Frame data is received from an agent instrumented on a software component, the frame data describing a particular request from the software component to a database access component intercepted at the agent. The particular request corresponds to a transaction involving a database and the software com
Frame data is received from an agent instrumented on a software component, the frame data describing a particular request from the software component to a database access component intercepted at the agent. The particular request corresponds to a transaction involving a database and the software component can interface with the database using the database access component. A service mode is identified that corresponds to the transaction and virtualization data is generated based on the service model and the particular request. The virtualization data is sent to the agent that describes a virtualized response to be provided by the agent to the software component as a response to the particular request.
대표청구항▼
1. A method comprising: identifying a first request from a software component to a database access component, wherein the first request is passed from the software component to the database access component through an agent instrumented on the software component, and the software component interface
1. A method comprising: identifying a first request from a software component to a database access component, wherein the first request is passed from the software component to the database access component through an agent instrumented on the software component, and the software component interfaces with the database using the database access component;determining that the database is to be virtualized in a virtualization mode;intercepting, at the agent, during the virtualization mode, a second request from the software component to the database access component, wherein the second request corresponds to a transaction involving the database, and interception of the second request causes handling of the second request to be redirected from the database access component to a virtual service implemented, at least in part, using the agent and a virtualization system;sending frame data from the agent to the virtualization system describing the second request;receiving virtualization data, at the agent, describing a virtualized response to provide to the software component responsive to the second request, wherein the virtualized response simulates a response of the database access component; andproviding, through the agent, the virtualized response to the software component in lieu of the response from the database access component. 2. The method of claim 1, wherein the virtualization data comprises the virtualized response. 3. The method of claim 1, further comprising: identifying a session corresponding to the particular request, wherein the frame data comprises an identification of the session and the virtualization data is based on the identification of the session. 4. The method of claim 1, wherein the particular request comprises a database query statement, the method further comprising identifying a particular connection with the database corresponding to the particular request. 5. The method of claim 4, wherein identifying that the particular connection corresponds to the particular request comprises identifying from session data that the particular request and the particular connection correspond to a particular session involving the database. 6. The method of claim 5, wherein the particular request comprises the session data. 7. The method of claim 5, wherein the session data is identified from data maintained by the software component. 8. The method of claim 4, further comprising intercepting, at the agent, a database connection object corresponding to the particular connection and sent in response to a request of the software component to obtain a connection with the database. 9. The method of claim 1, wherein the virtualized response is to be provided in lieu of a response from the database access component to the particular request and is to model responses of the database interfacing with the software component through the database access component. 10. The method of claim 1, wherein the particular request comprises a data retrieval request and the virtualized response is to model a portion of query results returned to the software component by the database access component. 11. The method of claim 10, wherein the query results comprise one of scalar-based results and pointer-based results. 12. The method of claim 1, wherein the particular request comprises a request to obtain a connection with the database and the virtualized response is to model a connection object returned for a connection with the database. 13. The method of claim 1, wherein the particular request comprises a query statement and the virtualized response is to model a query result set returned from the database based on the query statement. 14. The method of claim 1, wherein the database access component comprises a database API from a group comprising a Java Database Connectivity (JDBC) driver, an ADO.NET driver, an Object Linking and Embedding Database (OLDEDB) driver, and an Open Database Connectivity (ODBC) driver. 15. A method comprising: receiving frame data from an agent instrumented on a software component, the frame data describing a particular request from the software component to a database access component intercepted at the agent during a virtualization mode, wherein the particular request corresponds to a transaction involving a database, the software component interfaces with the database using the database access component, and the particular request is intercepted by the agent to prevent the particular request from being handled by the database access component during the virtualization mode, wherein the agent is to allow requests to be handled by the database access component when in a default operating mode;identifying a particular one of a plurality of service models as corresponding to the transaction;generating virtualization data based on the service model and the particular request; andsending the virtualization data to the agent, wherein the virtualization data describes a virtualized response to be provided by the agent to the software component as a response to the particular request, wherein the virtualized response simulates a response of the database access component and is sent in lieu of an actual response by the database access component to the particular request. 16. The method of claim 15, further comprising determining a type of the transaction from the frame data, wherein the service model is identified based on the type. 17. The method of claim 15, further comprising determining that the particular request corresponds to a set of stateful transactions modeled by a conversation model, wherein the virtualization data is based on the conversation model. 18. The method of claim 17, further comprising identifying from the frame data that the particular request corresponds to a particular session involving the database, wherein determining that the particular request corresponds to the set of stateful transactions is based on identifying that the particular response corresponds to the particular session. 19. The method of claim 15, further comprising identifying from the frame data that the particular request corresponds to a particular connection with the database. 20. The method of claim 19, wherein the frame data comprises first frame data and the virtualization data comprises first virtualization data, the method further comprising: receiving second frame data describing a request of the software component to obtain the particular connection; andgenerating second virtualization data based on the service model and the particular request; andsending the second virtualization data to the agent, wherein the second virtualization data describes a virtual connection object to be provided by the agent to the software component as a response to the request to obtain the particular connection. 21. The method of claim 15, wherein the particular request comprises a data retrieval request and the virtualized response is to model a portion of query results returned to the software component by the database access component. 22. The method of claim 15, wherein the particular request comprises a request to obtain a connection with the database and the virtualized response is to model a connection object returned for a connection with the database. 23. The method of claim 15, wherein the particular request comprises a query statement and the virtualized response is to model a query result set returned from the database based on the query statement. 24. The method of claim 15, further comprising: determining that the database is unavailable and is to be virtualized; andcausing the virtualization mode to be entered based on unavailability of the database. 25. The method of claim 15, further comprising receiving a request to virtualize the database. 26. A non-transitory computer readable medium having program instructions stored therein, wherein the program instructions are executable by a computer system to perform operations comprising: identifying a first request from a software component to a database access component, wherein the first request is passed from the software component to the database access component through an agent instrumented on the software component, and the software component interfaces with the database using the database access component;determining that the database is to be virtualized in a virtualization mode;intercepting, at the agent, a second request from the software component to the database access component, wherein the second request corresponds to a transaction involving the database, and interception of the second request by the agent prevents the second request from being handled by the database access component;sending frame data from the agent to a virtualization system describing the second request;receiving virtualization data, at the agent, describing a virtualized response to provide to the software component responsive to the second request, wherein the virtualized response simulates a response of the database access component; andproviding, through the agent, the virtualized response to the software component in lieu of the response from the database access component. 27. A non-transitory computer readable medium having program instructions stored therein, wherein the program instructions are executable by a computer system to perform operations comprising: receiving frame data from an agent instrumented on a software component, the frame data describing a particular request from the software component to a database access component intercepted at the agent during a virtualization mode, wherein the particular request corresponds to a transaction involving a database, the software component interfaces with the database using the database access component, and the particular request is intercepted by the agent to prevent the particular request from being handled by the database access component during the virtualization mode, wherein the agent is to allow requests to be handled by the database access component when in a default operating mode;identifying a particular one of a plurality of service models as corresponding to the transaction; andsending virtualization data to the agent, wherein the virtualization data describes a virtualized response to be provided by the agent to the software component as a response to the particular request, wherein the virtualized response simulates a response of the database access component and is sent in lieu of an actual response by the database access component to the particular request. 28. A system comprising: a processor device;a memory element; anda virtualization system to: receive frame data from an agent instrumented on a software component, the frame data describing a particular request from the software component to a database access component intercepted at the agent during a virtualization mode, wherein the particular request corresponds to a transaction involving a database, the software component interfaces with the database using the database access component, and the particular request is intercepted by the agent to prevent the particular request from being handled by the database access component during the virtualization mode, wherein the agent is to allow requests to be handled by the database access component when in a default operating mode;identify a particular one of a plurality of service models as corresponding to the transaction;generate virtualization data based on the service model and the particular request; andsend the virtualization data to the agent, wherein the virtualization data describes a virtualized response to be provided by the agent to the software component as a response to the particular request, wherein the virtualized response simulates a response of the database access component and is sent in lieu of an actual response by the database access component to the particular request. 29. The system of claim 28, wherein the virtualization system is further to generate the service model based on frames received from agents instrumented on the software component describing transactions involving the database.
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