WCFServiceClientProxyGenerator.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Extensions / Script / Services / WCFServiceClientProxyGenerator.cs / 1305376 / WCFServiceClientProxyGenerator.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.Script.Services { 
    using System; 
    using System.Globalization;
    using System.ServiceModel.Channels; 
    using System.ServiceModel.Description;
    using System.ServiceModel.Web;
    using System.Text;
 
    internal class WCFServiceClientProxyGenerator : ClientProxyGenerator {
        const int MaxIdentifierLength = 511; 
        const string DataContractXsdBaseNamespace = @"http://schemas.datacontract.org/2004/07/"; 
        const string DefaultCallbackParameterName = "callback";
        private string _path; 
        private ServiceEndpoint _serviceEndpoint;

        // Similar to proxy generation code in WCF System.Runtime.Serialization.CodeExporter
        // to generate CLR namespace from DataContract namespace 
        private static void AddToNamespace(StringBuilder builder, string fragment) {
            if (fragment == null) { 
                return; 
            }
            bool isStart = true; 

            for (int i = 0; i < fragment.Length && builder.Length < MaxIdentifierLength; i++) {
                char c = fragment[i];
 
                if (IsValid(c)) {
                    if (isStart && !IsValidStart(c)) { 
                        builder.Append("_"); 
                    }
                    builder.Append(c); 
                    isStart = false;
                }
                else if ((c == '.' || c == '/' || c == ':') && (builder.Length == 1
                    || (builder.Length > 1 && builder[builder.Length - 1] != '.'))) { 
                    builder.Append('.');
                    isStart = true; 
                } 
            }
        } 


        protected override string GetProxyPath() {
            return _path; 
        }
 
        protected override string GetJsonpCallbackParameterName() { 
            if (_serviceEndpoint == null) {
                return null; 
            }
            WebMessageEncodingBindingElement webEncodingBindingElement = _serviceEndpoint.Binding.CreateBindingElements().Find();
            if (webEncodingBindingElement != null && webEncodingBindingElement.CrossDomainScriptAccessEnabled)
            { 
                if (this._serviceEndpoint.Contract.Behaviors.Contains(typeof(JavascriptCallbackBehaviorAttribute)))
                { 
                    JavascriptCallbackBehaviorAttribute behavior = (JavascriptCallbackBehaviorAttribute)this._serviceEndpoint.Contract.Behaviors[typeof(JavascriptCallbackBehaviorAttribute)]; 
                    return behavior.UrlParameterName;
                } 
                return DefaultCallbackParameterName;
            }
            return null;
        } 

        protected override bool GetSupportsJsonp() { 
            return !String.IsNullOrEmpty(GetJsonpCallbackParameterName()); 
        }
 
        internal static string GetClientProxyScript(Type contractType, string path, bool debugMode, ServiceEndpoint serviceEndpoint) {
            ContractDescription contract = ContractDescription.GetContract(contractType);
            WebServiceData webServiceData = WebServiceData.GetWebServiceData(contract);
            WCFServiceClientProxyGenerator proxyGenerator = new WCFServiceClientProxyGenerator(path, debugMode, serviceEndpoint); 
            return proxyGenerator.GetClientProxyScript(webServiceData);
        } 
 
        // Similar to proxy generation code in WCF System.Runtime.Serialization.CodeExporter
        // to generate CLR namespace from DataContract namespace 
        protected override string GetClientTypeNamespace(string ns) {
            if (string.IsNullOrEmpty(ns)) {
                return String.Empty;
            } 

            Uri uri = null; 
            StringBuilder builder = new StringBuilder(); 
            if (Uri.TryCreate(ns, UriKind.RelativeOrAbsolute, out uri)) {
                if (!uri.IsAbsoluteUri) { 
                    AddToNamespace(builder, uri.OriginalString);
                }
                else {
                    string uriString = uri.AbsoluteUri; 
                    if (uriString.StartsWith(DataContractXsdBaseNamespace, StringComparison.Ordinal)) {
                        AddToNamespace(builder, uriString.Substring(DataContractXsdBaseNamespace.Length)); 
                    } 
                    else {
                        string host = uri.Host; 
                        if (host != null) {
                            AddToNamespace(builder, host);
                        }
                        string path = uri.PathAndQuery; 
                        if (path != null) {
                            AddToNamespace(builder, path); 
                        } 
                    }
                } 
            }

            if (builder.Length == 0) {
                return String.Empty; 
            }
 
            int length = builder.Length; 
            if (builder[builder.Length - 1] == '.') {
                length--; 
            }
            length = Math.Min(MaxIdentifierLength, length);

            return builder.ToString(0, length); 
        }
 
        protected override string GetProxyTypeName(WebServiceData data) { 
            return GetClientTypeNamespace(data.TypeData.TypeName);
        } 

        // Similar to proxy generation code in WCF System.Runtime.Serialization.CodeExporter
        // to generate CLR namespace from DataContract namespace
        private static bool IsValid(char c) { 
            UnicodeCategory uc = Char.GetUnicodeCategory(c);
 
            // each char must be Lu, Ll, Lt, Lm, Lo, Nd, Mn, Mc, Pc 

            switch (uc) { 
                case UnicodeCategory.UppercaseLetter: // Lu
                case UnicodeCategory.LowercaseLetter: // Ll
                case UnicodeCategory.TitlecaseLetter: // Lt
                case UnicodeCategory.ModifierLetter: // Lm 
                case UnicodeCategory.OtherLetter: // Lo
                case UnicodeCategory.DecimalDigitNumber: // Nd 
                case UnicodeCategory.NonSpacingMark: // Mn 
                case UnicodeCategory.SpacingCombiningMark: // Mc
                case UnicodeCategory.ConnectorPunctuation: // Pc 
                    return true;
                default:
                    return false;
            } 
        }
 
        // Similar to proxy generation code in WCF System.Runtime.Serialization.CodeExporter 
        // to generate CLR namespace from DataContract namespace
        private static bool IsValidStart(char c) { 
            return (Char.GetUnicodeCategory(c) != UnicodeCategory.DecimalDigitNumber);
        }

 

        internal WCFServiceClientProxyGenerator(string path, bool debugMode, ServiceEndpoint serviceEndpoint) { 
            _path = path; 
            _debugMode = debugMode;
            _serviceEndpoint = serviceEndpoint; 
        }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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WCFServiceClientProxyGenerator.cs source code in C# .NET

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