JP3892802B2 - Information processing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an information processing apparatus, and more particularly to an information processing apparatus having a Web server function.
[0002]
[Prior art]
In recent years, Web pages that are display data for providing various types of information on the Internet have been found to provide designs and information display formats to users. A prominent example of displaying the same information in different display formats is display in different languages. In other words, users using Web pages do not always use the same language, and generally view information in various languages. One user requests display in Japanese, and another user requests display in English, French, or the like.
[0003]
On the other hand, recently, in embedded devices such as image processing devices, the device status, stored document information, spooled jobs, address books used for FAX, e-mail, etc. are connected via a network. There are some which are provided by a web page to a terminal or the like. As an advantage of providing such information by a Web page, if there is a general-purpose Web browser on the terminal side, it is not necessary to install special software, it does not depend on the platform on the terminal side, and is not on the device side. In both cases, information can be confirmed remotely. Even in a Web page provided by such a device, it is desirable that the same information can be displayed in different languages and display formats depending on the user, as in a general Web server.
[0004]
For this purpose, it is necessary to hold in advance a resource file or the like storing a Web page or a character string to be arranged on the Web page for each language type or display format.
[0005]
[Patent Document 1]
JP-A-9-181914
[Patent Document 2]
Japanese Patent Laid-Open No. 9-244901
[0006]
[Problems to be solved by the invention]
However, in general, text data such as web pages and resource files are often input with control codes for improving readability such as line breaks, tabs, and indents. File size tends to be larger than.
[0007]
Therefore, holding a Web page or resource file for each language type or display format has a problem that it is a heavy burden for an embedded device that is strongly restricted by memory capacity.
[0008]
The present invention has been made in view of the above points, and provides an information processing apparatus capable of reducing the storage capacity required for providing display data for displaying information in various display formats. With the goal.
[0009]
[Means for Solving the Problems]
  In order to solve the above problems, the present invention,NeAn information processing apparatus for transmitting display data for displaying predetermined information on the terminal in response to a request from a terminal connected via a network, the predetermined informationFor each language typeStore andEach compressedMultiple compressed display format definition files,In response to activation of the information processing device,Among the plurality of compressed display format definition filesDecompressing the compressed display format definition file corresponding to the language used for display on the operation panel of the information processing apparatus,A file decompressing unit that generates display format definition data, and a display data generating unit that generates the display data by applying the display format definition data generated by the file decompressing unit.
[0010]
  In such an information processing apparatus, a plurality of files storing information display formats are compressed and held, and only compressed display format files that are actually necessary or highly likely to be decompressed are decompressed to display data. Therefore, it is possible to reduce the storage capacity required for providing display data for displaying information in various display formats.Also, in such an information processing apparatus, a compression format definition file that is highly likely to be used among a plurality of compressed display format definition files is decompressed in advance before receiving the first display data transmission request from the terminal. Therefore, it is possible to prevent the deterioration of the response to the request from the terminal.
[0011]
  The present invention also provides:The file decompressing means decompresses the compressed display format definition file corresponding to a request from the terminal.
[0012]
In such an information processing apparatus, when a Web page transmission request is received from a terminal, only the compressed display format definition file necessary for generating the requested display data is decompressed, so that the capacity of the storage area is saved. Can do.
[0013]
  The present invention further includes decompressed determination means for determining whether or not the compressed display format definition file corresponding to the request from the terminal has already been decompressed, and the display data generation means includes the decompressed determination means The display data is generated by applying the display format definition data based on the determination result.
[0014]
In such an information processing apparatus, when a compressed display format definition file necessary for generating display data requested from a terminal has already been decompressed, display data is generated using the decompressed display format definition data. Therefore, it is possible to prevent deterioration of the response to the terminal.
[0015]
  The present invention is also an information processing apparatus for transmitting display data for displaying predetermined information on the terminal in response to a request from a terminal connected via a network, wherein the display character string of the predetermined information is displayed. For each time zone, and a plurality of compressed display format definition files respectively compressed, and the compression corresponding to a time zone to which a time when a request is received from the terminal belongs among the plurality of compressed display format definition files A file decompression unit that decompresses the display format definition file and generates display format definition data; and a display data generation unit that generates the display data by applying the display format definition data generated by the file decompression unit. Characterized by.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, an image processing apparatus will be described as an example of an information processing apparatus. FIG. 1 is a diagram illustrating a functional configuration example of an image processing apparatus according to an embodiment of the present invention. In FIG. 1, an image processing apparatus 10 includes hardware resources for performing individual image processing such as a plotter engine 1023 and a scanner engine 1024, an engine control board 1022, an OS 1021, a system management service 1016, and a network service 1017. A memory management service 1018, an operation panel management service 1019, an engine management service 1020, and various applications such as a copy application 1011, a fax application 1012, a printer application 1013, and a web application 1014.
[0018]
The engine control board 1022 controls individual functions of the image processing apparatus 10 such as the plotter engine 1023 and the scanner engine 1024, and provides the functions of the engine control board 1022 to the OS 1021 and the like through an engine I / F (interface).
[0019]
The OS 1021 is an operating system such as UNIX (registered trademark), and executes various software implemented as applications such as a copy application 1011 and a fax application 1012 in parallel as processes.
[0020]
A system management service 1016, a network service 1017, a memory management service 1018, an operation panel management service 1019, and an engine management service 1020 are provided with their respective functions to a higher-level application such as the copy application 1011 through an API (Application Programming Interface). is there. That is, the system management service 1016 provides a function related to system management, and the network service 1017 provides a function related to network communication. The memory management service 1018 provides functions related to memory management, and the operation panel management service 1019 provides functions related to an operation panel (operation panel) installed in the image processing apparatus 10. Further, the engine management service 1020 provides a function for controlling the plotter engine 1023 and the scanner engine 1024 via the engine control board 1022.
[0021]
The copy application 1011 is a copy application, and the fax application 1012 is a facsimile application. The printer application 1013 is a printer application having a page description language (PDL), PCL, and postscript (PS). The web application 1014 is an application in which the features of the present invention are implemented, and is an application for providing various types of information to a web client connected to the image processing apparatus 10 via a network.
[0022]
Next, a first embodiment of the present invention will be described. FIG. 2 is a diagram illustrating a functional configuration example of the image processing apparatus as the Web server according to the first embodiment of the present invention. In FIG. 2, the image processing apparatus 10 includes a ROM 11, a RAM 12, an initialization program 13, a decompression program 14, a web server program 15, a web application 16, and an XSLT processor 17.
[0023]
The Web server program 15 corresponds to a program generally called HTTPd (HTTP daemon), and is for causing the image processing apparatus 10 to function as a Web server. The Web server program 15 activates the Web application 16 in response to an HTTP request from the Web client 100, and transmits a Web page in HTML format or the like generated by the Web application 16 to the Web client 100 as an HTTP response. The Web server program 15 is implemented as a part of the function of the network service 1017 in FIG.
[0024]
The web application 16 is a program that acquires or generates display information to be displayed on the web client 100 by executing processing requested by the web client 100. The Web application 16 is called from the Web server program 15, executes a predetermined process for acquiring or generating display information, and generates the processing result as display information data 210 in an XML format. In the display information data 210 generated here, language-dependent information at the time of display is described by a code for identifying the information (hereinafter referred to as “information identification code”).
[0025]
The Web application 16 further causes the XSLT processor 17 described later to convert the display information data 210 into the Web page 220 and outputs the Web page 220 to the Web server program 15. The web application 16 corresponds to the web application 1014 in FIG.
[0026]
FIG. 3 is a diagram illustrating an example of display information data generated by the Web application. FIG. 3 shows an example in which the Web application 16 outputs information related to the image processing apparatus 10 as the display information data 210. In the display information data 210, a lang element (element surrounded by a lang tag) 211 indicates in which language the web page 220 should be converted. In the present embodiment, “ja” means that it should be converted into Japanese. The web application 16 determines the value of the lang element in accordance with a request from the web client 100. That is, when the URL for the Japanese Web page is requested from the Web client 100, the value of the lang element is “ja”, and when the URL for the English Web page is requested, the value corresponds to English. A certain “en” is the value of the lang element.
[0027]
The result element 212 indicates the status of the processing result of the Web application 16. Here, “SUCCESS” indicates that the process has been completed normally. The setting element 213 is an element in which setting information of the image processing apparatus 10 is described, and includes a plurality of item elements. Each item element further includes a Name element indicating the attribute name of the setting information and a Value element indicating its value.
[0028]
That is, the item element 214 indicates that the value of the attribute “S_NAME” is “My Printer”. Similarly, it can be seen from the item element 215 and the item element 216 that the value of the attribute “S_GROUP” is “RRR” and the value of the attribute “S_COMMENT” is “Color Printer”. Here, “S_NAME”, “S_GROUP”, and “S_COMMENT” correspond to the display information identification code, and the display format differs depending on the language.
[0029]
Returning to FIG. 2, the XSLT processor 17 is called from the Web application 16 and the display information data 210 delivered from the Web application 16 is formatted in the language resource data 230 stored in the RAM 12 and the ROM 112. This is converted into a Web page according to the definition file 240.
[0030]
Here, the language resource data 230 is an XML format in which a display character string (hereinafter referred to as “display character string”) as a display format for the information identification code described in the display information data 210 is registered. It is data of. The language resource data 230 exists as one data for each language type such as Japanese, English, French and German. Therefore, in the language resource data 230 for each language type, display character strings in the respective languages are registered for the same information identification code.
[0031]
FIG. 4 is a diagram illustrating an example of language resource data for Japanese. In the description 231 of FIG. 4, it is defined that the display character string in Japanese for the information identification code “S_TITLE” is “setting”. Similarly, display character strings for “S_NAME”, “S_GROUP”, “S_COMMENT”, and “S_COND” are defined as “printer name”, “group”, “comment”, and “status”.
[0032]
FIG. 5 is a diagram illustrating an example of language resource data for English. In the description 232 of FIG. 5, it is defined that the display character string in English for the information identification code “S_TITLE” is “Settings”. Similarly, display character strings for “S_NAME”, “S_GROUP”, “S_COMMENT”, and “S_COND” are defined as “PrinterName”, “Group”, “Comment”, and “Condition”.
[0033]
The format definition file 240 is used to replace the information identification code in the display information data 210 when the display information data 210 is converted into the Web page 220 with a display character string defined in the language resource data 230. A file in which a definition and a definition for defining the layout of the Web page 220 are defined, and is implemented by XSL (eXtensible Stylesheet Language) or the like. The format definition file 240 exists as one file for each Web page format regardless of language. That is, the Web page 220 in various languages can be generated using the same format definition file 240.
[0034]
6 and 7 are diagrams showing examples of format definition files. FIG. 6 and FIG. 7 show one format definition file 240. In the description 241 of FIG. 6, an output (hereinafter simply referred to as “output”) of a character string displayed on the title bar of the Web browser of the Web client 100 to the Web page 220 is defined. However, the character string to be output is not directly written, but is defined by the information identification code “S_TITLE” as shown in the description 2411. That is, using the information identification code “S_TITLE” as an input parameter, a later-described multilingual conversion template (StringGenerator) is called, and the display character string corresponding to the information identification code “S_TITLE” defined in the language resource data 230 is the title character string. Is defined to be output as Therefore, from FIG. 4, the character string “setting” in Japanese is output as the character string to be displayed on the title bar of the Web browser from FIG. 5 in English.
[0035]
In the description 242 of FIG. 7, the output of a character string to be displayed as a title in the Web page 220 is defined. Similarly to the description 241, the description 242 corresponds to the information identification code “S_TITLE” defined in the language resource data 230 by calling a multilingual conversion template (StringGenerator) using the information identification code “S_TITLE” as an input parameter. It is defined that a display character string is output as a title character string in a Web page.
[0036]
In the description 243, the output of each item element of the display information data 210 is defined. That is, the description 2431 defines the output of the display character string for the information identification code written in the Name element in the item element. The description 2432 contains the character string written in the Value element in the item element. Output is defined. The Name element in the description 2431 is defined to output a display character string corresponding to the information identification code in each Name element defined in the language resource data 230 by calling a multilingual conversion template (StringGenerator). Has been.
[0037]
In the description 244 of FIG. 6, a multilingual conversion template (StringGenerator) is defined. In the description 2441, the name of the language resource data 230 to be used for conversion of the information identification code is specified by referring to the lang element 12 in the display information data 210. The definition in the description 2441 is an example on the assumption that the language resource file name follows the format “resource_ <character string of the lang element 12> .xml”. Therefore, the name of the language resource data 230 for Japanese is resource_ja. The name of the language resource data 230 for xml and English is resource_en. xml.
[0038]
In the description 2442, the display character string corresponding to the information identification code is retrieved from the language resource file and output.
[0039]
The XSLT processor 17 converts the display information data 210 into the web page 220 according to the format definition file 240 and the language resource data 230 described above.
[0040]
FIG. 8 is a diagram illustrating a display example of a Web page generated by applying language resource data for Japanese. In the Web browser 111 of FIG. 8, the title bar character string 112 and the Web page title 113 are displayed in Japanese as “setting”. It can also be seen that the attribute names are also displayed in Japanese as “printer name”, “group”, and “comment”. These character strings are all obtained from the language resource data 230 for Japanese.
[0041]
FIG. 9 is a diagram illustrating a display example of a Web page generated using English language resource data. In the Web browser 121 of FIG. 9, the title bar character string 122 and the Web page title 123 are displayed in English as “Settings”. It can also be seen that the attribute names are also displayed in English as “PrinterName”, “Group”, and “Comment”. These character strings are all obtained from the language resource data 230 for English. The web page in FIG. 9 is generated by applying the same format definition file 240 as the web page in FIG.
[0042]
Returning to FIG. 2, the ROM 11 is a storage device that stores a compressed language resource file 250, a format definition file 240, and the like. The compressed language resource file 250 is a file in which the language resource data 230 is compressed. Therefore, the compressed language resource file 250 exists as one file for each language type. The RAM 12 is a storage device that stores the language resource data 230 generated by decompressing the compressed language resource file 250.
[0043]
The initialization program 13 is a program that is called when the image processing apparatus 10 is activated and calls the decompression program 14. The decompression program 14 is a program for decompressing the compressed language resource file 250 stored in the ROM 11 onto the RAM 12 as language resource data 230.
[0044]
The Web client 100 is a terminal connected to the image processing apparatus 10 via a network, and includes a Web browser. Accordingly, by using the Web browser 100, the user can request the image processing apparatus 10 to transmit the Web page 220 and browse the Web page 220 transmitted from the image processing apparatus 10.
[0045]
Hereinafter, the processing procedure of the image processing apparatus 10 of FIG. 2 will be described. FIG. 10 is a flowchart for explaining processing of the image processing apparatus according to the first embodiment.
[0046]
In step S10, when the image processing apparatus 10 calls the initialization program 13 at the time of activation, the initialization program 13 calls the decompression program 14 (S11). Progressing to step S12 following step S11, the decompression program 14 obtains the language used on the operation panel of the image processing apparatus 10 from the operation panel management service 1019.
[0047]
Here, the language used on the operation panel (hereinafter referred to as “operation panel language”) is a language that is displayed on the operation panel. That is, the image processing apparatus 10 can display the operation panel in various languages. However, the image processing apparatus 10 performs display on the actual operation panel in a language previously selected by the user from a plurality of available languages. Therefore, for example, if the language usable in the image processing apparatus 10 is Japanese, English, French, German, etc., and the operation panel language is set to Japanese and English, the decompression program is set in step S12. 14 recognizes that Japanese and English are operating language.
[0048]
In step S13 following step S12, the decompression program 14 takes out the compressed language resource file 250 corresponding to the operation panel language from the ROM 11, and stores the language resource data 230 generated as a result of decompressing the compressed language resource file 250. Is reserved in the RAM 12 (S14). Progressing to step S15 following step S14, the decompression program 14 decompresses the compressed language resource file 250 and stores it in the RAM 12 as language resource data 230.
[0049]
For example, when the operation language is Japanese or English, the compressed language resource file 250 for Japanese and English is decompressed and the respective language resource data 230 is stored in the RAM 12 by the above processing. Therefore, after that, when the image processing apparatus 100 receives an HTTP request for requesting a Japanese or English Web page 220 from the Web client 100, the XSLT processor 17 uses the Japanese or English already stored in the RAM 12. The web page 220 is generated using the language resource data 230 of the above. The generated web page 220 is transmitted to the web client 100 by the web server program 15.
[0050]
As described above, according to the image processing apparatus 10 in the first embodiment, the language resource data 230 is compressed and stored in the ROM 11 as the compressed language resource file 250, so that the capacity of the ROM 11 can be saved. Further, since the language resource data 230 corresponding to all available languages is not decompressed in the RAM 12, only the language resource data 230 corresponding to the operation panel language is decompressed, so that the capacity of the RAM 12 is also saved. can do.
[0051]
In general, the user who requests the Web page 220 from the image processing apparatus 10 using the Web client 100 is often the same as the user who actually operates the image processing apparatus 10 using the operation panel. This is because the user accesses the image processing apparatus 10 in order to know information on the image processing apparatus 10 that he usually uses. Therefore, even if the compressed language resource file 250 decompressed at the time of starting is only the one corresponding to the operation panel language, the language of the Web page 220 requested by the user is almost the same as the operation panel language. The occurrence of a situation where the compressed language resource file 250 has to be decompressed anew when receiving a request can be suppressed to a low level, and deterioration of the response to the Web client 100 can also be prevented.
Note that the decompression program 14 does not necessarily have to be called from the initialization program simultaneously with the activation of the image processing apparatus 10, but the Web client 100 sends a request for transmission of the first Web page 220 (HTTP (HyperText Transfer Protocol)) to the Web server program 15. It may be called before there is a request. Therefore, for example, the Web server program 15 may call the decompression program 14 at the time of activation.
[0052]
Next, a second embodiment of the present invention will be described. FIG. 11 is a diagram illustrating a functional configuration example of an image processing apparatus as a Web server according to the second embodiment of the present invention. In FIG. 11, the same parts as those in FIG. In the image processing apparatus 10 according to the first embodiment, the initialization program 13 calls the decompression program 14 (FIG. 2). However, the image processing apparatus 10 according to the second embodiment includes the XSLT processor 17. Calls the decompression program 24 (FIG. 11). Hereinafter, the processing procedure of the image processing apparatus 10 in FIG. 11 will be described. FIG. 12 is a flowchart for explaining processing of the image processing apparatus according to the second embodiment.
[0053]
In step S <b> 20, the Web server program 15 of the image processing apparatus 10 receives an HTTP request for requesting transmission of the Web page 220 from the Web client 100. Progressing to step S21 following step S20, when the web server program 15 calls the web application 16 corresponding to the HTTP request, the web application 16 executes a predetermined process and generates display information data 210 as a processing result.
[0054]
Progressing to step S22 following step S21, the Web application 16 designates the display information data 210 and the format definition file 240 corresponding thereto to convert the display information data 210 as the processing result into the Web page 220, and the XSLT processor. 17 is called.
[0055]
Progressing to step S23 following step S22, the XSLT processor 17 refers to the lang element 211 of the display information data 210, determines the language resource data 230 necessary for generating the web page 220, and stores the compressed language resource file 250. When the decompression program 14 is requested to decompress, the decompression program 14 searches the ROM 11 for the designated compressed language resource file 250. For example, when the value of the lang element 211 of the display information data 210 is “ja”, the decompression program 14 is requested to decompress the compressed language resource file 250 for Japanese.
[0056]
In step S24 and step S25, the decompression program 14 decompresses the compressed language resource file 250 designated by the XSLT program 14 in the same procedure as the procedure in step S14 and step S15 in the first embodiment, and the language resource Data 230 is stored in the RAM 12.
[0057]
Progressing to step S26 following step S25, the XSLT processor 17 converts the display information data 210 into the web page 220 by applying the format definition file 240 and the language resource data 230 stored in the RAM 12. Progressing to step S27 following step S26, the XSLT processor 17 deletes the language resource data 230 from the RAM 12 by releasing the memory area in which the language resource data 230 is stored in the RAM 12.
[0058]
Progressing to step S28 following step S27, the web server program 15 transmits the web page 220 received from the web application 16 to the web client 100.
[0059]
As described above, according to the image processing apparatus 10 in the second embodiment, since the compressed language resource file 250 is stored in the ROM 11, the capacity of the ROM 11 can be saved. When the image processing apparatus 10 receives an HTTP request from the Web client 100, the image processing apparatus 10 decompresses only the compressed language resource file 250 corresponding to the language requested by the Web client 100 into the RAM 12, and the generation of the Web page 220 is completed. Then, since the memory area of the language resource data 230 in the RAM 12 is released, the area of the RAM 12 can be saved.
[0060]
In the image processing apparatus 10 in the second embodiment, the compressed language resource file 250 corresponding to the operation panel language is received from the Web client 100 as in the first embodiment, and a transmission request for the first Web page 220 is received. You may defrost until you do. As a result, when the Web client 100 requests transmission of a Web page in the same language as the operation panel language, a quick response can be made.
[0061]
Next, a third embodiment of the present invention will be described. FIG. 13 is a flowchart for explaining the processing of the image processing apparatus according to the third embodiment. Note that the functional configuration example of the image processing apparatus 10 in the third embodiment is the same as the image processing apparatus 10 in the second embodiment in FIG.
[0062]
In step S30, when the Web server program 15 of the image processing apparatus 10 receives an HTTP request from the Web client 100, the same procedure as that in step S21 to step S23 in the second embodiment is executed in steps S31 to S33. Call the decompression program 14.
[0063]
Progressing to step S34 following step S33, the decompression program 14 searches the cache management table for the compressed language resource file 250 requested to be decompressed, and whether the compressed language resource file 250 to be decompressed is registered in the cache management table. Judge whether or not. Although details of the cache management table will be described later, the cache management table manages a list of compressed language resource files 250 that have already been decompressed and stored in the RAM 12. If the compressed language resource file 250 to be decompressed is registered in the cache management table, that is, if it has already been decompressed in the RAM 12, the process proceeds to step S38, and if not registered, that is, if it has not yet been decompressed, step Proceed to S35.
[0064]
In step S35 and step S36, the decompression program 14 decompresses the specified compressed language resource file 250 in the same procedure as the procedure in step S24 and step S25 in the second embodiment, and stores the language resource data 230 in the RAM 12 To store.
[0065]
Progressing to step S37 following step S36, the decompression program 14 registers the decompressed compressed language resource file 250 in the cache management table.
[0066]
After step S37, in step S38 and step S39, the image processing apparatus 10 generates a web page 220 in the same procedure as steps S26 and S28 in the second embodiment, and the generated web page 220 is sent to the web client 100. Send.
[0067]
Further, details of the cache management table search and update processing in steps S34 and S37 will be described. The cache management table can be implemented using a list structure as shown in FIG.
[0068]
FIG. 14 is a diagram illustrating an implementation example of a cache management table having a list structure. In FIG. 14, the list 50 includes cache entries 501, 502, and 503. Each cache entry includes “file name” which is the file name of the compressed language resource file 250, “address on RAM” which is the address on the RAM 12 where the compressed language resource file 250 is decompressed, and “to the next entry”. As a data item.
[0069]
The details of the cache management table search and update processing when the cache management table is implemented in a list structure as shown in FIG. 14 will be described below. FIG. 15 is a flowchart for explaining cache management table search and update processing by the LRU method. Note that the flowchart of FIG. 15 corresponds to the processing from step S34 to S37 in the flowchart of FIG.
[0070]
In step S100, the decompression program 14 extracts the first cache entry from the list 50, and determines whether or not the file name of the cache entry is the same as the file name of the compression language resource file 250 to be decompressed (S101). If the file names are the same, the process proceeds to step S102, and if the file names are different, the process proceeds to step S103.
[0071]
In step S103, the decompression program 14 retrieves the next cache entry from the list 50 by referring to the “pointer to the next entry” of the cache entry that has already been retrieved. Proceeding to step S104 following step S103, the decompression program 14 determines whether or not there is no more cache entry. This determination can be made based on whether or not the value of the “next entry pointer” of the cache entry that has already been extracted is NULL, and the decompression program 14 determines that the value of “pointer to the next entry” is NULL. It is determined that there is no cache entry.
[0072]
If a cache entry exists, the process proceeds to step S101, and the file name to be decompressed is compared again with the file name of the cache entry. If the file names are the same, the compressed language resource file 250 to be decompressed has already been decompressed to the RAM 12, and thus the process proceeds to step S102, the cache entry currently being processed is changed to the top of the list 50, and the process is terminated. . Here, the reason why the cache entry to be processed is the head of the list 50 is that the cache entry for the language resource data 230 used this time is the first comparison target in the next search. When the process is terminated, the decompression program 14 extracts the address of the decompressed language resource data 230 on the RAM 12 from the cache entry and notifies the caller XSLT processor 17 of the address.
[0073]
In step S104, when a cache entry corresponding to the compressed language resource file 250 to be decompressed cannot be found in the list 50, the process proceeds to step S105, and the decompression program 14 decompresses the compressed language resource file 250 to be decompressed. Is decompressed from the ROM 11 and stored in the RAM 12. This process corresponds to step S35 and step S36 in FIG.
[0074]
Progressing to step S106 following step S105, the decompression program 14 generates a cache entry corresponding to the language resource data 230 stored in the RAM 12 in step S105 and adds it to the head of the list 50.
[0075]
Progressing to step S107 following step S106, the decompression program 14 determines whether or not the number of cache entries in the list 50 exceeds a predetermined upper limit. This upper limit may be appropriately determined according to the capacity of the RAM 12 and the like. If it does not exceed the upper limit, the processing is terminated as it is. If the upper limit is exceeded, the cache entry at the end of the list 50 is deleted, and the “pointer to the next entry” value of the immediately preceding entry is set to NULL. The process is terminated. Here, the reason for deleting the last cache entry is to delete from the RAM 12 the language resource data 230 that has not been used for the longest time. At the end of the process, the decompression program 14 notifies the caller XSLT processor 17 of the address on the RAM 12 of the newly decompressed language resource data 230.
[0076]
In FIG. 15, when the upper limit of the number of cache entries in the list 50 is exceeded, the cache entry that has not been used for the longest time is deleted, that is, the language resource data 230 that has not been used for the longest time is deleted from the RAM 12. (LRU (Least Recentry Used) method), the cache entry generated first in the list 50 may be deleted, that is, the language resource data 230 with the earliest decompression time may be deleted from the RAM 12. (FIFO (First-In First-Out) method). A flowchart in that case is shown in FIG.
[0077]
FIG. 16 is a flowchart for explaining cache management table search and update processing by the FIFO method. In FIG. 16, when the decompression program 14 finds a cache entry corresponding to the compressed language resource file 250 to be decompressed (Yes in S201), the decompression program 14 processes the cache entry without making it the top of the list 50. Exit. Further, when the compressed language resource file 250 is newly decompressed (S204) and a cache entry is generated for it, the cache entry is added to the end of the list (S205). Furthermore, when the number of cache entries exceeds the upper limit (Yes in S206), the top cache entry is deleted (SS207). As a result, the list 50 can be updated by the FIFO method.
[0078]
As described above, according to the image processing apparatus 10 in the third embodiment, the ROM 11 stores the compressed language resource file 250, which is compressed data, so that the capacity of the ROM 11 can be saved. Further, when the image processing apparatus 10 receives an HTTP request from the Web client 100, the image processing apparatus 10 decompresses only the compressed language resource file 250 necessary for generating the Web page 220 as a response to the HTTP request to the RAM 12. Space can be saved. Further, since the compressed language resource file 250 once decompressed is stored in the RAM 12 as the language resource data 230, when the same language resource data 230 is used in response to a request from the Web client 100, the response deteriorates. Can be prevented.
[0079]
In each of the above-described embodiments, the example in which the display character string is defined for each language type for the information identification code has been described. However, the scope of the present invention is to change the display character string depending on the language type. It is not restricted only to letting it do. For example, the display character string may be changed according to the time when the Web client 100 has accessed (for example, when a greeting is displayed). In this case, the compressed language resource file 250 held for each language type may be prepared for each time zone (morning resource, daytime resource, nighttime resource, etc.). Further, the display format for the information identification code may be not only a character string but also image data. In this case, the same effect as in the present embodiment can be obtained by compressing and holding the image data.
[0080]
In each of the above-described embodiments, the example in which the image processing apparatus is applied as a Web server has been described. However, the present invention may be applied to other devices that function as a Web server.
[0081]
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to such specific embodiments, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.
[0082]
【The invention's effect】
As described above, according to the present invention, it is possible to reduce the storage capacity required for providing display data for displaying information in various display formats in the information processing apparatus.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an example of a functional configuration of an image processing apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a functional configuration example of an image processing apparatus as a Web server according to the first embodiment of the present invention.
FIG. 3 is a diagram illustrating an example of display information data generated by a Web application.
FIG. 4 is a diagram illustrating an example of language resource data for Japanese.
FIG. 5 is a diagram illustrating an example of language resource data for English.
FIG. 6 is a diagram illustrating an example of a format definition file.
FIG. 7 is a diagram illustrating an example of a format definition file.
FIG. 8 is a diagram illustrating a display example of a web page generated by applying language resource data for Japanese.
FIG. 9 is a diagram illustrating a display example of a Web page generated by applying English language resource data.
FIG. 10 is a flowchart for explaining processing of the image processing apparatus according to the first embodiment;
FIG. 11 is a diagram illustrating a functional configuration example of an image processing apparatus as a Web server according to the second embodiment of the present invention.
FIG. 12 is a flowchart for explaining processing of the image processing apparatus according to the second embodiment;
FIG. 13 is a flowchart for explaining processing of the image processing apparatus according to the third embodiment;
FIG. 14 is a diagram illustrating an implementation example of a cache management table having a list structure.
FIG. 15 is a flowchart for explaining cache management table search and update processing by the LRU method;
FIG. 16 is a flowchart for explaining cache management table search and update processing by a FIFO method;
[Explanation of symbols]
10 Image processing device
11 ROM
12 RAM
13 Initialization program
14 Unzipping program
15 Web server program
16 Web application
17 XSLT processor
100 terminals
210 Display information
220 Web page
230 Language resource data
240 Format definition file
250 Compressed language resource file
1011 Copy application
1012 Fax application
1013 Printer application
1014 Web application
1016 System management service
1017 Network service
1018 Memory management service
1019 Operation panel management service
1020 Engine management service
1021 OS
1022 Engine control board
1023 Plotter engine
1024 scanner engine

Claims (4)

In response to a request from a terminal connected via a network, the information processing apparatus transmits display data for displaying predetermined information on the terminal,
A display character string of the predetermined information is stored for each language type, and a plurality of compressed display format definition files each compressed ,
When the information processing apparatus is activated, the compressed display format definition file corresponding to the language used for display on the operation panel of the information processing apparatus is decompressed from the plurality of compressed display format definition files, and the display format definition A file decompression means for generating data;
An information processing apparatus comprising: display data generation means for generating the display data by applying the display format definition data generated by the file decompression means. It said file extraction means is an information processing apparatus according to claim 1, wherein the decompressing the compressed display format definition file corresponding to the request from the terminal. Further comprising decompression determination means for determining whether the compressed display format definition file corresponding to the request from the terminal has already been decompressed;
The information processing apparatus according to claim 2, wherein the display data generation unit generates the display data by applying the display format definition data based on a determination result of the decompressed determination unit.   In response to a request from a terminal connected via a network, the information processing apparatus transmits display data for displaying predetermined information on the terminal,
  A display character string of the predetermined information is stored for each time zone, and a plurality of compressed display format definition files each compressed,
  A file decompression means for decompressing the compressed display format definition file corresponding to a time zone to which a time when a request is received from the terminal belongs among the plurality of compressed display format definition files, and generating display format definition data;
  An information processing apparatus comprising: display data generation means for generating the display data by applying the display format definition data generated by the file decompression means.

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