Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / CompMod / System / Diagnostics / ListenerElementsCollection.cs / 1 / ListenerElementsCollection.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
using System.Configuration;
using System;
using System.Reflection;
using System.Globalization;
using System.Xml;
using System.Collections.Specialized;
using System.Collections;
using System.Security;
using System.Security.Permissions;
namespace System.Diagnostics {
[ConfigurationCollection(typeof(ListenerElement))]
internal class ListenerElementsCollection : ConfigurationElementCollection {
new public ListenerElement this[string name] {
get {
return (ListenerElement) BaseGet(name);
}
}
public override ConfigurationElementCollectionType CollectionType {
get {
return ConfigurationElementCollectionType.AddRemoveClearMap;
}
}
protected override ConfigurationElement CreateNewElement() {
return new ListenerElement(true);
}
protected override Object GetElementKey(ConfigurationElement element) {
return ((ListenerElement) element).Name;
}
public TraceListenerCollection GetRuntimeObject() {
TraceListenerCollection listeners = new TraceListenerCollection();
bool _isDemanded = false;
foreach(ListenerElement element in this) {
// At some point, we need to pull out adding/removing the 'default' DefaultTraceListener
// code from here in favor of adding/not-adding after we load the config (in TraceSource
// and in static Trace)
if (!_isDemanded && !element._isAddedByDefault) {
// Do a full damand; This will disable partially trusted code from hooking up listeners
new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Demand();
_isDemanded = true;
}
listeners.Add(element.GetRuntimeObject());
}
return listeners;
}
protected override void InitializeDefault() {
InitializeDefaultInternal();
}
internal void InitializeDefaultInternal() {
ListenerElement defaultListener = new ListenerElement(false);
defaultListener.Name = "Default";
defaultListener.TypeName = typeof(DefaultTraceListener).FullName;
defaultListener._isAddedByDefault = true;
this.BaseAdd(defaultListener);
}
protected override void BaseAdd(ConfigurationElement element) {
ListenerElement listenerElement = element as ListenerElement;
Debug.Assert((listenerElement != null), "adding elements other than ListenerElement to ListenerElementsCollection?");
if (listenerElement.Name.Equals("Default") && listenerElement.TypeName.Equals(typeof(DefaultTraceListener).FullName))
BaseAdd(listenerElement, false);
else
BaseAdd(listenerElement, ThrowOnDuplicate);
}
}
// This is the collection used by the sharedListener section. It is only slightly different from ListenerElementsCollection.
// The differences are that it does not allow remove and clear, and that the ListenerElements it creates do not allow
// references.
[ConfigurationCollection(typeof(ListenerElement), AddItemName = "add",
CollectionType = ConfigurationElementCollectionType.BasicMap)]
internal class SharedListenerElementsCollection : ListenerElementsCollection {
public override ConfigurationElementCollectionType CollectionType {
get {
return ConfigurationElementCollectionType.BasicMap;
}
}
protected override ConfigurationElement CreateNewElement() {
return new ListenerElement(false);
}
protected override string ElementName {
get {
return "add";
}
}
}
internal class ListenerElement : TypedElement {
private static readonly ConfigurationProperty _propFilter = new ConfigurationProperty("filter", typeof(FilterElement), null, ConfigurationPropertyOptions.None);
private static readonly ConfigurationProperty _propName = new ConfigurationProperty("name", typeof(string), null, ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey);
private static readonly ConfigurationProperty _propOutputOpts = new ConfigurationProperty("traceOutputOptions", typeof(TraceOptions), TraceOptions.None, ConfigurationPropertyOptions.None);
private ConfigurationProperty _propListenerTypeName;
private bool _allowReferences;
private Hashtable _attributes;
internal bool _isAddedByDefault;
static ListenerElement() {
}
public ListenerElement(bool allowReferences) : base(typeof(TraceListener)) {
_allowReferences = allowReferences;
ConfigurationPropertyOptions flags = ConfigurationPropertyOptions.None;
if (!_allowReferences)
flags |= ConfigurationPropertyOptions.IsRequired;
_propListenerTypeName = new ConfigurationProperty("type", typeof(string), null, flags);
_properties.Remove("type");
_properties.Add(_propListenerTypeName);
_properties.Add(_propFilter);
_properties.Add(_propName);
_properties.Add(_propOutputOpts);
}
public Hashtable Attributes {
get {
if (_attributes == null)
_attributes = new Hashtable(StringComparer.OrdinalIgnoreCase);
return _attributes;
}
}
[ConfigurationProperty("filter")]
public FilterElement Filter {
get {
return (FilterElement) this[_propFilter];
}
}
[ConfigurationProperty("name", IsRequired = true, IsKey = true)]
public string Name {
get {
return (string) this[_propName];
}
set {
this[_propName] = value;
}
}
[ConfigurationProperty("traceOutputOptions", DefaultValue = (TraceOptions) TraceOptions.None)]
public TraceOptions TraceOutputOptions {
get {
return (TraceOptions) this[_propOutputOpts];
}
// This is useful when the OM becomes public. In the meantime, this can be utilized via reflection
set {
this[_propOutputOpts] = value;
}
}
[ConfigurationProperty("type")]
public override string TypeName {
get {
return (string) this[_propListenerTypeName];
}
set {
this[_propListenerTypeName] = value;
}
}
public override bool Equals(object compareTo) {
if (this.Name.Equals("Default") && this.TypeName.Equals(typeof(DefaultTraceListener).FullName)) {
// This is a workaround to treat all DefaultTraceListener named 'Default' the same.
// This is needed for the Config.Save to work properly as otherwise config base layers
// above us would run into duplicate 'Default' listener element and perceive it as
// error.
ListenerElement compareToElem = compareTo as ListenerElement;
return (compareToElem != null) && compareToElem.Name.Equals("Default")
&& compareToElem.TypeName.Equals(typeof(DefaultTraceListener).FullName);
}
else
return base.Equals(compareTo);
}
public override int GetHashCode() {
return base.GetHashCode();
}
public TraceListener GetRuntimeObject() {
if (_runtimeObject != null)
return (TraceListener) _runtimeObject;
try {
string className = TypeName;
if (String.IsNullOrEmpty(className)) {
// Look it up in SharedListeners
Debug.Assert(_allowReferences, "_allowReferences must be true if type name is null");
if (_attributes != null || ElementInformation.Properties[_propFilter.Name].ValueOrigin == PropertyValueOrigin.SetHere || TraceOutputOptions != TraceOptions.None || !String.IsNullOrEmpty(InitData))
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_listener_cant_have_properties, Name));
if (DiagnosticsConfiguration.SharedListeners == null)
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_to_nonexistent_listener, Name));
ListenerElement sharedListener = DiagnosticsConfiguration.SharedListeners[Name];
if (sharedListener == null)
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_to_nonexistent_listener, Name));
else {
_runtimeObject = sharedListener.GetRuntimeObject();
return (TraceListener) _runtimeObject;
}
}
else {
// create a new one
TraceListener newListener = (TraceListener) BaseGetRuntimeObject();
newListener.initializeData = InitData;
newListener.Name = Name;
newListener.SetAttributes(Attributes);
newListener.TraceOutputOptions = TraceOutputOptions;
if ((Filter != null) && (Filter.TypeName != null) && (Filter.TypeName.Length != 0))
newListener.Filter = Filter.GetRuntimeObject();
_runtimeObject = newListener;
return newListener;
}
}
catch (ArgumentException e) {
throw new ConfigurationErrorsException(SR.GetString(SR.Could_not_create_listener, Name), e);
}
}
protected override bool OnDeserializeUnrecognizedAttribute(String name, String value) {
ConfigurationProperty _propDynamic = new ConfigurationProperty(name, typeof(string), value);
_properties.Add(_propDynamic);
base[_propDynamic] = value; // Add them to the property bag
Attributes.Add(name, value);
return true;
}
internal void ResetProperties()
{
// blow away any UnrecognizedAttributes that we have deserialized earlier
if (_attributes != null) {
_attributes.Clear();
_properties.Clear();
_properties.Add(_propListenerTypeName);
_properties.Add(_propFilter);
_properties.Add(_propName);
_properties.Add(_propOutputOpts);
}
}
internal TraceListener RefreshRuntimeObject(TraceListener listener) {
_runtimeObject = null;
try {
string className = TypeName;
if (String.IsNullOrEmpty(className)) {
// Look it up in SharedListeners and ask the sharedListener to refresh.
Debug.Assert(_allowReferences, "_allowReferences must be true if type name is null");
if (_attributes != null || ElementInformation.Properties[_propFilter.Name].ValueOrigin == PropertyValueOrigin.SetHere || TraceOutputOptions != TraceOptions.None || !String.IsNullOrEmpty(InitData))
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_listener_cant_have_properties, Name));
if (DiagnosticsConfiguration.SharedListeners == null)
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_to_nonexistent_listener, Name));
ListenerElement sharedListener = DiagnosticsConfiguration.SharedListeners[Name];
if (sharedListener == null)
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_to_nonexistent_listener, Name));
else {
_runtimeObject = sharedListener.RefreshRuntimeObject(listener);
return (TraceListener) _runtimeObject;
}
}
else {
// We're the element with the type and initializeData info. First see if those two are the same as they were.
// If not, create a whole new object, otherwise, just update the other properties.
if (Type.GetType(className) != listener.GetType() || InitData != listener.initializeData) {
// type or initdata changed
return GetRuntimeObject();
}
else {
listener.SetAttributes(Attributes);
listener.TraceOutputOptions = TraceOutputOptions;
if (ElementInformation.Properties[_propFilter.Name].ValueOrigin == PropertyValueOrigin.SetHere)
listener.Filter = Filter.RefreshRuntimeObject(listener.Filter);
else
listener.Filter = null;
_runtimeObject = listener;
return listener;
}
}
}
catch (ArgumentException e) {
throw new ConfigurationErrorsException(SR.GetString(SR.Could_not_create_listener, Name), e);
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
using System.Configuration;
using System;
using System.Reflection;
using System.Globalization;
using System.Xml;
using System.Collections.Specialized;
using System.Collections;
using System.Security;
using System.Security.Permissions;
namespace System.Diagnostics {
[ConfigurationCollection(typeof(ListenerElement))]
internal class ListenerElementsCollection : ConfigurationElementCollection {
new public ListenerElement this[string name] {
get {
return (ListenerElement) BaseGet(name);
}
}
public override ConfigurationElementCollectionType CollectionType {
get {
return ConfigurationElementCollectionType.AddRemoveClearMap;
}
}
protected override ConfigurationElement CreateNewElement() {
return new ListenerElement(true);
}
protected override Object GetElementKey(ConfigurationElement element) {
return ((ListenerElement) element).Name;
}
public TraceListenerCollection GetRuntimeObject() {
TraceListenerCollection listeners = new TraceListenerCollection();
bool _isDemanded = false;
foreach(ListenerElement element in this) {
// At some point, we need to pull out adding/removing the 'default' DefaultTraceListener
// code from here in favor of adding/not-adding after we load the config (in TraceSource
// and in static Trace)
if (!_isDemanded && !element._isAddedByDefault) {
// Do a full damand; This will disable partially trusted code from hooking up listeners
new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Demand();
_isDemanded = true;
}
listeners.Add(element.GetRuntimeObject());
}
return listeners;
}
protected override void InitializeDefault() {
InitializeDefaultInternal();
}
internal void InitializeDefaultInternal() {
ListenerElement defaultListener = new ListenerElement(false);
defaultListener.Name = "Default";
defaultListener.TypeName = typeof(DefaultTraceListener).FullName;
defaultListener._isAddedByDefault = true;
this.BaseAdd(defaultListener);
}
protected override void BaseAdd(ConfigurationElement element) {
ListenerElement listenerElement = element as ListenerElement;
Debug.Assert((listenerElement != null), "adding elements other than ListenerElement to ListenerElementsCollection?");
if (listenerElement.Name.Equals("Default") && listenerElement.TypeName.Equals(typeof(DefaultTraceListener).FullName))
BaseAdd(listenerElement, false);
else
BaseAdd(listenerElement, ThrowOnDuplicate);
}
}
// This is the collection used by the sharedListener section. It is only slightly different from ListenerElementsCollection.
// The differences are that it does not allow remove and clear, and that the ListenerElements it creates do not allow
// references.
[ConfigurationCollection(typeof(ListenerElement), AddItemName = "add",
CollectionType = ConfigurationElementCollectionType.BasicMap)]
internal class SharedListenerElementsCollection : ListenerElementsCollection {
public override ConfigurationElementCollectionType CollectionType {
get {
return ConfigurationElementCollectionType.BasicMap;
}
}
protected override ConfigurationElement CreateNewElement() {
return new ListenerElement(false);
}
protected override string ElementName {
get {
return "add";
}
}
}
internal class ListenerElement : TypedElement {
private static readonly ConfigurationProperty _propFilter = new ConfigurationProperty("filter", typeof(FilterElement), null, ConfigurationPropertyOptions.None);
private static readonly ConfigurationProperty _propName = new ConfigurationProperty("name", typeof(string), null, ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey);
private static readonly ConfigurationProperty _propOutputOpts = new ConfigurationProperty("traceOutputOptions", typeof(TraceOptions), TraceOptions.None, ConfigurationPropertyOptions.None);
private ConfigurationProperty _propListenerTypeName;
private bool _allowReferences;
private Hashtable _attributes;
internal bool _isAddedByDefault;
static ListenerElement() {
}
public ListenerElement(bool allowReferences) : base(typeof(TraceListener)) {
_allowReferences = allowReferences;
ConfigurationPropertyOptions flags = ConfigurationPropertyOptions.None;
if (!_allowReferences)
flags |= ConfigurationPropertyOptions.IsRequired;
_propListenerTypeName = new ConfigurationProperty("type", typeof(string), null, flags);
_properties.Remove("type");
_properties.Add(_propListenerTypeName);
_properties.Add(_propFilter);
_properties.Add(_propName);
_properties.Add(_propOutputOpts);
}
public Hashtable Attributes {
get {
if (_attributes == null)
_attributes = new Hashtable(StringComparer.OrdinalIgnoreCase);
return _attributes;
}
}
[ConfigurationProperty("filter")]
public FilterElement Filter {
get {
return (FilterElement) this[_propFilter];
}
}
[ConfigurationProperty("name", IsRequired = true, IsKey = true)]
public string Name {
get {
return (string) this[_propName];
}
set {
this[_propName] = value;
}
}
[ConfigurationProperty("traceOutputOptions", DefaultValue = (TraceOptions) TraceOptions.None)]
public TraceOptions TraceOutputOptions {
get {
return (TraceOptions) this[_propOutputOpts];
}
// This is useful when the OM becomes public. In the meantime, this can be utilized via reflection
set {
this[_propOutputOpts] = value;
}
}
[ConfigurationProperty("type")]
public override string TypeName {
get {
return (string) this[_propListenerTypeName];
}
set {
this[_propListenerTypeName] = value;
}
}
public override bool Equals(object compareTo) {
if (this.Name.Equals("Default") && this.TypeName.Equals(typeof(DefaultTraceListener).FullName)) {
// This is a workaround to treat all DefaultTraceListener named 'Default' the same.
// This is needed for the Config.Save to work properly as otherwise config base layers
// above us would run into duplicate 'Default' listener element and perceive it as
// error.
ListenerElement compareToElem = compareTo as ListenerElement;
return (compareToElem != null) && compareToElem.Name.Equals("Default")
&& compareToElem.TypeName.Equals(typeof(DefaultTraceListener).FullName);
}
else
return base.Equals(compareTo);
}
public override int GetHashCode() {
return base.GetHashCode();
}
public TraceListener GetRuntimeObject() {
if (_runtimeObject != null)
return (TraceListener) _runtimeObject;
try {
string className = TypeName;
if (String.IsNullOrEmpty(className)) {
// Look it up in SharedListeners
Debug.Assert(_allowReferences, "_allowReferences must be true if type name is null");
if (_attributes != null || ElementInformation.Properties[_propFilter.Name].ValueOrigin == PropertyValueOrigin.SetHere || TraceOutputOptions != TraceOptions.None || !String.IsNullOrEmpty(InitData))
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_listener_cant_have_properties, Name));
if (DiagnosticsConfiguration.SharedListeners == null)
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_to_nonexistent_listener, Name));
ListenerElement sharedListener = DiagnosticsConfiguration.SharedListeners[Name];
if (sharedListener == null)
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_to_nonexistent_listener, Name));
else {
_runtimeObject = sharedListener.GetRuntimeObject();
return (TraceListener) _runtimeObject;
}
}
else {
// create a new one
TraceListener newListener = (TraceListener) BaseGetRuntimeObject();
newListener.initializeData = InitData;
newListener.Name = Name;
newListener.SetAttributes(Attributes);
newListener.TraceOutputOptions = TraceOutputOptions;
if ((Filter != null) && (Filter.TypeName != null) && (Filter.TypeName.Length != 0))
newListener.Filter = Filter.GetRuntimeObject();
_runtimeObject = newListener;
return newListener;
}
}
catch (ArgumentException e) {
throw new ConfigurationErrorsException(SR.GetString(SR.Could_not_create_listener, Name), e);
}
}
protected override bool OnDeserializeUnrecognizedAttribute(String name, String value) {
ConfigurationProperty _propDynamic = new ConfigurationProperty(name, typeof(string), value);
_properties.Add(_propDynamic);
base[_propDynamic] = value; // Add them to the property bag
Attributes.Add(name, value);
return true;
}
internal void ResetProperties()
{
// blow away any UnrecognizedAttributes that we have deserialized earlier
if (_attributes != null) {
_attributes.Clear();
_properties.Clear();
_properties.Add(_propListenerTypeName);
_properties.Add(_propFilter);
_properties.Add(_propName);
_properties.Add(_propOutputOpts);
}
}
internal TraceListener RefreshRuntimeObject(TraceListener listener) {
_runtimeObject = null;
try {
string className = TypeName;
if (String.IsNullOrEmpty(className)) {
// Look it up in SharedListeners and ask the sharedListener to refresh.
Debug.Assert(_allowReferences, "_allowReferences must be true if type name is null");
if (_attributes != null || ElementInformation.Properties[_propFilter.Name].ValueOrigin == PropertyValueOrigin.SetHere || TraceOutputOptions != TraceOptions.None || !String.IsNullOrEmpty(InitData))
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_listener_cant_have_properties, Name));
if (DiagnosticsConfiguration.SharedListeners == null)
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_to_nonexistent_listener, Name));
ListenerElement sharedListener = DiagnosticsConfiguration.SharedListeners[Name];
if (sharedListener == null)
throw new ConfigurationErrorsException(SR.GetString(SR.Reference_to_nonexistent_listener, Name));
else {
_runtimeObject = sharedListener.RefreshRuntimeObject(listener);
return (TraceListener) _runtimeObject;
}
}
else {
// We're the element with the type and initializeData info. First see if those two are the same as they were.
// If not, create a whole new object, otherwise, just update the other properties.
if (Type.GetType(className) != listener.GetType() || InitData != listener.initializeData) {
// type or initdata changed
return GetRuntimeObject();
}
else {
listener.SetAttributes(Attributes);
listener.TraceOutputOptions = TraceOutputOptions;
if (ElementInformation.Properties[_propFilter.Name].ValueOrigin == PropertyValueOrigin.SetHere)
listener.Filter = Filter.RefreshRuntimeObject(listener.Filter);
else
listener.Filter = null;
_runtimeObject = listener;
return listener;
}
}
}
catch (ArgumentException e) {
throw new ConfigurationErrorsException(SR.GetString(SR.Could_not_create_listener, Name), e);
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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