Abstract: A method, system, and computer program product for handling messages on a message transmission backbone within a distributed data processing system is disclosed. A filter module generates an allowable message types data structure, and stores the allowable message types data structure in a memory. Each entry of the allowable message types data structure includes information for identifying an allowable message type on the basis of one or more message characteristics. A change in a status of a module within a group of loaded programs, which includes multiple data processing software modules, is detected. In response to detecting the change in the status of a module within the group of loaded programs, a corresponding entry within the allowable message types data structure is modified.

Abstract: A method, system, and program product for a new intercommunication architecture in a modular computer system environment. The Information Kit is a publish-and-subscribe software bus applied as an application programming model on an embedded device. Each module of the modular computer system is connected to a virtual node on the information kit and each node operates as a subscriber/listener to the entire software bus. During setup of the module, the module sends a request to the Information Kit. An information kit manager (processor) logs the request in a register. Data (or information) is published by devices connected to other nodes of the Information Kit and the data is placed in a queue for publication to the requesting nodes. The information manager notifies the modules of the availability of the data and initiates a directed broadcast of the data to the modules requesting that particular data.

Abstract: A messaging protocol for information kit subscription objects that enables advanced (or complex) searches to be completed on an information kit rather than a simple wildcard query. A series of logical expressions and conditional expressions are introduce in a dictionary of search terms. A query is created within a subscription object containing an identifier of the data that is being registered for. The query is prepared using the dictionary of terms that are provided in human readable form. When the component issuing the query requires specific criteria appended to the search query, the criteria is provided using the expression lists from the dictionary. More complex searches for information/data within particular context(s) are enabled.

Abstract: An information kit object that enables generic communication patterns among components of a modular computer system environment implementing an Information Kit (advanced publish-and-subscribe software bus). The information kit object contains an identifier of the type of data contained, the actual data, and a function associated with the data and/or object. The function may be a priority value that enables the information kit object to be arranged within a queue of the information kit and issued to requesting nodes in that order. The function may also be an indicator of a level of freshness for the information kit. Object. When an object is no longer at a desired level of freshness a refresh operation is triggered, which causes the publication of another information kit object to replace the previous one. A subscription object is also provided that includes the search query listing the data object of interest to the subscribing node.