+dZddlmZddlmZddlmZddlZddlZddlmZddl Z Gdde Z Gd d e Z Gd d e Z Gd deZGddeZGddeZdZdZdZdZdZGddeZGddeZy)aA module for extracting properties from Python dicts. A property is a string that represents a value in a JSON-serializable dict. For example, "x.y" matches 1 in {'x': {'y': 1, 'z': 2}, 'y': [1, 2, 3]}. See PropertySelector and PropertyGetter's docstrings for example usage. The grammar for properties is as follows: path ::= primary ::= primary '.' path primary ::= attribute ::= attribute '[' ']' ::= attribute '[' index ']' index ::= Any non-negative integer. Integers beginning with 0 are interpreted as base-10. attribute := Any non-empty sequence of characters; The special characters '[', ']', and '.' may appear if they are preceded by '\'. The literal '\' may appear if it is itself preceded by a '\'. There are three operators in the language of properties: '.': Attribute access which allows one to select the key of a dict. '[]': List operator which allows one to apply the rest of the property to each element of a list. '[INDEX]': List access which allows one to select an element of a list. )absolute_import)division)unicode_literalsN) tokenizerceZdZdZy)Errorz0Base class for exceptions raised by this module.N__name__ __module__ __qualname____doc__7lib/googlecloudsdk/api_lib/compute/property_selector.pyrrBs8rrceZdZdZy)IllegalPropertyz7Raised for properties that are syntactically incorrect.Nr rrrrrFs?rrceZdZdZy)ConflictingPropertieszRaised when a property conflicts with another. Examples of conflicting properties: - "a.b" and "a[0].b" - "a[0].b" and "a[].b" Nr rrrrrJsrrc eZdZy)_KeyNr r r rrrrrTrrc eZdZy)_IndexNrrrrrrXrrrceZdZdZdZy)_Slicec0t|t|k(S)N)type)selfothers r__eq__z _Slice.__eq__^s :e $$rcy)Nrr)rs r__hash__z_Slice.__hash__as rN)r r r r!r#rrrrr\s % rrctj|gd}|Dcgc]}|s| }}|stdj|g}|r&t |dtj stdj||j t|d|dd}|s |St |dtjstdj|t |dtjr|ddk(rt|dkrtdj||dd}t |dtjr'|ddk(r|j t|dd}nt |dtj ri|djrVt|dk\rHt |dtjr+|ddk(r#|j t|d|dd}ntdj||s |St|dkDr,t |dtjr|dd k(r|dd}tdj||Scc}w) z2Parses the given tokens that represent a property.)[].zillegal property: {0}rNr%r&r') rTokenizerformat isinstanceLiteralappendr Separatorlenrisdigitr)proptokenstokenress r_Parser6esR   dO 4&% /veEv& /  188> ?? # fQi!2!2 3 3::4@ AAJJtF1I ABZF  V *S fQi!4!4 5 3::4@ AA&)Y001fQi36F Vq5< ?34Lz!"~ .3 ??  @s<CcZt|trYtjt |j }t j|D]\}}t|||<|St|tr|Dcgc] }t|c}Stj|Scc}w)z@Recursively converts a JSON-serializable dict to an OrderedDict.) r,r8 collections OrderedDictsorteditemssix iteritems_DictToOrderedDictr;copydeepcopy)r<new_objkeyvaluer>s rrFrFsT%%fSYY[&9:GmmG, U'.gcl- N#t14 5 t $ 55 ==  6s>B(c$t|s t|Stj}|D].}|s|d|dd}}||vr||j |)|g||<0t |t rtj}tj|D]P\}}||vs t|r!t|||} | (| |t|<7t|||t|<R|r|Syt |tr|s|Stg} |D]3}t |ts|t|ks#| j|5|j!t#} | r@g} t%|D]/\} } | | vr || | z}n| }| j t| |1nJdgt|z} | D]6}||}t|rt|||| |<&t||| |<8| D cgc]} | |  c} r| Syt|Scc} w)zERetains the data specified by properties in a JSON-serializable dict.rr(N)allrFr@rAr.r,r8rDrE_Filterstrr;setrr0addr:r enumerate)r< properties head_to_tailr2headtail filtered_objrJrKr5indices slice_tailir>indexs rrNrNs Z c ""((*,d 7DHDd  T!!$'"V T T**,LmmL1 U  u:C%(# _%(LS "#5c#h#?,s3x 2  #t  j"gG C S3s8^ C!!&(+J cs^'!T <#A3*!* 74,- $FSX c%!%( z?s5z:6#e*)#e*5#e* 1 01 j  c "" 2s 0H 8H cnt|trXt|dtrE|j|d}|yt |dk(r||||d<yt |dd||yt|t r[t|dtrH|d}|t |dz kDryt |dk(r|||||<yt |dd|||yt|t rRt|dtr>t|D]/\}}t |dk(r ||||< t |dd||1yyy)aApplies the given function to the property pointed to by components. For example: obj = {'x': {'y': 1, 'z': 2}, 'y': [1, 2, 3]} _ApplyTransformation(_Parse('x.y'), lambda x: x* 2, obj) results in obj becoming: {'x': {'y': 2, 'z': 2}, 'y': [1, 2, 3]} Args: components: A parsed property. func: The function to apply. obj: A JSON-serializable dict to apply the function to. rNr() r,r8rr:r0_ApplyTransformationr;rrrR)r=funcr<validxrZs rr]r]s("Tz*Q-> ''*Q- C {  :!9c*Q-:ab>45#tJqM6!B Q-C SX\  :!c#hc#h:ab>4S:#tJqM6!BC.3 ZA cAZ^T37 !"CrceZdZdZddZdZy)PropertySelectoraKExtracts and/or transforms values in JSON-serializable dicts. For example: selector = PropertySelector( properties=['x.y', 'y[0]'], transformations=[ ('x.y', lambda x: x + 5), ('y[]', lambda x: x * 5), ]) selector.SelectProperties( {'x': {'y': 1, 'z': 2}, 'y': [1, 2, 3]}) returns: collections.OrderedDict([ ('x', collections.OrderedDict([('y', 6)])), ('y', [5]) ]) Items are extracted in the order requested. Transformations are applied in the order they appear. Nc|r|Dcgc] }t|c}|_nd|_|r&|Dcgc]\}}t||fc}}|_nd|_||_||_ycc}wcc}}w)z9Creates a new PropertySelector with the given properties.N)r6_compiled_properties_compiled_transformationsrStransformations)rrSrfpr^s r__init__zPropertySelector.__init___sx6@"Aj6!9j"Ad"&d+:(<+:46!9d ?(rws'R'' . 9I9@e@E3S V @ F0 IX*8Z4v4nEVEr