EVENT PROCESSING WITH XML QUERY BASED ON REUSABLE XML QUERY TEMPLATE

• US 20150134698A1
• Filed: 01/22/2015
• Published: 05/14/2015
• Est. Priority Date: 10/21/2009
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Inventors: Schindlauer, Roman, Sezgin, Beysim, Grabs, Torsten
• Granted Patent: US 9,348,868 B2
• Time in Patent Office: Days
• US Class Current: 707/779
• CPC Class Codes: G06F 16/2455 Query execution
• CPC Class Codes: G06F 16/835 Query processing

Abstract

Methods, systems, and computer-readable media are disclosed for event processing with a query based on a reusable XML query template. A particular method includes receiving a plurality of events from a source and generating a plurality of event objects based on the plurality of events. A query represented by an XML file based on a reusable XML query template is executed with respect to the plurality of event objects to produce a plurality of result objects. Each result object is produced based on an application of at least one operator of the query. A plurality of results is generated based on the plurality of result objects, and the plurality of results is transmitted to a sink.

Claims

1-20. -20. (canceled)

21. A system comprising:

a memory; and

a processor connected with the memory, the processor including a query engine configured to execute queries with respect to event objects to produce result objects, wherein a query is represented by an extensible markup language (XML) file that is based on a reusable XML query template that is bindable to a plurality of input adapters and a plurality of output adapters, the processor executing;

binding the reusable XML query template to a first input adapter for a source to input data for execution of a first query, and

binding the reusable XML query template to a second input adapter, different from the first input adapter, for another source to input data for execution of a second query, and

executing the first query and the second query.

22. The system according to claim 21, wherein the binding used for execution of the first query further comprises binding the reusable XML query template to a first output adapter for a sink to output results of the first query.

23. The system according to claim 21, wherein the binding used for execution of the second query further comprises binding the reusable XML query template to a second output adapter, different from the first output adapter, for another sink to output results of the second query.

24. The system according to claim 21, wherein the binding used for execution of the first query further comprises binding the reusable XML query template to a first output adapter for a sink to output results of the first query, and the binding used for execution of the second query further comprises binding the reusable XML query template to a second output adapter, different from the first output adapter, for another sink to output results of the second query.

25. The system according to claim 21, wherein both the first input adapter and the second input adapter are used to produce identically typed event objects in accordance with a type specification of the reusable XML query template.

26. The system according to claim 22, wherein the first input adapter transmits an event object to the query engine via an input stream and the first output adapter receives a result object from the query engine via an output stream.

27. The system according to claim 21, wherein the XML file includes a directed graph of the at least one operator.

28. The system according to claim 27, wherein the directed graph includes a projection operator, a windowing operator, an aggregation operator, a grouping operator, a join operator, a selection operator, or any combination thereof.

29. The system according to claim 21, wherein the XML file representing the query is generated based on a language integrated query (LINQ) language, a query in a .NET programming language other than LINQ, a complex event detection and response (CEDR) algebra query, or any combination thereof.

30. The system according to claim 21, wherein the system is integrated into an embedded dynamically linked library (DLL), an executable file, an operating system service, or a server farm.

31. The system according to claim 21, wherein at least one of the first input adapter, the second input adapter and the query engine are integrated into a complex event processing (CEP) system.

32. The system according to claim 22, wherein at least one of the first input adapter, the second input adapter, the query engine, the first output adapter, and the second output adapter are integrated into a complex event processing (CEP) system.

33. The system according to claim 22, wherein the input adapter generates event objects that match an input type specification of the reusable XML query template and wherein the first output adapter accepts result objects that match an output type specification of the reusable XML query template.

34. A system comprising:

a memory; and

a processor connected with the memory, the processor including a query engine configured to execute queries with respect to event objects to produce result objects, wherein a query is represented by an extensible markup language (XML) file that is based on a reusable XML query template that is bindable to a plurality of input adapters and a plurality of output adapters, the processor executing;

binding the reusable XML query template to a first output adapter for a sink to output results of execution of a first query, and

binding the reusable XML query template to a second output adapter, different from the first output adapter, for another sink to output results of execute of a second query, and

executing the first query and the second query.

35. The system according to claim 34, wherein the binding used for execution of the first query further comprises binding the reusable XML query template to a first input adapter for a source to input data for execution of the first query.

36. The system according to claim 34, wherein the binding used for execution of the second query further comprises binding the reusable XML query template to a second input adapter, different from the first input adapter, for another source to input data for execution of the second query.

37. The system according to claim 34, wherein the binding used for execution of the first query further comprises binding the reusable XML query template to a first input adapter for a source to input data for execution of the first query, and the binding used for execution of the second query further comprises binding the reusable XML query template to a second input adapter, different from the first input adapter, for a source to input data for execution of the second query.

38. The system according to claim 34, wherein both the first input adapter and the second input adapter are used to produce identically typed event objects in accordance with a type specification of the reusable XML query template.

39. The system according to claim 34, wherein the reusable XML query template is integrated into a complex event processing (CEP) system.

40. A computer-implemented method comprising:

binding a reusable XML query template to a first input adapter for a source and a first output adapter for a sink to execute a first query; and

binding the reusable XML query template to a second input adapter for another source and a second output adapter for another sink to execute a second query; and

executing the first query and the second query,

wherein a query engine is configured to execute queries with respect to event objects to produce result objects, wherein a query is represented by an extensible markup language (XML) file that is based on the reusable XML query template that is bindable to a plurality of input adapters and a plurality of output adapters.