KR101182047B1 - Atom based feed reader system using feed query and method thereof - Google Patents

Abstract

PURPOSE: A system for a feed reader based on an ATOM using a feed query and a method thereof are provided to request only updated contents after final confirmation in a client position through a reference of an ATOM base, thereby reducing parsing contents of the client position and network traffic of a server. CONSTITUTION: A web server(120) provides a syndication service with an ATOM reference using a protocol of the HTTP base. A feed reader module(131) of a feed reader system(130) receives feed information related to contents from the web server corresponding to a registered web site address. A feed query module(132) of the feed leader system requests contents updated in the web server through a query using updated information of the feed information.

Description

ATOM based feed reader system and method using feed query {ATOM BASED FEED READER SYSTEM USING FEED QUERY AND METHOD THEREOF}

Embodiments of the present invention relate to an ATOM based feed reader system and method for providing a content syndication service on the web using the ATOM standard.

Content Syndication means that information providers who deal with frequently updated information can use some or all of the site's content in other services to provide convenient access to users who want their information. Means that. Syndicated content (or feed) consists of the content itself and metadata. These feeds can contain only headline content, only links to content, or include the entire content of your site.

The use of such a method as Really Simple Syndication (RSS) is rapidly increasing for content syndication on the Web. In other words, the RSS service is composed of a form in which the user who wants specific information such as the title of the updated article, the link, the main content, and the like receives the updated data without visiting the web site. Therefore, the user can easily know the latest conversion contents of the site even without visiting the site. These RSS services provide information providers with RSS feeds in extensible markup language (XML) format that contain updates of information, and users can register the site's address in an RSS reader program installed on their computer without visiting the website. You can easily see the updated information.

Meanwhile, in the case of a reader program for subscribing to an RSS feed, an RSS web service in the form of proxy has recently been activated. The initial client program (Desktop) application type is changing to proxy type web service due to problems such as processing speed and network usage due to increase in RSS feed subscription volume.

The existing RSS method reads the entire XML document of the RSS feed from the RSS reader, constructs an XML Document Object Model (DOM) tree, and compares the update with the corresponding RSS data through the XML DOM tree. You can check the contents that you do not have. However, due to such a service structure, there is a problem that the entire unnecessary RSS file must be downloaded every time. Therefore, there is a need for research on how the RSS reader can request only the unread portion and respond from the information provider.

ATOM-based feed reader system that can query the feed reader for unread parts by using the latest data information of proxy through ATOM-based standard, and provide updated data from the information provider. A method is provided.

A feed reader system for collecting content in a web server providing a syndication service, the feed reader system comprising: a feed reader module for receiving and storing feed information related to content from a web server corresponding to a web site address registered by a service user; And a feed query module for requesting updated update contents to a web server through a query using update information of feed information. At this time, the feed reader system is composed of a proxy type server, the web server provides a syndication service by the ATOM standard using the HTTP-based protocol. In addition, the update information means information for identifying the update time of the feed information.

According to one side, the feed query module generates an HTTP request message with the update information as an HTTP GET parameter and transmits to the web server.

According to another aspect, the web server recognizes the update information in the HTTP request message, and then generates feed information related to the updated update content based on the update information and transmits the feed information to the feed reader system through the HTTP response message.

According to another aspect, the web server allocates new update information to the generated feed information and transmits the assigned update information to the feed reader system through an HTTP response message.

A feed reader method of a feed reader system for collecting content in a web server providing a syndication service, the feed reader method comprising: a feed reader step of receiving and storing feed information related to content from a web server corresponding to a web site address registered by a service user; And a feed query step of requesting updated update contents to a web server through a query using update information of the feed information. At this time, the web server provides the syndication service by the ATOM standard using the HTTP-based protocol. In addition, the update information means information for identifying the update time of the feed information.

Through ATOM-based standard, it is possible to reduce network traffic on the server side and parsing content on the client side by requesting only the updated contents after the final confirmation from the client's point of view. In particular, web service companies that need to update large amounts of content may have more effective features.

1 illustrates a feed reader system for collecting RSS content based on ATOM according to an embodiment of the present invention.
2 is a diagram for describing a process between a web server providing RSS content and a feed reader system for requesting updated content through a query according to an embodiment of the present invention.
3 is a block diagram illustrating an internal configuration of a web server that provides updated contents in response to a request of a feed reader system according to an embodiment of the present invention.
4 is a flowchart illustrating a feed reader system side requesting updated content through an ATOM-based feed query according to an embodiment of the present invention.
FIG. 5 is a flowchart illustrating a web server side providing updated contents in response to a request of a feed reader system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 illustrates a feed reader system for collecting RSS content based on ATOM according to an embodiment of the present invention. 1 shows a feed reader system 130 connected via a network with a service user 110 and a web server 120.

The service user 110 refers to a communication terminal of a user who wants to subscribe to syndicated content (hereinafter, referred to as 'RSS content'), and all communication terminals that can be connected to the feed reader system 130 through a network are applicable. Can be.

The web server 120 provides a content syndication service on the web, and may provide a syndication service according to the ATOM standard using an HTTP-based protocol. In other words, the web server 120 has an ATOM address, which is a unique syndication address, and may provide feed information related to RSS content according to an XML document format for syndication of the content.

The feed reader system 130 may be configured as a proxy server to provide a web service in the form of proxy to the service user 110. In other words, the feed reader system 130 collects RSS content from the web server 120 supporting ATOM based syndication service and delivers the collected RSS content to the service user 110. In addition, the feed reader system 130 requests the feed information of the updated RSS content (hereinafter referred to as "update content") to the web server 120 through a query using the latest data information it has. Do it together. On the other hand, the feed reader system 130 may be built in a form that is installed in the service user 110, not a proxy form. In this case, the feed reader system 130 may refer to a communication terminal for driving the RSS reader program of the function provided in the present embodiment.

As illustrated in FIG. 1, the feed reader system 130 may include a feed reader module 131 and a feed query module 132.

The feed reader module 131 collects feed information related to the RSS content from the web server 120 corresponding to the web site address registered by the service user 110. In this case, the feed information may include only a title or a unique address of the content, or may include substantially entire contents of the content. The feed reader module 131 accesses the web server 120 to receive and store RSS content in a pull or push manner, and then provide the content to the service user 110 requesting the service. Can be.

The feed query module 132 may request update content of the web server 120 using a query based on the update information about the feed information. A feed conforming to the ATOM standard has an ATOM_ID and an ATOM_Updated value for each item (ie, content) of the feed. At this time, ATOM_ID means a unique value for identifying the content, and ATOM_Updated means a time when the content is generated. In the present embodiment, the content ID ATOM_ID and the generation time ATOM_Updated of the content may be used as update information (hereinafter referred to as 'ID information') for identifying the update time of the feed information. That is, the feed query module 132 may request the content generated after the ATOM_ID and ATOM_Updated of the ID information by sending ID information to the web server 120 when the update content request. For example, when the ATOM_ID is constantly increased, the feed query module 132 may use a combination of the largest ATOM_ID value and the most recent ATOM_Updated value. Here, the feed query module 132 may request only the updated content, not the entire content of the web server 120 by using an HTTP GET command which is a method of delivering data using a query-string.

2 is a diagram for describing a process between a web server providing RSS content and a feed reader system for requesting updated content through a query according to an embodiment of the present invention.

In step 201, when the feed reader system 230 first requests feed information of RSS content to the web server 220 to which the service user has subscribed, the web server 220 feeds feed information about the entire contents of the site. Provided to reader system 230 (202).

Thereafter, the feed reader system 230 may extract ID information from recently obtained feed information from the web server 220 (203). The feed reader system 230 generates an HTTP request message using ID information as an HTTP GET parameter, and then transmits the HTTP request message to the web server 220 (204). In this case, the web server 220 may check the ID information through the HTTP request message, and generate the feed information related to the updated content by checking the updated content that has been updated based on the ID information (205). Accordingly, the web server 220 may transmit a response to the HTTP request message to the feed reader system 230 for the updated content instead of the entire content of the site (206).

3 is a block diagram illustrating an internal configuration of a web server that provides updated contents in response to a request of a feed reader system according to an embodiment of the present invention. As illustrated in FIG. 3, the web server 300 may include a file system 310, an HTTP analyzer 320, a feed history recorder 330, a feed updater 340, and an HTTP response unit 350. Can be.

The file system 310 serves as a database for maintaining the HTTP-based document corresponding to the RSS content. In this case, the file system 310 may provide a polling function for updated content.

The HTTP analyzer 320 may check ID information of feed information finally confirmed by the feed reader system through an HTTP request message received from the file reader system. For example, the HTTP analyzer 320 may extract the ID information corresponding to the HTTP GET by analyzing the HTTP header of the HTTP request message. In addition, the HTTP analyzer 320 may check whether there is an update of the RSS content after the update time corresponding to the ID information, and may request feed information generated after the update time.

The feed history recorder 330 may allocate ID information to the feed information generated when the feed information for the RSS content is generated. Therefore, the feed history recorder 330 may check the ATOM_ID and ATOM_Updated values corresponding to the ID information identified by the HTTP analyzer 320.

The feed updater 340 may generate new feed information for updated content by polling ATOM_ID corresponding to ID information and updated content updated after ATOM_Updated among contents stored in the file system 310. At this time, the feed history recording unit 330 allocates new ID information to the newly generated feed information and records the new ID information. Accordingly, the feed updater 340 may generate the feed information of the update content as a file according to a request of the HTTP analyzer 320, and then read the feed content of the address value by returning the address value of the corresponding feed.

The HTTP response unit 350 may include new ID information (Updated + ID) in the newly generated feed information for the update content and transmit the new response information to the feed reader system through the HTTP response message.

According to the above configuration, the feed reader system according to an embodiment may request only the update content, not the entire content of the site through a query using ID information included in the feed information of the RSS content. In this regard, the web server 300 may identify and provide updated content, that is, content that the feed reader system does not have, after the feed reader system finally checks the RSS content through ID information received from the feed reader system. .

4 and 5, a feed reader method using a feed query according to an embodiment will be described. In the feed reader method according to the present embodiment, respective steps may be performed by the web server 120 and the feed reader system 130 described with reference to FIG. 1.

First, FIG. 4 illustrates a flowchart of a feed reader system 130 that requests update content to a web server 120 through a feed query.

In step 410, the feed reader system 130 receives and stores feed information about the entire contents of the site from the web server 120 in the initial step of requesting the feed information of the RSS content subscribed to by the service user for the first time. . Feed information provided from the web server 120 includes ID information (Updated + ID).

In operation 420, the feed reader system 130 extracts ID information of the feed information from the recently obtained feed information.

In operation 430, the feed reader system 130 generates an HTTP request message using the ID information as an HTTP GET parameter, and then transmits the HTTP request message to the web server 120. At this time, the feed reader system 130 may request only the updated content, not the entire content of the site through a query using the ID information of the feed information.

In operation 440, the feed reader system 130 may receive feed information related to the updated content through the HTTP response message received from the web server 120 in response to the HTTP request message.

5 illustrates a flowchart of a web server 120 that provides updated content in response to a request of a feed reader system.

In step 510, the web server 120 receives the HTTP request message from the file reader system 130 and checks the HTTP GET METHOD in the HTTP request message to obtain the ID information of the feed information finally delivered to the feed reader system 130. You can check it.

In operation 520, the web server 120 generates feed information on updated contents that have been recently updated based on ID information. That is, the web server 120 may generate feed information of the updated content after the update time corresponding to the ID information. In this case, the web server 120 may allocate new ID information to the feed information generated when the feed information for the RSS content is generated.

In operation 530, the web server 120 may include the new ID information in the newly generated feed information for the updated content and deliver the new ID information to the feed reader system 130 through an HTTP response message. In other words, the web server 120 may receive a query using the ID information of the feed information from the feed reader system 130 and respond to the updated content that the feed reader system 130 does not have.

As described above, according to embodiments of the present invention, by requesting / responding only update data of RSS content, it is possible to reduce the network bandwidth of the server side when utilized in the feed type feed reader system in the form of web service. In addition, by requesting / responding only the update data of RSS contents, it can be utilized for updating the updated broadcasting information in the client environment such as smart TV. Can be reduced.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

120: web server
130: feed reader system
131: feed reader module
132: feed query module

Claims (9)

A feed reader system that collects content from a web server that provides a syndication service,
The web server comprises:
Providing the syndication service by the ATOM standard using the HTTP-based protocol,
The feed reader system,
A feed reader module for receiving and storing feed information related to the content from the web server corresponding to a web site address registered by a service user; And
Feed query module for requesting the updated update content to the web server through a query using the update information of the feed information
Including,
The update information is information including an ID for identifying the content and a time value at which the feed information is generated. The update information is included in the feed information and is received from the web server.
The feed query module,
Generating an HTTP request message including the update information including the ID and the time value as an HTTP GET parameter and transmitting the generated HTTP request message to the web server;
The web server comprises:
After analyzing the HTTP request message and extracting the ID and the time value, the feed information is generated only for the updated content updated after the time value in the content corresponding to the ID to generate an HTTP response message. Transmitting the generated feed information to the feed reader system through
ATOM based feed reader system. The method of claim 1,
The feed reader system,
Consisting of servers of proxy type
ATOM based feed reader system comprising a. delete delete The method of claim 1,
The web server comprises:
Allocating new update information to the generated feed information and transmitting the allocated update information to the feed reader system through the HTTP response message;
ATOM based feed reader system. In the feed reader method of the feed reader system for collecting content in a web server that provides a syndication service,
The web server provides the syndication service by the ATOM standard using an HTTP-based protocol,
The feed reader system includes a feed reader module, a feed query module,
The feed reader method,
A feed reader step of receiving and storing feed information related to the content from the web server corresponding to a web site address registered by a service user in the feed reader module; And
In the feed query module, a feed query step of requesting the updated update content to the web server through a query using the update information of the feed information
Including,
The update information is information including an ID for identifying the content and a time value at which the feed information is generated. The update information is included in the feed information and is received from the web server.
The feed query step,
Generating an HTTP request message including the update information including the ID and the time value as an HTTP GET parameter and transmitting the generated HTTP request message to the web server;
The web server comprises:
After analyzing the HTTP request message and extracting the ID and the time value, the feed information is generated only for the updated content updated after the time value in the content corresponding to the ID to generate an HTTP response message. Transmitting the generated feed information to the feed reader system through
ATOM based feed reader method characterized in that. delete delete The method of claim 6,
The web server allocates new update information to the generated feed information and transmits the allocated update information to the feed reader system through the HTTP response message.
ATOM based feed reader method characterized in that.

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