ScriptResourceInfo.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Extensions / UI / ScriptResourceInfo.cs / 1305376 / ScriptResourceInfo.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.UI { 
    using System; 
    using System.Collections;
    using System.Collections.Generic; 
    using System.Globalization;
    using System.Reflection;
    using System.Web.Handlers;
    using System.Web.Resources; 
    using System.Web.Util;
 
    internal class ScriptResourceInfo { 
        private string _contentType;
        private bool _performSubstitution; 
        private string _scriptName;
        private string _scriptResourceName;
        private string _typeName;
        private bool _isDebug; 
        private string _cdnPath;
        private string _cdnPathSecureConnection; 
 
        private static readonly IDictionary _scriptCache = Hashtable.Synchronized(new Hashtable());
        private static readonly IDictionary _duplicateScriptAttributesChecked = Hashtable.Synchronized(new Hashtable()); 

        public static readonly ScriptResourceInfo Empty = new ScriptResourceInfo();

        private ScriptResourceInfo() { 
        }
 
        public ScriptResourceInfo(WebResourceAttribute wra, ScriptResourceAttribute sra, Assembly assembly) 
            : this() {
            _scriptName = wra.WebResource; 
            _cdnPath = wra.CdnPath;
            _contentType = wra.ContentType;
            _performSubstitution = wra.PerformSubstitution;
            _isDebug = !String.IsNullOrEmpty(_scriptName) && _scriptName.EndsWith(".debug.js", StringComparison.OrdinalIgnoreCase); 
            if (sra != null) {
                _scriptResourceName = sra.StringResourceName; 
                _typeName = sra.StringResourceClientTypeName; 
            }
            if (!String.IsNullOrEmpty(_cdnPath)) { 
                _cdnPath = AssemblyResourceLoader.FormatCdnUrl(assembly, _cdnPath);
                _cdnPathSecureConnection = AssemblyResourceLoader.FormatCdnUrl(assembly, wra.CdnPathSecureConnection);
            }
        } 

        public string CdnPath { 
            get { 
                return _cdnPath;
            } 
        }

        public string CdnPathSecureConnection {
            get { 
                return _cdnPathSecureConnection;
            } 
        } 

        public string ContentType { 
            get { return _contentType; }
        }

        public bool IsDebug { 
            get { return _isDebug; }
        } 
 
        public bool PerformSubstitution {
            get { return _performSubstitution; } 
        }

        public string ScriptName {
            get { return _scriptName; } 
        }
 
        public string ScriptResourceName { 
            get { return _scriptResourceName; }
        } 

        public string TypeName {
            get { return _typeName; }
        } 

        public static ScriptResourceInfo GetInstance(Assembly assembly, string resourceName) { 
            // The first time this API is called, check for attributes that point to the same script 
            if (!_duplicateScriptAttributesChecked.Contains(assembly)) {
                Dictionary scripts = new Dictionary(); 
                foreach (ScriptResourceAttribute attr
                    in assembly.GetCustomAttributes(typeof(ScriptResourceAttribute), false)) {

                    string scriptName = attr.ScriptName; 
                    if (scripts.ContainsKey(scriptName)) {
                        throw new InvalidOperationException( 
                            String.Format(CultureInfo.CurrentCulture, 
                                  AtlasWeb.ScriptResourceHandler_DuplicateScriptResources,
                                  scriptName, assembly.GetName())); 
                    }
                    scripts.Add(scriptName, true);
                }
 
                _duplicateScriptAttributesChecked[assembly] = true;
            } 
            Pair cacheKey = new Pair(assembly, resourceName); 
            ScriptResourceInfo resourceInfo = (ScriptResourceInfo)_scriptCache[cacheKey];
            if (resourceInfo == null) { 
                WebResourceAttribute webResourceAttribute = null;
                ScriptResourceAttribute scriptResourceAttribute = null;
                // look for a WebResourceAttribute with that name
                object[] attrs = assembly.GetCustomAttributes(typeof(WebResourceAttribute), false); 
                foreach (WebResourceAttribute wra in attrs) {
                    if (String.Equals(wra.WebResource, resourceName, StringComparison.Ordinal)) { 
                        webResourceAttribute = wra; 
                        break;
                    } 
                }
                if (webResourceAttribute != null) {
                    // look for a script resource attribute with that name
                    attrs = assembly.GetCustomAttributes(typeof(ScriptResourceAttribute), false); 
                    foreach (ScriptResourceAttribute sra in attrs) {
                        if (String.Equals(sra.ScriptName, resourceName, StringComparison.Ordinal)) { 
                            scriptResourceAttribute = sra; 
                            break;
                        } 
                    }
                    resourceInfo = new ScriptResourceInfo(webResourceAttribute, scriptResourceAttribute, assembly);
                }
                else { 
                    resourceInfo = ScriptResourceInfo.Empty;
                } 
                // Cache the results so we don't have to do this again 
                _scriptCache[cacheKey] = resourceInfo;
            } 
            return resourceInfo;
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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