EVOLUTION-MANAGER
Edit File: Field.cpython-36.pyc
3 x?ag� � @ s� d Z ddlmZ ddlmZ ddlmZ ddlmZ ddlT ddlmZ dd lZG d d � d e �Z G d d � d e �Z G dd� de �Z G dd� de �Z G dd� de �ZG dd� de �ZG dd� de �ZG dd� de�ZG dd� de �ZG d d � d e�Zd S ) z� Field - base class for a field of a collection of statistics $Id: //eng/vdo-releases/aluminum/src/python/vdo/statistics/Field.py#2 $ � )�absolute_import)�division)�print_function)�unicode_literals)�*� )� LabeledValueNc @ sZ e Zd ZdZejd�Zejd�Zejd�Ze dd� �Z dd� Z d d � Z d d � Z d d� ZdS )�FieldzD Field is the base class for a field of a statistics structure. z ([A-Z][a-z])z([a-z])([A-Z])z\$([a-zA-Z0-9_]+)c C s$ | j jdd� |�}| jjdd� |�S )a Convert a camel-cased string to a set of space separated, lower case words. Preserves uppercase acronyms, so 'launchVDOErrorCount' becomes 'launch VDO error count'. :param string: The string to convert :return: The converted string c S s d| j � j� S )N� )�group�lower)�match� r �/usr/lib/python3.6/Field.py�<lambda>5 s z Field._decamel.<locals>.<lambda>c S s dj | j� �S )Nr )�join�groups)r r r r r 7 s )� decamelRE1�sub� decamelRE2)�cls�stringZloweredr r r �_decamel) s zField._decamelc s | j jd|�� � fdd�S )z� Convert a string describing how to derive a field's value into a lambda. :param string The string to convert :return: An equivalent lambda z"parent.getSampleValue(stats, "\1")c s t � �S )N)�eval)�stats�parent)� derivationr r r C s z'Field._generateLambda.<locals>.<lambda>)� fieldNamesr )�selfr r )r r �_generateLambda9 s zField._generateLambdac K s� || _ |jdd�| _| jdkr(|| j n|| _|jdd�| _| jrV|jd| j| j ��nd| _| j|jdd��| _|jd d�}|dk| _ d j | j d �}| j|r�|n|�| _ |r�t d j |j � ���dS ) a� Create a new field. :param name: The name of the field :param cType: The class representing the C representation for this field when sampled via an ioctl :param **kwargs: Keyword arguments which may be: available: Specifies python code to apply to other fields of the parent structure to decide whether this value is available. Defaults to True. derived: Specifies python code to apply to other fields of the parent structure to derive the value of this field. Defaults to None. display: If not True, this field will not be included in labeled output. Defaults to True. label: The label for this field. If unspecified, the label will be derived from the field name. length: if > 1, indicates this field is an array of the specified cType, otherwise is is a scalar. Defaults to 1. �lengthr �displayT�labelN� available�True�derivedzgetattr(stats, '{name}'))�namez unknown arguments to Field: {0})r& �popr �cTyper! r r" r r# ZinStruct�format�getValue� Exception�keys)r r& r( �kwargsr% Z defaultValuer r r �__init__E s zField.__init__c C s | j ||�st� S | j||�S )z� Extract the value for this field from a sample. :param stats: The raw stats returned from an ioctl :param parent: The parent of this field :return: The value of this field in the current sample )r# � NotAvailabler* )r r r r r r � extractSamplep s zField.extractSamplec C s t j|| j |�S )z� Label a sampled value for this field. :param sample: The sampled field value :param prefix: The prefix for the label :return: A LabeledValue for a value of this field )r Zmaker" )r �sample�prefixr r r �labeled~ s z Field.labeledN)�__name__� __module__� __qualname__�__doc__�re�compiler r r � classmethodr r r. r0 r3 r r r r r ! s +r c s e Zd ZdZ� fdd�Z� ZS )� IntegerFieldz4 Base class for fields which are integer types. c s( t t| �j||�}t|t�r |S t|�S )z :inherit: )�superr; r0 � isinstance�int)r r r r1 )� __class__r r r0 � s zIntegerField.extractSample)r4 r5 r6 r7 r0 � __classcell__r r )r? r r; � s r; c s( e Zd Z� fdd�Z� fdd�Z� ZS )� BoolFieldc s t t| �j|tf|� d S )N)r< rA r. �c_byte)r r& r- )r? r r r. � s zBoolField.__init__c s t t| �j||�dkS )Nr )r< rA r0 )r r r )r? r r r0 � s zBoolField.extractSample)r4 r5 r6 r. r0 r@ r r )r? r rA � s rA c s e Zd Z� fdd�Z� ZS )� Uint8Fieldc s t t| �j|tf|� d S )N)r< rC r. rB )r r& r- )r? r r r. � s zUint8Field.__init__)r4 r5 r6 r. r@ r r )r? r rC � s rC c s e Zd Z� fdd�Z� ZS )� Uint32Fieldc s t t| �j|tf|� d S )N)r< rD r. Zc_uint)r r& r- )r? r r r. � s zUint32Field.__init__)r4 r5 r6 r. r@ r r )r? r rD � s rD c s e Zd Z� fdd�Z� ZS )� Uint64Fieldc s t t| �j|tf|� d S )N)r< rE r. Z c_ulonglong)r r& r- )r? r r r. � s zUint64Field.__init__)r4 r5 r6 r. r@ r r )r? r rE � s rE c s e Zd ZdZ� fdd�Z� ZS )�FloatingPointFieldz; Base class for fields which are floating point types. c s t tt| �j||��S )z :inherit: )�floatr< rF r0 )r r r )r? r r r0 � s z FloatingPointField.extractSample)r4 r5 r6 r7 r0 r@ r r )r? r rF � s rF c s e Zd Z� fdd�Z� ZS )� FloatFieldc s t t| �j|tf|� d S )N)r< rH r. Zc_float)r r& r- )r? r r r. � s zFloatField.__init__)r4 r5 r6 r. r@ r r )r? r rH � s rH c s e Zd Z� fdd�Z� ZS )� StringFieldc s t t| �j|tf|� d S )N)r< rI r. Zc_char)r r& r- )r? r r r. � s zStringField.__init__)r4 r5 r6 r. r@ r r )r? r rI � s rI c @ sp e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� ZdS )r/ zZ A value for numeric statistics which are currently not available; prints as 'N/A'. c C s dS )NzN/Ar )r r r r �__str__� s zNotAvailable.__str__c C s dS )Nr/ r )r r r r �__repr__� s zNotAvailable.__repr__c C s | S )Nr )r �otherr r r �__add__� s zNotAvailable.__add__c C s | S )Nr )r rL r r r �__radd__� s zNotAvailable.__radd__c C s | S )Nr )r rL r r r �__sub__� s zNotAvailable.__sub__c C s | S )Nr )r rL r r r �__rsub__� s zNotAvailable.__rsub__c C s | S )Nr )r rL r r r �__mul__� s zNotAvailable.__mul__c C s | S )Nr )r rL r r r �__rmul__� s zNotAvailable.__rmul__c C s | S )Nr )r rL r r r �__div__� s zNotAvailable.__div__c C s | S )Nr )r rL r r r �__rdiv__� s zNotAvailable.__rdiv__c C s | S )Nr )r r r r �__int__� s zNotAvailable.__int__c C s d| d j t| ��S )Nz{0:�})r) �str)r �specr r r � __format__� s zNotAvailable.__format__N)r4 r5 r6 r7 rJ rK rM rN rO rP rQ rR rS rT rU rY r r r r r/ � s r/ )r7 Z __future__r r r r Zctypesr r8 �objectr r; rA rC rD rE rF rH rI r> r/ r r r r �<module> s" i