JP6932924B2 - Information processing system - Google Patents

Description

The present invention relates to an information processing system for converting a first document file and managing the document by the converted second document file, an information processing apparatus, and a program for causing a computer to execute the processing.

Financial institutions, telecommunications carriers, electric power companies, water companies, gas companies, etc. print and issue usage statements and other forms to each customer on a monthly or period basis. This form is saved as electronic data and is used by the person in charge for reissuing or viewing for response when there is an inquiry from a customer.

The form can be converted into a document file having a predetermined file format (format) at the time of printing, can be printed, and can be output as a document file in that format. Then, in order to save a large amount of forms as electronic data, enable operations such as data confirmation, search, and data editing, and manage files safely (securely), document files are electronic forms in a secure and unique format. Converted to a file.

By the way, if the device that created the form and the device that browses the form are different, the format (font) of the characters in the form and the character code for converting to characters are different. I can't view the form. Therefore, there is known a technique of converting characters based on correspondence table data, and if there are unconvertible characters, acquiring the unconvertible characters as image data and editing them (see, for example, Patent Document 1).

However, when managing with the above electronic form file, if embedded fonts and external characters are used in the document file, the font in the document file cannot be used when displaying the electronic form file. Further, since the electronic form file is a file in a unique format, it is not possible to acquire unconvertible characters as image data and edit them as in the above technique.

Therefore, the font name used in the document file and the characters in which the font is used can only be displayed by specifying the alternative font used when displaying in the electronic form file. There was a problem that the display result was different from the file.

Further, when the image and the character overlap, there is a problem that the display result may be different from that of the document file depending on the display order of the character and the image in the electronic form file.

The present invention has been made in view of the above problems, and is an information processing system capable of obtaining the same output result in a first document file and a second document file obtained by converting the first document file. , Information processing equipment and programs.

In order to solve the above-mentioned problems, in one embodiment of the invention, the first document file is an information processing system that converts a first document file and manages the document by the converted second document file. Is converted into a second document file including the first document file, a storage unit for storing the second document file, and an acquisition request for a document to be output from the output device or a document to the output device. A request reception unit that accepts a transmission request, an extraction unit that extracts a first document file from a second document file stored in a document storage unit that the request reception unit accepts, and a first extraction unit that is extracted by the extraction unit. Provided is an information processing system including a generation unit that generates an image of a document from a document file and a transmission unit that transmits the image generated by the generation unit to an output device.

According to the present invention, it is possible to obtain the same output result for the first document file and the second file obtained by converting the first document file.

The figure which showed the whole structure of a document management system. The figure which showed the hardware configuration of the management server as an information processing apparatus provided in a document management system. Functional block diagram of the management server. The figure which illustrated the structure of the electronic form file of the 1st format. The figure explaining the process of converting a document file into an electronic form file of the first format. The figure explaining the process executed when the acquisition request of the electronic form file of the 1st format is received. The flowchart which showed the flow of the process shown in FIG. The figure explaining the process of deleting a document file and an image. The flowchart which showed the flow of the process shown in FIG. The figure explaining the process of switching a process and freeing a memory.

FIG. 1 is a diagram showing an overall configuration of a document management system. The document management system includes a client device 10 used by a user and a management server 11 as an information processing device that communicates with the client device 10 and manages documents. The client device 10 and the management server 11 are connected to each other via a network 12 such as a LAN (Local Area Network) or the Internet.

The network 12 may be a wired network or a wireless network. The network 12 is not limited to one network, and may be composed of two or more networks connected by a relay device such as a router or a proxy server.

The client device 10 also functions as an output device that displays and outputs a document, requests the management server 11 to acquire the document, and outputs the document acquired from the management server 11.

The management server 11 manages the document file of the document provided to the client device 10, receives the document acquisition request from the client device 10, and transmits the page information of the corresponding document file to the client device 10. Here, the management server 11 as an information processing device will be described, but instead of the management server 11, an information processing system in which the functions of the management server 11 are divided into two or more devices may be used. good. Further, the management server 11 transmits the information of the page of the document file to the client device 10, but the present invention is not limited to this, and the printer and the MFP (Multi) connected to another device, for example, the network 12. -Function Peripheral), may be sent to a projector, etc. Therefore, the management server 11 can receive the transmission request to the printer or the like and transmit the page information of the corresponding document file to the printer or the like. Although the transmission request may be received and transmitted in this way, the following description will be made assuming that the information of the page of the document file is transmitted to the client device 10 in response to the above acquisition request.

The document management system may be composed of only the client device 10 and the management server 11, but in the configuration shown in FIG. 1, a data output server 13 for outputting data and an application server 14 are further provided. The data output server 13 is a device that is connected to an output device such as a printer that outputs data and outputs the created document data to an output device such as a printer or a management server 11. The application server 14 is a device having a function of bridging the processing of the management server 11 in response to a request from the user.

Hereinafter, the document will be described as a form which is a document created for keeping a record of withdrawals and the like or for notifying the other party. Examples of the form include a cash register, a journal, a deposit / withdrawal slip, a sales slip, an invoice, a receipt, a delivery note, and the like.

The data output server 13 implements, for example, a form application and outputs form data. The data output server 13 can specify the management server 11 in addition to the printer as the output destination, and by designating the management server 11, the form data can be stored and managed.

The application server 14 holds the form data required for the processing of the management server 11 as a document file in an arbitrary format. The application server 14 may send a document file at the request of the management server 11, or stores the document file in a folder having a function of transferring to the management server 11 called a hot folder, and the management server by that function. It may be transferred to 11. The document file can be, for example, an embedded font, external characters, or the like, and can be a file in a format capable of expressing the contents of the form in many expression methods.

The management server 11 creates a file of its own format to be managed from the form data output from the data output server 13, and also converts the document file from the application server 14 into a file of its own format and manages it. The client device 10 used by the user implements an application capable of displaying a file in this unique format, and uses this application to check the contents of the form, search, and search for data. Can be edited.

The management server 11 stores the created file and the converted file as an electronic form file, and manages the electronic form file. If all the document files are converted to an electronic form file in this format, the embedded fonts and external characters in the document file cannot be used when displayed in the converted electronic form file. Further, when the image and the character overlap, the display in the electronic form file differs from that in the document file depending on the display order of the image and the character in the electronic form file.

Therefore, the management server 11 has a function described later, and this function solves these problems. Before explaining the function, the hardware configuration of the management server 11 will be described with reference to FIG. The management server 11 includes a CPU 20, a ROM 21, a RAM 22, an HDD 23, a communication I / F 24, and a connection I / F 25 as hardware. These are connected to the bus 26 and exchange information with each other via the bus 26.

The CPU 20 controls the entire management server 11 and executes processing such as the above conversion and functions described later. The ROM 21 stores a boot program for starting the management server 11, firmware for controlling the HDD 23, the communication I / F 24, and the like. The RAM 22 provides a work area for the CPU 20.

The HDD 23 stores an OS, a program for executing a process such as the above conversion and a function described later, an electronic form file to be managed, and the like. The programs include a program that executes processing related to forms in response to a request for acquiring forms from the client device 10, a program that converts a document file into an electronic form file, a program that creates an electronic form file from form data, and a function described later. It is possible to implement a program to realize it.

The communication I / F 24 connects to the network 12 shown in FIG. 1 and communicates with the client device 10 via the network 12. The connection I / F 25 connects to the data output server 13 and the application server 14 by a cable or the like. The data output server 13 and the application server 14 may also be connected to the network 12 and communicate via the network 12.

In addition to these, the management server 11 is connected to an external storage device such as an external HDD, and has an external storage I / F for controlling storage and reading of information in the external storage device, a display device for displaying information, and information. It is possible to provide an input device or the like for inputting.

FIG. 3 is a functional block diagram of the management server 11. The management server 11 can generate each functional unit for realizing each function by executing a program, and can include those functional units. The management server 11 includes at least a conversion unit 30, a request reception unit 31, a storage unit 32, an extraction unit 33, a generation unit 34, and a transmission unit 35 as its functional units. In the example shown in FIG. 3, a file creation unit 36 and a control unit 37 are also provided. It is also possible to further provide other functional units.

The file creation unit 36 creates an electronic form file from the form data created by the data output server 13. Since the contents of the electronic form file are not directly related to the present invention, they will not be described in detail here. The created electronic form file is stored in the storage unit 32.

The conversion unit 30 converts the document file held by the application server 14 into an electronic form file. The conversion unit 30 can convert not only an electronic form file in one format but also an electronic form file in two or more different formats. Here, it is assumed that it can be converted into an electronic form file in two formats.

Specifically, the conversion unit 30 converts the document file that is put into the hot folder whose format is specified by the setting and transferred into the electronic form file of that format. The two formats are, for example, different versions of the format. Since the second format of the two formats is a unique one that has been conventionally adopted, the description thereof is omitted here, and only the other first format will be described in detail.

FIG. 4 is a diagram illustrating the structure of the electronic form file of the first format. In the conversion by the conversion unit 30, only the information about the characters included in the conversion source document file is converted into the file A in the specified format. Information about characters can include user information, a file name of a document file of a conversion source, and the like. Examples of the user information include a user name and a user ID which is identification information for identifying the user. It also generates an image of the first page of the document file. The electronic form file of the first format is composed of the converted file A, the generated image of the first page, and the contents of the document file of the conversion source. The content of the conversion source document file is the same as the content of the conversion source document file.

The electronic form file of the first format may contain other information. As other information, for example, a hash code (hash value) generated from the document file of the conversion source can be included. The hash value is a non-regular fixed-length value calculated from the conversion source document file by a certain calculation procedure, and can be calculated by using a hash function. The hash value can be used as a file name or the like for identifying an image or the like to be stored in the cache, which is one of the storage units 32.

Further, the electronic form file of the first format can include information indicating the page of the document file corresponding to the first page included in the file A. This is used when a part of the document file is used as the file A when the maximum number of pages of the converted file A is smaller than the number of pages of the document file. Therefore, if the maximum number of pages in file A and the number of pages in the document file are the same, this information need not be included.

The conversion process performed by the conversion unit 30 will be described in detail with reference to FIG. The conversion unit 30 acquires profile information including information about the format set in each hot folder, and performs conversion processing based on the profile information. The document file contains information about characters, figures, images, and the like. The conversion unit 30 creates the character and its attribute information using only the information about the character in the document file, and compresses the character information by omitting the repetition of the same character and the attribute information, thereby relating to the character. Convert information. As a result, the above file A is generated.

Further, the conversion unit 30 generates an image of the first page of the document file. If one page is a user information page, that page is not counted in the number of pages. Other than that, even if it is a blank page, it is counted in the number of pages. The reason for generating the image of the first page is that the user requests the electronic form file, the first page is displayed, and the first page is quickly provided. Then, the conversion unit 30 generates a hash value from the document file, inserts the document file as it is, and generates an electronic form file of the first format.

With reference to FIG. 3 again, the request receiving unit 31 receives a request for acquiring a form representing the file in order to display the electronic form file from the client device 10. This request is a request for acquiring a designated page such as the first page or the second page of the form. When the control unit 37 receives the acquisition request for the first page of the form, the electronic form file of this form includes the image of the first page, and therefore instructs the transmission unit 35 to transmit the image. do.

When the acquisition request for the second and subsequent pages is received, the control unit 37 instructs the generation unit 34 to generate the image of the requested page from the document file included in the electronic form file.

The storage unit 32 stores the electronic form file of the first format converted by the conversion unit 30, and also stores and manages the document file extracted by the extraction unit 33 and the image generated by the generation unit 34 as a file cache. be able to. As a result, if the image of the requested page is stored, the control unit 37 can take out the image and instruct the transmission unit 35 to transmit the image. Further, even if the image is not stored, if the document file extracted from the requested electronic form file is stored, the control unit 37 is requested to the generation unit 34 by using the document file. It is possible to instruct the transmission unit 35 to generate an image of the generated page and instruct the transmission unit 35 to transmit the generated image.

By keeping the document file extracted from the requested file and the generated image as a file cache, the image can be provided quickly and the performance when displaying the required file can be improved. .. By the way, by transmitting and providing the image to the client device 10, it is possible to provide the user with expressions such as a font in which the document file can be displayed and various figures as they are.

Therefore, when the requested page is the first page, the control unit 37 instructs to transmit the image of the first page in the electronic form file, and when the requested page is the second and subsequent pages, the image is already stored as a file cache. If so, you can instruct it to send it, and if it is not stored, you can instruct it to generate an image.

The electronic form file is associated with a file name as information for identifying the file. However, the images and page files stored as a file cache do not have the information to identify them. Therefore, information (for example, a file name) for identifying an image or page file is generated from the requested file or page information, and is associated with the image or page file.

The file name associated with the image or page file can include a hash value and a page number. Specifically, it can be "hash value_page number". The image can further include resolution information and can be set to "hash value_page number_resolution". Since these are examples, the file names are not limited to these. Such filenames can be generated using certain algorithms.

The transmission unit 35 transmits the image instructed by the control unit 37 to the requesting client device 10. The client device 10 displays the image received from the transmission unit 35 on the display unit included in the client device 10, and presents the content of the page to the user.

When an arbitrary page of the electronic form file of the second format is requested, the control unit 37 acquires the requested electronic form file from the storage unit 32 and transmits the requested page so as to transmit the requested page. Instruct 35. The client device 10 can receive and display the page. In this case, when the page has an embedded font, external characters, etc., it is displayed as a substitute font, etc., and the same font as the document file cannot be displayed.

The processing when the management server 11 receives the acquisition request of the electronic form file of the first format will be described in detail with reference to FIGS. 6 and 7. FIG. 6 is a diagram illustrating the flow of files, requests, and the like, and FIG. 7 is a flowchart showing the flow of the processing. In the example shown in FIG. 6, the storage unit 32 is configured as a first storage unit 32a for storing an electronic form file, a second storage unit 32b for storing an image, and a third storage unit 32c for storing a document file. ing.

When an information processing system composed of the management server 11 and one or more servers different from the management server 11 is adopted, the request receiving unit 31, the second storage unit 32b, and the transmission are transmitted to the management server 11. A unit 35 and a control unit 37 are provided, and another one or more servers can be provided with a first storage unit 32a, a third storage unit 32c, an extraction unit 33, and a generation unit 34. This is just an example and is not limited to this.

First, referring to FIG. 6, the control unit 37 obtains information (full path) indicating a storage location of the electronic form file from the request received by the request reception unit 31, a hash value, a page number, and resolution information. get. When the page number is 1, the control unit 37 acquires the image of the first page included in the electronic form file from the first storage unit 32a based on the file name included in the full path, and transmits the image to the transmission unit 35. , Instruct to send the image.

When the page number is other than 1, the control unit 37 generates a file name from the hash value, the page number, and the resolution information, and an image associated with the generated file name exists in the second storage unit 32b. Check if. If it exists, the image is acquired from the second storage unit 32b, and the transmitting unit 35 is instructed to transmit the acquired image.

If the image of the file name does not exist in the second storage unit 32b, the control unit 37 passes the full path, hash value, page number, and resolution information to the generation unit 34, and requests the generation unit 34 to generate the image. ..

The generation unit 34 generates a file name from the received full path, hash value, page number, and resolution information, and confirms whether a document file with the generated file name exists in the third storage unit 32c. If a document file with that file name exists, the generation unit 34 generates an image of the corresponding page in the document file based on the page number and returns it to the control unit 37. If the document file with the generated file name does not exist, the generation unit 34 passes the full path and hash value to the extraction unit 33 and requests the extraction unit 33 to extract the document file.

The extraction unit 33 identifies the corresponding electronic form file from one or more electronic form files stored in the first storage unit 32a based on the received full path, and extracts the document file from the specified electronic form file. .. Since the electronic form file is just a document file inserted as it is, it can be extracted by taking out the document file as it is. The extraction unit 33 returns the extracted document file to the generation unit 34, generates a file name using the hash value, associates the generated file name with the third storage unit 32c, and outputs the extracted document file. Store. The generation unit 34 generates an image of the corresponding page in the document file received from the extraction unit 33 based on the page number, and returns it to the control unit 37.

The control unit 37 instructs the transmission unit 35 to transmit the image received from the generation unit 34, generates a file name using the hash value, the page number, and the resolution information, and generates the generated file. The name is associated with the image and stored in the second storage unit 32b.

The contents of the processing when the management server 11 receives the acquisition request of the electronic form file of the first format are as described above. The flow of this processing can be summarized as shown in FIG. 7. The management server 11 notifies the client device 10 of the information on the full path, hash value, and resolution of the electronic form file that can be acquired. Therefore, the client device 10 can transmit an acquisition request including the page number of the page to be displayed in the information.

When the request receiving unit 31 receives the acquisition request of an arbitrary page of the electronic form file of the first format from the client device 10, the process is started from step 700. In step 705, the control unit 37 acquires information on the full path including the file name of the electronic form file, the hash value, the page number, and the resolution from the received acquisition request.

In step 710, the control unit 37 confirms whether the page number is 1, and if it is 1, in step 715, the first page included in the electronic form file of the file name from the first storage unit 32a. The image is acquired, and the transmission unit 35 is instructed to transmit the image. The transmission unit 35 transmits the image of the first page to the client device 10. Then, the process proceeds to step 770 and the processing for the request is completed.

If the page number is other than 1, the process proceeds to step 720, and it is confirmed whether the requested page image exists in the second storage unit 32b. If it exists, the process proceeds to step 725, the corresponding image is acquired from the second storage unit 32b, and the transmission unit 35 is instructed to transmit the image. The transmission unit 35 transmits the image to the client device 10. Then, the process proceeds to step 770 and the processing for the request is completed.

If the page requested in step 720 does not exist, the process proceeds to step 730, the full path, hash value, page number, and resolution information are passed to the generation unit 34, and an image of the page is requested to be generated. In step 735, the generation unit 34 generates a file name from the hash value, and confirms whether the document file with the generated file name exists in the third storage unit 32c. If it exists, the process proceeds to step 740, the corresponding document file is acquired from the third storage unit 32c based on the generated file name, an image of the page is generated based on the page number and the resolution, and the control unit 37 is used. return.

On the other hand, if it does not exist in the third storage unit 32c in step 735, the process proceeds to step 745, and the generation unit 34 passes the full path and hash value to the extraction unit 33 and requests the extraction unit 33 to extract the document file. In step 750, the extraction unit 33 identifies the corresponding electronic form file in the first storage unit 32a using the full path, and extracts the document file from the specified electronic form file. In step 755, the extraction unit 33 returns the extracted document file to the generation unit 34, generates a file name using the hash value, associates the generated file name with the extracted document file, and associates the generated file name with a third storage unit. Store in 32c.

In step 760, the generation unit 34 receives the document file from the extraction unit 33 and generates an image of the page specified by the page number using the resolution information. Then, the generation unit 34 returns the generated image to the control unit 37.

In step 765, the control unit 37 instructs the transmission unit 35 to transmit the received image, generates a file name using the hash value, the page number, and the resolution information, and generates a file name for the image. Is associated and stored in the second storage unit 32b. When the image of the requested page is transmitted in this way, the process for the request is terminated in step 770.

Here, since the electronic form file stored in the first storage unit 32a has a unique format, its contents are displayed unless it is a client device 10 or the like that implements an application that can open the electronic form file. It is not possible. However, since the document file stored in the third storage unit 32c and the image stored in the second storage unit 32b are not in their own format, they can be displayed by using a general tool. If nothing is done, the contents of the document may be known, causing security problems.

Therefore, for example, the entire cached file can be encrypted by using the function of encrypting the folder of the cache file path provided as a function of Windows (registered trademark). In this case, when the document file or image is acquired, it can be decrypted. Since this is an example, other methods may be adopted.

If the resolution of the image is low, jagged lines and curves are conspicuous when it is displayed, and if it is high, the load at the time of image creation becomes high. Therefore, the resolution is set to a certain level. Even if the resolution is set to a certain level, the difference between the result of displaying the document file and the result of displaying the document file will be smaller if the above-mentioned jaggedness is eliminated for the characters and the image and a process called smoothing that makes the document look smooth is performed. In image creation, it is known that when creating characters and image lines in a page, the processing time changes depending on whether or not smoothing is performed.

However, when actually measured, it was found that the processing time with and without smoothing differed by only a few percent. The difference in quality is recognized by whether or not smoothing is performed when the image is displayed. Since the processing times differ by only a few percent and the difference is recognized, it is desirable to set smoothing.

Performance is improved by storing images and document files in the second storage unit 32b and the third storage unit 32c. On the other hand, the number of the second storage unit 32b and the third storage unit 32c increases every time the control unit 37 stores an image and each time the extraction unit 33 stores a document file. In the second storage unit 32b and the third storage unit 32c, the area for storing an image or a document file does not exist infinitely, but only a limited area exists. Therefore, at some point, there will be no storage area.

Therefore, by adding information on the date and time of the last use (last access date and time) to the document file or image and deleting the document file or image in the order of the oldest last access date and time, it is possible to prevent the storage area from running out. This is because the one with the oldest last access date and time is unlikely to be accessed in the future. The document file or image deletion process can be executed by a separately provided deletion processing unit.

Explaining with reference to FIG. 8, it is assumed that the document files 1 to 99 are already stored in the third storage unit 32c, and the last access date and time is oldest in order from the document file 1. Here, the document file 100 is newly stored in the third storage unit 32c. If the total capacity (size) of the document files stored in the third storage unit 32c exceeds the set size due to this storage, the document file with the oldest last access date and time will be smaller than the set size. Delete in order from 1. In the example shown in FIG. 8, the document file 1 is deleted.

For example, if the size corresponding to the excess is 10 MB, the size of the document file 1 is 5 MB, and the size of the document file 2 is 6 MB, the document file 1 alone will not be smaller than the set size. Delete 2 as well. As a result, the size can be made smaller than the set size. If the size corresponding to the excess is also 10 MB, the size of the document file 1 is 5 MB, the size of the document file 2 is 3 MB, and the size of the document file 3 is 3 MB, the document files 1 to 3 are deleted. By doing so, the size can be made smaller than the set size.

The following conditions can be adopted as the conditions for starting the deletion of document files and images. The first condition is the case where the total size of the document files stored in the third storage unit 32c exceeds the set size. As the reference size of the starting condition, a specific size such as 500 GB may be set, or a percentage such as 80% of the storage capacity of the third storage unit 32c may be set.

The second condition is a case where the total size of the images stored in the second storage unit 32b exceeds the set size. The third condition is the total size of the document files stored in the third storage unit 32c and the total size of the images stored in the second storage unit 32b at the time set in the day. Check if any of them exceeds the set size, and if any of them exceed.

The fourth condition is that, at a set time interval, either the total size of the document files stored in the third storage unit 32c or the total size of the images stored in the second storage unit 32b is determined. Check if the set size is exceeded, and if one of them is exceeded. The fifth condition is when the set number of days has passed since the last access date and time. The fifth condition is that the confirmation is performed when the set time is reached or the set time has elapsed, and the set number of days has elapsed from the last access date and time at that time. can. Since these conditions are examples, other conditions can be adopted.

FIG. 9 is a flowchart showing a flow of processing for deleting an image and a document file stored in the second storage unit 32b and the third storage unit 32c. Starting from step 900, in step 905, a timer is started to wait until a certain time elapses. In this example, the timer for 1 minute is activated. Since this time is an example, it may be 2 minutes, 3 minutes, or the like. In step 910, it is determined whether or not the time has been set, and if it has been set, it is determined whether or not the time has reached the time set in step 915. If not, the process of steps 905 to 915 is repeated until that time is reached.

If the time is not set in step 910, the process proceeds to step 920 to determine whether the time interval is set. If set, it is determined whether the time set in step 925 has elapsed. If it has not elapsed, the process of steps 905 to 925 (excluding step 915) is repeated until it has elapsed. If the time interval is not set, the processes of steps 905 to 920 (excluding step 915) are repeated until either the time or the time interval is set.

When the time set in step 915 is reached, or when the time set in step 925 has elapsed, the process proceeds to step 930 to determine whether the deletion process is set based on the last access date and time. For example, it is determined whether or not the value indicates that the deletion process is to be performed (a value of 1 or more). If the setting is set (when the value is 1 or more), the process proceeds to step 935, and the document file whose last access date and time has been set is deleted from the third storage unit 32c. Then, in step 940, the image for which the number of days for which the last access date and time has been set has passed is deleted from the second storage unit 32b. After the deletion, the process returns to step 905. Here, the document file is deleted first and the image is deleted later, but either of them may be deleted first, or they may be deleted at the same time.

If the deletion process is not set based on the last access date and time in step 930 (when the above value is 0), the process proceeds to step 945, and the total size of the document files stored in the third storage unit 32c is reached. To confirm. In step 950, it is determined whether the total size exceeds the set size, and if it exceeds, the document files stored in the third storage unit 32c are totaled in the order of the oldest last access date and time in step 955. Delete the document file until the size of is less than the set size. If not, proceed directly to step 960.

In step 960, the total size of the images stored in the second storage unit 32b is confirmed. In step 965, it is determined whether the total size exceeds the set size, and if it exceeds, in step 970, the images stored in the second storage unit 32b are totaled in ascending order of the last access date and time. Delete the image until the size is less than the set size. After the deletion, the process returns to step 905. If it does not exceed the limit, the process returns to step 905. In the processes of steps 945 to 970, the document file is deleted first and the image is deleted later, but either of them may be deleted first, or they may be deleted at the same time.

By repeatedly executing the deletion process in this way, it is possible to prevent the second storage unit 32b and the third storage unit 32c from running out of areas for storing images and document files.

The generation unit 34 executes a process of generating an image of the page specified by the page number from the document file acquired from the third storage unit 32c or extracted by the extraction unit 33. At that time, the RAM 22 is stored in the memory. And execute the process. Further, when executing the process of generating an image, the generation unit 34 uses a set of highly versatile componentized programs called a library. The memory is allocated when it is needed, such as when the process is started, and is released when it is no longer needed, such as when the process is finished.

However, when the generation unit 34 performs the image generation processing using the library, a memory that is not released is generated even if the termination processing is performed correctly. In order to completely release this unreleased memory, it is most effective to terminate the process that is performing the image generation process.

Therefore, if the amount of memory that is not released is monitored and it is determined that more memory than the set amount has not been released, the currently executing process among the multiple processes that perform the image generation process is selected as another process. By switching to the process, the memory that is not released is released. Since the process is switched, the process performing the image generation process can be terminated, and another process is started, so that the delay in the image generation process can be reduced.

Specifically, when starting the process, the generation unit 34 starts a set number of processes and initializes (reconstructs) the library for all the threads that perform the image generation process. This is to terminate the first process and then immediately start the other processes.

As shown in FIG. 10, each process includes a plurality of threads, which are processing units that can be executed in parallel. In the example shown in FIG. 10, three processes (process 1 to process 3) are started, and each process contains four threads.

When the amount of memory not released in the first process, for example, process 1 in FIG. 10 exceeds the set amount (size), the process for performing the next image generation process is switched to another process, for example, process 2 in FIG. Perform processing. That is, the process 1 is terminated and the process 2 is started.

Then, while the image generation process is being performed in the switched process 2, the first process 1 is terminated and a new process is started (restarted). After restarting, the library is initialized for the thread that performs the image generation process.

In this way, by restarting the process and initializing the library for the thread that accompanies it, the memory that is not released can be released. Further, by starting another process and executing the image generation process between the restart and the initialization of the library, the time delay until the page is displayed on the client device 10 can be reduced.

As shown by the arrow line in FIG. 10, while the process 1 is restarted, the process 2 performs the image generation process, and when the process 2 is also restarted, the process 3 may perform the image generation process. can. It should be noted that the process 3 may also need to be restarted, but since the restart of the process 1 is completed before the restart of the process 3 is required, the restart of the process 3 is completed while the process 3 is restarted. The restarted process 1 can perform the image generation process.

As described above, by providing the image, the document file and the converted electronic form file of the document file can be displayed in the same embedded font or external characters. Further, by storing the image in the second storage unit 32b and the document file in the third storage unit 32c, the image can be provided quickly and the display delay can be reduced. Further, by appropriately deleting the image stored in the second storage unit 32b and the document file stored in the third storage unit 32c, it is possible to prevent the area for storing them from running out.

So far, the present invention has been described as an information processing system, an information processing device, and a program with the above-described embodiments. However, the present invention is not limited to the above-described embodiment, and can be modified within the range conceivable by those skilled in the art, such as other embodiments, additions, changes, and deletions. .. Further, any aspect is included in the scope of the present invention as long as the action / effect of the present invention is exhibited.

Therefore, it is possible to provide a method executed by an information processing system or an information processing device, a recording medium on which the program is recorded, an external device that provides the program, and the like.

10 ... Client device, 11 ... Management server, 12 ... Network, 13 ... Data output server, 14 ... Application server, 20 ... CPU, 21 ... ROM, 22 ... RAM, 23 ... HDD, 24 ... Communication I / F, 25 ... Connection I / F, 26 ... Bus, 30 ... Conversion unit, 31 ... Request reception unit, 32 ... Storage unit, 32a ... First storage unit, 32b ... Second storage unit, 32c ... Third storage unit, 33 ... Extraction unit, 34 ... Generation unit, 35 ... Transmission unit, 36 ... File creation unit, 37 ... Control unit

Japanese Patent No. 4530572

Claims (10)

An information processing system that converts a first document file and manages the document by the converted second document file.
A conversion unit that converts the first document file into a second document file including the first document file, and a conversion unit.
A storage unit for storing the second document file and
A request receiving unit that receives a request for acquiring the document to be output from the output device or a request for transmitting the document to the output device, and
An extraction unit that extracts the first document file from the second document file stored in the storage unit for the document for which the request reception unit has received the acquisition request or the transmission request.
A generation unit that generates an image of the document from the first document file extracted by the extraction unit, and a generation unit.
Including a transmission unit that transmits the image generated by the generation unit to the output device.
The storage unit includes a first storage unit for storing the second document file and a second storage unit for storing an image of the document generated by the generation unit.
The information processing system further searches for an image of the page stored in the second storage unit based on the page information of the document obtained from the acquisition request or the transmission request, and finds the image of the page. It includes a control unit that determines whether to acquire the image or request the generation unit to generate the image depending on the presence or absence of the image.
The first document file is a document file of a document having one or more pages.
The acquisition request or the transmission request includes page identification information for identifying the page and a value calculated from the first document file.
The control unit is associated with the image identification information stored in the second storage unit based on the image identification information for identifying the image generated by using the page identification information and the value. Find the image, the presence or absence of the image by the image identification information is associated, or to acquire the image, to determine whether to request the generation of the image information processing system. When the control unit receives the image requested from the generation unit, the control unit instructs the transmission unit to transmit the requested image, and associates the requested image with the image identification information to obtain the first image. stored in the second storage unit, the information processing system according to claim 1. The storage unit includes a third storage unit that stores the first document file extracted by the extraction unit.
Upon receiving a request from the control unit to generate the image, the generation unit determines whether or not the first document file for which the image is to be generated is stored in the third storage unit. According to claim 1 or 2 , it is determined whether to generate an image from the first document file stored in the third storage unit or to request the extraction unit to extract the first document file. Described information processing system. The first document file is a document file of a document having one or more pages.
The acquisition request or the transmission request includes page identification information for identifying the page and a value calculated from the first document file.
The extraction unit is based on the file identification information for identifying the first document file generated by using the value, and the first file identification information stored in the third storage unit is associated with the first file identification information. Whether to generate an image from the first document file or request extraction of the first document file depending on the presence or absence of the first document file associated with the file identification information. The information processing system according to claim 3 , wherein the information processing system is determined. In response to a request from the generation unit, the extraction unit extracts the first document file from the second document file stored in the first storage unit, and extracts the first document. The information processing system according to claim 4 , wherein the file is stored in the third storage unit in association with the file identification information. The first document file is a document file of a document having one or more pages, and the second document file includes an image of the first page of the document.
When the request receiving unit receives the acquisition request or the transmission request of the first page of the document, the control unit causes the transmitting unit to display the image of the first page included in the second document file. The information processing system according to any one of claims 1 to 5 , which is instructed to transmit. The image stored in the second storage unit is associated with information on the date and time when it was last used.
The information processing system according to any one of claims 1 to 6 , further comprising a deletion processing unit that deletes the images from the second storage unit in chronological order of the date and time according to the set conditions. Information processing system. The deletion processing unit, as the condition, when the total storage capacity of the images stored in the second storage unit exceeds the set capacity, or when there is an image for which the set number of days has passed. The information processing system according to claim 7 , wherein the image is deleted. The storage unit includes a third storage unit that stores the first document file extracted by the extraction unit.
The first document file stored in the third storage unit is associated with information on the date and time when it was last used.
As the condition, the deletion processing unit has a first case where the total storage capacity of the first document file stored in the third storage unit exceeds the set capacity, or the set number of days has elapsed. The information processing system according to any one of claims 7 or 8 , which executes the deletion of the first document file when the document file of 1 exists. When the amount of memory that is not released in the memory used to generate the image exceeds the set amount of memory, the generation unit performs an execution process when the image is generated by a plurality of processes. The information processing system according to any one of claims 1 to 9 , which is terminated and starts a process different from the process among the plurality of processes.

Images