Package ganeti :: Module opcodes_base

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Module opcodes_base

source code

OpCodes base module

This module implements part of the data structures which define the cluster operations - the so-called opcodes.

Every operation which modifies the cluster state is expressed via opcodes.

Classes

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_AutoOpParamSlots
Meta class for opcode definitions.

BaseOpCode
A simple serializable object.

Functions

[hide private]

array of strings

_NameComponents(name)
Split an opcode class name into its components

source code

string

_NameToId(name)
Convert an opcode class name to an OP_ID.

source code

string

NameToReasonSrc(name, prefix)
Convert an opcode class name to a source string for the reason trail

source code

callable

BuildJobDepCheck(relative)
Builds check for job dependencies (DEPEND_ATTR).

source code

Variables

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_OPID_RE = re.compile("([a-z])([A-Z])")
OP_ID conversion regular expression

SUMMARY_PREFIX = {"CLUSTER_": "C_", "GROUP_": "G_", "NODE_": "...

DEPEND_ATTR = "depends"
Attribute name for dependencies

COMMENT_ATTR = "comment"
Attribute name for comment

TNoRelativeJobDependencies = BuildJobDepCheck(False)

Imports: copy, logging, re, constants, errors, ht, outils

Function Details

[hide private]

_NameComponents(name)

source code

Split an opcode class name into its components

Parameters:

name (string) - the class name, as OpXxxYyy

Returns: array of strings

the components of the name

_NameToId(name)

source code

Convert an opcode class name to an OP_ID.

Parameters:

name (string) - the class name, as OpXxxYyy

Returns: string

the name in the OP_XXXX_YYYY format

NameToReasonSrc(name, prefix)

source code

Convert an opcode class name to a source string for the reason trail

Parameters:

name (string) - the class name, as OpXxxYyy
prefix (string) - the prefix that will be prepended to the opcode name

Returns: string

the name in the OP_XXXX_YYYY format

BuildJobDepCheck(relative)

source code

Builds check for job dependencies (DEPEND_ATTR).

Parameters:

relative (bool) - Whether to accept relative job IDs (negative)

Returns: callable

Variables Details

[hide private]

SUMMARY_PREFIX

Value:

{"CLUSTER_": "C_", "GROUP_": "G_", "NODE_": "N_", "INSTANCE_": "I_",}