public void ProvideAdvices(PostSharp.Sdk.CodeWeaver.Weaver codeWeaver)
{
LogInitializeAdvice.InitializeLoggerPolicies(this);
// Gets the dictionary of custom attributes.
var customAttributeDictionaryTask = AnnotationRepositoryTask.GetTask(this.Project);
// Requests an enumerator of all instances of the LogAttribute.
var customAttributeEnumerator = customAttributeDictionaryTask.GetAnnotationsOfType(typeof(LogAttribute), false);
// For each instance of the LogAttribute.
while (customAttributeEnumerator.MoveNext())
{
// Gets the method to which it applies.
MethodDefDeclaration methodDef = customAttributeEnumerator.Current.TargetElement as MethodDefDeclaration;
if (methodDef != null)
{
// Type whose constructor is being woven.
TypeDefDeclaration wovenType = methodDef.DeclaringType;
// Do not weave interface.
if ((wovenType.Attributes & TypeAttributes.Interface) != TypeAttributes.Interface)
{
// Constructs a custom attribute instance.
LogAttribute attribute = (LogAttribute)CustomAttributeHelper.ConstructRuntimeObject(customAttributeEnumerator.Current.Value);
bool isMethodEligibleForInjection;
if (attribute.IncludeCompilerGeneratedCode)
{
// Logging code can be injected even if the method is compiler generated.
// Method processing can safely continue.
isMethodEligibleForInjection = true;
}
else
{
// Proceed with the method only when it is not compiler generated and
// its declaring type is not generated.
isMethodEligibleForInjection = !(methodDef.CustomAttributes.Contains(this.compilerGeneratedAttributeType) || methodDef.DeclaringType.CustomAttributes.Contains(this.compilerGeneratedAttributeType));
}
if (isMethodEligibleForInjection)
{
// Build an advice based on this custom attribute.
LogAdvice advice = new LogAdvice(this, attribute);
// Join point kinds that are used by respective logging code.
JoinPointKinds enterKinds = (attribute.EntryLevel != LogLevel.None) ? JoinPointKinds.BeforeMethodBody : 0;
JoinPointKinds exitKinds = (attribute.ExitLevel != LogLevel.None) ? JoinPointKinds.AfterMethodBodySuccess : 0;
JoinPointKinds exceptionKinds = (attribute.ExceptionLevel != LogLevel.None) ? JoinPointKinds.AfterMethodBodyException : 0;
// Sum of all required join point kinds;
JoinPointKinds effectiveKinds = enterKinds | exitKinds | exceptionKinds;
// Ensure there is at least one join point the logging advice applies to.
if (effectiveKinds != 0)
{
if (!this.perTypeLoggingDatas.ContainsKey(wovenType))
{
AddTypeLogginData(wovenType);
codeWeaver.AddTypeLevelAdvice(new LogInitializeAdvice(this),
JoinPointKinds.BeforeStaticConstructor,
new Singleton<TypeDefDeclaration>(wovenType));
}
codeWeaver.AddMethodLevelAdvice(advice,
new Singleton<MethodDefDeclaration>(methodDef),
effectiveKinds,
null);
}
}
}
}
}
//Check for types having LoggerAttribute and have no LogAttribute.
customAttributeEnumerator = customAttributeDictionaryTask.GetAnnotationsOfType(typeof(LoggerAttribute), false);
while (customAttributeEnumerator.MoveNext())
{
// Gets the method to which it applies.
TypeDefDeclaration wovenType = customAttributeEnumerator.Current.TargetElement as TypeDefDeclaration;
if (wovenType != null && !perTypeLoggingDatas.ContainsKey(wovenType))
{
//Weave
AddTypeLogginData(wovenType);
codeWeaver.AddTypeLevelAdvice(new LogInitializeAdvice(this),
JoinPointKinds.BeforeStaticConstructor,
new Singleton<TypeDefDeclaration>(wovenType));
}
}
//Check for types compatible to LoggerPolicyAttribute and have no LogAttribute.
customAttributeEnumerator = customAttributeDictionaryTask.GetAnnotationsOfType(typeof(LoggerPolicyAttribute), false);
while (customAttributeEnumerator.MoveNext())
{
// Gets the method to which it applies.
TypeDefDeclaration wovenType = customAttributeEnumerator.Current.TargetElement as TypeDefDeclaration;
if (wovenType != null && !wovenType.IsModuleSpecialType && !perTypeLoggingDatas.ContainsKey(wovenType))
{
//Weave
AddTypeLogginData(wovenType);
codeWeaver.AddTypeLevelAdvice(new LogInitializeAdvice(this),
JoinPointKinds.BeforeStaticConstructor,
new Singleton<TypeDefDeclaration>(wovenType));
}
}
}
public void ProvideAdvices(PostSharp.CodeWeaver.Weaver codeWeaver)
{
// Gets the dictionary of custom attributes.
CustomAttributeDictionaryTask customAttributeDictionaryTask = CustomAttributeDictionaryTask.GetTask(this.Project);
// Requests an enumerator of all instances of the LogAttribute.
IEnumerator<ICustomAttributeInstance> customAttributeEnumerator = customAttributeDictionaryTask.GetCustomAttributesEnumerator(typeof (LogAttribute), false);
// For each instance of the LogAttribute.
while (customAttributeEnumerator.MoveNext()) {
// Gets the method to which it applies.
MethodDefDeclaration methodDef = customAttributeEnumerator.Current.TargetElement as MethodDefDeclaration;
if (methodDef != null) {
// Type whose constructor is being woven.
TypeDefDeclaration wovenType = methodDef.DeclaringType;
// Do not weave interface.
if ((wovenType.Attributes & TypeAttributes.Interface) != TypeAttributes.Interface) {
// Constructs a custom attribute instance.
LogAttribute attribute = (LogAttribute) CustomAttributeHelper.ConstructRuntimeObject(customAttributeEnumerator.Current.Value, this.Project.Module);
bool isMethodEligibleForInjection;
if (attribute.IncludeCompilerGeneratedCode) {
// Logging code can be injected even if the method is compiler generated.
// Method processing can safely continue.
isMethodEligibleForInjection = true;
} else {
// Proceed with the method only when it is not compiler generated and
// its declaring type is not generated.
isMethodEligibleForInjection = ! (methodDef.CustomAttributes.Contains(this.compilerGeneratedAttributeType) || methodDef.DeclaringType.CustomAttributes.Contains(this.compilerGeneratedAttributeType));
}
if (isMethodEligibleForInjection) {
// Build an advice based on this custom attribute.
LogAdvice advice = new LogAdvice(this, attribute);
// Join point kinds that are used by respective logging code.
JoinPointKinds enterKinds = (attribute.EntryLevel != LogLevel.None) ? JoinPointKinds.BeforeMethodBody : 0;
JoinPointKinds exitKinds = (attribute.ExitLevel != LogLevel.None) ? JoinPointKinds.AfterMethodBodySuccess : 0;
JoinPointKinds exceptionKinds = (attribute.ExceptionLevel != LogLevel.None) ? JoinPointKinds.AfterMethodBodyException : 0;
// Sum of all required join point kinds;
JoinPointKinds effectiveKinds = enterKinds | exitKinds | exceptionKinds;
// Ensure there is at least one join point the logging advice applies to.
if (effectiveKinds != 0) {
if (!this.perTypeLoggingDatas.ContainsKey(wovenType)) {
this.perTypeLoggingDatas.Add(wovenType, new PerTypeLoggingData());
// Logging data for the woven type.
PerTypeLoggingData perTypeLoggingData = this.perTypeLoggingDatas[wovenType];
// Field where ILog instance is stored.
FieldDefDeclaration logField = CreateField("~log4PostSharp~log", this.ilogType);
wovenType.Fields.Add(logField);
perTypeLoggingData.Log = logField;
codeWeaver.AddTypeLevelAdvice(new LogInitializeAdvice(this),
JoinPointKinds.BeforeStaticConstructor,
new Singleton<TypeDefDeclaration>(wovenType));
}
codeWeaver.AddMethodLevelAdvice(advice,
new Singleton<MethodDefDeclaration>(methodDef),
effectiveKinds,
null);
}
}
}
}
}
}
