Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Configuration / System / Configuration / ConfigurationLockCollection.cs / 1305376 / ConfigurationLockCollection.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
using System;
using System.Configuration.Internal;
using System.Collections;
using System.Collections.Specialized;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Security.Permissions;
using System.Xml;
using System.Globalization;
using System.ComponentModel;
using System.Security;
using System.Text;
namespace System.Configuration {
public sealed class ConfigurationLockCollection : IEnumerable, ICollection {
private HybridDictionary internalDictionary;
private ArrayList internalArraylist;
private bool _bModified = false;
private bool _bExceptionList = false;
private string _ignoreName = String.Empty;
private ConfigurationElement _thisElement = null;
private ConfigurationLockCollectionType _lockType;
private string SeedList = String.Empty;
private const string LockAll = "*";
internal ConfigurationLockCollection(ConfigurationElement thisElement)
: this(thisElement, ConfigurationLockCollectionType.LockedAttributes) {
}
internal ConfigurationLockCollection(ConfigurationElement thisElement, ConfigurationLockCollectionType lockType)
: this(thisElement, lockType, String.Empty) {
}
internal ConfigurationLockCollection(ConfigurationElement thisElement, ConfigurationLockCollectionType lockType, string ignoreName)
: this(thisElement, lockType, ignoreName, null) {
}
internal ConfigurationLockCollection(ConfigurationElement thisElement, ConfigurationLockCollectionType lockType,
string ignoreName, ConfigurationLockCollection parentCollection) {
_thisElement = thisElement;
_lockType = lockType;
internalDictionary = new HybridDictionary();
internalArraylist = new ArrayList();
_bModified = false;
_bExceptionList = _lockType == ConfigurationLockCollectionType.LockedExceptionList ||
_lockType == ConfigurationLockCollectionType.LockedElementsExceptionList;
_ignoreName = ignoreName;
if (parentCollection != null) {
foreach (string key in parentCollection) // seed the new collection
{
Add(key, ConfigurationValueFlags.Inherited); // add the local copy
if (_bExceptionList) {
if (SeedList.Length != 0)
SeedList += ",";
SeedList += key;
}
}
}
}
internal void ClearSeedList()
{
SeedList = String.Empty;
}
internal ConfigurationLockCollectionType LockType {
get { return _lockType; }
}
public void Add(string name) {
if (((_thisElement.ItemLocked & ConfigurationValueFlags.Locked) != 0) &&
((_thisElement.ItemLocked & ConfigurationValueFlags.Inherited) != 0)) {
throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_attribute_locked, name));
}
ConfigurationValueFlags flags = ConfigurationValueFlags.Modified;
string attribToLockTrim = name.Trim();
ConfigurationProperty propToLock = _thisElement.Properties[attribToLockTrim];
if (propToLock == null && attribToLockTrim != LockAll) {
ConfigurationElementCollection collection = _thisElement as ConfigurationElementCollection;
if (collection == null && _thisElement.Properties.DefaultCollectionProperty != null) { // this is not a collection but it may contain a default collection
collection = _thisElement[_thisElement.Properties.DefaultCollectionProperty] as ConfigurationElementCollection;
}
if (collection == null ||
_lockType == ConfigurationLockCollectionType.LockedAttributes || // If the collection type is not element then the lock is bogus
_lockType == ConfigurationLockCollectionType.LockedExceptionList) {
_thisElement.ReportInvalidLock(attribToLockTrim, _lockType, null, null);
}
else if (!collection.IsLockableElement(attribToLockTrim)) {
_thisElement.ReportInvalidLock(attribToLockTrim, _lockType, null, collection.LockableElements);
}
}
else { // the lock is in the property bag but is it the correct type?
if (propToLock != null && propToLock.IsRequired)
throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_required_attribute_lock_attempt, propToLock.Name));
if (attribToLockTrim != LockAll) {
if ((_lockType == ConfigurationLockCollectionType.LockedElements) ||
(_lockType == ConfigurationLockCollectionType.LockedElementsExceptionList)) {
// If it is an element then it must be derived from ConfigurationElement
if (!typeof(ConfigurationElement).IsAssignableFrom(propToLock.Type)) {
_thisElement.ReportInvalidLock(attribToLockTrim, _lockType, null, null);
}
}
else {
// if it is a property then it cannot be derived from ConfigurationElement
if (typeof(ConfigurationElement).IsAssignableFrom(propToLock.Type)) {
_thisElement.ReportInvalidLock(attribToLockTrim, _lockType, null, null);
}
}
}
}
if (internalDictionary.Contains(name)) {
flags = ConfigurationValueFlags.Modified | (ConfigurationValueFlags)internalDictionary[name];
internalDictionary.Remove(name); // not from parent
internalArraylist.Remove(name);
}
internalDictionary.Add(name, flags); // not from parent
internalArraylist.Add(name);
_bModified = true;
}
internal void Add(string name, ConfigurationValueFlags flags) {
if ((flags != ConfigurationValueFlags.Inherited) && (internalDictionary.Contains(name))) {
// the user has an item declared as locked below a level where it is already locked
// keep enough info so we can write out the lock if they save in modified mode
flags = ConfigurationValueFlags.Modified | (ConfigurationValueFlags)internalDictionary[name];
internalDictionary.Remove(name);
internalArraylist.Remove(name);
}
internalDictionary.Add(name, flags); // not from parent
internalArraylist.Add(name);
}
internal bool DefinedInParent(string name) {
if (name == null)
return false;
if (_bExceptionList)
{
string ParentListEnclosed = "," + SeedList + ",";
if (name.Equals(_ignoreName) || ParentListEnclosed.IndexOf("," + name + ",", StringComparison.Ordinal) >= 0) {
return true;
}
}
return (internalDictionary.Contains(name) &&
((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Inherited) != 0);
}
internal bool IsValueModified(string name) {
return (internalDictionary.Contains(name) &&
((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Modified) != 0);
}
internal void RemoveInheritedLocks() {
StringCollection removeList = new StringCollection();
foreach (string key in this) {
if (DefinedInParent(key)) {
removeList.Add(key);
}
}
foreach (string key in removeList) {
internalDictionary.Remove(key);
internalArraylist.Remove(key);
}
}
public void Remove(string name) {
if (!internalDictionary.Contains(name)) {
throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_collection_entry_not_found, name));
}
// in a locked list you cannot remove items that were locked in the parent
// in an exception list this is legal because it makes the list more restrictive
if (_bExceptionList == false &&
((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Inherited) != 0) {
if (((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Modified) != 0) {
// allow the local one to be "removed" so it won't write out but throw if they try and remove
// one that is only inherited
ConfigurationValueFlags flags = (ConfigurationValueFlags)internalDictionary[name];
flags &= ~ConfigurationValueFlags.Modified;
internalDictionary[name] = flags;
_bModified = true;
return;
}
else {
throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_attribute_locked, name));
}
}
internalDictionary.Remove(name);
internalArraylist.Remove(name);
_bModified = true;
}
public IEnumerator GetEnumerator() {
return internalArraylist.GetEnumerator();
}
internal void ClearInternal(bool useSeedIfAvailble) {
ArrayList removeList = new ArrayList();
foreach (DictionaryEntry de in internalDictionary) {
if ((((ConfigurationValueFlags)de.Value & ConfigurationValueFlags.Inherited) == 0)
|| _bExceptionList == true) {
removeList.Add(de.Key);
}
}
foreach (object removeKey in removeList) {
internalDictionary.Remove(removeKey);
internalArraylist.Remove(removeKey);
}
// Clearing an Exception list really means revert to parent
if (useSeedIfAvailble && !String.IsNullOrEmpty(SeedList)) {
string[] Keys = SeedList.Split(new char[] { ',' });
foreach (string key in Keys) {
Add(key, ConfigurationValueFlags.Inherited); //
}
}
_bModified = true;
}
public void Clear() {
ClearInternal(true);
}
public bool Contains(string name) {
if (_bExceptionList && name.Equals(_ignoreName)) {
return true;
}
return internalDictionary.Contains(name);
}
public int Count {
get {
return internalDictionary.Count;
}
}
public bool IsSynchronized {
get {
return false;
}
}
public object SyncRoot {
get {
return this;
}
}
public void CopyTo(string[] array, int index) {
((ICollection)this).CopyTo(array, index);
}
void ICollection.CopyTo(Array array, int index) {
internalArraylist.CopyTo(array, index);
}
public bool IsModified {
get {
return _bModified;
}
}
internal void ResetModified() {
_bModified = false;
}
public bool IsReadOnly(string name) {
if (!internalDictionary.Contains(name)) {
throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_collection_entry_not_found, name));
}
return (bool)(((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Inherited) != 0);
}
internal bool ExceptionList {
get {
return _bExceptionList;
}
}
public string AttributeList {
get {
StringBuilder sb;
sb = new StringBuilder();
foreach (DictionaryEntry de in internalDictionary) {
if (sb.Length != 0) {
sb.Append(',');
}
sb.Append(de.Key);
}
return sb.ToString();
}
}
public void SetFromList(string attributeList) {
string[] splits = attributeList.Split(new char[] { ',', ';', ':' });
Clear();
foreach (string name in splits) {
string attribTrim = name.Trim();
if (!Contains(attribTrim)) {
Add(attribTrim);
}
}
}
public bool HasParentElements {
get {
// return true if there is at least one element that was defined in the parent
bool result = false;
// Check to see if the exception list is empty as a result of a merge from config
// If so the there were some parent elements because empty string is invalid in config.
// and the only way to get an empty list is for the merged config to have no elements
// in common.
if (ExceptionList && internalDictionary.Count == 0 && !String.IsNullOrEmpty(SeedList))
return true;
foreach (DictionaryEntry de in internalDictionary) {
if ((bool)(((ConfigurationValueFlags)de.Value & ConfigurationValueFlags.Inherited) != 0)) {
result = true;
break;
}
}
return result;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
using System;
using System.Configuration.Internal;
using System.Collections;
using System.Collections.Specialized;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Security.Permissions;
using System.Xml;
using System.Globalization;
using System.ComponentModel;
using System.Security;
using System.Text;
namespace System.Configuration {
public sealed class ConfigurationLockCollection : IEnumerable, ICollection {
private HybridDictionary internalDictionary;
private ArrayList internalArraylist;
private bool _bModified = false;
private bool _bExceptionList = false;
private string _ignoreName = String.Empty;
private ConfigurationElement _thisElement = null;
private ConfigurationLockCollectionType _lockType;
private string SeedList = String.Empty;
private const string LockAll = "*";
internal ConfigurationLockCollection(ConfigurationElement thisElement)
: this(thisElement, ConfigurationLockCollectionType.LockedAttributes) {
}
internal ConfigurationLockCollection(ConfigurationElement thisElement, ConfigurationLockCollectionType lockType)
: this(thisElement, lockType, String.Empty) {
}
internal ConfigurationLockCollection(ConfigurationElement thisElement, ConfigurationLockCollectionType lockType, string ignoreName)
: this(thisElement, lockType, ignoreName, null) {
}
internal ConfigurationLockCollection(ConfigurationElement thisElement, ConfigurationLockCollectionType lockType,
string ignoreName, ConfigurationLockCollection parentCollection) {
_thisElement = thisElement;
_lockType = lockType;
internalDictionary = new HybridDictionary();
internalArraylist = new ArrayList();
_bModified = false;
_bExceptionList = _lockType == ConfigurationLockCollectionType.LockedExceptionList ||
_lockType == ConfigurationLockCollectionType.LockedElementsExceptionList;
_ignoreName = ignoreName;
if (parentCollection != null) {
foreach (string key in parentCollection) // seed the new collection
{
Add(key, ConfigurationValueFlags.Inherited); // add the local copy
if (_bExceptionList) {
if (SeedList.Length != 0)
SeedList += ",";
SeedList += key;
}
}
}
}
internal void ClearSeedList()
{
SeedList = String.Empty;
}
internal ConfigurationLockCollectionType LockType {
get { return _lockType; }
}
public void Add(string name) {
if (((_thisElement.ItemLocked & ConfigurationValueFlags.Locked) != 0) &&
((_thisElement.ItemLocked & ConfigurationValueFlags.Inherited) != 0)) {
throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_attribute_locked, name));
}
ConfigurationValueFlags flags = ConfigurationValueFlags.Modified;
string attribToLockTrim = name.Trim();
ConfigurationProperty propToLock = _thisElement.Properties[attribToLockTrim];
if (propToLock == null && attribToLockTrim != LockAll) {
ConfigurationElementCollection collection = _thisElement as ConfigurationElementCollection;
if (collection == null && _thisElement.Properties.DefaultCollectionProperty != null) { // this is not a collection but it may contain a default collection
collection = _thisElement[_thisElement.Properties.DefaultCollectionProperty] as ConfigurationElementCollection;
}
if (collection == null ||
_lockType == ConfigurationLockCollectionType.LockedAttributes || // If the collection type is not element then the lock is bogus
_lockType == ConfigurationLockCollectionType.LockedExceptionList) {
_thisElement.ReportInvalidLock(attribToLockTrim, _lockType, null, null);
}
else if (!collection.IsLockableElement(attribToLockTrim)) {
_thisElement.ReportInvalidLock(attribToLockTrim, _lockType, null, collection.LockableElements);
}
}
else { // the lock is in the property bag but is it the correct type?
if (propToLock != null && propToLock.IsRequired)
throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_required_attribute_lock_attempt, propToLock.Name));
if (attribToLockTrim != LockAll) {
if ((_lockType == ConfigurationLockCollectionType.LockedElements) ||
(_lockType == ConfigurationLockCollectionType.LockedElementsExceptionList)) {
// If it is an element then it must be derived from ConfigurationElement
if (!typeof(ConfigurationElement).IsAssignableFrom(propToLock.Type)) {
_thisElement.ReportInvalidLock(attribToLockTrim, _lockType, null, null);
}
}
else {
// if it is a property then it cannot be derived from ConfigurationElement
if (typeof(ConfigurationElement).IsAssignableFrom(propToLock.Type)) {
_thisElement.ReportInvalidLock(attribToLockTrim, _lockType, null, null);
}
}
}
}
if (internalDictionary.Contains(name)) {
flags = ConfigurationValueFlags.Modified | (ConfigurationValueFlags)internalDictionary[name];
internalDictionary.Remove(name); // not from parent
internalArraylist.Remove(name);
}
internalDictionary.Add(name, flags); // not from parent
internalArraylist.Add(name);
_bModified = true;
}
internal void Add(string name, ConfigurationValueFlags flags) {
if ((flags != ConfigurationValueFlags.Inherited) && (internalDictionary.Contains(name))) {
// the user has an item declared as locked below a level where it is already locked
// keep enough info so we can write out the lock if they save in modified mode
flags = ConfigurationValueFlags.Modified | (ConfigurationValueFlags)internalDictionary[name];
internalDictionary.Remove(name);
internalArraylist.Remove(name);
}
internalDictionary.Add(name, flags); // not from parent
internalArraylist.Add(name);
}
internal bool DefinedInParent(string name) {
if (name == null)
return false;
if (_bExceptionList)
{
string ParentListEnclosed = "," + SeedList + ",";
if (name.Equals(_ignoreName) || ParentListEnclosed.IndexOf("," + name + ",", StringComparison.Ordinal) >= 0) {
return true;
}
}
return (internalDictionary.Contains(name) &&
((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Inherited) != 0);
}
internal bool IsValueModified(string name) {
return (internalDictionary.Contains(name) &&
((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Modified) != 0);
}
internal void RemoveInheritedLocks() {
StringCollection removeList = new StringCollection();
foreach (string key in this) {
if (DefinedInParent(key)) {
removeList.Add(key);
}
}
foreach (string key in removeList) {
internalDictionary.Remove(key);
internalArraylist.Remove(key);
}
}
public void Remove(string name) {
if (!internalDictionary.Contains(name)) {
throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_collection_entry_not_found, name));
}
// in a locked list you cannot remove items that were locked in the parent
// in an exception list this is legal because it makes the list more restrictive
if (_bExceptionList == false &&
((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Inherited) != 0) {
if (((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Modified) != 0) {
// allow the local one to be "removed" so it won't write out but throw if they try and remove
// one that is only inherited
ConfigurationValueFlags flags = (ConfigurationValueFlags)internalDictionary[name];
flags &= ~ConfigurationValueFlags.Modified;
internalDictionary[name] = flags;
_bModified = true;
return;
}
else {
throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_attribute_locked, name));
}
}
internalDictionary.Remove(name);
internalArraylist.Remove(name);
_bModified = true;
}
public IEnumerator GetEnumerator() {
return internalArraylist.GetEnumerator();
}
internal void ClearInternal(bool useSeedIfAvailble) {
ArrayList removeList = new ArrayList();
foreach (DictionaryEntry de in internalDictionary) {
if ((((ConfigurationValueFlags)de.Value & ConfigurationValueFlags.Inherited) == 0)
|| _bExceptionList == true) {
removeList.Add(de.Key);
}
}
foreach (object removeKey in removeList) {
internalDictionary.Remove(removeKey);
internalArraylist.Remove(removeKey);
}
// Clearing an Exception list really means revert to parent
if (useSeedIfAvailble && !String.IsNullOrEmpty(SeedList)) {
string[] Keys = SeedList.Split(new char[] { ',' });
foreach (string key in Keys) {
Add(key, ConfigurationValueFlags.Inherited); //
}
}
_bModified = true;
}
public void Clear() {
ClearInternal(true);
}
public bool Contains(string name) {
if (_bExceptionList && name.Equals(_ignoreName)) {
return true;
}
return internalDictionary.Contains(name);
}
public int Count {
get {
return internalDictionary.Count;
}
}
public bool IsSynchronized {
get {
return false;
}
}
public object SyncRoot {
get {
return this;
}
}
public void CopyTo(string[] array, int index) {
((ICollection)this).CopyTo(array, index);
}
void ICollection.CopyTo(Array array, int index) {
internalArraylist.CopyTo(array, index);
}
public bool IsModified {
get {
return _bModified;
}
}
internal void ResetModified() {
_bModified = false;
}
public bool IsReadOnly(string name) {
if (!internalDictionary.Contains(name)) {
throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_collection_entry_not_found, name));
}
return (bool)(((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Inherited) != 0);
}
internal bool ExceptionList {
get {
return _bExceptionList;
}
}
public string AttributeList {
get {
StringBuilder sb;
sb = new StringBuilder();
foreach (DictionaryEntry de in internalDictionary) {
if (sb.Length != 0) {
sb.Append(',');
}
sb.Append(de.Key);
}
return sb.ToString();
}
}
public void SetFromList(string attributeList) {
string[] splits = attributeList.Split(new char[] { ',', ';', ':' });
Clear();
foreach (string name in splits) {
string attribTrim = name.Trim();
if (!Contains(attribTrim)) {
Add(attribTrim);
}
}
}
public bool HasParentElements {
get {
// return true if there is at least one element that was defined in the parent
bool result = false;
// Check to see if the exception list is empty as a result of a merge from config
// If so the there were some parent elements because empty string is invalid in config.
// and the only way to get an empty list is for the merged config to have no elements
// in common.
if (ExceptionList && internalDictionary.Count == 0 && !String.IsNullOrEmpty(SeedList))
return true;
foreach (DictionaryEntry de in internalDictionary) {
if ((bool)(((ConfigurationValueFlags)de.Value & ConfigurationValueFlags.Inherited) != 0)) {
result = true;
break;
}
}
return result;
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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