Abstract: An example method of submitting a federated query to one or more data sources belonging to a federation includes splitting a zone into a plurality of zone subsets. The zone includes a plurality of data sources belonging to a federation. The plurality of zone subsets has disjoint sets of data sources belonging to the federation. The method also includes receiving a federated query from a client. The federated query includes a plurality of source queries. Each source query of the plurality of source queries is specific to an autonomous data source belonging to the federation. The method further includes determining the client's assigned zone subset of the plurality of zone subsets. The method also includes submitting the federated query to the client's assigned zone subset. The plurality of source queries is submitted to one or more data sources in the zone subset to which the client is assigned.

Abstract: Systems and methods are disclosed for categorizing a user. An example method includes marking one or more graphical user interface (GUI) features of an application. The method also includes monitoring a user's usage of the one or more marked GUI features of the application. The method further includes generating one or more user-specific ontologies for the user in accordance with the user's monitored usage. The method also includes comparing the one or more user-specific ontologies with a plurality of defined ontologies. Each defined ontology corresponds to a category of a plurality of categories. The method further includes categorizing the user in accordance with the comparison of the one or more user-specific ontologies and the plurality of defined ontologies.

Abstract: A system and method of collaborative processing of service requests includes receiving a service request at an application server, beginning execution of a proxy member function of a proxy class, and determining whether a movable member function in a movable class is to be executed at a client. When the movable member function is to be executed at the client, the method further includes creating a partial response including code for the movable class and information for invoking the movable member function and transmitting the partial response to the client fore execution of the movable member function. When the movable member function is not to be executed at the client, the method further includes executing the movable member function in the application server and returning a result of the movable member function as a result of the proxy member function. The proxy member function replaces the movable member function.

Abstract: A system and method of flexible holding storage during messaging includes determining one or more properties of a message, the message to be stored in a holding storage area of a messaging system, determining status of one or more candidate holding storage devices, determining one or more storage selection rules, adjusting the one or more storage selection rules based on information associated with the status of the one or more candidate holding storage devices, and selecting a holding storage device for the message from the candidate holding storage devices based on the adjusted storage selection rules and information associated with the properties of the message. The one or more storage selection rules express preferences among the one or more candidate holding storage devices. In some examples, the system and method further include sending the message to the selected holding storage device.

Abstract: A method and system for processing a request is provided. An example system includes a security module that authenticates a request from a client. The system also includes a Web service that determines whether the set of operations includes an input/output (I/O) operation and determines whether a result of the authentication has been determined. While the request is pending authentication, the Web service may initiate processing of the request and may ensure that no I/O operations are performed within the processing of the request until a request of the authentication has been determined.

Abstract: Methods, systems, and computer program products are included for integrating software components. Source code corresponding to the software components is parsed to identify method calls. Method contracts, which contain identifying information corresponding to the method calls, are determined. The method contracts are used to query a dependency data store to identify dependencies that correspond to the method calls. Dependencies that are determined for a component are compared with dependencies for another component in order to identify dependencies that may be used to build the components together, and also to identify conflicting dependencies.

Abstract: An example method of loading data from a database includes receiving, at a cache node, a current query and a data chain that includes a sequence of ordered queries. The method also includes determining whether a hash of the current query matches a hash of an expected query in the data chain. The method further includes retrieving a result set of the current query from a local cache in response to determining that the hash of the current query matches the hash of the expected query. The method also includes sending the result set of the current query to a client.

Abstract: A method for using a retain block in application code executing on a virtual machine includes identifying an instruction in application code, the instruction pertaining to an object, determining the instruction is part of a retain block, prior to executing the instruction, determining whether the instruction is to cause the object to be modified, and when the instruction is to cause the object to be modified, storing data indicating a first state of the object in a retain block store and causing the first state of the object to be modified using a second state. Also, the method includes in response to an error occurring during an execution of the instruction, returning the object from the second state to the first state using the stored data.

Abstract: Methods, systems, and computer program products are included to provide a universal database driver, into which one or more driver implementations may be loaded. The universal database driver communicates with one or more databases using the appropriate driver implementation for each database. A driver manager is provided that requests driver implementations corresponding to the databases, and loads the driver implementations into the universal database driver.

Abstract: An example method for reducing data communications includes receiving, at a data hub, a first set of messages from a first device. Each message of the first set includes a value. The method also includes sending one or more messages of the first set to one or more devices. The method further includes receiving a second set of messages from a second device. Each message of the second set indicates whether a state change occurred in the second device for one or more values included in the first set. The method also includes computing a value interval based on the one or more values associated with the first set. Values within the value interval were indicated in the second set as causing a state change in the second device. The method further includes configuring the first device to transmit messages for values within the value interval.

Abstract: An example method for processing a batch job that includes a plurality of sequentially ordered tasks includes obtaining a message that includes inputs of a plurality of tasks included in a batch job. The plurality of tasks includes a first task that is sequentially ordered before a second task. The method also includes assigning tasks of the plurality of tasks to different computing nodes. The first task is assigned to a first computing node associated with a first public key, and the second task is assigned to a second computing node associated with a second public key.

Abstract: An example system for distributing a workload of an application includes a class identifier that identifies a remotely instantiable class in an instruction. Execution of the instruction includes processing a workload. The example system also includes a distributor that selects a remote node to process a portion of the workload, sends a message to the selected remote node to cause (i) the selected remote node to instantiate the remotely instantiable class and (ii) the selected remote node to process the portion of the workload by invoking a method of the instantiated class, and receives a result of the processed portion of the workload.

Abstract: A system and method of flexible holding storage during messaging includes determining one or more properties of a message, the message to be stored in a holding storage area of a messaging system, determining status of one or more candidate holding storage devices, determining one or more storage selection rules, adjusting the one or more storage selection rules based on information associated with the status of the one or more candidate holding storage devices, and selecting a holding storage device for the message from the candidate holding storage devices based on the adjusted storage selection rules and information associated with the properties of the message. The one or more storage selection rules express preferences among the one or more candidate holding storage devices. In some examples, the system and method further include sending the message to the selected holding storage device.

Abstract: Systems and methods are disclosed for processing messages using a dynamic messaging bus. An example system includes a plurality of services residing in a dynamic messaging bus including a plurality of sub-buses. Each service is assigned to a sub-bus of the plurality of sub-buses. The example system also includes a performance monitoring module that monitors a performance of one or more services executing on a sub-bus to which the respective one or more services is assigned. A first service is assigned to a first sub-bus and a second service is assigned to a second sub-bus. The example system further includes a swapping module that determines, based on the monitored performances of the first and second services, whether to swap the assignments of the first and second services such that the first service is assigned to the second sub-bus and the second service is assigned to the first sub-bus.

Abstract: A system and method of assembly and use of integration applications includes receiving a first request for services from a first client, the first request for services includes a first custom services header including one or more service descriptors, parsing the first custom services header to extract each of the service descriptors, determining a service corresponding to each of the service descriptors, inserting a request for the service into an integration application, deploying the integration application to an application server, adding a first entry to an application list, the first entry corresponding to the integration application, forwarding the first request for services to the integration application, receiving a response from the integration application, and returning the response to the first client.

Abstract: Methods, systems, and computer program products are included to provide a universal database driver, into which one or more driver implementations may be loaded. The universal database driver communicates with one or more databases using the appropriate driver implementation for each database. A driver manager is provided that requests driver implementations corresponding to the databases, and loads the driver implementations into the universal database driver.

Abstract: Providing messages for Java message service (JMS) is disclosed. A described method includes determining timestamp information associated with a first Java™ message service (JMS) message. The timestamp information represents a time when the JMS message is either generated or received by a processing device. The method also includes determining destination information associated with the JMS message. The method further includes converting the JMS message into a first key-value data pair having a key data and a value data. The key data includes the timestamp information and the value data includes the destination information of the first JMS message.

Abstract: Various examples are directed to systems and methods for managing a database to include data from an external data source. A database engine may receive a request to add a reference column to a database described by a database schema. The request may comprise a location parameter describing a location of the external data source comprising data for populating the reference column and a data identifying parameter describing data at the external data source for populating the reference column. The database engine may modify the database schema to include the reference column, send a query to the external data source to obtain at least one data item for populating the reference column, and populate the reference column with the at least one data item.

Abstract: Various examples are directed to systems and methods for managing a database organized according to a schema. The database may comprise a database file corresponding to a table described by the schema. The database file may comprise a first row entry corresponding to a first row of the table. The first row entry may comprise at least one data item. A command may be received. The command may modify a first data item in the first row of the table. An indication of the modified value for the first data item may be written to a change location at the first file. The first entry may be modified to include a pointer to the indication of the modified value for the first data item.

Abstract: Systems and methods are provided for data hub architecture to provide actionable data from remote sensor feeds. An exemplary method includes receiving, by a master hub of a plurality of data hubs, a request to access at least one first sensor in a first location and at least one second sensor in a second location from a data client, wherein the master hub is closest to the data client of the plurality of data hubs on a network, determining a first data hub that is closest to the at least one first sensor on the network, and determining a second data hub that is closest to the at least one second sensor on the network. The method further includes querying the first data hub and the second data hub for data and communicating the data to the data client.