e79aa3c0ed
Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4
144 lines
5.9 KiB
C#
144 lines
5.9 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="TransformerInfoCollection.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Web.Configuration {
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using System;
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using System.Configuration;
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using System.Collections;
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using System.Collections.Specialized;
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using System.Security.Principal;
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using System.Web;
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using System.Web.Compilation;
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using System.Web.Configuration;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.Util;
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using System.Xml;
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using System.Security.Permissions;
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[ConfigurationCollection(typeof(TransformerInfo))]
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public sealed class TransformerInfoCollection : ConfigurationElementCollection {
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private static ConfigurationPropertyCollection _properties;
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private Hashtable _transformerEntries;
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static TransformerInfoCollection() {
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_properties = new ConfigurationPropertyCollection();
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}
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/// <internalonly />
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protected override ConfigurationPropertyCollection Properties {
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get {
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return _properties;
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}
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}
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public TransformerInfo this[int index] {
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get {
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return (TransformerInfo)BaseGet(index);
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}
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set {
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if (BaseGet(index) != null) {
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BaseRemoveAt(index);
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}
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BaseAdd(index, value);
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}
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}
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public void Add(TransformerInfo transformerInfo) {
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BaseAdd(transformerInfo);
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}
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public void Clear() {
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BaseClear();
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}
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/// <internalonly />
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protected override ConfigurationElement CreateNewElement() {
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return new TransformerInfo();
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}
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public void Remove(string s) {
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BaseRemove(s);
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}
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public void RemoveAt(int index) {
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BaseRemoveAt(index);
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}
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/// <internalonly />
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protected override object GetElementKey(ConfigurationElement element) {
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return ((TransformerInfo)element).Name;
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}
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internal Hashtable GetTransformerEntries() {
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if (_transformerEntries == null) {
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lock (this) {
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if (_transformerEntries == null) {
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_transformerEntries = new Hashtable(StringComparer.OrdinalIgnoreCase);
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foreach (TransformerInfo ti in this) {
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Type transformerType = ConfigUtil.GetType(ti.Type, "type", ti);
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if (transformerType.IsSubclassOf(typeof(WebPartTransformer)) == false) {
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throw new ConfigurationErrorsException(
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SR.GetString(SR.Type_doesnt_inherit_from_type,
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ti.Type,
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typeof(WebPartTransformer).FullName),
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ti.ElementInformation.Properties["type"].Source,
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ti.ElementInformation.Properties["type"].LineNumber);
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}
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Type consumerType;
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Type providerType;
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try {
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consumerType = WebPartTransformerAttribute.GetConsumerType(transformerType);
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providerType = WebPartTransformerAttribute.GetProviderType(transformerType);
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}
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catch (Exception e) {
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throw new ConfigurationErrorsException(
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SR.GetString(SR.Transformer_attribute_error, e.Message),
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e,
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ti.ElementInformation.Properties["type"].Source,
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ti.ElementInformation.Properties["type"].LineNumber);
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}
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if (_transformerEntries.Count != 0) {
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foreach (DictionaryEntry entry in _transformerEntries) {
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Type existingTransformerType = (Type)entry.Value;
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// We know these methods will not throw, because for the type to be in the transformers
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// collection, we must have successfully gotten the types previously without an exception.
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Type existingConsumerType =
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WebPartTransformerAttribute.GetConsumerType(existingTransformerType);
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Type existingProviderType =
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WebPartTransformerAttribute.GetProviderType(existingTransformerType);
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if ((consumerType == existingConsumerType) && (providerType == existingProviderType)) {
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throw new ConfigurationErrorsException(
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SR.GetString(SR.Transformer_types_already_added,
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(string)entry.Key,
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ti.Name),
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ti.ElementInformation.Properties["type"].Source,
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ti.ElementInformation.Properties["type"].LineNumber);
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}
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}
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}
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_transformerEntries[ti.Name] = transformerType;
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}
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}
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}
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}
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//
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return _transformerEntries;
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}
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}
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}
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