def capture(self, interest, transport):
# print("capture cmd received start processing")
interestName = interest.getName()
if (interestName.size() >= 7):
#right format
segmentIndex = interestName.get(6).toSegment()
# print "request segmentIndex : ",segmentIndex
if segmentIndex == 0:
# print("a new picture")
#request a new picture
self.stream = io.BytesIO()
self.stream.flush()
self.segmentList = []
self.dataList = []
self.camera.capture(self.stream, 'jpeg')
#print("photo caputred in stream")
imageBytes = self.stream.getvalue()
print ("imageBytes %d" % len(imageBytes))
#segmentation
self.segmentNumber = len(imageBytes)/(self.segmentSize+1)+1
print("segmentNumber: %d" % self.segmentNumber)
for i in range(self.segmentNumber):
startIndex = i*self.segmentSize
if (i != self.segmentNumber -1):
segBytes = imageBytes[startIndex:(startIndex+self.segmentSize)]
else:
segBytes = imageBytes[startIndex:]
#self.segmentList.append(segBytes)
newName = interestName.getPrefix(-1).appendSegment(i)
#print newName.toUri()
data = Data(newName)
metaInfo = MetaInfo()
metaInfo.setFinalBlockId(Blob.fromRawStr(str(self.segmentNumber-1)))
data.setMetaInfo(metaInfo)
#data.setContent(Blob.fromRawStr(self.segmentList[i]))
data.setContent(Blob.fromRawStr(segBytes))
self.dataList.append(data)
self.sendData(self.dataList[0], transport, sign=False)
else:
self.sendData(self.dataList[segmentIndex], transport, sign=False)
def setMetaInfo(self, metaInfo):
"""
Set metaInfo to a copy of the given MetaInfo.
:param MetaInfo metaInfo: The MetaInfo which is copied.
:return: This Data so that you can chain calls to update values.
:rtype: Data
"""
self._metaInfo.set(MetaInfo() if metaInfo ==
None else MetaInfo(metaInfo))
self._changeCount += 1
return self
def __init__(self, value=None):
if isinstance(value, Data):
# Copy the values.
self._name = ChangeCounter(Name(value.getName()))
self._metaInfo = ChangeCounter(MetaInfo(value.getMetaInfo()))
self._signature = ChangeCounter(value.getSignature().clone())
self._content = value._content
self._defaultWireEncoding = value.getDefaultWireEncoding()
self._defaultWireEncodingFormat = value._defaultWireEncodingFormat
else:
self._name = ChangeCounter(
Name(value) if type(value) is Name else Name())
self._metaInfo = ChangeCounter(MetaInfo())
self._signature = ChangeCounter(Sha256WithRsaSignature())
self._content = Blob()
self._defaultWireEncoding = SignedBlob()
self._defaultWireEncodingFormat = None
self._getDefaultWireEncodingChangeCount = 0
self._changeCount = 0
from pyndn.control_parameters import ControlParameters
from pyndn.forwarding_flags import ForwardingFlags
for p in [("name",Name("yes"),Name("another")), ("faceId", 32, None), ("localControlFeature", 1, None), ("origin", 2, 9), ("cost", 1, None), ("forwardingFlags", ForwardingFlags(), ForwardingFlags()), ("expirationPeriod", 1000.1, None)]:
res = testPropertyRW( ControlParameters(), p[0], [p[1],p[2]])
if not res[0]: print(res)
# Data
#
from pyndn.data import Data
from pyndn.name import Name
from pyndn.meta_info import MetaInfo
from pyndn.signature import Signature
from pyndn.util.blob import Blob
# We do not test the signature property because clone is not yet implemented for it.
#
for p in [("name",Name("yes"),Name("another")), ("metaInfo", MetaInfo(), MetaInfo()), ("content", Blob("foo"), Blob("bar"))]:
res = testPropertyRW( Data(), p[0], [p[1],p[2]])
if not res[0]: print(res)
# ForwardingFlags
# All boolean, so use shortcut below
#
from pyndn.forwarding_flags import ForwardingFlags
for p in ["active", "childInherit", "advertise", "last", "capture", "local", "tap", "captureOk"]:
res = testPropertyRW( ForwardingFlags(), p, [True, False] )
if not res[0]: print(res)
# Interest
# TODO: We do not check exclude because there is no equals() for it yet.
# TODO: When passing None as the KeyLocator, it generates a blank KeyLocator object, so equivalence checks fail. Don't check None.
#
("forwardingFlags", ForwardingFlags(), ForwardingFlags()),
("expirationPeriod", 1000.1, None)]:
res = testPropertyRW(ControlParameters(), p[0], [p[1], p[2]])
if not res[0]: print(res)
# Data
#
from pyndn.data import Data
from pyndn.name import Name
from pyndn.meta_info import MetaInfo
from pyndn.signature import Signature
from pyndn.util.blob import Blob
# We do not test the signature property because clone is not yet implemented for it.
#
for p in [("name", Name("yes"), Name("another")),
("metaInfo", MetaInfo(), MetaInfo()),
("content", Blob("foo"), Blob("bar"))]:
res = testPropertyRW(Data(), p[0], [p[1], p[2]])
if not res[0]: print(res)
# ForwardingFlags
# All boolean, so use shortcut below
#
from pyndn.forwarding_flags import ForwardingFlags
for p in [
"active", "childInherit", "advertise", "last", "capture", "local",
"tap", "captureOk"
]:
res = testPropertyRW(ForwardingFlags(), p, [True, False])
if not res[0]: print(res)