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o �b � @ s� d Z ddlmZ G dd� de�ZG dd� d�ZG dd� d�ZG d d � d �ZG d d � d e�Z G d d� de�Z G dd� de �Z G dd� de �Z dS )zf Twisted Python Roots: an abstract hierarchy representation for Twisted. Maintainer: Glyph Lefkowitz � )�reflectc @ � e Zd ZdZdS )�NotSupportedErrorzv An exception meaning that the tree-manipulation operation you're attempting to perform is not supported. N��__name__� __module__� __qualname__�__doc__� r r �6/usr/lib/python3/dist-packages/twisted/python/roots.pyr � r c @ s$ e Zd ZdZdZdd� Zdd� ZdS )�Requestz�I am an abstract representation of a request for an entity. I also function as the response. The request is responded to by calling self.write(data) until there is no data left and then calling self.finish(). Nc C � t dt�| j� ��)z.Add some data to the response to this request.z%s.write��NotImplementedErrorr �qual� __class__)�self�datar r r �write" � z Request.writec C r )zOThe response to this request is finished; flush all data to the network stream.z %s.finishr �r r r r �finish& r zRequest.finish)r r r r � wireProtocolr r r r r r r s r c @ s e Zd ZdZdd� ZdS )�EntityaZ I am a terminal object in a hierarchy, with no children. I represent a null interface; certain non-instance objects (strings and integers, notably) are Entities. Methods on this class are suggested to be implemented, but are not required, and will be emulated on a per-protocol basis for types which do not handle them. c C r )zw I produce a stream of bytes for the request, by calling request.write() and request.finish(). z %s.renderr �r �requestr r r �render6 s z Entity.renderN)r r r r r r r r r r + s r c @ s� e Zd ZdZd dd�Zdd� Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zdd � Zd d � ZdS ) � Collectionz�I represent a static collection of entities. I contain methods designed to represent collections that can be dynamically created. Nc C s |dur || _ dS i | _ dS )zInitialize me.N��entities)r r r r r �__init__E s zCollection.__init__c C s | j �|�S )zqGet an entity that was added to me using putEntity. This method will return 'None' if it fails. )r �get�r �namer r r �getStaticEntityL � zCollection.getStaticEntityc C � dS )znSubclass this to generate an entity on demand. This method should return 'None' if it fails. Nr �r r$ r r r r �getDynamicEntityS s zCollection.getDynamicEntityc C s2 | � |�}|dur |S | �||�}|dur|S dS )a Retrieve an entity from me. I will first attempt to retrieve an entity statically; static entities will obscure dynamic ones. If that fails, I will retrieve the entity dynamically. If I cannot retrieve an entity, I will return 'None'. N)r% r) )r r$ r �entr r r � getEntityY s zCollection.getEntityc C s || j |< dS )zlStore a static reference on 'name' for 'entity'. Raises a KeyError if the operation fails. Nr �r r$ �entityr r r � putEntityj s zCollection.putEntityc C s | j |= dS )zaRemove a static reference for 'name'. Raises a KeyError if the operation fails. Nr r# r r r � delEntityq r& zCollection.delEntityc C r )z>Store an entity for 'name', based on the content of 'request'.z%s.storeEntity�r r r r r( r r r � storeEntityx r zCollection.storeEntityc C r )z?Remove an entity for 'name', based on the content of 'request'.z%s.removeEntityr0 r( r r r � removeEntity| r zCollection.removeEntityc C � | j �� S )zlRetrieve a list of all name, entity pairs that I store references to. See getStaticEntity. )r �itemsr r r r �listStaticEntities� � z Collection.listStaticEntitiesc C � g S )zaA list of all name, entity that I can generate on demand. See getDynamicEntity. r r r r r �listDynamicEntities� � z Collection.listDynamicEntitiesc C s | � � | �|� S )zURetrieve a list of all name, entity pairs I contain. See getEntity. )r5 r8 r r r r � listEntities� s zCollection.listEntitiesc C r3 )zkRetrieve a list of the names of entities that I store references to. See getStaticEntity. )r �keysr r r r �listStaticNames� r6 zCollection.listStaticNamesc C r7 )zlRetrieve a list of the names of entities that I store references to. See getDynamicEntity. r r r r r �listDynamicNames� r9 zCollection.listDynamicNamesc C s | � � S )zZRetrieve a list of all names for entities that I contain. See getEntity. )r< r r r r � listNames� s zCollection.listNames�N)r r r r r! r% r) r+ r. r/ r1 r2 r5 r8 r: r< r= r> r r r r r > s r c @ r )�ConstraintViolationz2An exception raised when a constraint is violated.Nr r r r r r@ � r r@ c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd S ) � Constrainedz?A collection that has constraints on its names and/or entities.c C r' )z�A method that determines whether an entity may be added to me with a given name. If the constraint is satisfied, return 1; if the constraint is not satisfied, either return 0 or raise a descriptive ConstraintViolation. � r r# r r r �nameConstraint� � zConstrained.nameConstraintc C r' )z�A method that determines whether an entity may be added to me. If the constraint is satisfied, return 1; if the constraint is not satisfied, either return 0 or raise a descriptive ConstraintViolation. rB r �r r- r r r �entityConstraint� rD z Constrained.entityConstraintc C s t �| ||� d S r? )r r. r, r r r �reallyPutEntity� s zConstrained.reallyPutEntityc C s4 | � |�r| �|�r| �||� dS td��td��)zfStore an entity if it meets both constraints. Otherwise raise a ConstraintViolation. zEntity constraint violated.zName constraint violated.N)rC rF rG r@ r, r r r r. � s zConstrained.putEntityN)r r r r rC rF rG r. r r r r rA � s rA c @ s$ e Zd ZdZdZdd� Zdd� ZdS )�Lockedz5A collection that can be locked from adding entities.r c C s d| _ d S )NrB ��lockedr r r r �lock� s z Locked.lockc C s | j S r? rI rE r r r rF � � zLocked.entityConstraintN)r r r r rJ rK rF r r r r rH � s rH c @ s, e Zd ZdZeZdd� Zdd� Zdd� ZdS ) � Homogenousz�A homogenous collection of entities. I will only contain entities that are an instance of the class or type specified by my 'entityType' attribute. c C s& t || j�rdS t|� d| j� d���)NrB z of incorrect type (�))� isinstance� entityTyper@ rE r r r rF � s zHomogenous.entityConstraintc C r' )N�Namer r r r r � getNameType� s zHomogenous.getNameTypec C s | j jS r? )rP r r r r r � getEntityType� rL zHomogenous.getEntityTypeN) r r r r �objectrP rF rR rS r r r r rM � s rM N) r �twisted.pythonr r r r r r � Exceptionr@ rA rH rM r r r r �<module> s m$
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