Meshroom/meshroom/core/desc.py
Candice Bentéjac 659c8a05ed Add abstract InitNode
InitNode is an abstract class which is meant to be inherited
by all the initialization nodes (such as CameraInit), included
those that might be created by the user.

InitNode contains methods that can be reimplemented by the
children classes if necessary.

This abstract class allows to keep on using scripts such as
meshroom_batch without having to modify them specifically or
being limited to using a CameraInit node.
2022-08-05 10:42:59 +02:00

581 lines
23 KiB
Python
Executable file

from meshroom.common import BaseObject, Property, Variant, VariantList, JSValue
from meshroom.core import pyCompatibility
from enum import Enum # available by default in python3. For python2: "pip install enum34"
import math
import os
import psutil
import ast
import distutils.util
import shlex
class Attribute(BaseObject):
"""
"""
def __init__(self, name, label, description, value, advanced, semantic, uid, group, enabled):
super(Attribute, self).__init__()
self._name = name
self._label = label
self._description = description
self._value = value
self._uid = uid
self._group = group
self._advanced = advanced
self._enabled = enabled
self._semantic = semantic
name = Property(str, lambda self: self._name, constant=True)
label = Property(str, lambda self: self._label, constant=True)
description = Property(str, lambda self: self._description, constant=True)
value = Property(Variant, lambda self: self._value, constant=True)
uid = Property(Variant, lambda self: self._uid, constant=True)
group = Property(str, lambda self: self._group, constant=True)
advanced = Property(bool, lambda self: self._advanced, constant=True)
enabled = Property(Variant, lambda self: self._enabled, constant=True)
semantic = Property(str, lambda self: self._semantic, constant=True)
type = Property(str, lambda self: self.__class__.__name__, constant=True)
def validateValue(self, value):
""" Return validated/conformed 'value'. Need to be implemented in derived classes.
Raises:
ValueError: if value does not have the proper type
"""
raise NotImplementedError("Attribute.validateValue is an abstract function that should be implemented in the derived class.")
def matchDescription(self, value, strict=True):
""" Returns whether the value perfectly match attribute's description.
Args:
value: the value
strict: strict test for the match (for instance, regarding a group with some parameter changes)
"""
try:
self.validateValue(value)
except ValueError:
return False
return True
class ListAttribute(Attribute):
""" A list of Attributes """
def __init__(self, elementDesc, name, label, description, group='allParams', advanced=False, semantic='', enabled=True, joinChar=' '):
"""
:param elementDesc: the Attribute description of elements to store in that list
"""
self._elementDesc = elementDesc
self._joinChar = joinChar
super(ListAttribute, self).__init__(name=name, label=label, description=description, value=[], uid=(), group=group, advanced=advanced, semantic=semantic, enabled=enabled)
elementDesc = Property(Attribute, lambda self: self._elementDesc, constant=True)
uid = Property(Variant, lambda self: self.elementDesc.uid, constant=True)
joinChar = Property(str, lambda self: self._joinChar, constant=True)
def validateValue(self, value):
if JSValue is not None and isinstance(value, JSValue):
# Note: we could use isArray(), property("length").toInt() to retrieve all values
raise ValueError("ListAttribute.validateValue: cannot recognize QJSValue. Please, use JSON.stringify(value) in QML.")
if isinstance(value, pyCompatibility.basestring):
# Alternative solution to set values from QML is to convert values to JSON string
# In this case, it works with all data types
value = ast.literal_eval(value)
if not isinstance(value, (list, tuple)):
raise ValueError('ListAttribute only supports list/tuple input values (param:{}, value:{}, type:{})'.format(self.name, value, type(value)))
return value
def matchDescription(self, value, strict=True):
""" Check that 'value' content matches ListAttribute's element description. """
if not super(ListAttribute, self).matchDescription(value, strict):
return False
# list must be homogeneous: only test first element
if value:
return self._elementDesc.matchDescription(value[0], strict)
return True
class GroupAttribute(Attribute):
""" A macro Attribute composed of several Attributes """
def __init__(self, groupDesc, name, label, description, group='allParams', advanced=False, semantic='', enabled=True, joinChar=' '):
"""
:param groupDesc: the description of the Attributes composing this group
"""
self._groupDesc = groupDesc
self._joinChar = joinChar
super(GroupAttribute, self).__init__(name=name, label=label, description=description, value={}, uid=(), group=group, advanced=advanced, semantic=semantic, enabled=enabled)
groupDesc = Property(Variant, lambda self: self._groupDesc, constant=True)
def validateValue(self, value):
""" Ensure value is compatible with the group description and convert value if needed. """
if JSValue is not None and isinstance(value, JSValue):
# Note: we could use isArray(), property("length").toInt() to retrieve all values
raise ValueError("GroupAttribute.validateValue: cannot recognize QJSValue. Please, use JSON.stringify(value) in QML.")
if isinstance(value, pyCompatibility.basestring):
# Alternative solution to set values from QML is to convert values to JSON string
# In this case, it works with all data types
value = ast.literal_eval(value)
if isinstance(value, dict):
# invalidKeys = set(value.keys()).difference([attr.name for attr in self._groupDesc])
# if invalidKeys:
# raise ValueError('Value contains key that does not match group description : {}'.format(invalidKeys))
if self._groupDesc:
commonKeys = set(value.keys()).intersection([attr.name for attr in self._groupDesc])
if not commonKeys:
raise ValueError('Value contains no key that matches with the group description: {}'.format(commonKeys))
elif isinstance(value, (list, tuple)):
if len(value) != len(self._groupDesc):
raise ValueError('Value contains incoherent number of values: desc size: {}, value size: {}'.format(len(self._groupDesc), len(value)))
else:
raise ValueError('GroupAttribute only supports dict/list/tuple input values (param:{}, value:{}, type:{})'.format(self.name, value, type(value)))
return value
def matchDescription(self, value, strict=True):
"""
Check that 'value' contains the exact same set of keys as GroupAttribute's group description
and that every child value match corresponding child attribute description.
Args:
value: the value
strict: strict test for the match (for instance, regarding a group with some parameter changes)
"""
if not super(GroupAttribute, self).matchDescription(value):
return False
attrMap = {attr.name: attr for attr in self._groupDesc}
matchCount = 0
for k, v in value.items():
# each child value must match corresponding child attribute description
if k in attrMap and attrMap[k].matchDescription(v, strict):
matchCount += 1
if strict:
return matchCount == len(value.items()) == len(self._groupDesc)
return matchCount > 0
def retrieveChildrenUids(self):
allUids = []
for desc in self._groupDesc:
allUids.extend(desc.uid)
return allUids
uid = Property(Variant, retrieveChildrenUids, constant=True)
joinChar = Property(str, lambda self: self._joinChar, constant=True)
class Param(Attribute):
"""
"""
def __init__(self, name, label, description, value, uid, group, advanced, semantic, enabled):
super(Param, self).__init__(name=name, label=label, description=description, value=value, uid=uid, group=group, advanced=advanced, semantic=semantic, enabled=enabled)
class File(Attribute):
"""
"""
def __init__(self, name, label, description, value, uid, group='allParams', advanced=False, semantic='', enabled=True):
super(File, self).__init__(name=name, label=label, description=description, value=value, uid=uid, group=group, advanced=advanced, semantic=semantic, enabled=enabled)
def validateValue(self, value):
if not isinstance(value, pyCompatibility.basestring):
raise ValueError('File only supports string input (param:{}, value:{}, type:{})'.format(self.name, value, type(value)))
return os.path.normpath(value).replace('\\', '/') if value else ''
class BoolParam(Param):
"""
"""
def __init__(self, name, label, description, value, uid, group='allParams', advanced=False, semantic='', enabled=True):
super(BoolParam, self).__init__(name=name, label=label, description=description, value=value, uid=uid, group=group, advanced=advanced, semantic=semantic, enabled=enabled)
def validateValue(self, value):
try:
if isinstance(value, pyCompatibility.basestring):
# use distutils.util.strtobool to handle (1/0, true/false, on/off, y/n)
return bool(distutils.util.strtobool(value))
return bool(value)
except:
raise ValueError('BoolParam only supports bool value (param:{}, value:{}, type:{})'.format(self.name, value, type(value)))
class IntParam(Param):
"""
"""
def __init__(self, name, label, description, value, range, uid, group='allParams', advanced=False, semantic='', enabled=True):
self._range = range
super(IntParam, self).__init__(name=name, label=label, description=description, value=value, uid=uid, group=group, advanced=advanced, semantic=semantic, enabled=enabled)
def validateValue(self, value):
# handle unsigned int values that are translated to int by shiboken and may overflow
try:
return long(value) # Python 2
except NameError:
return int(value) # Python 3
except:
raise ValueError('IntParam only supports int value (param:{}, value:{}, type:{})'.format(self.name, value, type(value)))
range = Property(VariantList, lambda self: self._range, constant=True)
class FloatParam(Param):
"""
"""
def __init__(self, name, label, description, value, range, uid, group='allParams', advanced=False, semantic='', enabled=True):
self._range = range
super(FloatParam, self).__init__(name=name, label=label, description=description, value=value, uid=uid, group=group, advanced=advanced, semantic=semantic, enabled=enabled)
def validateValue(self, value):
try:
return float(value)
except:
raise ValueError('FloatParam only supports float value (param:{}, value:{}, type:{})'.format(self.name, value, type(value)))
range = Property(VariantList, lambda self: self._range, constant=True)
class ChoiceParam(Param):
"""
"""
def __init__(self, name, label, description, value, values, exclusive, uid, group='allParams', joinChar=' ', advanced=False, semantic='', enabled=True):
assert values
self._values = values
self._exclusive = exclusive
self._joinChar = joinChar
self._valueType = type(self._values[0]) # cast to value type
super(ChoiceParam, self).__init__(name=name, label=label, description=description, value=value, uid=uid, group=group, advanced=advanced, semantic=semantic, enabled=enabled)
def conformValue(self, val):
""" Conform 'val' to the correct type and check for its validity """
val = self._valueType(val)
if val not in self.values:
raise ValueError('ChoiceParam value "{}" is not in "{}".'.format(val, str(self.values)))
return val
def validateValue(self, value):
if self.exclusive:
return self.conformValue(value)
if not isinstance(value, pyCompatibility.Iterable):
raise ValueError('Non exclusive ChoiceParam value should be iterable (param:{}, value:{}, type:{})'.format(self.name, value, type(value)))
return [self.conformValue(v) for v in value]
values = Property(VariantList, lambda self: self._values, constant=True)
exclusive = Property(bool, lambda self: self._exclusive, constant=True)
joinChar = Property(str, lambda self: self._joinChar, constant=True)
class StringParam(Param):
"""
"""
def __init__(self, name, label, description, value, uid, group='allParams', advanced=False, semantic='', enabled=True):
super(StringParam, self).__init__(name=name, label=label, description=description, value=value, uid=uid, group=group, advanced=advanced, semantic=semantic, enabled=enabled)
def validateValue(self, value):
if not isinstance(value, pyCompatibility.basestring):
raise ValueError('StringParam value should be a string (param:{}, value:{}, type:{})'.format(self.name, value, type(value)))
return value
class Level(Enum):
NONE = 0
NORMAL = 1
INTENSIVE = 2
class Range:
def __init__(self, iteration=0, blockSize=0, fullSize=0):
self.iteration = iteration
self.blockSize = blockSize
self.fullSize = fullSize
@property
def start(self):
return self.iteration * self.blockSize
@property
def effectiveBlockSize(self):
remaining = (self.fullSize - self.start) + 1
return self.blockSize if remaining >= self.blockSize else remaining
@property
def end(self):
return self.start + self.effectiveBlockSize
@property
def last(self):
return self.end - 1
def toDict(self):
return {
"rangeIteration": self.iteration,
"rangeStart": self.start,
"rangeEnd": self.end,
"rangeLast": self.last,
"rangeBlockSize": self.blockSize,
"rangeEffectiveBlockSize": self.effectiveBlockSize,
"rangeFullSize": self.fullSize,
}
class Parallelization:
def __init__(self, staticNbBlocks=0, blockSize=0):
self.staticNbBlocks = staticNbBlocks
self.blockSize = blockSize
def getSizes(self, node):
"""
Args:
node:
Returns: (blockSize, fullSize, nbBlocks)
"""
size = node.size
if self.blockSize:
nbBlocks = int(math.ceil(float(size) / float(self.blockSize)))
return self.blockSize, size, nbBlocks
if self.staticNbBlocks:
return 1, self.staticNbBlocks, self.staticNbBlocks
return None
def getRange(self, node, iteration):
blockSize, fullSize, nbBlocks = self.getSizes(node)
return Range(iteration=iteration, blockSize=blockSize, fullSize=fullSize)
def getRanges(self, node):
blockSize, fullSize, nbBlocks = self.getSizes(node)
ranges = []
for i in range(nbBlocks):
ranges.append(Range(iteration=i, blockSize=blockSize, fullSize=fullSize))
return ranges
class DynamicNodeSize(object):
"""
DynamicNodeSize expresses a dependency to an input attribute to define
the size of a Node in terms of individual tasks for parallelization.
If the attribute is a link to another node, Node's size will be the same as this connected node.
If the attribute is a ListAttribute, Node's size will be the size of this list.
"""
def __init__(self, param):
self._param = param
def computeSize(self, node):
param = node.attribute(self._param)
# Link: use linked node's size
if param.isLink:
return param.getLinkParam().node.size
# ListAttribute: use list size
if isinstance(param.desc, ListAttribute):
return len(param)
if isinstance(param.desc, IntParam):
return param.value
return 1
class MultiDynamicNodeSize(object):
"""
MultiDynamicNodeSize expresses dependencies to multiple input attributes to
define the size of a node in terms of individual tasks for parallelization.
Works as DynamicNodeSize and sum the sizes of each dependency.
"""
def __init__(self, params):
"""
Args:
params (list): list of input attributes names
"""
assert isinstance(params, (list, tuple))
self._params = params
def computeSize(self, node):
size = 0
for param in self._params:
param = node.attribute(param)
if param.isLink:
size += param.getLinkParam().node.size
elif isinstance(param.desc, ListAttribute):
size += len(param)
else:
size += 1
return size
class StaticNodeSize(object):
"""
StaticNodeSize expresses a static Node size in terms of individual tasks for parallelization.
"""
def __init__(self, size):
self._size = size
def computeSize(self, node):
return self._size
class Node(object):
"""
"""
internalFolder = '{cache}/{nodeType}/{uid0}/'
cpu = Level.NORMAL
gpu = Level.NONE
ram = Level.NORMAL
packageName = ''
packageVersion = ''
inputs = []
outputs = []
size = StaticNodeSize(1)
parallelization = None
documentation = ''
category = 'Other'
def __init__(self):
pass
def upgradeAttributeValues(self, attrValues, fromVersion):
return attrValues
@classmethod
def update(cls, node):
""" Method call before node's internal update on invalidation.
Args:
node: the BaseNode instance being updated
See Also:
BaseNode.updateInternals
"""
pass
@classmethod
def postUpdate(cls, node):
""" Method call after node's internal update on invalidation.
Args:
node: the BaseNode instance being updated
See Also:
NodeBase.updateInternals
"""
pass
def stopProcess(self, chunk):
raise NotImplementedError('No stopProcess implementation on node: {}'.format(chunk.node.name))
def processChunk(self, chunk):
raise NotImplementedError('No processChunk implementation on node: "{}"'.format(chunk.node.name))
class CommandLineNode(Node):
"""
"""
commandLine = '' # need to be defined on the node
parallelization = None
commandLineRange = ''
def buildCommandLine(self, chunk):
cmdPrefix = ''
# if rez available in env, we use it
if 'REZ_ENV' in os.environ and chunk.node.packageVersion:
# if the node package is already in the environment, we don't need a new dedicated rez environment
alreadyInEnv = os.environ.get('REZ_{}_VERSION'.format(chunk.node.packageName.upper()), "").startswith(chunk.node.packageVersion)
if not alreadyInEnv:
cmdPrefix = '{rez} {packageFullName} -- '.format(rez=os.environ.get('REZ_ENV'), packageFullName=chunk.node.packageFullName)
cmdSuffix = ''
if chunk.node.isParallelized and chunk.node.size > 1:
cmdSuffix = ' ' + self.commandLineRange.format(**chunk.range.toDict())
return cmdPrefix + chunk.node.nodeDesc.commandLine.format(**chunk.node._cmdVars) + cmdSuffix
def stopProcess(self, chunk):
# the same node could exists several times in the graph and
# only one would have the running subprocess; ignore all others
if not hasattr(chunk, "subprocess"):
return
if chunk.subprocess:
# kill process tree
processes = chunk.subprocess.children(recursive=True) + [chunk.subprocess]
try:
for process in processes:
process.terminate()
except psutil.NoSuchProcess:
pass
def processChunk(self, chunk):
try:
with open(chunk.logFile, 'w') as logF:
cmd = self.buildCommandLine(chunk)
chunk.status.commandLine = cmd
chunk.saveStatusFile()
print(' - commandLine: {}'.format(cmd))
print(' - logFile: {}'.format(chunk.logFile))
chunk.subprocess = psutil.Popen(shlex.split(cmd), stdout=logF, stderr=logF)
# store process static info into the status file
# chunk.status.env = node.proc.environ()
# chunk.status.createTime = node.proc.create_time()
chunk.statThread.proc = chunk.subprocess
stdout, stderr = chunk.subprocess.communicate()
chunk.subprocess.wait()
chunk.status.returnCode = chunk.subprocess.returncode
if chunk.subprocess.returncode != 0:
with open(chunk.logFile, 'r') as logF:
logContent = ''.join(logF.readlines())
raise RuntimeError('Error on node "{}":\nLog:\n{}'.format(chunk.name, logContent))
except:
raise
finally:
chunk.subprocess = None
# Test abstract node
class InitNode:
def __init__(self):
pass
def initialize(self, node, inputs, recursiveInputs):
"""
Initialize the attributes that are needed for a node to start running.
Args:
node (Node): the node whose attributes must be initialized
inputs (list): the user-provided list of input files/directories
recursiveInputs (list): the user-provided list of input directories to search recursively for images
"""
pass
def resetAttributes(self, node, attributeNames):
"""
Reset the values of the provided attributes for a node.
Args:
node (Node): the node whose attributes are to be reset
attributeNames (list): the list containing the names of the attributes to reset
"""
for attrName in attributeNames:
if node.hasAttribute(attrName):
node.attribute(attrName).resetValue()
def extendAttributes(self, node, attributesDict):
"""
Extend the values of the provided attributes for a node.
Args:
node (Node): the node whose attributes are to be extended
attributesDict (dict): the dictionary containing the attributes' names (as keys) and the values to extend with
"""
for attr in attributesDict.keys():
if node.hasAttribute(attr):
node.attribute(attr).extend(attributesDict[attr])
def setAttributes(self, node, attributesDict):
"""
Set the values of the provided attributes for a node.
Args:
node (Node): the node whose attributes are to be extended
attributesDict (dict): the dictionary containing the attributes' names (as keys) and the values to set
"""
for attr in attributesDict:
if node.hasAttribute(attr):
node.attribute(attr).value = attributesDict[attr]