Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / AddIn / AddIn / System / Addin / Hosting / Store / PipelineComponent.cs / 1305376 / PipelineComponent.cs
// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
/*============================================================
**
** Class: PipelineComponent
**
** Purpose: Base class representing parts of the add-in
** pipeline, from the host to the contract to the addin.
**
===========================================================*/
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Reflection;
using System.Security;
using System.Security.Permissions;
using System.Text;
using System.Diagnostics;
using System.AddIn.MiniReflection;
using System.AddIn.Pipeline;
using System.Diagnostics.Contracts;
namespace System.AddIn
{
[Serializable]
internal enum PipelineComponentType
{
HostAdapter,
Contract,
AddInAdapter,
AddInBase,
AddIn
}
[Serializable]
internal abstract class PipelineComponent
{
private TypeInfo _typeInfo;
private String _location; // fully qualified path, known after deserialization
private String _relativeLocation; // relative to the add-in root or pipeline root.
private bool _connectedToNeighbors;
private bool _haveSetRootDirectory; // Whether the add-in root or pipeline root has been set.
// Since these dictionaries are read-only after initialization and they are often empty,
// a perf optimization is to have the empty ones be shared.
private IDictionary _qualificationData;
internal static readonly IDictionary s_emptyDictionary =
new ReadOnlyDictionary(new Dictionary());
private static Type s_IContractInReflectionLoaderContext;
private static Type s_ContractAttrInReflectionLoaderContext;
private static Type s_AddInAdapterAttrInReflectionLoaderContext;
private static Type s_AddInBaseAttrInReflectionLoaderContext;
private static Type s_AddInAttrInReflectionLoaderContext;
private static Type s_QualificationDataAttrInReflectionLoaderContext;
internal PipelineComponent(TypeInfo typeInfo, String assemblyLocation)
{
if (typeInfo == null)
throw new ArgumentNullException("typeInfo");
if (assemblyLocation == null)
throw new ArgumentNullException("assemblyLocation");
System.Diagnostics.Contracts.Contract.EndContractBlock();
_typeInfo = typeInfo;
if (Path.IsPathRooted(assemblyLocation)) {
// For FindAddIn case, we know the full location;
_location = assemblyLocation;
_haveSetRootDirectory = true;
}
else {
_relativeLocation = assemblyLocation;
}
// load the qualification data, either from reflection or minireflection, as appropriate
if (_typeInfo.HasReflectionType)
{
IList cas =CustomAttributeData.GetCustomAttributes(_typeInfo.ReflectionType);
Dictionary dictionary = new Dictionary();
foreach (CustomAttributeData ca in cas)
{
if (Object.ReferenceEquals(ca.Constructor.DeclaringType, s_QualificationDataAttrInReflectionLoaderContext))
{
IList args = ca.ConstructorArguments;
String key = (String)args[0].Value;
String val = (String)args[1].Value;
dictionary[key] = val;
}
}
_qualificationData = dictionary.Count == 0 ? s_emptyDictionary :
new ReadOnlyDictionary(dictionary);
}
else
{
Type qualificationDataAttribute = typeof (QualificationDataAttribute);
MiniCustomAttributeInfo[] cas = typeInfo.GetCustomAttributeInfos(qualificationDataAttribute);
Dictionary dictionary = new Dictionary();
if (cas != null && cas.Length > 0)
{
foreach (MiniCustomAttributeInfo ca in cas)
{
MiniCustomAttributeFixedArgInfo[] fai = ca.FixedArgs;
String key = (String)fai[0].Value;
String val = (String)fai[1].Value;
dictionary[key] = val;
}
}
_qualificationData = dictionary.Count == 0 ? s_emptyDictionary :
new ReadOnlyDictionary(dictionary);
}
}
internal IDictionary QualificationData
{
get { return _qualificationData; }
}
protected static Type IContractInReflectionLoaderContext {
get {
System.Diagnostics.Contracts.Contract.Assert(s_IContractInReflectionLoaderContext != null);
return s_IContractInReflectionLoaderContext;
}
}
internal static Type ContractAttributeInReflectionLoaderContext {
get {
System.Diagnostics.Contracts.Contract.Assert(s_ContractAttrInReflectionLoaderContext != null);
return s_ContractAttrInReflectionLoaderContext;
}
}
internal static Type AddInAdapterAttributeInReflectionLoaderContext {
get {
System.Diagnostics.Contracts.Contract.Assert(s_AddInAdapterAttrInReflectionLoaderContext != null);
return s_AddInAdapterAttrInReflectionLoaderContext;
}
}
internal static Type AddInBaseAttributeInReflectionLoaderContext {
get {
System.Diagnostics.Contracts.Contract.Assert(s_AddInBaseAttrInReflectionLoaderContext != null);
return s_AddInBaseAttrInReflectionLoaderContext;
}
}
internal static Type AddInAttributeInReflectionLoaderContext {
get {
System.Diagnostics.Contracts.Contract.Assert(s_AddInAttrInReflectionLoaderContext != null);
return s_AddInAttrInReflectionLoaderContext;
}
}
internal static void SetTypesFromReflectionLoaderContext(System.Reflection.Assembly systemAddInInReflLoaderContext,
System.Reflection.Assembly systemAddInContractsInReflLoaderContext)
{
System.Diagnostics.Contracts.Contract.Requires(systemAddInInReflLoaderContext != null);
System.Diagnostics.Contracts.Contract.Requires(systemAddInInReflLoaderContext.ReflectionOnly);
System.Diagnostics.Contracts.Contract.Requires(systemAddInContractsInReflLoaderContext != null);
System.Diagnostics.Contracts.Contract.Requires(systemAddInContractsInReflLoaderContext.ReflectionOnly);
s_IContractInReflectionLoaderContext = systemAddInContractsInReflLoaderContext.GetType(typeof(System.AddIn.Contract.IContract).FullName, true);
s_ContractAttrInReflectionLoaderContext =systemAddInContractsInReflLoaderContext.GetType("System.AddIn.Pipeline.AddInContractAttribute", true);
s_QualificationDataAttrInReflectionLoaderContext = systemAddInContractsInReflLoaderContext.GetType("System.AddIn.Pipeline.QualificationDataAttribute", true);
s_AddInAdapterAttrInReflectionLoaderContext = systemAddInInReflLoaderContext.GetType("System.AddIn.Pipeline.AddInAdapterAttribute", true);
s_AddInBaseAttrInReflectionLoaderContext = systemAddInInReflLoaderContext.GetType("System.AddIn.Pipeline.AddInBaseAttribute", true);
s_AddInAttrInReflectionLoaderContext = systemAddInInReflLoaderContext.GetType("System.AddIn.AddInAttribute", true);
}
internal void SetRootDirectory(String root)
{
System.Diagnostics.Contracts.Contract.Requires(Path.IsPathRooted(root));
// Note that the same pipeline component may show up in multiple pipelines,
// and we can't do this operation twice.
if (!_haveSetRootDirectory) {
System.Diagnostics.Contracts.Contract.Assert(!Path.IsPathRooted(_relativeLocation));
_location = Path.Combine(root, _relativeLocation);
_haveSetRootDirectory = true;
}
}
public String Location {
get {
System.Diagnostics.Contracts.Contract.Assert(_haveSetRootDirectory, "You must set this component's root directory before getting an absolute path. Either call SetRootDirectory or use RelativeLocation instead.");
return _location;
}
}
internal String RelativeLocation {
get {
return _relativeLocation;
}
}
protected String BestAvailableLocation {
get {
System.Diagnostics.Contracts.Contract.Ensures(System.Diagnostics.Contracts.Contract.Result() != null);
if (_haveSetRootDirectory)
return _location;
return _relativeLocation;
}
}
public String Name {
get {
System.Diagnostics.Contracts.Contract.Ensures(System.Diagnostics.Contracts.Contract.Result() != null);
return _typeInfo.Name;
}
}
public TypeInfo TypeInfo {
get { return _typeInfo; }
}
public String FullName {
get {
return _typeInfo.FullName;
}
}
public bool ConnectedToNeighbors {
get { return _connectedToNeighbors; }
set { _connectedToNeighbors = value; }
}
// @
internal virtual bool Validate(Type type, Collection warnings)
{
return Validate(new TypeInfo(type), warnings);
}
// Finish the initialization, and ensure this type is a valid component
// for use in the add-in model. On failure, log a message & return false.
// Derived classes should do their own validation and then call this one.
internal virtual bool Validate(TypeInfo type, Collection warnings)
{
if (type.IsGeneric)
{
warnings.Add(String.Format(System.Globalization.CultureInfo.CurrentCulture, Res.ComponentUnusableBecauseItIsGeneric, type.Name));
return false;
}
return true;
}
// used in AddIn class and HostAdapter class
// Since MiniReflection doesn't support generics, we do a "best effort" while generating this list.
[System.Security.SecuritySafeCritical]
internal static TypeInfo[] FindBaseTypesAndInterfaces(TypeInfo type)
{
TypeInfo currentTypeInfo = type;
TypeInfo objectType = new TypeInfo(typeof(Object));
List infos = new List();
try
{
//we walk up the hierarchy as far as we can until we can't
//get the types anymore...
while (!currentTypeInfo.Equals(objectType))
{
// To get the base type and interfaces, we will need to resolve a TypeRef to a TypeDef first
currentTypeInfo = currentTypeInfo.TryGetTypeDef();
if (currentTypeInfo != null)
{
TypeInfo[] interfaces = currentTypeInfo.GetInterfaces();
if (interfaces != null)
infos.AddRange(interfaces);
TypeInfo baseType = currentTypeInfo.BaseType;
infos.Add(baseType);
currentTypeInfo = baseType;
}
else
{
// we have reached the limit of what we can resolve in the addin/hostadapter's folder
break;
}
}
}
catch (GenericsNotImplementedException)
{
// Since GetInterfaces() ignores all generic interfaces, we'll only come here if we encounter a generic base class.
// We'll ignore the generic base class and return whatever bases we found earlier.
}
return infos.ToArray();
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
/*============================================================
**
** Class: PipelineComponent
**
** Purpose: Base class representing parts of the add-in
** pipeline, from the host to the contract to the addin.
**
===========================================================*/
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Reflection;
using System.Security;
using System.Security.Permissions;
using System.Text;
using System.Diagnostics;
using System.AddIn.MiniReflection;
using System.AddIn.Pipeline;
using System.Diagnostics.Contracts;
namespace System.AddIn
{
[Serializable]
internal enum PipelineComponentType
{
HostAdapter,
Contract,
AddInAdapter,
AddInBase,
AddIn
}
[Serializable]
internal abstract class PipelineComponent
{
private TypeInfo _typeInfo;
private String _location; // fully qualified path, known after deserialization
private String _relativeLocation; // relative to the add-in root or pipeline root.
private bool _connectedToNeighbors;
private bool _haveSetRootDirectory; // Whether the add-in root or pipeline root has been set.
// Since these dictionaries are read-only after initialization and they are often empty,
// a perf optimization is to have the empty ones be shared.
private IDictionary _qualificationData;
internal static readonly IDictionary s_emptyDictionary =
new ReadOnlyDictionary(new Dictionary());
private static Type s_IContractInReflectionLoaderContext;
private static Type s_ContractAttrInReflectionLoaderContext;
private static Type s_AddInAdapterAttrInReflectionLoaderContext;
private static Type s_AddInBaseAttrInReflectionLoaderContext;
private static Type s_AddInAttrInReflectionLoaderContext;
private static Type s_QualificationDataAttrInReflectionLoaderContext;
internal PipelineComponent(TypeInfo typeInfo, String assemblyLocation)
{
if (typeInfo == null)
throw new ArgumentNullException("typeInfo");
if (assemblyLocation == null)
throw new ArgumentNullException("assemblyLocation");
System.Diagnostics.Contracts.Contract.EndContractBlock();
_typeInfo = typeInfo;
if (Path.IsPathRooted(assemblyLocation)) {
// For FindAddIn case, we know the full location;
_location = assemblyLocation;
_haveSetRootDirectory = true;
}
else {
_relativeLocation = assemblyLocation;
}
// load the qualification data, either from reflection or minireflection, as appropriate
if (_typeInfo.HasReflectionType)
{
IList cas =CustomAttributeData.GetCustomAttributes(_typeInfo.ReflectionType);
Dictionary dictionary = new Dictionary();
foreach (CustomAttributeData ca in cas)
{
if (Object.ReferenceEquals(ca.Constructor.DeclaringType, s_QualificationDataAttrInReflectionLoaderContext))
{
IList args = ca.ConstructorArguments;
String key = (String)args[0].Value;
String val = (String)args[1].Value;
dictionary[key] = val;
}
}
_qualificationData = dictionary.Count == 0 ? s_emptyDictionary :
new ReadOnlyDictionary(dictionary);
}
else
{
Type qualificationDataAttribute = typeof (QualificationDataAttribute);
MiniCustomAttributeInfo[] cas = typeInfo.GetCustomAttributeInfos(qualificationDataAttribute);
Dictionary dictionary = new Dictionary();
if (cas != null && cas.Length > 0)
{
foreach (MiniCustomAttributeInfo ca in cas)
{
MiniCustomAttributeFixedArgInfo[] fai = ca.FixedArgs;
String key = (String)fai[0].Value;
String val = (String)fai[1].Value;
dictionary[key] = val;
}
}
_qualificationData = dictionary.Count == 0 ? s_emptyDictionary :
new ReadOnlyDictionary(dictionary);
}
}
internal IDictionary QualificationData
{
get { return _qualificationData; }
}
protected static Type IContractInReflectionLoaderContext {
get {
System.Diagnostics.Contracts.Contract.Assert(s_IContractInReflectionLoaderContext != null);
return s_IContractInReflectionLoaderContext;
}
}
internal static Type ContractAttributeInReflectionLoaderContext {
get {
System.Diagnostics.Contracts.Contract.Assert(s_ContractAttrInReflectionLoaderContext != null);
return s_ContractAttrInReflectionLoaderContext;
}
}
internal static Type AddInAdapterAttributeInReflectionLoaderContext {
get {
System.Diagnostics.Contracts.Contract.Assert(s_AddInAdapterAttrInReflectionLoaderContext != null);
return s_AddInAdapterAttrInReflectionLoaderContext;
}
}
internal static Type AddInBaseAttributeInReflectionLoaderContext {
get {
System.Diagnostics.Contracts.Contract.Assert(s_AddInBaseAttrInReflectionLoaderContext != null);
return s_AddInBaseAttrInReflectionLoaderContext;
}
}
internal static Type AddInAttributeInReflectionLoaderContext {
get {
System.Diagnostics.Contracts.Contract.Assert(s_AddInAttrInReflectionLoaderContext != null);
return s_AddInAttrInReflectionLoaderContext;
}
}
internal static void SetTypesFromReflectionLoaderContext(System.Reflection.Assembly systemAddInInReflLoaderContext,
System.Reflection.Assembly systemAddInContractsInReflLoaderContext)
{
System.Diagnostics.Contracts.Contract.Requires(systemAddInInReflLoaderContext != null);
System.Diagnostics.Contracts.Contract.Requires(systemAddInInReflLoaderContext.ReflectionOnly);
System.Diagnostics.Contracts.Contract.Requires(systemAddInContractsInReflLoaderContext != null);
System.Diagnostics.Contracts.Contract.Requires(systemAddInContractsInReflLoaderContext.ReflectionOnly);
s_IContractInReflectionLoaderContext = systemAddInContractsInReflLoaderContext.GetType(typeof(System.AddIn.Contract.IContract).FullName, true);
s_ContractAttrInReflectionLoaderContext =systemAddInContractsInReflLoaderContext.GetType("System.AddIn.Pipeline.AddInContractAttribute", true);
s_QualificationDataAttrInReflectionLoaderContext = systemAddInContractsInReflLoaderContext.GetType("System.AddIn.Pipeline.QualificationDataAttribute", true);
s_AddInAdapterAttrInReflectionLoaderContext = systemAddInInReflLoaderContext.GetType("System.AddIn.Pipeline.AddInAdapterAttribute", true);
s_AddInBaseAttrInReflectionLoaderContext = systemAddInInReflLoaderContext.GetType("System.AddIn.Pipeline.AddInBaseAttribute", true);
s_AddInAttrInReflectionLoaderContext = systemAddInInReflLoaderContext.GetType("System.AddIn.AddInAttribute", true);
}
internal void SetRootDirectory(String root)
{
System.Diagnostics.Contracts.Contract.Requires(Path.IsPathRooted(root));
// Note that the same pipeline component may show up in multiple pipelines,
// and we can't do this operation twice.
if (!_haveSetRootDirectory) {
System.Diagnostics.Contracts.Contract.Assert(!Path.IsPathRooted(_relativeLocation));
_location = Path.Combine(root, _relativeLocation);
_haveSetRootDirectory = true;
}
}
public String Location {
get {
System.Diagnostics.Contracts.Contract.Assert(_haveSetRootDirectory, "You must set this component's root directory before getting an absolute path. Either call SetRootDirectory or use RelativeLocation instead.");
return _location;
}
}
internal String RelativeLocation {
get {
return _relativeLocation;
}
}
protected String BestAvailableLocation {
get {
System.Diagnostics.Contracts.Contract.Ensures(System.Diagnostics.Contracts.Contract.Result() != null);
if (_haveSetRootDirectory)
return _location;
return _relativeLocation;
}
}
public String Name {
get {
System.Diagnostics.Contracts.Contract.Ensures(System.Diagnostics.Contracts.Contract.Result() != null);
return _typeInfo.Name;
}
}
public TypeInfo TypeInfo {
get { return _typeInfo; }
}
public String FullName {
get {
return _typeInfo.FullName;
}
}
public bool ConnectedToNeighbors {
get { return _connectedToNeighbors; }
set { _connectedToNeighbors = value; }
}
// @
internal virtual bool Validate(Type type, Collection warnings)
{
return Validate(new TypeInfo(type), warnings);
}
// Finish the initialization, and ensure this type is a valid component
// for use in the add-in model. On failure, log a message & return false.
// Derived classes should do their own validation and then call this one.
internal virtual bool Validate(TypeInfo type, Collection warnings)
{
if (type.IsGeneric)
{
warnings.Add(String.Format(System.Globalization.CultureInfo.CurrentCulture, Res.ComponentUnusableBecauseItIsGeneric, type.Name));
return false;
}
return true;
}
// used in AddIn class and HostAdapter class
// Since MiniReflection doesn't support generics, we do a "best effort" while generating this list.
[System.Security.SecuritySafeCritical]
internal static TypeInfo[] FindBaseTypesAndInterfaces(TypeInfo type)
{
TypeInfo currentTypeInfo = type;
TypeInfo objectType = new TypeInfo(typeof(Object));
List infos = new List();
try
{
//we walk up the hierarchy as far as we can until we can't
//get the types anymore...
while (!currentTypeInfo.Equals(objectType))
{
// To get the base type and interfaces, we will need to resolve a TypeRef to a TypeDef first
currentTypeInfo = currentTypeInfo.TryGetTypeDef();
if (currentTypeInfo != null)
{
TypeInfo[] interfaces = currentTypeInfo.GetInterfaces();
if (interfaces != null)
infos.AddRange(interfaces);
TypeInfo baseType = currentTypeInfo.BaseType;
infos.Add(baseType);
currentTypeInfo = baseType;
}
else
{
// we have reached the limit of what we can resolve in the addin/hostadapter's folder
break;
}
}
}
catch (GenericsNotImplementedException)
{
// Since GetInterfaces() ignores all generic interfaces, we'll only come here if we encounter a generic base class.
// We'll ignore the generic base class and return whatever bases we found earlier.
}
return infos.ToArray();
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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