Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / EntityModel / SchemaObjectModel / SchemaLookupTable.cs / 1305376 / SchemaLookupTable.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Collections.Specialized; using System.Data; using System.Data.Metadata.Edm; using System.Diagnostics; using System.Data.Entity; namespace System.Data.EntityModel.SchemaObjectModel { ////// Reponsible for keep map from alias to namespace for a given schema. /// internal sealed class AliasResolver { #region Fields private Dictionary_aliasToNamespaceMap = new Dictionary (StringComparer.Ordinal); private List _usingElementCollection = new List (); private Schema _definingSchema; #endregion #region Public Methods /// /// Construct the LookUp table /// public AliasResolver(Schema schema) { _definingSchema = schema; // If there is an alias defined for the defining schema, // add it to the look up table if (!string.IsNullOrEmpty(schema.Alias)) { _aliasToNamespaceMap.Add(schema.Alias, schema.Namespace); } } ////// Add a ReferenceSchema to the table /// /// the ReferenceSchema to add public void Add(UsingElement usingElement) { Debug.Assert(usingElement != null, "refSchema parameter is null"); string newNamespace = usingElement.NamespaceName; string newAlias = usingElement.Alias; // Check whether the alias is a reserved keyword if (CheckForSystemNamespace(usingElement, newAlias, NameKind.Alias)) { newAlias = null; } //Check whether the namespace is a reserved keyword if (CheckForSystemNamespace(usingElement, newNamespace, NameKind.Namespace)) { newNamespace = null; } // see if the alias has already been used if (newAlias != null && _aliasToNamespaceMap.ContainsKey(newAlias)) { // it has, issue an error and make sure we don't try to add it usingElement.AddError(ErrorCode.AlreadyDefined, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.AliasNameIsAlreadyDefined(newAlias)); newAlias = null; } // Its okay if they add the same namespace twice, until they have different alias // if there's an alias, add it. if (newAlias != null) { _aliasToNamespaceMap.Add(newAlias, newNamespace); _usingElementCollection.Add(usingElement); } } ////// Get the Schema(s) a namespace or alias might refer to /// returned schemas may be null is called before or during Schema Resolution /// /// the name to look up ///array of schemas (0 length if no schemas match name public bool TryResolveAlias(string alias, out string namespaceName) { Debug.Assert(!String.IsNullOrEmpty(alias), "alias must never be null"); // Check if there is an alias defined with this name return _aliasToNamespaceMap.TryGetValue(alias, out namespaceName); } ////// Resolves all the namespace specified in the using elements in this schema /// public void ResolveNamespaces() { foreach (UsingElement usingElement in _usingElementCollection) { if (!_definingSchema.SchemaManager.IsValidNamespaceName(usingElement.NamespaceName)) { usingElement.AddError(ErrorCode.InvalidNamespaceInUsing, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.InvalidNamespaceInUsing(usingElement.NamespaceName)); } } } #endregion #region Private Methods ////// Check if the given name is a reserved keyword. if yes, add appropriate error to the refschema /// /// /// /// ///private bool CheckForSystemNamespace(UsingElement refSchema, string name, NameKind nameKind) { Debug.Assert(_definingSchema.ProviderManifest != null, "Since we don't allow using elements in provider manifest, provider manifest can never be null"); // We need to check for system namespace if (EdmItemCollection.IsSystemNamespace(_definingSchema.ProviderManifest, name)) { if (nameKind == NameKind.Alias) { refSchema.AddError(ErrorCode.CannotUseSystemNamespaceAsAlias, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.CannotUseSystemNamespaceAsAlias(name)); } else { refSchema.AddError(ErrorCode.NeedNotUseSystemNamespaceInUsing, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.NeedNotUseSystemNamespaceInUsing(name)); } return true; } return false; } #endregion #region Private Types /// /// Kind of Name /// private enum NameKind { ///It's an Alias Alias, ///It's a namespace Namespace, } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Collections.Specialized; using System.Data; using System.Data.Metadata.Edm; using System.Diagnostics; using System.Data.Entity; namespace System.Data.EntityModel.SchemaObjectModel { ////// Reponsible for keep map from alias to namespace for a given schema. /// internal sealed class AliasResolver { #region Fields private Dictionary_aliasToNamespaceMap = new Dictionary (StringComparer.Ordinal); private List _usingElementCollection = new List (); private Schema _definingSchema; #endregion #region Public Methods /// /// Construct the LookUp table /// public AliasResolver(Schema schema) { _definingSchema = schema; // If there is an alias defined for the defining schema, // add it to the look up table if (!string.IsNullOrEmpty(schema.Alias)) { _aliasToNamespaceMap.Add(schema.Alias, schema.Namespace); } } ////// Add a ReferenceSchema to the table /// /// the ReferenceSchema to add public void Add(UsingElement usingElement) { Debug.Assert(usingElement != null, "refSchema parameter is null"); string newNamespace = usingElement.NamespaceName; string newAlias = usingElement.Alias; // Check whether the alias is a reserved keyword if (CheckForSystemNamespace(usingElement, newAlias, NameKind.Alias)) { newAlias = null; } //Check whether the namespace is a reserved keyword if (CheckForSystemNamespace(usingElement, newNamespace, NameKind.Namespace)) { newNamespace = null; } // see if the alias has already been used if (newAlias != null && _aliasToNamespaceMap.ContainsKey(newAlias)) { // it has, issue an error and make sure we don't try to add it usingElement.AddError(ErrorCode.AlreadyDefined, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.AliasNameIsAlreadyDefined(newAlias)); newAlias = null; } // Its okay if they add the same namespace twice, until they have different alias // if there's an alias, add it. if (newAlias != null) { _aliasToNamespaceMap.Add(newAlias, newNamespace); _usingElementCollection.Add(usingElement); } } ////// Get the Schema(s) a namespace or alias might refer to /// returned schemas may be null is called before or during Schema Resolution /// /// the name to look up ///array of schemas (0 length if no schemas match name public bool TryResolveAlias(string alias, out string namespaceName) { Debug.Assert(!String.IsNullOrEmpty(alias), "alias must never be null"); // Check if there is an alias defined with this name return _aliasToNamespaceMap.TryGetValue(alias, out namespaceName); } ////// Resolves all the namespace specified in the using elements in this schema /// public void ResolveNamespaces() { foreach (UsingElement usingElement in _usingElementCollection) { if (!_definingSchema.SchemaManager.IsValidNamespaceName(usingElement.NamespaceName)) { usingElement.AddError(ErrorCode.InvalidNamespaceInUsing, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.InvalidNamespaceInUsing(usingElement.NamespaceName)); } } } #endregion #region Private Methods ////// Check if the given name is a reserved keyword. if yes, add appropriate error to the refschema /// /// /// /// ///private bool CheckForSystemNamespace(UsingElement refSchema, string name, NameKind nameKind) { Debug.Assert(_definingSchema.ProviderManifest != null, "Since we don't allow using elements in provider manifest, provider manifest can never be null"); // We need to check for system namespace if (EdmItemCollection.IsSystemNamespace(_definingSchema.ProviderManifest, name)) { if (nameKind == NameKind.Alias) { refSchema.AddError(ErrorCode.CannotUseSystemNamespaceAsAlias, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.CannotUseSystemNamespaceAsAlias(name)); } else { refSchema.AddError(ErrorCode.NeedNotUseSystemNamespaceInUsing, EdmSchemaErrorSeverity.Error, System.Data.Entity.Strings.NeedNotUseSystemNamespaceInUsing(name)); } return true; } return false; } #endregion #region Private Types /// /// Kind of Name /// private enum NameKind { ///It's an Alias Alias, ///It's a namespace Namespace, } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ExpressionLexer.cs
- ConnectionPointCookie.cs
- TimeIntervalCollection.cs
- InstalledVoice.cs
- Win32Interop.cs
- SimpleBitVector32.cs
- DataBoundControl.cs
- DataGridViewRowsAddedEventArgs.cs
- HttpModuleActionCollection.cs
- WindowsToolbar.cs
- WsdlInspector.cs
- FieldMetadata.cs
- DataGridViewBindingCompleteEventArgs.cs
- XmlSerializationGeneratedCode.cs
- DataStreamFromComStream.cs
- PersonalizationProviderHelper.cs
- BooleanSwitch.cs
- ConfigUtil.cs
- CrossContextChannel.cs
- SurrogateSelector.cs
- DiagnosticTraceSchemas.cs
- UserNamePasswordServiceCredential.cs
- Msmq4SubqueuePoisonHandler.cs
- AutomationPropertyInfo.cs
- KeyNotFoundException.cs
- ObjectItemCollectionAssemblyCacheEntry.cs
- TemplateBindingExtensionConverter.cs
- FieldCollectionEditor.cs
- SiteMapPath.cs
- Light.cs
- Ops.cs
- BuildDependencySet.cs
- ViewManagerAttribute.cs
- HwndStylusInputProvider.cs
- WindowCollection.cs
- RecipientInfo.cs
- StrokeNode.cs
- Focus.cs
- KeyedCollection.cs
- OdbcEnvironment.cs
- SystemIPGlobalProperties.cs
- CompensationHandlingFilter.cs
- PageTrueTypeFont.cs
- RegexRunner.cs
- SocketInformation.cs
- RemoteWebConfigurationHost.cs
- BamlReader.cs
- DataControlCommands.cs
- CodeAssignStatement.cs
- MexHttpsBindingElement.cs
- XmlStringTable.cs
- Style.cs
- Int32RectValueSerializer.cs
- MultiPageTextView.cs
- fixedPageContentExtractor.cs
- ContextStack.cs
- FocusWithinProperty.cs
- securitycriticaldataformultiplegetandset.cs
- MatrixCamera.cs
- OdbcError.cs
- XmlAttributeAttribute.cs
- ConfigXmlReader.cs
- DecoderFallback.cs
- DataGridHeaderBorder.cs
- XmlSignatureProperties.cs
- MultiView.cs
- DoubleLinkList.cs
- IgnoreDeviceFilterElementCollection.cs
- QueryAsyncResult.cs
- ColorAnimation.cs
- TableDetailsRow.cs
- MissingSatelliteAssemblyException.cs
- LayoutUtils.cs
- Drawing.cs
- XmlLanguage.cs
- OpacityConverter.cs
- TimeIntervalCollection.cs
- PlacementWorkspace.cs
- ListDictionaryInternal.cs
- MsmqNonTransactedPoisonHandler.cs
- OdbcError.cs
- XmlILStorageConverter.cs
- ZipArchive.cs
- UnicodeEncoding.cs
- HtmlMeta.cs
- WebPartsSection.cs
- OrderByBuilder.cs
- PeerNearMe.cs
- DecoderFallbackWithFailureFlag.cs
- AstTree.cs
- Point3DCollection.cs
- AstNode.cs
- DataTablePropertyDescriptor.cs
- XmlDocumentType.cs
- XmlSchemaAppInfo.cs
- TcpHostedTransportConfiguration.cs
- EdgeModeValidation.cs
- MessageQueueInstaller.cs
- EventPrivateKey.cs
- SpStreamWrapper.cs