Module tf.volumes.extract
Extract
Usage
from tf.volumes import extract
extract(
workLocation,
volumesLocation,
volumes=None or dict of top-level section titles/numbers
)
Expand source code Browse git
"""
# Extract
## Usage
``` python
from tf.volumes import extract
extract(
workLocation,
volumesLocation,
volumes=None or dict of top-level section titles/numbers
)
```
"""
import collections
from ..parameters import OTYPE, OSLOTS, OWORK, OINTERF, OINTERT
from ..core.fabric import FabricCore
from ..core.timestamp import Timestamp, SILENT_D, DEEP, silentConvert
from ..core.helpers import getAllRealFeatures, console
from ..core.files import (
fileOpen,
unexpanduser as ux,
dirEmpty,
isFile,
isDir,
dirRemove,
scanDir,
)
DEBUG = False
OWORKI = "oworki"
ALLSLOTS = "allSlots"
TM = Timestamp()
indent = TM.indent
info = TM.info
warning = TM.warning
error = TM.error
setSilent = TM.setSilent
isSilent = TM.isSilent
def getVolumes(volumesLocation):
"""Lists volumes of a work that exist in a given directory.
A directory is a volume if it contains the file `otype.tf` and that file
has a line starting with `@volume=`*xxx* where *xxx* is the name of the directory.
Parameters
----------
volumesLocation: string
The directory to search for volumes.
Returns
-------
None or list
If `volumesLocation` does not exist or is not a directory, None
is returned. Otherwise a list of subdirectories that are modules.
"""
if not isDir(volumesLocation):
return None
volumes = []
with scanDir(volumesLocation) as dh:
for entry in dh:
vol = entry.name
if entry.is_dir() and not vol.startswith("."):
triggerFile = f"{volumesLocation}/{vol}/{OTYPE}.tf"
triggerLine = f"@volume={vol}\n"
if isFile(triggerFile):
with fileOpen(triggerFile) as fh:
triggered = False
for line in fh:
if line == triggerLine:
triggered = True
break
if triggered:
volumes.append(vol)
return sorted(volumes)
def extract(
workLocation,
volumesLocation,
volumes=True,
byTitle=True,
silent=SILENT_D,
api=None,
overwrite=None,
checkOnly=False,
show=False,
):
"""Extracts volumes of a work.
The volumes are new TF datasets, the work is an existing TF data set.
Volumes of a work consist of collections of its top-level sections.
You can define volumes by passing a volume specification.
If the specification `True` is given, a volume will be created for every single
top-level section.
Volumes will get a node feature `owork` which maps nodes in the volume to
nodes in the work.
!!! note "use of feature `owork`"
If volumes are combined to a work, nodes in distinct volumes may
correspond to a single node in the work. In that case, they have the
same value in the `owork` feature.
When combining, such nodes are merged into one node in the work,
with slots the union of the slots of those nodes in the volumes.
See also `tf.volumes.collect`.
!!! caution "inter-volume edges"
Some edge features may link nodes across volumes.
When creating a volume, we leave out those edges.
Doing so, we loose information, which prevents us to reinstate
inter volume edges when we collect volumes.
That's why we'll save those inter-volume edges in two special features.
!!! caution "inter-version edges"
Features with names starting in `omap@` contain node maps from
older to newer versions.
These will be excluded from volumes.
Volumes will also get two node features `ointerfrom` and `ointerto`.
For each node `f` in the volume, `ointerfrom` has a value composed of
all work nodes `t` outside the volume that are reached by an edge
named `e` from `f` with value *val*.
For each node `t` in the volume, `ointerto` has a value composed of
all work nodes `f` outside the volume that reach `t` by an edge
named `e` with value *val*.
More precisely, the keys of `ointerf` and `ointert` are nodes `nW` of the
*original work* that correspond with nodes in the volume that have outgoing resp.
incoming edges to resp. from other volumes.
Each value of `oninterf` and `ointert` is a semicolon separated list of
`mW`, `e`, `doValues`, `valueType` , `value`
where
`mW` is the node in the *original work* reached by `nW` or that reaches `nW`
`e` is the name of the edge feature in question
`doValues` is `v` if the edge feature has values and `x` otherwise
`valueType` is `i` (`int`) or `s` (`str`)
`value` is the value assigned by the edge feature to the edge from `nW` to `mW`
or from `mW` to `nW`. If the edge does not have values it is a dummy value `x`.
Parameters
----------
workLocation: string
The directory where the dataset resides.
volumesLocation: string
The directory under which the feature files of the volumes
will be written.
volumes: boolean or dict or set, optional True
If True, extracts all top-level sections into separate volumes.
If it is a dict, the keys are names for the volumes, and the values
are tuples or lists of top-level sections that make up the volumes.
If it is a set, each member is an tuple of top-level sections that
belong to that volume.
In this case, each volume gets a generated name.
The top-level sections must be specified by their title if
`byTitle` is True, else by their sequence number.
If names for volumes have to be generated,
they will consist of the top-level section specifications, separated by a "-".
!!! caution "Disjointness"
All volumes must be disjoint, they cannot have top-level sections
in common.
byTitle: boolean, optional True
Whether the top-level sections are named by their sequence numbers
(starting at 1).
or by their titles.
Default: by their titles.
Note, that depending on the work, section titles may be strings or integers.
silent: string, optional tf.core.timestamp.SILENT_D
See `tf.core.timestamp.Timestamp`
api: object, optional None
If given, assume it is the TF API of a loaded work
from which the volumes are to be extracted.
In this case, the `workLocation` parameter is not used.
If absent or `None`, the dataset at `workLocation`
will be loaded by TF, and its API will be used subsequently.
overwrite: boolean, optional None
If True, the volumes defined by `volumes` will be
all be created and will replace any existing volumes of the same names.
If None, only missing volumes will be created. No check will be performed
as to whether existing volumes conform to the volume specifications.
If False, refuses to proceed if any of the volume directories already exist.
checkOnly: boolean, optional False
If True, only checks whether there is work to do based on the values
of the `volumes` and `overwrite` parameters.
If there is an error, returns False, otherwise returns the volumes in as
far as they have to be extracted.
show: boolean, optional False
If True, does not return anything, but pretty prints the result
to the screen.
Returns
-------
dict
For each volume an item,
whose key is the name of the volume and whose value is a dict with
items `location` (on disk) and `new` (whether the volume has been created
by this call).
Example
-------
volumeList = extract(
'clariah-gm/tf/0.9.1',
'clariah-gm/asvolumes/tf/0.9.1',
)
This will extract the top-level sections of the missives corpus
into that many volumes.
Example
-------
volumeList = extract(
'clariah-gm/tf/0.9.1',
'clariah-gm/asvolumes/tf/0.9.1',
volumes=dict(
early=(1,2,3,4,5,6,7,8),
late=(9, 10, 11, 12),
)
)
This will create 2 volumes, named `early` and `late`,
where `early` consists of top-level sections 1-8,
and `late` consists of top-level sections 9-12.
Top-level section 13 will not be extracted into a volume.
Example
-------
volumeList = extract(
'bhsa/tf/2021',
'bhsa/asvolumes/tf/2021',
)
This will extract the books of the bible as separate volumes.
Example
-------
volumeList = extract(
'bhsa/tf/2021',
'bhsa/asvolumes/tf/2021',
volumes=dict(
thora=("Genesis", "Exodus", "Leviticus", "Numeri", "Deuteronomy"),
poetry=("Psalms", "Proverbs"),
),
)
This will extract two volumes of the bible:
`thora` with the first 5 books and `poetry` with two poetic books.
"""
silent = silentConvert(silent)
givenVolumes = set()
volumeData = {}
def checkVolumeLocs():
good = True
removable = set()
for name, v in volumeData.items():
loc = f"{volumesLocation}/{name}"
v["location"] = loc
if not dirEmpty(loc):
if overwrite is None:
info(
f"Volume {name} already exists and will not be recreated",
tm=False,
)
removable.add(name)
else:
if overwrite:
dirRemove(loc)
info(f"Volume {name} exists and will be recreated", tm=False)
else:
good = False
error(
f"Volume {name} already exists in {ux(loc)}",
tm=False,
)
for name in removable:
del volumeData[name]
return good
def checkVolumes():
info("Check volumes ...")
indent(level=1)
good = True
if volumes is not True:
givenVolumes.clear()
if type(volumes) is dict:
for name, heads in volumes.items():
volumeData[name] = dict(heads=heads)
givenVolumes.add(name)
else:
for heads in volumes:
headRep = "-".join(str(head) for head in heads)
volumeData[headRep] = dict(heads=heads)
givenVolumes.add(headRep)
headIndex = {}
for name, v in volumeData.items():
heads = v["heads"]
if not heads:
error("Empty volumes not allowed")
good = False
continue
for head in heads:
seenName = headIndex.get(head, None)
if seenName:
error(
f"Section {head} of volume {seenName}"
f" reoccurs in volume {name}"
)
good = False
headIndex[head] = name
if good:
good = checkVolumeLocs()
return good
def checkVolumes2():
givenVolumes.clear()
if volumes is True:
for head in toplevels:
volumeData[head] = dict(heads=(head,))
givenVolumes.add(head)
if not checkVolumeLocs():
return False
good = True
errors = set()
for name, v in volumeData.items():
thisGood = True
for head in v["heads"]:
if head not in toplevels:
errors.add(head)
thisGood = False
if not thisGood:
good = False
if errors:
extra = "title" if byTitle else "number"
for head in sorted(errors):
error(f"No such {toplevelType} {extra}: {head}")
indent(level=0)
if good:
info("volumes ok")
return good
if api:
TF = api.TF
else:
TF = FabricCore(locations=workLocation, silent=silent)
api = TF.load("", silent=silent) if checkOnly else TF.loadAll(silent=silent)
if not api:
return False
T = getattr(api, "T", None)
if T is None:
error("This work has no Text-API", tm=False)
return False
sectionTypes = T.sectionTypes
if not sectionTypes:
error("This work has no section levels", tm=False)
return False
toplevelType = sectionTypes[0]
E = api.E
Eall = api.Eall
Es = api.Es
F = api.F
Fall = api.Fall
Fs = api.Fs
L = api.L
C = api.C
slotType = F.otype.slotType
maxSlot = E.oslots.maxSlot
fOtypeData = F.otype.data
eOslotsData = E.oslots.data
allFeatures = getAllRealFeatures(api)
metaDataTotal = {feat: TF.features[feat].metaData for feat in allFeatures}
nodeFeatureData = {
feat: Fs(feat).data for feat in Fall() if feat != OTYPE and feat in allFeatures
}
edgeFeatureData = {
feat: (
Es(feat).doValues,
"i" if Es(feat).meta["valueType"] == "int" else "s",
Es(feat).data,
Es(feat).dataInv,
)
for feat in Eall()
if feat != OSLOTS and feat in allFeatures
}
nTypeInfo = {}
for nType, av, nF, nT in C.levels.data[0:-1]:
nTypeInfo[nType] = (nF, nT)
toplevels = {}
def getTopLevels():
nodes = F.otype.s(toplevelType)
for i, nW in enumerate(nodes):
head = T.sectionFromNode(nW)[0] if byTitle else i + 1
toplevels[head] = dict(
firstSlot=L.d(nW, otype=slotType)[0],
lastSlot=L.d(nW, otype=slotType)[-1],
)
info(f"Work consists of {len(toplevels)} {toplevelType}s:", tm=False)
indent(level=1, reset=True)
for head, lv in toplevels.items():
firstSlot = lv["firstSlot"]
lastSlot = lv["lastSlot"]
nSlots = lastSlot - firstSlot + 1
info(
f"{toplevelType} {head:<20}: with {nSlots:>8} slots",
tm=False,
)
indent(level=0)
return True
def distributeNodes():
info("Distribute nodes over volumes ...")
indent(level=1, reset=True)
up = C.levUp.data
for name, v in volumeData.items():
info(f"volume {name} ...")
indent(level=2, reset=True)
owork = {}
allNodes = set()
allSlots = set()
sV = 0
heads = v["heads"]
for head in heads:
lv = toplevels[head]
firstSlot = lv["firstSlot"]
lastSlot = lv["lastSlot"]
nSlots = lastSlot - firstSlot + 1
info(f"{toplevelType} {head:<20} with {nSlots} slots")
for sW in range(firstSlot, lastSlot + 1):
sV += 1
allSlots.add(sW)
owork[sV] = sW
allNodes |= set(up[sW - 1])
indent(level=1)
allNodes = sorted(allNodes)
nodesByType = collections.defaultdict(list)
for nW in allNodes:
nType = fOtypeData[nW - maxSlot - 1]
nodesByType[nType].append(nW)
nV = sV + 1
indent(level=2)
for nType, nodesW in nodesByType.items():
startV = nV
for nW in nodesW:
owork[nV] = nW
nV += 1
if DEBUG:
info(
f"node type {nType:<20}: {startV:>8} - {nV - 1:>8}",
tm=False,
)
indent(level=1)
v[ALLSLOTS] = allSlots
v[OWORK] = owork
v[OWORKI] = {m: k for (k, m) in owork.items()}
info(f"volume {name:<20} with {sV} slots" f" and {len(owork):>8} nodes ...")
indent(level=0)
info("distribution done")
return True
def remapFeatures():
info("Remap features ...")
indent(level=1, reset=True)
for name, v in volumeData.items():
owork = v[OWORK]
oworki = v[OWORKI]
allSlots = v[ALLSLOTS]
info(f"volume {name} with {len(owork):>8} nodes ...")
# metadata
metaData = {}
v["metaData"] = metaData
headStr = "-".join(str(head) for head in v["heads"])
volumeMeta = name if headStr == str(name) else f"{name}:{headStr}"
for feat, meta in metaDataTotal.items():
metaData[feat] = {k: m for (k, m) in meta.items()}
metaData[feat]["volume"] = volumeMeta
for tp, feat, desc in (
("int", OWORK, "mapping from nodes in the volume to nodes in the work"),
("str", OINTERF, "all outgoing inter-volume edges"),
("str", OINTERT, "all incoming inter-volume edges"),
):
metaData[feat] = {k: m for (k, m) in metaData[OTYPE].items()}
metaData[feat]["description"] = desc
metaData[feat]["valueType"] = tp
# node features
nodeFeatures = {feat: {} for feat in nodeFeatureData}
v["nodeFeatures"] = nodeFeatures
nodeFeatures[OWORK] = owork
otype = {}
ointerf = {}
ointert = {}
nodeFeatures[OTYPE] = otype
nodeFeatures[OINTERF] = ointerf
nodeFeatures[OINTERT] = ointert
# edge features
edgeFeatures = {feat: {} for feat in edgeFeatureData}
v["edgeFeatures"] = edgeFeatures
oslots = {}
edgeFeatures[OSLOTS] = oslots
for nV, nW in owork.items():
otype[nV] = slotType if nW <= maxSlot else fOtypeData[nW - maxSlot - 1]
if nW > maxSlot:
oslots[nV] = set(
oworki[s]
for s in eOslotsData[nW - maxSlot - 1]
if s in allSlots
)
if not oslots[nV]:
error(f"{otype[nV]} node v={nV} w={nW} has no slots", tm=False)
for feat, featD in nodeFeatureData.items():
val = featD.get(nW, None)
if val is not None:
nodeFeatures.setdefault(feat, {})[nV] = val
for feat, (doValues, valTp, featF, featT) in edgeFeatureData.items():
# outgoing edges are used to construct the in-volume edge
# and the inter-volume outgoing edges
if doValues:
metaData[feat]["edgeValues"] = True
valData = featF.get(nW, None)
doValuesRep = "v" if doValues else "x"
if valData is not None:
value = {} if doValues else set()
interItems = []
for tW in valData:
tV = oworki.get(tW, None)
if doValues:
val = valData[tW]
if tV is None:
valRep = str(val) if doValues else "x"
interItems.append(
(tW, feat, doValuesRep, valTp, valRep)
)
else:
if doValues:
value[tV] = val
else:
value.add(tV)
if value:
edgeFeatures.setdefault(feat, {})[nV] = value
if interItems:
ointerf[nW] = ";".join(
",".join(str(i) for i in item) for item in interItems
)
# incoming edges are only used to construct
# the inter-volume incoming edges
valData = featT.get(nW, None)
if valData is not None:
value = set()
interItems = []
for fW in valData:
fV = oworki.get(fW, None)
if doValues:
val = valData[fW]
if fV is None:
valRep = str(val) if doValues else "x"
interItems.append(
(fW, feat, doValuesRep, valTp, valRep)
)
if interItems:
ointert[nW] = ";".join(
",".join(str(i) for i in item) for item in interItems
)
indent(level=0)
info("remapping done")
return True
def writeTf():
info("Write volumes as TF datasets")
indent(level=1, reset=True)
good = True
for name, v in volumeData.items():
info(f"Writing volume {name}")
metaData = v["metaData"]
nodeFeatures = v["nodeFeatures"]
edgeFeatures = v["edgeFeatures"]
loc = f"{volumesLocation}/{name}"
v["location"] = loc
TF = FabricCore(locations=loc, silent=DEEP)
if not TF.save(
metaData=metaData,
nodeFeatures=nodeFeatures,
edgeFeatures=edgeFeatures,
silent=SILENT_D if DEBUG else DEEP,
):
good = False
indent(level=0)
if not good:
return False
info("writing done")
return good
def process():
indent(level=0, reset=True)
if not checkVolumes():
return None if show else False
if checkOnly:
if volumeData:
if show:
for name, v in volumeData.items():
location = ux(v["location"])
console(f"{name:<20} @ {location}")
else:
return volumeData
else:
if show:
console("No volumes")
else:
return {}
if not getTopLevels():
return None if show else False
if not checkVolumes2():
return None if show else False
if checkOnly:
if show:
for name, v in volumeData.items():
location = ux(v["location"])
console(f"{name:<20} @ {location}")
else:
return volumeData
if not distributeNodes():
return None if show else False
if not remapFeatures():
return None if show else False
if not writeTf():
return None if show else False
info("All done")
result = {
name: dict(location=f"{volumesLocation}/{name}", new=name in volumeData)
for name in sorted(givenVolumes | set(volumeData))
}
if show:
for name, v in result.items():
new = " (new)" if v["new"] else " " * 6
location = ux(v["location"])
console(f"{name:<20}{new} @ {location}")
else:
return result
wasSilent = isSilent()
setSilent(silent)
result = process()
setSilent(wasSilent)
return None if show else result
Functions
def extract(workLocation, volumesLocation, volumes=True, byTitle=True, silent='auto', api=None, overwrite=None, checkOnly=False, show=False)
-
Extracts volumes of a work.
The volumes are new TF datasets, the work is an existing TF data set. Volumes of a work consist of collections of its top-level sections.
You can define volumes by passing a volume specification. If the specification
True
is given, a volume will be created for every single top-level section.Volumes will get a node feature
owork
which maps nodes in the volume to nodes in the work.use of feature
owork
If volumes are combined to a work, nodes in distinct volumes may correspond to a single node in the work. In that case, they have the same value in the
owork
feature. When combining, such nodes are merged into one node in the work, with slots the union of the slots of those nodes in the volumes.See also
tf.volumes.collect
.inter-volume edges
Some edge features may link nodes across volumes. When creating a volume, we leave out those edges. Doing so, we loose information, which prevents us to reinstate inter volume edges when we collect volumes. That's why we'll save those inter-volume edges in two special features.
inter-version edges
Features with names starting in
omap@
contain node maps from older to newer versions. These will be excluded from volumes.Volumes will also get two node features
ointerfrom
andointerto
.For each node
f
in the volume,ointerfrom
has a value composed of all work nodest
outside the volume that are reached by an edge namede
fromf
with value val.For each node
t
in the volume,ointerto
has a value composed of all work nodesf
outside the volume that reacht
by an edge namede
with value val.More precisely, the keys of
ointerf
andointert
are nodesnW
of the original work that correspond with nodes in the volume that have outgoing resp. incoming edges to resp. from other volumes.Each value of
oninterf
andointert
is a semicolon separated list ofmW
,e
,doValues
,valueType
,value
where
mW
is the node in the original work reached bynW
or that reachesnW
e
is the name of the edge feature in questiondoValues
isv
if the edge feature has values andx
otherwisevalueType
isi
(int
) ors
(str
)value
is the value assigned by the edge feature to the edge fromnW
tomW
or frommW
tonW
. If the edge does not have values it is a dummy valuex
.Parameters
workLocation
:string
- The directory where the dataset resides.
volumesLocation
:string
- The directory under which the feature files of the volumes will be written.
volumes
:boolean
ordict
orset
, optionalTrue
-
If True, extracts all top-level sections into separate volumes.
If it is a dict, the keys are names for the volumes, and the values are tuples or lists of top-level sections that make up the volumes.
If it is a set, each member is an tuple of top-level sections that belong to that volume. In this case, each volume gets a generated name.
The top-level sections must be specified by their title if
byTitle
is True, else by their sequence number.If names for volumes have to be generated, they will consist of the top-level section specifications, separated by a "-".
Disjointness
All volumes must be disjoint, they cannot have top-level sections in common.
byTitle
:boolean
, optionalTrue
- Whether the top-level sections are named by their sequence numbers (starting at 1). or by their titles. Default: by their titles. Note, that depending on the work, section titles may be strings or integers.
silent
:string
, optionalSILENT_D
- See
Timestamp
api
:object
, optionalNone
- If given, assume it is the TF API of a loaded work
from which the volumes are to be extracted.
In this case, the
workLocation
parameter is not used. If absent orNone
, the dataset atworkLocation
will be loaded by TF, and its API will be used subsequently. overwrite
:boolean
, optionalNone
- If True, the volumes defined by
volumes
will be all be created and will replace any existing volumes of the same names. If None, only missing volumes will be created. No check will be performed as to whether existing volumes conform to the volume specifications. If False, refuses to proceed if any of the volume directories already exist. checkOnly
:boolean
, optionalFalse
- If True, only checks whether there is work to do based on the values
of the
volumes
andoverwrite
parameters. If there is an error, returns False, otherwise returns the volumes in as far as they have to be extracted. show
:boolean
, optionalFalse
- If True, does not return anything, but pretty prints the result to the screen.
Returns
dict
- For each volume an item,
whose key is the name of the volume and whose value is a dict with
items
location
(on disk) andnew
(whether the volume has been created by this call).
Example
volumeList = extract( 'clariah-gm/tf/0.9.1', 'clariah-gm/asvolumes/tf/0.9.1', )
This will extract the top-level sections of the missives corpus into that many volumes.
Example
volumeList = extract( 'clariah-gm/tf/0.9.1', 'clariah-gm/asvolumes/tf/0.9.1', volumes=dict( early=(1,2,3,4,5,6,7,8), late=(9, 10, 11, 12), ) )
This will create 2 volumes, named
early
andlate
, whereearly
consists of top-level sections 1-8, andlate
consists of top-level sections 9-12. Top-level section 13 will not be extracted into a volume.Example
volumeList = extract( 'bhsa/tf/2021', 'bhsa/asvolumes/tf/2021', )
This will extract the books of the bible as separate volumes.
Example
volumeList = extract( 'bhsa/tf/2021', 'bhsa/asvolumes/tf/2021', volumes=dict( thora=("Genesis", "Exodus", "Leviticus", "Numeri", "Deuteronomy"), poetry=("Psalms", "Proverbs"), ), )
This will extract two volumes of the bible:
thora
with the first 5 books andpoetry
with two poetic books. def getVolumes(volumesLocation)
-
Lists volumes of a work that exist in a given directory.
A directory is a volume if it contains the file
otype.tf
and that file has a line starting with@volume=
xxx where xxx is the name of the directory.Parameters
volumesLocation
:string
- The directory to search for volumes.
Returns
None
orlist
- If
volumesLocation
does not exist or is not a directory, None is returned. Otherwise a list of subdirectories that are modules.