+				return Element;
+			} else {
+				return null;
+			}
+		}
+		public PmlElement GetMessage() {
+			if (pStack.Count == 1) {
+				PmlElement Element = pStack.Pop();
+				return Element;
+			} else if (pStack.Count == 0) {
+				throw new InvalidOperationException("No stacked element. The top most element should not be ended. All elements, except Dictionary and Collection, are sent automatically.");
+			} else {
+				throw new InvalidOperationException("All elements, except for the top most element, should be ended.");
+			}
+		}
+
+		public PmlElement SendMessage() {
+			PmlElement Element;
+			if (pWriter == null) throw new NullReferenceException("Writer is not set");
+			Element = GetMessage();
+			pWriter.WriteMessage(Element);
+			return Element;
+		}
+
+		public PmlDictionary Dictionary() {
+			return (PmlDictionary)AddChildElement(new PmlDictionary(), true);
+		}
+		public PmlCollection Collection() {
+			return (PmlCollection)AddChildElement(new PmlCollection(), true);
+		}
+		public PmlString String(string Value) {
+			return (PmlString)AddChildElement(new PmlString(Value), false);
+		}
+		public PmlBinary Binary(byte[] Value) {
+			return (PmlBinary)AddChildElement(new PmlBinary(Value), false);
+		}
+		public PmlInteger Integer(UInt64 Value) {
+			return (PmlInteger)AddChildElement(new PmlInteger(Value), false);
+		}
+		public PmlInteger Integer(Int64 Value) {
+			return (PmlInteger)AddChildElement(new PmlInteger(Value), false);
+		}
+		public PmlNull Null() {
+			return (PmlNull)AddChildElement(new PmlNull(), false);
+		}
+		public PmlElement Element(PmlElement Child) {
+			return AddChildElement(Child, false);
+		}
+
+		public PmlDictionary Dictionary(string Name) {
+			return (PmlDictionary)AddChildElement(new PmlDictionary(), true, Name);
+		}
+		public PmlCollection Collection(string Name) {
+			return (PmlCollection)AddChildElement(new PmlCollection(), true, Name);
+		}
+		public PmlString String(string Name, string Value) {
+			return (PmlString)AddChildElement(new PmlString(Value), false, Name);
+		}
+		public PmlBinary Binary(string Name, byte[] Value) {
+			return (PmlBinary)AddChildElement(new PmlBinary(Value), false, Name);
+		}
+		public PmlInteger Integer(string Name, UInt64 Value) {
+			return (PmlInteger)AddChildElement(new PmlInteger(Value), false, Name);
+		}
+		public PmlInteger Integer(string Name, Int64 Value) {
+			return (PmlInteger)AddChildElement(new PmlInteger(Value), false, Name);
+		}
+		public PmlNull Null(string Name) {
+			return (PmlNull)AddChildElement(new PmlNull(), false, Name);
+		}
+		public PmlElement Element(string Name, PmlElement Child) {
+			return AddChildElement(Child, false, Name);
+		}
+	}
+}
\ No newline at end of file