CN111343201A - Analysis method, device and system for rapidly adapting to protocol change - Google Patents
Analysis method, device and system for rapidly adapting to protocol change Download PDFInfo
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- CN111343201A CN111343201A CN202010416822.3A CN202010416822A CN111343201A CN 111343201 A CN111343201 A CN 111343201A CN 202010416822 A CN202010416822 A CN 202010416822A CN 111343201 A CN111343201 A CN 111343201A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/03—Protocol definition or specification
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
Abstract
The invention discloses a method, a device and a system for analyzing rapid adaptation protocol change, which solve the problem of rapid adaptation protocol change of a service user. The invention generates protocol configuration files and scheduling configuration files according to protocol specifications, and a protocol analysis management module receives external messages; the protocol analysis management module schedules a protocol analysis module according to the protocol configuration file, extracts message contents from an external message according to the protocol configuration file to generate an internal message and sends the internal message to the service management module; and the service management module receives the internal message and schedules the internal message to a corresponding service module according to the content of the scheduling configuration file, and the service module processes the content of the corresponding internal message. The invention separates the protocol analysis from the message processing, limits the influence of the protocol change on the protocol analysis and the message processing to the minimum range, can quickly adapt to the protocol change and improves the development efficiency.
Description
Technical Field
The invention relates to the field of communication protocols, in particular to a method, a device and a system for analyzing rapid adaptation protocol change.
Background
The various industries often need the docking between different systems, a processing mode is used in the system, and the system and the outside need to follow a certain standard when being docked, so that the problem of protocol analysis occurs. Due to the change of the requirements, the protocol is also changing continuously, and each time the protocol changes, the service user needs to make a series of changes to adapt.
How to improve the adaptation efficiency of a service user and reduce the modification workload, so that the modified system can be put into a production environment for use as soon as possible, is a challenge for the service user.
Three conventional techniques and their drawbacks:
the first conventional technique: acquiring a field name and a field separator in protocol content to be analyzed, taking the field name and the field separator as a pattern string, and constructing a pattern search tree according to the pattern string; and taking the pattern search tree and the contents of the protocol to be analyzed as the input of a finite state automaton, and then carrying out character string matching on the contents by using the finite state automaton to realize the rapid analysis of the protocol. The first conventional technique is only suitable for a string format and a protocol format with a field delimiter and only deals with a protocol parsing process, and does not involve an efficiency problem that affects service development due to protocol modification.
The second conventional technique: the method comprises the steps that a transaction processing rule, an input field relation table and an output field relation table are configured in a configuration analysis module in advance; the transaction processing rules are divided into three types, namely HTTP, TCP and UDP, according to the transaction types; the field mapping module maps the external input field into an internal field required by decoding according to the input field relation table; the transaction distribution module distributes the internal field to the transaction processing module according to the transaction type of the internal field; the transaction processing module acquires a corresponding transaction processing rule according to the type of the internal field, and analyzes an output field corresponding to the internal field according to the transaction processing rule; and the transaction output module acquires the predefined fields mapped by the output fields according to the output field relation table and outputs the predefined fields. The second conventional technique is applicable to only three transaction types of HTTP, TCP, UDP; the external input field, the internal field, the output field and the configurable transaction processing module are separated, so that the configuration process is complicated, and the application end is not favorable for quickly adapting to the change of the protocol.
The third conventional technique: a configurable network interface protocol adaptation engine based on a message template comprises an application layer protocol processor, a protocol configuration file parser, a network protocol processor and a dynamic proxy object generator, and is characterized in that: the application layer protocol processor is connected with the protocol configuration file parser, the application layer protocol processor is connected with the network protocol processor, and the application layer protocol processor is connected with the dynamic proxy object generator. The third conventional technique has drawbacks: the scheme does not disclose the difference between the network protocol processor and the application layer protocol processor in detail, and the proxy object is dynamically generated by using the local interface file of the remote service, so that the applicable scene has great limitation.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a method, a device and a system for analyzing rapid adaptation protocol change, which solve the problems.
The invention is realized by the following technical scheme:
a method for analyzing rapid adaptation protocol change comprises the following steps:
step A: generating a protocol configuration file and a scheduling configuration file according to a protocol specification of a service provider, and receiving an external message by a protocol analysis management module;
and B: the protocol analysis management module calls a protocol analysis module according to the protocol configuration file, extracts message contents from an external message according to the protocol configuration file to generate an internal message and sends the internal message to the service management module;
and C: and the service management module receives the internal message, schedules the internal message to a corresponding service module according to the content of the scheduling configuration file, and processes the content of the corresponding internal message.
Further, the service management module manages one or more service modules, and the service management module dynamically loads or unloads one or more service modules according to the content of the protocol configuration file.
Further, the protocol configuration files describe formats of multiple application layer protocols in a mode, the mode comprises a mode corresponding to a message format defined by a separator and a formatting text, and one protocol configuration file comprises descriptions of one or more message contents.
Further, the protocol parsing management module analyzes the external message according to the preset content in the protocol configuration file, the protocol parsing management module parses field content from the external message, and the protocol parsing management module generates the internal message according to the field content.
Further, the protocol parsing module parses the external message according to a protocol specification provided by the service, the protocol configuration file and the scheduling configuration file are formulated according to a protocol specification of the service provider, the protocol specification includes a conversion from a field in the external message to a field in the internal message, and the method includes the following parsing steps:
step 1: the service user receives the external message and identifies the message identifier of the external message;
step 2: and the service user identifies the message content according to the protocol configuration file matched with the external message identifier.
Further, the service management module schedules the internal message analyzed by the protocol analysis module to a service module corresponding to the content of the internal message, the service management module maintains a scheduling configuration file and/or a service module, the scheduling configuration file comprises a content identifier of the internal message and a mapping table of the service module, the maintenance mode comprises updating, loading or unloading, the service management module schedules the internal message to the corresponding service module according to the content of the mapping table in the scheduling configuration file, and the service module receives the content of the internal message, processes the internal message through service logic and uses the internal message.
Further, the protocol analysis management module manages a plurality of protocol analysis modules, and comprises the following processing steps after the protocol specification of the service provider is changed:
the protocol analysis management module adjusts or modifies the protocol configuration file to generate a new protocol configuration file according to the protocol change, the generation mode comprises the generation of a new protocol configuration file or the covering of an original protocol configuration file, the protocol analysis management module schedules external messages to the protocol analysis module according to the new protocol configuration file, the protocol analysis module generates new internal messages to be sent to the service management module after using one or more mapping tables according to the protocol change content, the service management module upgrades the service module according to the content of the new internal messages, and the upgraded service module processes the new internal messages.
Further, when a service user interfaces a plurality of service providers, one service provider includes a plurality of types of protocol providing modes, and generates a plurality of protocol configuration files for scheduling by the protocol parsing management module and a plurality of scheduling configuration files for scheduling by the service management module according to the number of the protocol providing modes and the number of the service providers.
Further, the system or the device for analyzing the rapid adaptation protocol change comprises the system or the device for realizing the method.
Further, the invention provides protocol alteration according to a service provider, and generates a protocol configuration file and a scheduling configuration file based on an altered protocol, the protocol analysis management module manages a plurality of protocol analysis modules, the protocol analysis management module converts an external message into an internal message according to the protocol configuration file, the conversion content comprises the format of the message, the service management module receives the internal message, the service management module manages a plurality of service modules, the service management module distributes the internal message to the service modules according to the scheduling configuration file, a service user extracts the content of the external message into the internal message according to a protocol specification provided by the service provider, and service logic related to the internal message is executed according to the result of the protocol analysis.
The following content is keyword analysis in the above technical scheme:
a service provider: a party providing a service according to a specific interface specification may also be understood as a party providing data according to a certain format. The interface specification and data format are collectively referred to as a protocol, and a service provider provides services according to a specific protocol.
The service user side: a party using a service of a service provider, or receiving data from a service provider. The service user needs to analyze the received data content according to the protocol agreed by both parties, and then executes the relevant service logic according to the analysis result.
External messages: a message received from a service provider.
Internal messaging: and after the external message is analyzed, forming the message in the internal format.
The invention has the following advantages and beneficial effects:
the invention separates the protocol analysis from the message processing, limits the influence of the protocol change on the protocol analysis and the message processing to the minimum range, can quickly adapt to the protocol change and improves the development efficiency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a flow chart of the present invention.
FIG. 2 is a block diagram of the present invention.
FIG. 3 is a flowchart illustrating the protocol analysis module according to the present invention.
Fig. 4 is a block diagram of a service management module of the present invention.
FIG. 5 is a diagram of a multi-protocol parsing module and a multi-protocol configuration file according to the present invention.
Fig. 6 is a diagram of a multi-service module and a multi-protocol configuration file according to the present invention.
FIG. 7 is a block diagram of an embodiment of the present invention.
Detailed Description
Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive changes, are within the scope of the present invention.
Example 1: as shown in fig. 2, the analysis system or apparatus for fast adapting to protocol change according to the present invention is applied to the case where the network protocol is kept stable, for example, the protocol is not limited to TCP, UDP, HTTP, etc., and the protocol change is performed, and includes the following modules:
protocol configuration file: the file describes the protocol format, and the protocol configuration file has different description modes according to different definition modes of the protocol. For example, content is transmitted in binary format, with different fields occupying different lengths, and examples of protocol profiles are:
| name of field | Length of occupied space (bytes) | Data type |
| Message identification | 2 | Numerical value |
| Object name | 2 | Text |
| Weight (D) | 1 | Numerical value |
| Exterior view | 1000 | Image (big object) |
Message formats defined in delimiter, formatted text (e.g. XML), then use the corresponding approach as a protocol configuration file, one of which may include a description of one or more messages.
A protocol analysis management module: and the device is responsible for analyzing the external message according to the content pre-configured in the protocol configuration file, and analyzing the content of each field from the message to form the internal message. The format of the internal message is determined according to the implementation of the scheme, for example, which programming language is used, whether processing speed is pursued first or self-interpretation of the message content is pursued, etc. If necessary, a protocol analysis module needs to be called to realize the conversion from the external message to the internal message.
A protocol analysis module: the conversion from the external field to the internal field, which may be required according to the protocol specification defined by the service provider, requires a complicated process. Therefore, if necessary, a complicated process of implementing the protocol specification in the protocol parsing module is required.
A service management module: and the system is responsible for scheduling the analyzed message content to the corresponding service module. The service management module maintains a scheduling configuration file (a mapping table of the message identifier and the service module), and the content is the corresponding relation between the message identifier and the service module. And after receiving the message analyzed by the protocol analysis module, the service management module transmits the internal message to the corresponding service module according to the content of the mapping table.
A service module: this module implements a business logic in which the received messages are used.
Example 2: after receiving the external message sent by the service provider, the service consumer analyzes the external message by the protocol parsing management module, as shown in fig. 3, the following is the analysis process:
the protocol analysis management module analyzes the external message and sends the external message to the protocol analysis module according to the judgment after analysis;
the protocol analysis module converts the external message into the internal message according to the specification;
the protocol analysis module sends the internal message to the service management module;
the service management module manages one or more service modules, and different service modules need to use different internal messages to complete different service functions. Through the business module with reasonable design, when the protocol of the service provider is changed, the change of the business module can be in the minimum range, for example, only one business module needs to be upgraded, the new protocol can be adapted, and other business modules do not need to be changed. The following is a schematic diagram of a service management module scheduling internal messages, one service module can process one or more messages, as shown in fig. 4;
and after the service module obtains the internal message of the preset message identifier, processing the internal message to complete the execution of the service logic.
Example 3: as shown in fig. 5, the configuration file is planned according to the overall situation of the service. For example: a subsystem uses a configuration file, and all message format definitions of the subsystem are contained in the configuration file; a profile may also be defined by one message, although if there are many messages, the number of profiles is large.
After the protocol analysis management module obtains the external message from the communication module, the protocol analysis management module firstly identifies the message identifier of the external message, which is usually an agreed behavior in a set of protocol system, namely, the message identifier is extracted according to a preset protocol, and then a corresponding protocol configuration file is found according to the message identifier for subsequent processing.
The advantage of the multi-protocol configuration file is that when there is an update to the protocol, only the relevant configuration file needs to be modified, and other non-involved configuration files do not need to be modified.
Similarly, the plurality of protocol analysis modules are used for rapidly adding a new protocol analysis module to process new messages when the messages are changed. In a preferred implementation, the protocol parsing modules correspond to the configuration files one to one.
Example 4: as shown in fig. 6, the solution is composed of a plurality of service modules, and the service management module is responsible for loading and unloading the service modules during operation. Each service module is responsible for processing one or the internal messages according to the requirements of the service plan. Preferably an internal message is processed in only one service module.
When the protocol is changed, only one relevant service module needs to be upgraded, and the upgraded service module is loaded by the service management module. And when the service management module receives the updated internal message, scheduling the updated internal message to the corresponding service module for processing.
The advantage of the multi-service module is that only the strongly relevant service module needs to be upgraded after the protocol is changed, and other service modules are not affected. And the analysis of the protocol is separated from the processing of the protocol, so that the service module is only responsible for the processing of the service logic as far as possible.
Example 5: the scheme of the multi-protocol analysis module is as follows: as shown in fig. 7, when a service user needs to interface with multiple service providers, or one service provider has multiple types of protocol providing manners, multiple protocol parsing modules may be designed, each for a different type of protocol. For example: a binary protocol parsing module, an XML format protocol parsing module, a delimiter text protocol parsing module, and the like.
In specific implementation, a protocol preliminary identification module can be added at the front end of each of the plurality of protocol analysis modules to identify the type of the external message, and the external message is scheduled to the corresponding protocol analysis module for processing according to the type of the external message.
Example 6: a parsing method for fast adapting protocol change, as shown in fig. 1, includes the following steps:
step A: generating a protocol configuration file and a scheduling configuration file according to a protocol specification of a service provider, and receiving an external message by a protocol analysis management module;
and B: the protocol analysis management module schedules a protocol analysis module according to the protocol configuration file, extracts message contents from an external message according to the protocol configuration file to generate an internal message and sends the internal message to the service management module;
and C: and the service management module receives the internal message and schedules the internal message to a corresponding service module according to the content of the scheduling configuration file, and the service module processes the content of the corresponding internal message.
Preferably, the service management module manages one or more service modules, and the service management module dynamically loads or unloads one or more service modules according to the content of the protocol configuration file; preferably, the protocol configuration files describe formats of multiple application layer protocols in a manner including a manner corresponding to delimiter or formatted text definition or formatted binary, and one protocol configuration file includes descriptions of one or more message contents; preferably, the protocol parsing management module analyzes the external message according to a preset content in the protocol configuration file, the protocol parsing management module parses a field content from the external message, and the protocol parsing management module generates the internal message according to the field content.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for analyzing a rapid adaptation protocol change is characterized by comprising the following steps:
step A: generating a protocol configuration file and a scheduling configuration file according to a protocol specification of a service provider, and receiving an external message by a protocol analysis management module;
and B: the protocol analysis management module calls a protocol analysis module according to the protocol configuration file, extracts message contents from an external message according to the protocol configuration file to generate an internal message and sends the internal message to the service management module;
and C: and the service management module receives the internal message, schedules the internal message to a corresponding service module according to the content of the scheduling configuration file, and processes the content of the corresponding internal message.
2. The method as claimed in claim 1, wherein the service management module manages one or more service modules, and the service management module dynamically loads or unloads one or more service modules according to the content of the protocol configuration file.
3. The parsing method of claim 1, wherein the protocol configuration file describes formats of multiple application layer protocols in a manner corresponding to a message format defined by a delimiter or a formatted text or a formatted binary, and one of the protocol configuration files comprises a description of one or more message contents.
4. The parsing method for adapting to protocol change quickly as claimed in claim 2, wherein the protocol parsing management module parses the external message according to the preset content in the protocol configuration file, the protocol parsing management module parses the field content from the external message, and the protocol parsing management module generates the internal message according to the field content.
5. The parsing method for fast adapting protocol change according to claim 2, wherein the protocol parsing module parses the external message according to a protocol specification of a service provider, the protocol configuration file and the scheduling configuration file are formulated according to the protocol specification of the service provider, the protocol specification includes a conversion rule from a field in the external message to a field in the internal message, and the parsing method comprises the following steps:
step 5.1: the service user receives the external message and identifies the message identifier of the external message;
step 5.2: and the service user selects the matched protocol configuration file according to the external message identifier and then identifies the message content.
6. The parsing method for fast adapting to protocol change as claimed in claim 2, wherein the service management module schedules the internal message parsed by the protocol parsing module to a service module corresponding to the content of the internal message, the service management module maintains a scheduling configuration file and/or a service module, the scheduling configuration file includes a content identifier of the internal message and a mapping table of the service module, the maintenance manner includes updating, loading or unloading, the service management module schedules the internal message to the corresponding service module according to the content of the mapping table in the scheduling configuration file, and the service module receives the content of the internal message and processes and uses the internal message through service logic.
7. The parsing method for fast adapting to protocol change as claimed in claim 6, wherein the protocol parsing management module manages a plurality of protocol parsing modules, comprising the processing steps after the protocol specification of the service provider is changed:
the protocol analysis management module adjusts or modifies the protocol configuration file to generate a new protocol configuration file according to the protocol specification change, the generation mode comprises the generation of a new protocol configuration file or the covering of an original protocol configuration file, the protocol analysis management module schedules external messages to the protocol analysis module according to the new protocol configuration file, the protocol analysis module generates new internal messages to be sent to the service management module after using one or more mapping tables according to the protocol change content, the service management module loads the service module according to the content of the new internal messages, and the loaded service module processes the new internal messages.
8. The parsing method for fast adapting to protocol change as claimed in claim 6, wherein when a service user interfaces with a plurality of service providers, one service provider includes a plurality of types of protocol providing manners, and generates a plurality of protocol configuration files for scheduling by the protocol parsing management module and a plurality of scheduling configuration files for scheduling by the service management module according to the number of the protocol providing manners and the number of the service providers.
9. A parsing system for fast adaptation protocol changes comprising a system for implementing the method of any of claims 1-8.
10. A parsing apparatus for fast adaptation protocol changes, comprising means for implementing the method of any of claims 1-8.
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