- With exponential backoff enabled, a KeepAlive calling `BeginReconnect` could retrigger the timer in a way that a reconnect would never occur.
- Throttle `ISession.BeginPublish` on `BadTooManyOperations` error.
- Add reverse connect option to console client to test reconnect with reverse connect manager.
- null events in session on dispose to suppress spurious events.
- mark `TransferSubscription` service calls obsolete to avoid accidential use by applications.
- for reverse connection testing of session reconnect handler, add options for no security and reverse connect endpoint to console client
- if `DisableMonitoredItemCache` is set, the sequencenumber and publish time are unavailable. Add helpers to NotificationData to get the information in the fast data and event callbacks.
- new fast callback for keep alive messages
- due to the new `MinPublishRequestCount` property publish requests are being sent after reconnect even if no subscription is active
- Improve sample code to show how to dispose the old session after reconnect
Currently the session reconnect requires to create and destroy the object and to lock the operation in the client code.
The refactored version is backward compatible but allows for a single instance to handle reconnects during the lifetime of the client. In addition no more locking is necessary in the client code.
- exponential backoff is enabled by using a constructor `new SessionReconnectHandler( true, 30000);` which would set the maxReconnectPeriod` to 30000ms. The backoff period is doubled after every unsuccessful request.
- a 10% random jitter is added to every timer update.
- The `public virtual int JitteredReconnectPeriod(int reconnectPeriod)` and `public virtual int CheckedReconnectPeriod(int reconnectPeriod, bool exponentialBackoff = false)` can be overloaded to implement custom jitter and backoff implementations.
- A new `ISession.MinPublishRequestCount` property can be set to enforce a minimum number of active publish requests. Default behavior is one publish request per subscription. It can help for low latency high frequency publish intervals.
- A new `PublishSequenceNumbersToAcknoledge` event is implemented which allows to defer ack of sequence numbers until fully processed by the client.
All new methods/properties ar not breaking changes and by default there is no behavior change, all existing code should work and compile aginst the update flawlessly.
- A bugfix in the reconnect handler, when a server changed the application certificate the reconnect ends up in an endless loop, because the `EndpointDescription` is not updated. The fix updates the endpoint from the server if a `BadSecurityChecksFailed` error os returned and then tries to reconnect with a new session.
- Add environment variables as parameter to support docker hosting where command line parameter are not available
- bump some Nuget packages
- only warn on cert validation error on startup, e.g. when the CRL becomes outdated allow to start and print warning.
- Let GetEndpoints return endpoints which match the DNS name used. DNS names must be specified as alternate hostnames in the configuration.
- Fix browse issues mentioned in #1989 by @logicaloud
- improve console browse sample, if `BadNoContinuationPoints` is returned, reschedule the nodes for the next round
Co-authored-by: @logicaloud
Expose an 'ISession' interface as abstraction to ease unit testing.
Breaking changes are kept to minimal impact, but some changes maybe required to use ISession objects instead of Session.
Note: ISessionClientMethods is hand created, not yet by ModelCompiler
Improvements for complex types.
- Support to encode/decode complex type structures with multidimensional arrays.
- Perf improvements for type loader using new NodeCache fetch multiple interfaces.
- DataTypeDictionary validation when dependencies are used.
- interface for complex type resolver, to build custom types in code.
- improvements of console client to demonstrate browse/read of custom values
+++ Breaking changes +++
IDecoder interface change of the `ReadArray` method
- Return type is now `Array` for all types of arrays. Previously the method returned an array for 1-dim and a `Matrix` type for multidimensional arrays. In addition the convention in generated code is to use `Collection` for all 1-dim arrays, and so was built the `BaseComplexType`. The new convention is to expose the native `Array` type from a complex type, in all cases, hence the return type of `ReadArray` was changed to reflect that for a consistent programming model.
- `ReadArray` has a new parameter `systemType` to efficiently read encodeable types. Previously the `Type` of an encodeable was determined by the encodingid and lookup in the type factory, even when the Type is already known by the caller. The 'old' style is still supported.
- `ReadArray` supports to read encodeable type arrays which are directly encoded in structures. These arrays differ from standard encoding of arrays and they are handled when `BuiltInType.Null` is used as parameter.
- set `KeepAliveTimeout` default back to 5s, was unintentionally set to 50s in 368 release
- fix a bug that duplicate subscriptions were created after reconnect when transfer succeeds.
- add a property to enable subscription transfer in reconnect, set `Session.TransferSubscriptionsOnReconnect=true` to enable, IOP issues may not allow to use it with some servers.
- add a `SessionReconnectHandler(true)` constructor to support reconnect abort, if the connection recovers before reconnect timer called. If the new constructor is used, its a breaking change: Needs check of `Session` property in Reconnect handler callback, if aborted `Session==null`.
- Reduce warning log output if server timestamp > client time.
- Add handling when subscriptions can not be transferred, e.g. when false user credentials or no security prevent transfer.
- Improve the reconnect timer handling by using `OperationLimit` in reconnect.
- Add sample for `SessionReconnectHandler` in console client.
- Seperate session sample code from `UAClient`.
- Tested on popular demo servers of various SDK vendors.
- Fix Winforms ref client
- Only an issue if the configuration does not specify the security policy uri for anonymous token
- If the config does not specify the security policy, for anonymous user token the security profile Basic256Sha256 was chosen.
- This setting requires for the client to trust the server certificate if it tries to connect with security None, may cause IOP issues when no security is chosen and encryption is required for the anonymous user token.
- Provide the CTT configuration used for 1.4.9.398: Added tests with arrays except Variant
- Match the Reference server config for CTT run (Console Server was used, others tbd)
- add a few cases in ref server node manager to enable skipped tests
- preset random generators to create deterministic node data
CTT fixes:
- Trigger: fix a regression introduced with the TransferSubscription support, Trigger stopped working, revert change to remove LinkedList in MonitoredItems
- return BadDataEncodingUnsupported creating MonitoredItems
- ensure that MonitoredItem node data reported as required by CTT after initial reading, transfer and SetMonitoring
note: not yet 100% passy, a few uncritical failing tests are still under investigation
Co-authored-by: mrsuciu <Mircea-Adrian.Suciu@softing.com>
- Kestrel server is end of life for .NET Core 2.1, only support for .NET framework and netstandard2.0
- Use FrameworkReference to include ASPNET services for .NET Core 3.x and later
- adjust the code signing for bindings.https
- deprecate complextypes.symbols package
- note: only netcoreapp3.1 and net6.0 frameworks yet support latest kestrel and allow to use MS.Ext.Logging library >=5.x with bindings.https. If netstandard2.0 or net462 is used, the Microsoft.Extensions.Logging library >= 3.x cause a TypeException in Microsoft...HttpHeader because a required class became obsolete in Platform.Extensions.
- support for Microsoft.Extensions.Logger.ILogger in Opc.Ua.Core as the new logging interface
- backward compatible with config and TraceEvents
- new API Utils.SetLogger allows to set ILogger
- updated Console samples to demonstrate ILogger support with Serilog
- support for EventSource logging
- see Docs/Logging.md for more info
-fixes for complex types:
- a structure which contains an enum from namespace 0 can not be created. fixes#1561.
- a structure with multidimensional array may lead to a endless loop in `ComplexTypeSystem.Load`
- a malformed namespace Uri which contains a space character prevents creation of type system.
- select endpoint doesn't pick the right scheme if the default endpoint must be picked
-prep for net472 or greater and net5.0 or greater build, only build #ifdef
* Adds proper TPL usage, decouples dependencies on Console and ClientBase, and uses string interpolation versus String.Format.
* Renames private members to standard naming convention.
- The AcceptAll flag can be used to accept all suppressible errors in one call back
- Behaviour unchanged when only Accept is set, callback is invoked for all errors and all must be approved
* implement transport binding factory
* split https transport into seperate nuget package
* new Opc.Ua.Binding.Https assembly
* Https binding is loaded on demand, if available
* reduce core dependencies to kestrel and others
fixes#600
Martin Regen