JP2010257027A - Information processing apparatus, information updating method, program, and information processing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that the period of the access inhibition of an object file in an update processing time is long. <P>SOLUTION: An information processing apparatus includes: an authentication key generation part 330 for generating a first authentication key when receiving a reference request; a request interface part for transmitting the first authentication key to the issue origin of the reference request; and an authentication key verification part 340 for storing the first authentication key, and in receiving an update request, when the first authentication key and a second authentication key included in the update request are matched, determining that the processing of the update request is possible. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an information processing device, an information updating method, a program, and an information processing system, and more particularly to an information processing device, an information updating method, a program, and an information processing system related to processing for updating this information after referring to the information.

  In shared files accessed from a plurality of clients, exclusive control is required for update requests from a plurality of clients. This exclusive control is generally realized based on, for example, file open / close in a file server or a lock / unlock instruction from an application program. However, the exclusive control realized by these methods has a problem that the file occupation time becomes long and the difficulty of developing an application program becomes high.

  A shared file exclusive control method that solves such a problem is disclosed in Japanese Patent Application Laid-Open No. H10-228707. The exclusive control method for a shared file described in Patent Document 1 has the following configuration, and has the effect of avoiding an increase in the occupation time of a file and an increase in difficulty of application program development. ing. First, the update request source receives the contents of the current record and the record number of the current record, and the update record generated by processing the received record number and the current record as the received record information before update. An update request including information is transmitted. Next, the update control unit compares the pre-update record information included in the received update request with the contents of the current record read based on the record number included in the received update request, and an update process is performed based on the comparison result. Execute. The exclusive control unit prohibits access from others only during the update process.

Japanese Patent Laid-Open No. 01-213729

  However, in the technique described in Patent Document 1 described above, it is necessary to read the current record contents by accessing the file again during the update process. Therefore, since the access prohibition of the target file needs to include the period of the input / output control for reading the current record contents, there is a problem that the occupation time of the file becomes long.

  The objective of this invention is providing the information processing apparatus, the information update method, program, and information processing system which solve the problem mentioned above.

  The information processing apparatus of the present invention includes an authentication key generation unit that generates a first authentication key when a reference request is received, a request interface unit that transmits the first authentication key to the issuer of the reference request, When the first authentication key generated by the authentication key generation unit is held and an update request is received, the first authentication key matches the second authentication key included in the update request And an authentication key verification unit that determines that the update request can be processed.

  The information update method of the present invention generates a first authentication key when a reference request is received, transmits the first authentication key to the issuer of the reference request, and retains the first authentication key. When the update request is received, it is determined that the update request can be processed when the first authentication key matches the second authentication key included in the update request.

  The program of the present invention generates a first authentication key when a reference request is received, transmits the first authentication key to the issuer of the reference request, holds the first authentication key, and updates When the request is received, the computer is caused to execute a process for determining that the update request can be processed when the first authentication key matches the second authentication key included in the update request.

  According to the present invention, it is possible to reduce the occupation time of a file at the time of update.

It is a block diagram which shows the structure of the 1st and 2nd embodiment of this invention. It is a figure which shows the structure of the authentication key in the 1st, 2nd and 3rd embodiment of this invention. It is a figure which shows the structure of the reference request | requirement in the 1st and 3rd embodiment of this invention. It is a figure which shows the structure of the reference response in the 1st and 3rd embodiment of this invention. It is a figure which shows the structure of the update request in 1st, 2nd and 3rd embodiment of this invention. It is a figure which shows the structure of the update response in the 1st, 2nd and 3rd embodiment of this invention. It is a flowchart which shows operation | movement of the Web server in the 1st Embodiment of this invention. It is a sequence diagram which shows the whole operation | movement in the 1st Embodiment of this invention. It is a figure which shows the structure of the reference request | requirement in the 2nd Embodiment of this invention. It is a figure which shows the structure of the reference response in the 2nd Embodiment of this invention. It is a flowchart which shows operation | movement of the Web server in the 2nd Embodiment of this invention. It is a sequence diagram which shows the whole operation | movement in the 2nd Embodiment of this invention. It is a block diagram which shows the structure of the 3rd Embodiment of this invention.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  Referring to FIG. 1, the first embodiment of the present invention includes clients 101 to 102, a Web server 301, clients (also referred to as reference request issuers) 101 to 102, and a network 400 that connects the Web server 301. Has been.

  The clients 101 to 102 may be configured by, for example, a general computer including a CPU, a memory, a hard disk device, a workstation, a portable terminal, or the like.

  Each of the client 101 and the client 102 has a browser 111.

  The browser 111 has a reference request issuing unit 112 and an update request issuing unit 113.

  The reference request issuing unit 112 generates and transmits a reference request 220 as shown in FIG. 3 based on an instruction from an operator who operates the clients 101 to 102 or an application program (not shown) that operates in the clients 101 to 102. Have Further, the update request issuing unit 113 is based on an instruction of an operator who operates the clients 101 to 102 or an application program operating in the clients 101 to 102 and an authentication key 210 included in the reference response 230 as shown in FIG. 5 has a function of generating and transmitting an update request 240 as shown in FIG. Details of the reference request 220, the reference response 230, the update request 240, and the authentication key 210 will be described later.

  The Web server 301 may be configured by, for example, a general computer provided with a CPU, a memory, a hard disk device, and the like, a workstation, and the like.

  The Web server 301 includes a request interface unit 310, a target information access unit 320, an authentication key generation unit 330, an authentication key verification unit 340, and a target information storage unit 350.

  The request interface unit 310 has a function of receiving the reference request 220 and the update request 240 from the browser 111, a function of determining which of the reference request 220 and the update request 240 is received, the reference response 230, and FIG. And a function of generating and transmitting an update response 250 as shown. Details of the update response 250 will be described later.

  The target information access unit 320 has a function of reading target information from the target information storage unit 350 based on the reference request 220 received by the request interface unit 310 and a target information storage unit based on the update request 240 received by the request interface unit 310. 350 has a function of writing target information.

  The authentication key generation unit 330 generates an authentication key 210 (also referred to as a first authentication key) as shown in FIG. FIG. 2 shows an example in which the authentication key 210 is “0132”.

  For example, the authentication key generation unit 330 may include a counter (not shown) that counts up every time the Web server 301 receives the reference request 220, and may generate a sequence number as the authentication key 210. Alternatively, the authentication key generation unit 330 may include a clock (not shown), and the time information when the Web server 301 receives the reference request 220 may be used as the authentication key 210. Alternatively, the authentication key generation unit 330 may have a function of generating a random character string as the authentication key 210 so as not to overlap.

  The authentication key verification unit 340 holds the authentication key 210 generated by the authentication key generation unit 330 in association with the target information identifier, and updates the authentication key 210 (also referred to as a second authentication key) included in the update request 240. It is determined whether or not the authentication key 210 corresponding to the target information identifier held by itself having the same value as the target information identifier included in the request 240 matches.

  The target information storage unit 350 stores target information.

  FIG. 3 is a diagram illustrating the structure of the reference request 220. As shown in FIG. 3, the reference request 220 includes a reference request code indicating that the request is a reference request 220 and a target information identifier that specifies target information. For example, if the target information is information stored in a database, the target information identifier may be composed of a database name and a key for specifying a record in the database name. Alternatively, if the target information is part of the tagged document file, the target information identifier may be composed of a document file name and a tag name.

  FIG. 4 is a diagram illustrating the structure of the reference response 230. As shown in FIG. 4, the reference response 230 includes an authentication key 210 and target information.

  FIG. 5 is a diagram illustrating the structure of the update request 240. As shown in FIG. 5, the update request 240 includes an update request code indicating that it is the update request 240, an authentication key 210, a target information identifier, and target information.

  FIG. 6 is a diagram illustrating the structure of the update response 250. As shown in FIG. 6, the update response 250 includes an update result (update success or update failure) for the update request 240.

  Next, the operation of this embodiment will be described in detail with reference to FIGS.

  FIG. 7 is a flowchart showing the operation of the Web server 301 of this embodiment.

  When the Web server 301 starts operation, the request interface unit 310 monitors reception of the reference request 220 or the update request 240 (Step F102). If neither the reference request 220 nor the update request 240 is received (NO in step F102), the request interface unit 310 repeats the process of step F102 and receives the reference request 220 or the update request 240 (step F102). YES), the processing of the Web server 301 proceeds to step F104.

  Next, the request interface unit 310 determines whether or not the received reference request 220 or update request 240 is the update request 240 (step F104). If it is not the update request 240 (NO in step F104), the processing of the web server 301 proceeds to step F122. If it is the update request 240 (YES in step F104), the processing of the web server 301 proceeds to step F132. move on.

  If it is determined in step F104 that the request is not an update request (that is, if the received request is a reference request), the following series of processing is performed.

  In step F122, the authentication key generation unit 330 generates the authentication key 210, and the authentication key verification unit 340 holds the verification key (step F122). When the authentication key verification unit 340 already holds the verification key, the already held authentication key 210 is overwritten by the newly generated authentication key 210.

  Next, the target information access unit 320 reads the target information from the target information storage unit 350 based on the received reference request 220 (step F124).

  Next, the request interface unit 310 generates a reference response 230 including the authentication key 210 held in step F122 and the target information read in step F124, and transmits this (step F126). Then, the processing of the Web server 301 returns to Step F102.

  On the other hand, if it is determined in step F104 that the request is an update request, the following series of processing is performed.

  In step F132, the authentication key verification unit 340 determines whether or not the authentication key 210 held by the authentication key verification unit 340 matches the authentication key 210 included in the update request 240 (step F132). If they do not match (NO in step F132), the request interface unit 310 transmits an update response 250 including an update result indicating update failure (step F134). Then, the processing of the Web server 301 returns to Step F102.

  If they match (YES in step F132), the processing of the web server 301 proceeds to step F136.

  In step F136, the target information access unit 320 writes the target information in the target information storage unit 350 based on the received update request 240 (step F136).

  Next, the request interface unit 310 transmits an update response 250 including an update result indicating a successful update (step F138). Then, the processing of the Web server 301 returns to Step F102.

  FIG. 8 shows a specific example of this embodiment in which the client 101 and the client 102 try to update the same target information (for example, the target information identifier is “abcd7788”), and the client 101 updates. FIG. 6 is a sequence diagram illustrating an operation when the client 102 succeeds in updating and the update is successful.

  First, the client 101 transmits a reference request 220, and the Web server 301 receives it (step S502). As described with reference to FIG. 7, the processing of the Web server 301 that has received the reference request 220 in Step F102 proceeds to Step F104, and then proceeds to Step F122.

  Next, the Web server 301 generates and holds the authentication key 210 (for example, “0132” is generated) (step S504, step F122), and reads the target information (step S506, step F124).

  Subsequently, the Web server 301 transmits a reference response 230 (step F126), and the client 101 receives it (step S508). As described with reference to FIG. 7, the processing of the Web server 301 that has transmitted the reference response 230 in Step F126 proceeds to Step F102.

  Next, the client 102 transmits the reference request 220, and the Web server 301 receives it (step S512 in FIG. 7).

  Next, the Web server 301 generates and holds the authentication key 210 (eg, “0133” is generated) (step S514, step F122), and reads the target information (step S516, step F124).

  Subsequently, the Web server 301 transmits a reference response 230 (step F126), and the client 101 receives it (step S518).

  Next, the client 101 transmits an update request 240, and the Web server 301 receives it (step S522). As described with reference to FIG. 7, the processing of the Web server 301 that has received the update request 240 in Step F102 proceeds to Step F104, and then proceeds to Step F132.

  Next, the Web server 301 determines whether or not the authentication key 210 “0133” held in the authentication key verification unit 340 matches the authentication key 210 “0132” included in the update request 240 (Step S1). S524, step F132). In this case, since the two authentication keys 210 do not match, the Web server 301 transmits an update response 250 including an update result indicating update failure to the client 101 (step F134), and the client 101 receives this ( Step S528). As described with reference to FIG. 7, the processing of the Web server 301 that has transmitted the update response 250 in Step F134 proceeds to Step F102.

  Next, the client 102 transmits an update request 240, and the Web server 301 receives it (step S532).

  Next, the Web server 301 determines whether or not the authentication key 210 “0133” held in the authentication key verification unit 340 matches the authentication key 210 “0133” included in the update request 240 (Step S1). S534, step F132). In this case, since the two authentication keys 210 match, the target information is written in the target information storage unit 350 based on the received update request 240 (step S536, step F136).

  Subsequently, the Web server 301 transmits an update response 250 including an update result indicating a successful update to the client 102 (Step F138), and the client 101 receives this (Step S538). As described with reference to FIG. 7, the processing of the Web server 301 that has transmitted the update response 250 in Step F138 proceeds to Step F102.

  The effect of the present embodiment described above is that it is possible to shorten the file occupation time at the time of update.

  The reason is that the authentication key 210 generated when the reference request 220 is received and the authentication key 210 included in the update request 240 are compared to determine whether the update is possible.

  That is, in the related art described in Patent Document 1, it is necessary to read record data (corresponding to the target information of the present embodiment) in order to determine whether or not update is possible, and this input / output processing takes time. However, in the present embodiment, since the determination is based on the authentication key 210 held by the authentication key verification unit 340, the input / output process is not required, and the update process time is shortened. Can be shortened.

  Next, a second embodiment of the present invention will be described in detail with reference to the drawings.

  The configuration of this embodiment is the same as that of the first embodiment shown in FIG.

  The present embodiment differs from the first embodiment in the functions and operations of the browser 111, the request interface unit 310, and the authentication key generation unit 330.

  In addition to the functions of the first embodiment, the reference request issuing unit 112 of the browser 111 determines whether the reference of the target information is a reference with a related update or a reference without a related update. Based on this determination, the reference request 221 is generated and transmitted.

  As shown in FIG. 9, the reference request 221 includes a reference request code, a reference dedicated identifier, and a target information identifier that specifies target information. The reference-only identifier is a reference with an update related to the reference request 221 (for example, the reference-only identifier is “0”) or a reference without a related update (for example, the reference-only identifier is “1”). ”).

  In addition to the functions of the first embodiment, the request interface unit 310 determines whether or not the request is a reference request 221, and the reference-only identifier included in the reference request 221 is “1”. A function of generating and transmitting a reference response 231 as shown in FIG. The reference response 231 includes target information as shown in FIG.

  The authentication key generation unit 330 does not generate the authentication key 210 when the reference-only identifier included in the reference request 221 is “1”.

  Next, the operation of this embodiment will be described in detail with reference to FIGS.

  FIG. 11 is a flowchart showing the operation of the Web server 301 of this embodiment.

  When the Web server 301 starts operation, the request interface unit 310 monitors reception of the reference request 221 or the update request 240 (Step F202). If neither the reference request 221 nor the update request 240 is received (NO in step F202), the request interface unit 310 repeats the process of step F202, and receives the reference request 221 or the update request 240 (step F202). YES), the processing of the Web server 301 proceeds to step F204.

  Next, the request interface unit 310 determines whether the received reference request 221 or update request 240 is the update request 240 (step F204). If it is not the update request 240 (NO in step F204), the process of the web server 301 proceeds to step F212. If it is the update request 240 (YES in step F204), the process of the web server 301 proceeds to step F232.

  Next, the request interface unit 310 determines whether or not the reference-only identifier included in the received reference request 221 indicates that it is reference-only (step F212). If the reference-only identifier is not indicated (that is, the reference-only identifier is “0”) (NO in step F212), the processing of the Web server 301 proceeds to step F222, indicating reference-only (that is, the reference-only identifier is “ 1 ") (YES in step F212), the process of the Web server 301 proceeds to step F214.

  In step F214, the target information access unit 320 reads the target information from the target information storage unit 350 based on the received reference request 221 (step F214).

  Next, the request interface unit 310 generates a reference response 231 including the target information read in step F214, and transmits this (step F216). Then, the process of the Web server 301 returns to Step F202.

Note that the operations from step F222 to step F238 correspond to the operations from step F122 to step F138, and are not described because they are equivalent to each other. FIG. Is a sequence diagram showing an operation in the case where the target information (for example, the target information identifier is “abcd7788”) is updated and the client 102 only refers to the same target information.

  First, the client 101 transmits a reference request 221 including a reference-only identifier “0”, and the Web server 301 receives it (step S502). As described above, the processing of the Web server 301 that has received the reference request 221 in Step F202 proceeds to Step F204, continues to Step F212, and further proceeds to Step F222.

  Next, the Web server 301 generates and holds the authentication key 210 (eg, “0132” is generated) (step S504, step F222), and reads the target information (step S506, step F224).

  Subsequently, the Web server 301 transmits a reference response 230 (step F226), and the client 101 receives it (step S508). As described above, the processing of the Web server 301 that has transmitted the reference response 230 in Step F226 proceeds to Step F202.

  Next, the client 102 transmits a reference request 221 including the reference-only identifier “1”, and the Web server 301 receives it (step S612).

  Next, the Web server 301 reads the target information (Step S616, Step F214).

  Subsequently, the Web server 301 transmits a reference response 231 (step F216), and the client 101 receives it (step S618).

  Next, the client 101 transmits an update request 240, and the Web server 301 receives it (step S522). As described above, the processing of the Web server 301 that has received the update request 240 in Step F202 proceeds to Step F204, and then proceeds to Step F232.

  Next, the Web server 301 determines whether or not the authentication key 210 “0132” held in the authentication key verification unit 340 matches the authentication key 210 “0132” included in the update request 240 (Step S1). S524, Step F232). In this case, since the two authentication keys 210 match, the target information is written in the target information storage unit 350 based on the received update request 240 (step S626, step F236).

  Subsequently, the Web server 301 transmits an update response 250 including an update result indicating a successful update to the client 102 (Step F238), and the client 101 receives this (Step S628). As described above, the processing of the Web server 301 that has transmitted the update response 250 in Step F238 proceeds to Step F202.

  The effect of the present embodiment described above is that the update process is determined to be impossible because the reference process that does not update the other clients 101 to 102 competes with the update process by a certain client 101 to 102. It is a point that can be avoided.

  The reason is that if the reference request 221 includes the reference-only identifier “1”, the authentication key 210 is not generated, that is, the authentication key 210 is not updated.

  Next, a third embodiment of the present invention will be described in detail with reference to the drawings.

  The third embodiment is an embodiment configured by only basic elements of the present invention. FIG. 13 is a diagram showing a configuration of the present embodiment.

  Referring to FIG. 13, the present embodiment includes an authentication key generation unit 330, a request interface unit 310, and an authentication key verification unit 340.

  The authentication key generation unit 330 has a function of generating the authentication key 210 when the reference request 220 is received.

  The request interface unit 310 has a function of transmitting the authentication key 210 generated by the authentication key generation unit 330 to the issuer of the reference request 220.

  The authentication key verification unit 340 determines that the update request 240 can be processed when the authentication key 210 generated by the authentication key generation unit 330 matches the authentication key 210 included in the update request 240.

  By configuring as described above, the present embodiment has the same effect as the effect described in the first embodiment.

  Each component described in each of the above embodiments may cause a computer to execute predetermined processing by a program, for example.

  Each component described in each of the above embodiments does not necessarily have to be individually independent, and a plurality of components are realized as one module, or one component is realized as a plurality of modules. It may be configured such that a certain component is a part of another component, or a part of a certain component overlaps a part of another component.

  Further, in each of the embodiments described above, a plurality of operations are described in order in the form of a flowchart, but the description order does not limit the order in which the plurality of operations are executed. For this reason, when each embodiment is implemented, the order of the plurality of operations can be changed within a range that does not hinder the contents.

  Furthermore, in each embodiment described above, a plurality of operations are not limited to being executed at different timings. For example, another operation may occur during the execution of a certain operation, or part or all of the execution timing of a certain operation and the execution timing of another operation may overlap.

  Furthermore, in each of the embodiments described above, a certain operation is described as a trigger for another operation, but the description does not limit all relationships between the certain operation and other operations. For this reason, when each embodiment is implemented, the relationship between the plurality of operations can be changed within a range that does not hinder the contents. The specific description of each operation of each component does not limit each operation of each component. For this reason, each specific operation of each component may be changed within a range that does not hinder the functional, performance, and other characteristics in implementing each embodiment.

  In addition, each component in each embodiment described above may be realized by hardware, software, or a mixture of hardware and software, if necessary. May be.

  Further, the physical configuration of each component is not limited to the description of the above embodiment, and may exist independently, may exist in combination, or may be separated. It may be configured.

  In the present invention, information update processing from a plurality of clients is performed on certain information on the server, and the information update processing refers to (checks) current information and then updates the information thereafter. It can be applied to a system that includes

DESCRIPTION OF SYMBOLS 101 Client 102 Client 111 Browser 112 Reference request issuing unit 113 Update request issuing unit 210 Authentication key 220 Reference request 221 Reference request 230 Reference response 231 Reference response 240 Update request 250 Update response 301 Web server 310 Request interface unit 320 Target information access unit 330 Authentication key generation unit 340 Authentication key verification unit 350 Target information storage unit 400 Network

Claims (15)

An authentication key generation unit that generates a first authentication key when a reference request is received;
A request interface unit for transmitting the first authentication key to the issuer of the reference request;
When the first authentication key generated by the authentication key generation unit is held and an update request is received, the first authentication key matches the second authentication key included in the update request An information processing apparatus comprising: an authentication key verification unit that determines that the update request can be processed. A target information access unit that reads target information based on the reference request;
The information processing apparatus according to claim 1, wherein the request interface unit transmits a reference response including the first authentication key and the read target information to an issuer of the reference request.   3. The target information access unit, when the authentication key verification unit determines that the update request can be processed, executes a process of writing target information included in the update request. Information processing device.   The information processing apparatus according to claim 2, further comprising a target information storage unit that stores the target information. The reference request includes a reference-only identifier indicating whether there is an associated update request;
The authentication key generation unit generates the first authentication key based on the reference-specific identifier;
5. The information processing apparatus according to claim 2, wherein the request interface unit includes the first authentication key in the reference response based on the reference-dedicated identifier. When a reference request is received, a first authentication key is generated,
Sending the first authentication key to the issuer of the reference request;
When the first authentication key is held and the update request is received, the update request can be processed when the first authentication key matches the second authentication key included in the update request. An information update method characterized in that Read target information based on the reference request,
The information update method according to claim 6, wherein a reference response including the first authentication key and the read target information is transmitted to an issuer of the reference request.   The information update method according to claim 7, wherein when the authentication key verification unit determines that the update request can be processed, a process of writing target information included in the update request is executed. The reference request includes a reference-only identifier indicating whether there is an associated update request;
Generating the first authentication key based on the reference-only identifier;
9. The information updating method according to claim 7, wherein the first authentication key is included in the reference response based on the reference-only identifier. When a reference request is received, a first authentication key is generated,
Sending the first authentication key to the issuer of the reference request;
When the first authentication key is held and the update request is received, the update request can be processed when the first authentication key matches the second authentication key included in the update request. A program for causing a computer to execute a process for determining that Read target information based on the reference request,
11. The program according to claim 10, further comprising: causing a computer to execute a process of transmitting a reference response including the first authentication key and the read target information to an issuer of the reference request.   12. The computer according to claim 11, wherein when the authentication key verification unit determines that the update request can be processed, the computer executes a process of executing a process of writing target information included in the update request. program. The reference request includes a reference-only identifier indicating whether there is an associated update request;
Generating the first authentication key based on the reference-only identifier;
The program according to claim 11 or 12, wherein the computer executes a process of including the first authentication key in the reference response based on the reference-only identifier. An information processing apparatus according to claim 1 and a client connected via a network,
The client includes a reference request issuing unit that issues the reference request;
An information processing system comprising: an update request issuing unit that issues an update request including the first authentication key as the second authentication key. An information processing apparatus according to claim 5 and a client connected via a network,
The client, a reference request issuing unit that issues a reference request including the reference-only identifier;
An information processing system comprising: an update request issuing unit that issues an update request including the first authentication key as the second authentication key.

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