Package io.micronaut.aop.chain

Class ConstructorInterceptorChain<T>

java.lang.Object

io.micronaut.aop.chain.ConstructorInterceptorChain<T>

Type Parameters:

T - The bean type

All Implemented Interfaces:

ConstructorInvocationContext<T>, InvocationContext<T,T>, AnnotationMetadata, AnnotationMetadataDelegate, AnnotationMetadataProvider, AnnotationSource, AttributeHolder, MutableAttributeHolder, Executable<T,T>

@Internal
public final class ConstructorInterceptorChain<T>
extends Object
implements ConstructorInvocationContext<T>

Implementation of InvocationContext for constructor interception.

Since:

3.0.0

Author:

graemerocher

Field Summary

Fields

Modifier and Type	Field	Description
protected MutableConvertibleValues<Object>	attributes
protected int	index
protected final int	interceptorCount
protected final Interceptor<T,T>[]	interceptors
protected static final org.slf4j.Logger	LOG	Used by subclasses!
protected final Object[]	originalParameters
protected Map<String,MutableArgumentValue<?>>	parameters

Fields inherited from interface io.micronaut.core.annotation.AnnotationMetadata

CLASS_NAME_SUFFIX, EMPTY_METADATA, VALUE_MEMBER

Fields inherited from interface io.micronaut.core.annotation.AnnotationSource

EMPTY

Method Summary

Modifier and Type	Method	Description
@NonNull Argument<?>[]	getArguments()	The required argument types.
@NonNull MutableConvertibleValues<Object>	getAttributes()	Overrides the default AttributeHolder.getAttributes() method to return a mutable object.
@NonNull BeanConstructor<T>	getConstructor()
@NonNull InterceptorKind	getKind()
@NonNull Map<String,MutableArgumentValue<?>>	getParameters()	Returns the current parameters as a map of mutable argument values.
@NonNull Object[]	getParameterValues()	Returns the current state of the parameters as an array by parameter index.
T	getTarget()
static <T1> T1	instantiate(@NonNull BeanResolutionContext resolutionContext, @NonNull BeanContext beanContext, @Nullable List<BeanRegistration<Interceptor<T1,T1>>> interceptors, @NonNull BeanDefinition<T1> definition, @NonNull BeanConstructor<T1> constructor, int additionalProxyConstructorParametersCount, @NonNull Object... parameters)	Internal methods that handles the logic of instantiating a bean that has constructor interception applied.
static <T1> T1	instantiate(@NonNull BeanResolutionContext resolutionContext, @NonNull BeanContext beanContext, @Nullable List<BeanRegistration<Interceptor<T1,T1>>> interceptors, @NonNull BeanDefinition<T1> definition, @NonNull BeanConstructor<T1> constructor, @NonNull Object... parameters)	Deprecated.
T	invoke(T instance, Object... arguments)	Invokes the method.
T	proceed()	Proceeds with the invocation.
T	proceed(@NonNull Interceptor from)	Proceeds with the invocation using the given interceptor as a position to start from.
protected static @NonNull Collection<AnnotationValue<?>>	resolveInterceptorValues(@NonNull AnnotationMetadata annotationMetadata, @NonNull InterceptorKind kind)	Resolve interceptor binding for the given annotation metadata and kind.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.micronaut.core.annotation.AnnotationMetadata

enumValuesSet, enumValuesSet, getValues, hasDeclaredStereotype, hasEvaluatedExpressions, hasStereotypeNonRepeating, isAnnotationPresent, isDeclaredAnnotationPresent

Methods inherited from interface io.micronaut.core.annotation.AnnotationMetadataDelegate

booleanValue, booleanValue, booleanValue, booleanValue, classValue, classValue, classValue, classValue, classValues, classValues, classValues, classValues, copyAnnotationMetadata, doubleValue, doubleValue, doubleValue, enumValue, enumValue, enumValue, enumValue, enumValues, enumValues, enumValues, enumValues, findAnnotation, findAnnotation, findDeclaredAnnotation, findDeclaredAnnotation, findRepeatableAnnotation, findRepeatableAnnotation, getAnnotation, getAnnotation, getAnnotationNameByStereotype, getAnnotationNameByStereotype, getAnnotationNames, getAnnotationNamesByStereotype, getAnnotationNamesByStereotype, getAnnotationType, getAnnotationType, getAnnotationTypeByStereotype, getAnnotationTypeByStereotype, getAnnotationTypesByStereotype, getAnnotationTypesByStereotype, getAnnotationTypesByStereotype, getAnnotationValuesByName, getAnnotationValuesByStereotype, getAnnotationValuesByType, getDeclaredAnnotation, getDeclaredAnnotation, getDeclaredAnnotationNameByStereotype, getDeclaredAnnotationNames, getDeclaredAnnotationNamesByStereotype, getDeclaredAnnotationTypeByStereotype, getDeclaredAnnotationTypeByStereotype, getDeclaredAnnotationValuesByName, getDeclaredAnnotationValuesByType, getDeclaredMetadata, getDeclaredStereotypeAnnotationNames, getDefaultValue, getDefaultValue, getDefaultValue, getDefaultValue, getDefaultValues, getStereotypeAnnotationNames, getTargetAnnotationMetadata, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValues, getValues, hasAnnotation, hasAnnotation, hasDeclaredAnnotation, hasDeclaredAnnotation, hasDeclaredStereotype, hasDeclaredStereotype, hasDeclaredStereotype, hasPropertyExpressions, hasSimpleAnnotation, hasSimpleDeclaredAnnotation, hasStereotype, hasStereotype, hasStereotype, hasStereotype, intValue, intValue, intValue, isAnnotationPresent, isDeclaredAnnotationPresent, isEmpty, isFalse, isFalse, isPresent, isPresent, isRepeatableAnnotation, isRepeatableAnnotation, isTrue, isTrue, longValue, longValue, stringValue, stringValue, stringValue, stringValue, stringValues, stringValues, stringValues, stringValues, synthesize, synthesize, synthesizeAll, synthesizeAnnotationsByType, synthesizeDeclared, synthesizeDeclared, synthesizeDeclared, synthesizeDeclaredAnnotationsByType

Methods inherited from interface io.micronaut.core.annotation.AnnotationMetadataProvider

getAnnotationMetadata

Methods inherited from interface io.micronaut.core.attr.AttributeHolder

getAttribute, getAttribute

Methods inherited from interface io.micronaut.aop.ConstructorInvocationContext

getDeclaringType, proceed

Methods inherited from interface io.micronaut.aop.InvocationContext

getParameters, getParameterValueMap, getParameterValues, setAttribute

Methods inherited from interface io.micronaut.core.attr.MutableAttributeHolder

getAttributes, removeAttribute

Field Details

LOG

protected static final org.slf4j.Logger LOG

Used by subclasses!

interceptors

protected final Interceptor<T,T>[] interceptors

originalParameters

protected final Object[] originalParameters

interceptorCount

protected final int interceptorCount

attributes

protected volatile MutableConvertibleValues<Object> attributes

index

protected int index

parameters

protected volatile Map<String,MutableArgumentValue<?>> parameters

Method Details

getKind

@NonNull
public @NonNull InterceptorKind getKind()

Specified by:

getKind in interface InvocationContext<T,T>

Returns:

An enum representing the kind of interception that is occurring.

getTarget

public T getTarget()

Specified by:

getTarget in interface InvocationContext<T,T>

Returns:

The target object

proceed

public T proceed()
          throws RuntimeException

Description copied from interface: InvocationContext

Proceeds with the invocation. If this is the last interceptor in the chain then the final implementation method is invoked

Specified by:

proceed in interface ConstructorInvocationContext<T>

Specified by:

proceed in interface InvocationContext<T,T>

Returns:

The return value of the method

Throws:

RuntimeException - chain may throw RTE

getArguments

@NonNull
public @NonNull Argument<?>[] getArguments()

Description copied from interface: Executable

The required argument types.

Specified by:

getArguments in interface Executable<T,T>

Returns:

The arguments

invoke

public T invoke(T instance,
 Object... arguments)

Description copied from interface: Executable

Invokes the method.

Specified by:

invoke in interface Executable<T,T>

Parameters:

instance - The instance. Nullable only if it's a static method call.

arguments - The arguments

Returns:

The result

getConstructor

@NonNull
public @NonNull BeanConstructor<T> getConstructor()

Specified by:

getConstructor in interface ConstructorInvocationContext<T>

Returns:

The bean type.

instantiate

@Internal
@NonNull
@Deprecated
public static <T1> T1 instantiate(@NonNull
 @NonNull BeanResolutionContext resolutionContext,
 @NonNull
 @NonNull BeanContext beanContext,
 @Nullable
 @Nullable List<BeanRegistration<Interceptor<T1,T1>>> interceptors,
 @NonNull
 @NonNull BeanDefinition<T1> definition,
 @NonNull
 @NonNull BeanConstructor<T1> constructor,
 @NonNull
 @NonNull Object... parameters)

Deprecated.

Internal methods that handles the logic of instantiating a bean that has constructor interception applied.

Type Parameters:

T1 - The bean type

Parameters:

resolutionContext - The resolution context

beanContext - The bean context

interceptors - The interceptors. Can be null and if so should be resolved from the context.

definition - The definition

constructor - The bean constructor

parameters - The resolved parameters

Returns:

The instantiated bean

Since:

3.0.0

instantiate

@Internal
@NonNull
public static <T1> T1 instantiate(@NonNull
 @NonNull BeanResolutionContext resolutionContext,
 @NonNull
 @NonNull BeanContext beanContext,
 @Nullable
 @Nullable List<BeanRegistration<Interceptor<T1,T1>>> interceptors,
 @NonNull
 @NonNull BeanDefinition<T1> definition,
 @NonNull
 @NonNull BeanConstructor<T1> constructor,
 int additionalProxyConstructorParametersCount,
 @NonNull
 @NonNull Object... parameters)

Internal methods that handles the logic of instantiating a bean that has constructor interception applied.

Type Parameters:

T1 - The bean type

Parameters:

resolutionContext - The resolution context

beanContext - The bean context

interceptors - The interceptors. Can be null and if so should be resolved from the context.

definition - The definition

constructor - The bean constructor

additionalProxyConstructorParametersCount - The additional proxy constructor parameters count

parameters - The resolved parameters

Returns:

The instantiated bean

Since:

3.0.0

getParameterValues

@NonNull
public @NonNull Object[] getParameterValues()

Description copied from interface: InvocationContext

Returns the current state of the parameters as an array by parameter index. Note that mutations to the array have no effect. If you wish to mutate the parameters use InvocationContext.getParameters() and the MutableArgumentValue interface instead

Specified by:

getParameterValues in interface InvocationContext<B,R>

Returns:

The bound ArgumentValue instances

getAttributes

@NonNull
public @NonNull MutableConvertibleValues<Object> getAttributes()

Description copied from interface: MutableAttributeHolder

Overrides the default AttributeHolder.getAttributes() method to return a mutable object.

Specified by:

getAttributes in interface AttributeHolder

Specified by:

getAttributes in interface MutableAttributeHolder

Returns:

The mutable attributes

getParameters

@NonNull
public @NonNull Map<String,MutableArgumentValue<?>> getParameters()

Description copied from interface: InvocationContext

Returns the current parameters as a map of mutable argument values. This method allows mutation of the argument values and is generally more expensive than using InvocationContext.getParameterValues() and Executable.getArguments() directly, hence should be used with care.

Specified by:

getParameters in interface InvocationContext<B,R>

Returns:

The bound ArgumentValue instances

proceed

public T proceed(@NonNull
 @NonNull Interceptor from)
          throws RuntimeException

Description copied from interface: InvocationContext

Proceeds with the invocation using the given interceptor as a position to start from. Mainly useful for Introduction advise where you want to invoke the target multiple times or where you want to repeat the entire chain.

Specified by:

proceed in interface InvocationContext<B,R>

Parameters:

from - The interceptor to start from (note: will not be included in the execution)

Returns:

The return value of the method

Throws:

RuntimeException - chain may throw RTE

resolveInterceptorValues

@NonNull
protected static @NonNull Collection<AnnotationValue<?>> resolveInterceptorValues(@NonNull
 @NonNull AnnotationMetadata annotationMetadata,
 @NonNull
 @NonNull InterceptorKind kind)

Resolve interceptor binding for the given annotation metadata and kind.

Parameters:

annotationMetadata - The annotation metadata

kind - The kind

Returns:

The binding

Since:

3.3.0