request = HistoryReadRawModifiedRequest(1)
request.targets[0].address = doubleAddress
# configure the request further:
serviceSettings = HistoryReadRawModifiedSettings()
serviceSettings.startTime = DateTime(time.time() - 1)
serviceSettings.endTime = DateTime(time.time())
serviceSettings.callTimeoutSec = 2.0 # optional of course
serviceSettings.numValuesPerNode = 100
serviceSettings.maxAutoReadMore = 10
serviceSettings.isReadModified = False # we want raw historical data
request.serviceSettings = serviceSettings
request.serviceSettingsGiven = True
sessionSettings = SessionSettings()
sessionSettings.sessionTimeoutSec = 600.0 # optional of course
request.sessionSettings = sessionSettings
request.sessionSettingsGiven = True
# process the request
result = myClient.processRequest(request)
# print the result
print(str(result))
# process the result in the same way as before
except UafError, e:
print("Some error occurred: %s" %e)
raise
# defaultSessionSettings, but such a session exists already, so it can be reused!) # - the Write service will be invoked, with the defaultWriteSettings we configured before myClient.write( [address0, address1] , [ UInt32(60), Boolean(True) ] ) # ================================================================================================== # 2) Overriding the defaults # ================================================================================================== # If needed, you can also configure the settings for each service call, using the **kwargs arguments # of read/write/call/... # e.g. set some special session settings for a specific read() call: mySessionSettings = SessionSettings() mySessionSettings.connectTimeoutSec = 0.5 mySessionSettings.sessionTimeoutSec = 100.0 # simply mention 'sessionSettings = ...' to use these settings as a **kwarg: myClient.read( [address0, address1], sessionSettings = mySessionSettings ) # e.g. set some special service settings for a specific read() call: myReadSettings = ReadSettings() myReadSettings.callTimeoutSec = 0.5 myReadSettings.maxAgeSec = 1.0 # simply mention 'serviceSettings = ...' to use these settings as a **kwarg: myClient.read( [address0, address1], serviceSettings = myReadSettings ) # or combine them: myClient.read( [address0, address1], serviceSettings = myReadSettings, sessionSettings = mySessionSettings ) # e.g. set some special subscription settings for a specific createMonitoredData() call: mySubscriptionSettings = SubscriptionSettings() mySubscriptionSettings.publishingIntervalSec = 2.0
# now browse the root node
# (notice that there is also an argument called 'maxAutoBrowseNext', which we don't mention
# here because we can leave it at the default value (100), to make sure that BrowseNext is
# automatically being called for us as much as needed!)
firstLevelBrowseResult = myClient.browse([rootNode])
# Notice too that you can optionally provide a BrowseSettings and/or a SessionSettings argument
# for more detailed configuration, like this:
# OPTIONAL: let's specify a small call timeout, since the UaDemoServer is running
# on the local machine anyway:
browseSettings = BrowseSettings()
browseSettings.callTimeoutSec = 2.0
# OPTIONAL: and finally let's also specify that sessions should have a timeout of 600 seconds:
sessionSettings = SessionSettings()
sessionSettings.sessionTimeoutSec = 600.0
# now call the browse() function:
myClient.browse([rootNode], browseSettings = browseSettings, sessionSettings = sessionSettings)
# print the result
print(" - Browse result of the first level:")
print(" ---------------------------------")
print(firstLevelBrowseResult)
# we don't expect that "manual" BrowseNext calls are still needed, as the UAF will
# have done the BrowseNext calls up to 100 times automatically for us! If there would still be
# some continuation points left, then we surely have some unexpected problem!
assert len(firstLevelBrowseResult.targets[0].continuationPoint) == 0
# we can now continue browsing the other nodes that we discovered, all simultaneously!!!
noOfFoundReferences = len(firstLevelBrowseResult.targets[0].references)
# now browse the root node
# (notice that there is also an argument called 'maxAutoBrowseNext', which we don't mention
# here because we can leave it at the default value (100), to make sure that BrowseNext is
# automatically being called for us as much as needed!)
firstLevelBrowseResult = myClient.browse([rootNode])
# Notice too that you can optionally provide a BrowseSettings and/or a SessionSettings argument
# for more detailed configuration, like this:
# OPTIONAL: let's specify a small call timeout, since the UaDemoServer is running
# on the local machine anyway:
browseSettings = BrowseSettings()
browseSettings.callTimeoutSec = 2.0
# OPTIONAL: and finally let's also specify that sessions should have a timeout of 600 seconds:
sessionSettings = SessionSettings()
sessionSettings.sessionTimeoutSec = 600.0
# now call the browse() function:
myClient.browse([rootNode],
browseSettings=browseSettings,
sessionSettings=sessionSettings)
# print the result
print(" - Browse result of the first level:")
print(" ---------------------------------")
print(firstLevelBrowseResult)
# we don't expect that "manual" BrowseNext calls are still needed, as the UAF will
# have done the BrowseNext calls up to 100 times automatically for us! If there would still be
# some continuation points left, then we surely have some unexpected problem!
assert len(firstLevelBrowseResult.targets[0].continuationPoint) == 0
myClientSettings.defaultSubscriptionSettings.publishingIntervalSec = 0.5
myClientSettings.defaultSubscriptionSettings.lifeTimeCount = 600
myClientSettings.defaultReadSettings.callTimeoutSec = 2.0
myClientSettings.defaultReadSettings.maxAgeSec = 10.0
myClientSettings.defaultMethodCallSettings.callTimeoutSec = 2.0
myClientSettings.defaultWriteSettings.callTimeoutSec = 2.0
myClientSettings.defaultBrowseSettings.callTimeoutSec = 2.0
# and so on, and so on ...
# the clientSettings are in use as soon as you provide them again to the Client:
myClient.setClientSettings(myClientSettings)
# In case you want to choose different settings for specific read/write/... calls, then you can
# provide them also:
mySpecialSessionSettings = SessionSettings()
mySpecialSessionSettings.sessionTimeoutSec = 500.0
mySpecialSessionSettings.connectTimeoutSec = 0.5
mySpecialReadSettings = ReadSettings()
mySpecialReadSettings.callTimeoutSec = 2.0
mySpecialReadSettings.maxAgeSec = 10.0
result = myClient.read(addresses = [address_TSetpoint, address_HeaterStatus],
attributeId = pyuaf.util.attributeids.DisplayName,
sessionSettings = mySpecialSessionSettings,
serviceSettings = mySpecialReadSettings)
print("")
print("################################################################################################################")
print("Step 6: Learn how 'requests' and 'results' actually look like, and how you can configure them even more in detail")
# - the session we created before will be reused (as we're requesting a session with the
# defaultSessionSettings, but such a session exists already, so it can be reused!)
# - the Write service will be invoked, with the defaultWriteSettings we configured before
myClient.write([address0, address1], [UInt32(60), Boolean(True)])
# ==================================================================================================
# 2) Overriding the defaults
# ==================================================================================================
# If needed, you can also configure the settings for each service call, using the **kwargs arguments
# of read/write/call/...
# e.g. set some special session settings for a specific read() call:
mySessionSettings = SessionSettings()
mySessionSettings.connectTimeoutSec = 0.5
mySessionSettings.sessionTimeoutSec = 100.0
# simply mention 'sessionSettings = ...' to use these settings as a **kwarg:
myClient.read([address0, address1], sessionSettings=mySessionSettings)
# e.g. set some special service settings for a specific read() call:
myReadSettings = ReadSettings()
myReadSettings.callTimeoutSec = 0.5
myReadSettings.maxAgeSec = 1.0
# simply mention 'serviceSettings = ...' to use these settings as a **kwarg:
myClient.read([address0, address1], serviceSettings=myReadSettings)
# or combine them:
myClient.read([address0, address1],
serviceSettings=myReadSettings,
sessionSettings=mySessionSettings)
# e.g. set some special subscription settings for a specific createMonitoredData() call:
myClientSettings.defaultSubscriptionSettings.publishingIntervalSec = 0.5
myClientSettings.defaultSubscriptionSettings.lifeTimeCount = 600
myClientSettings.defaultReadSettings.callTimeoutSec = 2.0
myClientSettings.defaultReadSettings.maxAgeSec = 10.0
myClientSettings.defaultMethodCallSettings.callTimeoutSec = 2.0
myClientSettings.defaultWriteSettings.callTimeoutSec = 2.0
myClientSettings.defaultBrowseSettings.callTimeoutSec = 2.0
# and so on, and so on ...
# the clientSettings are in use as soon as you provide them again to the Client:
myClient.setClientSettings(myClientSettings)
# In case you want to choose different settings for specific read/write/... calls, then you can
# provide them also:
mySpecialSessionSettings = SessionSettings()
mySpecialSessionSettings.sessionTimeoutSec = 500.0
mySpecialSessionSettings.connectTimeoutSec = 0.5
mySpecialReadSettings = ReadSettings()
mySpecialReadSettings.callTimeoutSec = 2.0
mySpecialReadSettings.maxAgeSec = 10.0
result = myClient.read(
addresses=[address_TSetpoint, address_HeaterStatus],
attributeId=pyuaf.util.attributeids.DisplayName,
sessionSettings=mySpecialSessionSettings,
serviceSettings=mySpecialReadSettings,
)
print("")
print(
