KR20010064246A - Collaborative group editor system using JAVA specific property on internet and method thereof - Google Patents

Abstract

PURPOSE: An Internet working group editor and a method for operating thereof are provided to perform a work even at a heterogeneity environment which a JAVA virtual machine installed without installing an exclusive program by making an environment prepared as a servlet form and naturally replicated through a download. CONSTITUTION: A work controller(100) certifies a user who wishes to join a work and register user information and transmits work information of a session to each user, and charges a management of registration, opening and deletion of the session, and controls the right to speak capable of generating an event. An event controller(110) successively stores event information generated by a user having the right to speak by the work controller with user information, and transmits work state information to users who is participating to the work and charges a transmission between the work controller and the user using a multi-cast package. An editor(120) which is a control utility is downloaded in user's computer if distributed users are certified by the work controller, and is provided as a portion of a work frame work.

Description

{Collaborative group editor system using JAVA specific property on internet and method}

The present invention relates to an Internet collaboration group editing system using Java characteristics and a method of operating the same, and in particular, by creating a replicated environment that is created in the form of a servlet and downloaded through download, a dedicated program can be created by each user. The present invention relates to an internet collaboration group editing system and a method of operating the same, which can be collaborated even in a heterogeneous environment where a JAVA virtual machine is installed.

Interest in Collaborative Supported Cooperative Work (CSCW) that improves group productivity by recently combining PCs into networks to make more efficient use, and sharing knowledge and know-how of individuals with groups to execute communications quickly and reliably. Is rising. The background of the widespread use of PCs is that CSCW attracts attention because all employees are assigned PCs, the office environment is maintained, the network has been accelerated, and the Internet can be accessed worldwide. The goal of CSCW is to increase efficiency by enabling collaboration by allowing users to be distributed locally and sharing applications to multiple users in real time.

To do this, two or more users must be able to view one or more applications on the screen with the same graphical user interface (GUI), and only one user at a time can enter the application. Since the application is replicated and multicasting the event input to one application to the duplicated application of each user, the event sharing is performed by the shared application. By multicasting the graphical result GUI to each user's system, there is a GUI sharing (GUI Sharing).

In addition, the growth of the Internet and the emergence of JAVA enabled collaboration through event sharing in cloned applet environments.

This collaboration group editing system is divided into synchronous and asynchronous.

Synchronous editors require additional communication channels (video phones, chats, etc.) to recognize other users. In data conferencing, two or more geographically separated users share the same editing space for editing, so visual problems can be displayed in color or distinguished by Name labels, using map or telepointing techniques. Use a separate structured communication scheme. It can be used for collaborative design, publishing, and engineering applications.

Meanwhile, the conventional synchronous editor is used only in a general client / server environment, and if it is implemented in a web environment on the Internet, it has not been found until now, and according to the rapid development of the Internet, a synchronous editor implemented in a web environment on the Internet is known. Requests are soaring.

The present invention has been made to solve the problems of the prior art as described above, and is created in the form of a servlet to create a naturally replicated (Replicated) environment by downloading, so that each user does not have to install a dedicated program virtual Java The purpose of the present invention is to provide an internet collaboration group editing system and a method of operating the same, which can collaborate in a heterogeneous environment in which a JAVA virtual machine is installed.

1 is a block diagram of an Internet collaboration group editing system according to an embodiment of the present invention,

2 is a flowchart illustrating a method in which an Internet collaboration group knitting machine is processed to collaborate on the Internet according to an embodiment of the present invention.

3 is a diagram illustrating a client / server architecture communication environment to which the present invention is applied.

According to the present invention for achieving the object as described above, by authenticating the user to participate in the collaboration to register the user information, transfer the collaboration information of the session to each user, and manage the registration, establishment, and deletion of the session And a collaborative controller for controlling the right to generate an event, and event information generated by a user given a right to speak by the collaborative controller, together with user information, in order to participate in the collaboration. Sends the collaboration status information to the user, the event controller responsible for the transmission between the collaboration controller and the user using a multicast package, and the distributed user is downloaded to the user's computer when authenticated by the collaboration controller, Controls provided as part of the collaboration framework Internet collaboration, group editor comprising including utilities editor is provided.

Preferably, the Internet collaboration group editor is implemented using a servlet.

More preferably, the editor is implemented using Java's lightweight component framework.

More preferably, the collaboration controller comprises a user authenticator that authenticates the user who wishes to participate in the collaboration, registers user information and downloads the editor to the computer of the authenticated user, Session controller in charge of registration, establishment and deletion management, a listener to receive the collaboration event generated by the user to proceed with the collaboration, a voice controller to control the right of the event occurrence among the users who participated in the collaboration, the collaboration It includes a commenter for providing an annotation for editing necessary for, and a network controller for controlling the Internet network.

In addition, according to the present invention, a user authentication step of authenticating a user who wants to participate in a collaboration and downloading an editor to an authenticated user; A session connection step of verifying the user information and connecting a session for group collaboration; And a collaboration step of performing group collaboration after the session is connected.

Preferably, the collaborative execution step includes calling a web browser to synchronize, requesting a voice for an event input, and inputting, modifying, or deleting a collaborative content by the user who obtained the voice. When is generated, characterized in that it comprises the step of transmitting the event to the other users participating in the collaboration, and displaying the screen after the event occurs to all users participating in the collaboration.

In the following, with reference to the accompanying drawings, a preferred embodiment according to the present invention will be described in detail.

1 is a block diagram of an Internet collaboration group editing system according to an embodiment of the present invention, wherein the Internet collaboration group editing system is roughly divided into three parts: a collaboration controller 100, an event controller 110, and Editor 120 is included.

In addition, the collaboration controller 100 is a user authenticator 101, a session controller 102, a listener (Listener, 103), a voice controller 104, a commenter 105, a remote controller 106, A history queue 107 and a network controller 108 are described, which will be described by function.

User information is registered through the user authenticator 101 through an authentication process, and at this time, the Java collaboration editor 120 is replicated.

The session controller 102 shows the collaborative information of the established session, accepts a new session establishment or join request, and transmits the existing progress information in the history queue 107 so that the distributed users can access the window. While viewing the control object on the collaboration through the listener 103, such as creating, deleting and copying. That is, the session controller 102 is responsible for managing the registration, establishment and deletion of sessions.

In addition, the talk right controller 104 is required to manage the talk right, the commenter 105 provides an editing function including an annotation function, and the network controller is responsible for the transmission and reception function. On the other hand, the remote controller 106 is responsible for the overall control of the co-work controller 100.

The event controller 110 includes an event receiver 111, an event transmitter 112, and an event encryptor / decryptor 113.

The event controller 110 analyzes the event input by the event transmitter 112, checks the right to speak through the control of the control right, ensures the accuracy of the input and sequentially stores the event information in the defined data structure, and synchronized It is responsible for transmitting the collaboration status information through the event receiver 111 to the user who later participated in the collaboration by ensuring the sex. That is, the multicast package provided by Java is used to manage the transmission between the collaboration controller 100 and the user with user information and event information.

In addition, the message encryption method using the event encryption / decryptor 113 uses Object streams (ObjectOutputStream and ObjectInputStream). Originally, the collaboration controller 100 maintains a connection list containing user information of connected clients and includes the history queue 107 containing display content. Therefore, when the user is first connected, a copy stored in the history queue 107 is sent, and the event of the editor is transmitted through the event controller 200 to all the history queues 107 of the participating users.

Therefore, when manipulating the editor 130 with the annotator 105 and the remote controller 106, which are collaboration control tools, the valid modifications are sent to the event controller 120 and the connected users The results are multicast through the network controller 108.

Meanwhile, the distributed user opens a socket to the collaboration controller 100 and interprets all user calls to manipulate display contents in a message sent to the collaboration controller 100. Thus, an independent thread receives a message from the collaboration control 100 updating the history queue 107, and a change is notified of the registered update listener 103. To add content to the display, the user delivers an appropriate message to the collaboration controller 100, outputs an output stream, and returns. In addition, it receives a message from the collaboration controller 100, and receives a message indicating that the content is added to the central list in the interpretation and execution loop. The content is added to the history queue 107 of the display by the identifier assigned to the collaboration controller 100, and a fireUpdate () function is called to notify the listener 103.

The main thread of the collaborative controller 100 opens a server socket and creates a new thread that independently handles the connection for all the connections that arrive while waiting for the user's connection. Each thread receives a message from a remote user, stores it in the history queue 107, and multicasts a modification message suitable for multicast to all connected users.

In addition, if there is a request to change the display content, a change is applied to the history queue 107, and if successful, a multicast identifier of the new content and a message indicating a change to be performed to all users. At the same time, two users attempting to change an object execute the first message arriving by the collaboration controller 100 and multicast, but the second is ignored.

Reuse threads or minimize critical sections of code, at the same time to make the collaboration controller 100 to which many users can be connected to the editor. The problem is that since the applet attempts to make a new socket connection to the collaboration controller 100, this may not succeed while some firewalls are running, so all users accessing the collaboration controller 100 with the servlet are independent. Processed by internal thread to improve accessibility and safety.

The editor 120 is divided into a text area 121, an image area 122, and a transparent area 123.

That is, the editor 120 is a control utility which is usually provided as part of a collaborative framework in which distributed users share a control space. The editor 120 edits in the window shown by using a predefined control tool function. Java's lightweight component framework allows tools to be transparently overlaid on each other, providing a GUI event and display delegation event model so that the control tools change the display content, thereby allowing the editor 120 to ).

Given a change, all listeners 103 are notified of the change and listeners, such as display listeners, can automatically update themselves by reflecting those changes and update the ObservableList distributed with changes delivered over the Internet for networking. Replace. Temporary queues are duplicated exactly as in the center so that no part of the editor 120 needs to be changed with the same API as the original Temporary Queue.

The history queue 107 is an ordered list (Vector) of identifier pairs (Hash Table) in a combination of a traditional hash table and a vector class. When an object is added to the history queue 107, it is automatically assigned an associated identifier, and a list can be manipulated by content addressing using the identifier. This is not the traditional way to use indexes, but you can delete or add any content.

When the history queue 107 is networked, content identifiers are distributed to all connected editors. The editor 120 can communicate closely with the contents of the list using the identifiers. This means that lightweight components can easily overlay information on top of other components. When the user selects a particular control tool, the lightweight component is overlaid on the editor 120 and collects GUI events on the editor display. The editor 120 includes a text area 121, an image area 122, and a transparent area 123 for annotation.

2 is a flowchart illustrating a method in which an Internet collaboration group knitting machine is processed to collaborate on the Internet according to an embodiment of the present invention.

First, in step S201, user authentication is performed for group collaboration editing. The user authentication here is because the collaboration group editor is implemented as a Java Applet, so only registered users can download and install the client module. Subsequently, if user authentication fails, the process is terminated. If user authentication succeeds, in step S204, the group editor is downloaded, and in step S205, information of the user who participates in or becomes a participant in the current collaboration on the group editor. Will be confirmed.

When the user information is confirmed, in step S206, a session is connected with the counterpart for group collaboration. If the session is connected, in step S207, group collaboration can be performed.

On the other hand, group collaboration can be performed in two modes. There are two ways to collaborate on the web by invoking a web browser and a mode in which only the editor can collaborate.

That is, in step S208, it is determined whether or not to use the web, and in the case of not using the web, in step S209, the collaborative work is performed only for the editor, and then the operation is finished, and in step S210, the web is used. The browser is called up, and in step S211, it is determined whether the web browser is synchronized.

If the result of the determination in step S211 is not synchronized, in step S212, after performing the synchronization operation, in step S213, the event is transmitted to the other party to share the event and collaborate and input the event is there a control right? Determine whether or not.

As a result of the determination in step S213, if there is a control right, the operation is performed through steps S214 to S216, and if there is no control right, in step S217, only the result performed without writing permission can be read.

In other words, a user who has gained control can insert data into a web browser or editor, which can be sent to the partner's collaboration engine to process the event and then synchronize the view. You can do group editing on the Internet at the same time as you do this.

FIG. 3 is a diagram illustrating a client / server architecture communication environment to which the present invention is applied.

The client A1, which is a service requester, sends an event A3 to the server A6, which is a service provider, to request a desired work, and the client A1 obtains only the work result A4 processed by the server A6. . Therefore, the client A1 stores the result information received from the server A6 into a local temporary queue (A2), and divides the result information into a part for outputting to a user and a communication part.

The server A6 stores information transmitted from each client in a server history queue A5 and uses it as a means for providing later synchronization to participants. It provides synchronization to a plurality of clients, the client / server provides a telepointer (A5) service, the client is a unit for requesting the service, has a role of applying and generating the service via the network.

Therefore, the server A6 should always be waiting for a request for service, and the client A1 should make a connection request for requesting a service from the server A6. The client A1 and the server A6 may be located on different computers via a network or may be simultaneously located on one computer. It is irrelevant to the operation of the entire system even if the size is reduced or increased, such as adding the number of clients A1.

The present invention as described above is recorded on a computer-readable recording medium, and can be processed by a computer.

As described in detail above, the present invention provides an Internet collaboration group editing system and a method of operating the same, thereby solving synchronization problems due to instability of event transmission that may occur when sharing an event, and view consistency. It is effective in ensuring system synchronization when working with documents in a virtual space by solving problems such as session information and user information processing required during collaboration.

The technical spirit of the present invention has been described above with reference to the accompanying drawings, but this is by way of example only and not by way of limitation to the present invention. In addition, it is obvious that any person skilled in the art may make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (7)

Registering user information by authenticating users who want to participate in the collaboration, passing the collaboration information of the session to each user, managing registration, opening, and deleting sessions, and controlling the voice that can generate events. With work controller, Storing event information generated by a user who is given a voice by the collaboration controller in order together with user information, transmitting collaboration status information to a user who participates in the collaboration, and using the multicast package. An event controller responsible for the transfer between the job controller and the user, and Internet collaboration group editor comprising a editor that is a control utility that is downloaded to a user's computer when a distributed user is authenticated by the collaboration controller and is provided as part of a collaboration framework. The internet collaboration group editor of claim 1, wherein the internet collaboration group editor is implemented using a servlet. The Internet collaboration group editor according to claim 1 or 2, wherein the editor is implemented using a lightweight component framework of Java. The method of claim 3, wherein the collaboration controller, A user authenticator for authenticating a user who wants to participate in the collaboration, registering user information, and downloading the editor to a computer of an authenticated user; A session controller responsible for managing the registration, creation, and deletion of currently collaborating sessions, Listeners that collaborate on collaboration events received by users, A voice controller that controls the voice of the event occurrence among users participating in the collaboration, A commenter for providing comments on the editing required for the collaboration, and An internet collaboration group editor, comprising a network controller for controlling an internet network. A user authentication step of authenticating a user who intends to participate in the collaboration and downloading an editor to the authenticated user; A session connection step of verifying the user information and connecting a session for group collaboration; And And a collaboration step of performing group collaboration after the session is connected. The method of claim 5, wherein performing the collaboration operation, Calling the web browser to synchronize, Requesting floor for the event input; Transmitting the event to another user who participates in the collaboration when an event occurs by the user who has obtained the right to input, modify, or delete a collaboration content; and And a step of displaying a screen after an event is generated to all users who participated in the collaboration. On your computer, A user authentication step of authenticating a user who intends to participate in the collaboration and downloading an editor to the authenticated user; A session connection step of verifying the user information and connecting a session for group collaboration; And A computer-readable recording medium that records a program for executing the method of operation of the Internet Collaboration Group Editor, including a collaboration step of performing a group collaboration after a session is connected.