Prosys OPC UA Java SDK 2.2.0

Client side reconnection procedure has also been improved and it should now work more reliably with subscription recovery.

The release contains several interface changes, so it may require minor modifications to the applications using the SDK as well.

OPC Foundation Java Stack changes

• Build 1.02.337.4
• Changed: Security framework reworked. Again, enables usage of Bouncy Castle natively, without JCE, in practice enabling 256 bit security witout installing the JCE Unlimited Strength Jurisdiction Policy Files. See README.txt for details
• Bouncy Castle libraries updated to version 1.52
• Spongy Castle libraries updated to version 1.52
• Support for HTTP Core version 4.3 and 4.4 added (but due to some issues encountered with the latest libraries, 4.2 kept as the default version provided with the SDK)
• Interoperability of Basic256Sha256 and Structure encoding towards other stacks has been improved
• Several minor fixes included

Changes to both SDK Client and Server

• New: interface UaValueNode; common base type for UaVariable & UaVariableType
• New: UaAddress.validate()
• New: PkiFileBasedCertificateValidator.refresh()
• Fixed: PkiFileBasedCertificateValidator.clear(boolean removeFiles) always removed files
• Changed: UaMethod.getInputArguments & getOutputArguments to return an empty array instead of null, when the value is null
• Changed: UaAddress internal parsing is based on custom parser instead of URI, providing more complete validation.
• Changed: UaAddress will use the default protocol (opc.tcp) and port (4840/4843) if none is provided in the URI string
• Changed: UaAddress.getServerName() and UaClient.getServerName() does not contain the '/' prefix any more
• New: ApplicationIdentity will now replace 'localhost' in ApplicationName with the actual hostname, similar to what is done for ApplicationUri
• Fixed: ModelParser can now read the value field for custom Structure types from XML files - although they cannot be decoded and will be kept as ExtensionObject

Changes to SDK Client

• INTERFACE CHANGE: New method, SubscriptionAliveListener.onAfterCreate()
• INTERFACE CHANGE: Return type changed, UaClient.callAsync returns AsyncResult instead of AsyncResult (see also the respective codegen change)
• New: SubscriptionAliveAdapter
• New: SubscriptionNotificationAdapter
• New: UaClient.historyReadAsync & historyUpdateAsync
• New: UaClient.set/isValidateDiscoveredEndpoints() to enable disabling the enpoint verification between GetEndpoints and CreateSession (a problem sometimes with some servers)
• Changed: UaClient.PublishRequestTimeout is now 120000 (2 minutes) by default
• Fixed: UaClient.reconnect() will now properly call Republish to the subscriptions before starting to handle other publish responses and recreates the subscriptions if they have timed out in the server
• Fixed: NullPointerException in Subscription notification data handling at some "unusual" situations
• Fixed: Keep alive messages were still acknowledged for some servers, although it was supposed to be fixed in the previous release.

Changes to SDK Server

• INTERFACE CHANGES: NodeManager.getVariableType(), IoManager.readValue(), IoManager.writeValue(), IoManagerListener.onReadValue(), IoManagerListener.onWriteValue(): type of variable parameter changed to UaValueNode (from UaVariable)
• Fixed: IoManager.readValue was not called for VariableType nodes (fixed with the above restructuring)
• New: PublishRequest timeouts are now handled

Changes to Sample applications

• SampleConsoleClient prompting for connection URI, if no command line argument is given, is clarified
• ApplicationName of SampleConsoleServer & SampleConsoleClient now includes the computer name (defined with '@localhost' in the source)

Code generator

• New: The codegen will now generate Async versions of all methods.
• New: The codegen generates equals() & hashCode() for Structure types