Rule-based automatic class generation from a JSON message

• US 9,588,742 B2
• Filed: 02/12/2014
• Issued: 03/07/2017
• Est. Priority Date: 09/20/2013
• Status: Active Grant

• Current Assignee: Oracle International Corporation (Oracle Corporation)
• Original Assignee: Oracle International Corporation (Oracle Corporation)
• Inventors: Laurent, Nicole Jodie, Rodgers, Michael Patrick, Shakespeare, Darryl Martin
• Primary Examiner(s): Rutten, James D
• Application Number:
  US14/179,548
• Publication Number:
  US 20150089470A1
• Time in Patent Office: 1,119 Days
• Field of Search: 717/108
• US Class Current: 1/1
• CPC Class Codes: G06F 8/315 Object-oriented languages
• CPC Class Codes: G06F 8/51 Source to source

Abstract

A method, system, and computer program product for Java development environments. The method commences upon receiving a set of one or more rules to be applied to one or more JSON messages, then generating of one or more Java classes respective to received JSON messages. The received JSON messages can be retrieved from a repository for JSON message files, or the JSON messages can be received by sniffing a message transmitted over a network link. The rules can be applied according to one or more precedence regimes, and applying the precedence regimes over the two or more rules can be considered in a pre-processing step performed before receiving a JSON message or can be considered after receiving a JSON message.

Claims

1. A computer implemented method using a processor executing a process to perform one or more steps, the steps comprising:

receiving a set of one or more rules that include an identification portion and an action portion to be applied to one or more JSON messages;

receiving the one or more JSON messages;

identifying a class structural or hierarchical characteristic provided by at least one JSON message in the one or more JSON messages;

identifying a final class structural or hierarchical characteristic for a Java class to be generated for the at least one JSON message;

generating a structural determination result at least by determining whether there is a structural or hierarchical change between the class structural characteristic provided by the at least one JSON message in the one or more JSON messages and the final class structural characteristic of the Java class to be generated for the at least one JSON message;

generating one or more Java classes respective to the one or more JSON messages using at least some of the set of one or more rules based in part or in whole on the structural determination results, the one or more JSON messages converted into the one or more Java classes by applying one or more actions specified by the action portion when a corresponding identification portion is identified within at least one of the received one or more JSON messages to convert the one or more JSON messages into the one or more Java classes;

identifying a form-oriented environment in which one or more message-based services are executed;

identifying a message-based service that returns a JSON message representation of an executed form and data associated with the executed form in the form-oriented environment;

accessing the data associated with the executed form for the JSON message representation;

generating parsing results at least by parsing the data associated with the executed form for the JSON message representation;

converting at least a portion of the JSON message representation into a first Java object at least by deserializing the at least the portion of the JSON message representation;

retrieving Java consumable data from the first Java object at least by referencing the first Java object using at least a native Java object;

identifying a first proprietary data type in a Java environment;

communicating first data values in the first proprietary data type in a first JSON message, rather than communicating in the first proprietary data type within the Java environment;

identifying a first preferred format for a first Java class;

generating the first Java class in the first preferred format at least by applying one or more rules in the set of one or more rules to at least a part of the first JSON message to convert the at least the part of the first JSON message to the first Java class;

identifying a second proprietary data type in the Java environment;

generating a different proprietary data type at least by transforming the second proprietary data type into the different proprietary data type;

communicating second data values in the different proprietary data type in a second JSON message, rather than communicating in the different proprietary data type within the Java environment;

identifying a second preferred format for a second Java class;

generating the second Java class in the second preferred format at least by applying at least one rule in the set of one or more rules to at least a part of the second JSON message to convert the at least the part of the second JSON message to the second Java class;

identifying a hostname, a port, an URL, and login credentials for a server;

receiving, by a plug-in, a third JSON message by listening to the port for the server;

identifying a third preferred format for a third Java class;

generating the third Java class in the third preferred format at least by applying at least some of the set of one or more rules to at least a part of the third JSON message to convert the at least the part of the third JSON message to the third Java class on-the-fly;

identifying a skeleton of one or more JSON messages;

creating one or more needed Java classes based on the skeleton of the one or more JSON messages;

identifying a first rule in the set of one or more rules, the first rule defining one or more Java language constructs that are allowed to be present in at least one Java class of the one or more Java classes with the rule;

identifying a second rule in the set of one or more rules, the second rule one or more functions and one or more stylistic aspects including one or more formatting characteristics of the one or more Java language constructs;

defining a fourth Java class with a public access modifier, the fourth Java class comprising a plurality of Java language constructs, a plurality of fields, and a plurality of methods;

defining the plurality of fields of the fourth Java class with private access modifiers;

defining the plurality of methods of the fourth Java class with public access modifiers, return types, method names, and parameters;

selecting a source from which the set of one or more rules is identified;

selecting a hierarchical structure for at least one Java class of the one or more Java classes;

verifying integrity of the set of one or more rules at least by detecting inconsistencies; and

defining a hierarchy on a storage device by using a generated Java class of the one or more Java classes.

2. The method of claim 1, wherein receiving the one or more JSON messages comprises sniffing a message transmitted over a network link.

3. The method of claim 2, wherein receiving the one or more JSON messages further comprises extracting JSON messages from a protocol exchange.

4. The method of claim 3, further comprising initiating the protocol exchange.

5. The method of claim 1, further comprising receiving a set of one or more preferences pertaining to a configuration of the set of one or more rules to be applied to the one or more JSON messages.

6. The method of claim 1, further comprising applying a precedence over two or more of the set of one or more rules.

7. The method of claim 6, wherein applying the precedence over the two or more of the set of one or more rules is performed before receiving the one or more JSON messages.

8. The method of claim 6, wherein applying the precedence over the two or more of the set of one or more rules is performed after receiving the one or more JSON messages.

9. The method of claim 6, wherein the two or more of the one or more rules are applied over a first key-value pair before applying the two or more of the one or more rules over a second key-value pair.

10. The method of claim 1, further comprising;

applying at least one of a set of one or more preferences pertaining to a configuration of the set of one or more rules to be applied to the one or more JSON messages or one or more preconditions specifying one or more conditions to be met prior to applying the set of one or more rules, and

applying at least one of the set of one or more rules that specify one or more operations to be performed, a condition on when to perform one or more operations or sets of operations, an identification of when to perform one or more operations or sets of operations, or a set of operations to perform when a condition is met, and

wherein the one or more JSON messages are received from at least one of a stream, sniffed from a message transmitted over a network link, extracted from a protocol exchange, or accessed from a storage device, and

wherein the one or more Java classes are a member of a package and include one or more fields that correspond to predefined classes.

11. A computer program product embodied in a non-transitory computer readable medium, the computer readable medium having stored thereon a sequence of instructions which, when executed by a processor causes the processor to execute a process, the process comprising:

receiving a set of one or more rules that include an identification portion and an action portion to be applied to one or more JSON messages;

receiving the one or more JSON messages;

identifying a class structural or hierarchical characteristic provided by at least one JSON message in the one or more JSON messages;

identifying a final class structural or hierarchical characteristic for a Java class to be generated for the at least one JSON message;

generating a structural determination result at least by determining whether there is a structural or hierarchical change between the class structural characteristic provided by the at least one JSON message in the one or more JSON messages and the final class structural characteristic of the Java class to be generated for the at least one JSON message;

generating one or more Java classes respective to the one or more JSON messages using at least some of the set of one or more rules based in part or in whole on the structural determination results, the one or more JSON messages converted into the one or more Java classes by applying one or more actions specified by the action portion when a corresponding identification portion is identified within at least one of received the one or more JSON messages to convert the one or more JSON messages into the one or more Java classes;

identifying a form-oriented environment in which one or more message-based services are executed;

identifying a message-based service that returns a JSON message representation of an executed form and data associated with the executed form in the form-oriented environment;

accessing the data associated with the executed form for the JSON message representation;

generating parsing results at least by parsing the data associated with the executed form for the JSON message representation;

converting at least a portion of the JSON message representation into a first Java object at least by deserializing the at least the portion of the JSON message representation;

retrieving Java consumable data from the first Java object at least by referencing the first Java object using at least a native Java object;

identifying a first proprietary data type in a Java environment;

communicating first data values in the first proprietary data type in a first JSON message, rather than communicating in the first proprietary data type within the Java environment;

identifying a first preferred format for a first Java class;

generating the first Java class in the first preferred format at least by applying one or more rules in the set of one or more rules to at least a part of the first JSON message to convert the at least the part of the first JSON message to the first Java class;

identifying a second proprietary data type in the Java environment;

generating a different proprietary data type at least by transforming the second proprietary data type into the different proprietary data type;

communicating second data values in the different proprietary data type in a second JSON message, rather than communicating in the different proprietary data type within the Java environment;

identifying a second preferred format for a second Java class;

generating the second Java class in the second preferred format at least by applying at least one rule in the set of one or more rules to at least a part of the second JSON message to convert the at least the part of the second JSON message to the second Java class;

identifying a hostname, a port, an URL, and login credentials for a server;

receiving, by a plug-in, a third JSON message by listening to the port for the server;

identifying a third preferred format for a third Java class;

generating the third Java class in the third preferred format at least by applying at least some of the set of one or more rules to at least a part of the third JSON message to convert the at least the part of the third JSON message to the third Java class on-the-fly;

identifying a skeleton of one or more JSON messages;

creating one or more needed Java classes based on the skeleton of the one or more JSON messages;

identifying a first rule in the set of one or more rules, the first rule defining one or more Java language constructs that are allowed to be present in at least one Java class of the one or more Java classes with the rule;

identifying a second rule in the set of one or more rules, the second rule one or more functions and one or more stylistic aspects including one or more formatting characteristics of the one or more Java language constructs;

defining a fourth Java class with a public access modifier, the fourth Java class comprising a plurality of Java language constructs, a plurality of fields, and a plurality of methods;

defining the plurality of fields of the fourth Java class with private access modifiers;

defining the plurality of methods of the fourth Java class with public access modifiers, return types, method names, and parameters;

selecting a source from which the set of one or more rules is identified;

selecting a hierarchical structure for at least one Java class of the one or more Java classes;

verifying integrity of the set of one or more rules at least by detecting inconsistencies; and

defining a hierarchy on a storage device by using a generated Java class of the one or more Java classes.

12. The computer program product of claim 11, wherein receiving the one or more JSON messages comprises a search through a repository for JSON message files.

13. The computer program product of claim 11, wherein receiving the one or more JSON messages comprises sniffing a message transmitted over a network link.

14. The computer program product of claim 13, wherein receiving the one or more JSON messages further comprises extracting JSON messages from a protocol exchange.

15. The computer program product of claim 14, further comprising initiating the protocol exchange.

16. The computer program product of claim 11, further comprising instructions for receiving a set of one or more preferences pertaining to a configuration of the set of one or more rules to be applied to the one or more JSON messages.

17. The computer program product of claim 11, further comprising instructions for applying a precedence over two or more of the set of one or more rules.

18. The computer program product of claim 17, wherein applying the precedence over the two or more of the set of one or more rules is performed before receiving the one or more JSON messages.

19. A computer system, comprising:

a processor comprising a class generator engine to receive a set of one or more rules that include an identification portion and an action portion to be applied a set of one or more JSON messages, to identify a class structural or hierarchical characteristic provided by at least one JSON message in the one or more JSON messages, to identify a final class structural or hierarchical characteristic for a Java class to be generated for the at least one JSON message, and to generate a structural determination result at least by determining whether there is a structural or hierarchical change between the class structural characteristic provided by the at least one JSON message in the one or more JSON messages and the final class structural characteristic of the Java class to be generated for the at least one JSON message;

a storage device to store one or more generated Java classes respective to the one or more JSON messages using at least some of the set of one or more rules based in part or in whole on the structural determination results, the one or more JSON messages converted into the one or more Java classes by applying one or more actions specified by the action portion when a corresponding identification portion is identified within at least one of the received one or more JSON messages to convert the one or more JSON messages into the one or more Java classes;

the processor comprising a class generator engine further configured to;

identify a form-oriented environment in which one or more message-based services are executed;

identify a message-based service that returns a JSON message representation of an executed form and data associated with the executed form in the form-oriented environment;

access the data associated with the executed form for the JSON message representation;

generate parsing results at least by parsing the data associated with the executed form for the JSON message representation;

convert at least a portion of the JSON message representation into a first Java object at least by deserializing the at least the portion of the JSON message representation;

retrieve Java consumable data from the first Java object at least by referencing the first Java object using at least a native Java object;

identify a first proprietary data type in a Java environment;

communicate first data values in the first proprietary data type in a first JSON message, rather than communicating in the first proprietary data type within the Java environment;

identify a first preferred format for a first Java class;

generate the first Java class in the first preferred format at least by applying one or more rules in the set of one or more rules to at least a part of the first JSON message to convert the at least the part of the first JSON message to the first Java class;

identify a second proprietary data type in the Java environment;

generate a different proprietary data type at least by transforming the second proprietary data type into the different proprietary data type;

communicate second data values in the different proprietary data type in a second JSON message, rather than communicating in the different proprietary data type within the Java environment;

identify a second preferred format for a second Java class;

generate the second Java class in the second preferred format at least by applying at least one rule in the set of one or more rules to at least a part of the second JSON message to convert the at least the part of the second JSON message to the second Java class;

identify a hostname, a port, an URL, and login credentials for a server;

receive, by a plug-in, a third JSON message by listening to the port for the server;

identify a third preferred format for a third Java class;

generate the third Java class in the third preferred format at least by applying at least some of the set of one or more rules to at least a part of the third JSON message to convert the at least the part of the third JSON message to the third Java class on-the-fly;

identify a skeleton of one or more JSON messages;

create one or more needed Java classes based on the skeleton of the one or more JSON messages;

identify a first rule in the set of one or more rules, the first rule defining one or more Java language constructs that are allowed to be present in at least one Java class of the one or more Java classes with the rule;

identify a second rule in the set of one or more rules, the second rule one or more functions and one or more stylistic aspects including one or more formatting characteristics of the one or more Java language constructs;

define a fourth Java class with a public access modifier, the fourth Java class comprising a plurality of Java language constructs, a plurality of fields, and a plurality of methods;

define the plurality of fields of the fourth Java class with private access modifiers;

define the plurality of methods of the fourth Java class with public access modifiers, return types, method names, and parameters;

select a source from which the set of one or more rules is identified;

select a hierarchical structure for at least one Java class of the one or more Java classes;

verify integrity of the set of one or more rules at least by detecting inconsistencies; and

define a hierarchy on a storage device by using a generated Java class of the one or more Java classes.

20. The computer system of claim 19, wherein the one or more JSON messages is retrieved from a repository comprising JSON message files.