KR20080038903A - Method and apparatus for dynamic cach service on internet - Google Patents

Abstract

A method and a device for providing a dynamic cache service on the Internet are provided to shorten a service time and increase processing capacity of a server by enabling the server to provide a cache function from an information providing service changed in real-time or periodically through the Internet. A web application server(206) extracts/transfers a terminal ID to a template loader(208) by receiving terminal information and a service request from a terminal(202). The template loader extracts a template(210) corresponding to the service request/terminal ID, and analyzes/divides contents registered to the template into static and dynamic data areas. A service loader(214) generates/transfers service information for the data areas to a service storing part(220) by loading a database/information file(218). An information monitoring part(216) deletes a present data source stored in an information cache when a dynamic data source is changed in the database/information file, and transfers the changed data source to the service storing part when the service information is requested again.

Description

METHOD AND APPARATUS FOR DYNAMIC CACH SERVICE ON INTERNET}

1 is a block diagram showing a web browser and a web server according to the prior art;

2 is a block diagram showing an Internet cache service structure according to an embodiment of the present invention;

3 is a diagram illustrating an internet cache generation procedure according to a preferred embodiment of the present invention;

4 is a diagram illustrating a procedure of changing cache information through monitoring according to a preferred embodiment of the present invention;

5 is a diagram illustrating a request service providing procedure of a terminal according to an exemplary embodiment of the present invention.

The present invention relates to a technology for providing a cache service in the Internet, and more particularly, to a method and apparatus for dynamic cache service in the Internet suitable for serving a dynamic cache in the wireless Internet.

Today, the Internet is popularized and can be accessed anywhere in the world through most communication devices and portable terminals, so that anyone can use it easily.

Hereinafter will be described in detail with reference to the drawings.

1 is a block diagram illustrating a web browser and a web server according to the prior art.

Referring to FIG. 1, a web browser 102 in a communication device or portable terminal communicates with a web server 106 via a communication link 104. Such a communication link may typically be a connection via a local area network connection, a wireless network connection, a telephone line, or the like, and the web browser 102 may be connected to the web server 106 using the Transmission Control Protocol / Internet Protocol (TCP / IP). Communicate In this case, when the web browser 102 requests data from the web server 106, the web server 106 provides the data about the data to the web browser 102, and the web browser 102 caches the received data. Save it to As a result, upon repeated access to the web server 106, data is first received from the cache, thereby quickly executing the Internet, and using traffic efficiently. In addition, the changed data is received by re-requesting data from the web browser 102 to the web server 106.

As illustrated in FIG. 1, Internet sites that enable a plurality of accesses through data transmission and reception between the web browser 102 and the web server 106 include a variety of contents and provide a portal for searching, personal homepage, news, shopping, and the like. It is operated as a site. Service information that is changed at an unspecified period in such portal sites is inevitably increased, and server resources required to reproduce such information are also increasing. As a result, sites that exceed traffic due to frequent user visits are addressing the traffic overflow through the expansion of server resources.

In the conventional web browser and web server operating as described above, devices and portable terminals capable of accessing the Internet are increasing exponentially, but the browser in the terminal is updated by re-requesting data to the web server in a conventional manner. By receiving this information, the amount of data per request and the number of communication requests sent over a wireless connection are increasing more than necessary, and increasingly causing a shortage of web server resources, but at present there is a different response. There is no situation.

The present invention is to overcome the limitations of the prior art described above, by providing a cache function in the server for the information providing service that is changed in real time or periodically using the Internet to reduce the service time provided to the user and the processing capacity of the server The purpose of the present invention is to provide a method and apparatus for dynamic cache service on the Internet that can improve the performance of the service.

Another object of the present invention, through the separate monitoring for information that can be dynamically changed in the Internet by deleting the existing cache when changing the information in the Internet that can enable the delivery of the changed information when the service re-request from the terminal To provide a dynamic cache service method and apparatus.

An embodiment method of the present invention is a dynamic cache service method on the Internet, the method comprising receiving user terminal information and service request information from a terminal in a web application server, and transmitting the information to the template loader in the web application server. And extracting the template information corresponding to the user terminal information and the service request information from the template list of the template loader and dividing the extracted template information into a static data region and a dynamic data region. Calling a service loader to process a service corresponding to a data area; generating service information and meta information corresponding to the static / dynamic data area from the called service loader through a database and information files in a server; , The generated service information and The process of the other information in the cache, the service information storage unit and the cache unit at the same time and stored in, and includes the step of delivering the generated information in the service loader to the terminal.

Another embodiment of the present invention is a dynamic cache service apparatus on the Internet, and receives terminal specific information and service request information from a terminal, extracts a terminal identification number, and uses the template loader to extract the extracted terminal identification number and service request information. Extracting the web application server and the template information corresponding to the service request information and the terminal identification number, and analyzing the contents registered in the template to separate the static data region and the dynamic data region, and separate the static and The template loader requesting the service loader for processing the service information generation for the dynamic data area and the service information for the static and dynamic service areas registered in the template are loaded and generated from the database and the information file. A service loader for transmitting to a service storage unit; Periodically checking whether the dynamic data source has been changed in the database and the information file, and if changed, the existing dynamic data source stored in the information cache unit is deleted, and the changed data source is stored when re-requesting service information from the terminal. And a service storage unit for storing the static / dynamic service information generated from the service loader and the changed dynamic data source received from the information monitoring unit, the service information requested from the terminal in the service storage unit, When the changed dynamic data is delivered, at the same time, the cache is cached for the information to be delivered. When the service re-request is received from the terminal, the cache is searched for the stored service information and transmitted to the terminal. Service device.

Hereinafter, the operating principle of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

The present invention provides an architecture that can provide a cache service even for dynamic content by overcoming the limitations on existing static content, and to enable more diverse content to operate regardless of the logical configuration of the process. will be.

In addition, the present invention provides a cache function for the static area by defining a template that can divide the service area dynamically provided to the user into the real dynamic area and the substantially static area with respect to the area of the content provided on the actual wireless Internet. For dynamic domains, service efficiency is increased by invoking dynamic modules that can be configured to provide services that customers want. In addition, by providing a file service through the server cache function for the information that does not change within the corresponding change period by checking the change cycle for the provided dynamic region, it provides a base process that can provide dynamic information as static information.

2 is a block diagram showing an Internet cache service structure according to an embodiment of the present invention.

Referring to FIG. 2, the server 204 may be a web application server (hereinafter referred to as a WAS) 206, a template loader 208, a template list 210, a service loader 214, Information monitoring unit 216, DB and information file 218, the service storage unit 220, the information cache unit 212. Specifically, the terminal 202 capable of accessing the Internet transmits terminal specific information and service request information to the server 204. The WAS 206 is a process that can serve as a container for running a specific application on the web. The WAS 206 provides a function in connection with a web server and independently functions as a web server. The service request information received from the terminal is transmitted to the template loader 208. When the service re-request information is received from the terminal, the service re-request information is transmitted to the information cache unit 212.

The template loader 208 retrieves the template information corresponding to the service requested by the user from the template list 210, divides the template information into a static domain and a dynamic domain, and delivers the template information to the service loader 214. The template list 210 is a document standard that supports a specific format set by user definition and provides a separation function between a dynamic area and a static area defined by a service.

The information cacher 212 retrieves the stored service information and delivers the service information requested from the terminal.

The service loader 214 is for processing a service requested by a user. The service loader 214 loads service information about a static and dynamic service area registered in a template from a database (DB) and an information file in the server 204. Transfer to the storage unit 220.

The information monitoring unit 216 checks whether the dynamic data source has been changed from the DB and the information files 218 including the data source information to be serviced, and changes the specific dynamic data source to the specific dynamic data source stored in the existing cache. Instructs to delete and transfers the changed data source to the service storage unit 220 when there is a service information reload request from the terminal. In addition, by checking a preset change cycle for the provided dynamic data source, the dynamic information may be provided as static information by providing a file service through the information cache unit 212 for information that does not change within the corresponding change cycle. Provide a foundation process.

The service storage unit 220 stores the generated static / dynamic service information and simultaneously stores the changed dynamic data source received from the generated static / dynamic service information and information monitoring unit 216. 212). The information cache unit 212 caches the received static / dynamic service information and the dynamic data source, and deletes the corresponding cache when an existing cache deletion command is received from the information monitoring unit 216.

3 is a diagram illustrating an internet cache generation procedure according to a preferred embodiment of the present invention.

Referring to FIG. 3, in operation 312, the terminal 302 accesses the WAS 304 and user agent information including user terminal information together with service information requested by the user in a browser provided by the terminal 302. To the WAS 304. In step 314, the WAS 304 extracts user information. The WAS 304 extracts terminal identification number (MIN) information and service information requested by the user from the information received from the terminal 302.

In step 316, the WAS 304 requests the template loader 306 to process the user request service. In step 318, the template loader 306 extracts template information corresponding to the requested service and customer terminal information from the template list managing the template information, and analyzes the contents registered in the template in step 320 to analyze the static data area and the dynamic data area. Detach and extract the services to call.

Thereafter, in step 322, a service processing request for generating service information is requested, and a service processing module corresponding to the dynamic data area, that is, a service loader 308 is called. In step 324, the service loader 308 generates service information by a defined service generation module (DB and an information file), and generates meta information about corresponding service information. The meta information includes information such as source data information, service information, and service creation date, which are original data for generating service information.

In operation 326, the service loader 308 stores the generated service information and meta information in the service storage 310, and transmits the stored information to be cached in the information cache. In operation 328, the service loader 308 transmits the generated information to the WAS 304, and in operation 330, the WAS 304 transmits the generated information transmitted to the terminal 302.

4 is a diagram illustrating a procedure of changing cache information through monitoring according to a preferred embodiment of the present invention.

Referring to FIG. 4, in step 410, the information monitoring unit 404 retrieves source data, which is original data to be provided by the service, from the DB and the information file unit 402, and service related information using the source data. For this reason, set source data information to be monitored and service information to be changed. In step 412, the information monitoring unit 404 monitors the set DB and source data to check in real time whether the corresponding data has changed.

In step 414, the information monitoring unit 404 determines whether the data has been changed. In the case of DB, when a specific record of a specific table is changed, or in the case of source data, the update time of corresponding data is changed or the data is changed. If deleted.

In such a case, when the service message 406 deletes the service information generated in relation to the changed source data in step 416, the service storage unit 406 deletes the previous service information based on the requested message. do. The information cache unit also deletes service information generated in association with the changed source data.

5 is a diagram illustrating a request service providing procedure of a terminal according to an embodiment of the present invention.

Referring to FIG. 5, in step 510, the terminal 502 accesses the WAS 504 and delivers user agent information including user terminal information together with service information requested by the user in a browser provided by the terminal 502. In step 512, the WAS 504 extracts MIN information and user-requested service information from the information received from the terminal 502. In step 514, the WAS 504 requests the information cache unit 506 to process the corresponding service.

In step 516, the information cache unit 306 searches whether the service information requested from the WAS 504 is registered in the cache, and if the corresponding information does not exist, the information cache unit 306 generates the information to be output to the terminal to the service storage unit 508. request. In step 518, the requested service information is extracted from the service storage unit 508 and transferred to the information cache unit 306. In step 520, the requested service information is transferred from the information cache unit 306 to the WAS 504. In step 522, and finally delivers to the terminal 502. However, if the requested service information is registered in the information cache unit 306 in step 516, the information about the service information is extracted and transmitted to the terminal 502.

As described above, the present invention provides an architecture that can provide a cache service even for dynamic content by overcoming the limitations on the static content provided previously, and more diverse content regardless of the logical configuration of the process. Can operate.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by those equivalent to the scope of the claims.

In the present invention operating as described in detail above, the effects obtained by the representative ones of the disclosed inventions will be briefly described as follows.

The present invention caches dynamic service information that changes at an unspecified period, thereby saving server and application resources required to reproduce such information, and shortening the response time for the same service to customers. It has the effect of providing benefits.

Claims (10)

As a dynamic cache service method on the Internet, Receiving user terminal information and service request information from a terminal in a web application server; Delivering the information to the template loader in the web application server; Extracting template information corresponding to the user terminal information and the service request information from the template list of the template loader, and separating the extracted template information into a static data region and a dynamic data region; Calling a service loader to process a service corresponding to the separated static / dynamic data region; Generating, by the called service loader, service information and meta information corresponding to the static / dynamic data region through a database and information files in a server; Storing the generated service information and meta information in a service storage unit and simultaneously caching them in an information cache unit; The process of delivering the information generated by the service loader to the terminal Dynamic cache service method on the Internet comprising a. The method of claim 1, The method, Setting source data information to be monitored and service information to be changed from the database and information files; Checking in real time whether the set source data has been changed; If the source data is changed, requesting a service storage unit to delete service information generated in association with the source data; Requesting to delete the generated service information from the service storage unit to the information cache unit; Dynamic cache service method on the Internet, characterized in that it further comprises. The method of claim 2, The method, And when the source data is changed, a specific record of a specific table is changed in the database, an update time of the source data is changed, or data is deleted. The method of claim 1, The method, Receiving the re-request service information from the terminal at the web application server; Transferring the information received from the web application server to the information cache unit; Retrieving service information re-requested from the information cache unit; When the re-requested service information is retrieved, transferring the retrieved information to the terminal Dynamic cache service method on the Internet, characterized in that it further comprises. The method of claim 4, wherein The method, If the re-requested service information is not found, searching for the re-requested service information in a service storage unit; The process of delivering the retrieved service information to the terminal Dynamic cache service method on the Internet, characterized in that it further comprises. The method of claim 1, The meta information is, Dynamic cache service method on the Internet, characterized in that it comprises source data information which is the original data for generating the service information, service information, service creation date. As a dynamic cache service device on the Internet, A web application server receiving terminal unique information and service request information from a terminal, extracting a terminal identification number, and delivering the extracted terminal identification number and service request information to a template loader; Extracting the template information corresponding to the service request information and the terminal identification number, and analyzing the contents registered in the template to separate the static data area and the dynamic data area, and generate service information for the separated static and dynamic data area A template loader requesting processing to the service loader, A service loader for loading and generating service information on a static and dynamic service area registered in the template from a database and an information file, and delivering the generated service information to a service storage unit; Periodically checking whether the dynamic data source has been changed in the database and the information file, and if changed, the existing dynamic data source stored in the information cache unit is deleted, and the changed data source is stored when the service information is requested from the terminal. An information monitoring unit to deliver A service storage unit for storing the static / dynamic service information generated from the service loader and the changed dynamic data source received from the information monitoring unit; When the service storage unit transfers the service information requested from the terminal and the changed dynamic data, the service storage unit caches the information simultaneously delivered. When receiving the service re-request from the terminal, the service storage unit retrieves the stored service information. Dynamic cache service apparatus on the Internet including an information cache to be delivered to. The method of claim 7, wherein The web application server, Dynamic cache service apparatus on the Internet, characterized in that for transmitting the service re-request information received from the terminal to the information cache. The method of claim 7, wherein The information monitoring unit, Dynamic cache service apparatus on the Internet, characterized in that for checking the change period for the set dynamic data source and the dynamic data source that does not change within a predetermined change period is delivered to the information cache unit as static data. The method of claim 7, wherein The service storage unit, And store the static / dynamic service information and the changed dynamic data source and simultaneously deliver the static / dynamic service information to the information cache unit.

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