KR20010064804A - Method for transmitting enormous message in internet edi system - Google Patents

Abstract

PURPOSE: A method for transmitting mass messages in an Internet electronic document exchange system is provided to supply the consistency of information between a client and a server on an error condition by applying a request/response mechanism between the client and the server for transmitting a great amount of messages. CONSTITUTION: A message information file catalog and a server information file are inputted as an intermediate variable from a client application program(301). It is checked whether an error is generated in the server information file(302). In case that the error is generated, a message transmission process of a client is abnormally terminated(303). In case that the error isn't generated, a type-3 packet generated from the client is generated and transmitted(304). A type-2 packet for virtually connecting to a message transmission module of a server is generated and transmitted(305). It is checked whether an error on a communication is generated in case that the packet is transmitted(306). In case that the error is generated, the message transmission process of the client is abnormally terminated(307). In case that the error isn't generated, the type-3 packet is generated and transmitted(308).

Description

How to send a large amount of messages in an Internet electronic document exchange system {METHOD FOR TRANSMITTING ENORMOUS MESSAGE IN INTERNET EDI SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transmitting a large amount of messages in an electronic data interchange (EDI) system and a computer readable recording medium recording a program for realizing the method. A method of transmitting a large amount of messages for providing a transmission protocol for simultaneous transmission to multiple subscribers, and a computer-readable recording medium having recorded thereon a program for realizing the method.

In general, the Internet electronic document exchange system is to provide a transmission protocol for when a user wants to send a large number of messages to multiple subscribers at the same time. Ultimately, a reliable transmission service in a communication terminal and an effective transmission process for transmitted messages are performed. Can be classified as Here, the related arts include a reliable transfer service element (RTSE) or an X.400-based recommendation technique existing on the seventh layer of Open System Interconnection (OSI).

In the case of the Reliable Transfer service element (RTSE), a user using a personal computer (PC) is required to use it because the user needs to send a message through the OSI communication stack and the server must handle the message transmission according to the OSI communication stack. There was a significant burden. In the conventional X.435-based electronic document exchange system, the system design direction is shifting to the Internet electronic document exchange system.

Therefore, the present invention provides a user module that is easy to use for the user and accordingly implements only the core technology of the electronic document exchange system in the server, while reducing the load on the server system, there is a need for a method that can respond quickly to the needs of the user.

SUMMARY OF THE INVENTION The present invention has been made in order to meet the above-described demands, and provides a transmission protocol for providing a transmission protocol when a user using an Internet electronic document exchange system wants to simultaneously send a large number of messages to multiple subscribers. It is an object of the present invention to provide a computer-readable recording medium recording a message transmission method and a program for realizing the method.

1 is an exemplary configuration diagram of an Internet electronic document exchange system to which the present invention is applied.

2 is an explanatory diagram showing a module between a client and a server for mass message transmission processing according to the present invention;

3A to 3E are flowcharts illustrating an embodiment of a method for transmitting a large amount of subscriber-side messages in an Internet electronic document exchange system according to the present invention.

4A through 4D are flowcharts illustrating an exemplary embodiment of a method for transmitting a large amount of messages on a server side in an Internet electronic document exchange system according to the present invention.

* Explanation of symbols for the main parts of the drawings

11: Internet EDI Server 12: Firewall

13: switching hub 14: hub

15: terminal 16: router

17: general users 18: bulk users

In order to achieve the above object, the present invention provides a method for transmitting a large amount of EDI messages to a plurality of subscribers in an Internet electronic document exchange system, wherein a server accesses a dedicated service access point through a daemon process. Opening an access point to establish a virtual connection with the client; A second step of calling a message transmission module for each connection request of the client; A third step of establishing a session with the database according to a database connection request of the client; A fourth step of extracting information necessary for the transmission process according to the message transmission request of the client, generating an information file necessary for the message transmission processing, and notifying the client of the result of the generation; And in response to the client's request for each message unit, the message transmission module extracts information necessary for the transmission process from the database, performs a transmission operation for each unit message, and then reflects the result of the transmission operation in the database. And a fifth step of notifying the client of the work result.

In addition, the present invention, the Internet electronic document exchange system having a processor, the server opens a dedicated service access point (Service Access Point) through the daemon process to establish a virtual connection with the client; A second function of invoking a message sending module for each connection request of the client; A third function of establishing a session with the database according to a database connection request of the client; A fourth function of extracting information necessary for a transmission process, generating an information file necessary for a message transmission process, and notifying the client of the generation result according to the message transmission request of the client; And in response to the client's request for each message unit, the message transmission module extracts information necessary for the transmission process from the database, performs a transmission operation for each unit message, and then reflects the result of the transmission operation in the database. A computer readable recording medium having recorded thereon a program for realizing a fifth function of notifying a client of a work result is provided.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration diagram of an Internet electronic document exchange system to which the present invention is applied.

As shown in Fig. 1, an Internet EDI server 11 equipped with a communication daemon for processing a large amount of messages and a message sending server module and an illegal subscriber are installed to control access to the Internet EDI system on a network. A firewall 12, a switching hub 13 connected to the Internet EDI server 11 and the firewall 12, a hub 14 for connecting to the terminal 15, Terminal 15 of operators operating the Internet EDI system, router 16 connecting the firewall 12 with the Internet and the Public Switched Data Network (PSDN), and subscriber transmission to send a large amount of messages from the server. It consists of a general user and a mass user 17 and 18 on which a processing module is mounted.

First, the subscriber sets the communication environment of the subscriber to the TCP / P environment in order to receive any message from the server. After the environment is set, the user drives the subscriber transmission module proposed by the present invention to send a large amount of messages. The driven module establishes a virtual connection with the communication daemon process installed in the Internet EDI system via the router 16 and the firewall 12, and then sends a message transmission server module call request to handle the service request of the subscriber. When transmitting to the process, the communication daemon process that recognizes it calls the message sending server module with the appropriate process ID to perform a large amount of message sending processing between the subscriber and the server.

In addition, in the present invention, since the transmission control protocol / Internet protocol (TCP / IP) network is premised, the subscriber is an Internet electronic document exchange system in which a document transmission server module is executed using X.25 or PSTN (Public Switched Telephony Network). If you want to connect, provide TCP / IP service in basic network device.

2 is an explanatory diagram showing a module between a client and a server for a large amount of message transmission processing according to the present invention.

As shown in Fig. 2, the client 21 is composed of an application program and a client message transmission module for processing the received message according to the user's request. The server 22 is composed of a transmission daemon process that handles the virtual connection request of the client, a server message transmission module, a transmission database that records details of the transmitted document, a document log database, and a user database.

That is, the present invention is designed to provide a reliable transmission service for users who want to transmit a large amount of messages in a TCP / IP environment, and is configured in a client / server manner. The client message sending module is driven by an application program developed by users, and the driving method is provided by the client message sending module. The server message sending module is run by a daemon process that manages message sending. In the server daemon process, one dedicated service access point is opened to handle connection requests from clients. Invoke the message transmission process to perform the task related to message transmission.

When the virtual connection between the client and the server is successfully made by the daemon process of the server, the message sending module of the client generates a database connection request packet and transmits the message to the server. The session with the database set up at this stage is closed only after normal operation of sending a large amount of messages to the client. The reason for this is that designing a connection / closing session with a database for each message to be sent is severe, causing a heavy load on the server system and delaying response processing for a user's transmission processing request.

After the session with the database is connected, the message sending module of the client requests the message sending module of the server for each message unit.

In order to process the message transmission request of the client, the message transmission module of the server analyzes the received packet, extracts the necessary items only in the normal case, and generates a file for message transmission processing, that is, extracts necessary information from the database. When sending a message by generating a unique identifier that can identify the message in the server, the server fails to obtain the message's unique identifier or an error occurs due to incorrect information extracted from the received packet. Generates an appropriate error packet and sends it to the client's message sending module. The client's message sending module stops the message sending task and prepares to send the next message or, in the case of a fatal error, sends the client's message. And to terminate abnormally.

When the nth message sending operation is successfully performed, the server generates a packet about the result and sends it to the message sending module of the client, and sends the specific message between the client and the server by reflecting the result in a database managed by the server. Ensure consistency of related information.

Here, a packet structure diagram showing a large amount of message transmission processing is as follows [Table 1] to [Table 7].

Here, [Table 1] is a type-3 packet structure diagram generated by a client to establish a connection with a database managed by a server.

[Table 2] is a type-4 packet structure diagram for generating a message transmission request from a client to a server.

[Table 3] shows a Type-5 packet structure generated by the client to request termination of connection with the database from the message transmission module of the server.

Here, [Table 4] is a type-6 packet structure diagram generated when the message transmission module of the server reflects transmission information of an arbitrary message in a related database.

Here, [Table 5] is a Type-7 packet structure diagram generated when a message transmission module of a server successfully delivers an arbitrary message to an intended recipient.

Here, [Table 6] is a type-8 packet structure generated when the information file is successfully generated by the message transmission module of the server.

Here, [Table 7] is a type-9 packet structure diagram generated when a message transmission module of the server fails to generate a unique number for a message.

3A to 3E are flowcharts illustrating an embodiment of a method for transmitting a large amount of messages on a subscriber side in an Internet electronic document exchange system according to the present invention.

As shown in Figs. 3A to 3E, first, a message information file list and a server information file are inputted from a client application program as parameters to send a large amount of messages to subscribers of the Internet electronic document exchange system (301). It is checked whether an error has occurred in the file (302).

As a result of the check, if the message transmission is failed, the message transmission process is delivered to the client application, and the message transmission process of the client is abnormally terminated (303). After generating and transmitting the -3 packet (304), a type-2 packet for virtual connection with the message transmission module of the server is generated and transmitted (305).

Then, it is checked whether a communication error has occurred in packet transmission (306).

As a result of the check, if the message transmission to the client application has failed, the message transmission process is abnormally terminated (307). If not, the client generates a connection to establish a session with the database. 3 After generating and transmitting the packet (308), it is determined whether a communication error has occurred during packet transmission (309).

As a result of the determination, the message transmission process is delivered to the client application if it has failed, and the message transmission process of the client is abnormally terminated (310). If it does not occur, any packet is received from the server (311) to connect with the database. Analyze (312).

As a result of the analysis, if the connection is not established, the message transmission to the client application is failed and the message transmission process of the client is abnormally terminated (313), and the information is extracted from the Nth message information pie to transmit the message from the client to the server. A type-4 packet is generated for sending (314).

The client then checks whether the type-4 packet generated by the client to send the message transmission request to the server was successfully generated (315).

As a result of the check, if it is not generated, the Nth message transmission result is recorded as a failure (316), and it is checked whether a message to be transmitted remains (317).

As a result of the check, if the remaining information is extracted from the N-th message information pie, the method proceeds to step 314 of generating a type-4 packet generated by the client to send a message transmission request to the server. The type 5 packet is generated and transmitted to the sending module to request the termination of the connection with the database (318), the message transmission result is notified to the application program (319), and the message transmission process is normally terminated (320).

As a result of the check, the client transmits a type-4 packet generated by the client to send a message transmission request to the server (321), and waits for a response packet for the type-4 from the server (322).

On the other hand, it is analyzed whether the message transmission module of the server receives the type-8 packet generated when the information file is successfully generated (323).

As a result of the analysis, if it is not received, the Nth message transmission result is recorded as a failure (324), and the process proceeds to step (317) for checking whether there is a message to be transmitted.

As a result of the analysis, if received, the message and the related documents are transmitted (325), and the message and the documents are successfully transmitted (326).

As a result of the check, if it is not transmitted, the Nth message transmission result is recorded as a failure (327), and the process proceeds to step (317) of checking whether there are remaining messages to be transmitted.

As a result, if it is transmitted, it receives an arbitrary packet from the server (328) and checks whether it receives a type-6 packet generated when the message transmission module of the server successfully reflects the transmission information of the arbitrary message in the relevant database ( 329).

If the result of the check is not received, the N-th message transmission result is recorded as a failure (330), and the process proceeds to step (317) of checking whether there is a message to be transmitted.

As a result of the check, if received, an arbitrary packet is received from the server (331), and a message transmission module of the server confirms whether a type-7 packet generated when a random message is successfully delivered to the intended recipient (332).

As a result of the check, if it is not received, the Nth message transmission result is recorded as a failure (333), and the process proceeds to step (317) of checking whether there are remaining messages to be transmitted.

As a result of the check, if the message has been received, the message transmission processing has been recorded and managed (334), and the process proceeds to step 317 for checking whether there is a message to be transmitted.

4A to 4D are flowcharts illustrating an embodiment of a method for transmitting a large amount of messages in a server side in an Internet electronic document exchange system according to the present invention.

As shown in Figs. 4A to 4D, a transmitting daemon process first receives and processes a Type-1 packet from a client (401), and the transmitting daemon process receives a Type-2 packet and invokes a message transmitting process (402). ).

Subsequently, the server receives an arbitrary packet from the client (403) and checks whether it is a type-3 packet generated by the client to establish a session with a database managed by the server (404).

As a result of the check, if an error packet is generated and transmitted (405), if a packet is requested for session connection with the database (406), it is checked whether the connection with the database has been successfully established (407).

As a result of the check, otherwise, an error packet is generated and transmitted (408), and if so, a packet for notifying that the connection with the database has been successfully generated is generated and transmitted (409).

Then, it receives 410 an arbitrary packet from the client and checks whether it has received the type-4 packet generated by the client to send a message transmission request to the server (411).

As a result of the check, if it is not received, the transmission result of the corresponding message is treated as a failure (412), after receiving a random packet from the client (413), the client is generated to request the termination of connection with the database to the message transmission module of the server. If the received type-5 packet is received and analyzed (414), the connection with the database is terminated (415), the message transmission process is terminated normally (416), and if not received, the client sends a message transmission request to the server. In step 411, a check is made to see if a received Type-4 packet has been received.

As a result of the check, if received, the client extracts the information necessary for the message transmission processing from the type-4 packet generated by the client to send the message transmission request to the server, and generates the information file necessary for the message transmission processing (417). Verify that it was created (418).

If the result of the check or the transmission of the message is treated as a failure (419), after generating and transmitting an error packet (420), the process proceeds to step 413 of receiving a random packet from the client, and if so, the message of the server. After generating and transmitting the type-8 packet generated when the information file is successfully generated by the transmitting module (421), documents related to the message are received (422).

Next, it is checked whether the reception was successful (423).

Generates and transmits a check result or an error packet (424), treats the result of the message transmission as a failure (425), and if so, extracts information necessary for message transmission processing from the database (426) to generate a message unique number. After that (427) it is determined whether the message unique number (UNIQUE) is unique (428).

As a result of the determination, if the message transmission module of the server fails to generate a unique number for the message, it generates and transmits a type-9 packet that is generated (429), and processes the transmission result of the corresponding message as a failure (430), and the only ( UNIQUE) generates the type-6 packet generated when the transmission processing status of the corresponding message is reflected in the database (431) and the message transmission module of the server successfully reflects the transmission information of any message in the relevant database. Transmit (432).

On the other hand, it is analyzed whether the message is correctly delivered to the intended recipient (433).

As a result of the analysis, or otherwise generates and transmits an error packet (434) and treats the result of the transmission of the message as a failure (435), if it is delivered when the message transmission module of the server successfully delivered any message to the intended recipient A type-7 packet is generated and transmitted (436).

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

The present invention as described above, by applying a request and response mechanism between the client / server to send a reliable mass message, the message on the communication or the server according to the transmission processing status of each message or the mass message transmission There is an effect that can provide the consistency of the information between the client and the server in the error situation occurring in the transmission process.

In addition, since the present invention attempts to invent the basic network structure of the user on the premise of a TCP / IP network, the client module of the present invention can be easily mounted and used by the users, and the user program is simplified by simplifying the driving method by the user application program. In addition to facilitating interfacing with the service, a separate service access point is managed by the message transmission daemon process, so that the protocol proposed by the present invention can facilitate interworking with other electronic document exchange systems. It works.

Claims (6)

In a method of transmitting a large amount of Internet electronic document exchange (EDI) messages to multiple subscribers in an Internet electronic document exchange system, A first step of the server opening a dedicated service access point through a daemon process to establish a virtual connection with the client; A second step of calling a message transmission module for each connection request of the client; A third step of establishing a session with the database according to a database connection request of the client; A fourth step of extracting information necessary for a transmission process according to the message transmission request of the client, generating an information file required for the message transmission process, and notifying the client of the generation result; And According to the client's request for transmission of each message unit, the message transmission module extracts information necessary for transmission processing from the database, performs a transmission operation for each unit message, and then reflects the result of the transmission operation in the database. A fifth step of notifying the client of a result Mass message transmission method in the Internet electronic document exchange system comprising a. The method of claim 1, The database, In order to reduce the load on the system, a mass message transmission method in the Internet electronic document exchange system, characterized in that the closing (Close) after the message transmission operation of the client. The method according to claim 1 or 2, The third step, A sixth step of the sending daemon process searching for file information from the client and establishing a session with a database managed by a server; A seventh step of confirming that the connection with the database was established successfully; And As a result of the checking of the seventh step, an eighth step of generating and transmitting an error packet if it is successful, and notifying the client that it is connected to the database if it fails. Mass message transmission method in the Internet electronic document exchange system comprising a. The method of claim 3, wherein The fourth step, A ninth step of receiving an arbitrary packet from the client and extracting information necessary for message transmission processing to generate an information file; A tenth step of confirming whether the information file was successfully created; An eleventh step of generating a packet generated when the information file is successfully generated by the message transmission module of the server, and notifying the client to transmit the message and related documents; And As a result of the checking of the eleventh step, if not successfully generated, the twelfth step of notifying the client by treating the result of the transmission as a failure as a result; Mass message transmission method in the Internet electronic document exchange system comprising a. The method of claim 4, wherein The fifth step, A thirteenth step of extracting information necessary for the corresponding message transmission processing from the previously connected database and generating a unique number used to identify the corresponding message in the server; A fourteenth step of checking whether the message unique number is UNIQUE; A fifteenth step of notifying the client that the transmission processing for the corresponding message has failed, if not unique, and notifying the client by reflecting the transmission processing for the corresponding message in a database; A sixteenth step of confirming in the database that the message has been delivered correctly to the intended recipient's inbox; And As a result of the check in the 16th step, if the delivery is not successful, the client is notified that the transmission process has failed. If the delivery is successful, a packet for delivering the message to the intended recipient's inbox is successfully generated. 17th step to notify completion Mass message transmission method in the Internet electronic document exchange system comprising a. In the Internet electronic document exchange system equipped with a processor, A first function of the server opening a dedicated service access point through a daemon process to establish a virtual connection with the client; A second function of invoking a message sending module for each connection request of the client; A third function of establishing a session with the database according to a database connection request of the client; A fourth function of extracting information necessary for a transmission process, generating an information file necessary for a message transmission process, and notifying the client of the generation result according to the message transmission request of the client; And According to the client's request for transmission of each message unit, the message transmission module extracts information necessary for transmission processing from the database, performs a transmission operation for each unit message, and then reflects the result of the transmission operation in the database. A fifth function of notifying the client of the result A computer-readable recording medium having recorded thereon a program for realizing this.