Dynamic communication between script and execution layers

• US 9,104,451 B2
• Filed: 11/26/2012
• Issued: 08/11/2015
• Est. Priority Date: 11/26/2012
• Status: Active Grant

• Current Assignee: Oracle International Corporation (Oracle Corporation)
• Original Assignee: Oracle International Corporation (Oracle Corporation)
• Inventors: Subramanya, Ramya, Martin, Madhu, Mathew, Stephen
• Primary Examiner(s): Bullock, Jr., Lewis A
• Assistant Examiner(s): Ashley, Bruce S
• Application Number:
  US13/685,360
• Publication Number:
  US 20140149978A1
• Time in Patent Office: 988 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06F 9/45512 Command shells
• CPC Class Codes: G06F 9/4552 Involving translation to a different instruction set architecture, e.g. just-in-time translation in a JVM

Abstract

A method of dynamically communicating a parameter during runtime may include providing a script to a command-line scripting module that uses the parameter, where the parameter is to be provided during runtime by a user and the script is configured to generate an exception including an identifier associated with the parameter. The method may also include generating byte code based on the script, executing the byte code on a virtual machine until the exception is generated, passing the exception to the command-line scripting module, causing, by the command-line scripting module, receiving a parameter value from the user through an input device, passing the parameter value to the virtual machine, and continuing execution of the byte code on the virtual machine.

Claims

1. A method of dynamically communicating a parameter during runtime between a command-line scripting module and a virtual machine, the method comprising:

providing a script to a command-line scripting module, wherein;

the script executes a function that requires the parameter; and

the script does not provide the parameter to the function;

generating byte code for the function, wherein try-catch code is automatically inserted around code that uses the parameter in the function;

executing the byte code on a virtual machine until an exception is generated because the parameter was not provided to the function, wherein the function is unable to request the parameter as a user input during runtime;

passing the exception from the virtual machine to the command-line scripting module;

extracting a parameter identifier from the exception at the command-line scripting module;

generating output using the parameter identifier at the command-line scripting module, wherein the output requests the parameter;

receiving input at the command-line scripting module that includes the parameter;

re-executing the byte code with the parameter.

2. The method of claim 1 wherein the script comprises JYTHON code, and wherein the byte code comprises JAVA byte code.

3. The method of claim 1 wherein the byte code is generated using a specialized compiler to recognize code segments requesting the parameter in the script.

4. The method of claim 1 wherein the command-line scripting module operates on a first computer system, and wherein the virtual machine operates on a second computer system, wherein the first computer system is geographically remote from the second computer system.

5. The method of claim 1 wherein the parameter comprises a password.

6. The method of claim 1 wherein the script comprises initial parameters provided prior to runtime.

7. The method of claim 1 wherein the parameter comprises a plurality of parameters, and wherein the method further comprises looping through exceptions generated by the byte code until each of the plurality of parameters has been provided.

8. The method of claim 7 wherein each of the plurality of parameters is associated with its own exception.

9. The method of claim 7 wherein each of the plurality of parameters is associated with the same exception.

10. The method of claim 7 wherein a size of the plurality of parameters is determined by at least one of the plurality of parameters at runtime.

11. A non-transitory computer-readable memory comprising instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

providing a script to a command-line scripting module, wherein;

the script executes a function that requires the parameter; and

the script does not provide the parameter to the function;

generating byte code for the function, wherein try-catch code is automatically inserted around code that uses the parameter in the function;

executing the byte code on a virtual machine until an exception is generated because the parameter was not provided to the function, wherein the function is unable to request the parameter as a user input during runtime;

passing the exception from the virtual machine to the command-line scripting module;

extracting a parameter identifier from the exception at the command-line scripting module;

generating output using the parameter identifier at the command-line scripting module, wherein the output requests the parameter;

receiving input at the command-line scripting module that includes the parameter;

re-executing the byte code with the parameter.

12. The non-transitory computer-readable memory according to claim 11 wherein the script comprises JYTHON code, and wherein the byte code comprises JAVA byte code.

13. The non-transitory computer-readable memory according to claim 11 wherein the byte code is generated using a specialized compiler to recognize code segments requesting the parameter in the script.

14. The non-transitory computer-readable memory according to claim 11 wherein the parameter comprises a password.

15. The non-transitory computer-readable memory according to claim 11 wherein the parameter comprises a plurality of parameters, and wherein the instructions cause the one or more processors to perform further operations comprising looping through exceptions generated by the byte code until each of the plurality of parameters has been provided.

16. The non-transitory computer-readable memory according to claim 15 wherein each of the plurality of parameters is associated with its own exception.

17. The non-transitory computer-readable memory according to claim 15 wherein each of the plurality of parameters is associated with the same exception.

18. A system comprising:

one or more processors; and

a memory communicatively coupled with and readable by the one or more processors and comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising;

providing a script to a command-line scripting module, wherein;

the script executes a function that requires the parameter; and

the script does not provide the parameter to the function;

generating byte code for the function, wherein try-catch code is automatically inserted around code that uses the parameter in the function;

executing the byte code on a virtual machine until an exception is generated because the parameter was not provided to the function, wherein the function is unable to request the parameter as a user input during runtime;

passing the exception from the virtual machine to the command-line scripting module;

extracting a parameter identifier from the exception at the command-line scripting module;

generating output using the parameter identifier at the command-line scripting module, wherein the output requests the parameter;

receiving input at the command-line scripting module that includes the parameter;

re-executing the byte code with the parameter.

19. The system of claim 18 wherein the script comprises JYTHON code, and wherein the byte code comprises JAVA byte code.

20. The system of claim 18 wherein the byte code is generated using a specialized compiler to recognize code segments requesting the parameter in the script.