Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / SMDiagnostics / System / ServiceModel / Diagnostics / PlainXmlWriter.cs / 1305376 / PlainXmlWriter.cs
//------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------- namespace System.ServiceModel.Diagnostics { using System.Xml; using System.Diagnostics; ////// Very basic performance-oriented XmlWriter implementation. No validation/encoding is made. /// Namespaces are not supported /// Minimal formatting support /// internal class PlainXmlWriter : XmlWriter { internal class MaxSizeExceededException : Exception { } TraceXPathNavigator navigator; bool writingAttribute = false; string currentAttributeName; string currentAttributePrefix; string currentAttributeNs; string currentAttributeText = string.Empty; public PlainXmlWriter() : this(-1) //no quota { } public PlainXmlWriter(int maxSize) { this.navigator = new TraceXPathNavigator(maxSize); } public TraceXPathNavigator Navigator { get { return this.navigator; } } public override void WriteStartDocument() { } public override void WriteStartDocument(bool standalone) { } public override void WriteDocType(string name, string pubid, string sysid, string subset) { } public override void WriteEndDocument() { } public override string LookupPrefix(string ns) { return this.navigator.LookupPrefix(ns); } public override WriteState WriteState { get { return this.navigator.WriteState; } } public override XmlSpace XmlSpace { get { return XmlSpace.Default; } } public override string XmlLang { get { return string.Empty; } } public override void WriteValue(object value) { this.navigator.AddText(value.ToString()); } public override void WriteValue(string value) { this.navigator.AddText(value); } public override void WriteBase64(byte[] buffer, int offset, int count) { } public override void WriteStartElement(string prefix, string localName, string ns) { #pragma warning disable 618 AssertUtility.DebugAssert(!String.IsNullOrEmpty(localName), ""); #pragma warning restore 618 if (String.IsNullOrEmpty(localName)) { throw new ArgumentNullException("localName"); } this.navigator.AddElement(prefix, localName, ns); } public override void WriteFullEndElement() { WriteEndElement(); } public override void WriteEndElement() { this.navigator.CloseElement(); } public override void WriteStartAttribute(string prefix, string localName, string ns) { #pragma warning disable 618 AssertUtility.DebugAssert(!this.writingAttribute, ""); #pragma warning restore 618 if (this.writingAttribute) { throw new InvalidOperationException(); } this.currentAttributeName = localName; this.currentAttributePrefix = prefix; this.currentAttributeNs = ns; this.currentAttributeText = string.Empty; this.writingAttribute = true; } public override void WriteEndAttribute() { #pragma warning disable 618 AssertUtility.DebugAssert(this.writingAttribute, ""); #pragma warning restore 618 if (!this.writingAttribute) { throw new InvalidOperationException(); } this.navigator.AddAttribute(this.currentAttributeName, this.currentAttributeText, this.currentAttributeNs, this.currentAttributePrefix); this.writingAttribute = false; } public override void WriteCData(string text) { this.WriteRaw(""); } public override void WriteComment(string text) { this.navigator.AddComment(text); } public override void WriteProcessingInstruction(string name, string text) { this.navigator.AddProcessingInstruction(name, text); } public override void WriteEntityRef(string name) { } public override void WriteCharEntity(char ch) { } public override void WriteSurrogateCharEntity(char lowChar, char highChar) { } public override void WriteWhitespace(string ws) { } public override void WriteString(string text) { if (this.writingAttribute) { currentAttributeText += text; } else { this.WriteValue(text); } } public override void WriteChars(Char[] buffer, int index, int count) { // Exceptions being thrown as per data found at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemxmlxmlwriterclasswritecharstopic.asp if (buffer == null) { throw new ArgumentNullException("buffer"); } if (index < 0) { throw new ArgumentOutOfRangeException("index"); } if (count < 0) { throw new ArgumentOutOfRangeException("count"); } if ((buffer.Length - index) < count) { throw new ArgumentException(TraceSR.GetString(TraceSR.WriteCharsInvalidContent)); } this.WriteString(new string(buffer, index, count)); } public override void WriteRaw(String data) { this.WriteString(data); } public override void WriteRaw(Char[] buffer, int index, int count) { this.WriteChars(buffer, index, count); } public override void Close() { } public override void Flush() { } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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