KR100364077B1 - Method for network information management using real information manager and resource registry under the web - Google Patents

Abstract

The present invention relates to a method of managing network information using a real-time information generator and a resource registry in a web environment where a client user on a web browser can easily check and manipulate management information of a distributed network in real time. An object of the present invention is to use a resource registry that applies the CORBA call-back concept, to enable access on the web according to the characteristics of the resource and the information specified by the user's needs, Real-info Manager is used only for information with characteristics, and the data sent from the database server through CORBA is buffered to generate the applet input format to be provided to the user, thereby reducing the load on the entire network and effectively using the network. It is to provide an efficient management method of network information that guarantees the quality of network and web service. The characteristics of the present invention for achieving the above object is based on the 3-tier configuration based on CORBA to ensure the transparency of the database management and the use of resources required by the user in the use of the web in a distributed heterogeneous environment The CORBA mechanism implements a resource registry and real-time information generator to ensure network service quality, automate real-time information provision, and accept user-selective services.

Description

Method for network information management using real information manager and resource registry under the web}

The present invention relates to a method of processing distributed network information, and in particular, management of network information using a real-time information generator and a resource registry in a web environment in which a client user on a web browser can easily check and manipulate management information of a distributed network in real time. It is about a method.

As internet technology becomes more popular, real-time manipulation of web-based multimedia information becomes an essential requirement in business and software technology. In particular, as the distributed computing environment of the client / server architecture is recognized as a standard platform for software development and operation, an effective method for freely sharing and integrating distributed resources with heterogeneous platforms and operating systems on a network is required.

However, the combination of CORBA (Common Object Request Broker Achitecture) technology as middleware, currently considered as the best solution for integrated management of heterogeneous network resource environments, and JAVA technology for simple and independent client configuration is extremely static. It focuses on implementing synchronous event services.

Therefore, there is currently no proper support for users to make accurate decisions by efficiently managing shared and distributed resources. In addition, by using only the synchronous response of the server according to the typical client request, it is impossible to check the status in real time and greatly incurs the burden of the network communication load according to the procedure of providing the request and binding of the individual client and implementing the server of the requested data. Doing. In addition, the technical approach to the formal procedures and forms for providing real-time information of the network on the web has been overlooked.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and its purpose is to use a resource registry applying CORBA's call-back concept. Depending on the type of application, the applet can be provided to the user by buffering the data sent from the database server through CORBA, using the Real-info Manager for real-time information. It is to provide an efficient management method of network information that reduces the load of the entire network by creating a format and guarantees the quality of service of the network and the web by efficiently using the network.

1 is a schematic diagram illustrating a system according to the present invention.

2 is a block diagram of a system according to the present invention.

3 is a block diagram showing the structure of a resource registry according to the present invention;

4 is a block diagram showing a real-time information generation process according to the present invention.

<Description of Symbols for Major Parts of Drawings>

100: web client (web browser) 101: Java virtual machine

102: Java Applet 150: Web Server

151: CORBA 152: ORB

180: database server group 200: resource registry

210: callback management unit 220: resource list

300: real time information generator 310: data storage unit

320: information generator

The characteristics of the present invention for achieving the above object is based on the 3-tier configuration based on CORBA to ensure the transparency of the database management and the use of resources required by the user in the use of the web in a distributed heterogeneous environment The CORBA mechanism implements a resource registry and real-time information generator to ensure network service quality, automate real-time information provision, and accept user-selective services.

The 3-tier is an extension of the conventional client-server concept. The centralized server is divided into "functions" and "data", and the client-server is "client-server (including middleware)-database server group (expression- Function-data) ".

The CORBA was proposed by the Object Management Group (OMG) in the fall of 1990 for distributed object computing. It provides interoperability in different distributed environments between different models and provides complete interoperability between multiple object systems. It provides a transparent mechanism of requesting and responding to it.

Using CORBA not only makes it easier to develop applications for distributed computing, it also communicates between distributed objects regardless of hardware, operating system, or programming language. No matter what language CORBA is in, clients and servers can communicate with each other. That is, even if the client is a Java applet and the server is written in C ++, the client can call the methods of the objects on the server.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram showing a system according to the present invention, Figure 2 is a diagram showing the configuration of the system according to the present invention.

As shown in Fig. 1 and Fig. 2, when a user who is a tier 1 uses a web browser adopting a Java virtual machine 101 and attempts to access a required resource as a web client 100 (103), an associated applet ( 102 is downloaded and operated on the Java virtual machine 101 to establish the primary stage of resource utilization.

The second-tier functional server family 150 uses CORBA 151 elements to provide a foundation for the ORB 152 to access the third-tier database server family 180. According to a user's request message, the resource list 220 of the resource registry 200 checks the availability of the resource and attempts to access the third layer.

The information of the database server group 180 of three layers is processed by the real time information generator 300 according to user request information stored in the resource registry 200 and transmitted to the web client 100 through a callback mechanism (104). .

The object request broker (ORB) refers to an object request broker and refers to a kind of middleware that handles communication between application programs in an object-oriented manner. ORB is an element of the CORBA programming model that acts as middleware between the client and server.

3 is a block diagram showing the structure of a resource registry according to the present invention.

The second tier holds a list of services 260 and resources 220 to provide by operating a resource registry. All services 250 are recorded in each list field, and the selection of user request 230 and non-request 240 is recorded as a tag according to the characteristics of the service to be used in real time, and this service is a callback service from the user. (210) By limiting the provision of random information by having a tag of whether it is set, it focuses on reducing the burden on the network and providing user-centered service.

4 is a block diagram illustrating a process of generating real-time information according to the present invention.

As a mechanism necessary for the operation of the resource registry, the real-time information generator 300 is placed in two layers. The real time information generator 300 includes a data storage 310 and an information generator 320 that buffer information updated in real time. The information generator 320 processes and generates the transmission data in an information providing input format that can be applied to the applet 102 to be operated in the user web client 100, which is the first layer, and the callback from the database server group 180. The data storage unit 310 buffers the information 400 which is transmitted in real time using a mechanism.

The callback is a distributed object usage pattern that enables a server to transfer information to a client without an external call of the client by using an operation call from the server to the client object.

CORBA, which supports the foundation of server families, provides data location transparency to the capabilities of the resource registry and supports data access in heterogeneous operating systems and heterogeneous environments that are becoming commonplace.

The database server group 180, which is the third tier, uses a callback mechanism, which is a CORBA element of the second tier, to provide service information selectively determined by the user to be provided in real time by interoperating with the resource registry 200 defined in the second tier. The data is buffered in the data storage unit 310 in the real time information generator 300 of the two layers in accordance with the event of updating the data.

In a web environment composed of heterogeneous platforms and non-interoperable operating systems, data transparency is ensured by a two-layer CORBA-ORB environment in terms of user usage and administrator network management.

The real time information generator 300 should interwork 420 with the resource registry 200. That is, according to the recorded callback service 210 tag to be provided to the resource registry 200 in real time, the data is buffered in the data storage unit 310 of the real-time information generator 300 by an update event in the database server group 180. After that, the information generator 320 processes and provides 410 an applet input format of one layer.

The database server family applies a callback mechanism to events of data update to provide two layers of information.

As described above, according to the present invention, by providing only the data that the user wants to receive in real time to the user, the inefficiency of random provision of cookies or information can be prevented. Therefore, network traffic can be reduced, unwanted information can be blocked on the user side, and real-time provision of desired information is guaranteed. On the administrator side, network efficiency can increase and the stability of the network itself can be expected. In addition, it is expected that the N-Tier environment will become common in the future, and in this situation, the application of the principles of the present invention is expected to increase the efficiency of conversion and operation of existing 3-Tier architecture systems.

Claims (5)

A first step in which a user of the first tier attempts to access a web server of a required resource using a web browser adopting a Java virtual machine, downloads an applet, and operates on a Java virtual machine to establish a primary step of resource utilization; A second step of connecting to an ORB through a CORBA Internet environment in a second-tier functional server group and checking accessibility of resources in a resource list of a resource registry according to a user's request message and attempting to access the database server group; And In order to provide a service of a resource that a user wants to be provided in real time by interoperating with the resource registry defined in the second step, the second layer real-time information of the data in accordance with the event that the data is updated in the third layer database server group And a third step of processing by the generator to transmit to the Java applet of the web client of the first layer. The method of claim 1, wherein the resource registry maintains a list of services and resources to be provided and has a user request, a non-requirement selection tag, and a callback service setting tag according to characteristics of a service to be used in real time. Network information management using real-time information generator and resource registry in a web environment. The method of claim 1, wherein the real-time information generator is a data storage for buffering the information to be updated in real time, the information processing the transmission data in the information providing input format that can be applied to the applet to be run in the web client the buffered information Network information management method using a real-time information generator and resource registry in a web environment characterized in that the generator. The method of claim 1, wherein the real-time information generator and the resource registry interoperate with each other. The method of claim 1, wherein the transmission to the web client in the third step uses a callback mechanism, which is a CORBA element of two layers.