a sd_áã@s6dZddlZddlZddlZddlZGdd„dƒZdS)z)DNS nodes. A node is a set of rdatasets.éNc@sŠeZdZdZdgZdd„Zdd„Zdd„Zd d „Zd d „Z d d„Z dd„Z e j jdfdd„Ze j jdfdd„Ze j jfdd„Zdd„ZdS)ÚNodezA Node is a set of rdatasets.Ú rdatasetscCs g|_dS©N©r©Úself©rú*/usr/lib/python3/dist-packages/dns/node.pyÚ__init__!sz Node.__init__cKsRt ¡}|jD]2}t|ƒdkr| |j|fi|¤Ž¡| d¡q| ¡dd…S)a-Convert a node to text format. Each rdataset at the node is printed. Any keyword arguments to this method are passed on to the rdataset's to_text() method. *name*, a ``dns.name.Name`` or ``str``, the owner name of the rdatasets. Returns a ``str``. rÚ Néÿÿÿÿ)ÚioÚStringIOrÚlenÚwriteÚto_textÚgetvalue)rÚnameÚkwÚsÚrdsrrr r%s    z Node.to_textcCsdtt|ƒƒdS)Nz )ÚstrÚidrrrr Ú__repr__9sz Node.__repr__cCs<|jD]}||jvrdSq|jD]}||jvr"dSq"dS)NFTr)rÚotherZrdrrr Ú__eq__<s    z Node.__eq__cCs | |¡ Sr)r)rrrrr Ú__ne__Hsz Node.__ne__cCs t|jƒSr)rrrrrr Ú__len__Ksz Node.__len__cCs t|jƒSr)Úiterrrrrr Ú__iter__Nsz Node.__iter__FcCsH|jD]}| |||¡r|Sq|s*t‚tj ||¡}|j |¡|S)aûFind an rdataset matching the specified properties in the current node. *rdclass*, an ``int``, the class of the rdataset. *rdtype*, an ``int``, the type of the rdataset. *covers*, an ``int`` or ``None``, the covered type. Usually this value is ``dns.rdatatype.NONE``, but if the rdtype is ``dns.rdatatype.SIG`` or ``dns.rdatatype.RRSIG``, then the covers value will be the rdata type the SIG/RRSIG covers. The library treats the SIG and RRSIG types as if they were a family of types, e.g. RRSIG(A), RRSIG(NS), RRSIG(SOA). This makes RRSIGs much easier to work with than if RRSIGs covering different rdata types were aggregated into a single RRSIG rdataset. *create*, a ``bool``. If True, create the rdataset if it is not found. Raises ``KeyError`` if an rdataset of the desired type and class does not exist and *create* is not ``True``. Returns a ``dns.rdataset.Rdataset``. )rÚmatchÚKeyErrorÚdnsÚrdatasetÚRdatasetÚappend©rÚrdclassÚrdtypeÚcoversZcreaterrrr Ú find_rdatasetQs   zNode.find_rdatasetcCs0z| ||||¡}Wnty*d}Yn0|S)açGet an rdataset matching the specified properties in the current node. None is returned if an rdataset of the specified type and class does not exist and *create* is not ``True``. *rdclass*, an ``int``, the class of the rdataset. *rdtype*, an ``int``, the type of the rdataset. *covers*, an ``int``, the covered type. Usually this value is dns.rdatatype.NONE, but if the rdtype is dns.rdatatype.SIG or dns.rdatatype.RRSIG, then the covers value will be the rdata type the SIG/RRSIG covers. The library treats the SIG and RRSIG types as if they were a family of types, e.g. RRSIG(A), RRSIG(NS), RRSIG(SOA). This makes RRSIGs much easier to work with than if RRSIGs covering different rdata types were aggregated into a single RRSIG rdataset. *create*, a ``bool``. If True, create the rdataset if it is not found. Returns a ``dns.rdataset.Rdataset`` or ``None``. N)r+r"r'rrr Ú get_rdatasetus   zNode.get_rdatasetcCs&| |||¡}|dur"|j |¡dS)aDDelete the rdataset matching the specified properties in the current node. If a matching rdataset does not exist, it is not an error. *rdclass*, an ``int``, the class of the rdataset. *rdtype*, an ``int``, the type of the rdataset. *covers*, an ``int``, the covered type. N)r,rÚremove)rr(r)r*rrrr Údelete_rdataset•s zNode.delete_rdatasetcCs:t|tjjƒstdƒ‚| |j|j|j¡|j   |¡dS)aÅReplace an rdataset. It is not an error if there is no rdataset matching *replacement*. Ownership of the *replacement* object is transferred to the node; in other words, this method does not store a copy of *replacement* at the node, it stores *replacement* itself. *replacement*, a ``dns.rdataset.Rdataset``. Raises ``ValueError`` if *replacement* is not a ``dns.rdataset.Rdataset``. zreplacement is not an rdatasetN) Ú isinstancer#r$r%Ú ValueErrorr.r(r)r*rr&)rZ replacementrrr Úreplace_rdataset¦s  ÿzNode.replace_rdatasetN)Ú__name__Ú __module__Ú __qualname__Ú__doc__Ú __slots__r rrrrrr r#Z rdatatypeZNONEr+r,r.r1rrrr rs" ÿ $ÿ r)r5r Z dns.rdatasetr#Z dns.rdatatypeZ dns.rendererrrrrr Ús