JPH10289179A - File transfer method, file transfer controller and recording medium recording file transfer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the utilization efficiency of a computer and to shorten line utilization time by continuing a processing as much as possible when line abnormality is generated and performing the executable processing. SOLUTION: A present system performs the pre-processings of code conversion and compression, etc., to a file 4 to be a transmission object, prepares a transmission image and transmits it to an opposite system 2 when a line state is normal. Also, when file transfer is impossible at the time of the line abnormality or the like, the pre-processing is performed to the file 4 to be the transmission object and the transmission image is prepared and preserved in a transmission image file 5. Then, when the file transfer becomes possible, the transmission image preserved in the transmission image file 5 is transmitted to the opposite system. Also, by setting the line state (normal, restored and abnormal) from an operation console 3, the transmission image is prepared and preserved in the transmission image file 5 and the transmission image preserved in the transmission image file 5 is transmitted to the opposite system 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a file transfer method and a file transfer control device for efficiently transferring a file between a plurality of computers, and a recording medium on which a file transfer program is recorded. The present invention relates to a file transfer method, a file transfer control device, and a recording medium on which a file transfer program is recorded, which can improve the use efficiency of a computer and reduce the line use time by continuing processing as much as possible even in the event of an abnormality. is there.

[0002]

2. Description of the Related Art When a file is transferred between a plurality of computers by communication, the character code used in the file is converted as needed to reduce the communication time, and then converted to an appropriate file. The data is compressed by a method, divided into appropriate transmission units, and transmitted with a header attached. When transmitting a plurality of files, the above-described processing is performed for each file, and the next file is transmitted after the processing is completed.

[0003]

In the above-described conventional file transfer processing, the processing of the next file is performed after the completion of the transmission processing of each file. Therefore, there are cases where a plurality of files are transmitted. If a line error occurs during file transmission, processing is suspended until the line is restored. For this reason, there is a problem that even if there are executable processes during the line interruption, these processes are also interrupted, and the utilization efficiency of the computer is reduced. The present invention has been made in consideration of the above circumstances, and its purpose is to improve the utilization efficiency of a computer by continuing processing as much as possible even when a line abnormality occurs, and to improve the efficiency of the line interruption. The purpose of this is to reduce the line use time by performing an executable process in advance.

[0004]

FIG. 1 is a diagram illustrating the principle of the present invention. In FIG. 1, reference numeral 1 denotes a local system for transmitting a file, and reference numeral 2 denotes a partner system. When the line state is normal, the local system 1
The preprocessing unit performs preprocessing such as code conversion, compression, and division into transmission units to create a transmission image, and transmits the transmission image to the partner system 2. When file transfer is not possible, for example, when a line is abnormal, the preprocessing unit performs preprocessing such as code conversion, compression, and division into transmission units to create a transmission image for the file 4 to be transmitted. Is stored in the transmission image file 5. Then, when file transfer becomes possible, such as when the line is restored, the transmission image stored in the transmission image file 5 is transmitted to the partner system. 3
Is a console, and the line status (normal, recovery,
Abnormal), whereby a transmission image is created and stored in the transmission image file 5 irrespective of the line state, or the transmission image stored in the transmission image file 5 is transmitted to the partner system. be able to.

As described above, in the present invention, the above-mentioned problem is solved as follows. (1) The file is transferred from the own system to the partner system as follows. -When the line status is normal, a transmission image is created from the file to be transmitted and transmitted to the partner system. -When file transfer is not possible due to a line error or the like, create a transmission image from the file to be transmitted and save it in the transmission image file. -When the file transfer becomes possible, such as when the line is restored, if the above-mentioned transmission image is stored in the transmission image file, the transmission image saved in the above transmission image file is sent to the remote system without performing the transmission image creation processing. Send. (2) In the above (1), the line state can be set irrespective of the actual line state, the line state is set to line abnormal, and a transmission image is created from a file to be transmitted when offline, and the transmission image is created. Save to a file. (3) In the above (2), the line state is set to recovery,
Read the transmission image from the transmission image file,
Send to partner system.

In the present invention, as described in the above (1),
If communication becomes impossible due to a line disconnection, etc., the transmission image creation process is performed without interruption and saved in the transmission image file until communication becomes possible, so use the computer effectively be able to. Further, since the transmission image is prepared by performing the pre-processing while the communication is not possible, the transmission can be performed without performing the pre-processing when the communication becomes possible, and the line use time can be reduced. Also, as described in (2) and (3) above, the line state can be set from the console regardless of the actual line state, and the line state is set to line abnormal, thereby creating a transmission image file. Since the transmission image is stored in the transmission image file and set for line recovery, the transmission image can be transmitted to the partner system, so that the line use time can be shortened and the line usage fee can be reduced.

[0007]

FIG. 2 is a diagram showing the configuration of a system according to an embodiment of the present invention. In FIG. 1, reference numeral 11 denotes a self system, which is connected to a console 12 via an interface I / F. Reference numeral 21 denotes a partner system, which transfers a file from the own system 11 to the partner system 21. The own system 11 is composed of a known computer such as a personal computer or a workstation, and the processing is executed by a program. That is,
The computer includes a CPU, a memory, a hard disk and various devices (an auxiliary storage device such as a CD-ROM, a modem for data communication using a telephone line, a LAN,
Interfaces for performing data communication using a network such as a network card) are connected to the bus. Then, the program is loaded into the memory from the various devices or from the hard disk, and causes the CPU to execute a file transfer function described later. 13 is a file group to be transmitted, 1
A transmission image file group 4 stores transmission images. The transmission image is
The transmission file is data converted into a format that can be transmitted by performing code conversion, compression, division into transmission units, and adding a transmission header, and the transmission image is transmitted to the partner system 21.

In the own system 11, reference numeral 11a denotes a transmission control unit, 11b denotes a transmission unit, and the transmission unit 11b includes a line abnormality monitoring unit 111 for monitoring a line abnormality. 11
c is a line state storage unit, and the line state storage unit 11c
The line status (standard, abnormal, or recovery) coming from the line abnormality monitoring unit 111 via the transmission control unit 11a is stored. Further, as described later, the line state can be set from the console 12 of the own system. 11d is a transmission file list storing file names to be transmitted, 1
Reference numeral 1e denotes a pre-processing unit. As described above, the pre-processing unit 11a performs code conversion, compression, division into transmission units, and addition of a transmission header to a transmission file to create a transmission image. 11f is a transmission control file storing a transmission control table T for managing a transmission state, and 11g is an I / O for inputting and outputting the above-mentioned transmission file and transmission image file.
O processing unit.

FIG. 3 is a diagram showing the contents of the transmission control table T. As shown in FIG. 3, the transmission control table T includes a "record number", a "transmission file name", and a "file state" (transmission state). (Transmitted or transmitted image or unprocessed) and “transmitted image file name” are stored. The “transmission image file name” is stored in the transmission image file name field only when the file state is “image”.

Next, the file transfer processing of the embodiment will be described. In the present embodiment, three types of operation modes are provided according to the line state (standard, line abnormality, line recovery).
The following processing is performed. (1) Standard mode (line normal mode) A file to be transmitted is read from the transmission file group 13 of the transfer source, pre-processing such as code conversion and compression is performed by the pre-processing unit 11e, and a transmission image is created. The transmission image is transmitted to the partner system 21 via the transmission unit 11 as it is (without being saved in a file). (2) Line abnormal mode A file to be transmitted is read from the transmission file group 13 of the transfer source, pre-processing such as code conversion and compression is performed by the pre-processing unit 11e, a transmission image is created, and the transmission image is transmitted. It is stored in the file group 13. At this time, the correspondence information between the transmission file name and the transmission image file name is stored in the transmission control table T described above. (3) Line restoration mode Referring to the transmission control table T, when a transmission image corresponding to a file to be transmitted is stored, the transmission image is read from the transmission image file group 14 and transmitted to the partner system 21. After the transmission, the transmitted transmission image file is deleted, and the correspondence information between the transmission file name and the transmission image file name in the transmission control table T is updated.

By writing the line status from the console 12 of the own system 11 to the line status storage unit 11c,
The processes (2) and (3) can be performed irrespective of the actual line condition. That is, as described in the above (2), the transmission image can be created and saved in the transmission image file by setting the line state to the line abnormality, and the line state can be restored by restoring the line state. The transmission image file created as described in (3) can be transmitted. As a result, it is possible to effectively use the line time.

4 and 5 are flowcharts showing a file transfer process according to an embodiment of the present invention, FIG. 6 is a flowchart showing a transmission image file creation process, and FIG. 7 is a flowchart showing a transmission image file transmission process.
This embodiment will be described with reference to FIGS. In step S1 of FIG. 4, the line status is input from the console 12.
Here, as described above, when performing the processing of the above (2) and (3) irrespective of the actual line state,
Enter "Abnormal" or "Recovery". Otherwise, enter "Standard". Note that “standard” may be set as a default value, and if there is no input, “standard” may be set. Next, step S2
In the transmission control section 11a, the transmission file list 11
Read d. Also, the number of transmission files is set to N and i is set to 0.

In step S3, it is checked whether or not the line state is "restored". If the line state is “standard” or “abnormal”, the procedure goes to step S4, where the transmission control unit 11a initializes the transmission control table T. And
The transmission file name is set from the transmission file list in the transmission file name field of the i-th (first i = 0) record of the transmission control table T, and the file status field of the i-th record of the transmission control table T is set. To "unprocessed". If the line state is “restored”, the transmission control table T is stored in the transmission control file 11f.
(Step S5).

Next, the process proceeds to step S6, where the transmission control unit 11
a checks the “file status” of the i-th record in the transmission control table T. If the file status is “image”, the transmission image has already been created for the transmission file to be transferred, so the process proceeds to step S13, and the transmission image transmission processing (details will be described later with reference to FIG. 7) is performed. , And goes to step S18 in FIG. If the file status is “sent”, nothing is performed without performing any processing.
Go to step S18. If the file status is “unprocessed”, the process proceeds to step S7, where the transmission control unit 11a
The transmission file name is read from the transmission file name field of the i-th record of the transmission control table T and stored in the work area File. Next, in step S8, the line state of the line state storage unit 11c is checked.

If the line state is abnormal, step S1
2, the transmission image file creation process (the details will be described later with reference to FIG. 6) is performed, and the process proceeds to step S18 in FIG. If the line state is normal or restored, the process goes to step S9, where the transmission control unit 11a reads the transmission unit from the transmission file of the transmission file name stored in the work area File, and in step S10, the preprocessing unit 11e
Performs pre-transmission processing. Then, in step S11, the pre-processed transmission image is transmitted from the transmission unit 11b to the partner system 21.

Next, the process proceeds to step S14 in FIG. 5, and the transmission control unit 11a checks the line status. If the line state is abnormal, in step S17, the line state of the line state storage unit 11c is set to abnormal line, and step S1 is executed.
9 (in this case, since the transmission of the i-th transmission file has not been completed normally,
= I + 1). If the line status is not abnormal,
In step S15, it is checked whether the transmission file of the file has been processed to the end. If the processing of the transmission file has not been completed, the process returns to step S9 in FIG. 4, and the processing from step S9 to S15 is repeated. .

When the transmission process is completed to the end of the transmission file, the process goes to step S16, where the transmission control unit 1
1a sets the file status field of the i-th record of the transmission control table T to "transmitted" and sets
Go to 8. In step S18, i = i + 1 is set,
In step S19, it is determined whether i is smaller than the number N of transmission files. If i is smaller than the number N of transmission files, the process returns to step S6 in FIG. 4 and the above processing is repeated. i
Has reached the number N of transmission files, the process goes to step S20, where the transmission control unit 11a checks the line state by the line abnormality monitoring unit 111, and ends the processing if the line state is not abnormal. If the line status is abnormal, the procedure goes to step S21, where the transmission control table T is stored in the transmission control file 11f to save the transmission status. In addition, even when the line state is not abnormal, the transmission control table T may be stored in the transmission control file 11f so that the transmission state can be confirmed.

FIG. 6 is a flowchart showing the transmission image file creation process in step S12 in FIG. The transmission file creation processing is performed as follows. In step R1, the transmission control unit 11a determines a transmission image file name and stores it in the work area File.IMG. Next, in step R2, the transmission image file name stored in the work area File.IMG is stored in the transmission image file name field of the i-th record of the transmission control table T. In step R3, the transmission control unit 1
1a reads a transmission file name from the work area File, and reads a transmission unit from the transmission file.

Then, in step R4, the preprocessing section 11e performs preprocessing of the transmission file, and stores the preprocessed transmission image data in the transmission image file having the transmission image file name stored in the work area File.IMG. to add. In step R6, it is checked whether the transmission file of the File has been processed to the end. If the transmission image file creation processing has not been completed, the process returns to step R3, and the processing from step R3 to R6 is repeated. When the transmission image file creation processing is completed to the end of the transmission file, the process goes to step R7,
The file status in the file status field of the i-th record in the transmission control table T is set to "image", and the process ends.

FIG. 7 is a flowchart showing the transmission image file transmission process in step S13 of FIG. The transmission image file transmission processing is performed as follows. In step T1, the transmission control unit 11a stores the transmission image file name of the i-th record in the transmission control table T in the work area File.IMG, and in step T2, the transmission image file stored in the work area File.IMG The transmission image file having the file name is read in the transmission unit, and transmitted from the transmission unit 11b to the partner system 12. Next, the process proceeds to step T4, where the transmission control unit 11a checks the line status. If the line status is abnormal, the line status of the line status storage unit 11c is set to abnormal in step T8, and the process ends.

If the line status is not abnormal, the process goes to step T5 to check whether the transmission image file of the above-mentioned File.IMG has been processed to the end. If the transmission of the transmission image file has not been completed, the process goes to step T5. Return to T2,
The processing from steps T2 to T7 is repeated. When the transmission processing is completed to the end of the transmission image file, the process goes to step T6, where the transmitted transmission image file of File.IMG is deleted, and in step T7, the file status of the i-th record of the transmission control table T is changed. The field is set to "sent" and the process ends.

[0022]

As described above, in the present invention,
The following effects can be obtained. (1) If communication becomes impossible due to line disconnection,
Until communication becomes possible, transmission image creation processing is performed without interrupting the work and the image is stored in the transmission image file, so that the computer can be used effectively. Further, since the transmission image is prepared by performing the pre-processing while the communication is not possible, the transmission can be performed without performing the pre-processing when the communication becomes possible, and the line use time can be reduced. (2) From a console or the like, the line state can be set independently of the actual line state, and by setting the line state to line abnormal, a transmission image file is created and saved in the transmission image file. By setting the recovery, the transmission image can be transmitted to the partner system, so that the line use time can be shortened and the line use fee can be saved.

[Brief description of the drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a diagram illustrating a configuration of a system according to an embodiment of the present invention.

FIG. 3 is a diagram illustrating a transmission control table according to the embodiment of the present invention.

FIG. 4 is a flowchart illustrating a process according to the embodiment of the present invention.

FIG. 5 is a flowchart (continued) showing the processing of the embodiment of the present invention.

FIG. 6 is a flowchart showing a transmission image file creation process in FIG. 4;

FIG. 7 is a flowchart showing a transmission image file transmission process in FIG. 4;

[Explanation of symbols]

 Reference Signs List 1 own system 2 partner system 3 operation console 4 transmission file 4 5 transmission image file 11 own system 12 operation console 21 partner system 13 transmission file group 14 transmission image file group 11a transmission control unit 11b transmission unit 111 line abnormality monitoring unit 11c line state Storage unit 11d Transmission file list 11e Preprocessing unit 11f Transmission control file 11g I / O processing unit

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akira Hayakawa 98, Unoki-nu, Unoki-cho, Kawakita-gun, Ishikawa Pref.

Claims (8)

[Claims] 1. A file transfer method for transferring a file from a local system to a partner system, wherein when a file transfer is not possible, a transmission image is created from a file to be transmitted without interrupting operations. When the transmission image is stored in the transmission image file, the transmission image stored in the transmission image file is transmitted to the partner system when the file is transmitted and the file transfer is enabled. File transfer method. 2. A file transfer method for transferring a file from a self-system to a partner system, wherein when a line status is normal, a transmission image is created from a file to be transmitted and transmitted to the partner system, and a line error occurs. In the case of, a transmission image is created from the transmission target file and saved in the transmission image file.When the transmission image is stored in the transmission image file when the line is restored, the transmission image creation processing is not performed. A file transfer method comprising transmitting a transmission image stored in a transmission image file to a partner system. 3. A line state can be set irrespective of an actual line state, a line state is set to a line abnormality, a transmission image is created from a file to be transmitted when offline, and saved in a transmission image file. 3. The file transfer method according to claim 2, wherein: 4. The file transfer method according to claim 3, wherein the line state is set to recovery, a transmission image is read from the transmission image file, and transmitted to the partner system. 5. A transmission control unit for controlling file transfer to a partner system; a preprocessing unit for creating a transmission image from a file to be transmitted; a transmission unit for transmitting the transmission image to the partner system; A transmission image file for storing an image, and a line abnormality monitoring unit for monitoring a line state, wherein the transmission control unit creates a transmission image from a transmission target file when the line is normal, and transmits the transmission image via the transmission unit. The transmission image is transmitted to the partner system. When the line is abnormal, the preprocessing unit creates a transmission image from the file to be transmitted and saves it in the transmission image file. When the line is restored, the transmission image is stored in the transmission image file. And transmitting the transmission image to the partner system via the transmission unit when is stored. Airu transfer control device. 6. An operation console for setting a line status, wherein when the line status is set to line abnormal from the operation console,
The transmission control unit, in the preprocessing unit, creates a transmission image from the transmission file, saves the transmission image in the transmission image file, and sets the line state to line restoration from the console, the transmission control unit 6. The file transfer control device according to claim 5, wherein a transmission image is read from the communication device and transmitted to a partner system via a transmission unit. 7. A recording medium for recording a file transfer program for transferring a file from a self-system constituted by a computer to a partner system, wherein the file transfer program performs a task when file transfer is impossible. Creates a transmission image from the file to be transmitted without interruption, saves it in the transmission image file, and when the file transfer becomes possible, when the transmission image is stored in the transmission image file, the transmission image A computer-readable recording medium on which a file transfer program is recorded, wherein the transmission image stored in the file is transmitted to a partner system. 8. A recording medium recording a file transfer program for transferring a file from a self system composed of a computer to a partner system, wherein the file transfer program is a transmission target when a line status is normal. Create a transmission image from the file to be transmitted and send it to the other system.If there is a line error, create a transmission image from the file to be transmitted and save it in the transmission image file.When the line is restored, send the above to the transmission image file A computer-readable recording medium storing a file transfer program for transmitting a transmission image stored in the transmission image file to a partner system without performing a transmission image creation process when the image is stored. .