JP2011113387A - Format conversion program and format conversion method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a format conversion program and a format conversion method which can cope with the addition/change/deletion of a telegram format without correcting a program source. <P>SOLUTION: The format conversion program converts a format of a telegram transmitted from a transmission program to a reception program. When receiving a predetermined telegram from the transmission program, the format conversion program makes a computer execute processing for reading a previously described format edition method from an external file of the format conversion program, converting the format of the telegram based on the read format edition method, and transmitting the converted telegram to the reception program. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a format conversion program and a format conversion method for converting the format of a message transmitted and received between programs.

  As a technique related to the present invention, there is Patent Document 1, for example. Patent Document 1 discloses a technique for converting a message format when a message (message, document data) is transmitted and received between programs (application software) operating on a computer (information processing apparatus) connected via a network. Yes.

  An example of a technology for converting the format of such a message is a format conversion program. In the format conversion program, an input message (message input to the format conversion program) and an output message (output from the format conversion program). Format) and its editing method are directly described in the format conversion program.

JP 2001-060157 A

  However, in the above-described format conversion program, it is necessary to modify the program source each time the format of a message transmitted / received between programs is added / changed / deleted.

  The present invention has been made in view of the above circumstances, and provides a format conversion program and a format conversion method that can cope with addition / change / deletion of a message format without correcting the program source. Objective.

  In order to achieve such an object, the format conversion program of the present invention is a format conversion program for converting the format of a message transmitted from a transmission program to a reception program, and when a predetermined message is received from the transmission program, Reading a format editing method described in advance from a file outside the format conversion program, converting the format of the message based on the read format editing method, and causing the computer to execute the process of sending the converted message to the receiving program It is characterized by.

  The format conversion method of the present invention is a format conversion method for converting the format of a message transmitted from a transmission program to a reception program. When a predetermined message is received from the transmission program, the format conversion method starts from a file outside the format conversion program. The format editing method described in advance is read, the format of the message is converted based on the read format editing method, and the converted message is transmitted to the receiving program.

  According to the present invention, it is possible to provide a format conversion program and a format conversion method that can cope with addition / change / deletion of a telegram format without correcting the program source.

It is a figure which shows the structural example which concerns on one Embodiment of this invention. It is a figure which shows the example of a description of the DTD file which concerns on one Embodiment of this invention. It is a figure which shows the example of a description of the input message format xml file which concerns on one Embodiment of this invention. It is a figure which shows the example of a description of the output message format xml file which concerns on one Embodiment of this invention. It is a flowchart which shows the operation example which concerns on one Embodiment of this invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments (embodiments) for carrying out the present invention will be described in detail with reference to the accompanying drawings.

  First, the configuration of an embodiment of the present invention will be described with reference to FIG.

  Program 2 is a transmission program (transmission application) that transmits a message.

  The program 1 receives the message transmitted from the program 2, reads the DTD file 4, the input message format xml file 5, and the output message format xml file 6, and performs format conversion from the input message to the output message according to the description of each file. This is a format conversion program (conversion application) that is transmitted to the program 3 after being performed. This program 1 is an example of a format conversion program of the present invention. Note that DTD is an abbreviation for Document Type Definition, and xml is an abbreviation for eXtensible Markup Language.

  Program 3 is a receiving program (receiving application) that receives a message.

  The DTD file 4 is a data file in which definitions of tags used for describing the input message format xml file 5 and the output message format xml file 6 are described in advance. In the present embodiment, the DTD file 4 is described as shown in FIG. 2, for example.

  The input message format xml file 5 is a data file in which elements constituting a message are described in advance for each message for a plurality of messages received by the program 1. In other words, the input message format xml file 5 uses the tags defined in the DTD file 4 to describe the elements for each message and the arrangement order of the elements in advance. In the present embodiment, the input message format xml file 5 is described as shown in FIG. 3, for example.

  The output message format xml file 6 is a data file in which elements constituting a message are described in advance for each message for a plurality of messages transmitted by the program 1. In other words, the output message format xml file 5 uses the tags defined in the DTD file 4 to describe the elements for each message and the arrangement order of the elements in advance. In the present embodiment, the output message format xml file 6 is described as shown in FIG. 4, for example.

  Program 1, program 2, and program 3, for example, are stored in a computer and operate on the computer. The DTD file 4, the input message format xml file 5, and the output message format xml file 6 are stored in, for example, a computer. In FIG. 1, illustration of each computer is omitted. Note that the computer (information processing apparatus) is a general apparatus / device currently used, and thus description thereof is omitted.

  Next, the operation of the embodiment of the present invention will be described with reference to FIGS. The DTD file 4, the input message format xml file 5, and the output message format xml file 6 are preliminarily described in FIG. 2, FIG. 3, and FIG.

  First, the program 1 receives a message from the program 2 [S1].

  Next, the program 1 reads the DTD file 4 (FIG. 2) and the input message format xml file 5 (FIG. 3), and the received message (input message) is a component described in the input message format xml file 5 in advance. [S2]. A specific example of this operation will be described with reference to FIG. The program 1 searches the input message format xml5 file of FIG. 3 for an ops_name element whose name property is “SDHSUB-Ops”, and acquires information on the child element. The child element of the ops_name element includes a plurality of data_number elements. Each data_number element includes data_name, offset, data_size, and data_type elements. The program 1 acquires data from the input message according to the acquired properties of the offset and data_size elements, collects the properties of the child elements for each data_number, and holds them in the memory as input message components.

  Next, the program 1 reads the DTD file 4 (FIG. 2) and the output message format xml file 6 (FIG. 4), and acquires the components of the message (output message) to be transmitted and the arrangement order of the components [S3]. . A specific example of this operation will be described with reference to FIG. The program 1 retrieves the ops_name element whose name property is “SDHSUB-Ops” from the output message format xml6 file of FIG. 4 and acquires the information of the child element. The child element of the ops_name element includes a plurality of data_number elements, which are arranged in the order of the elements of the output message. Each data_number element includes data_name, data_size, and data_type elements. The program 1 collects the properties of the child elements for each data_number and holds them in the memory as output message components.

  Next, the program 1 searches for an input message component (component of the decomposed input message) that matches the output message component (component of the acquired output message), and outputs the output message according to the arrangement order of the output message components [S4]. A specific example of this operation will be described with reference to FIGS. The program 1 searches for an input message component that matches the properties of the output message component and the data_name and data_type elements, transfers the data to the output message area according to the order of the output message component, and creates an output message. When the name property of data_name is "SPACE", the space character of the size of the data_size property is transcribed. When the name property of data_name is "NULL", the null character of the size of the data_size property is transcribed.

  Finally, the program 1 transmits the created output message to the program 3 [S5].

  As described above, according to the present embodiment, when the program 1 receives a message from the program 2, the program 1 decomposes the message into components (input message components) according to the description of the read input message format xml file 5. Next, the program 1 acquires the output message component (output message component) and the arrangement order thereof from the read output message format xml file 6. Next, the program 1 searches for an input message component that matches the output message component, creates an output message according to the arrangement order of the output message components, and transmits the output message to the program 3. That is, in this embodiment, since the format editing method (format conversion method) is described in advance in an xml file outside the program, the program source is changed when the format of a message transmitted and received between programs is added, changed, or deleted. The message format can be added, changed, or deleted only by changing the description of the xml file describing the format editing method without modification.

  As mentioned above, although embodiment of this invention was described, it is not limited to the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary.

  In the above embodiment, the operation illustrated in FIG. 5 has been described as being realized by software of the programs 1 to 3, but may be configured to be realized by hardware, for example. Alternatively, it can be realized by a composite configuration of hardware and software.

  The programs 1 to 3 can be recorded in advance on a hard disk or a ROM (Read Only Memory) as a recording medium, for example. Alternatively, the programs 1 to 3 are temporarily stored on a removable recording medium such as a CD-ROM (Compact Disc Read Only Memory), an MO (Magneto optical) disc, a DVD (Digital Versatile Disc), a magnetic disc, and a semiconductor memory, or It is possible to store (record) permanently. Such a removable recording medium can be provided as so-called package software.

  The above programs 1 to 3 may be installed on the computer from the removable recording medium as described above, or may be wirelessly transferred from the download site to the computer. Or you may wire-transfer to a computer via networks, such as LAN (Local Area Network) and the internet. The computer can receive the transferred program and install it on a recording medium such as a built-in hard disk.

  Further, the operations of the above programs 1 to 3 are not only executed in time series according to the flow of FIG. 5, but also, for example, the processing capability of the apparatus that executes the processing, or in parallel or individually as required. It is also possible to construct to execute.

1 program (format conversion program)
2 program (transmission program)
3 Program (Receiving program)
4 DTD file 5 Input message format xml file 6 Output message format xml file

Claims (6)

A format conversion program for converting the format of a message transmitted from a transmission program to a reception program,
When a predetermined message is received from the transmission program, a format editing method described in advance is read from an external file of the format conversion program, the format of the message is converted based on the read format editing method, and the converted message A program for format conversion, which causes a computer to execute a process of transmitting a message to the reception program. A reception process for receiving a predetermined message from the transmission program;
A disassembly process for reading an input message format file in which components constituting a message are described in advance for each of a plurality of messages, and disassembling the received message into components based on the description of the read input message format file;
An acquisition process for reading an output message format file in which a component constituting a message is described in advance for each of a plurality of messages, and acquiring an arrangement order of the component and the component from the description of the read output message format file;
From the disassembled component, search for one that matches the acquired component, and create a message according to the order of the acquired component,
A transmission process for transmitting the created message to the reception program;
The program for format conversion according to claim 1, wherein the program is executed by a computer. In the decomposition process and the acquisition process,
3. The format conversion program according to claim 2, wherein a DTD file in which definitions of tags used for describing the input message format file and the output message format file are described in advance is also read. A format conversion method for converting the format of a message transmitted from a transmission program to a reception program,
When a predetermined message is received from the transmission program, the format editing method described in advance is read from a file outside the format conversion program, the format of the message is converted based on the read format editing method, and the converted message is A format conversion method comprising transmitting to the reception program. A receiving step of receiving a predetermined message from the transmission program;
A step of reading an input message format file in which components constituting a message for each of a plurality of messages are described in advance, and decomposing the received message into components based on the description of the read input message format file;
An acquisition step of reading an output message format file in which components constituting a message are described in advance for each of a plurality of messages, and acquiring the arrangement order of the components and the components from the description of the read output message format file;
A step of searching for a component that matches the acquired component from the disassembled component, and creating a message according to the arrangement order of the acquired component,
A transmission step of transmitting the created message to the reception program;
The format conversion method according to claim 4, further comprising: In the decomposition step and the acquisition step,
6. The format conversion method according to claim 5, wherein a DTD file in which definitions of tags used for description of the input message format file and the output message format file are described in advance is also read.

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