113 lines
4.3 KiB
C#
113 lines
4.3 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="XPathException.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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// <owner current="true" primary="true">[....]</owner>
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//------------------------------------------------------------------------------
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namespace System.Xml.XPath {
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using System;
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using System.IO;
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using System.Resources;
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using System.Runtime.Serialization;
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using System.Diagnostics;
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using System.Security.Permissions;
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// Represents the exception that is thrown when there is error processing an
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// XPath expression.
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[Serializable]
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public class XPathException : SystemException {
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// we need to keep this members for V1 serialization compatibility
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string res;
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string[] args;
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// message != null for V1 & V2 exceptions deserialized in Whidbey
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// message == null for created V2 exceptions; the exception message is stored in Exception._message
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string message;
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protected XPathException(SerializationInfo info, StreamingContext context) : base(info, context) {
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res = (string ) info.GetValue("res" , typeof(string ));
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args = (string[]) info.GetValue("args", typeof(string[]));
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// deserialize optional members
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string version = null;
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foreach ( SerializationEntry e in info ) {
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if ( e.Name == "version" ) {
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version = (string)e.Value;
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}
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}
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if (version == null) {
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// deserializing V1 exception
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message = CreateMessage(res, args);
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}
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else {
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// deserializing V2 or higher exception -> exception message is serialized by the base class (Exception._message)
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message = null;
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}
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}
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[SecurityPermissionAttribute(SecurityAction.LinkDemand,SerializationFormatter=true)]
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public override void GetObjectData(SerializationInfo info, StreamingContext context) {
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base.GetObjectData(info, context);
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info.AddValue("res" , res );
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info.AddValue("args", args);
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info.AddValue("version", "2.0");
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}
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public XPathException() : this (string.Empty, (Exception) null) {}
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public XPathException(string message) : this (message, (Exception) null) {}
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public XPathException(string message, Exception innerException) :
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this(Res.Xml_UserException, new string[] { message }, innerException) {
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}
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internal static XPathException Create(string res) {
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return new XPathException(res, (string[])null);
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}
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internal static XPathException Create(string res, string arg) {
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return new XPathException(res, new string[] { arg });
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}
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internal static XPathException Create(string res, string arg, string arg2) {
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return new XPathException(res, new string[] { arg, arg2 });
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}
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internal static XPathException Create(string res, string arg, Exception innerException) {
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return new XPathException(res, new string[] { arg }, innerException);
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}
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private XPathException(string res, string[] args) :
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this(res, args, null) {
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}
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private XPathException(string res, string[] args, Exception inner) :
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base(CreateMessage(res, args), inner) {
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HResult = HResults.XmlXPath;
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this.res = res;
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this.args = args;
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}
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private static string CreateMessage(string res, string[] args) {
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try {
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string message = Res.GetString(res, args);
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if (message == null)
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message = "UNKNOWN("+res+")";
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return message;
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}
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catch ( MissingManifestResourceException ) {
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return "UNKNOWN("+res+")";
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}
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}
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public override string Message {
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get {
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return (message == null) ? base.Message : message;
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}
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}
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}
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}
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