KR101504088B1 - Apparatus for executing web application, method thereof and computer recordable medium storing the method - Google Patents

Abstract

The present invention relates to a web application execution device, a web application execution method of the web application execution method, and a computer readable recording medium on which the method is recorded, wherein the resource file of the web application is downloaded in advance before execution of the web application, The time required for downloading the resource file can be saved when the web application is executed by executing the web application using the downloaded resource file. Therefore, the response speed of the web application can be improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a web application execution apparatus, a web application execution method thereof, and a computer readable recording medium on which the method is recorded.

The present invention relates to a web application execution technology, and more particularly, to a web application execution apparatus capable of executing a web application and downloading resources necessary for executing the web application in advance to improve the response speed, And a computer-readable recording medium on which the method is recorded.

Recently, an open application and a platform environment have been required for differentiating services while providing an open environment for a mobile communication terminal. In the initial client-server computing environment, each application had its own unique user interface for each application and had to be installed separately on each user's computer. When the server environment changed, the applications installed on the client had to be upgraded accordingly. As a result, technical support costs have increased and productivity has decreased.

On the other hand, Web pages started to express simple contents have been rapidly expanding the user base and service area because they can provide an equal level of user interface wherever the user can use a client application called a browser. At the same time, web pages are evolving into web applications that can provide users with desired services in response to user input from simple content that starts specific content. However, when executing a web application composed of a plurality of pages, the terminal must download the resource file inserted in each page and then display the downloaded file through the browser, so that the response speed of execution of the web application is slow .

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a method and apparatus for downloading a resource file, A web application executing method, a computer readable recording medium on which the method is executed, and a web application executing apparatus capable of improving a response speed by saving download time of a resource file.

According to another aspect of the present invention, there is provided an apparatus for executing a web application, the apparatus comprising: a network connection unit for connecting to a network and performing communication; A storage unit for storing the web application as a web application package as a package unit; And analyzing a source file of the web application before execution of the web application to create a download resource list which is a list of resource files that can be downloaded in advance among the resource files necessary for executing the web application, A control unit for downloading the resource file of the download resource list through the network connection unit and storing the resource file in the storage unit in the mode, and executing the web application using the downloaded resource file when the user requests to execute the web application; .

In the web application execution apparatus of the present invention, the download resource list is registered when the tag in the source file and the attribute of the tag indicate the link of the resource file.

In the web application execution apparatus of the present invention, the idle mode is a case where the network traffic of the network connection unit is less than a predetermined capacity.

In the web application execution apparatus of the present invention, the control unit may previously generate binary page data for each page of the web application using the downloaded resource file, and if there is a request for executing a web application of the user, And executes the web application by rendering the page data.

In the web application execution apparatus of the present invention, the storage unit may include information on the web application package, execution information for executing the web application differently from other web applications, and a registry for storing the download resource list.

In the web application execution apparatus of the present invention, the execution information may be a protocol scheme and an address described in the protocol scheme.

In the web application execution apparatus of the present invention, the protocol scheme is characterized by having a format of "http: //".

In the web application execution apparatus of the present invention, the address may be a domain name of a manufacturer who produced the web application or a content provider providing the web application, a web application package name which is a name of a package constituting the web application, The start page, which is the name of the source file to be executed first.

In the web application execution apparatus of the present invention, when the web application is installed, the control unit registers the execution information in the registry.

In the web application execution apparatus of the present invention, the storage unit may include a queue in which each page of the web application is sequentially input and output according to a first-in first-out method when the download resource list is created.

In the web application execution apparatus of the present invention, when generating the download resource list, the control unit sequentially inputs at least one page constituting the web application into the queue, , The download resource list is created in the order of outputted pages.

In the web application execution apparatus of the present invention, the web application package may include a content file describing the content of the web application, and an information file describing information about the web application and the package of the web application .

In the web application execution device of the present invention, the content file includes a source file representing each page of the web application and a resource file linked to the source file by a link.

In the web application execution apparatus of the present invention, the source file may include a markup language in which tags and attributes of the tags are described, a style sheet describing the styles in which the tags and the attributes of the tags are displayed on the page, And a script language for dynamically controlling the script language.

In the web application execution apparatus of the present invention, the resource file may be an individual file inserted into the page through a link in a form corresponding to the format of the resource file.

In the web application execution apparatus of the present invention, the resource file is at least one of a scene description, a video, an audio, an image, a font, text, metadata, and a script file.

In the web application execution apparatus of the present invention, the information file may include a list of files included in the package of the web application, a disclosure status and disclosure range for each file, and a setting value for setting an execution environment of the web application A configuration information file describing the configuration information, and a policy information file describing policy information for specifying a range of access authority for the web application to access the operating system of the terminal.

In the web application execution apparatus of the present invention, the web application package is stored in the storage unit as a database structure. According to another aspect of the present invention, there is provided a method for executing a web application, the method comprising: analyzing a source file of the web application before execution of the web application; Creating a download resource list that is a list of downloadable resource files; Downloading a resource file of the download resource list if the resource file is in a standby mode; And executing the web application using the downloaded resource file when the user requests to execute the web application.

In the web application execution method of the present invention, the creating may include: analyzing a tag of a start page of the web application and an attribute of the tag; And registering the address in the download resource list if the attribute of the tag is an address indicating a link of the resource file as a result of the analysis.

In the web application execution method of the present invention, when the attribute of the tag is a link of another page constituting the web application, the analyzing step and the registration The method comprising the steps of:

In the web application execution method of the present invention, the creating step may be terminated when it is determined that the capacity of the download resource list exceeds the preset capacity or when all tags of all the pages constituting the web application are analyzed .

In the web application execution method of the present invention, the downloading step may include: determining whether the web application is in the standby mode; Checking whether the resource file of the download resource list has already been downloaded if the determination result is the standby mode; And downloading the resource file that has not been downloaded as a result of the checking.

In the web application execution method of the present invention, the idle mode is characterized in that the network traffic is less than a predetermined capacity.

In the web application execution method of the present invention, the downloading may be performed until all the resource files of the download resource list are downloaded or the standby mode is terminated.

In the web application execution method of the present invention, the executing step may include generating binary page data for each page of the web application using the downloaded resource file; And executing the web application by rendering the binary page data when the user requests to execute the web application.

In the web application execution method of the present invention, the step of generating the binary page data may include the step of changing the attribute of the resource file among the attributes of the page to the path where the previously downloaded resource file is stored with reference to the download resource list ; Analyzing a source file of each page of the web application to generate a DOM tree and a style tree; Combining the DOM tree and the style tree to generate a renderer tree; Analyzing the renderer tree to generate page data; And converting the page data into a binary form to generate binary page data.

There is also provided a computer readable recording medium on which a program for executing the above-described web application executing method is recorded.

According to the present invention, it is possible to save time for downloading a necessary resource file when executing a web application by previously downloading and storing a resource file necessary for executing the web application, thereby improving the response speed of the web application to the input of the user . Accordingly, it is possible to improve the response speed to the input of the user, and to provide a user experience with no difference in the response speed as compared with the general application operating without the browser when executing the web application.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram for describing a page of a web application according to an embodiment of the present invention; Fig.
2A and 2B illustrate a web application package according to an embodiment of the present invention.
3 is a diagram illustrating a method for interpreting and executing a page of a web application according to an embodiment of the present invention;
4 is a diagram for describing a source file according to an embodiment of the present invention;
FIG. 5 is a diagram for explaining a DOM tree constructed from the source files of FIG. 4; FIG.
6 is a diagram for describing a page of a web application executed from the source file of Fig. 4; Fig.
FIG. 7 illustrates a web application execution apparatus according to an embodiment of the present invention; FIG.
8 is a flowchart schematically illustrating a method of executing a web application according to an embodiment of the present invention.
FIG. 9 is a flowchart illustrating a method of creating a download resource list according to an embodiment of the present invention; FIG.
10 is a flowchart illustrating a method for downloading a resource file in advance for executing a web application according to an embodiment of the present invention.
11 is a flowchart illustrating a method of generating each page data of a web application according to an embodiment of the present invention.
12 is a flowchart illustrating a method of executing a web application according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description and the accompanying drawings, detailed description of well-known functions or constructions that may obscure the subject matter of the present invention will be omitted. It should be noted that the same constituent elements are denoted by the same reference numerals as possible throughout the drawings.

In addition, terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary meanings, and the inventor should properly define the terms of a term in order to describe its own invention in the best way possible. It should be construed as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

First, a web application according to an embodiment of the present invention will be described. 1 is a diagram for explaining pages of a web application according to an embodiment of the present invention.

Referring to FIG. 1, a web application according to an embodiment of the present invention includes at least one page 10. 1 shows a web application composed of a plurality of pages 10. The web application operates on page 10 as a basic unit. When the web application is composed of a plurality of pages 10, when the web application is executed, any one page 10 is executed as the start page. The plurality of pages 10 are connected by a link according to the intention of the developer. When an event that causes another page 10 to be executed during execution of one of the pages 10 occurs as the web application is executed, 10) is executed.

2A and 2B are views for explaining a web application package according to an embodiment of the present invention.

FIG. 2A illustrates a web application package according to an embodiment of the present invention. 1 and 2A, a web application package includes at least one page 10, and includes a content file 100 describing the content of each page 10, information about a package of a web application and a web application, And an information file 200 describing the information. Here, the content file 100 includes a source file 110 and a resource file 120. The information file 200 includes a configuration information file 210 and a policy information file 220.

FIG. 2B illustrates an example of a source file 110 according to an embodiment of the present invention. 1, 2A and 2B, a source file 110 is a file created in a markup language (111), a style sheet (113), and a scripting language (115) The dual style sheet 113 and the script language 115 may be optionally omitted. The page 10 is represented by the source file 110 written in the above-described languages. The markup language 111 may include Hypertext Markup Language (HTML), Extensible Hypertext Markup Language (XHTML), and Extensible Markup Language (XML). The markup language 111 may include a plurality of tags It consists of attribute and general text of each tag. The style sheet 113 is a language for describing a design attribute defined by the user, that is, a style. The style sheet 113 describes styles such as font, size, color, layout, etc. of the page 10 shown by tags, attributes, and text. The page 10 using such a style sheet 113 is displayed in the same manner as described in the style sheet 113 even in a display apparatus having a different screen resolution and in a browser of a different kind. This style sheet 113 may represent CSS (Cascading Style Sheets) as an example. The script language 115 is a language for dynamically controlling a web application as a programming language. Typically, JavaScript (Java Script) can be exemplified.

The resource file 120 is various files inserted into the page 10. The resource file 120 may be inserted into the page 10 using a link tag through a programming language that describes the source file 110. [ The resource file 120 can be stored in any one of the devices on the Web and an address (URL) that can be accessed and downloaded to the resource file 120 is described as an attribute of the tag in the markup language 111 do. The resource file 120 may include a scene description, a video, an audio, an image, a font, a text, meta-data, ) File can be exemplified. Hereinafter, the resource file 120 will be described in accordance with the viewpoint of the image file, but the resource file 120 is not limited to the image file for better understanding and explanatory convenience. In addition, the resource file 120 may exist in various types other than those listed above, and may be a file of various formats. In particular, any one page 10 of another web page or other web application can be a resource file 120. [ That is, the resource file 120 includes all the individual files inserted into the page 10 of the web application through the link in a form corresponding to the format of each resource file 120.

The configuration information is the contents described in the configuration information file 210. The configuration information includes a list of files included in the package of the corresponding web application, a disclosure status and a disclosure range for each file, and a setting for setting an execution environment of the web application The value is stored. Here, the execution environment describes specifications and settings required for a web application to be executed, and includes a screen size, a CPU, a clock speed of the CPU, an operating system, a buffer type and size for input and output .

The policy information is information described in the policy information file 220 and is information for designating a range of access authority for the corresponding web application to access the operating system of the terminal, for example, a hash code. The hash code is used to verify the integrity of the web application. The hash code can be used to confirm whether or not the corresponding web application is authorized to access the operating system of the terminal.

Hereinafter, how the source file 110 and the resource file 120 described above are interpreted and displayed as a screen will be described. Programming languages can be classified into imperative description languages and declarative description languages. An imperative description language specifies the algorithm to be executed in a language that is described with a focus on "what method" the solution is to be sought and does not specify the goal. Typically, traditional Fortran, C, Java, etc. correspond to the imperative description language. Conversely, a declarative description language is a language that is described with an emphasis on explaining what the "solution" is, and it does not specify the algorithm and the goal. A source file 110 according to an embodiment of the present invention is written in a declarative description language. For example, if the source file 110 is written in HTML of a markup language, the tag and tag attributes of the HTML declare what to show in the HTML viewer, i.e., the browser. Accordingly, the procedural algorithm of the browser engine that operates the actual browser interprets the attributes of the tags and the tags and converts them into points to be displayed on the screen. To do this, the constituent elements (tags and attributes) of the source file 110 written in the declarative description language are parsed into meaningful tokens to analyze the hierarchical relationship between them, and then the sentence structure Constitute a previously determined parse tree. Each node in the parse tree can contain tags, attributes, and plain text, which declares what to show. Therefore, the browser expresses the declaration of each node according to the hierarchical relationship of the tree structure. I will explain this in more detail.

3 is a diagram for explaining a method of interpreting and executing a page of a web application according to an embodiment of the present invention.

Referring to FIG. 3, the source file 110 includes a markup language 111, a style sheet 113, and a script language 115, as described above. Here, the description of the method for interpreting the script language 115 will be omitted in order to clarify the gist of the invention.

In step S301, the markup language 111 and the style sheet 113 decompose the constituent components into meaningful tokens according to the interpretation method of the declarative description language, analyze the hierarchical relationship between them, Construct a parse tree. Here, the parse tree includes a Document Object Model (DOM) tree 310 and a style tree 320. That is, the markup language 111 is composed of a tag, an attribute of the tag, and a plain text. After the markup language 111 is decomposed, the DOM tree 310 is configured according to each hierarchical relationship. The style sheet 113 has a style that specifies the characters, margins, layout, and the like of the page 10 represented by the markup language 111, and the style sheet 113 is decomposed into a hierarchical relationship Thereby constructing a style tree 320 arranged in a tree structure.

Then, in step S303, the DOM tree 310 and the style tree 320 are combined to form a renderer tree 330. [ Then, in step S305, a layout suitable for the style is set through the analysis of the renderer tree 330, and the values of the respective attributes are arranged in the layout to generate the page data 340. [ The page data 340 is data before being rendered and displayed on the page 10.

Next, in step S307, the structure of the page data 340 is serialized and stored in a binary form. The page data stored in binary form is referred to as binary page data 350 in this manner. If the user requests to execute the page 10 in this state, the binary page data 350 is rendered and output in step S309. If necessary, step S307 of changing the data structure may be omitted. That is, the page data 340 can be directly rendered and output to the page 10.

The resource file 120 is inserted into the page 10 as an attribute of the markup language 111. Accordingly, according to the embodiment of the present invention, the attributes of the markup language 111 are analyzed, the resource file 120 is downloaded in advance, stored, and the attribute is changed to the position value of the stored file. Accordingly, it is possible to save time for downloading the resource file 120 when executing the web application. Let's take a closer look at this.

FIG. 4 is a diagram for explaining a source file according to an embodiment of the present invention, FIG. 5 is a diagram for explaining a DOM tree constructed from the source files of FIG. 4, Fig. 8 is a diagram for explaining a page of an application. Fig.

An example of the source file 110 described only in the markup language 111 is shown in Fig. As disclosed, tags according to HTML, a web standard language, and attributes of the tags are described.

Reference numeral 41 denotes a tag <img> and an attribute "src". Here, the tag <img> is a declaration for displaying an image file which is the resource file 120, and the attribute "src" declares a link (address) of the image file. It is declared that the image file "resource01.jpg" is downloaded from the attribute "http://img_server.com/resource/ resource01.jpg" and displayed on the page 10.

Reference numeral 43 denotes a tag <a>, an attribute "href", and a text "page link". Here, the tag <a> is a declaration to indicate a link of a page, and the attribute "href " declares a link (address) of the page. This link is linked to the text "page link". When a text "page link" is selected, the source file 110 of the linked page, " page02.html " is called from the attribute "file: //app-storage/page02.html" Interprets the file 110 and declares the new page 10 to be displayed.

The tag <h1> of the reference numeral 45 is for adjusting the size of the text, and accordingly, the tag <h1> is displayed on the page 10 simply as a text "not a resource file link nor a link of another page" I have declared it to be.

As described above, the tag described in the markup language 111, its attributes, simple text, and the like are parsed and converted into the DOM tree 310. [ FIG. 5 shows a DOM tree 310 in which the markup language 111 of the source file 110 of FIG. 4 is transformed. As shown, the DOM tree 310 transforms meaningful components, i.e., tags, attributes, text, etc., into one node. For example, the tag &quot; img &quot; and the attribute "src" at 41 in Fig. 4 are converted into one node, respectively, In addition, the tag <a> and attribute "href" denoted by reference numeral 43 in FIG. 4 and the "page link", which is a simple text, are each converted into one node as denoted by reference numeral 53. The tag <h1> of the reference numeral 45 and the simple text "not a resource link and not a link of another page" are converted into one node, respectively, On the other hand, in the DOM tree 310, a node whose tag has been transformed is also referred to as an element.

The transformed DOM tree 310 is combined with the transformed style tree 320 into the renderer tree 330 and the renderer tree 330 is interpreted to transform the page 10 And forms page data 340 for constitution. Also, the page data 340 may be binarized to be the binary page data 350. [ The page data 340 or the binary page data 350 may be rendered and displayed as the actual page 10. FIG. 6 shows an example of a screen on which the page 10 is displayed. A correlation between the page 10 and the DOM tree 310 will be described.

The DOM tree 310 of the reference numeral 51 represents an image such as the reference numeral 61. [ Generally, the resource file 120 is downloaded from the address "http://img_server.com/resource/resource01.jpg" and displayed on the page 10 when the web application is executed. On the other hand, according to the embodiment of the present invention, the resource file 120 is previously downloaded and stored. Then, the DOM tree 310 is configured by changing the attribute to the path where the resource file 120 is stored. Accordingly, when the web application is executed, the process of downloading the resource file 120 may be omitted and the image that is the resource file 120 may be directly displayed on the screen. Therefore, it is possible to save time for downloading the resource file 120, and thus it is possible to improve the response speed to the response of the user.

The DOM tree 310 at 53 is parsed and displayed as a link, At this time, when the user selects the text "page link "," page02.html ", which is the source file 110 of the page linked to file: //app-storage/page02.html, is executed according to the attribute.

The DOM tree 310 at 55 is interpreted to display text,

Next, an apparatus for executing a web application as described above will be described. 7 is a diagram for explaining a web application execution apparatus according to an embodiment of the present invention.

7, the apparatus for executing a web application according to an exemplary embodiment of the present invention includes a network connection unit 710, a storage unit 720, a display unit 730, an input unit 740, and a control unit 750.

The network connection unit 710 is a device for performing communication by connecting to a network. The web application execution device is connected to the web via a network. Accordingly, the network connection unit 710 connects to the network, downloads the resource file 120 according to the embodiment of the present invention, and provides the downloaded resource file 120 to the control unit 750. The network connection unit 710 may be connected to the network using at least one of a wireless and a wired connection.

The storage unit 720 is a device for storing data temporarily or semi-permanently, and refers to a memory such as a hard disk (HDD) and a memory such as a RAM (Read Access Memory).

The storage unit 720 stores a web application package according to an embodiment of the present invention. At this time, the content file 100 including the source file 110 and the resource file 120 of the web application is stored in the general area, and the information file including the configuration information file 210 and the policy information file 220 200 may be stored in the secure area. Here, the security area is an area where access is restricted, and the general area is an area that does not restrict access to the security area.

In particular, the source file 110, the resource file 120, the configuration information file 210, and the policy information file 220 according to the embodiment of the present invention may be stored in a database (DB) structure. In this case, it is preferable that the structure of the database is implemented so that one Web application package can be accessed as shown in FIG. 2A. That is, the web application package includes a content file 100 and an information file 200. The content file 100 includes a source file 110 and a resource file 120, and the information file 200 includes configuration information A file 210 and a policy information file 220. Accordingly, in order to access any one of the resource files 120, it is preferable to implement a database structure so that the web application package, the content file 100, and the resource file 120 can be accessed in this order. The storage unit 720 can functionally distinguish the stored area. That is, the storage unit 720 can be functionally classified into a registry and a queue.

The registry stores information about the web application package and the execution information of the web application, and the web application is registered in the registry accordingly. As described above, the web application package includes a source file 110, a resource file 120, a configuration information file 210, and an access information file 220. The registry includes a source file 110, a resource file 120, the configuration information file 210, the access information file 220, and the like may be described. The execution information of the web application according to the embodiment of the present invention is registered in the registry. When the web application according to the embodiment of the present invention is installed, the execution information of the web application is registered in the registry. The execution information is information for executing the corresponding web application, and consists of a protocol scheme and addresses described following the protocol scheme. Here, the address includes a domain name and a web application package name and a start page. The domain name is a domain name of a manufacturer who produced the web application or a content provider that provides the web application. The name of the web application package is the name of the package that constitutes the corresponding web application. The start page is the first name Is the name of the source file 110 describing the page 10. At this time, the start page may be omitted, and if the start page is omitted, the predetermined page replaces the start page with a default value. The registry also stores a list of download resources. This download resource list is a list of resource files 120 for downloading for each web application, and the location (address) where the resource file is downloaded and stored and whether or not the resource file is downloaded is further described. The download resource list is extracted from every page of the web application. Here, the address is an attribute of the tag indicating the resource file 110 extracted from the source file 110.

A queue is used to sequentially search each page when creating a download resource list according to an embodiment of the present invention. These queues receive and output data in accordance with a first-in first-out (FIFO) scheme that outputs the queues in the input order.

The display unit 730 displays a signal output from the control unit 750 as a screen. In particular, the display unit 730 displays the page 10 according to the embodiment of the present invention on a screen. The display unit 730 may be a touch screen. In this manner, when the display unit 730 is formed by the touch screen, the display unit 730 can perform some or all of the functions of the input unit 740.

The input unit 740 may include a plurality of input keys and function keys for receiving numeric or character information and setting various functions. The input unit 740 senses the key input of the user and transmits an input signal corresponding to the sensed key input to the control unit 750.

When installing the web application according to the embodiment of the present invention, the control unit 750 registers execution information of the corresponding web application in the registry. The execution information is information for executing the corresponding web application, and consists of a protocol scheme and addresses described following the protocol scheme. Here, the address includes the domain name, the name of the web application package, and the start page. If the start page is omitted, the pre-set page is executed as the start page with the default value. The protocol scheme according to the embodiment of the present invention is defined as "http: // ". When interpreting the protocol scheme, the control unit 750 refers to the address described after the protocol scheme, and executes the web application. Browsers can access resources through protocol schemes such as "file: //", "http: //", "https: //" If the protocol scheme is "file: //", the page is accessed by accessing the file system according to the path described following the protocol scheme. If the protocol schemes are "http: //" and "https: //" It is possible to download and execute the page 10 through the address described following the protocol scheme. Similarly, when using the protocol scheme "httpa: //" according to the embodiment of the present invention, the control unit 750 controls the corresponding page 10 in the storage unit 720 through an address or path, And executes it.

For example, when the name of the web application package is "application1.swa" and the content provider's domain name is "www.abc.com", the address is expressed as "www.abc.com/application1.swa" . In this case, the execution information of the corresponding web application is "http: //www.abc.com/application1.swa ". Accordingly, the control unit 750 searches the storage unit 720 for the web application having the web application package name "application1.swa ", and executes the web application. At this time, the control unit 750 executes the web application with the start page set as a default value set in advance. If the source file name of the web application start page is "page01.html ", the address may be expressed as" www.abc.com/application1.swa/page01.html&quot ;. In this case, execution information of the corresponding web application becomes "http: //www.abc.com/application1.swa/page01.html&quot ;. Accordingly, the control unit 750 searches the storage unit 720 for a web application having a web application package name application1.swa and executes the web application. In particular, the control unit 750 executes the web application by setting the start page to "page01.html ". On the other hand, the extension "swa" is an extension indicating that the web application package is an arbitrarily designated name.

If the web application package according to the embodiment of the present invention is stored in a database structure, the control unit 750 may use a query instead of the protocol scheme described above to generate a source file 110 describing the page 10, The file 120 may be loaded from the database and executed, or the downloaded resource file 120 may be stored in the database. For example, the query may consist of a pair of addresses describing instructions (storage or retrieval) and storage locations of the source file 110 or the resource file 120. The control unit 750 creates a download resource list when the web application is registered in the registry according to an embodiment of the present invention. The control unit 750 downloads the resource file 120 of the corresponding web application through the network connection unit 710 according to the download resource list in the standby mode. Here, the standby mode means a case where data uploading or downloading traffic through a connection with the network of the network connection unit 710 is less than a predetermined size, and it means that the network is not used. That is, even if any one of the web applications is running, when the traffic of the network is less than a predetermined size, another web application can download the resource file 120. [

Then, the control unit 750 executes the web application using the resource file 120 previously downloaded. Accordingly, it is possible to save time for downloading the resource file 120 when an actual web application is executed, thereby improving the response speed of the web application.

Next, a method of executing a web application using the above-described web application execution apparatus will be described. FIG. 8 is a flowchart illustrating a method of executing a web application according to an embodiment of the present invention.

Referring to FIG. 8, the controller 750 creates a download resource list of the web application in step S801. This download resource list is a list of the resource files 120 included as a link in the source file 110 of the web application.

In step S803, the control unit 750 sequentially downloads the resource files 120 of the download resource list in the standby mode. Here, the standby mode means a case where uploading or downloading data through a connection with the network of the network connection unit 710 is less than a preset size, and the case where the user is not using the network.

After the resource file 120 is downloaded in the standby mode, if the user requests to execute the web application, the control unit 750 displays the web application using the resource file 120 previously downloaded in step S805. . As described above, by executing the web application using the resource file 120 downloaded in advance, it is possible to save time for downloading the resource file 120. [ As a result, the response speed of web application execution can be improved.

As described above, before downloading the resource file 120 of the web application, a download resource list is created, which is a list of resource files 120 for downloading for each web application. A method for creating such a download resource list will be described. 9 is a flowchart illustrating a method of creating a download resource list according to an embodiment of the present invention. Here, a download resource list can be created for each web application through a process described below.

Referring to FIG. 9, in step S901, the controller 750 inputs a start page in the queue when the web application is executed. At this time, the control unit 750 can know the start page of the web application and the position where the start page of the web application is stored by referring to the execution information of the registry. Also, the queue first outputs the page 10 that was input first by the first-in first-out (FIFO) method.

The control unit 750 sequentially outputs the page 10 according to the first-in first-out method in step S903 and repeats steps S903 to S921 until it is confirmed that the page 10 does not exist in the queue in step S921. In addition, the control unit 750 creates a download resource list for the page 10 output from the queue through steps S905 to S919. If the controller 750 determines in step S917 that the capacity of the download resource list exceeds the predetermined capacity, the process of creating the download resource list may be terminated regardless of whether another page exists or not. The capacity of the download resource list is set differently according to the capacity of the storage unit 720. Steps S905 to S919 are repeated until the control unit 750 confirms that all the tags of the page 10 have been read in step S919.

A method of creating a download resource list for one page 10 will be described below. In step S905, the control unit 750 sequentially reads a tag in a line by line in the page 10 output from the queue and analyzes the attribute of the tag. In step S907, It is determined whether or not the link is a link of the link 120. At this time, if the attribute of the tag is the resource file 120, the controller 750 registers (adds) the address (URL) indicating the link in the download resource list in step S909. For example, referring to FIG. 4, if a tag such as reference numeral 41 exists, the attribute (address) of the tag is registered in the download resource list.

If the attribute of the tag is not a link of the resource file 120, the control unit 750 determines whether the attribute of the tag is a link of another page 10 constituting the web application in step S911. If the page 10 is a link to another page 10, the page 10 is stored in the storage unit 720. Accordingly, the control unit 750 inputs the page 10 to the queue in step S913. For example, if there is a tag such as 43 in FIG. 4, the page 10 indicated by the attribute of the tag is input to the queue.

On the other hand, if it is determined in step S907 and step S911 that the attribute of the corresponding tag is neither a link of the resource file 120 nor a link of another page 10, the control unit 750 performs no processing on the tag in step S915 . In this case, the same tag as the reference numeral 45 in FIG. 4 can be exemplified.

Then, in step S917, the controller 750 determines whether the download resource list exceeds the preset capacity. If it is determined in step S917 that the predetermined capacity is exceeded, the control unit 750 ends the process even if the tag or other page 10 to be analyzed remains. On the other hand, if it is determined in step S917 that the predetermined capacity is not exceeded, the controller 750 proceeds to step S919. In step S919, the controller 750 determines whether all tags of the page 10 have been analyzed. If it is determined in step S919 that all the tags of the page 10 have been analyzed, the controller 750 proceeds to step S921. On the other hand, if it is determined in step S919 that the tag to be analyzed remains, the controller 750 repeats steps S905 to S919.

In step S921, the controller 750 determines whether the page 10 exists in the queue. If the page 10 exists in the queue, the control unit 750 repeats steps S903 through S921. If there is no page 10 in the queue, And terminates.

A method of downloading the resource file 120 using the download resource list created as described above will now be described. The download of the resource file 120 is performed before execution of the corresponding web application. FIG. 10 is a flowchart illustrating a method for downloading a resource file in advance for executing a web application according to an embodiment of the present invention.

Referring to FIG. 10, the controller 750 assumes that the current standby mode is entered in step S1001. In the standby mode, the control unit 750 invokes the download resource list in step S1003, and sequentially inspects each resource file 120 in the download resource list in step S1005. At this time, the controller 750 determines whether the corresponding resource file 120 is already downloaded and stored in step S1007. If it is determined that the resource file 120 has not been downloaded, the control unit 750 accesses the address where the corresponding resource file 120 is stored in step S1009 and downloads the resource file 120. In step S1011, (720). On the other hand, if the check result has already been downloaded, the control unit 750 proceeds to step S1013.

In step S1013, the controller 750 determines whether there is an extra storage capacity allocated for storing the resource file 120 in the storage unit 720. [ If it is determined in step S1013 that the resource file 120 can not be further stored, the control unit 750 ends the process. On the other hand, if it is determined in step S1013 that the resource file 120 can be further stored, the control unit 750 proceeds to step S1015.

The control unit 750 determines whether the standby mode is ended in step S1015. When the standby mode is terminated, the control unit 750 ends the download process of the resource file 120. [ If it is still in the standby mode, the controller 750 determines whether all the resource files 120 in the download resource list have been downloaded in step S1017. If all the resource files 120 have been downloaded as a result of the determination, the control unit 750 ends the process. On the other hand, if the resource file 120 that has not been downloaded remains, the control unit 750 proceeds to step S1005 and repeats steps S1005 to S1015.

As described above, since the downloaded resource file 120 is stored in advance, the resource file 120 can be used as it is without downloading the resource file 120 during execution of the web application. Accordingly, since downloading of the resource file 120 is saved, the response speed of the web application is improved. A method of executing a web application using the downloaded resource file 120 will now be described.

According to the embodiment of the present invention, page data 340 or binary page data 350 is generated before being rendered and displayed on the screen. 11 is a flowchart illustrating a method of generating each page data 340 of a web application according to an embodiment of the present invention.

Referring to FIG. 11, in step S1101, the control unit 750 loads a source file 110 describing a start page of the web application. The control unit 750 refers to the download resource list in step S1103 and if the resource file 120 previously downloaded and stored exists, the control unit 750 downloads the attribute of the tag indicating the resource file 120, (120) is stored. For example, when the image file (resource01.jpg) as the resource file 120 is downloaded from the address "http://img_server.com/resource/resource01.jpg" , And the storage path is "file: //down_resource_storage/img_resource/resource01.jpg", the attribute of the tag is changed to "file: // down_resource_storage / img_resource / resource01.jpg".

In step S1105, the control unit 750 parses the components of the markup language 111 and the style sheet 113 into meaningful tokens according to the interpretation method of the declarative description language, After analysis, the structure of the sentence constitutes a parse tree already determined. That is, the control unit 750 decomposes the markup language 111 to construct the DOM tree 310, and decomposes the style sheet 113 to construct the style tree 320. The constituent components of the markup language 111 are tags, attributes, and text, and the constituent elements of the style sheet 113 are styles.

In step S1107, the control unit 750 combines the DOM tree 310 and the style tree 320 to construct a renderer tree 330. FIG. In step S1109, the controller 750 sets the layout suitable for the style through the analysis of the renderer tree 330 and arranges the values of the attributes in the layout to generate the page data 340. [ Next, the control unit 750 changes the data structure of the page data 340 to generate the binary page data 350 in step S1111.

In step S1113, the controller 750 determines whether binary page data 350 has been generated for all the pages 10 of the web application. If it is determined in step S1113 that the binary page data 350 of all the pages 10 has been generated, the control unit 750 terminates the process. On the other hand, if it is determined in step S1113 that the page 10 has failed to generate the binary page data 350, the control unit 750 determines whether the page 10 has been generated The file 110 is called up, and the above-described steps S1103 to S1113 are repeated. That is, the repetition continues until the binary page data 350 is generated using the source file 110 describing all the pages 10 in step S1113.

Next, a method of executing a web application according to an embodiment of the present invention will be described. 12 is a flowchart illustrating a method of executing a web application according to an embodiment of the present invention.

12, the control unit 750 receives a request for executing the web application through the input unit 740 in step S1201. Accordingly, the control unit 750 creates a window to be used by the corresponding web application in step S1203. In step S1205, the control unit 750 loads the binary page data 350 of the start page of the corresponding web application.

In step S1207, the control unit 750 generates a page by rendering the binary page data 350, and displays the generated page on the generated window in advance (step S1203).

During such rendering, the user can select a link of another page displayed on the page. Depending on this selection, an event may occur that displays a different page. Accordingly, the controller 750 determines whether an event for displaying another page is generated in step S1209. If the control unit 750 detects the occurrence of an event for displaying another page in step S1209, the process advances to step S1211 to fetch the corresponding page, and then repeats steps S1207 and S1209. On the other hand, if the event is not detected in step S1209, the controller 750 proceeds to step S1213.

The control unit 750 determines whether there is an event to terminate the web application in step S1213. At this time, when an event to end the web application occurs, the control unit 750 ends the process. If not, the controller 750 proceeds to step S1207 and repeats steps S1209 to S1213 described above.

As described above, according to the embodiment of the present invention, the source file is analyzed, the resource file is downloaded in advance from the address indicated by the attribute of the tag, and the attribute is changed to the stored path after storing the resource file. Then, using this, binary page data is generated in advance for each page. When there is a request to execute the user's web application, the web application is rendered by rendering the binary page data generated in advance. According to the embodiment of the present invention, it is possible to save time for downloading the resource file when the web application is executed by downloading the resource file in advance. In addition, when the web application is executed, binary page data is generated and stored in advance, which saves time for generating page data. Accordingly, when the web application is executed, its response speed can be improved.

The web application execution method according to the present invention may be implemented in a form of software readable by various computer means and recorded in a computer-readable recording medium. Here, the recording medium may include program commands, data files, data structures, and the like, alone or in combination. Program instructions to be recorded on a recording medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. For example, the recording medium may be a magnetic medium such as a hard disk, a floppy disk and a magnetic tape, an optical medium such as a CD-ROM or a DVD, a magneto-optical medium such as a floppy disk magneto-optical media, and hardware devices that are specially configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions may include machine language code such as those generated by a compiler, as well as high-level language code that may be executed by a computer using an interpreter or the like. Such a hardware device may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is self-evident to those who have knowledge. Furthermore, although specific terms are used in this specification and the drawings, they are used in a generic sense only to facilitate the description of the invention and to facilitate understanding of the invention, and are not intended to limit the scope of the invention.

The present invention relates to a web application execution device applied to various types of user devices such as a mobile communication terminal, a PMP, a PDA, a notebook, and an MP3 player, a web application execution method thereof, and a computer readable recording medium on which the method is recorded , The resource file can be downloaded and stored before execution of the web application in advance so that the corresponding resource file can be used directly without downloading the resource file during execution of the web application. This can provide a user experience with an improved response speed to the user, which is not only a possibility of commercialization or sales, but also can be practically and practically applicable.

10: Page
100: Content file 110: Source file
111: Markup Language 113: Style Sheets
115: Scripting language 120: Resource file
200: information file 210: configuration information file
220: Policy information file
310: Document Object Model (DOM) tree 320: Style tree
330: renderer tree 340: page data
350: Binary page data
710: Network connection unit 720: Storage unit
730: Display section 740: Input section
750:

Claims (28)

A web application execution apparatus comprising:
A network connection unit for performing communication by connecting to a network;
A storage unit for storing the web application as a web application package as a package unit; And
Before execution of the web application, a source file of the web application is analyzed, and a download resource list, which is a list of resource files that can be downloaded in advance among resource files necessary for executing a web application, is created and stored in the storage unit, A control unit for downloading the resource file of the download resource list through the network connection unit and storing the downloaded resource file in the storage unit and executing the web application using the downloaded resource file when the user requests to execute the web application; The web application executing apparatus comprising: The method of claim 1,
And the address is registered when the attribute of the tag and the tag in the source file indicate the link of the resource file. 2. The method of claim 1,
And the network traffic of the network connection unit is less than a preset capacity. The apparatus of claim 1, wherein the control unit
Generating binary page data for each page of the web application by using the downloaded resource file and then rendering the binary page data when the user requests execution of the web application to execute the web application. A web application execution unit. The apparatus of claim 1, wherein the storage unit
And a registry for storing information on the web application package, execution information for executing the web application differently from other web applications, and a list of download resources. 6. The method according to claim 5,
A protocol scheme, and an address described subsequently to the protocol scheme. 7. The method of claim 6,
and has a format of "http: // &quot;. 7. The method of claim 6,
A domain name of a manufacturer who produced the web application or a content provider that provides the web application,
A name of a web application package which is a name of a package constituting the web application,
And a start page which is a name of a source file to be executed first when the web application is executed. 7. The apparatus of claim 6, wherein the control unit
And registers the execution information in the registry when the web application is installed. The apparatus of claim 1, wherein the storage unit
And a queue in which each page of the web application is sequentially input and output according to a first-in first-out method when the download resource list is created. 11. The apparatus of claim 10, wherein the control unit
When generating the download resource list, sequentially inputting at least one page constituting the web application into the queue, and outputting the download resource list in order of outputted pages as the queue first outputs the inputted page The web application executing apparatus comprising: The method according to claim 1,
Wherein the web application package includes a content file describing the content of the web application, and an information file describing information about the web application and the package of the web application. 13. The content distribution system according to claim 12,
A source file representing each page of the web application, and a resource file linked to the source file by a link. 14. The method of claim 13,
And a script language for dynamically controlling the web application. The method of claim 1, wherein the attribute of the tag is an attribute of the tag, Web application execution device. 14. The method of claim 13,
Wherein the web application is an individual file inserted into the page through a link in a form corresponding to the format of the resource file. 14. The method of claim 13,
A scene description, a video, an audio, an image, a font, text, metadata, and a script file. 13. The information processing apparatus according to claim 12,
A configuration information file describing configuration information including a list of files included in the package of the web application, a disclosure status and a disclosure range for each file, and configuration values for setting an execution environment of the web application,
Wherein the web application includes a policy information file describing policy information for specifying a range of access rights for the web application to access the operating system of the terminal. The method of claim 1, wherein the web application package
Wherein the web application is stored in the storage unit in a database structure. In a web application execution method,
Analyzing a source file of the web application before execution of the web application and creating a download resource list that is a list of resource files that can be downloaded in advance among the resource files included in the source file;
Downloading a resource file of the download resource list if the resource file is in a standby mode; And
And executing the web application using the downloaded resource file when the user requests to execute the web application. 20. The method of claim 19, wherein the creating comprises:
Analyzing a tag of a start page of the web application and an attribute of the tag; And
And registering the address in the download resource list if the attribute of the tag is an address indicating a link of the resource file as a result of the analysis. 21. The method of claim 20,
Further comprising the step of analyzing and registering the other page if the attribute of the tag is a link of another page constituting the web application as a result of the analysis How to do it. 20. The method of claim 19, wherein the creating comprises:
When the capacity of the download resource list is judged to exceed the preset capacity or when all the tags of all the pages constituting the web application are analyzed, the method ends. 20. The method of claim 19, wherein the downloading comprises:
Determining whether the mode is the standby mode;
Checking whether the resource file of the download resource list has already been downloaded if the determination result is the standby mode; And
And downloading a resource file that has not been downloaded as a result of the checking. 24. The method of claim 23, wherein the standby mode
Wherein the network traffic is less than a predetermined amount. 20. The method of claim 19, wherein the downloading comprises:
Wherein the downloading of the resource file is performed until all resource files of the download resource list are downloaded or the standby mode is terminated. 20. The method of claim 19, wherein the performing
Generating binary page data for each page of the web application using the downloaded resource file; And
And executing the web application by rendering the binary page data when the user requests to execute the web application. 27. The method of claim 26, wherein generating the binary page data comprises:
Changing an attribute of the resource file among the attributes of the page to a path where the resource file is downloaded before referring to the download resource list;
Analyzing a source file of each page of the web application to generate a DOM tree and a style tree;
Combining the DOM tree and the style tree to generate a renderer tree;
Analyzing the renderer tree to generate page data; And
And converting the page data into a binary form to generate binary page data. A computer-readable recording medium having recorded thereon a program for executing the web application execution method according to any one of claims 19 to 27.

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