CN103246671A - Processing method and device for abstract syntax notation files - Google Patents
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Abstract
Provided are a processing method and device for abstract syntax notation files. The method comprises the steps of analyzing abstract syntax notation one (ASN.1) files so as to generate data records, structure definition linked lists and conversion linked lists; and generating data definition codes according to the data records, the structure definition linked lists and the conversion linked lists. By applying the processing method and device, the problems that in the prior art, processing methods for the ASN.1 files fall behind and are applied on the basis of mutual conversion of bit steams and data types, developers need to manually write in the codes, workload is large, and risk of introducing defects is large in the writing process are solved, programming languages can be automatically generated, the risk of manually introducing the defects in the programming process is reduced, and system performance and working efficiency are improved.
Description
Technical field
The present invention relates to the communications field, in particular to disposal route and the device of a kind of abstract syntax notation one (Abstract Syntax Notation One abbreviates ASN.1 as) file.
Background technology
ASN.1 is the standard method of describing network transmission information format, is used for defining abstract data structure by open system interlink (Open System Interconnection abbreviates OSI as).It is independent of the coding rule of computing machine, programming language and application program, provides one to overlap mark flexibly, allows the definition numerous types of data.ASN.1 relates to two kinds of application: " to the description of data structure " and " to coding or the decoding of describing ".The set of rule that the data type object of ASN.1 document definition is converted to the bit stream of " 0 " and " 1 " calls Basic Encoding Rules (Basic Encoding Rules abbreviates BER as).
To the processing of ASN.1 file, majority all is that the i.e. mutual conversion of bit stream and data type launches around coding, decoding at present.In the correlation technique, project developer normally comes the hand-coding code in conjunction with the structure type of stipulating in the interface document and organization definition to the processing of ASN.1 file, but with the data structure of ASN.1 definition artificial convert concrete program compiler to.But because ASN.1 file content complexity, organization definition quantity are huge, often be accompanied by the duplication of labour in the performance history, not only increased developer's workload, but also prolonged the construction cycle, improved the risk that the artificial origin introduces defective.
The CN200810137647.3 Chinese patent provides a kind of TLV format processing method for communication data, may further comprise the steps: the T of definition integer type in the ASN.1 form; Transmit leg is filled in the message of ASN.1 form, and it comprises data structure instance; Transmit leg is code stream with message coding, and the code stream of the data structure instance in the message comprises V, perhaps comprises the integer type of V, the L of V and V.This patent is only described the conversion that receiving-transmitting sides is handled TLV code stream and ASN.1 file, realizes the intercommunication of ASN.1 different editions.
The CN200810123563.4 Chinese patent relates to a kind of method according to ASN.1 information dynamic creation data model, comprising: set up memory pool, and the initialization model tree; Read information flow, obtain tag types and data length; Call different processing functions according to tag types: be the STRUCT type 1), in model tree, insert a child node, represent that it is the root of a data structure, 2) be simple types, in model tree, create a leaf node; Continue to read, handle the information of back, finish until information flow, obtain complete multiway tree data model.This patent only can directly read the ASN.1 data stream, be converted into data model, or data model is converted to ASN.1 information, the data model that generates is represented with multiway tree, the Memory Allocation of node is used the pool tube reason, the multiway tree that has guaranteed last generation has utilized memory source to greatest extent, and has increased a data attribute linked-list, can realize the retrieval of catalog search and data attribute efficiently.This patent is only described the data structure object of how to preserve the ASN.1 file in internal memory, how to improve memory usage.
The CN200510135665 Chinese patent provides a kind of implementation method that generates automatically based on protocol Data Unit (PDU) codec code of ASN.1 definition, at first determine the definition rule and mark rule of the data type in self-defining header file, used, and generate header file according to this definition rule and mark rule; According to the definition rule and mark rule of described data type, coding generates the header file analysis tool, and corresponding code generation tool again; Use described header file analysis tool to scan each header file, parse the data structure name that defines in each header file and the relation between the structure; Use described code generation tool then, the relation according between the data structure name that parses from header file and the structure produces the code of PDU structure encoding and decoding automatically.This patent only describes how to realize the PDU Code And Decode of ASN.1 file content in the network transmission.
Therefore, in the correlation technique, to the processing of ASN.1 file, be based on all that the mutual conversion of bit stream and data type launches, the developer needs write code by hand, and workload is bigger, and in compiling procedure, the risk of introducing defective is bigger.
Summary of the invention
The invention provides a kind of disposal route and device of ASN.1 file, to solve at least in the correlation technique, processing to the ASN.1 file, be based on all that the mutual conversion of bit stream and data type launches, the developer needs the manual code that writes, workload is bigger, and in compiling procedure, introduces the bigger problem of risk of defective.
According to an aspect of the present invention, provide a kind of disposal route of ASN.1 file, having comprised: the ASN.1 file has been resolved to generate data recording, organization definition chained list and conversion chained list; Generate the data definition code according to described data recording, described organization definition chained list and described conversion chains link table.
Preferably, the ASN.1 file being resolved to generate data recording, organization definition chained list and conversion chained list comprises: file type name, header file name, reference type name and organization definition according to the described ASN.1 file that reads generate described data recording; Read the structure name of described ASN.1 file, generate member type and member's name according to described reference type name, generate described organization definition chained list according to described structure name, described member type and described member's name; Type conversion relation according to the described ASN.1 file that reads generates described conversion chained list.
Preferably, generating the data definition code according to described data recording, described organization definition chained list and described conversion chains link table comprises: generate source filename according to described file type name; Generate pre-service header file in the described source file according to described header file name; According to described organization definition chained list generating structure definition; Pre-service header file in described source filename, the described source file, described organization definition are write default directory location to generate the data definition code.
Preferably, before the ASN.1 file being resolved to generate data recording, organization definition chained list and conversion chained list, also comprise: open described ASN.1 file with read-only mode, and the file content of described ASN.1 file is kept in the filebuf; Described ASN.1 file in the filebuf is carried out denoising, and wherein, it is one of following that noise comprises at least: unnecessary space, tab key, unnecessary newline, unnecessary note.
Preferably, the described ASN.1 file in the filebuf is carried out also comprising after the denoising: will carry out the ASN.1 file content standardized format after the denoising.
Preferably, after generating the data definition code according to described data recording, described organization definition chained list and described conversion chains link table, also comprise: with the form of creating or cover described data definition code is saved as header file and source file.
According to a further aspect in the invention, provide a kind for the treatment of apparatus of ASN.1 file, having comprised: parsing module is used for the ASN.1 file is resolved to generate data recording, organization definition chained list and conversion chained list; Generation module is used for generating the data definition code according to described data recording, described organization definition chained list and described conversion chains link table.
Preferably, described parsing module comprises: first generation unit is used for generating described data recording according to file type name, header file name, reference type name and the organization definition of the described ASN.1 file that reads; Second generation unit for the structure name that reads described ASN.1 file, generates member type and member's name according to described reference type name, generates described organization definition chained list according to described structure name, described member type and described member's name; The 3rd generates the unit, is used for generating described conversion chained list according to the type conversion relation of the described ASN.1 file that reads.
Preferably, described generation module comprises: the 4th generation unit is used for generating source filename according to described file type name; The 5th generation unit is for the pre-service header file that generates described source file according to described header file name; The 6th generation unit is used for according to described organization definition chained list generating structure definition; Writing unit is used for the pre-service header file of described source filename, described source file, described organization definition are write default directory location to generate the data definition code.
Preferably, described device also comprises: read module is used for opening described ASN.1 file with read-only mode, and the file content of described ASN.1 file is kept in the filebuf; The denoising module is used for the described ASN.1 file of filebuf is carried out denoising, and wherein, it is one of following that noise comprises at least: space, tab key, newline, note.
The present invention has adopted following method: the ASN.1 file is resolved, generate data recording, organization definition chained list and conversion chained list according to analysis result, and generate the data definition code according to the data recording that generates, organization definition chained list and conversion chains link table.By using said method, solved in the correlation technique, disposal route to the ASN.1 file is comparatively backward, is based on all that the mutual conversion of bit stream and data type launches, and the developer needs the manual code that write, workload is bigger, and in compiling procedure, introduce the bigger problem of risk of defective, and then can generate programming language automatically, reduce the artificial risk of introducing defective in the programming process, and promoted system performance and work efficiency.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the process flow diagram according to the disposal route of the ASN.1 file of the embodiment of the invention;
Fig. 2 is the process flow diagram one of the disposal route of ASN.1 file according to the preferred embodiment of the invention;
Fig. 3 is the flowchart 2 of the disposal route of ASN.1 file according to the preferred embodiment of the invention;
Fig. 4 is the structured flowchart one according to the treating apparatus of the ASN.1 file of the embodiment of the invention;
Fig. 5 is the structured flowchart two according to the treating apparatus of the ASN.1 file of the embodiment of the invention;
Fig. 6 is the structured flowchart one of the treating apparatus of ASN.1 file according to the preferred embodiment of the invention; And
Fig. 7 is the structured flowchart two of the treating apparatus of ASN.1 file according to the preferred embodiment of the invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Disposal route to the ASN.1 file in the correlation technique is comparatively backward, be based on all that the mutual conversion of bit stream and data type launches, the developer needs the manual code that writes, workload is bigger, and in compiling procedure, introduce the bigger problem of risk of defective, the embodiment of the invention is based on the autonomous behavior of ASN.1 grammer, make its described data type can with multiple programming language (such as C, C++) set up contact, it is same data structure, can realize with programming language, can describe with the ASN.1 grammer, be i.e. " two kinds of existing waies of same design philosophy ".This is ASN.1 file and the concrete programming language basis of changing mutually just.
According to above principle, can design the program code that directly generates certain programming language from an ASN.1 file, simplify from the ASN.1 file to interface document, again to the intermediate link of writing code, be reduced in the risk of introducing defective in the process of artificial conversion, improve the efficient of program development.Therefore, the embodiment of the invention provides a kind of disposal route of ASN.1 file, its treatment scheme as shown in Figure 1, the method comprising the steps of S102 is to step S104:
Step S102 resolves to generate data recording, organization definition chained list and conversion chained list to the ASN.1 file;
Step S104 generates the data definition code according to data recording, organization definition chained list and conversion chains link table.
The embodiment of the invention has adopted following method: the ASN.1 file is resolved, generate data recording, organization definition chained list and conversion chained list according to analysis result, and generate the data definition code according to the data recording that generates, organization definition chained list and conversion chains link table.By using said method, solved in the correlation technique, disposal route to the ASN.1 file is comparatively backward, is based on all that the mutual conversion of bit stream and data type launches, and the developer needs the manual code that write, workload is bigger, and in compiling procedure, introduce the bigger problem of risk of defective, and then can generate programming language automatically, reduce the artificial risk of introducing defective in the programming process, and promoted system performance and work efficiency.
Before above-mentioned steps S102 carries out, can open the ASN.1 file with read-only mode, and the file content of ASN.1 file is kept in the filebuf; For further optimize buffering go in the file content of storage, can carry out denoising to the ASN.1 file in the filebuf, wherein, it is one of following that noise comprises at least: unnecessary space, tab key, unnecessary newline, unnecessary note.
In implementation process, denoising can be to filter out " noise character ", for example, clear unnecessary space, tab key, unnecessary newline, unnecessary notes etc. do not have practical significance, unnecessary character to resolving.In the stamp that filters " noise character " became, unnecessary blank character, newline, a plurality of continuous blank characters etc. can replace with a space.By this denoising, data useless in the ASN.1 file can be carried out simple process, improve the efficient of follow-up resolving.
Based on raising the efficiency and accuracy is considered, after the ASN.1 file is carried out denoising, can also be with the ASN.1 file content standardized format that carries out after the denoising.For example, according to the self-defining key word of ASN.1 grouping processings of sorting, the key word that will contain common meaning is formed one group, the processing procedure that does not have related key word to divide into groups with file content.
Above-mentioned preferred implementation is to carry out before step S102, and its implementation process is conducive to the parsing of ASN.1 file.In the process that above-mentioned steps S102 implements, can comprise following processing: file type name, header file name, reference type name and organization definition according to the ASN.1 file that reads generate data recording; Read the structure name of ASN.1 file, generate member type and member's name according to the reference type name, according to structure name, member type and member's name generating structure definition chained list; Type conversion relation according to the ASN.1 file that reads generates the conversion chained list.
Can carry out following processing in the process that generates the data definition code according to data recording, organization definition chained list and conversion chains link table: generate source filename according to the file type name; According to the pre-service header file in the header file name generation source file; Define according to organization definition chained list generating structure; Pre-service header file, organization definition in source filename, the source file are write default directory location to generate the data definition code.Wherein, default directory location can be system default setting, also can manually set in advance as required.
After execution in step S104, the data definition code can also be saved as header file and source file.ASN.1 file final generation can compile through a series of resolving source file and header file.In implementation process, the preservation of data definition code can exist with the form of creating or cover.Create header file and the source file of namely setting up new data definition code; Source file and header file that covering is about to new data definition code cover on original header file and the source file.The existence of creating and covering dual mode makes the dirigibility of system stronger, and adopts the mode that covers to handle on the basis of existing source document, has saved resource.
The disposal route of above-mentioned ASN.1 file can generate the source code file of specifying programming language according to analysis result.The crossover tool of realizing is directly changed into source code with the ASN.1 file, and wherein, programming language is (for example C, the C++) that can arbitrarily customize, the source code that generates can be directly used in the project exploitation, help the developer to shorten the scramble time, raise the efficiency, reduce the probability that fault is introduced.
Be the preferred embodiment of the present invention to generate the TLV organization definition below, the present invention is further specified.
Shown in Fig. 2 is the treatment scheme of this preferred embodiment, and this flow process is divided into following three steps, comprises that step S202 is to step S208:
Step S202 opens current ASN.1 file with read-only mode, and file content is preserved into buffer zone.
Step S204 generates ASN.1 document analysis result.
Step S206 generates the data definition code, and will generate the result to create or the form of covering is preserved into header file and source file.
Step S208 after current ASN.1 document analysis finishes, resolves next ASN.1 file.
In implementation process, step S204 can comprise following processing procedure:
(1) filtering noise, this process refer to remove unnecessary space, tab key, unnecessary newline, unnecessary note etc., resolving are not had practical significance, unnecessary character; (2) file content standardized format, this process refer to file content, and according to the arrangement of sorting of the self-defining key word of ASN.1, the key word that will contain common meaning is formed one group, does not have the processing procedure of related key word grouping.(3) extracting objects filename, this process refer to find the file name of spanned file according to the content in the ASN.1 file, i.e. the filename of header file and source file.(4) extract the header file name, this process refers to the file content according to ASN.1, finds and related other ASN.1 file names of current ASN.1 file, generates the process of corresponding header file name.(5) extract subtype definition, this process refers to according to current ASN.1 file content, the process of extracted data organization definition.(6) obtain the type conversion mapping relations, this process refers to extract the transfer process of any TLV type and circular form TLV from current ASN.1 file.
The process of the further processing of step S206 may further comprise the steps (step S302 is to step S322) as shown in Figure 3:
Step S302 reads a node in " intermediate result chained list ".
Step S304 according to node attribute values, judges whether it is " associative form " TLV.If, execution in step S306 then, otherwise execution in step S308.
Step S306 generates the associative form code, execution in step S320.
Step S308 according to node attribute values, judges whether it is " circular form " TLV.If, execution in step S310 then, otherwise execution in step S312.
Step S310 generates the circular form code, execution in step S320.
Step S312 according to node attribute values, judges whether it is " platypelloid type " TLV.If, execution in step S314 then, otherwise execution in step S316.
Step S314 generates the platypelloid type code, execution in step S320.
Step S316 according to node attribute values, judges whether it is " mixed type " TLV.If, execution in step S318 then, otherwise execution in step S320.
Step S318 generates the mixed type code, execution in step S320.
Step S320 inserts file life and definition buffer zone respectively with the code that generates.
Step S322 ignores the present node type, reads the next node in " intermediate result chained list ".
After above-mentioned all node processing finish, the generation result in the buffer zone is preserved into spanned file.
To the parsing of ASN.1 file and the result of coding, be used for the code construction of project development process in this preferred embodiment.Compare with correlation technique, resolving has clear and definite specific aim, and is littler to the expense of system.
The embodiment of the invention also provides a kind for the treatment of apparatus of ASN.1 file, and as shown in Figure 4, this device comprises: parsing module 10 is used for the ASN.1 file is resolved to generate data recording, organization definition chained list and conversion chained list; Generation module 20 with parsing module 10 couplings, is used for generating the data definition code according to data recording, organization definition chained list and conversion chains link table.
Fig. 5 has provided the structured flowchart to parsing module 10 and generation module 20 further refinements, parsing module 10 can comprise: first generation unit 102 is used for generating data recording according to file type name, header file name, reference type name and the organization definition of the ASN.1 file that reads; Second generation unit 104 with 102 couplings of first generation unit, is used for reading the structure name of ASN.1 file, generates member type and member's name according to the reference type name, according to structure name, member type and member's name generating structure definition chained list; The 3rd generates unit 106, with 104 couplings of second generation unit, is used for generating the conversion chained list according to the type conversion relation of the ASN.1 file that reads.
As shown in Figure 5, generation module 20 can also comprise: the 4th generation unit 202 is used for generating source filename according to the file type name; The 5th generation unit 204 with 202 couplings of the 4th generation unit, is used for generating according to the header file name pre-service header file of source file; The 6th generation unit 206 with 204 couplings of the 5th generation unit, is used for defining according to organization definition chained list generating structure; Writing unit 208 with 206 couplings of the 6th generation unit, is used for pre-service header file, the organization definition of source filename, source file are write default directory location to generate the data definition code.
Fig. 6 has provided the structured flowchart of the preferred implementation of said apparatus, and as shown in Figure 6, said apparatus can also comprise: read module 30 is used for opening the ASN.1 file with read-only mode, and the file content of ASN.1 file is kept in the filebuf; Denoising module 40 with read module 30 coupling, is used for the ASN.1 file of filebuf is carried out denoising, and wherein, it is one of following that noise comprises at least: space, tab key, newline, note.
In order to make this unit efficiency higher, in implementation process, as shown in Figure 7, can increase standardized module 50, with 10 couplings of denoising module 40 and parsing module, be used for carrying out the ASN.1 file content standardized format after the denoising.
As can be seen from the above description, the present invention has realized following technique effect:
The embodiment of the invention is by transforming the ASN.1 document analysis, make the ASN.1 file be converted into the program code that can compile, solved in the correlation technique, disposal route to the ASN.1 file is comparatively backward, be based on all that the mutual conversion of bit stream and data type launches, the developer needs the manual code that writes, workload is bigger, and in compiling procedure, introduce the bigger problem of risk of defective, and then can generate programming language automatically, reduce the artificial risk of introducing defective in the programming process, and promoted system performance and work efficiency.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the memory storage and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the disposal route of an abstract syntax notation one ASN.1 file is characterized in that, comprising:
The ASN.1 file is resolved to generate data recording, organization definition chained list and conversion chained list;
Generate the data definition code according to described data recording, described organization definition chained list and described conversion chains link table.
2. method according to claim 1 is characterized in that, the ASN.1 file is resolved to generate data recording, organization definition chained list and conversion chained list comprise:
File type name, header file name, reference type name and organization definition according to the described ASN.1 file that reads generate described data recording;
Read the structure name of described ASN.1 file, generate member type and member's name according to described reference type name, generate described organization definition chained list according to described structure name, described member type and described member's name;
Type conversion relation according to the described ASN.1 file that reads generates described conversion chained list.
3. method according to claim 2 is characterized in that, generates the data definition code according to described data recording, described organization definition chained list and described conversion chains link table and comprises:
Generate source filename according to described file type name;
Generate pre-service header file in the described source file according to described header file name;
According to described organization definition chained list generating structure definition;
Pre-service header file in described source filename, the described source file, described organization definition are write default directory location to generate the data definition code.
4. method according to claim 1 is characterized in that, before the ASN.1 file being resolved to generate data recording, organization definition chained list and conversion chained list, also comprises:
Open described ASN.1 file with read-only mode, and the file content of described ASN.1 file is kept in the filebuf;
Described ASN.1 file in the filebuf is carried out denoising, and wherein, it is one of following that noise comprises at least: space, tab key, newline, note.
5. method according to claim 4 is characterized in that, the described ASN.1 file in the filebuf is carried out also comprising after the denoising:
To carry out the ASN.1 file content standardized format after the denoising.
6. method according to claim 1 is characterized in that, after generating the data definition code according to described data recording, described organization definition chained list and described conversion chains link table, also comprises:
With the form of creating or cover described data definition code is saved as header file and source file.
7. the treating apparatus of an abstract syntax notation one ASN.1 file is characterized in that, comprising:
Parsing module is used for the ASN.1 file is resolved to generate data recording, organization definition chained list and conversion chained list;
Generation module is used for generating the data definition code according to described data recording, described organization definition chained list and described conversion chains link table.
8. device according to claim 7 is characterized in that, described parsing module comprises:
First generation unit is used for generating described data recording according to file type name, header file name, reference type name and the organization definition of the described ASN.1 file that reads;
Second generation unit for the structure name that reads described ASN.1 file, generates member type and member's name according to described reference type name, generates described organization definition chained list according to described structure name, described member type and described member's name;
The 3rd generates the unit, is used for generating described conversion chained list according to the type conversion relation of the described ASN.1 file that reads.
9. device according to claim 8 is characterized in that, described generation module comprises:
The 4th generation unit is used for generating source filename according to described file type name;
The 5th generation unit is for the pre-service header file that generates described source file according to described header file name;
The 6th generation unit is used for according to described organization definition chained list generating structure definition;
Writing unit is used for the pre-service header file of described source filename, described source file, described organization definition are write default directory location to generate the data definition code.
10. device according to claim 7 is characterized in that, described device also comprises:
Read module is used for opening described ASN.1 file with read-only mode, and the file content of described ASN.1 file is kept in the filebuf;
The denoising module is used for the described ASN.1 file of filebuf is carried out denoising, and wherein, it is one of following that noise comprises at least: space, tab key, newline, note.
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| CN106502707A (en) * | 2016-11-14 | 2017-03-15 | 腾讯科技（深圳）有限公司 | Code generating method and device |
| CN112214453A (en) * | 2020-09-14 | 2021-01-12 | 上海微亿智造科技有限公司 | Large-scale industrial data compression storage method, system and medium |
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