EntityDesignerBuildProvider.cs source code in C# .NET

                        Code:
                         / Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / DataEntityDesign / Design / System / Data / Entity / Design / AspNet / EntityDesignerBuildProvider.cs / 1 / EntityDesignerBuildProvider.cs
                        
                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner       [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 

using System.Collections.Generic; 
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Globalization;
using System.IO; 
using System.Text;
using System.Web.Hosting; 
using System.Web.Compilation; 
using System.Xml;
using System.Data.Metadata.Edm; 

namespace System.Data.Entity.Design.AspNet
{
    ///  
    /// The ASP .NET Build provider for the CSDL in ADO .NET
    ///  
    /// 
    [BuildProviderAppliesTo(BuildProviderAppliesTo.Code)]
    public class EntityDesignerBuildProvider : System.Web.Compilation.BuildProvider 
    {
        /// 
        /// Default constructor
        ///  
        public EntityDesignerBuildProvider()
        { 
        } 

        ///  
        /// We want ASP .NET to always reset the app domain when we have to rebuild
        /// 
        /// 
        ///  
        public override BuildProviderResultFlags GetResultFlags(CompilerResults results)
        { 
            return BuildProviderResultFlags.ShutdownAppDomainOnChange; 
        }
 
        /// 
        /// Extract the CSDL, SSDL and MSL nodes from the EDMX file and store them
        /// as embedded resources
        ///  
        /// 
        public override void GenerateCode(AssemblyBuilder assemblyBuilder) 
        { 
            using (StreamReader edmxInputStream = new StreamReader(VirtualPathProvider.OpenFile(base.VirtualPath)))
            { 
                // load up an XML document representing the edmx file
                XmlElement conceptualSchemaElement;
                XmlElement mappingElement;
                XmlElement storageSchemaElement; 
                string embedAsResourcePropertyValue;
                EntityDesignerUtils.ExtractConceptualMappingAndStorageNodes(edmxInputStream, out conceptualSchemaElement, out mappingElement, out storageSchemaElement, out embedAsResourcePropertyValue); 
 
                if (null == conceptualSchemaElement)
                { 
                    throw new XmlException("No Conceptual Schema node to embed as a resource", null, 0, 0);
                }

                if (null == storageSchemaElement) 
                {
                    throw new XmlException("No Storage Schema node to embed as a resource", null, 0, 0); 
                } 

                if (null == mappingElement) 
                {
                    throw new XmlException("No Mapping node to embed as a resource", null, 0, 0);
                }
 
                // construct output paths where the CSDL/MSL/SSDL resources will be placed
                string virtualPathPrefix = base.VirtualPath.Replace(EntityDesignerUtils._edmxFileExtension, String.Empty); 
                string conceptualVirtualPath = virtualPathPrefix + XmlConstants.CSpaceSchemaExtension; 
                string storageVirtualPath = virtualPathPrefix + XmlConstants.SSpaceSchemaExtension;
                string mappingVirtualPath = virtualPathPrefix + XmlConstants.CSSpaceSchemaExtension; 

                SetupEmbeddedResource(assemblyBuilder, this, conceptualSchemaElement, conceptualVirtualPath);
                SetupEmbeddedResource(assemblyBuilder, this, storageSchemaElement, storageVirtualPath);
                SetupEmbeddedResource(assemblyBuilder, this, mappingElement, mappingVirtualPath); 
            }
 
        } 

        private static void SetupEmbeddedResource(AssemblyBuilder assemblyBuilder, 
            BuildProvider prov, XmlElement xmlElement, string resourcePath)
        {
            // derive the resource name
            string name = resourcePath.Replace("/", "."); 
            if (name.StartsWith(".", StringComparison.Ordinal))
            { 
                name = name.Substring(1); 
            }
 
            using (Stream resStream = assemblyBuilder.CreateEmbeddedResource(prov, name))
            {
                EntityDesignerUtils.OutputXmlElementToStream(xmlElement, resStream);
            } 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner       [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 

using System.Collections.Generic; 
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Globalization;
using System.IO; 
using System.Text;
using System.Web.Hosting; 
using System.Web.Compilation; 
using System.Xml;
using System.Data.Metadata.Edm; 

namespace System.Data.Entity.Design.AspNet
{
    ///  
    /// The ASP .NET Build provider for the CSDL in ADO .NET
    ///  
    /// 
    [BuildProviderAppliesTo(BuildProviderAppliesTo.Code)]
    public class EntityDesignerBuildProvider : System.Web.Compilation.BuildProvider 
    {
        /// 
        /// Default constructor
        ///  
        public EntityDesignerBuildProvider()
        { 
        } 

        ///  
        /// We want ASP .NET to always reset the app domain when we have to rebuild
        /// 
        /// 
        ///  
        public override BuildProviderResultFlags GetResultFlags(CompilerResults results)
        { 
            return BuildProviderResultFlags.ShutdownAppDomainOnChange; 
        }
 
        /// 
        /// Extract the CSDL, SSDL and MSL nodes from the EDMX file and store them
        /// as embedded resources
        ///  
        /// 
        public override void GenerateCode(AssemblyBuilder assemblyBuilder) 
        { 
            using (StreamReader edmxInputStream = new StreamReader(VirtualPathProvider.OpenFile(base.VirtualPath)))
            { 
                // load up an XML document representing the edmx file
                XmlElement conceptualSchemaElement;
                XmlElement mappingElement;
                XmlElement storageSchemaElement; 
                string embedAsResourcePropertyValue;
                EntityDesignerUtils.ExtractConceptualMappingAndStorageNodes(edmxInputStream, out conceptualSchemaElement, out mappingElement, out storageSchemaElement, out embedAsResourcePropertyValue); 
 
                if (null == conceptualSchemaElement)
                { 
                    throw new XmlException("No Conceptual Schema node to embed as a resource", null, 0, 0);
                }

                if (null == storageSchemaElement) 
                {
                    throw new XmlException("No Storage Schema node to embed as a resource", null, 0, 0); 
                } 

                if (null == mappingElement) 
                {
                    throw new XmlException("No Mapping node to embed as a resource", null, 0, 0);
                }
 
                // construct output paths where the CSDL/MSL/SSDL resources will be placed
                string virtualPathPrefix = base.VirtualPath.Replace(EntityDesignerUtils._edmxFileExtension, String.Empty); 
                string conceptualVirtualPath = virtualPathPrefix + XmlConstants.CSpaceSchemaExtension; 
                string storageVirtualPath = virtualPathPrefix + XmlConstants.SSpaceSchemaExtension;
                string mappingVirtualPath = virtualPathPrefix + XmlConstants.CSSpaceSchemaExtension; 

                SetupEmbeddedResource(assemblyBuilder, this, conceptualSchemaElement, conceptualVirtualPath);
                SetupEmbeddedResource(assemblyBuilder, this, storageSchemaElement, storageVirtualPath);
                SetupEmbeddedResource(assemblyBuilder, this, mappingElement, mappingVirtualPath); 
            }
 
        } 

        private static void SetupEmbeddedResource(AssemblyBuilder assemblyBuilder, 
            BuildProvider prov, XmlElement xmlElement, string resourcePath)
        {
            // derive the resource name
            string name = resourcePath.Replace("/", "."); 
            if (name.StartsWith(".", StringComparison.Ordinal))
            { 
                name = name.Substring(1); 
            }
 
            using (Stream resStream = assemblyBuilder.CreateEmbeddedResource(prov, name))
            {
                EntityDesignerUtils.OutputXmlElementToStream(xmlElement, resStream);
            } 
        }
    } 
} 

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