摘要:
A computer program product includes a storage medium with program code configured to maintain descriptions of a plurality of information technology resources in a computer-readable storage medium. The program code is configured to maintain a plurality of evaluation strategies. Responsive to detecting a command to change a first property of the set of properties of a first information technology resource of the plurality of information technology resources, the program code is configured to determine that a first of the evaluation strategies associates at least one of the plurality of rules with a form of the change to the first property of the first information technology resource. Also, responsive to detecting the command, the program code is configured to evaluate the at least one of the plurality of rules and performs the operation of the at least one rule.
摘要:
Orders are processed within an Order Processing Environment which includes an Order Processing Container, Relationship Registry, and Factory Registry. The Order Processing Environment is extended by a Reference Resolvement Function Component. The RRFC provides the basic functionality for resolving References defined in the Order Document at runtime and make the referenced data available as a usual input parameter for the resources involved in the Order Processing. Each Task in the Order may contain Resource Property References and Resource Property Relationship References which are pointers to properties of resources. These references are resolved by the RRFC during the Order Processing before the Order Document is delegated from one resource to the next. When resolving a Reference, the value of the referenced Resource Property is determined and the Reference is replaced by this value so that it can be used by the resource having it defined in its Task section as a usual input parameter. Hence, by using References, resources are able to get access to the properties of other resources that participate in the Order Processing or are contained in the Resource Topology tree and use them as an input parameter for executing their own Task without having to know where the data is gathered from.
摘要:
A method and system for automated error handling in system management flows by enhancing workflow engines by an error handling component and by adding a supportive error handling layer to invoked system management tasks which serves as the counterpart to the workflow engine's error handling component. The additional functionality of the task-provided error handling layer is accessible for the workflow engine via extended Web services interfaces. The workflow engine's error handling component and the task-provided error handling layer allow for the definition of a standard protocol between the workflow engine and invoked tasks for automated error handling. Furthermore, an interface and method of communication between the enhanced workflow engine and an external error resolving device (such as an expert system) is defined with the purpose of using the external error resolving device for automatic error recovery. The internal or external error resolving device is capable of performing corrective actions on the managed IT infrastructure using mechanisms outside the scope of this invention. The benefit of the presented architecture is that the complexity concerning error handling is completely removed from system management flow definitions, and the designer of a system management flow can concentrate on the logical structure of the flow (e.g. the correct sequence of tasks).
摘要:
A method and system for automatically cloning IT resource structure in stateful web services environments by employing a new approach for configuration management. The present new approach models the configurational state of each resource as a stateful web service. Configuration data are provided by this service's resource properties. Relationships between configurations of different resources are modeled as “stateful web services relationships” between web service instances. These relationships can be navigated, which allows exploring the configuration of a whole system in a standards-based way. Additionally a new web service interface is provided by the stateful web service encapsulating the resource. This interface provides two new operations: “getConfiguration” allows an exploiter to take a snapshot of a resource's and related resources' configurational state and “setConfiguration” allows for setting the configurational state of a resource to a previously saved state. An invocation of “getConfiguration” results in the creation of a new stateful web service instance that stores the configurational state of each resource. This new web service interface is implemented on a per-resource type basis. Any back-end technology may be used to implement this new web service interface.
摘要:
An order processing system including an order processing container, a factory registry, a relationship registry, and synchronization function component. The order processing system can handle orders, which are build plans including a set of tasks. The tasks can specify programmatic actions which may include creation, deletion, and modification of resources and resource topologies. The order processing container can be central engine that programmatically drives order processing actions. The factory registry can support a creation and deletion of resource instances in a resource topology defined by at least one order. The relationship registry can maintain relationships among resources. The synchronization function component can permit transparent usage of shared resources in accordance with shared usage resource topology parameters specified within processed orders.
摘要:
The present invention relates to distributed networking, and in particularly to a message-based networking environment. More particularly, it relates to business applications (110, 112, 114), which access the network via some middleware (270) within a predetermined load schedule.In order to alleviate the disadvantages of prior art it is proposed to perform, a method with the following sequence of steps: a) monitoring, metering the current workload, b) storing metered workload data in a first appropriate data store (282), c) store state information data about the plurality of currently used instances in a second appropriate data store (242, 244, 246), c) analysing both, said stored, metered workload data and said state information for compliance with a predetermined quality-of-service policy, d) adapting the number of instances (222, 224, 226) usable for satisfying the workload to the workload needs as required by said predetermined quality-of-service policy, e) wherein meta data of newly created instances are managed in a plurality of message stores (242, 244, 246), the data contents of which are frequently synchronized in order to decouple the plurality of client applications (110, 112, 114) from bindings fixed during their operation to particular service instances (222, 224, 226).
摘要:
Media Distribution within the Internet is done with the help of Application-Servers, Content-Servers and distributed Edge-Servers where the clients are connected to Media Distribution Services. A computer system is provided comprising client 1, having a Web browser with a media player 2, Web application server 3, content server, edge servers ES1 to ES4 and media request broker 11. After the client 1 has selected a media for streaming the media request broker 11 makes a determination concerning an appropriate edge server to perform the streaming operation. This determination is made based on an extension of the client's http request made by the edge server and passed from the application server to the media request broker.
摘要:
Media Distribution within the Internet is done with the help of Application-Servers, Content-Servers and distributed Edge Servers where the clients are connected to Media Distribution Services. A computer system is provided comprising a client having a Web browser with a media player, a Web Application Server, content Edge Servers ES1 to ES4 and a Media Request Broker. After the client has selected a media for streaming, the Media Request Broker makes a determination concerning an appropriate Edge Server to perform the streaming operation. This determination is made based on an extension of the client's http request made by the Edge Server and passed from the Application Server to the Media Request Broker.
摘要:
The present invention describes a new system and method for modeling and dynamically deploying services into a distributed networking architecture, especially in a service-oriented architecture. The service container being part of distributed networking architecture exposes its functionality as services. It provides a registration service for deploying service descriptions. Having created a new service description in any declarative description language (i.e. a description of a (stateful) service e.g. a stateful Web service), the description provider invokes the registration service at the service container that allows to register (i.e. deploy) that new service description during runtime without restarting service container. The service container is responsible to analyze and check the submitted new service description for validity, to store the service description and to make it available for interested services consumers for instantiation. If a new service has been successfully registered, a new service interface for accessing that new service is automatically created by the service container. Interested services consumers may query the hosting environment for the available services being hosted and to subsequently instantiate a new service. A service consumer may then invoke any exposed service operation on a given service instance which generally follows a request response pattern.
摘要:
An order processing system can include an order processing container, a factory registry, a relationship registry, and synchronization function component. The order processing system can handle orders, which are build plans including a set of tasks. The tasks can specify programmatic actions which may include creation, deletion, and modification of resources and resource topologies. The order processing container can be central engine that programmatically drives order processing actions. The factory registry can support a creation and deletion of resource instances in a resource topology defined by at least one order. The relationship registry can maintain relationships among resources. The synchronization function component can permit transparent usage of shared resources in accordance with shared usage resource topology parameters specified within processed orders.