def find_servers_on_network(self):
params = ua.FindServersOnNetworkParameters()
return self.bclient.find_servers_on_network(params)
def find_servers_on_network_test(client, logger):
defaultAddress = "opc.tcp://localhost:4841"
# No filters in FindServersOnNetworkRequest by default
params = ua.FindServersOnNetworkParameters()
# Register 1 server and retrieve it
local_register_server2(client, logger, "TestServer1", defaultAddress,
allServerCapabilities, True)
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - expect 1 registered server "{}"'.format(
"TestServer1"),
(1 == len(results.Servers)
and "TestServer1" == results.Servers[0].ServerName
and defaultAddress == results.Servers[0].DiscoveryUrl
and allServerCapabilities == results.Servers[0].ServerCapabilities))
# UnRegister 1 server and check not present anymore
local_register_server2(client, logger, "TestServer1", defaultAddress,
allServerCapabilities, False)
results = client.uaclient.find_servers_on_network(params)
logger.add_test('FindServersOnNetwork test - expect 0 registered server',
0 == len(results.Servers))
# Register 2 times same server name: expect only last record to be returned
local_register_server2(client, logger, "TestServer1", defaultAddress,
allServerCapabilities, True)
local_register_server2(client, logger, "TestServer1",
"opc.tcp://test:1000", allServerCapabilities, True)
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - expect only 1 registered server "{}" with last record content'
.format("TestServer1"),
(1 == len(results.Servers)
and "TestServer1" == results.Servers[0].ServerName
and "opc.tcp://test:1000" == results.Servers[0].DiscoveryUrl
and allServerCapabilities == results.Servers[0].ServerCapabilities))
# Register a second server with unknown capabilities
local_register_server2(client, logger, "TestServer2", defaultAddress,
["NA"], True)
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - expect 2 registered server 1 with all and 1 without capabilities',
(2 == len(results.Servers)
and "TestServer1" == results.Servers[0].ServerName
and allServerCapabilities == results.Servers[0].ServerCapabilities
and "TestServer2" == results.Servers[1].ServerName
and ["NA"] == results.Servers[1].ServerCapabilities))
# Register a third server with only 'LDS' capability
local_register_server2(client, logger, "TestServer3", defaultAddress,
["LDS"], True)
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - expect 3 registered server 1 with all, 1 without capabilities and 1 with "LDS" only',
(3 == len(results.Servers)
and "TestServer1" == results.Servers[0].ServerName
and allServerCapabilities == results.Servers[0].ServerCapabilities
and "TestServer2" == results.Servers[1].ServerName
and ["NA"] == results.Servers[1].ServerCapabilities
and "TestServer3" == results.Servers[2].ServerName
and ["LDS"] == results.Servers[2].ServerCapabilities))
# Filter using the capabilities: request all
params.ServerCapabilityFilter = allServerCapabilities
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - filter with all capabilities: expect only 1 registered server',
(1 == len(results.Servers)
and "TestServer1" == results.Servers[0].ServerName
and allServerCapabilities == results.Servers[0].ServerCapabilities))
# Filter using the capabilities: request 'LDS' capability only
params.ServerCapabilityFilter = ["LDS"]
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - filter with "LDS" capability: expect 2 registered server',
(2 == len(results.Servers)
and "TestServer1" == results.Servers[0].ServerName
and allServerCapabilities == results.Servers[0].ServerCapabilities
and "TestServer3" == results.Servers[1].ServerName
and ["LDS"] == results.Servers[1].ServerCapabilities))
# Retrieve the recordIds of the servers
params.ServerCapabilityFilter = []
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - retrieve recordId of 3 servers in numerical order',
(3 == len(results.Servers)
and results.Servers[0].RecordId < results.Servers[1].RecordId
and results.Servers[1].RecordId < results.Servers[2].RecordId))
recordIdServer1 = results.Servers[0].RecordId
recordIdServer2 = results.Servers[1].RecordId
recordIdServer3 = results.Servers[2].RecordId
# Request from recordId of 1st server
params.StartingRecordId = recordIdServer1
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - start with recordId of 1st server: expect 3 servers',
(3 == len(results.Servers)
and "TestServer1" == results.Servers[0].ServerName
and "TestServer2" == results.Servers[1].ServerName
and "TestServer3" == results.Servers[2].ServerName))
# Request from recordId of 2nd server
params.StartingRecordId = recordIdServer2
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - start with recordId of 2nd server: expect 2 servers',
(2 == len(results.Servers)
and "TestServer2" == results.Servers[0].ServerName
and "TestServer3" == results.Servers[1].ServerName))
# Request from recordId of 3rd server
params.StartingRecordId = recordIdServer3
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - start with recordId of 3rd server: expect 1 server',
(1 == len(results.Servers)
and "TestServer3" == results.Servers[0].ServerName))
# Request from recordId of 3rd server + 1
params.StartingRecordId = recordIdServer3 + 1
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - start with recordId of 3rd server + 1: expect 0 servers',
0 == len(results.Servers))
# Limit the number of results to 1 starting with 3rd recordId
params.StartingRecordId = recordIdServer3
params.MaxRecordsToReturn = 1
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - limit to 1 record starting with server3 recordId: expect server 3 only',
(1 == len(results.Servers)
and "TestServer3" == results.Servers[0].ServerName))
# Limit the number of results to 1 starting with 2nd recordId
params.StartingRecordId = recordIdServer2
params.MaxRecordsToReturn = 1
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - limit to 1 record starting with server2 recordId: expect server 2 only',
(1 == len(results.Servers)
and "TestServer2" == results.Servers[0].ServerName))
# Limit the number of results to 2 starting with 2nd recordId
params.StartingRecordId = recordIdServer2
params.MaxRecordsToReturn = 2
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - limit to 2 record starting with server2 recordId: expect server 2 and server 3 only',
(2 == len(results.Servers)
and "TestServer2" == results.Servers[0].ServerName
and "TestServer3" == results.Servers[1].ServerName))
# Limit the number of results to 1 with recordId 0
params.StartingRecordId = 0
params.MaxRecordsToReturn = 1
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - limit to 1 record: expect server 1 only',
(1 == len(results.Servers)
and "TestServer1" == results.Servers[0].ServerName))
# Limit the number of results to 2
params.MaxRecordsToReturn = 2
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - limit to 2 records: expect server 1 and server 2 only',
(2 == len(results.Servers)
and "TestServer1" == results.Servers[0].ServerName
and "TestServer2" == results.Servers[1].ServerName))
# Limit the number of results to 3
params.MaxRecordsToReturn = 3
results = client.uaclient.find_servers_on_network(params)
logger.add_test(
'FindServersOnNetwork test - limit to 3 records: expect 3 servers',
(3 == len(results.Servers)
and "TestServer1" == results.Servers[0].ServerName
and "TestServer2" == results.Servers[1].ServerName
and "TestServer3" == results.Servers[2].ServerName))
# UnRegister all servers
local_register_server2(client, logger, "TestServer1", defaultAddress, [],
False)
local_register_server2(client, logger, "TestServer2", defaultAddress, [],
False)
local_register_server2(client, logger, "TestServer3", defaultAddress, [],
False)
