After a minor release in July this is again a major release which introduces as the most important feature the first of a set of actuators for monitoring: LoadControlActuator. This actuator implements a classical pattern for fault tolerant functionality which is the Shed Load pattern. The actuator comes with a huge bunch of customization and configuration options, the documentation takes 14 pages of the reference guide. Find it out on page 80. Other fault tolerant patterns like circuit breaker will follow in the next releases.
Some undocumented intermediate releases have been published which contain bug fixes and some smaller functional additions requested by a client. Now, this official release presents one big new functionality: a sensor for controlling HTTP requests on the client side. This is achieved by conducting HTTP requests through an internal proxy. Now it is possible to control both, remote EJB invocations and remote HTTP requests both on client and on server side.
One major change with this release is the different behavior when loading JPA entities with the CibetEntityManager. In previous releases the CibetEntityManager forced that all lazy associations of an entity were loaded and the entity detached from the persistence context. This is convenient for the developer as it is ensured that with ARCHIVE and dual control actuators it is ensured that always the fully loaded entity is serialized and stored. On the other hand this may decrease performance and is not what is expected from an EntityManager. Now the CibetEntityManager loads entities as expected without loading lazy entities and detaching, but now the developer has to ensure that the entity is fully loaded before a ARCHIVE or dual control actuator is applied. If this is not the case, a LazyInitialisationException will be thrown.
besides some bug fixes main new functionality is a sensor for controlling remote EJBs on the client side. This is a precondition for the monitoring actuators planned in the following releases,
an intermediate release which brings an actuator for scheduling business cases. This functionality was requested by a project.
some interesting new features have been implemented: A new sensor controls all sorts of JPA queries. A JMX MBean is installed automatically during startup which allows changing configuration at runtime. New ENVERS actuator makes an integration of Hibernate Envers for auditing of JPA entities. And much more. See the release notes for all changes of this release.
For this release we made major refacturing in the target area of a control event. This could be a JPA entity, a method, an EJB, a URL etc. and are now generalized under the new term resource which is more conform to the theoretical background. A Resource is controlled by sensors and applied actuators have an impact on that resource.
Apart from refacturing two new major features have been implemented:
In this release the internals and some interfaces are streamlined and brought more in line with the theoretical concepts. This includes a refacturing of the Cibet context concept. You could now make use of an application-, session- and request- scoped context. The possibility of registering and applying custom controls in setpoints was still missing, this feature has now been added.
Other important new functionality is the possibility to assign dual control business cases to releasing users and send notifications about dual control events.
Major changes of this release besides several bug fixes and small improvements:
We are proud to introduce two new functionalities besides the usual bug fixes and small improvements on the way. The first is the support for JDBC as a second persistence mechanism next to JPA. A JDBC to JPA mapper allows to use Cibet in a plain JDBC application while a JDBC sensor allows direct controlling of JDBC queries.
The second major improvement is the integration of Apache Shiro as a second security framework next to Spring Security. With Shiro integration many interesting things can be done that are not possible in a stand-alone Shiro appication.
Two new actuators and support for Maven, that are the key points of this release. TWO_MAN_RULE actuator is another dual control actuator that works like FOUR_EYES actuator, but has even stricter requirements (see Two-man rule).
LOCKER actuator allows to make a reservation for a business case or action. A user may for example reserve the release of a dual control event. No other user can execute that release then.
The integration of the Cibet library has become more convenient for Maven projects. Cibet is now hosted in the Maven Central repository. All you need is to add
<dependency> <groupId>com.logitags</groupId> <artifactId>cibet</artifactId> <version>1.1</version> </dependency>
to your pom.xml.
We are proud to announce the release of version 1.0 which is a major milestone that we achieved after a period of thorough testing. This release does not introduce any new functionality but is a maintenance release with the goal to harden the framework and increase its stability. This was achieved by setting up a completely new automated test environment. The details of this test environment can be read in an article here.
Several bugs have been fixed and many small improvements been made.
In this release one major new feature and one major change are implemented. The new feature is a new sensor for http request. With this sensor it is now possible to apply all control logic including dual control principles not only to domain objects and method calls but also to http requests. See the User Guide on how to make use of the http sensor. It is as simple as the other sensors.
The change regards the configuration of setpoints. We came to the decision that hitherto configuration was too complicated and for most business cases too complex. Therefore we decided according to our principle Keep it simple to reduce the flexibility for the benefit of a much higher simplicity. We think that 95% of business cases can now be configured with less than 50% of xml lines than before while for 5% of business cases it could be a little bit more. See as an example the scenario for controlling a domain object and the scenario for controlling a service call
|Read article about how control theory concepts are applied in many frameworks like Spring Security, JMX, JAAS on www.serverside.com!|
There are two major new functionalities coming with the 0.8 release:
The first is the general support of service method control. Up to now, only EJB methods could be set under control. With this release, any public methods of any class can be controlled.
The second new functionality is the integration of Spring Security. Now persistence actions and service calls can be also access controlled with Spring Security. The integration of Cibet and Spring Security gives a lot of advantages and more configuration possibilities as compared to using Spring Security stand-alone.
The changes of this release are listed in detail in the release notes.
The actual release 0.7 has undergone some major refactorings and changes in design. Cibet is now based on fundamentals of control theory. That implies also a thorough renaming of classes and packages. As mentioned on the release notes page the interfaces are still not stable until release 1.0 and can be subject to changes. This release is such a big change. The enhancements are obvious: The concepts become clearer and there are a lot of possibilities to hook in and implement customized functionality. Please see the abstract on concepts of control theory.