private static MetadataWorkspace CreateWorkSpace()
{
string sql = @"select csdl,msl,ssdl from Chapter7.Definitions";
XmlReader csdlReader = null;
XmlReader mslReader = null;
XmlReader ssdlReader = null;
using (var cn = new SqlConnection(connString))
{
using (var cmd = new SqlCommand(sql, cn))
{
cn.Open();
var reader = cmd.ExecuteReader();
if (reader.Read())
{
csdlReader = reader.GetSqlXml(0).CreateReader();
mslReader = reader.GetSqlXml(1).CreateReader();
ssdlReader = reader.GetSqlXml(2).CreateReader();
}
}
}
var workspace = new MetadataWorkspace();
var edmCollection = new EdmItemCollection(new XmlReader[] { csdlReader });
var ssdlCollection = new StoreItemCollection(new XmlReader[] { ssdlReader });
var mappingCollection = new StorageMappingItemCollection(edmCollection, ssdlCollection, new XmlReader[] { mslReader });
workspace.RegisterItemCollection(edmCollection);
workspace.RegisterItemCollection(ssdlCollection);
workspace.RegisterItemCollection(mappingCollection);
return(workspace);
}
public static MetadataWorkspace CreateFakeMetadataWorkspace()
{
EdmItemCollection edmItemCollection;
StoreItemCollection storeItemCollection;
StorageMappingItemCollection mappingItemCollection;
using (var reader = XmlReader.Create(new StringReader(Csdl)))
{
edmItemCollection = new EdmItemCollection(new [] { reader });
}
using (var reader = XmlReader.Create(new StringReader(Ssdl)))
{
storeItemCollection = new StoreItemCollection(new[] { reader });
}
using (var reader = XmlReader.Create(new StringReader(Msl)))
{
mappingItemCollection =
new StorageMappingItemCollection(
edmItemCollection, storeItemCollection, new [] { reader });
}
return(new MetadataWorkspace(
() => edmItemCollection,
() => storeItemCollection,
() => mappingItemCollection));
}
private GeneratedView(
EntitySetBase extent,
EdmType type,
DbQueryCommandTree commandTree,
string eSQL,
DiscriminatorMap discriminatorMap,
StorageMappingItemCollection mappingItemCollection,
ConfigViewGenerator config)
{
this.m_extent = extent;
this.m_type = type;
this.m_commandTree = commandTree;
this.m_eSQL = eSQL;
this.m_discriminatorMap = discriminatorMap;
this.m_mappingItemCollection = mappingItemCollection;
this.m_config = config;
if (!this.m_config.IsViewTracing)
{
return;
}
StringBuilder builder = new StringBuilder(1024);
this.ToCompactString(builder);
Helpers.FormatTraceLine("CQL view for {0}", (object)builder.ToString());
}
/// <summary>
/// Creates the MetadataWorkspace for the given context type and base context type.
/// </summary>
/// <param name="contextType">The type of the context.</param>
/// <param name="baseContextType">The base context type (DbContext or ObjectContext).</param>
/// <returns>The generated <see cref="MetadataWorkspace"/></returns>
public static MetadataWorkspace CreateMetadataWorkspaceFromResources(Type contextType, Type baseContextType)
{
// get the set of embedded mapping resources for the target assembly and create
// a metadata workspace info for each group
IEnumerable <string> metadataResourcePaths = FindMetadataResources(contextType.Assembly);
IEnumerable <MetadataWorkspaceInfo> workspaceInfos = GetMetadataWorkspaceInfos(metadataResourcePaths);
// Search for the correct EntityContainer by name and if found, create
// a comlete MetadataWorkspace and return it
foreach (var workspaceInfo in workspaceInfos)
{
EdmItemCollection edmItemCollection = new EdmItemCollection(workspaceInfo.Csdl);
Type currentType = contextType;
while (currentType != baseContextType && currentType != typeof(object))
{
EntityContainer container;
if (edmItemCollection.TryGetEntityContainer(currentType.Name, out container))
{
StoreItemCollection store = new StoreItemCollection(workspaceInfo.Ssdl);
StorageMappingItemCollection mapping = new StorageMappingItemCollection(edmItemCollection, store, workspaceInfo.Msl);
MetadataWorkspace workspace = new MetadataWorkspace();
workspace.RegisterItemCollection(edmItemCollection);
workspace.RegisterItemCollection(store);
workspace.RegisterItemCollection(mapping);
workspace.RegisterItemCollection(new ObjectItemCollection());
return(workspace);
}
currentType = currentType.BaseType;
}
}
return(null);
}
/// <summary>
/// 设置数据库初始化，策略为自动迁移到最新版本
/// </summary>
public static void Initialize()
{
CodeFirstDbContext context = new CodeFirstDbContext();
IDatabaseInitializer <CodeFirstDbContext> initializer;
if (!context.Database.Exists())
{
initializer = new CreateDatabaseIfNotExistsWithSeed();
}
else
{
initializer = new NullDatabaseInitializer <CodeFirstDbContext>();
// initializer = new MigrateDatabaseToLatestVersion<CodeFirstDbContext, MigrationsConfiguration>();
}
Database.SetInitializer(initializer);
//EF预热，解决EF6第一次加载慢的问题
ObjectContext objectContext = ((IObjectContextAdapter)context).ObjectContext;
StorageMappingItemCollection mappingItemCollection = (StorageMappingItemCollection)objectContext.ObjectStateManager
.MetadataWorkspace.GetItemCollection(DataSpace.CSSpace);
mappingItemCollection.GenerateViews(new List <EdmSchemaError>());
context.Dispose();
}
public void Pregenerated_views_are_found_for_EDMX_model()
{
var edmItemCollection = new EdmItemCollection(new[] { XDocument.Parse(PregenContextEdmx.Csdl).CreateReader() });
var storeItemCollection = new StoreItemCollection(new[] { XDocument.Parse(PregenContextEdmx.Ssdl).CreateReader() });
IList <EdmSchemaError> errors;
var storageMappingItemCollection = StorageMappingItemCollection.Create(
edmItemCollection,
storeItemCollection,
new[] { XDocument.Parse(PregenContextEdmx.Msl).CreateReader() },
null,
out errors);
var workspace = new MetadataWorkspace(
() => edmItemCollection,
() => storeItemCollection,
() => storageMappingItemCollection);
using (var context = new PregenContextEdmx(workspace))
{
var _ = context.Blogs.ToString(); // Trigger view loading
Assert.True(PregenContextEdmxViews.View0Accessed);
Assert.True(PregenContextEdmxViews.View1Accessed);
}
}
public void Prepare_returns_a_new_instance()
{
var objectQueryExecutionPlanFactory = new ObjectQueryExecutionPlanFactory(
Common.Internal.Materialization.MockHelper.CreateTranslator <object>());
var edmItemCollection = new EdmItemCollection();
var fakeSqlProviderManifest = FakeSqlProviderServices.Instance.GetProviderManifest("2008");
var storeItemCollection = new StoreItemCollection(FakeSqlProviderFactory.Instance, fakeSqlProviderManifest, "System.Data.SqlClient", "2008");
var mappingItemCollection = new StorageMappingItemCollection(edmItemCollection, storeItemCollection, Enumerable.Empty <XmlReader>());
var metadataWorkspace = new MetadataWorkspace(
() => edmItemCollection,
() => storeItemCollection,
() => mappingItemCollection);
var fakeSqlConnection = new FakeSqlConnection();
fakeSqlConnection.ConnectionString = "foo";
var entityConnection = new EntityConnection(metadataWorkspace, fakeSqlConnection, false);
var objectContext = new ObjectContext(entityConnection);
var dbExpression = new DbNullExpression(TypeUsage.Create(fakeSqlProviderManifest.GetStoreTypes().First()));
var dbQueryCommandTree = new DbQueryCommandTree(
metadataWorkspace, DataSpace.CSpace,
dbExpression, validate: false, useDatabaseNullSemantics: true);
var parameters = new List <Tuple <ObjectParameter, QueryParameterExpression> >();
var objectQueryExecutionPlan = objectQueryExecutionPlanFactory.Prepare(
objectContext, dbQueryCommandTree, typeof(object),
MergeOption.NoTracking, false, new Span(), parameters, aliasGenerator: null);
Assert.NotNull(objectQueryExecutionPlan);
}
private static MetadataWorkspace CreateWrappedMetadataWorkspace(string metadata, IEnumerable <string> wrapperProviderNames)
{
MetadataWorkspace workspace = new MetadataWorkspace();
// parse Metadata keyword and load CSDL,SSDL,MSL files into XElement structures...
var csdl = new List <XElement>();
var ssdl = new List <XElement>();
var msl = new List <XElement>();
ParseMetadata(metadata, csdl, ssdl, msl);
// fix all SSDL files by changing 'Provider' to our provider and modifying
foreach (var ssdlFile in ssdl)
{
foreach (string providerName in wrapperProviderNames)
{
ssdlFile.Attribute("ProviderManifestToken").Value = ssdl[0].Attribute("Provider").Value + ";" + ssdlFile.Attribute("ProviderManifestToken").Value;
ssdlFile.Attribute("Provider").Value = providerName;
}
}
// load item collections from XML readers created from XElements...
EdmItemCollection eic = new EdmItemCollection(csdl.Select(c => c.CreateReader()));
StoreItemCollection sic = new StoreItemCollection(ssdl.Select(c => c.CreateReader()));
StorageMappingItemCollection smic = new StorageMappingItemCollection(eic, sic, msl.Select(c => c.CreateReader()));
// and create metadata workspace based on them.
workspace = new MetadataWorkspace();
workspace.RegisterItemCollection(eic);
workspace.RegisterItemCollection(sic);
workspace.RegisterItemCollection(smic);
return(workspace);
}
static internal DbExpression CompileFunctionView(
string viewDef,
StorageMappingItemCollection mappingItemCollection,
ParserOptions.CompilationMode compilationMode,
IEnumerable<DbParameterReferenceExpression> parameters)
{
Debug.Assert(!String.IsNullOrEmpty(viewDef), "!String.IsNullOrEmpty(viewDef)");
Debug.Assert(mappingItemCollection != null, "mappingItemCollection != null");
Perspective perspective = new TargetPerspective(mappingItemCollection.Workspace);
ParserOptions parserOptions = new ParserOptions();
parserOptions.ParserCompilationMode = compilationMode;
// Parameters have to be accessible in the body as regular scope variables, not as command parameters.
// Hence compile view as lambda with parameters as lambda vars, then invoke the lambda specifying
// command parameters as values of the lambda vars.
DbLambda functionBody = CqlQuery.CompileQueryCommandLambda(
viewDef,
perspective,
parserOptions,
null /* parameters */,
parameters.Select(pInfo => pInfo.ResultType.Variable(pInfo.ParameterName)));
Debug.Assert(functionBody != null, "functionBody != null");
DbExpression expr = functionBody.Invoke(parameters);
return expr;
}
internal static StorageMappingItemCollection CreateStorageMappingItemCollection(string ssdl, string csdl, string msl)
{
StoreItemCollection storeCollection;
EdmItemCollection edmCollection;
StorageMappingItemCollection mappingCollection;
using (var stringReader = new StringReader(ssdl))
using (var xmlReader = XmlReader.Create(stringReader))
{
storeCollection = new StoreItemCollection(new[] { xmlReader });
}
using (var stringReader = new StringReader(csdl))
using (var xmlReader = XmlReader.Create(stringReader))
{
edmCollection = new EdmItemCollection(new[] { xmlReader });
}
using (var stringReader = new StringReader(msl))
using (var xmlReader = XmlReader.Create(stringReader))
{
mappingCollection = new StorageMappingItemCollection(edmCollection, storeCollection, new[] { xmlReader });
}
return(mappingCollection);
}
private GeneratedView(
EntitySetBase extent,
EdmType type,
DbQueryCommandTree commandTree,
string eSQL,
DiscriminatorMap discriminatorMap,
StorageMappingItemCollection mappingItemCollection,
ConfigViewGenerator config)
{
// At least one of the commandTree or eSQL must be specified.
// Both are specified in the case of user-defined views.
Debug.Assert(commandTree != null || !String.IsNullOrEmpty(eSQL), "commandTree or eSQL must be specified");
m_extent = extent;
m_type = type;
m_commandTree = commandTree;
m_eSQL = eSQL;
m_discriminatorMap = discriminatorMap;
m_mappingItemCollection = mappingItemCollection;
m_config = config;
if (m_config.IsViewTracing)
{
var trace = new StringBuilder(1024);
ToCompactString(trace);
Helpers.FormatTraceLine("CQL view for {0}", trace.ToString());
}
}
public void Workspace_returns_a_new_workspace_with_all_collections_registered()
{
var edmItemCollection = new EdmItemCollection(new[] { XDocument.Parse(Csdl).CreateReader() });
var storeItemCollection = new StoreItemCollection(new[] { XDocument.Parse(Ssdl).CreateReader() });
IList <EdmSchemaError> errors;
var storageMappingItemCollection = StorageMappingItemCollection.Create(
edmItemCollection,
storeItemCollection,
new[] { XDocument.Parse(Msl).CreateReader() },
null,
out errors);
var workspace = storageMappingItemCollection.Workspace;
Assert.Same(edmItemCollection, workspace.GetItemCollection(DataSpace.CSpace));
Assert.Same(storeItemCollection, workspace.GetItemCollection(DataSpace.SSpace));
Assert.Same(storageMappingItemCollection, workspace.GetItemCollection(DataSpace.CSSpace));
var objectItemCollection = (ObjectItemCollection)workspace.GetItemCollection(DataSpace.OSpace);
var ocMappingCollection = (DefaultObjectMappingItemCollection)workspace.GetItemCollection(DataSpace.OCSpace);
Assert.Same(objectItemCollection, ocMappingCollection.ObjectItemCollection);
Assert.Same(edmItemCollection, ocMappingCollection.EdmItemCollection);
}
// <summary>
// Creates generated view object for the combination of the <paramref name="extent" /> and the <paramref name="type" />.
// This constructor is used for regular cell-based view generation.
// </summary>
internal static GeneratedView CreateGeneratedView(
EntitySetBase extent,
EdmType type,
DbQueryCommandTree commandTree,
string eSQL,
StorageMappingItemCollection mappingItemCollection,
ConfigViewGenerator config)
{
// If config.GenerateEsql is specified, eSQL must be non-null.
// If config.GenerateEsql is false, commandTree is non-null except the case when loading pre-compiled eSQL views.
Debug.Assert(!config.GenerateEsql || !String.IsNullOrEmpty(eSQL), "eSQL must be specified");
DiscriminatorMap discriminatorMap = null;
if (commandTree != null)
{
commandTree = ViewSimplifier.SimplifyView(extent, commandTree);
// See if the view matches the "discriminated" pattern (allows simplification of generated store commands)
if (extent.BuiltInTypeKind
== BuiltInTypeKind.EntitySet)
{
if (DiscriminatorMap.TryCreateDiscriminatorMap((EntitySet)extent, commandTree.Query, out discriminatorMap))
{
Debug.Assert(discriminatorMap != null, "discriminatorMap == null after it has been created");
}
}
}
return(new GeneratedView(extent, type, commandTree, eSQL, discriminatorMap, mappingItemCollection, config));
}
private static StorageMappingItemCollection LoadMappingItemCollection(
DbProviderManifest providerManifest, string mslName, EdmItemCollection edmItemCollection,
StoreItemCollection storeItemCollection)
{
using (var mslReader = providerManifest.GetInformation(mslName))
{
IList <EdmSchemaError> errors;
var mappingItemCollection =
StorageMappingItemCollection.Create(
edmItemCollection,
storeItemCollection,
new[] { mslReader },
new ReadOnlyCollection <string>(
new List <string>
{
GetProviderServicesInformationLocationPath(
providerManifest.GetType().Assembly.FullName,
mslName)
}),
out errors);
ThrowOnError(errors);
return(mappingItemCollection);
}
}
private static MetadataWorkspace CreateMetadataWorkspace()
{
const string ssdl =
@"<Schema Namespace=""NorthwindEF5Model.Store"" Provider=""System.Data.SqlClient"" ProviderManifestToken=""2008"" Alias=""Self"" xmlns=""http://schemas.microsoft.com/ado/2009/11/edm/ssdl"" xmlns:store=""http://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator"">"
+
@" <EntityType Name=""Customers"">" +
@" <Key>" +
@" <PropertyRef Name=""CustomerID"" />" +
@" </Key>" +
@" <Property Name=""CustomerID"" Type=""nchar"" MaxLength=""5"" Nullable=""false"" />" +
@" <Property Name=""CompanyName"" Type=""nvarchar"" MaxLength=""40"" Nullable=""false"" />" +
@" </EntityType>" +
@" <EntityContainer Name=""Container"" />" +
@"</Schema>";
const string csdl =
@"<Schema xmlns=""http://schemas.microsoft.com/ado/2009/11/edm"" Namespace=""dummy"">" +
@" <EntityContainer Name=""DummyContainer""/>" +
@"</Schema>";
const string msl =
@"<Mapping Space=""C-S"" xmlns=""http://schemas.microsoft.com/ado/2009/11/mapping/cs"">" +
@" <EntityContainerMapping StorageEntityContainer=""Container"" CdmEntityContainer=""DummyContainer"" />" +
@"</Mapping>";
var storeItemCollection = Utils.CreateStoreItemCollection(ssdl);
var edmItemCollection = new EdmItemCollection(new[] { XmlReader.Create(new StringReader(csdl)) });
var mappingItemCollection =
new StorageMappingItemCollection(
edmItemCollection,
storeItemCollection,
new[] { XmlReader.Create(new StringReader(msl)) });
return(new MetadataWorkspace(() => edmItemCollection, () => storeItemCollection, () => mappingItemCollection));
}
public void Workspace_can_be_constructed_when_EDM_identifiers_start_with_underscores()
{
var edmItemCollection = new EdmItemCollection(new[] { XDocument.Parse(UnderpantsCsdl).CreateReader() });
var storeItemCollection = new StoreItemCollection(new[] { XDocument.Parse(UnderpantsSsdl).CreateReader() });
IList<EdmSchemaError> errors;
var storageMappingItemCollection = StorageMappingItemCollection.Create(
edmItemCollection,
storeItemCollection,
new[] { XDocument.Parse(UnderpantsMsl).CreateReader() },
null,
out errors);
Assert.Equal(0, errors.Count);
Assert.NotNull(storageMappingItemCollection);
var workspace = new MetadataWorkspace(
() => edmItemCollection,
() => storeItemCollection,
() => storageMappingItemCollection);
// Run enough initialization to get validation done
using (var connection = new EntityConnection(workspace, new SqlConnection()))
{
Assert.Same(edmItemCollection, connection.GetMetadataWorkspace().GetItemCollection(DataSpace.CSpace));
Assert.Same(storeItemCollection, connection.GetMetadataWorkspace().GetItemCollection(DataSpace.SSpace));
Assert.Same(storageMappingItemCollection, connection.GetMetadataWorkspace().GetItemCollection(DataSpace.CSSpace));
}
}
internal FunctionImportMappingComposable(
EdmFunction functionImport,
EdmFunction targetFunction,
List <Tuple <StructuralType, List <StorageConditionPropertyMapping>, List <StoragePropertyMapping> > > structuralTypeMappings,
EdmProperty[] targetFunctionKeys,
StorageMappingItemCollection mappingItemCollection)
: base(functionImport, targetFunction)
{
DebugCheck.NotNull(mappingItemCollection);
Debug.Assert(functionImport.IsComposableAttribute, "functionImport.IsComposableAttribute");
Debug.Assert(targetFunction.IsComposableAttribute, "targetFunction.IsComposableAttribute");
Debug.Assert(
functionImport.EntitySet == null || structuralTypeMappings != null,
"Function import returning entities must have structuralTypeMappings.");
Debug.Assert(
structuralTypeMappings == null || structuralTypeMappings.Count > 0, "Non-null structuralTypeMappings must not be empty.");
EdmType resultType;
Debug.Assert(
structuralTypeMappings != null ||
MetadataHelper.TryGetFunctionImportReturnType(functionImport, 0, out resultType) && TypeSemantics.IsScalarType(resultType),
"Either type mappings should be specified or the function import should be Collection(Scalar).");
Debug.Assert(
functionImport.EntitySet == null || targetFunctionKeys != null,
"Keys must be inferred for a function import returning entities.");
Debug.Assert(targetFunctionKeys == null || targetFunctionKeys.Length > 0, "Keys must be null or non-empty.");
m_mappingItemCollection = mappingItemCollection;
// We will use these parameters to target s-space function calls in the generated command tree.
// Since enums don't exist in s-space we need to use the underlying type.
m_commandParameters =
functionImport.Parameters.Select(p => TypeHelpers.GetPrimitiveTypeUsageForScalar(p.TypeUsage).Parameter(p.Name)).ToArray();
m_structuralTypeMappings = structuralTypeMappings;
m_targetFunctionKeys = targetFunctionKeys;
}
/// <summary>
/// Creates generated view object for the combination of the <paramref name="extent"/> and the <paramref name="type"/>.
/// This constructor is used for regular cell-based view generation.
/// </summary>
internal static GeneratedView CreateGeneratedView(EntitySetBase extent,
EdmType type,
DbQueryCommandTree commandTree,
string eSQL,
StorageMappingItemCollection mappingItemCollection,
ConfigViewGenerator config)
{
// If config.GenerateEsql is specified, eSQL must be non-null.
// If config.GenerateEsql is false, commandTree is non-null except the case when loading pre-compiled eSQL views.
Debug.Assert(!config.GenerateEsql || !String.IsNullOrEmpty(eSQL), "eSQL must be specified");
DiscriminatorMap discriminatorMap = null;
if (commandTree != null)
{
commandTree = ViewSimplifier.SimplifyView(extent, commandTree);
// See if the view matches the "discriminated" pattern (allows simplification of generated store commands)
if (extent.BuiltInTypeKind == BuiltInTypeKind.EntitySet)
{
if (DiscriminatorMap.TryCreateDiscriminatorMap((EntitySet)extent, commandTree.Query, out discriminatorMap))
{
Debug.Assert(discriminatorMap != null, "discriminatorMap == null after it has been created");
}
}
}
return new GeneratedView(extent, type, commandTree, eSQL, discriminatorMap, mappingItemCollection, config);
}
private static MetadataWorkspace CreateEdmxBasedWorkspace(DbContext context)
{
var edmxBuilder = new StringBuilder();
EdmxWriter.WriteEdmx(context, XmlWriter.Create(edmxBuilder));
var edmx = XDocument.Parse(edmxBuilder.ToString());
var edmItemCollection = new EdmItemCollection(
new[]
{
edmx.Descendants(XName.Get("Schema", "http://schemas.microsoft.com/ado/2009/11/edm")).Single().CreateReader()
});
var storeItemCollection = new StoreItemCollection(
new[]
{
edmx.Descendants(XName.Get("Schema", "http://schemas.microsoft.com/ado/2009/11/edm/ssdl")).Single().CreateReader()
});
var mapping = new StorageMappingItemCollection(
edmItemCollection,
storeItemCollection,
new[]
{
new XElement(edmx.Descendants(XName.Get("Mapping", "http://schemas.microsoft.com/ado/2009/11/mapping/cs")).Single())
.CreateReader()
});
return(new MetadataWorkspace(() => edmItemCollection, () => storeItemCollection, () => mapping));
}
internal static DbExpression CompileFunctionView(
string viewDef,
StorageMappingItemCollection mappingItemCollection,
ParserOptions.CompilationMode compilationMode,
IEnumerable <DbParameterReferenceExpression> parameters)
{
DebugCheck.NotEmpty(viewDef);
DebugCheck.NotNull(mappingItemCollection);
Perspective perspective = new TargetPerspective(mappingItemCollection.Workspace);
var parserOptions = new ParserOptions();
parserOptions.ParserCompilationMode = compilationMode;
// Parameters have to be accessible in the body as regular scope variables, not as command parameters.
// Hence compile view as lambda with parameters as lambda vars, then invoke the lambda specifying
// command parameters as values of the lambda vars.
var functionBody = CqlQuery.CompileQueryCommandLambda(
viewDef,
perspective,
parserOptions,
null /* parameters */,
parameters.Select(pInfo => pInfo.ResultType.Variable(pInfo.ParameterName)));
Debug.Assert(functionBody != null, "functionBody != null");
DbExpression expr = functionBody.Invoke(parameters);
return(expr);
}
/// <summary>Initializes a new EntityContainerMapping instance.</summary>
/// <param name="conceptualEntityContainer">The conceptual entity container to be mapped.</param>
/// <param name="storeEntityContainer">The store entity container to be mapped.</param>
/// <param name="mappingItemCollection">The parent mapping item collection.</param>
/// <param name="generateUpdateViews">Flag indicating whether to generate update views.</param>
public EntityContainerMapping(
EntityContainer conceptualEntityContainer,
EntityContainer storeEntityContainer,
StorageMappingItemCollection mappingItemCollection,
bool generateUpdateViews)
: this(conceptualEntityContainer, storeEntityContainer, mappingItemCollection, true, generateUpdateViews)
{
}
/// <summary>
/// Creates generated view object for the combination of the <paramref name="extent"/> and the <paramref name="type"/>.
/// This constructor is used for FK association sets only.
/// </summary>
internal static GeneratedView CreateGeneratedViewForFKAssociationSet(EntitySetBase extent,
EdmType type,
DbQueryCommandTree commandTree,
StorageMappingItemCollection mappingItemCollection,
ConfigViewGenerator config)
{
return(new GeneratedView(extent, type, commandTree, null, null, mappingItemCollection, config));
}
public void StorageMappingItemCollection_Create_factory_method_throws_for_null_edmItemCollection()
{
IList <EdmSchemaError> errors;
Assert.Equal("edmItemCollection",
Assert.Throws <ArgumentNullException>(
() => StorageMappingItemCollection.Create(null, null, null, null, out errors)).ParamName);
}
/// <summary>
/// Creates generated view object for the combination of the <paramref name="extent"/> and the <paramref name="type"/>.
/// This constructor is used for FK association sets only.
/// </summary>
internal static GeneratedView CreateGeneratedViewForFKAssociationSet(EntitySetBase extent,
EdmType type,
DbQueryCommandTree commandTree,
StorageMappingItemCollection mappingItemCollection,
ConfigViewGenerator config)
{
return new GeneratedView(extent, type, commandTree, null, null, mappingItemCollection, config);
}
internal void LoadStoreCollection(EdmItemCollection edmItemCollection, MetadataArtifactLoader loader)
{
StoreItemCollection storeItemCollection = null;
IEnumerable <XmlReader> sSpaceXmlReaders = loader.CreateReaders(DataSpace.SSpace);
try
{
// Load the store side, however, only do so if we don't already have one
storeItemCollection = new StoreItemCollection(
sSpaceXmlReaders,
loader.GetPaths(DataSpace.SSpace));
}
finally
{
Helper.DisposeXmlReaders(sSpaceXmlReaders);
}
// If this entry is getting re-used, make sure that the previous query cache manager gets
// cleared up
if (_queryCacheManager != null)
{
_queryCacheManager.Clear();
}
// Update the query cache manager reference
_queryCacheManager = storeItemCollection.QueryCacheManager;
// With the store metadata in place, we can then load the mappings, however, only use it
// if we don't already have one
//
StorageMappingItemCollection storageMappingItemCollection = null;
IEnumerable <XmlReader> csSpaceXmlReaders = loader.CreateReaders(DataSpace.CSSpace);
try
{
storageMappingItemCollection = new StorageMappingItemCollection(
edmItemCollection,
storeItemCollection,
csSpaceXmlReaders,
loader.GetPaths(DataSpace.CSSpace));
}
finally
{
Helper.DisposeXmlReaders(csSpaceXmlReaders);
}
List <string> permissionPaths = new List <string>();
loader.CollectFilePermissionPaths(permissionPaths, DataSpace.SSpace);
loader.CollectFilePermissionPaths(permissionPaths, DataSpace.CSSpace);
FileIOPermission filePermissions = null;
if (permissionPaths.Count > 0)
{
filePermissions = new FileIOPermission(FileIOPermissionAccess.Read, permissionPaths.ToArray());
}
this.UpdateMetadataEntry(storageMappingItemCollection, filePermissions);
}
// virtual for mocking
internal virtual Dictionary <EntitySetBase, DbMappingView> GenerateViews(
StorageMappingItemCollection mappingItemCollection,
string conceptualModelContainerName,
string storeModelContainerName)
{
var errors = new List <EdmSchemaError>();
return(mappingItemCollection.GenerateViews(conceptualModelContainerName, storeModelContainerName, errors));
}
/// <summary>
/// Creates generated view object for the combination of the <paramref name="setMapping"/>.Set and the <paramref name="type"/>.
/// This constructor is used for user-defined query views only.
/// </summary>
internal static bool TryParseUserSpecifiedView(StorageSetMapping setMapping,
EntityTypeBase type,
string eSQL,
bool includeSubtypes,
StorageMappingItemCollection mappingItemCollection,
ConfigViewGenerator config,
/*out*/ IList <EdmSchemaError> errors,
out GeneratedView generatedView)
{
bool failed = false;
DbQueryCommandTree commandTree;
DiscriminatorMap discriminatorMap;
Exception parserException;
if (!GeneratedView.TryParseView(eSQL, true, setMapping.Set, mappingItemCollection, config, out commandTree, out discriminatorMap, out parserException))
{
EdmSchemaError error = new EdmSchemaError(System.Data.Entity.Strings.Mapping_Invalid_QueryView2(setMapping.Set.Name, parserException.Message),
(int)StorageMappingErrorCode.InvalidQueryView, EdmSchemaErrorSeverity.Error,
setMapping.EntityContainerMapping.SourceLocation, setMapping.StartLineNumber, setMapping.StartLinePosition, parserException);
errors.Add(error);
failed = true;
}
else
{
Debug.Assert(commandTree != null, "commandTree not set after parsing the view");
// Verify that all expressions appearing in the view are supported.
foreach (var error in ViewValidator.ValidateQueryView(commandTree, setMapping, type, includeSubtypes))
{
errors.Add(error);
failed = true;
}
// Verify that the result type of the query view is assignable to the element type of the entityset
CollectionType queryResultType = (commandTree.Query.ResultType.EdmType) as CollectionType;
if ((queryResultType == null) || (!setMapping.Set.ElementType.IsAssignableFrom(queryResultType.TypeUsage.EdmType)))
{
EdmSchemaError error = new EdmSchemaError(System.Data.Entity.Strings.Mapping_Invalid_QueryView_Type(setMapping.Set.Name),
(int)StorageMappingErrorCode.InvalidQueryViewResultType, EdmSchemaErrorSeverity.Error,
setMapping.EntityContainerMapping.SourceLocation, setMapping.StartLineNumber, setMapping.StartLinePosition);
errors.Add(error);
failed = true;
}
}
if (!failed)
{
generatedView = new GeneratedView(setMapping.Set, type, commandTree, eSQL, discriminatorMap, mappingItemCollection, config);
return(true);
}
else
{
generatedView = null;
return(false);
}
}
private static void ValidateAndGenerateViews(FileInfo edmxFile, LanguageOption languageOption, bool generateViews)
{
XDocument xdoc = XDocument.Load(edmxFile.FullName);
XElement c = GetCsdlFromEdmx(xdoc);
XElement s = GetSsdlFromEdmx(xdoc);
XElement m = GetMslFromEdmx(xdoc);
Version v = _namespaceManager.GetVersionFromEDMXDocument(xdoc);
// load the csdl
XmlReader[] cReaders = { c.CreateReader() };
IList <EdmSchemaError> cErrors = null;
EdmItemCollection edmItemCollection =
MetadataItemCollectionFactory.CreateEdmItemCollection(cReaders, out cErrors);
// load the ssdl
XmlReader[] sReaders = { s.CreateReader() };
IList <EdmSchemaError> sErrors = null;
StoreItemCollection storeItemCollection =
MetadataItemCollectionFactory.CreateStoreItemCollection(sReaders, out sErrors);
// load the msl
XmlReader[] mReaders = { m.CreateReader() };
IList <EdmSchemaError> mErrors = null;
StorageMappingItemCollection mappingItemCollection =
MetadataItemCollectionFactory.CreateStorageMappingItemCollection(
edmItemCollection, storeItemCollection, mReaders, out mErrors);
// either pre-compile views or validate the mappings
IList <EdmSchemaError> viewGenerationErrors = null;
if (generateViews)
{
// generate views & write them out to a file
string outputFile =
GetFileNameWithNewExtension(edmxFile, ".GeneratedViews" +
GetFileExtensionForLanguageOption(languageOption));
EntityViewGenerator evg = new EntityViewGenerator(languageOption);
using (var file = File.OpenWrite(outputFile))
{
using (var writer = new StreamWriter(file))
{
viewGenerationErrors =
evg.GenerateViews(mappingItemCollection, writer, v);
}
}
}
else
{
viewGenerationErrors = EntityViewGenerator.Validate(mappingItemCollection, v);
}
// write errors
WriteErrors(cErrors);
WriteErrors(sErrors);
WriteErrors(mErrors);
WriteErrors(viewGenerationErrors);
}
public IList <EdmSchemaError> GenerateViews(StorageMappingItemCollection mappingCollection, TextWriter outputWriter)
{
EDesignUtil.CheckArgumentNull(mappingCollection, "mappingCollection");
Version targetEntityFrameworkVersion;
IList <EdmSchemaError> errorList = GetMinimumTargetFrameworkVersion(mappingCollection, out targetEntityFrameworkVersion);
return(GenerateViews(mappingCollection, outputWriter, targetEntityFrameworkVersion).Concat(errorList).ToList());
}
public void MappingViewCacheFactory_can_be_set_and_retrieved()
{
var itemCollection = new StorageMappingItemCollection();
var factory = new SampleMappingViewCacheFactory("value");
itemCollection.MappingViewCacheFactory = factory;
Assert.Same(factory, itemCollection.MappingViewCacheFactory);
}
public static IList <EdmSchemaError> Validate(StorageMappingItemCollection mappingCollection)
{
EDesignUtil.CheckArgumentNull(mappingCollection, "mappingCollection");
Version targetEntityFrameworkVersion;
IList <EdmSchemaError> errorList = GetMinimumTargetFrameworkVersion(mappingCollection, out targetEntityFrameworkVersion);
return(Validate(mappingCollection, targetEntityFrameworkVersion).Concat(errorList).ToList());
}
/// <summary>
/// Creates generated view object for the combination of the <paramref name="setMapping"/>.Set and the <paramref name="type"/>.
/// This constructor is used for user-defined query views only.
/// </summary>
internal static bool TryParseUserSpecifiedView(StorageSetMapping setMapping,
EntityTypeBase type,
string eSQL,
bool includeSubtypes,
StorageMappingItemCollection mappingItemCollection,
ConfigViewGenerator config,
/*out*/ IList<EdmSchemaError> errors,
out GeneratedView generatedView)
{
bool failed = false;
DbQueryCommandTree commandTree;
DiscriminatorMap discriminatorMap;
Exception parserException;
if (!GeneratedView.TryParseView(eSQL, true, setMapping.Set, mappingItemCollection, config, out commandTree, out discriminatorMap, out parserException))
{
EdmSchemaError error = new EdmSchemaError(System.Data.Entity.Strings.Mapping_Invalid_QueryView2(setMapping.Set.Name, parserException.Message),
(int)StorageMappingErrorCode.InvalidQueryView, EdmSchemaErrorSeverity.Error,
setMapping.EntityContainerMapping.SourceLocation, setMapping.StartLineNumber, setMapping.StartLinePosition, parserException);
errors.Add(error);
failed = true;
}
else
{
Debug.Assert(commandTree != null, "commandTree not set after parsing the view");
// Verify that all expressions appearing in the view are supported.
foreach (var error in ViewValidator.ValidateQueryView(commandTree, setMapping, type, includeSubtypes))
{
errors.Add(error);
failed = true;
}
// Verify that the result type of the query view is assignable to the element type of the entityset
CollectionType queryResultType = (commandTree.Query.ResultType.EdmType) as CollectionType;
if ((queryResultType == null) || (!setMapping.Set.ElementType.IsAssignableFrom(queryResultType.TypeUsage.EdmType)))
{
EdmSchemaError error = new EdmSchemaError(System.Data.Entity.Strings.Mapping_Invalid_QueryView_Type(setMapping.Set.Name),
(int)StorageMappingErrorCode.InvalidQueryViewResultType, EdmSchemaErrorSeverity.Error,
setMapping.EntityContainerMapping.SourceLocation, setMapping.StartLineNumber, setMapping.StartLinePosition);
errors.Add(error);
failed = true;
}
}
if (!failed)
{
generatedView = new GeneratedView(setMapping.Set, type, commandTree, eSQL, discriminatorMap, mappingItemCollection, config);
return true;
}
else
{
generatedView = null;
return false;
}
}
public void StorageMappingItemCollection_Create_factory_method_throws_for_null_storeItemCollection()
{
var edmItemCollection = new EdmItemCollection(new[] { XDocument.Parse(Csdl).CreateReader() });
IList <EdmSchemaError> errors;
Assert.Equal("storeItemCollection",
Assert.Throws <ArgumentNullException>(
() => StorageMappingItemCollection.Create(edmItemCollection, null, null, null, out errors)).ParamName);
}
private bool GetViewsWithErrors(StorageMappingItemCollection mappingCollection, out CodeDomProvider provider, out IList <EdmSchemaError> schemaErrors, out Dictionary <EntitySetBase, string> generatedViews)
{
GetViewsAndCodeDomProvider(mappingCollection, out provider, out schemaErrors, out generatedViews);
//If the generated views are empty because of errors or warnings, then don't create an output file.
if (generatedViews.Count == 0 && schemaErrors.Count > 0)
{
return(true);
}
return(false);
}
internal static DbCommandTree CompileView(
string viewDef,
StorageMappingItemCollection mappingItemCollection,
ParserOptions.CompilationMode compilationMode)
{
DebugCheck.NotEmpty(viewDef);
DebugCheck.NotNull(mappingItemCollection);
Perspective perspective = new TargetPerspective(mappingItemCollection.Workspace);
var parserOptions = new ParserOptions();
parserOptions.ParserCompilationMode = compilationMode;
var expr = CqlQuery.Compile(viewDef, perspective, parserOptions, null).CommandTree;
Debug.Assert(expr != null, "Compile returned empty tree?");
return expr;
}
static internal DbCommandTree CompileView(
string viewDef,
StorageMappingItemCollection mappingItemCollection,
ParserOptions.CompilationMode compilationMode)
{
Debug.Assert(!String.IsNullOrEmpty(viewDef), "!String.IsNullOrEmpty(viewDef)");
Debug.Assert(mappingItemCollection != null, "mappingItemCollection != null");
Perspective perspective = new TargetPerspective(mappingItemCollection.Workspace);
ParserOptions parserOptions = new ParserOptions();
parserOptions.ParserCompilationMode = compilationMode;
DbCommandTree expr = CqlQuery.Compile(viewDef, perspective, parserOptions, null).CommandTree;
Debug.Assert(expr != null, "Compile returned empty tree?");
return expr;
}
/// <summary>
/// Given the generated <paramref name="view"/>, the <paramref name="caseStatements"/> for the multiconstant fields,
/// the <paramref name="projectedSlotMap"/> that maps different paths of the entityset (for which the view is being generated) to slot indexes in the view,
/// creates an object that is capable of generating the Cql for <paramref name="view"/>.
/// </summary>
internal CqlGenerator(CellTreeNode view,
Dictionary<MemberPath,
CaseStatement> caseStatements,
CqlIdentifiers identifiers,
MemberProjectionIndex projectedSlotMap,
int numCellsInView,
BoolExpression topLevelWhereClause,
StorageMappingItemCollection mappingItemCollection)
{
m_view = view;
m_caseStatements = caseStatements;
m_projectedSlotMap = projectedSlotMap;
m_numBools = numCellsInView; // We have that many booleans
m_topLevelWhereClause = topLevelWhereClause;
m_identifiers = identifiers;
m_mappingItemCollection = mappingItemCollection;
}
public static MetadataWorkspace CreateMetadataWorkspace(List<XElement> csdl, List<XElement> ssdl, List<XElement> msl)
{
EdmItemCollection eic = new EdmItemCollection(csdl.Select(c => c.CreateReader()));
StoreItemCollection sic = new StoreItemCollection(ssdl.Select(c => c.CreateReader()));
StorageMappingItemCollection smic = new StorageMappingItemCollection(eic, sic, msl.Select(c => c.CreateReader()));
// and create metadata workspace based on them.
#if !EFOLD
MetadataWorkspace workspace =
new MetadataWorkspace(
() => eic,
() => sic,
() => smic);
#else
// Obsolete API
MetadataWorkspace workspace = new MetadataWorkspace();
workspace.RegisterItemCollection(eic);
workspace.RegisterItemCollection(sic);
workspace.RegisterItemCollection(smic);
#endif
return workspace;
}
private GeneratedView(EntitySetBase extent,
EdmType type,
DbQueryCommandTree commandTree,
string eSQL,
DiscriminatorMap discriminatorMap,
StorageMappingItemCollection mappingItemCollection,
ConfigViewGenerator config)
{
// At least one of the commandTree or eSQL must be specified.
// Both are specified in the case of user-defined views.
Debug.Assert(commandTree != null || !String.IsNullOrEmpty(eSQL), "commandTree or eSQL must be specified");
m_extent = extent;
m_type = type;
m_commandTree = commandTree;
m_eSQL = eSQL;
m_discriminatorMap = discriminatorMap;
m_mappingItemCollection = mappingItemCollection;
m_config = config;
if (m_config.IsViewTracing)
{
StringBuilder trace = new StringBuilder(1024);
this.ToCompactString(trace);
Helpers.FormatTraceLine("CQL view for {0}", trace.ToString());
}
}
/// <summary>
/// Given an extent and its corresponding view, invokes the parser to check if the view definition is syntactically correct.
/// Iff parsing succeeds: <paramref name="commandTree"/> and <paramref name="discriminatorMap"/> are set to the parse result and method returns true,
/// otherwise if parser has thrown a catchable exception, it is returned via <paramref name="parserException"/> parameter,
/// otherwise exception is re-thrown.
/// </summary>
private static bool TryParseView(string eSQL,
bool isUserSpecified,
EntitySetBase extent,
StorageMappingItemCollection mappingItemCollection,
ConfigViewGenerator config,
out DbQueryCommandTree commandTree,
out DiscriminatorMap discriminatorMap,
out Exception parserException)
{
commandTree = null;
discriminatorMap = null;
parserException = null;
// We do not catch any internal exceptions any more
config.StartSingleWatch(PerfType.ViewParsing);
try
{
// If it is a user specified view, allow all queries. Otherwise parse the view in the restricted mode.
ParserOptions.CompilationMode compilationMode = ParserOptions.CompilationMode.RestrictedViewGenerationMode;
if (isUserSpecified)
{
compilationMode = ParserOptions.CompilationMode.UserViewGenerationMode;
}
Debug.Assert(!String.IsNullOrEmpty(eSQL), "eSQL query is not specified");
commandTree = (DbQueryCommandTree)ExternalCalls.CompileView(eSQL, mappingItemCollection, compilationMode);
// For non user-specified views, perform simplification.
if (!isUserSpecified)
{
commandTree = ViewSimplifier.SimplifyView(extent, commandTree);
}
// See if the view matches the "discriminated" pattern (allows simplification of generated store commands)
if (extent.BuiltInTypeKind == BuiltInTypeKind.EntitySet)
{
if (DiscriminatorMap.TryCreateDiscriminatorMap((EntitySet)extent, commandTree.Query, out discriminatorMap))
{
Debug.Assert(discriminatorMap != null, "discriminatorMap == null after it has been created");
}
}
}
catch (Exception e)
{
// Catching all the exception types since Query parser seems to be throwing veriety of
// exceptions - EntityException, ArgumentException, ArgumentNullException etc.
if (EntityUtil.IsCatchableExceptionType(e))
{
parserException = e;
}
else
{
throw;
}
}
finally
{
config.StopSingleWatch(PerfType.ViewParsing);
}
Debug.Assert(commandTree != null || parserException != null, "Either commandTree or parserException is expected.");
// Note: m_commandTree might have been initialized by a previous call to this method, so in consequent calls it might occur that
// both m_commandTree and parserException are not null - this would mean that the last parse attempt failed, but m_commandTree value is
// preserved from the previous call.
return parserException == null;
}
private static MetadataWorkspace CreateWrappedMetadataWorkspace(string metadata, IEnumerable<string> wrapperProviderNames)
{
// parse Metadata keyword and load CSDL,SSDL,MSL files into XElement structures...
var csdl = new List<XElement>();
var ssdl = new List<XElement>();
var msl = new List<XElement>();
ParseMetadata(metadata, csdl, ssdl, msl);
// fix all SSDL files by changing 'Provider' to our provider and modifying
foreach (var ssdlFile in ssdl)
{
foreach (string providerName in wrapperProviderNames)
{
ssdlFile.Attribute("ProviderManifestToken").Value = ssdl[0].Attribute("Provider").Value + ";" + ssdlFile.Attribute("ProviderManifestToken").Value;
ssdlFile.Attribute("Provider").Value = providerName;
}
}
// load item collections from XML readers created from XElements...
EdmItemCollection eic = new EdmItemCollection(csdl.Select(c => c.CreateReader()));
StoreItemCollection sic = new StoreItemCollection(ssdl.Select(c => c.CreateReader()));
StorageMappingItemCollection smic = new StorageMappingItemCollection(eic, sic, msl.Select(c => c.CreateReader()));
// and create metadata workspace based on them.
#if !EFOLD
MetadataWorkspace workspace =
new MetadataWorkspace(
() => eic,
() => sic,
() => smic);
#else
// Obsolete API
MetadataWorkspace workspace = new MetadataWorkspace();
workspace.RegisterItemCollection(eic);
workspace.RegisterItemCollection(sic);
workspace.RegisterItemCollection(smic);
#endif
return workspace;
}
/// <summary>
/// Creates the MetadataWorkspace for the given context type and base context type.
/// </summary>
/// <param name="contextType">The type of the context.</param>
/// <param name="baseContextType">The base context type (DbContext or ObjectContext).</param>
/// <returns>The generated <see cref="MetadataWorkspace"/></returns>
public static MetadataWorkspace CreateMetadataWorkspaceFromResources(Type contextType, Type baseContextType)
{
// get the set of embedded mapping resources for the target assembly and create
// a metadata workspace info for each group
IEnumerable<string> metadataResourcePaths = FindMetadataResources(contextType.Assembly);
IEnumerable<MetadataWorkspaceInfo> workspaceInfos = GetMetadataWorkspaceInfos(metadataResourcePaths);
// Search for the correct EntityContainer by name and if found, create
// a comlete MetadataWorkspace and return it
foreach (var workspaceInfo in workspaceInfos)
{
EdmItemCollection edmItemCollection = new EdmItemCollection(workspaceInfo.Csdl);
Type currentType = contextType;
while (currentType != baseContextType && currentType != typeof(object))
{
EntityContainer container;
if (edmItemCollection.TryGetEntityContainer(currentType.Name, out container))
{
StoreItemCollection store = new StoreItemCollection(workspaceInfo.Ssdl);
#if DBCONTEXT // This actually means EF6+
MetadataWorkspace workspace = new MetadataWorkspace(
() => edmItemCollection,
() => store,
() => new StorageMappingItemCollection(edmItemCollection, store, workspaceInfo.Msl),
() => new ObjectItemCollection());
#else // EF4
StorageMappingItemCollection mapping = new StorageMappingItemCollection(edmItemCollection, store, workspaceInfo.Msl);
MetadataWorkspace workspace = new MetadataWorkspace();
workspace.RegisterItemCollection(edmItemCollection);
workspace.RegisterItemCollection(store);
workspace.RegisterItemCollection(mapping);
workspace.RegisterItemCollection(new ObjectItemCollection());
#endif
return workspace;
}
currentType = currentType.BaseType;
}
}
return null;
}
