Programmable Presence Virtualization
First Claim
1. A method for supporting a presence virtualization query, wherein the method comprises:
- receiving a virtual query from a client, wherein the virtual query is specified in terms of a membership set of one or more members, wherein the membership set comprises a list of presentity uniform resource identifiers (URIs) and a separate transformation function, defined over a set of one or more presence documents of the one or more members in the membership set;
redirecting, via a virtual presence server, the query to a destination virtual presentity URI whose presence state comprises an aggregation of the one or more presence documents of the list of URIs in the membership set and a corresponding query element (QE) object that manages subscriptions for the URI;
adding, via the QE for the destination virtual presentity URI, the client as a watcher for the destination virtual presentity URI; and
applying, via the virtual presence server, transformation logic specified by the watcher client and notifying a corresponding client of a resulting output.
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Abstract
Techniques for supporting a presence virtualization query are provided. The techniques include receiving a virtual query from a client, the virtual query specified in terms of a membership set of members, wherein the membership set comprises a list of presentity uniform resource identifiers (URIs) and a separate transformation function, defined over a set of presence documents of the members in the membership set, redirecting the query to a destination virtual presentity URI whose presence state comprises an aggregation of the presence documents of the list of URIs in the membership set and a corresponding query element (QE) object that manages subscriptions for the URI, adding the client as a watcher for the destination virtual presentity URI, and applying transformation logic specified by the watcher client and notifying a corresponding client of a resulting output.
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Citations
25 Claims
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1. A method for supporting a presence virtualization query, wherein the method comprises:
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receiving a virtual query from a client, wherein the virtual query is specified in terms of a membership set of one or more members, wherein the membership set comprises a list of presentity uniform resource identifiers (URIs) and a separate transformation function, defined over a set of one or more presence documents of the one or more members in the membership set; redirecting, via a virtual presence server, the query to a destination virtual presentity URI whose presence state comprises an aggregation of the one or more presence documents of the list of URIs in the membership set and a corresponding query element (QE) object that manages subscriptions for the URI; adding, via the QE for the destination virtual presentity URI, the client as a watcher for the destination virtual presentity URI; and applying, via the virtual presence server, transformation logic specified by the watcher client and notifying a corresponding client of a resulting output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for a virtual presence server to support presence virtualization queries, the system comprising:
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a virtual presence server (VPS) to provide one or more answers to subscription-style structured virtual presence queries from a plurality of clients, the VPS comprising a table representing a mapping between each unique membership set of one or more presentities, a corresponding virtual presentity uniform resource identifiers (URI) and a query element (QE) responsible for subscriptions to the URI; a set of one or more query elements (QEs) contained in the VPS, each QE associated with a URI and containing a table of a list of one or more clients whose transformations are expressed over an aggregated presence document of the URI and a specific transformation logic pertaining to each client; and a set of one or more presence clients that issue virtual presence queries that are structured to contain a membership set containing a list of one or more presentity URIs, and a separate transformation function defined over a set of presence documents of each member in the membership set.
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13. A computer program product comprising a tangible computer readable recordable storage medium including computer useable program code for supporting a presence virtualization query, the computer program product including:
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computer useable program code for receiving a virtual query from a client, wherein the virtual query is specified in terms of a membership set of one or more members, wherein the membership set comprises a list of presentity uniform resource identifiers (URIs) and a separate transformation function, defined over a set of one or more presence documents of the one or more members in the membership set; computer useable program code for redirecting, via a virtual presence server, the query to a destination virtual presentity URI whose presence state comprises an aggregation of the one or more presence documents of the list of URIs in the membership set and a corresponding query element (QE) object that manages subscriptions for the URI; computer useable program code for adding, via the QE for the destination virtual presentity URI, the client as a watcher for the destination virtual presentity URI; and computer useable program code for applying, via the virtual presence server, transformation logic specified by the watcher client and notifying a corresponding client of a resulting output. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A system for supporting a presence virtualization query comprising:
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a memory; and at least one processor coupled to the memory and operative to; receive a virtual query from a client, wherein the virtual query is specified in terms of a membership set of one or more members, wherein the membership set comprises a list of presentity uniform resource identifiers (URIs) and a separate transformation function, defined over a set of one or more presence documents of the one or more members in the membership set; redirect, via a virtual presence server, the query to a destination virtual presentity URI whose presence state comprises an aggregation of the one or more presence documents of the list of URIs in the membership set and a corresponding query element (QE) object that manages subscriptions for the URI; add, via the QE for the destination virtual presentity URI, the client as a watcher for the destination virtual presentity URI; and apply, via the virtual presence server, transformation logic specified by the watcher client and notifying a corresponding client of a resulting output. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification