JPH04245341A - Information processor - Google Patents

Abstract

PURPOSE:To handle data without being conscious of a difference in file form even when the file form of data to be handled by an application program is different from the file form of data stored in a storage device. CONSTITUTION:A file form recognition part 12 confirms whether or not the file form of the data handled by the application program 10 is matched with the file form of the data in a file 20. When they are different from each other, an information processing part 11 outputs a change request to a file access form changing part 13. The file access from changing part 13 changes the file form of the data from the file 20 into the file form handled by the application program 10 by the change request.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus, and more particularly to a file access method.

0002

[Prior Art] Conventionally, in an information processing device, when the file format of data handled by an application program and the file format of data stored in a storage device are different, the data in the storage device is accessed from the application program. I couldn't.

[0003] In such conventional information processing devices, if the file format of data handled by an application program differs from the file format of data stored in a storage device, the data cannot be accessed.
Either prepare another application program that handles file format data stored on the storage device, or
Another disadvantage is that data in a file format handled by an application program must be prepared in advance and stored in a storage device.

0004

[Object of the Invention] The present invention has been made in order to eliminate the drawbacks of the conventional ones as described above, and the file format of data handled by an application program is different from the file format of data stored in a storage device. The object of the present invention is to provide an information processing device that can handle data without being aware of the differences.

[0005]

SUMMARY OF THE INVENTION An information processing apparatus according to the present invention includes a storage device that stores data in a preset file format, and an application program that requests processing using the data. confirmation means for confirming whether the file format of data handled by an application program is the same as the file format of data in the storage device; The present invention is characterized in that it includes a file format changing means for changing the file format of data to be sent and received.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In the figure, an information processing unit 11 of an information processing device 1 performs processing in accordance with a processing request from an application program 10 input via a signal line 101. At this time, the information processing unit 11 uses the contents of the file 20 stored in the storage device 2 in response to a processing request from the application program 10.
A file format confirmation request for confirming whether the file format handled by the application program 10 and the file format of the file 20 are the same is output to the file format confirmation section 12 via the signal line 102 .

[0008] The file format confirmation unit 12 is the information processing unit 11
When a file format confirmation request is input from
2, the file format handled by the application program 10 sent from the information processing unit 11 via the signal line 103, and the file 20 read from the storage device 2 via the signal line 103.
Compare the file formats. File format confirmation section 12
The comparison result is sent to the information processing unit 1 via the signal line 102.
Send to 1.

If the comparison result sent from the file format confirmation unit 12 via the signal line 102 indicates that the file formats are the same, the information processing unit 11 issues file access to the file access unit 14 via the signal line 104. Output the request. Further, if the comparison result does not indicate that the file formats are the same, the information processing unit 11 outputs a change request to the file access format changing unit 13 via the signal line 105 in order to change the file format of the file 20.

When the file access format changing unit 13 receives a change request from the information processing unit 11 via the signal line 105, the file access format changing unit 13 changes the file access format to the file access unit 1 via the signal line 106.
The access request is output to 4. When one area of data read from the file 20 in response to this access request is passed from the file access unit 14 via the signal line 106, the file access format change unit 13 requests the information processing unit 11 to change the file format of the data. Change file format. The data whose file format has been changed is temporarily stored in the file access format changing section 13, and is sent to the information processing section 11 via the signal line 105.

[0011]Furthermore, when the file access format changing unit 13 receives processed data from the information processing unit 11 via the signal line 105, it changes the file format of the data to the file format of the file 20. line 106
The data is sent to the file access unit 14 via.

[0012] Here, the file access format changing unit 13
All file formats handled by the information processing device 1 are stored in advance, and the file access format changing unit 13 connects or divides data based on this information.
Alternatively, change the file format by converting the code of the data.

The file access section 14 has signal lines 104,
The file 20 stored in the storage device 2 is accessed or released in accordance with an access request from the information processing section 11 or the file access format changing section 13 that is input via the storage device 106 .

FIG. 2 is a diagram showing the structure of the file 20 in FIG. 1. In the figure, a file 20 is composed of file management information 20a and a data section 20b. The file management information 20a stores information regarding the file 20, such as the order and data length of data in each record, or file format information such as the code used in each record. Furthermore, data handled by the application program 10 is stored in the data section 20b.

FIG. 3 is a flowchart showing the checking operation of the file format checking section 12 of FIG. 1, and FIGS. 4 and 5 are flowcharts showing the changing operation of the file access format changing section 13 of FIG. 4 shows the changing operation of the file access format changing unit 13 when reading data from the storage device 2, and FIG. 5 shows the changing operation of the file access format changing unit 13 when writing data to the storage device 2. There is. The operation of an embodiment of the present invention will be explained using FIGS. 1 to 5.

The information processing section 11 outputs a file format confirmation request to the file format confirmation section 12 in response to a processing request from the application program 10 . When the file format confirmation request is input from the information processing section 11, the file format confirmation section 12 outputs the file format confirmation request to the storage device 2, and files from the file management information 20a in the file 20 stored in the storage device 2. Read the format (step 31 in Figure 3). The file format of this file 20 is stored in the file format confirmation section 12.

The file format confirmation unit 12 checks the file format of the file 20 read from the storage device 2 and the information processing unit 1.
The file format handled by the application program 10 passed from 1 is compared with the file format handled by the application program 10, and it is confirmed whether the file format of the file 20 and the file format handled by the application program 10 are the same (step 32 in FIG. 3).

If the file formats are not the same, the file format confirmation section 12 notifies the information processing section 11 that the file formats are different (step 33 in FIG. 3). Also,
If the file formats are the same, the file format confirmation unit 12 confirms that the file formats are the same, and the information processing unit 1
1 (step 34 in FIG. 3).

The information processing section 11 includes a file format confirmation section 12
When it is notified that the file formats are the same, it outputs a file access request to the file access unit 14. The file access unit 14 accesses the file 20 of the storage device 2 in response to a file access request from the information processing unit 11.
, reads one area of data from the file 20, and passes it to the information processing unit 11. The information processing unit 11 performs processing using one area of data from the file 20 passed from the file access unit 14.

On the other hand, when the information processing unit 11 is notified by the file format confirmation unit 12 that the file formats are different,
A change request is output to the file access format change unit 13.

When the file access format changing section 13 receives a change request from the information processing section 11, it reads one area of the data section 20b from the file 20 via the file access section 14 (step 41 in FIG. 4). At this time, the file access unit 14 reads data according to the file format of the actual file 20 itself, and passes one area of the data section 20b in the read file 20 to the file access format change unit 13.

In order to enable the application program 10 to handle the data read from the file 20, the file access format changing unit 13 changes the file 2 according to the file format handled by the application program 10.
The data from 0 is changed (step 42 in FIG. 4). This file format change is performed by processing the data by, for example, joining or dividing the data, or converting the code of the data.

The file access format changing unit 13 temporarily stores the data whose file format has been changed (step 43 in FIG. 4). At the same time, the file access format change unit 13
passes the data whose file format has been changed to the information processing unit 11 (step 44 in FIG. 4). The information processing section 11 performs processing using the data whose file format has been changed by the file access format changing section 13, or passes the data to the application program 10. The application program 10 processes data passed from the information processing section 11.

When the file access format changing unit 13 receives a change request from the information processing unit 11 when writing data to the file 20, the file access format changing unit 13 changes the file format of the stored data to the file format requested by the information processing unit 11 (in this case is the file format of file 20)).
Figure 5 step 51).

When the file access format changing unit 13 processes the data in the same way as the above-mentioned changing process, the processed data is transferred to the file 20 via the file access unit 14.
(step 52 in FIG. 5). At this time, writing to the data section 20b is performed by writing to the actual file 20b.
This is done according to its own file format.

The above processing is performed in accordance with a processing request from the application program 10, and the file 20
Reading and writing are performed repeatedly.

FIG. 6 is a block diagram showing the configuration of another embodiment of the present invention. In the figure, the other embodiment of the present invention has the same configuration as the one embodiment of the present invention except that a data format logic processing section 15 is provided, and the same components are given the same reference numerals. Furthermore, the operations of these same components are also similar to those in the embodiment of the present invention.

The data format logic processing section 15 uses the signal line 1
If the data format of the data requested from the application program 10 via 01 is different from the data format of the data passed from the information processing unit 11 via the signal line 108, the data passed from the information processing unit 11 The data format is processed into a data format required by the application program 10, and the data is passed to the application program 10.

FIG. 7 is a diagram showing data handled by the application program 10 of FIG. 6. In the figure, data 10a handled by an application program 10 is composed of data information 10a-1 and a data section 10a-2. The data information 10a-1 stores information regarding the data 10a handled by the application program 10, such as data order, data length, and codes used for each data. Further, the data section 10a-2 stores the data 10a itself handled by the application program 10.

FIGS. 8 and 9 are flowcharts showing the processing operations of the data format logic processing section 15 of FIG. FIG. 8 shows the processing operation of the data format logic processing unit 15 when data is passed to the application program 10, and FIG. 9 shows the processing operation of the data format logic processing unit 15 when data is passed from the application program 10. ing. The operation of another embodiment of the present invention will be explained using FIGS. 6 to 9.

When the application program 10 handles the data passed from the information processing unit 11 in a unique data format after changing the file format, the unique data format is stored in the data format logic processing unit 15 in advance.

In this case, first, the data format logic processing section 15 obtains the data stored in the file access format changing section 13 via the information processing section 11 and the signal line 108 (step 61 in FIG. 8). The data format logic processing unit 15 determines whether the data format of the data obtained via the information processing unit 11 is a data format specific to the application program 10. If the data format of the data obtained via the information processing section 11 is not a data format specific to the application program 10, the data format logic processing section 15
The data format is changed to a pre-stored data format unique to the application program 10 (step 62 in FIG. 8). The data format is changed by processing the data by, for example, joining or dividing the data, converting the code of the data, or adding information to the data 10a. The data format logic processing unit 15 passes the processed data to the application program 10 (step 63 in FIG. 8).

Further, when the data format of the data obtained through the information processing section 11 is a data format specific to the application program 10, the data format logic processing section 15 receives a request for data information from the application program 10, Only the data information 10a-1 of the data 10a is passed to the application program 10. Further, when a request for data comes from the application program 10, the data format logic processing section 15 processes the data 10a.
The data section 10a-2 of the application program 1
Pass to 0. The application program 10 receives data information 10a- from the data format logic processing unit 15.
1 and the data in the data section 10a-2.

On the other hand, when passing the data passed from the application program 10 to the information processing section 11, the data format logic processing section 15 changes the data information 10a-1 if there is a request from the application program 10 to change the data information 10a-1. Change 1. Further, if there is a request to change the data section 10a-2 from the application program 10, the data format logic processing section 15 changes the data section 10a-2.
a-2 is changed (step 71 in FIG. 9).

The data format logic processing unit 15 processes the data in the same manner as the above-mentioned change process, and then passes the processed data to the information processing unit 11 (step 72 in FIG. 8). In this case, the data passed to the information processing section 11 has been processed into the original data format.

In this way, the file format confirmation unit 12 confirms whether the file format of the data handled by the application program 10 and the file format of the data in the file 20 are the same, and depending on the confirmation result, the file 20 and the application By having the file access format changing unit 13 change the file format of data exchanged with the program 10, the file format of data stored in the file 20 and the file format of data handled by the application program 10 can be changed. There is no need for them to be the same. Therefore, even if the file format of the data handled by the application program 10 and the file format of the data stored in the file 20 are different, the data can be handled without being aware of the difference.

[0037] Furthermore, it is determined whether the data format requested by the application program 10 and the data format of the data passed from the information processing unit 11 are the same, and the information processing unit 11 and the application program 10 are By changing the data format of the data exchanged between the data format logic section 15,
Even if the data format requested by the application program 10 and the data format of the data passed from the information processing unit 11 are different, the data format can be handled without being aware of the difference in data format.

[0038]

As explained above, according to the present invention, it is checked whether the file format of data handled by an application program is the same as the file format of data on a storage device, and the storage device is By changing the file format of data exchanged between the application program and the application program, even if the file format of the data handled by the application program is different from the file format of the data stored in the storage device, This has the effect of allowing data to be handled without being aware of the differences.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing the structure of the file in FIG. 1;

FIG. 3 is a flowchart showing the confirmation operation of the file format confirmation section in FIG. 1;

FIG. 4 is a flowchart showing the changing operation of the file access format changing unit in FIG. 1;

FIG. 5 is a flowchart showing the changing operation of the file access format changing unit in FIG. 1;

FIG. 6 is a block diagram showing the configuration of another embodiment of the present invention.

FIG. 7 is a diagram showing data handled by the application program in FIG. 6;

FIG. 8 is a flowchart showing the processing operation of the data format logic processing section of FIG. 6;

FIG. 9 is a flowchart showing the processing operation of the data format logic processing section of FIG. 6;

[Explanation of symbols] 1 Information processing device 2. Storage device 10 Application program 11 Information processing section 12 File format confirmation section 13 File access format change section 14 File access section 15 Data format logic processing unit 20 File

Claims (2)

[Claims] 1. An information processing device comprising a storage device that stores data in a preset file format and an application program that requests processing using the data, the file format of data handled by the application program. and a confirmation means for confirming whether the file format of the data in the storage device and the data in the storage device are the same, and the file format of the data exchanged between the storage device and the application program is determined according to the confirmation result of the confirmation device. An information processing device comprising: a file format changing means for changing a file format. 2. A storage device that stores data in a preset file format, an application program that requests a process using the data, and a process that uses the data to execute a process in response to a request from the application program. an information processing device that determines whether a data format handled by the application program is the same as a data format processed by the processing device; data format changing means for changing the data format of data exchanged between the processing means and the application program; and whether the file format of the data handled by the application program and the file format of the data in the storage device are the same. The present invention is characterized by being provided with a confirmation means for confirming whether or not the application program has been rejected, and a file format changing means for changing the file format of data exchanged between the storage device and the application program according to the confirmation result of the confirmation means. Information processing equipment.