Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / Host / Serialization / CodeDomComponentSerializationService.cs / 3 / CodeDomComponentSerializationService.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.ComponentModel.Design.Serialization {
using System.CodeDom;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Design;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Reflection;
using System.Resources;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
///
/// This class serializes a set of components or serializable objects into a
/// serialization store. The store can then be deserialized at a later
/// date. CodeDomComponentSerializationService differs from other serialization
/// schemes in that the serialization format is opaque, and it allows for
/// partial serialization of objects. For example, you can choose to
/// serialize only selected properties for an object.
///
public sealed class CodeDomComponentSerializationService : ComponentSerializationService {
private IServiceProvider _provider;
///
/// Creates a new CodeDomComponentSerializationService object.
///
public CodeDomComponentSerializationService() : this(null) {
}
///
/// Creates a new CodeDomComponentSerializationService object using the given
/// service provider to resolve services.
///
public CodeDomComponentSerializationService(IServiceProvider provider) {
_provider = provider;
}
///
/// This method creates a new SerializationStore. The serialization store can
/// be passed to any of the various Serialize methods to build up serialization
/// state for a group of objects.
///
public override SerializationStore CreateStore() {
return new CodeDomSerializationStore(_provider);
}
///
/// This method loads a SerializationStore and from the given
/// stream. This store can then be used to deserialize objects by passing it to
/// the various Deserialize methods.
///
public override SerializationStore LoadStore(Stream stream) {
if (stream == null) throw new ArgumentNullException("stream");
return CodeDomSerializationStore.Load(stream);
}
///
/// This method serializes the given object to the store. The store
/// can be used to serialize more than one object by calling this method
/// more than once.
///
public override void Serialize(SerializationStore store, object value) {
if (store == null) throw new ArgumentNullException("store");
if (value == null) throw new ArgumentNullException("value");
CodeDomSerializationStore cdStore = store as CodeDomSerializationStore;
if (cdStore == null) throw new InvalidOperationException(SR.GetString(SR.CodeDomComponentSerializationServiceUnknownStore));
cdStore.AddObject(value, false);
}
///
/// This method serializes the given object to the store. The store
/// can be used to serialize more than one object by calling this method
/// more than once.
///
public override void SerializeAbsolute(SerializationStore store, object value) {
if (store == null) throw new ArgumentNullException("store");
if (value == null) throw new ArgumentNullException("value");
CodeDomSerializationStore cdStore = store as CodeDomSerializationStore;
if (cdStore == null) throw new InvalidOperationException(SR.GetString(SR.CodeDomComponentSerializationServiceUnknownStore));
cdStore.AddObject(value, true);
}
///
/// This method serializes the given member on the given object. This method
/// can be invoked multiple times for the same object to build up a list of
/// serialized members within the serialization store. The member generally
/// has to be a property or an event.
///
public override void SerializeMember(SerializationStore store, object owningObject, MemberDescriptor member) {
if (store == null) throw new ArgumentNullException("store");
if (owningObject == null) throw new ArgumentNullException("owningObject");
if (member == null) throw new ArgumentNullException("member");
CodeDomSerializationStore cdStore = store as CodeDomSerializationStore;
if (cdStore == null) throw new InvalidOperationException(SR.GetString(SR.CodeDomComponentSerializationServiceUnknownStore));
cdStore.AddMember(owningObject, member, false);
}
///
/// This method serializes the given member on the given object,
/// but also serializes the member if it contains the default value.
/// Note that for some members, containing the default value and setting
/// the same value back to the member are different concepts. For example,
/// if a property inherits its value from a parent object if no local value
/// is set, setting the value back to the property can may not be what is desired.
/// SerializeMemberAbsolute takes this into account and would clear the state of
/// the property in this case.
///
public override void SerializeMemberAbsolute(SerializationStore store, object owningObject, MemberDescriptor member) {
if (store == null) throw new ArgumentNullException("store");
if (owningObject == null) throw new ArgumentNullException("owningObject");
if (member == null) throw new ArgumentNullException("member");
CodeDomSerializationStore cdStore = store as CodeDomSerializationStore;
if (cdStore == null) throw new InvalidOperationException(SR.GetString(SR.CodeDomComponentSerializationServiceUnknownStore));
cdStore.AddMember(owningObject, member, true);
}
///
/// This method deserializes the given store to produce a collection of
/// objects contained within it. If a container is provided, objects
/// that are created that implement IComponent will be added to the container.
///
public override ICollection Deserialize(SerializationStore store) {
if (store == null) throw new ArgumentNullException("store");
CodeDomSerializationStore cdStore = store as CodeDomSerializationStore;
if (cdStore == null) throw new InvalidOperationException(SR.GetString(SR.CodeDomComponentSerializationServiceUnknownStore));
return cdStore.Deserialize(_provider);
}
///
/// This method deserializes the given store to produce a collection of
/// objects contained within it. If a container is provided, objects
/// that are created that implement IComponent will be added to the container.
///
public override ICollection Deserialize(SerializationStore store, IContainer container) {
if (store == null) throw new ArgumentNullException("store");
if (container == null) throw new ArgumentNullException("container");
CodeDomSerializationStore cdStore = store as CodeDomSerializationStore;
if (cdStore == null) throw new InvalidOperationException(SR.GetString(SR.CodeDomComponentSerializationServiceUnknownStore));
return cdStore.Deserialize(_provider, container);
}
///
/// This method deserializes the given store, but rather than produce
/// new objects object, the data in the store is applied to an existing
/// set of objects that are taken from the provided container. This
/// allows the caller to pre-create an object however it sees fit. If
/// an object has deserialization state and the object is not named in
/// the set of existing objects, a new object will be created. If that
/// object also implements IComponent, it will be added to the given
/// container. Objects in the container must have names and types that
/// match objects in the serialization store in order for an existing
/// object to be used.
///
public override void DeserializeTo(SerializationStore store, IContainer container, bool validateRecycledTypes, bool applyDefaults) {
if (store == null) throw new ArgumentNullException("store");
if (container == null) throw new ArgumentNullException("container");
CodeDomSerializationStore cdStore = store as CodeDomSerializationStore;
if (cdStore == null) throw new InvalidOperationException(SR.GetString(SR.CodeDomComponentSerializationServiceUnknownStore));
cdStore.DeserializeTo(_provider, container, validateRecycledTypes, applyDefaults);
}
///
/// The SerializationStore class is an implementation-specific class that stores
/// serialization data for the component serialization service. The
/// service adds state to this serialization store. Once the store is
/// closed it can be saved to a stream. A serialization store can be
/// deserialized at a later date by the same type of serialization service.
/// SerializationStore implements the IDisposable interface such that Dispose
/// simply calls the Close method. Dispose is implemented as a private
/// interface to avoid confusion. The IDisposable pattern is provided
/// for languages that support a "using" syntax like C# and VB .NET.
///
[Serializable]
private sealed class CodeDomSerializationStore : SerializationStore, ISerializable {
#if DEBUG
private static TraceSwitch trace = new TraceSwitch("ComponentSerializationService", "Trace component serialization");
#endif
private const string _stateKey = "State";
private const string _nameKey = "Names";
private const string _assembliesKey = "Assemblies";
private const string _resourcesKey = "Resources";
private const string _shimKey = "Shim";
private const int _stateCode = 0;
private const int _stateCtx = 1;
private const int _stateProperties = 2;
private const int _stateResources = 3;
private const int _stateEvents = 4;
private const int _stateModifier = 5;
private MemoryStream _resourceStream = null;
// Transient fields only used during creation of the store
//
private Hashtable _objects;
private IServiceProvider _provider;
// These fields persist across the store
//
private ArrayList _objectNames;
private Hashtable _objectState;
private LocalResourceManager _resources;
private AssemblyName[] _assemblies;
private List _shimObjectNames;
// These fields are available after serialization or deserialization
//
private ICollection _errors;
///
/// Creates a new store.
///
internal CodeDomSerializationStore(IServiceProvider provider) {
_provider = provider;
_objects = new Hashtable();
_objectNames = new ArrayList();
_shimObjectNames = new List();
}
///
/// Used to deserialize ourselves from binary serialization.
///
private CodeDomSerializationStore(SerializationInfo info, StreamingContext context) {
_objectState = (Hashtable)info.GetValue(_stateKey, typeof(Hashtable));
_objectNames = (ArrayList)info.GetValue(_nameKey, typeof(ArrayList));
_assemblies = (AssemblyName[])info.GetValue(_assembliesKey, typeof(AssemblyName[]));
_shimObjectNames = (List)info.GetValue(_shimKey, typeof(List));
Hashtable h = (Hashtable)info.GetValue(_resourcesKey, typeof(Hashtable));
if (h != null) {
_resources = new LocalResourceManager(h);
}
}
///
/// Nested classes within us access this property to get
/// to our array of saved assembly names.
///
private AssemblyName[] AssemblyNames {
get {
return _assemblies;
}
}
///
/// If there were errors generated during serialization or deserialization of the store, they will be
/// added to this collection.
///
public override ICollection Errors {
get {
if (_errors == null) {
_errors = new object[0];
}
object[] errors = new object[_errors.Count];
_errors.CopyTo(errors, 0);
return errors;
}
}
///
/// Nested classes within us access this property to get
/// to our collection of resources.
///
private LocalResourceManager Resources {
get {
if (_resources == null) {
_resources = new LocalResourceManager();
}
return _resources;
}
}
///
/// Adds a new member serialization to our list of things to serialize.
///
internal void AddMember(object value, MemberDescriptor member, bool absolute) {
if (_objectState != null) throw new InvalidOperationException(SR.GetString(SR.CodeDomComponentSerializationServiceClosedStore));
ObjectData data = (ObjectData)_objects[value];
if (data == null) {
data = new ObjectData();
data.Name = GetObjectName(value);
data.Value = value;
_objects[value] = data;
_objectNames.Add(data.Name);
}
Trace("Adding object '{0}' ({1}:{2}) {3}", data.Name, data.Value.GetType().FullName, member.Name, (absolute ? "NORMAL" : "ABSOLUTE"));
data.Members.Add(new MemberData(member, absolute));
}
///
/// Adds a new object serialization to our list of things to serialize.
///
internal void AddObject(object value, bool absolute) {
if (_objectState != null) throw new InvalidOperationException(SR.GetString(SR.CodeDomComponentSerializationServiceClosedStore));
ObjectData data = (ObjectData)_objects[value];
if (data == null) {
data = new ObjectData();
data.Name = GetObjectName(value);
data.Value = value;
_objects[value] = data;
_objectNames.Add(data.Name);
}
Trace("Adding object '{0}' ({1}) {2}", data.Name, data.Value.GetType().FullName, (absolute ? "NORMAL" : "ABSOLUTE"));
data.EntireObject = true;
data.Absolute = absolute;
}
///
/// The Close method closes this store and prevents any objects
/// from being serialized into it. Once closed, the serialization store may be saved.
///
public override void Close() {
if (_objectState == null) {
Hashtable state = new Hashtable(_objects.Count);
DesignerSerializationManager manager = new DesignerSerializationManager(new LocalServices(this, _provider));
DesignerSerializationManager hostManager = _provider.GetService(typeof(IDesignerSerializationManager)) as DesignerSerializationManager;
if (hostManager != null) {
foreach(IDesignerSerializationProvider provider in hostManager.SerializationProviders) {
((IDesignerSerializationManager)manager).AddSerializationProvider(provider);
}
}
Trace("Closing Store: serializing {0} objects", _objects.Count);
using (manager.CreateSession()) {
// Walk through our objects and name them so the
// serialization manager knows what names we gave them.
foreach (ObjectData data in _objects.Values) {
((IDesignerSerializationManager)manager).SetName(data.Value, data.Name);
}
ComponentListCodeDomSerializer.Instance.Serialize(manager, _objects, state, _shimObjectNames);
_errors = manager.Errors;
}
// also serialize out resources if we have any
// we force this in order for undo to work correctly
if (_resources != null) {
Debug.Assert(_resourceStream == null, "Attempting to close a serialization store with already serialized resources");
if (_resourceStream == null) {
BinaryFormatter formatter = new BinaryFormatter();
_resourceStream = new MemoryStream();
formatter.Serialize(_resourceStream, _resources.Data);
}
}
Hashtable assemblies = new Hashtable(_objects.Count);
foreach(object obj in _objects.Keys) {
// Save off the assembly for this object
Assembly a = obj.GetType().Assembly;
assemblies[a] = null;
}
_assemblies = new AssemblyName[assemblies.Count];
int idx = 0;
foreach(Assembly a in assemblies.Keys) {
_assemblies[idx++] = a.GetName(true);
}
#if DEBUG
foreach(DictionaryEntry de in state) {
TraceCode((string)de.Key, de.Value);
}
#endif
_objectState = state;
_objects = null;
}
}
///
/// Deserializes the saved bits.
///
internal ICollection Deserialize(IServiceProvider provider) {
return Deserialize(provider, null, false, true, true);
}
///
/// Deserializes the saved bits.
///
internal ICollection Deserialize(IServiceProvider provider, IContainer container) {
return Deserialize(provider, container, false, true, true);
}
private ICollection Deserialize(IServiceProvider provider, IContainer container, bool recycleInstances, bool validateRecycledTypes, bool applyDefaults) {
PassThroughSerializationManager delegator = new PassThroughSerializationManager (new LocalDesignerSerializationManager(this, new LocalServices(this, provider)));
if (container != null) {
delegator.Manager.Container = container;
}
DesignerSerializationManager hostManager = provider.GetService(typeof(IDesignerSerializationManager)) as DesignerSerializationManager;
if (hostManager != null) {
foreach(IDesignerSerializationProvider serProvider in hostManager.SerializationProviders) {
((IDesignerSerializationManager)delegator.Manager).AddSerializationProvider(serProvider);
}
}
// RecycleInstances is used so that we re-use objects already in the
// container. PreserveNames is used raise errors in the case of
// duplicate names. We only care about name preservation when
// we are recycling instances. Otherwise, we'd prefer to create
// objects with different names.
//
delegator.Manager.RecycleInstances = recycleInstances;
delegator.Manager.PreserveNames = recycleInstances;
delegator.Manager.ValidateRecycledTypes = validateRecycledTypes;
ArrayList objects = null;
// recreate resouces
if (_resourceStream != null) {
BinaryFormatter formatter = new BinaryFormatter();
_resourceStream.Seek(0, SeekOrigin.Begin);
Hashtable resources = formatter.Deserialize(_resourceStream) as Hashtable;
_resources = new LocalResourceManager(resources);
}
if (!recycleInstances) {
objects = new ArrayList(_objectNames.Count);
}
Trace("Deserializing {0} objects, recycling instances: {1}", _objectState.Count, recycleInstances);
using (delegator.Manager.CreateSession()) {
// before we deserialize, setup any references to components we faked during serialization
if (_shimObjectNames.Count > 0) {
List names = _shimObjectNames;
IDesignerSerializationManager dsm = delegator as IDesignerSerializationManager;
if (dsm != null && container != null) {
foreach(string compName in names) {
object instance = container.Components[compName];
if (instance != null && dsm.GetInstance(compName) == null) {
dsm.SetName(instance, compName);
}
}
}
}
ComponentListCodeDomSerializer.Instance.Deserialize(delegator, _objectState, _objectNames, applyDefaults);
if (!recycleInstances) {
foreach(string name in _objectNames) {
object instance = ((IDesignerSerializationManager)delegator.Manager).GetInstance(name);
Debug.Assert(instance != null, "Failed to deserialize object " + name);
if (instance != null) {
objects.Add(instance);
}
}
}
_errors = delegator.Manager.Errors;
}
return objects;
}
///
/// Deserializes the saved bits.
///
internal void DeserializeTo(IServiceProvider provider, IContainer container, bool validateRecycledTypes, bool applyDefaults) {
Deserialize(provider, container, true, validateRecycledTypes, applyDefaults);
}
///
/// Gets a name for this object. It first tries the object's site, if it exists,
/// and otherwise fabricates a unique name.
///
private string GetObjectName(object value) {
IComponent comp = value as IComponent;
if (comp != null) {
ISite site = comp.Site;
if (site != null) {
INestedSite nestedSite = site as INestedSite;
if (nestedSite != null && !string.IsNullOrEmpty(nestedSite.FullName)) {
return nestedSite.FullName;
}
else if (!string.IsNullOrEmpty(site.Name)) {
return site.Name;
}
}
}
Guid guid = Guid.NewGuid();
string guidStr = guid.ToString();
guidStr = guidStr.Replace("-", "_");
return string.Format(CultureInfo.CurrentCulture, "object_{0}", guidStr);
}
///
/// Loads our state from a stream.
///
internal static CodeDomSerializationStore Load(Stream stream) {
BinaryFormatter f = new BinaryFormatter();
return (CodeDomSerializationStore)f.Deserialize(stream);
}
///
/// The Save method saves the store to the given stream. If the store
/// is open, Save will automatically close it for you. You
/// can call save as many times as you wish to save the store
/// to different streams.
///
public override void Save(Stream stream) {
Close();
BinaryFormatter f = new BinaryFormatter();
f.Serialize(stream, this);
}
[Conditional("DEBUG")]
internal static void Trace(string message, params object[] args) {
#if DEBUG
string msg = string.Format(CultureInfo.CurrentCulture, "ComponentSerialization: " + message, args);
Debug.WriteLineIf(trace.TraceVerbose, msg);
#endif
}
#if DEBUG
internal static void TraceCode(string name, object code) {
if (code == null || !trace.TraceVerbose) {
return;
}
// The code is stored as the first slot in an array.
object[] state = (object[])code;
code = state[_stateCode];
if (code == null) {
return;
}
#pragma warning disable 618
System.CodeDom.Compiler.ICodeGenerator codeGenerator = new Microsoft.CSharp.CSharpCodeProvider().CreateGenerator();
#pragma warning restore 618
StringWriter sw = new StringWriter(CultureInfo.InvariantCulture);
Trace("Stored CodeDom for {0}: ", name);
Debug.Indent();
if (code is CodeTypeDeclaration) {
codeGenerator.GenerateCodeFromType((CodeTypeDeclaration)code, sw, null);
}
else if (code is CodeStatementCollection) {
CodeStatementCollection statements = (CodeStatementCollection)code;
foreach(CodeStatement statement in statements) {
codeGenerator.GenerateCodeFromStatement(statement, sw, null);
}
}
else if (code is CodeStatement) {
codeGenerator.GenerateCodeFromStatement((CodeStatement)code, sw, null);
}
else if (code is CodeExpression) {
codeGenerator.GenerateCodeFromExpression((CodeExpression)code, sw, null);
}
else {
sw.Write("Unknown code type: " + code.GetType().Name);
sw.Write("\r\n");
}
// spit this line by line so it respects the indent.
//
StringReader sr = new StringReader(sw.ToString());
for (string ln = sr.ReadLine(); ln != null;ln = sr.ReadLine()) {
Debug.WriteLine(ln);
}
Debug.Unindent();
}
#endif
///
/// Implements the save part of ISerializable.
///
void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context) {
Hashtable resources = null;
if (_resources != null) {
resources = _resources.Data;
}
info.AddValue(_stateKey, _objectState);
info.AddValue(_nameKey, _objectNames);
info.AddValue(_assembliesKey, _assemblies);
info.AddValue(_resourcesKey, resources);
info.AddValue(_shimKey, _shimObjectNames);
}
///
/// This is a simple code dom serializer that serializes a set of objects as a unit.
///
private class ComponentListCodeDomSerializer : CodeDomSerializer {
internal static ComponentListCodeDomSerializer Instance = new ComponentListCodeDomSerializer();
private Hashtable _statementsTable;
Dictionary _expressions;
private Hashtable _objectState; // only used during deserialization
private bool applyDefaults = true;
private Hashtable _nameResolveGuard = new Hashtable();
public override object Deserialize(IDesignerSerializationManager manager, object state) {
throw new NotSupportedException();
}
private void PopulateCompleteStatements(object data, string name, CodeStatementCollection completeStatements) {
CodeStatementCollection statements;
CodeStatement statement;
CodeExpression expression;
if ((statements = data as CodeStatementCollection) != null) {
completeStatements.AddRange(statements);
}
else if ((statement = data as CodeStatement) != null) {
completeStatements.Add(statement);
}
else if ((expression = data as CodeExpression) != null) {
// we handle expressions a little differently
// since they don't have a LHS or RHS they won't show up
// correctly in the statement table. We will deserialize
// them explicitly.
ArrayList exps = null;
if (_expressions.ContainsKey(name)) {
exps = _expressions[name];
}
if (exps == null) {
exps = new ArrayList();
_expressions[name] = exps;
}
exps.Add(expression);
}
else {
Debug.Fail("No case for " + data.GetType().Name);
}
}
///
/// Deserializes the given object state. The results are contained within the
/// serialization manager's name table. The objectNames list is used to
/// deserialize in the proper order, as objectState is unordered.
///
internal void Deserialize(IDesignerSerializationManager manager, IDictionary objectState, IList objectNames, bool applyDefaults) {
CodeStatementCollection completeStatements = new CodeStatementCollection();
_expressions = new Dictionary();
this.applyDefaults = applyDefaults;
foreach (string name in objectNames) {
object[] state = (object[]) objectState[name];
if (state != null) {
if (state[_stateCode] != null) {
PopulateCompleteStatements(state[_stateCode], name, completeStatements);
}
if (state[_stateCtx] != null) {
PopulateCompleteStatements(state[_stateCtx], name, completeStatements);
}
}
}
CodeStatementCollection mappedStatements = new CodeStatementCollection();
CodeMethodMap methodMap = new CodeMethodMap(mappedStatements, null);
methodMap.Add(completeStatements);
methodMap.Combine();
_statementsTable = new Hashtable();
// generate statement table keyed on component name
CodeDomSerializerBase.FillStatementTable(manager, _statementsTable, mappedStatements);
// We need to also ensure that for every entry in the statement table
// we have a corresponding entry in objectNames. Otherwise, we won't
// deserialize completely.
ArrayList completeNames = new ArrayList(objectNames);
foreach (string mappedKey in _statementsTable.Keys) {
if (!completeNames.Contains(mappedKey)) {
completeNames.Add(mappedKey);
}
}
_objectState = new Hashtable(objectState.Keys.Count);
foreach(DictionaryEntry de in objectState) {
_objectState.Add(de.Key, de.Value);
}
ResolveNameEventHandler resolveNameHandler = new ResolveNameEventHandler(this.OnResolveName);
manager.ResolveName += resolveNameHandler;
try {
foreach (string name in completeNames) {
ResolveName(manager, name, true);
}
}
finally {
_objectState = null;
manager.ResolveName -= resolveNameHandler;
}
}
private void OnResolveName(object sender, ResolveNameEventArgs e) {
//note: this recursionguard does not fix the problem, but rathar avoids
//a stack overflow which will bring down VS and cause loss of data.
if (_nameResolveGuard.ContainsKey(e.Name)) {
return;
}
_nameResolveGuard.Add(e.Name, true);
try {
IDesignerSerializationManager manager = (IDesignerSerializationManager)sender;
if (ResolveName(manager, e.Name, false)) {
e.Value = manager.GetInstance(e.Name);
}
}
finally {
_nameResolveGuard.Remove(e.Name);
}
}
private void DeserializeDefaultProperties(IDesignerSerializationManager manager, string name, object state)
{
// Next, default properties, but only if we successfully
// resolved.
if (state != null && applyDefaults) {
object comp = manager.GetInstance(name);
if (comp != null) {
PropertyDescriptorCollection props = TypeDescriptor.GetProperties(comp);
string[] defProps = (string[])state;
MemberRelationshipService relationships = manager.GetService(typeof(MemberRelationshipService)) as MemberRelationshipService;
foreach(string propName in defProps) {
PropertyDescriptor prop = props[propName];
if (prop != null && prop.CanResetValue(comp)) {
Trace("Resetting default for {0}.{1}", name, propName);
// If there is a member relationship setup for this property, we should
// disconnect it first. This makes sense, since if there was a previous relationship,
// we would have serialized it and not come here at all.
if (relationships != null && relationships[comp, prop] != MemberRelationship.Empty) {
relationships[comp, prop] = MemberRelationship.Empty;
}
prop.ResetValue(comp);
}
}
}
}
}
private void DeserializeDesignTimeProperties(IDesignerSerializationManager manager, string name, object state)
{
if (state != null ) {
object comp = manager.GetInstance(name);
if (comp != null) {
PropertyDescriptorCollection props = TypeDescriptor.GetProperties(comp);
foreach(DictionaryEntry de in (IDictionary)state) {
PropertyDescriptor prop = props[(string)de.Key];
if (prop != null) {
prop.SetValue(comp, de.Value);
}
}
}
}
}
///
/// This is used to resolve nested component references. NestedComponents don't exist as sited
/// components within the DesignerHost, they are actually sited within a parent component. This
/// method takes the FullName defined on INestedSite and returns the component which matches it.
/// outerComponent is the name of the topmost component which does exist in the DesignerHost
///
/// This code also exists in VSCodeDomDesignerLoader -- please keep them in sync.
///
private IComponent ResolveNestedName(IDesignerSerializationManager manager, string name, ref string outerComponent) {
IComponent curComp = null;
if (name != null && manager != null) {
bool moreChunks = true;
Debug.Assert(name.IndexOf('.') > 0, "ResolvedNestedName accepts only nested names!");
// We need to resolve the first chunk using the manager.
// other chunks will be resolved within the nested containers.
int firstIndex = name.IndexOf('.', 0);
outerComponent = name.Substring(0, firstIndex);
curComp = manager.GetInstance(outerComponent) as IComponent;
int prevIndex = firstIndex;
int curIndex = name.IndexOf('.', firstIndex + 1);
while (moreChunks) {
moreChunks = curIndex != -1;
string compName = moreChunks ? name.Substring(prevIndex + 1, curIndex) : name.Substring(prevIndex + 1);
if (curComp != null && curComp.Site != null) {
ISite site = curComp.Site;
INestedContainer container = site.GetService(typeof(INestedContainer)) as INestedContainer;
if (container != null && !string.IsNullOrEmpty(compName)) {
curComp = container.Components[compName];
}
else {
return null;
}
}
else {
return null;
}
if (moreChunks) {
prevIndex = curIndex;
curIndex = name.IndexOf('.', curIndex + 1);
}
}
}
return curComp;
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2102:CatchNonClsCompliantExceptionsInGeneralHandlers")]
private bool ResolveName(IDesignerSerializationManager manager, string name, bool canInvokeManager) {
bool resolved = false;
OrderedCodeStatementCollection statements = _statementsTable[name] as OrderedCodeStatementCollection;
object[] state = (object[])_objectState[name];
// Check for a nested name. Components that are sited within NestedContainers
// need to be looked up in their nested container, and won't be resolvable
// directly via the manager.
if (name.IndexOf('.') > 0) {
string parentName = null;
IComponent nestedComp = ResolveNestedName(manager, name, ref parentName);
if (nestedComp != null && parentName != null) {
manager.SetName(nestedComp, name);
// What is the point of this? Well, the nested components
// won't be in the statement table with its nested name. However,
// their most parent component will be, so forcing a resolve
// of their name will actually deserialize the nested statements.
ResolveName(manager, parentName, canInvokeManager);
}
else {
Debug.Fail("Unable to resolve nested component: " + name);
}
}
// First we check to see if the statements table contains an
// OrderedCodeStatementCollection for this name. If it does this means
// we have not resolved this name yet, so we grab its OrderedCodeStatementCollection
// and deserialize that, along with any default properties and
// design-time properties.
//
// If it doesn't contain an OrderedCodeStatementsCollection this means one of two things:
// 1. We already resolved this name and shoved an instance in there. In this case
// we just return the instance
// 2. There are no statements corresponding to this name, but there might be
// expressions that have never been deserialized, so we check for that and deserailize those.
if (statements != null) {
_objectState[name] = null;
_statementsTable[name] = null; // prevent recursion
// we look through the statements to find
// the variableRef or fieldRef that matches this name
string typeName = null;
foreach (CodeStatement statement in statements) {
CodeVariableDeclarationStatement cvds;
if ((cvds = statement as CodeVariableDeclarationStatement) != null) {
typeName = cvds.Type.BaseType;
break;
}
}
// next, invoke the serializer for this component
if (typeName != null) {
Type type = manager.GetType(typeName);
if (type == null) {
TraceError("Type does not exist: {0}", typeName);
manager.ReportError(new CodeDomSerializerException(SR.GetString(SR.SerializerTypeNotFound, typeName), manager));
}
else {
if (statements != null && statements.Count > 0) {
CodeDomSerializer serializer = GetSerializer(manager, type);
if (serializer == null) {
// We report this as an error. This indicates that there are code statements
// in initialize component that we do not know how to load.
//
TraceError("Type referenced in init method has no serializer: {0}", type.Name);
manager.ReportError(new CodeDomSerializerException(SR.GetString(SR.SerializerNoSerializerForComponent, type.FullName), manager));
}
else {
Trace("--------------------------------------------------------------------");
Trace(" Beginning deserialization of {0}", name);
Trace("--------------------------------------------------------------------");
try {
object instance = serializer.Deserialize(manager, statements);
resolved = instance != null;
if (resolved) {
_statementsTable[name] = instance;
}
}
catch (Exception ex) {
manager.ReportError(ex);
}
}
}
}
}
// if we can't find a typeName to get a serializer with
// we fallback to deserializing each statement individually
// using the default serializer.
else {
foreach(CodeStatement cs in statements) {
DeserializeStatement(manager, cs);
}
resolved = true;
}
if (state != null && state[_stateProperties] != null) {
DeserializeDefaultProperties(manager, name, state[_stateProperties]);
}
if (state != null && state[_stateResources] != null) {
DeserializeDesignTimeProperties(manager, name, state[_stateResources]);
}
if (state != null && state[_stateEvents] != null) {
DeserializeEventResets(manager, name, state[_stateEvents]);
}
if (state != null && state[_stateModifier] != null) {
DeserializeModifier(manager, name, state[_stateModifier]);
}
if (_expressions.ContainsKey(name)) {
ArrayList exps = _expressions[name];
foreach(CodeExpression exp in exps) {
object exValue = DeserializeExpression(manager, name, exp);
}
_expressions.Remove(name);
resolved = true;
}
}
else {
resolved = _statementsTable[name] != null;
if (!resolved)
{
// this is condition 2 of the comment at the start of this method.
if (_expressions.ContainsKey(name)) {
ArrayList exps = _expressions[name];
foreach(CodeExpression exp in exps) {
object exValue = DeserializeExpression(manager, name, exp);
if (exValue != null && !resolved) {
if (canInvokeManager && manager.GetInstance(name) == null) {
manager.SetName(exValue, name);
resolved = true;
}
}
}
}
// Sometimes components won't be in either the statements table
// or the expressions table, for example, this occurs for resources
// during undo/redo. In these cases the component should be resolvable by the manager.
// Never do this when we have been asked by the serialization manager to resolve the name;
// otherwise we may infinitely recurse.
if (!resolved && canInvokeManager) {
resolved = manager.GetInstance(name) != null;
}
// In this case we still need to correctly deserialize default properties &
// design-time only properties.
if (resolved && state != null && state[_stateProperties] != null) {
DeserializeDefaultProperties(manager, name, state[_stateProperties]);
}
if (resolved && state != null && state[_stateResources] != null) {
DeserializeDesignTimeProperties(manager, name, state[_stateResources]);
}
if (resolved && state != null && state[_stateEvents] != null) {
DeserializeEventResets(manager, name, state[_stateEvents]);
}
if (resolved && state != null && state[_stateModifier] != null) {
DeserializeModifier(manager, name, state[_stateModifier]);
}
}
if (!(resolved || (!resolved && !canInvokeManager))) {
manager.ReportError(new CodeDomSerializerException(SR.GetString(SR.CodeDomComponentSerializationServiceDeserializationError, name), manager));
Debug.Fail("No statements or instance for name and no lone experssions: " + name);
}
}
return resolved;
}
private void DeserializeEventResets(IDesignerSerializationManager manager, string name, object state) {
List eventNames = state as List;
if (eventNames != null && manager != null && !string.IsNullOrEmpty(name)) {
IEventBindingService ebs = manager.GetService(typeof(IEventBindingService)) as IEventBindingService;
object comp = manager.GetInstance(name);
if (comp != null && ebs != null) {
PropertyDescriptorCollection eventProps = ebs.GetEventProperties(TypeDescriptor.GetEvents(comp));
if (eventProps != null) {
foreach (string eventName in eventNames) {
PropertyDescriptor prop = eventProps[eventName];
if (prop != null) {
prop.SetValue(comp, null);
}
}
}
}
}
}
private static void DeserializeModifier(IDesignerSerializationManager manager, string name, object state) {
Debug.Assert(state != null && state is MemberAttributes, "Attempting to deserialize a null modifier");
object comp = manager.GetInstance(name);
if (comp != null) {
MemberAttributes modifierValue = (MemberAttributes) state;
PropertyDescriptor modifierProp = TypeDescriptor.GetProperties(comp)["Modifiers"];
if (modifierProp != null) {
modifierProp.SetValue(comp, modifierValue);
}
}
}
public override object Serialize(IDesignerSerializationManager manager, object state) {
throw new NotSupportedException();
}
//
// For everything in the serialization manager's container, we need a variable
// ref, just in case something that has changed has a reference to another object.
// We also must do this for everything that we are serializing that is
// not marked as EntireObject. Otherwise reference could leak and cause
// the entire object to be serialized.
//
internal void SetupVariableReferences(IDesignerSerializationManager manager, IContainer container, IDictionary objectData, IList shimObjectNames) {
foreach(IComponent c in container.Components) {
string name = TypeDescriptor.GetComponentName(c);
if (name != null && name.Length > 0) {
bool needVar = true;
if (objectData.Contains(c) && ((ObjectData)objectData[c]).EntireObject) {
needVar = false;
}
if (needVar) {
CodeVariableReferenceExpression var = new CodeVariableReferenceExpression(name);
SetExpression(manager, c, var);
if (!shimObjectNames.Contains(name)) {
shimObjectNames.Add(name);
}
if (c.Site != null) {
INestedContainer nested = c.Site.GetService(typeof(INestedContainer)) as INestedContainer;
if (nested != null && nested.Components.Count > 0) {
SetupVariableReferences(manager, nested, objectData, shimObjectNames);
}
}
}
}
}
}
///
/// Serializes the given set of objects (contained in objectData) into the given object state
/// dictionary.
///
internal void Serialize(IDesignerSerializationManager manager, IDictionary objectData, IDictionary objectState, IList shimObjectNames) {
IContainer container = manager.GetService(typeof(IContainer)) as IContainer;
if (container != null) {
SetupVariableReferences(manager, container, objectData, shimObjectNames);
}
// Next, save a statement collection for each object.
//
StatementContext statementCxt = new StatementContext();
statementCxt.StatementCollection.Populate(objectData.Keys);
manager.Context.Push(statementCxt);
try {
foreach(ObjectData data in objectData.Values) {
CodeDomSerializer serializer = (CodeDomSerializer)manager.GetSerializer(data.Value.GetType(), typeof(CodeDomSerializer));
// Saved state. Slot 0 is the code gen
// Slot 1 is for generated statements coming from the context.
// Slot 2 is an array of default properites.
// Slot 3 is for design time props.Any may be null.
// Slot 4 is for events that need to be reset.
// Slot 5 is for the modifier property of the object.
// Since it is DSV.Hidden, it won't be serialized. We special case it here.
object[] state = new object[6];
CodeStatementCollection extraStatements = new CodeStatementCollection();
manager.Context.Push(extraStatements);
if (serializer != null) {
if (data.EntireObject) {
if (!IsSerialized(manager, data.Value)) {
if (data.Absolute) {
state[_stateCode] = serializer.SerializeAbsolute(manager, data.Value);
}
else {
state[_stateCode] = serializer.Serialize(manager, data.Value);
}
CodeStatementCollection ctxStatements = statementCxt.StatementCollection[data.Value];
if (ctxStatements != null && ctxStatements.Count > 0) {
state[_stateCtx] = ctxStatements;
}
if (extraStatements.Count > 0) {
CodeStatementCollection existingStatements = state[_stateCode] as CodeStatementCollection;
if (existingStatements != null) {
existingStatements.AddRange(extraStatements);
}
}
}
else {
state[_stateCode] = statementCxt.StatementCollection[data.Value];
}
}
else {
CodeStatementCollection codeStatements = new CodeStatementCollection();
foreach(MemberData md in data.Members) {
if (md.Member.Attributes.Contains(DesignOnlyAttribute.Yes)) {
// For design time properties, we write their value into a resource blob.
PropertyDescriptor prop = md.Member as PropertyDescriptor;
if (prop != null && prop.PropertyType.IsSerializable) {
if (state[_stateResources] == null) {
state[_stateResources] = new Hashtable();
}
((Hashtable)state[_stateResources])[prop.Name] = prop.GetValue(data.Value);
}
}
else {
if (md.Absolute) {
codeStatements.AddRange(serializer.SerializeMemberAbsolute(manager, data.Value, md.Member));
}
else {
codeStatements.AddRange(serializer.SerializeMember(manager, data.Value, md.Member));
}
}
}
state[_stateCode] = codeStatements;
}
}
if (extraStatements.Count > 0) {
CodeStatementCollection existingStatements = state[_stateCode] as CodeStatementCollection;
if (existingStatements != null) {
existingStatements.AddRange(extraStatements);
}
}
manager.Context.Pop();
// And now search for default properties and events
ArrayList defaultPropList = null;
List defaultEventList = null;
IEventBindingService ebs = manager.GetService(typeof(IEventBindingService)) as IEventBindingService;
Debug.Assert(ebs != null, "No IEventBindingService is available. Events will not be serialized correctly");
if (data.EntireObject) {
PropertyDescriptorCollection props = TypeDescriptor.GetProperties(data.Value);
foreach(PropertyDescriptor prop in props) {
if (!prop.ShouldSerializeValue(data.Value)
&& !prop.Attributes.Contains(DesignerSerializationVisibilityAttribute.Hidden)) {
if (prop.Attributes.Contains(DesignerSerializationVisibilityAttribute.Content) || !prop.IsReadOnly) {
if (defaultPropList == null) {
defaultPropList = new ArrayList(data.Members.Count);
}
Trace("Adding default for {0}.{1}", data.Name, prop.Name);
defaultPropList.Add(prop.Name);
}
}
}
if (ebs != null) {
PropertyDescriptorCollection events = ebs.GetEventProperties(TypeDescriptor.GetEvents(data.Value));
foreach(PropertyDescriptor eventProp in events) {
if (eventProp == null || eventProp.IsReadOnly) {
continue;
}
if (eventProp.GetValue(data.Value) == null) {
if (defaultEventList == null) {
defaultEventList = new List();
}
defaultEventList .Add(eventProp.Name);
}
}
}
}
else {
foreach(MemberData md in data.Members) {
PropertyDescriptor prop = md.Member as PropertyDescriptor;
if (prop != null && !prop.ShouldSerializeValue(data.Value)) {
if (ebs != null && ebs.GetEvent(prop) != null) {
Debug.Assert(prop.GetValue(data.Value) == null, "ShouldSerializeValue and GetValue are differing");
if (defaultEventList == null) {
defaultEventList = new List();
}
defaultEventList .Add(prop.Name);
}
else {
if (defaultPropList == null) {
defaultPropList = new ArrayList(data.Members.Count);
}
Trace("Adding default for {0}.{1}", data.Name, prop.Name);
defaultPropList.Add(prop.Name);
}
}
}
}
// Check for non-default modifiers property
PropertyDescriptor modifier = TypeDescriptor.GetProperties(data.Value)["Modifiers"] as PropertyDescriptor;
if (modifier != null) {
state[_stateModifier] = modifier.GetValue(data.Value);
}
if (defaultPropList != null) {
state[_stateProperties] = (string[])defaultPropList.ToArray(typeof(string));
}
if (defaultEventList != null) {
state[_stateEvents] = defaultEventList;
}
if (state[_stateCode] != null || state[_stateProperties] != null) {
objectState[data.Name] = state;
}
}
}
finally {
Debug.Assert(manager.Context.Current == statementCxt, "Context stack corrupted");
manager.Context.Pop();
}
}
}
///
/// We create one of these for each specific member on an
/// object.
///
private class MemberData {
///
/// The member we're serializing.
///
internal MemberDescriptor Member;
///
/// True if we should try to serialize values that
/// contain their defaults as well.
///
internal bool Absolute;
///
/// Creates a new member data ready to be serialized.
///
internal MemberData(MemberDescriptor member, bool absolute) {
Member = member;
Absolute = absolute;
}
}
///
/// We create one of these for each object we process.
///
private class ObjectData {
private bool _entireObject;
private bool _absolute;
private ArrayList _members;
///
/// The object value we're serializing.
///
internal object Value;
///
/// The name of the object we're serializing.
///
internal string Name;
///
/// If true, the entire object should be serialized.
/// If false, only the members in the member list should
/// be serialized.
///
internal bool EntireObject {
get {
return _entireObject;
}
set {
if (value && _members != null) {
_members.Clear();
}
_entireObject = value;
}
}
///
/// If true, the object should be serialized such that
/// during deserialization to an existing object the
/// object is reconstructed entirely.
/// If false, serialize normally
///
internal bool Absolute {
get {
return _absolute;
}
set {
_absolute = value;
}
}
///
/// A list of MemberData objects representing
/// specific members that should be serialized.
///
internal IList Members {
get {
if (_members == null) {
_members = new ArrayList();
}
return _members;
}
}
}
///
/// Our private resource manager...it just pushes all the data into a hashtable
/// and then we serialize the hashtable. On deseriaization, the hashtable is rebuilt
/// for us and we have all the data we saved out.
///
private class LocalResourceManager : ResourceManager, IResourceWriter, IResourceReader {
private Hashtable _hashtable;
internal LocalResourceManager() {}
internal LocalResourceManager(Hashtable data) { _hashtable = data; }
internal Hashtable Data {
get{
if (_hashtable == null) {
_hashtable = new Hashtable();
}
return _hashtable;
}
}
// IResourceWriter
public void AddResource(string name, object value) { Data[name] = value; }
public void AddResource(string name, string value) { Data[name] = value; }
public void AddResource(string name, byte[] value) { Data[name] = value; }
public void Close() {}
public void Dispose() { Data.Clear(); }
public void Generate() {}
// IResourceReader / ResourceManager
public override object GetObject(string name) { return Data[name]; }
public override string GetString(string name) { return Data[name] as string;}
public IDictionaryEnumerator GetEnumerator() {return Data.GetEnumerator();}
IEnumerator IEnumerable.GetEnumerator() {return GetEnumerator();
}
}
///
/// LocalServices contains the services that we add to our
/// serialization manager. We do this, rather than implement
/// interfaces directly on CodeDomSerializationStore to prevent
/// people from assuming what our implementation is
/// (CodeDomSerializationStore is returned publicly as
/// SerializationStore).
///
private class LocalServices : IServiceProvider, IResourceService {
private CodeDomSerializationStore _store;
private IServiceProvider _provider;
internal LocalServices(CodeDomSerializationStore store, IServiceProvider provider) {
_store = store;
_provider = provider;
}
// IResourceService
IResourceReader IResourceService.GetResourceReader(CultureInfo info) { return _store.Resources; }
IResourceWriter IResourceService.GetResourceWriter(CultureInfo info) { return _store.Resources; }
// IServiceProvider
object IServiceProvider.GetService(Type serviceType) {
if (serviceType == null) {
throw new ArgumentNullException("serviceType");
}
if (serviceType == typeof(IResourceService)) {
return this;
}
if (_provider != null) {
return _provider.GetService(serviceType);
}
return null;
}
}
private class PassThroughSerializationManager : IDesignerSerializationManager {
Hashtable resolved = new Hashtable();
DesignerSerializationManager manager;
private ResolveNameEventHandler resolveNameEventHandler;
public PassThroughSerializationManager(DesignerSerializationManager manager) {
this.manager = manager;
}
public DesignerSerializationManager Manager {
get {
return manager;
}
}
ContextStack IDesignerSerializationManager.Context {
get {
return ((IDesignerSerializationManager)manager).Context;
}
}
PropertyDescriptorCollection IDesignerSerializationManager.Properties {
get {
return ((IDesignerSerializationManager)manager).Properties;
}
}
event ResolveNameEventHandler IDesignerSerializationManager.ResolveName {
add {
((IDesignerSerializationManager)manager).ResolveName += value;
resolveNameEventHandler += value;
}
remove {
((IDesignerSerializationManager)manager).ResolveName -= value;
resolveNameEventHandler -= value;
}
}
event EventHandler IDesignerSerializationManager.SerializationComplete {
add {
((IDesignerSerializationManager)manager).SerializationComplete += value;
}
remove {
((IDesignerSerializationManager)manager).SerializationComplete -= value;
}
}
void IDesignerSerializationManager.AddSerializationProvider(IDesignerSerializationProvider provider) {
((IDesignerSerializationManager)manager).AddSerializationProvider(provider);
}
object IDesignerSerializationManager.CreateInstance(Type type, ICollection arguments, string name, bool addToContainer) {
return ((IDesignerSerializationManager)manager).CreateInstance(type, arguments, name, addToContainer);
}
object IDesignerSerializationManager.GetInstance(string name) {
object instance = ((IDesignerSerializationManager)manager).GetInstance(name);
// VSWhidbey 453436
// If an object is retrived from the current container as a result of GetInstance(), we need to make sure and
// fully deserialize it before returning it. To do this, we will force a resolve on this name
// and not interfere the next time GetInstance() is called with this component. This will force
// the component to completely deserialize.
if (resolveNameEventHandler != null && instance != null && !resolved.ContainsKey(name) &&
manager.PreserveNames && manager.Container != null && manager.Container.Components[name] != null) {
resolved[name] = true;
resolveNameEventHandler(this, new ResolveNameEventArgs(name));
}
return instance;
}
string IDesignerSerializationManager.GetName(object value) {
return ((IDesignerSerializationManager)manager).GetName(value);
}
object IDesignerSerializationManager.GetSerializer(Type objectType, Type serializerType) {
return ((IDesignerSerializationManager)manager).GetSerializer(objectType, serializerType);
}
Type IDesignerSerializationManager.GetType(string typeName) {
return ((IDesignerSerializationManager)manager).GetType(typeName);
}
void IDesignerSerializationManager.RemoveSerializationProvider(IDesignerSerializationProvider provider) {
((IDesignerSerializationManager)manager).RemoveSerializationProvider(provider);
}
void IDesignerSerializationManager.ReportError(object errorInformation) {
((IDesignerSerializationManager)manager).ReportError(errorInformation);
}
void IDesignerSerializationManager.SetName(object instance, string name) {
((IDesignerSerializationManager)manager).SetName(instance, name);
}
object IServiceProvider.GetService(Type serviceType) {
return ((IDesignerSerializationManager)manager).GetService(serviceType);
}
}
///
/// This is a serialzation manager that can load assemblies and search for types
/// and provide a resource manager from our serialization store.
///
private class LocalDesignerSerializationManager : DesignerSerializationManager {
private CodeDomSerializationStore _store;
private Nullable _typeSvcAvailable = new Nullable();
///
/// Creates a new serilalization manager.
///
internal LocalDesignerSerializationManager(CodeDomSerializationStore store, IServiceProvider provider) : base(provider) {
_store = store;
}
///
/// We override CreateInstance here to provide a hook to our resource manager.
///
protected override object CreateInstance(Type type, ICollection arguments, string name, bool addToContainer) {
if (typeof(ResourceManager).IsAssignableFrom(type)) {
return _store.Resources;
}
return base.CreateInstance(type, arguments, name, addToContainer);
}
private Nullable TypeResolutionAvailable {
get {
if (!_typeSvcAvailable.HasValue) {
_typeSvcAvailable = new Nullable(GetService(typeof(ITypeResolutionService)) != null);
}
return _typeSvcAvailable.Value;
}
}
///
/// Override of GetType. We favor the base implementation first, which
/// uses the type resolution service if it is available. If that fails, we
/// will try to load assemblies from the given array of assembly names.
///
protected override Type GetType(string name) {
Type t = base.GetType(name);
if (t == null && !TypeResolutionAvailable) {
AssemblyName[] names = _store.AssemblyNames;
// First try the assembly names directly.
//
foreach(AssemblyName n in names) {
Assembly a = Assembly.Load(n);
if (a != null) {
t = a.GetType(name);
if (t != null) {
break;
}
}
}
// Failing that go after their dependencies.
//
if (t == null) {
foreach(AssemblyName n in names) {
Assembly a = Assembly.Load(n);
if (a != null) {
foreach(AssemblyName dep in a.GetReferencedAssemblies()) {
Assembly aDep = Assembly.Load(dep);
if (aDep != null) {
t = aDep.GetType(name);
if (t != null) {
break;
}
}
}
if (t != null) {
break;
}
}
}
}
}
return t;
}
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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