Meshroom/meshroom/core/node.py
Candice Bentéjac df7e6f8845 [core] Node: Status should be NONE when there is no chunk
Prior to this commit, nodes with a varying number of chunks were initialized with an empty list of chunks (as expected), but with a global status that was set to `SUCCESS` instead of `NONE`. This caused issue on the graphical side as `SUCCESS` is interpreted as the status for nodes that have been successfully computed.
2025-03-12 10:40:46 +00:00

1854 lines
72 KiB
Python

#!/usr/bin/env python
# coding:utf-8
import atexit
import copy
import datetime
import json
import logging
import os
import platform
import re
import shutil
import time
import types
import uuid
from collections import namedtuple
from enum import Enum
from typing import Callable, Optional
import meshroom
from meshroom.common import Signal, Variant, Property, BaseObject, Slot, ListModel, DictModel
from meshroom.core import desc, stats, hashValue, nodeVersion, Version
from meshroom.core.attribute import attributeFactory, ListAttribute, GroupAttribute, Attribute
from meshroom.core.exception import NodeUpgradeError, UnknownNodeTypeError
def getWritingFilepath(filepath):
return filepath + '.writing.' + str(uuid.uuid4())
def renameWritingToFinalPath(writingFilepath, filepath):
if platform.system() == 'Windows':
# On Windows, attempting to remove a file that is in use causes an exception to be raised.
# So we may need multiple trials, if someone is reading it at the same time.
for i in range(20):
try:
os.remove(filepath)
# If remove is successful, we can stop the iterations
break
except WindowsError:
pass
os.rename(writingFilepath, filepath)
class Status(Enum):
"""
"""
NONE = 0
SUBMITTED = 1
RUNNING = 2
ERROR = 3
STOPPED = 4
KILLED = 5
SUCCESS = 6
INPUT = 7 # Special status for input nodes
class ExecMode(Enum):
NONE = 0
LOCAL = 1
EXTERN = 2
class StatusData(BaseObject):
"""
"""
dateTimeFormatting = '%Y-%m-%d %H:%M:%S.%f'
def __init__(self, nodeName='', nodeType='', packageName='', packageVersion='', parent=None):
super(StatusData, self).__init__(parent)
self.status = Status.NONE
self.execMode = ExecMode.NONE
self.nodeName = nodeName
self.nodeType = nodeType
self.packageName = packageName
self.packageVersion = packageVersion
self.graph = ''
self.commandLine = None
self.env = None
self.startDateTime = ""
self.endDateTime = ""
self.elapsedTime = 0
self.hostname = ""
self.sessionUid = meshroom.core.sessionUid
def merge(self, other):
self.startDateTime = min(self.startDateTime, other.startDateTime)
self.endDateTime = max(self.endDateTime, other.endDateTime)
self.elapsedTime += other.elapsedTime
def reset(self):
self.status = Status.NONE
self.execMode = ExecMode.NONE
self.graph = ''
self.commandLine = None
self.env = None
self.startDateTime = ""
self.endDateTime = ""
self.elapsedTime = 0
self.hostname = ""
self.sessionUid = meshroom.core.sessionUid
def initStartCompute(self):
import platform
self.sessionUid = meshroom.core.sessionUid
self.hostname = platform.node()
self.startDateTime = datetime.datetime.now().strftime(self.dateTimeFormatting)
# to get datetime obj: datetime.datetime.strptime(obj, self.dateTimeFormatting)
def initEndCompute(self):
self.sessionUid = meshroom.core.sessionUid
self.endDateTime = datetime.datetime.now().strftime(self.dateTimeFormatting)
@property
def elapsedTimeStr(self):
return str(datetime.timedelta(seconds=self.elapsedTime))
def toDict(self):
d = self.__dict__.copy()
d["elapsedTimeStr"] = self.elapsedTimeStr
# Skip non data attributes from BaseObject
d.pop("destroyed", None)
d.pop("objectNameChanged", None)
return d
def fromDict(self, d):
self.status = d.get('status', Status.NONE)
if not isinstance(self.status, Status):
self.status = Status[self.status]
self.execMode = d.get('execMode', ExecMode.NONE)
if not isinstance(self.execMode, ExecMode):
self.execMode = ExecMode[self.execMode]
self.nodeName = d.get('nodeName', '')
self.nodeType = d.get('nodeType', '')
self.packageName = d.get('packageName', '')
self.packageVersion = d.get('packageVersion', '')
self.graph = d.get('graph', '')
self.commandLine = d.get('commandLine', '')
self.env = d.get('env', '')
self.startDateTime = d.get('startDateTime', '')
self.endDateTime = d.get('endDateTime', '')
self.elapsedTime = d.get('elapsedTime', 0)
self.hostname = d.get('hostname', '')
self.sessionUid = d.get('sessionUid', '')
class LogManager:
dateTimeFormatting = '%H:%M:%S'
def __init__(self, chunk):
self.chunk = chunk
self.logger = logging.getLogger(chunk.node.getName())
class Formatter(logging.Formatter):
def format(self, record):
# Make level name lower case
record.levelname = record.levelname.lower()
return logging.Formatter.format(self, record)
def configureLogger(self):
for handler in self.logger.handlers[:]:
self.logger.removeHandler(handler)
handler = logging.FileHandler(self.chunk.logFile)
formatter = self.Formatter('[%(asctime)s.%(msecs)03d][%(levelname)s] %(message)s', self.dateTimeFormatting)
handler.setFormatter(formatter)
self.logger.addHandler(handler)
def start(self, level):
# Clear log file
open(self.chunk.logFile, 'w').close()
self.configureLogger()
self.logger.setLevel(self.textToLevel(level))
self.progressBar = False
def end(self):
for handler in self.logger.handlers[:]:
# Stops the file being locked
handler.close()
def makeProgressBar(self, end, message=''):
assert end > 0
assert not self.progressBar
self.progressEnd = end
self.currentProgressTics = 0
self.progressBar = True
with open(self.chunk.logFile, 'a') as f:
if message:
f.write(message+'\n')
f.write('0% 10 20 30 40 50 60 70 80 90 100%\n')
f.write('|----|----|----|----|----|----|----|----|----|----|\n\n')
f.close()
with open(self.chunk.logFile, 'r') as f:
content = f.read()
self.progressBarPosition = content.rfind('\n')
f.close()
def updateProgressBar(self, value):
assert self.progressBar
assert value <= self.progressEnd
tics = round((value/self.progressEnd)*51)
with open(self.chunk.logFile, 'r+') as f:
text = f.read()
for i in range(tics-self.currentProgressTics):
text = text[:self.progressBarPosition]+'*'+text[self.progressBarPosition:]
f.seek(0)
f.write(text)
f.close()
self.currentProgressTics = tics
def completeProgressBar(self):
assert self.progressBar
self.progressBar = False
def textToLevel(self, text):
if text == 'critical':
return logging.CRITICAL
elif text == 'error':
return logging.ERROR
elif text == 'warning':
return logging.WARNING
elif text == 'info':
return logging.INFO
elif text == 'debug':
return logging.DEBUG
else:
return logging.NOTSET
runningProcesses = {}
@atexit.register
def clearProcessesStatus():
global runningProcesses
for k, v in runningProcesses.items():
v.upgradeStatusTo(Status.KILLED)
class NodeChunk(BaseObject):
def __init__(self, node, range, parent=None):
super(NodeChunk, self).__init__(parent)
self.node = node
self.range = range
self.logManager = LogManager(self)
self._status = StatusData(node.name, node.nodeType, node.packageName, node.packageVersion)
self.statistics = stats.Statistics()
self.statusFileLastModTime = -1
self._subprocess = None
# Notify update in filepaths when node's internal folder changes
self.node.internalFolderChanged.connect(self.nodeFolderChanged)
self.execModeNameChanged.connect(self.node.globalExecModeChanged)
@property
def index(self):
return self.range.iteration
@property
def name(self):
if self.range.blockSize:
return "{}({})".format(self.node.name, self.index)
else:
return self.node.name
@property
def statusName(self):
return self._status.status.name
@property
def logger(self):
return self.logManager.logger
@property
def execModeName(self):
return self._status.execMode.name
def updateStatusFromCache(self):
"""
Update node status based on status file content/existence.
"""
statusFile = self.statusFile
oldStatus = self._status.status
# No status file => reset status to Status.None
if not os.path.exists(statusFile):
self.statusFileLastModTime = -1
self._status.reset()
else:
try:
with open(statusFile, 'r') as jsonFile:
statusData = json.load(jsonFile)
self.status.fromDict(statusData)
self.statusFileLastModTime = os.path.getmtime(statusFile)
except Exception:
self.statusFileLastModTime = -1
self.status.reset()
if oldStatus != self.status.status:
self.statusChanged.emit()
@property
def statusFile(self):
if self.range.blockSize == 0:
return os.path.join(self.node.graph.cacheDir, self.node.internalFolder, "status")
else:
return os.path.join(self.node.graph.cacheDir, self.node.internalFolder, str(self.index) + ".status")
@property
def statisticsFile(self):
if self.range.blockSize == 0:
return os.path.join(self.node.graph.cacheDir, self.node.internalFolder, "statistics")
else:
return os.path.join(self.node.graph.cacheDir, self.node.internalFolder, str(self.index) + ".statistics")
@property
def logFile(self):
if self.range.blockSize == 0:
return os.path.join(self.node.graph.cacheDir, self.node.internalFolder, "log")
else:
return os.path.join(self.node.graph.cacheDir, self.node.internalFolder, str(self.index) + ".log")
def saveStatusFile(self):
"""
Write node status on disk.
"""
data = self._status.toDict()
statusFilepath = self.statusFile
folder = os.path.dirname(statusFilepath)
try:
os.makedirs(folder)
except Exception:
pass
statusFilepathWriting = getWritingFilepath(statusFilepath)
with open(statusFilepathWriting, 'w') as jsonFile:
json.dump(data, jsonFile, indent=4)
renameWritingToFinalPath(statusFilepathWriting, statusFilepath)
def upgradeStatusTo(self, newStatus, execMode=None):
if newStatus.value <= self._status.status.value:
logging.warning("Downgrade status on node '{}' from {} to {}".
format(self.name, self._status.status, newStatus))
if newStatus == Status.SUBMITTED:
self._status = StatusData(self.node.name, self.node.nodeType, self.node.packageName, self.node.packageVersion)
if execMode is not None:
self._status.execMode = execMode
self.execModeNameChanged.emit()
self._status.status = newStatus
self.saveStatusFile()
self.statusChanged.emit()
def updateStatisticsFromCache(self):
"""
"""
oldTimes = self.statistics.times
statisticsFile = self.statisticsFile
if not os.path.exists(statisticsFile):
return
with open(statisticsFile, 'r') as jsonFile:
statisticsData = json.load(jsonFile)
self.statistics.fromDict(statisticsData)
if oldTimes != self.statistics.times:
self.statisticsChanged.emit()
def saveStatistics(self):
data = self.statistics.toDict()
statisticsFilepath = self.statisticsFile
folder = os.path.dirname(statisticsFilepath)
if not os.path.exists(folder):
os.makedirs(folder)
statisticsFilepathWriting = getWritingFilepath(statisticsFilepath)
with open(statisticsFilepathWriting, 'w') as jsonFile:
json.dump(data, jsonFile, indent=4)
renameWritingToFinalPath(statisticsFilepathWriting, statisticsFilepath)
def isAlreadySubmitted(self):
return self._status.status in (Status.SUBMITTED, Status.RUNNING)
def isAlreadySubmittedOrFinished(self):
return self._status.status in (Status.SUBMITTED, Status.RUNNING, Status.SUCCESS)
def isFinishedOrRunning(self):
return self._status.status in (Status.SUCCESS, Status.RUNNING)
def isRunning(self):
return self._status.status == Status.RUNNING
def isStopped(self):
return self._status.status == Status.STOPPED
def isFinished(self):
return self._status.status == Status.SUCCESS
def process(self, forceCompute=False):
if not forceCompute and self._status.status == Status.SUCCESS:
logging.info("Node chunk already computed: {}".format(self.name))
return
global runningProcesses
runningProcesses[self.name] = self
self._status.initStartCompute()
exceptionStatus = None
startTime = time.time()
self.upgradeStatusTo(Status.RUNNING)
self.statThread = stats.StatisticsThread(self)
self.statThread.start()
try:
self.node.nodeDesc.processChunk(self)
except Exception:
if self._status.status != Status.STOPPED:
exceptionStatus = Status.ERROR
raise
except (KeyboardInterrupt, SystemError, GeneratorExit):
exceptionStatus = Status.STOPPED
raise
finally:
self._status.initEndCompute()
self._status.elapsedTime = time.time() - startTime
if exceptionStatus is not None:
self.upgradeStatusTo(exceptionStatus)
logging.info(" - elapsed time: {}".format(self._status.elapsedTimeStr))
# Ask and wait for the stats thread to stop
self.statThread.stopRequest()
self.statThread.join()
self.statistics = stats.Statistics()
del runningProcesses[self.name]
self.upgradeStatusTo(Status.SUCCESS)
def stopProcess(self):
if not self.isExtern():
if self._status.status == Status.RUNNING:
self.upgradeStatusTo(Status.STOPPED)
elif self._status.status == Status.SUBMITTED:
self.upgradeStatusTo(Status.NONE)
self.node.nodeDesc.stopProcess(self)
def isExtern(self):
return self._status.execMode == ExecMode.EXTERN or (
self._status.execMode == ExecMode.LOCAL and self._status.sessionUid != meshroom.core.sessionUid)
statusChanged = Signal()
status = Property(Variant, lambda self: self._status, notify=statusChanged)
statusName = Property(str, statusName.fget, notify=statusChanged)
execModeNameChanged = Signal()
execModeName = Property(str, execModeName.fget, notify=execModeNameChanged)
statisticsChanged = Signal()
nodeFolderChanged = Signal()
statusFile = Property(str, statusFile.fget, notify=nodeFolderChanged)
logFile = Property(str, logFile.fget, notify=nodeFolderChanged)
statisticsFile = Property(str, statisticsFile.fget, notify=nodeFolderChanged)
nodeName = Property(str, lambda self: self.node.name, constant=True)
statusNodeName = Property(str, lambda self: self._status.nodeName, constant=True)
elapsedTime = Property(float, lambda self: self._status.elapsedTime, notify=statusChanged)
# Simple structure for storing node position
Position = namedtuple("Position", ["x", "y"])
# Initialize default coordinates values to 0
Position.__new__.__defaults__ = (0,) * len(Position._fields)
class BaseNode(BaseObject):
"""
Base Abstract class for Graph nodes.
"""
# Regexp handling complex attribute names with recursive understanding of Lists and Groups
# i.e: a.b, a[0], a[0].b.c[1]
attributeRE = re.compile(r'\.?(?P<name>\w+)(?:\[(?P<index>\d+)\])?')
def __init__(self, nodeType, position=None, parent=None, uid=None, **kwargs):
"""
Create a new Node instance based on the given node description.
Any other keyword argument will be used to initialize this node's attributes.
Args:
nodeDesc (desc.Node): the node description for this node
parent (BaseObject): this Node's parent
**kwargs: attributes values
"""
super(BaseNode, self).__init__(parent)
self._nodeType = nodeType
self.nodeDesc = None
# instantiate node description if nodeType is valid
if nodeType in meshroom.core.nodesDesc:
self.nodeDesc = meshroom.core.nodesDesc[nodeType]()
self.packageName = self.packageVersion = ""
self._internalFolder = ""
self._sourceCodeFolder = ""
self._name = None
self.graph = None
self.dirty = True # whether this node's outputs must be re-evaluated on next Graph update
self._chunks = ListModel(parent=self)
self._uid = uid
self._cmdVars = {}
self._size = 0
self._position = position or Position()
self._attributes = DictModel(keyAttrName='name', parent=self)
self._internalAttributes = DictModel(keyAttrName='name', parent=self)
self.invalidatingAttributes = set()
self._alive = True # for QML side to know if the node can be used or is going to be deleted
self._locked = False
self._duplicates = ListModel(parent=self) # list of nodes with the same uid
self._hasDuplicates = False
self.globalStatusChanged.connect(self.updateDuplicatesStatusAndLocked)
def __getattr__(self, k):
try:
# Throws exception if not in prototype chain
return object.__getattribute__(self, k)
except AttributeError as e:
try:
return self.attribute(k)
except KeyError:
raise e
def getName(self):
return self._name
def getDefaultLabel(self):
return self.nameToLabel(self._name)
def getLabel(self):
"""
Returns:
str: the user-provided label if it exists, the high-level label of this node otherwise
"""
if self.hasInternalAttribute("label"):
label = self.internalAttribute("label").value.strip()
if label:
return label
return self.getDefaultLabel()
def getColor(self):
"""
Returns:
str: the user-provided custom color of the node if it exists, empty string otherwise
"""
if self.hasInternalAttribute("color"):
return self.internalAttribute("color").value.strip()
return ""
def getInvalidationMessage(self):
"""
Returns:
str: the invalidation message on the node if it exists, empty string otherwise
"""
if self.hasInternalAttribute("invalidation"):
return self.internalAttribute("invalidation").value
return ""
def getComment(self):
"""
Returns:
str: the comments on the node if they exist, empty string otherwise
"""
if self.hasInternalAttribute("comment"):
return self.internalAttribute("comment").value
return ""
@Slot(str, result=str)
def nameToLabel(self, name):
"""
Returns:
str: the high-level label from the technical node name
"""
t, idx = name.split("_")
return "{}{}".format(t, idx if int(idx) > 1 else "")
def getDocumentation(self):
if not self.nodeDesc:
return ""
return self.nodeDesc.documentation
@property
def packageFullName(self):
return '-'.join([self.packageName, self.packageVersion])
@Slot(str, result=Attribute)
def attribute(self, name):
att = None
# Complex name indicating group or list attribute
if '[' in name or '.' in name:
p = self.attributeRE.findall(name)
for n, idx in p:
# first step: get root attribute
if att is None:
att = self._attributes.get(n)
else:
# get child Attribute in Group
assert isinstance(att, GroupAttribute)
att = att.value.get(n)
if idx != '':
# get child Attribute in List
assert isinstance(att, ListAttribute)
att = att.value.at(int(idx))
else:
att = self._attributes.getr(name)
return att
@Slot(str, result=Attribute)
def internalAttribute(self, name):
# No group or list attributes for internal attributes
# The internal attribute itself can be returned directly
return self._internalAttributes.get(name)
def setInternalAttributeValues(self, values):
# initialize internal attribute values
for k, v in values.items():
attr = self.internalAttribute(k)
attr.value = v
def getAttributes(self):
return self._attributes
def getInternalAttributes(self):
return self._internalAttributes
@Slot(str, result=bool)
def hasAttribute(self, name):
# Complex name indicating group or list attribute: parse it and get the
# first output element to check for the attribute's existence
if "[" in name or "." in name:
p = self.attributeRE.findall(name)
return p[0][0] in self._attributes.keys() or p[0][1] in self._attributes.keys()
return name in self._attributes.keys()
@Slot(str, result=bool)
def hasInternalAttribute(self, name):
return name in self._internalAttributes.keys()
def _applyExpr(self):
for attr in self._attributes:
attr._applyExpr()
@property
def nodeType(self):
return self._nodeType
@property
def position(self):
""" Get node position. """
return self._position
@position.setter
def position(self, value):
""" Set node position.
Args:
value (Position): target position
"""
if self._position == value:
return
self._position = value
self.positionChanged.emit()
@property
def alive(self):
return self._alive
@alive.setter
def alive(self, value):
if self._alive == value:
return
self._alive = value
self.aliveChanged.emit()
@property
def depth(self):
return self.graph.getDepth(self)
@property
def minDepth(self):
return self.graph.getDepth(self, minimal=True)
@property
def valuesFile(self):
return os.path.join(self.graph.cacheDir, self.internalFolder, 'values')
def getInputNodes(self, recursive, dependenciesOnly):
return self.graph.getInputNodes(self, recursive=recursive, dependenciesOnly=dependenciesOnly)
def getOutputNodes(self, recursive, dependenciesOnly):
return self.graph.getOutputNodes(self, recursive=recursive, dependenciesOnly=dependenciesOnly)
def toDict(self):
pass
def _computeUid(self):
""" Compute node UID by combining associated attributes' UIDs. """
# If there is no invalidating attribute, then the computation of the UID should not go through as
# it will only include the node type
if not self.invalidatingAttributes:
return
# UID is computed by hashing the sorted list of tuple (name, value) of all attributes impacting this UID
uidAttributes = []
for attr in self.invalidatingAttributes:
if not attr.enabled:
continue # Disabled params do not contribute to the uid
dynamicOutputAttr = attr.isLink and attr.getLinkParam(recursive=True).desc.isDynamicValue
# For dynamic output attributes, the UID does not depend on the attribute value.
# In particular, when loading a project file, the UIDs are updated first,
# and the node status and the dynamic output values are not yet loaded,
# so we should not read the attribute value.
if not dynamicOutputAttr and attr.value == attr.uidIgnoreValue:
continue # For non-dynamic attributes, check if the value should be ignored
uidAttributes.append((attr.getName(), attr.uid()))
uidAttributes.sort()
# Adding the node type prevents ending up with two identical UIDs for different node types
# that have the exact same list of attributes
uidAttributes.append(self.nodeType)
self._uid = hashValue(uidAttributes)
def _buildCmdVars(self):
def _buildAttributeCmdVars(cmdVars, name, attr):
if attr.enabled:
group = attr.attributeDesc.group(attr.node) \
if isinstance(attr.attributeDesc.group, types.FunctionType) else attr.attributeDesc.group
if group is not None:
# If there is a valid command line "group"
v = attr.getValueStr(withQuotes=True)
cmdVars[name] = "--{name} {value}".format(name=name, value=v)
# xxValue is exposed without quotes to allow to compose expressions
cmdVars[name + "Value"] = attr.getValueStr(withQuotes=False)
# List elements may give a fully empty string and will not be sent to the command line.
# String attributes will return only quotes if it is empty and thus will be send to the command line.
# But a List of string containing 1 element,
# and this element is an empty string will also return quotes and will be sent to the command line.
if v:
cmdVars[group] = cmdVars.get(group, "") + " " + cmdVars[name]
elif isinstance(attr, GroupAttribute):
assert isinstance(attr.value, DictModel)
# If the GroupAttribute is not set in a single command line argument,
# the sub-attributes may need to be exposed individually
for v in attr._value:
_buildAttributeCmdVars(cmdVars, v.name, v)
""" Generate command variables using input attributes and resolved output attributes names and values. """
self._cmdVars["uid"] = self._uid
self._cmdVars["nodeCacheFolder"] = self.internalFolder
self._cmdVars["nodeSourceCodeFolder"] = self.sourceCodeFolder
# Evaluate input params
for name, attr in self._attributes.objects.items():
if attr.isOutput:
continue # skip outputs
_buildAttributeCmdVars(self._cmdVars, name, attr)
# For updating output attributes invalidation values
cmdVarsNoCache = self._cmdVars.copy()
cmdVarsNoCache["cache"] = ""
# Use "self._internalFolder" instead of "self.internalFolder" because we do not want it to be
# resolved with the {cache} information ("self.internalFolder" resolves "self._internalFolder")
cmdVarsNoCache["nodeCacheFolder"] = self._internalFolder.format(**cmdVarsNoCache)
# Evaluate output params
for name, attr in self._attributes.objects.items():
if attr.isInput:
continue # skip inputs
# Apply expressions for File attributes
if attr.attributeDesc.isExpression:
defaultValue = ""
# Do not evaluate expression for disabled attributes
# (the expression may refer to other attributes that are not defined)
if attr.enabled:
try:
defaultValue = attr.defaultValue()
except AttributeError:
# If we load an old scene, the lambda associated to the 'value' could try to access other
# params that could not exist yet
logging.warning('Invalid lambda evaluation for "{nodeName}.{attrName}"'.
format(nodeName=self.name, attrName=attr.name))
if defaultValue is not None:
try:
attr.value = defaultValue.format(**self._cmdVars)
attr._invalidationValue = defaultValue.format(**cmdVarsNoCache)
except KeyError as e:
logging.warning('Invalid expression with missing key on "{nodeName}.{attrName}" with '
'value "{defaultValue}".\nError: {err}'.
format(nodeName=self.name, attrName=attr.name, defaultValue=defaultValue,
err=str(e)))
except ValueError as e:
logging.warning('Invalid expression value on "{nodeName}.{attrName}" with value '
'"{defaultValue}".\nError: {err}'.
format(nodeName=self.name, attrName=attr.name, defaultValue=defaultValue,
err=str(e)))
v = attr.getValueStr(withQuotes=True)
self._cmdVars[name] = '--{name} {value}'.format(name=name, value=v)
# xxValue is exposed without quotes to allow to compose expressions
self._cmdVars[name + 'Value'] = attr.getValueStr(withQuotes=False)
if v:
self._cmdVars[attr.attributeDesc.group] = self._cmdVars.get(attr.attributeDesc.group, '') + \
' ' + self._cmdVars[name]
@property
def isParallelized(self):
return bool(self.nodeDesc.parallelization) if meshroom.useMultiChunks else False
@property
def nbParallelizationBlocks(self):
return len(self._chunks)
def hasStatus(self, status):
if not self._chunks:
return (status == Status.INPUT)
for chunk in self._chunks:
if chunk.status.status != status:
return False
return True
def _isComputed(self):
if not self.isComputable:
return True
return self.hasStatus(Status.SUCCESS)
def _isComputable(self):
return self.getGlobalStatus() != Status.INPUT
def clearData(self):
""" Delete this Node internal folder.
Status will be reset to Status.NONE
"""
if self.internalFolder and os.path.exists(self.internalFolder):
shutil.rmtree(self.internalFolder)
self.updateStatusFromCache()
@Slot(result=str)
def getStartDateTime(self):
""" Return the date (str) of the first running chunk """
dateTime = [chunk._status.startDateTime for chunk in self._chunks if chunk._status.status
not in (Status.NONE, Status.SUBMITTED) and chunk._status.startDateTime != ""]
return min(dateTime) if len(dateTime) != 0 else ""
def isAlreadySubmitted(self):
for chunk in self._chunks:
if chunk.isAlreadySubmitted():
return True
return False
def isAlreadySubmittedOrFinished(self):
for chunk in self._chunks:
if not chunk.isAlreadySubmittedOrFinished():
return False
return True
@Slot(result=bool)
def isSubmittedOrRunning(self):
""" Return True if all chunks are at least submitted and there is one running chunk, False otherwise. """
if not self.isAlreadySubmittedOrFinished():
return False
for chunk in self._chunks:
if chunk.isRunning():
return True
return False
@Slot(result=bool)
def isRunning(self):
""" Return True if at least one chunk of this Node is running, False otherwise. """
return any(chunk.isRunning() for chunk in self._chunks)
@Slot(result=bool)
def isFinishedOrRunning(self):
""" Return True if all chunks of this Node is either finished or running, False otherwise. """
return all(chunk.isFinishedOrRunning() for chunk in self._chunks)
@Slot(result=bool)
def isPartiallyFinished(self):
""" Return True is at least one chunk of this Node is finished, False otherwise. """
return any(chunk.isFinished() for chunk in self._chunks)
def alreadySubmittedChunks(self):
return [ch for ch in self._chunks if ch.isAlreadySubmitted()]
def isExtern(self):
""" Return True if at least one chunk of this Node has an external execution mode, False otherwise.
It is not enough to check whether the first chunk's execution mode is external, because computations
may have been started locally, interrupted, and restarted externally. In that case, if the first
chunk has completed locally before the computations were interrupted, its execution mode will always
be local, even if computations resume externally.
"""
return any(chunk.isExtern() for chunk in self._chunks)
@Slot()
def clearSubmittedChunks(self):
""" Reset all submitted chunks to Status.NONE. This method should be used to clear inconsistent status
if a computation failed without informing the graph.
Warnings:
This must be used with caution. This could lead to inconsistent node status
if the graph is still being computed.
"""
for chunk in self._chunks:
if chunk.isAlreadySubmitted():
chunk.upgradeStatusTo(Status.NONE, ExecMode.NONE)
def clearLocallySubmittedChunks(self):
""" Reset all locally submitted chunks to Status.NONE. """
for chunk in self._chunks:
if chunk.isAlreadySubmitted() and not chunk.isExtern():
chunk.upgradeStatusTo(Status.NONE, ExecMode.NONE)
def upgradeStatusTo(self, newStatus):
"""
Upgrade node to the given status and save it on disk.
"""
for chunk in self._chunks:
chunk.upgradeStatusTo(newStatus)
def updateStatisticsFromCache(self):
for chunk in self._chunks:
chunk.updateStatisticsFromCache()
def _updateChunks(self):
pass
def _getAttributeChangedCallback(self, attr: Attribute) -> Optional[Callable]:
"""Get the node descriptor-defined value changed callback associated to `attr` if any."""
# Callbacks cannot be defined on nested attributes.
if attr.root is not None:
return None
attrCapitalizedName = attr.name[:1].upper() + attr.name[1:]
callbackName = f"on{attrCapitalizedName}Changed"
callback = getattr(self.nodeDesc, callbackName, None)
return callback if callback and callable(callback) else None
def _onAttributeChanged(self, attr: Attribute):
"""
When an attribute value has changed, a specific function can be defined in the descriptor and be called.
Args:
attr: The Attribute that has changed.
"""
if self.isCompatibilityNode:
# Compatibility nodes are not meant to be updated.
return
if attr.isOutput and not self.isInputNode:
# Ignore changes on output attributes for non-input nodes
# as they are updated during the node's computation.
# And we do not want notifications during the graph processing.
return
if attr.value is None:
# Discard dynamic values depending on the graph processing.
return
if self.graph and self.graph.isLoading:
# Do not trigger attribute callbacks during the graph loading.
return
callback = self._getAttributeChangedCallback(attr)
if callback:
callback(self)
if self.graph:
# If we are in a graph, propagate the notification to the connected output attributes
for edge in self.graph.outEdges(attr):
edge.dst.valueChanged.emit()
def onAttributeClicked(self, attr):
""" When an attribute is clicked, a specific function can be defined in the descriptor and be called.
Args:
attr (Attribute): attribute that has been clicked
"""
paramName = attr.name[:1].upper() + attr.name[1:]
methodName = f'on{paramName}Clicked'
if hasattr(self.nodeDesc, methodName):
m = getattr(self.nodeDesc, methodName)
if callable(m):
m(self)
def updateInternals(self, cacheDir=None):
""" Update Node's internal parameters and output attributes.
This method is called when:
- an input parameter is modified
- the graph main cache directory is changed
Args:
cacheDir (str): (optional) override graph's cache directory with custom path
"""
if self.nodeDesc:
self.nodeDesc.update(self)
for attr in self._attributes:
attr.updateInternals()
# Update chunks splitting
self._updateChunks()
# Retrieve current internal folder (if possible)
try:
folder = self.internalFolder
except KeyError:
folder = ''
# Update command variables / output attributes
self._cmdVars = {
"cache": cacheDir or self.graph.cacheDir,
"nodeType": self.nodeType,
"nodeCacheFolder": self._internalFolder,
"nodeSourceCodeFolder": self.sourceCodeFolder
}
self._computeUid()
self._buildCmdVars()
if self.nodeDesc:
self.nodeDesc.postUpdate(self)
# Notify internal folder change if needed
if self.internalFolder != folder:
self.internalFolderChanged.emit()
def updateInternalAttributes(self):
self.internalAttributesChanged.emit()
@property
def internalFolder(self):
return self._internalFolder.format(**self._cmdVars)
@property
def sourceCodeFolder(self):
return self._sourceCodeFolder
def updateStatusFromCache(self):
"""
Update node status based on status file content/existence.
"""
s = self.globalStatus
for chunk in self._chunks:
chunk.updateStatusFromCache()
# logging.warning("updateStatusFromCache: {}, status: {} => {}".format(self.name, s, self.globalStatus))
self.updateOutputAttr()
def submit(self, forceCompute=False):
for chunk in self._chunks:
if forceCompute or chunk.status.status != Status.SUCCESS:
chunk.upgradeStatusTo(Status.SUBMITTED, ExecMode.EXTERN)
def beginSequence(self, forceCompute=False):
for chunk in self._chunks:
if forceCompute or (chunk.status.status not in (Status.RUNNING, Status.SUCCESS)):
chunk.upgradeStatusTo(Status.SUBMITTED, ExecMode.LOCAL)
def processIteration(self, iteration):
self._chunks[iteration].process()
def preprocess(self):
# Invoke the Node Description's pre-process for the Client Node to prepare its processing
self.nodeDesc.preprocess(self)
def process(self, forceCompute=False):
for chunk in self._chunks:
chunk.process(forceCompute)
def postprocess(self):
# Invoke the post process on Client Node to execute after the processing on the node is completed
self.nodeDesc.postprocess(self)
self.saveOutputAttr()
def updateOutputAttr(self):
if not self.nodeDesc:
return
if not self.nodeDesc.hasDynamicOutputAttribute:
return
# logging.warning("updateOutputAttr: {}, status: {}".format(self.name, self.globalStatus))
if self.getGlobalStatus() == Status.SUCCESS:
self.loadOutputAttr()
else:
self.resetOutputAttr()
def resetOutputAttr(self):
if not self.nodeDesc.hasDynamicOutputAttribute:
return
# logging.warning("resetOutputAttr: {}".format(self.name))
for output in self.nodeDesc.outputs:
if output.isDynamicValue:
if self.hasAttribute(output.name):
self.attribute(output.name).value = None
else:
logging.warning(f"resetOutputAttr: Missing dynamic output attribute: {self.name}.{output.name}")
def loadOutputAttr(self):
""" Load output attributes with dynamic values from a values.json file.
"""
if not self.nodeDesc.hasDynamicOutputAttribute:
return
valuesFile = self.valuesFile
if not os.path.exists(valuesFile):
logging.warning("No output attr file: {}".format(valuesFile))
return
# logging.warning("load output attr: {}, value: {}".format(self.name, valuesFile))
with open(valuesFile, 'r') as jsonFile:
data = json.load(jsonFile)
# logging.warning(data)
for output in self.nodeDesc.outputs:
if output.isDynamicValue:
if self.hasAttribute(output.name) and output.name in data:
self.attribute(output.name).value = data[output.name]
else:
if not self.hasAttribute(output.name):
logging.warning(f"loadOutputAttr: Missing dynamic output attribute. Node={self.name}, "
f"Attribute={output.name}")
if output.name not in data:
logging.warning(f"loadOutputAttr: Missing dynamic output value in file. Node={self.name}, "
f"Attribute={output.name}, File={valuesFile}, Data keys={data.keys()}")
def saveOutputAttr(self):
""" Save output attributes with dynamic values into a values.json file.
"""
if not self.nodeDesc.hasDynamicOutputAttribute:
return
data = {}
for output in self.nodeDesc.outputs:
if output.isDynamicValue:
if self.hasAttribute(output.name):
data[output.name] = self.attribute(output.name).value
else:
logging.warning(f"saveOutputAttr: Missing dynamic output attribute: {self.name}.{output.name}")
valuesFile = self.valuesFile
# logging.warning("save output attr: {}, value: {}".format(self.name, valuesFile))
valuesFilepathWriting = getWritingFilepath(valuesFile)
with open(valuesFilepathWriting, 'w') as jsonFile:
json.dump(data, jsonFile, indent=4)
renameWritingToFinalPath(valuesFilepathWriting, valuesFile)
def endSequence(self):
pass
def stopComputation(self):
""" Stop the computation of this node. """
for chunk in self._chunks.values():
chunk.stopProcess()
def getGlobalStatus(self):
"""
Get node global status based on the status of its chunks.
Returns:
Status: the node global status
"""
if isinstance(self.nodeDesc, desc.InputNode):
return Status.INPUT
if not self._chunks:
return Status.NONE
chunksStatus = [chunk.status.status for chunk in self._chunks]
anyOf = (Status.ERROR, Status.STOPPED, Status.KILLED,
Status.RUNNING, Status.SUBMITTED)
allOf = (Status.SUCCESS,)
for status in anyOf:
if any(s == status for s in chunksStatus):
return status
for status in allOf:
if all(s == status for s in chunksStatus):
return status
return Status.NONE
@Slot(result=StatusData)
def getFusedStatus(self):
fusedStatus = StatusData()
if self._chunks:
fusedStatus.fromDict(self._chunks[0].status.toDict())
for chunk in self._chunks[1:]:
fusedStatus.merge(chunk.status)
fusedStatus.status = self.getGlobalStatus()
return fusedStatus
@Slot(result=StatusData)
def getRecursiveFusedStatus(self):
fusedStatus = self.getFusedStatus()
nodes = self.getInputNodes(recursive=True, dependenciesOnly=True)
for node in nodes:
fusedStatus.merge(node.fusedStatus)
return fusedStatus
def _isCompatibilityNode(self):
return False
def _isInputNode(self):
return isinstance(self.nodeDesc, desc.InputNode)
@property
def globalExecMode(self):
return self._chunks.at(0).execModeName
def getChunks(self):
return self._chunks
def getSize(self):
return self._size
def setSize(self, value):
if self._size == value:
return
self._size = value
self.sizeChanged.emit()
def __repr__(self):
return self.name
def getLocked(self):
return self._locked
def setLocked(self, lock):
if self._locked == lock:
return
self._locked = lock
self.lockedChanged.emit()
@Slot()
def updateDuplicatesStatusAndLocked(self):
""" Update status of duplicate nodes without any latency and update locked. """
if self.name == self._chunks.at(0).statusNodeName:
for node in self._duplicates:
node.updateStatusFromCache()
self.updateLocked()
def updateLocked(self):
currentStatus = self.getGlobalStatus()
lockedStatus = (Status.RUNNING, Status.SUBMITTED)
# Unlock required nodes if the current node changes to Error, Stopped or None
# Warning: we must handle some specific cases for global start/stop
if self._locked and currentStatus in (Status.ERROR, Status.STOPPED, Status.NONE):
self.setLocked(False)
inputNodes = self.getInputNodes(recursive=True, dependenciesOnly=True)
for node in inputNodes:
if node.getGlobalStatus() == Status.RUNNING:
# Return without unlocking if at least one input node is running
# Example: using Cancel Computation on a submitted node
return
for node in inputNodes:
node.setLocked(False)
return
# Avoid useless travel through nodes
# For instance: when loading a scene with successful nodes
if not self._locked and currentStatus == Status.SUCCESS:
return
if currentStatus == Status.SUCCESS:
# At this moment, the node is necessarily locked because of previous if statement
inputNodes = self.getInputNodes(recursive=True, dependenciesOnly=True)
outputNodes = self.getOutputNodes(recursive=True, dependenciesOnly=True)
stayLocked = None
# Check if at least one dependentNode is submitted or currently running
for node in outputNodes:
if node.getGlobalStatus() in lockedStatus and node._chunks.at(0).statusNodeName == node.name:
stayLocked = True
break
if not stayLocked:
self.setLocked(False)
# Unlock every input node
for node in inputNodes:
node.setLocked(False)
return
elif currentStatus in lockedStatus and self._chunks.at(0).statusNodeName == self.name:
self.setLocked(True)
inputNodes = self.getInputNodes(recursive=True, dependenciesOnly=True)
for node in inputNodes:
node.setLocked(True)
return
self.setLocked(False)
def updateDuplicates(self, nodesPerUid):
""" Update the list of duplicate nodes (sharing the same UID). """
if not nodesPerUid or not self._uid:
if len(self._duplicates) > 0:
self._duplicates.clear()
self._hasDuplicates = False
self.hasDuplicatesChanged.emit()
return
newList = [node for node in nodesPerUid.get(self._uid) if node != self]
# If number of elements in both lists are identical,
# we must check if their content is the same
if len(newList) == len(self._duplicates):
newListName = set([node.name for node in newList])
oldListName = set([node.name for node in self._duplicates.values()])
# If strict equality between both sets,
# there is no need to set the new list
if newListName == oldListName:
return
# Set the newList
self._duplicates.setObjectList(newList)
# Emit a specific signal 'hasDuplicates' to avoid extra binding
# re-evaluation when the number of duplicates has changed
if bool(len(newList)) != self._hasDuplicates:
self._hasDuplicates = bool(len(newList))
self.hasDuplicatesChanged.emit()
def statusInThisSession(self):
if not self._chunks:
return False
for chunk in self._chunks:
if chunk.status.sessionUid != meshroom.core.sessionUid:
return False
return True
@Slot(result=bool)
def canBeStopped(self):
# Only locked nodes running in local with the same
# sessionUid as the Meshroom instance can be stopped
return (self.locked and self.getGlobalStatus() == Status.RUNNING and
self.globalExecMode == "LOCAL" and self.statusInThisSession())
@Slot(result=bool)
def canBeCanceled(self):
# Only locked nodes submitted in local with the same
# sessionUid as the Meshroom instance can be canceled
return (self.locked and self.getGlobalStatus() == Status.SUBMITTED and
self.globalExecMode == "LOCAL" and self.statusInThisSession())
def hasImageOutputAttribute(self):
"""
Return True if at least one attribute has the 'image' semantic (and can thus be loaded in the 2D Viewer),
False otherwise.
"""
for attr in self._attributes:
if attr.enabled and attr.isOutput and attr.desc.semantic == "image":
return True
return False
def hasSequenceOutputAttribute(self):
"""
Return True if at least one attribute has the 'sequence' semantic (and can thus be loaded in the 2D Viewer),
False otherwise.
"""
for attr in self._attributes:
if attr.enabled and attr.isOutput and (attr.desc.semantic == "sequence" or
attr.desc.semantic == "imageList"):
return True
return False
def has3DOutputAttribute(self):
"""
Return True if at least one attribute is a File that can be loaded in the 3D Viewer, False otherwise.
"""
# List of supported extensions, taken from Viewer3DSettings
supportedExts = ['.obj', '.stl', '.fbx', '.gltf', '.abc', '.ply']
for attr in self._attributes:
# If the attribute is a File attribute, it is an instance of str and can be iterated over
hasSupportedExt = isinstance(attr.value, str) and any(ext in attr.value for ext in supportedExts)
if attr.enabled and attr.isOutput and hasSupportedExt:
return True
return False
name = Property(str, getName, constant=True)
defaultLabel = Property(str, getDefaultLabel, constant=True)
nodeType = Property(str, nodeType.fget, constant=True)
documentation = Property(str, getDocumentation, constant=True)
positionChanged = Signal()
position = Property(Variant, position.fget, position.fset, notify=positionChanged)
x = Property(float, lambda self: self._position.x, notify=positionChanged)
y = Property(float, lambda self: self._position.y, notify=positionChanged)
attributes = Property(BaseObject, getAttributes, constant=True)
internalAttributes = Property(BaseObject, getInternalAttributes, constant=True)
internalAttributesChanged = Signal()
label = Property(str, getLabel, notify=internalAttributesChanged)
color = Property(str, getColor, notify=internalAttributesChanged)
invalidation = Property(str, getInvalidationMessage, notify=internalAttributesChanged)
comment = Property(str, getComment, notify=internalAttributesChanged)
internalFolderChanged = Signal()
internalFolder = Property(str, internalFolder.fget, notify=internalFolderChanged)
valuesFile = Property(str, valuesFile.fget, notify=internalFolderChanged)
depthChanged = Signal()
depth = Property(int, depth.fget, notify=depthChanged)
minDepth = Property(int, minDepth.fget, notify=depthChanged)
chunksChanged = Signal()
chunks = Property(Variant, getChunks, notify=chunksChanged)
sizeChanged = Signal()
size = Property(int, getSize, notify=sizeChanged)
globalStatusChanged = Signal()
globalStatus = Property(str, lambda self: self.getGlobalStatus().name, notify=globalStatusChanged)
fusedStatus = Property(StatusData, getFusedStatus, notify=globalStatusChanged)
elapsedTime = Property(float, lambda self: self.getFusedStatus().elapsedTime, notify=globalStatusChanged)
recursiveElapsedTime = Property(float, lambda self: self.getRecursiveFusedStatus().elapsedTime,
notify=globalStatusChanged)
# isCompatibilityNode: need lambda to evaluate the virtual function
isCompatibilityNode = Property(bool, lambda self: self._isCompatibilityNode(), constant=True)
isInputNode = Property(bool, lambda self: self._isInputNode(), constant=True)
globalExecModeChanged = Signal()
globalExecMode = Property(str, globalExecMode.fget, notify=globalExecModeChanged)
isExternal = Property(bool, isExtern, notify=globalExecModeChanged)
isComputed = Property(bool, _isComputed, notify=globalStatusChanged)
isComputable = Property(bool, _isComputable, notify=globalStatusChanged)
aliveChanged = Signal()
alive = Property(bool, alive.fget, alive.fset, notify=aliveChanged)
lockedChanged = Signal()
locked = Property(bool, getLocked, setLocked, notify=lockedChanged)
duplicates = Property(Variant, lambda self: self._duplicates, constant=True)
hasDuplicatesChanged = Signal()
hasDuplicates = Property(bool, lambda self: self._hasDuplicates, notify=hasDuplicatesChanged)
outputAttrEnabledChanged = Signal()
hasImageOutput = Property(bool, hasImageOutputAttribute, notify=outputAttrEnabledChanged)
hasSequenceOutput = Property(bool, hasSequenceOutputAttribute, notify=outputAttrEnabledChanged)
has3DOutput = Property(bool, has3DOutputAttribute, notify=outputAttrEnabledChanged)
class Node(BaseNode):
"""
A standard Graph node based on a node type.
"""
def __init__(self, nodeType, position=None, parent=None, uid=None, **kwargs):
super(Node, self).__init__(nodeType, position, parent=parent, uid=uid, **kwargs)
if not self.nodeDesc:
raise UnknownNodeTypeError(nodeType)
self.packageName = self.nodeDesc.packageName
self.packageVersion = self.nodeDesc.packageVersion
self._internalFolder = "{cache}/{nodeType}/{uid}"
self._sourceCodeFolder = self.nodeDesc.sourceCodeFolder
for attrDesc in self.nodeDesc.inputs:
self._attributes.add(attributeFactory(attrDesc, kwargs.get(attrDesc.name, None), isOutput=False, node=self))
for attrDesc in self.nodeDesc.outputs:
self._attributes.add(attributeFactory(attrDesc, kwargs.get(attrDesc.name, None), isOutput=True, node=self))
for attrDesc in self.nodeDesc.internalInputs:
self._internalAttributes.add(attributeFactory(attrDesc, kwargs.get(attrDesc.name, None), isOutput=False,
node=self))
# Declare events for specific output attributes
for attr in self._attributes:
if attr.isOutput and attr.desc.semantic == "image":
attr.enabledChanged.connect(self.outputAttrEnabledChanged)
# List attributes per UID
for attr in self._attributes:
if attr.isInput and attr.invalidate:
self.invalidatingAttributes.add(attr)
# Add internal attributes with a UID to the list
for attr in self._internalAttributes:
if attr.invalidate:
self.invalidatingAttributes.add(attr)
def setAttributeValues(self, values):
# initialize attribute values
for k, v in values.items():
if not self.hasAttribute(k):
# skip missing attributes
continue
attr = self.attribute(k)
attr.value = v
def upgradeAttributeValues(self, values):
# initialize attribute values
for k, v in values.items():
if not self.hasAttribute(k):
# skip missing attributes
continue
attr = self.attribute(k)
try:
attr.upgradeValue(v)
except ValueError:
pass
def setInternalAttributeValues(self, values):
# initialize internal attribute values
for k, v in values.items():
if not self.hasInternalAttribute(k):
# skip missing attributes
continue
attr = self.internalAttribute(k)
attr.value = v
def upgradeInternalAttributeValues(self, values):
# initialize internal attibute values
for k, v in values.items():
if not self.hasInternalAttribute(k):
# skip missing atributes
continue
attr = self.internalAttribute(k)
try:
attr.upgradeValue(v)
except ValueError:
pass
def toDict(self):
inputs = {k: v.getExportValue() for k, v in self._attributes.objects.items() if v.isInput}
internalInputs = {k: v.getExportValue() for k, v in self._internalAttributes.objects.items()}
outputs = ({k: v.getExportValue() for k, v in self._attributes.objects.items()
if v.isOutput and not v.desc.isDynamicValue})
return {
'nodeType': self.nodeType,
'position': self._position,
'parallelization': {
'blockSize': self.nodeDesc.parallelization.blockSize if self.isParallelized else 0,
'size': self.size,
'split': self.nbParallelizationBlocks
},
'uid': self._uid,
'internalFolder': self._internalFolder,
'inputs': {k: v for k, v in inputs.items() if v is not None}, # filter empty values
'internalInputs': {k: v for k, v in internalInputs.items() if v is not None},
'outputs': outputs,
}
def _updateChunks(self):
""" Update Node's computation task splitting into NodeChunks based on its description """
if isinstance(self.nodeDesc, desc.InputNode):
return
self.setSize(self.nodeDesc.size.computeSize(self))
if self.isParallelized:
try:
ranges = self.nodeDesc.parallelization.getRanges(self)
if len(ranges) != len(self._chunks):
self._chunks.setObjectList([NodeChunk(self, range) for range in ranges])
for c in self._chunks:
c.statusChanged.connect(self.globalStatusChanged)
else:
for chunk, range in zip(self._chunks, ranges):
chunk.range = range
except RuntimeError:
# TODO: set node internal status to error
logging.warning("Invalid Parallelization on node {}".format(self._name))
self._chunks.clear()
else:
if len(self._chunks) != 1:
self._chunks.setObjectList([NodeChunk(self, desc.Range())])
self._chunks[0].statusChanged.connect(self.globalStatusChanged)
else:
self._chunks[0].range = desc.Range()
class CompatibilityIssue(Enum):
"""
Enum describing compatibility issues when deserializing a Node.
"""
UnknownIssue = 0 # unknown issue fallback
UnknownNodeType = 1 # the node type has no corresponding description class
VersionConflict = 2 # mismatch between node's description version and serialized node data
DescriptionConflict = 3 # mismatch between node's description attributes and serialized node data
UidConflict = 4 # mismatch between computed UIDs and UIDs stored in serialized node data
class CompatibilityNode(BaseNode):
"""
Fallback BaseNode subclass to instantiate Nodes having compatibility issues with current type description.
CompatibilityNode creates an 'empty-shell' exposing the deserialized node as-is,
with all its inputs and precomputed outputs.
"""
def __init__(self, nodeType, nodeDict, position=None, issue=CompatibilityIssue.UnknownIssue, parent=None):
super(CompatibilityNode, self).__init__(nodeType, position, parent)
self.issue = issue
# Make a deepcopy of nodeDict to handle CompatibilityNode duplication
# and be able to change modified inputs (see CompatibilityNode.toDict)
self.nodeDict = copy.deepcopy(nodeDict)
version = self.nodeDict.get("version")
self.version = Version(version) if version else None
self._inputs = self.nodeDict.get("inputs", {})
self._internalInputs = self.nodeDict.get("internalInputs", {})
self.outputs = self.nodeDict.get("outputs", {})
self._internalFolder = self.nodeDict.get("internalFolder", "")
self._uid = self.nodeDict.get("uid", None)
# Restore parallelization settings
self.parallelization = self.nodeDict.get("parallelization", {})
self.splitCount = self.parallelization.get("split", 1)
self.setSize(self.parallelization.get("size", 1))
# Create input attributes
for attrName, value in self._inputs.items():
self._addAttribute(attrName, value, isOutput=False)
# Create outputs attributes
for attrName, value in self.outputs.items():
self._addAttribute(attrName, value, isOutput=True)
# Create internal attributes
for attrName, value in self._internalInputs.items():
self._addAttribute(attrName, value, isOutput=False, internalAttr=True)
# Create NodeChunks matching serialized parallelization settings
self._chunks.setObjectList([
NodeChunk(self, desc.Range(i, blockSize=self.parallelization.get("blockSize", 0)))
for i in range(self.splitCount)
])
def _isCompatibilityNode(self):
return True
@staticmethod
def attributeDescFromValue(attrName, value, isOutput):
"""
Generate an attribute description (desc.Attribute) that best matches 'value'.
Args:
attrName (str): the name of the attribute
value: the value of the attribute
isOutput (bool): whether the attribute is an output
Returns:
desc.Attribute: the generated attribute description
"""
params = {
"name": attrName, "label": attrName,
"description": "Incompatible parameter",
"value": value, "invalidate": False,
"group": "incompatible"
}
if isinstance(value, bool):
return desc.BoolParam(**params)
if isinstance(value, int):
return desc.IntParam(range=None, **params)
elif isinstance(value, float):
return desc.FloatParam(range=None, **params)
elif isinstance(value, str):
if isOutput or os.path.isabs(value):
return desc.File(**params)
elif Attribute.isLinkExpression(value):
# Do not consider link expression as a valid default desc value.
# When the link expression is applied and transformed to an actual link,
# the systems resets the value using `Attribute.resetToDefaultValue` to indicate
# that this link expression has been handled.
# If the link expression is stored as the default value, it will never be cleared,
# leading to unexpected behavior where the link expression on a CompatibilityNode
# could be evaluated several times and/or incorrectly.
params["value"] = ""
return desc.File(**params)
else:
return desc.StringParam(**params)
# List/GroupAttribute: recursively build descriptions
elif isinstance(value, (list, dict)):
del params["value"]
del params["invalidate"]
attrDesc = None
if isinstance(value, list):
elt = value[0] if value else "" # Fallback: empty string value if list is empty
eltDesc = CompatibilityNode.attributeDescFromValue("element", elt, isOutput)
attrDesc = desc.ListAttribute(elementDesc=eltDesc, **params)
elif isinstance(value, dict):
groupDesc = []
for key, value in value.items():
eltDesc = CompatibilityNode.attributeDescFromValue(key, value, isOutput)
groupDesc.append(eltDesc)
attrDesc = desc.GroupAttribute(groupDesc=groupDesc, **params)
# Override empty default value with
attrDesc._value = value
return attrDesc
# Handle any other type of parameters as Strings
return desc.StringParam(**params)
@staticmethod
def attributeDescFromName(refAttributes, name, value, strict=True):
"""
Try to find a matching attribute description in refAttributes for given attribute 'name' and 'value'.
Args:
refAttributes ([desc.Attribute]): reference Attributes to look for a description
name (str): attribute's name
value: attribute's value
strict: strict test for the match (for instance, regarding a group with some parameter changes)
Returns:
desc.Attribute: an attribute description from refAttributes if a match is found, None otherwise.
"""
# from original node description based on attribute's name
attrDesc = next((d for d in refAttributes if d.name == name), None)
if attrDesc is None:
return None
# We have found a description, and we still need to
# check if the value matches the attribute description.
#
# If it is a serialized link expression (no proper value to set/evaluate)
if Attribute.isLinkExpression(value):
return attrDesc
# If it passes the 'matchDescription' test
if attrDesc.matchDescription(value, strict):
return attrDesc
return None
def _addAttribute(self, name, val, isOutput, internalAttr=False):
"""
Add a new attribute on this node.
Args:
name (str): the name of the attribute
val: the attribute's value
isOutput: whether the attribute is an output
internalAttr: whether the attribute is internal
Returns:
bool: whether the attribute exists in the node description
"""
attrDesc = None
if self.nodeDesc:
if internalAttr:
refAttrs = self.nodeDesc.internalInputs
else:
refAttrs = self.nodeDesc.outputs if isOutput else self.nodeDesc.inputs
attrDesc = CompatibilityNode.attributeDescFromName(refAttrs, name, val)
matchDesc = attrDesc is not None
if attrDesc is None:
attrDesc = CompatibilityNode.attributeDescFromValue(name, val, isOutput)
attribute = attributeFactory(attrDesc, val, isOutput, self)
if internalAttr:
self._internalAttributes.add(attribute)
else:
self._attributes.add(attribute)
return matchDesc
@property
def issueDetails(self):
if self.issue == CompatibilityIssue.UnknownNodeType:
return "Unknown node type: '{}'.".format(self.nodeType)
elif self.issue == CompatibilityIssue.VersionConflict:
return "Node version '{}' conflicts with current version '{}'.".format(
self.nodeDict["version"], nodeVersion(self.nodeDesc)
)
elif self.issue == CompatibilityIssue.DescriptionConflict:
return "Node attributes do not match node description."
elif self.issue == CompatibilityIssue.UidConflict:
return "Node UID differs from the expected one."
else:
return "Unknown error."
@property
def inputs(self):
""" Get current node inputs, where links could differ from original serialized node data
(i.e after node duplication) """
# if node has not been added to a graph, return serialized node inputs
if not self.graph:
return self._inputs
return {k: v.getExportValue() for k, v in self._attributes.objects.items() if v.isInput}
@property
def internalInputs(self):
""" Get current node's internal attributes """
if not self.graph:
return self._internalInputs
return {k: v.getExportValue() for k, v in self._internalAttributes.objects.items()}
def toDict(self):
"""
Return the original serialized node that generated a compatibility issue.
Serialized inputs are updated to handle instances that have been duplicated
and might be connected to different nodes.
"""
# update inputs to get up-to-date connections
self.nodeDict.update({"inputs": self.inputs})
# update position
self.nodeDict.update({"position": self.position})
return self.nodeDict
@property
def canUpgrade(self):
""" Return whether the node can be upgraded.
This is the case when the underlying node type has a corresponding description. """
return self.nodeDesc is not None
def upgrade(self):
"""
Return a new Node instance based on original node type with common inputs initialized.
"""
if not self.canUpgrade:
raise NodeUpgradeError(self.name, "No matching node type")
# inputs matching current type description
commonInputs = []
for attrName, value in self._inputs.items():
if self.attributeDescFromName(self.nodeDesc.inputs, attrName, value, strict=False):
# store attributes that could be used during node upgrade
commonInputs.append(attrName)
commonInternalAttributes = []
for attrName, value in self._internalInputs.items():
if self.attributeDescFromName(self.nodeDesc.internalInputs, attrName, value, strict=False):
# store internal attributes that could be used during node upgrade
commonInternalAttributes.append(attrName)
node = Node(self.nodeType, position=self.position)
# convert attributes from a list of tuples into a dict
attrValues = {key: value for (key, value) in self.inputs.items()}
intAttrValues = {key: value for (key, value) in self.internalInputs.items()}
# Use upgrade method of the node description itself if available
try:
upgradedAttrValues = node.nodeDesc.upgradeAttributeValues(attrValues, self.version)
except Exception as e:
logging.error("Error in the upgrade implementation of the node: {}.\n{}".format(self.name, repr(e)))
upgradedAttrValues = attrValues
if not isinstance(upgradedAttrValues, dict):
logging.error("Error in the upgrade implementation of the node: {}. The return type is incorrect.".
format(self.name))
upgradedAttrValues = attrValues
node.upgradeAttributeValues(upgradedAttrValues)
node.upgradeInternalAttributeValues(intAttrValues)
return node
compatibilityIssue = Property(int, lambda self: self.issue.value, constant=True)
canUpgrade = Property(bool, canUpgrade.fget, constant=True)
issueDetails = Property(str, issueDetails.fget, constant=True)