KR101178280B1 - File syscronization method and apparatus - Google Patents

Abstract

A transmitter for transmitting data to a file server connected to the client terminal; An event confirmation unit confirming a file storage event occurring in the client terminal; And when an update is present in the file in which the file storage event is confirmed, the updated file or data about the update to the file server through the transmitting unit so that the file update is reflected in the file server. A file synchronization device including a synchronization unit for transmitting and a file synchronization method corresponding thereto are provided.

Description

File sync method and device {FILE SYSCRONIZATION METHOD AND APPARATUS}

The present invention relates to a file server and a client terminal connected to the server, and more particularly, to a file synchronization method and apparatus for implementing a synchronous file server and a synchronous client terminal connected to the server.

In general, most documents related to work are produced as electronic documents using personal computers, and it is necessary to save documents to a central server for collaboration and sharing after the writing process or completion of the writing.

In such a system, documents are generally created and stored in a terminal and then moved or registered to a central server according to the intention of the author. Therefore, the movement and creation of the work file to the server is made by the personal judgment of the original author, and in this process, the exclusive status of information occurs according to the intention of the author. These electronic documents may be the result of long-term research in the enterprise, or they may need to be shared quickly.

In this case, in order to prepare systematically, a method of restricting all documents to be shared in a central server has been developed and utilized from the time of creation for mutual information sharing and cooperation with collaborators when the documents are generated in the terminal. In order to store a file in the terminal without storing the file at the terminal, a method of providing a network drive to the terminal and limiting the document file from being stored in a direct storage device connected to the terminal, including an auxiliary storage device, has been utilized.

However, this method has a disadvantage in that stability and support for electronic documents with a large file size or contents referring to external files, such as CAD files, are weak. Especially, in case of large file like CAD, when reading and modifying all the document files in order to save the file once, when saving and opening it to the network drive, there is a waiting time to wait for the physical movement of the file. In addition, when the downloaded file refers to another file or is linked to another file, such as a project file or a reference file, the entire data is not normally displayed when the file is opened.

An object of the present invention is to provide a file synchronization method and apparatus capable of synchronizing a file system between a file server and a client terminal.

In addition, the present invention is to provide a file synchronization method and apparatus that can reduce the system load and more efficiently manage all files created / edited / changed in the client terminal in the central file server.

In addition, the present invention is to provide a system of a file server-client terminal structure that is more convenient for the user of the client terminal.

Other objects of the present invention will be readily understood through the following description.

According to one aspect of the present invention, a file synchronization device is provided.

File synchronization apparatus according to an embodiment of the present invention, the transmission unit for transmitting data to the file server connected to the client terminal; An event confirmation unit confirming a file storage event occurring in the client terminal; And when an update is present in the file in which the file storage event is confirmed, the updated file or data about the update to the file server through the transmitting unit so that the file update is reflected in the file server. It includes a synchronization unit for transmitting.

The event checking unit may further check an object change event related to at least one of a folder change, a folder list change, and a file list change in a folder generated by the client terminal.

The synchronization unit may transmit update information related to the object change to the file server through the transmitter so that the object change content corresponding to the object change event is reflected in the file server.

Here, the file synchronization apparatus further includes an authentication unit for authenticating the client terminal or the user of the client terminal,

The synchronization unit may transmit the update information related to the object change to the file server only when the object change event is generated by a terminal or a user having object change authority based on the authentication information obtained from the authentication unit. have.

The file synchronization apparatus may include a receiver configured to receive data from a file server; A file acquisition unit for acquiring a server storage file included in a storage space of the file server accessible according to the authority granted to the client terminal or the user of the client terminal; A comparison unit comparing the server storage file with a corresponding file stored in the client terminal; And a file update unit configured to update the terminal storage file to the server storage file when there is a change between the server storage file and the terminal storage file according to the comparison result.

The comparison unit may compare whether there is a change between the server storage file and the terminal storage file based on at least one of a file generation time, a file size, and a file content.

The file obtaining unit may obtain the server storage file when there is a connection request from the client terminal to the file server or when a request for reading a terminal storage file corresponding to the server storage file is received from the client terminal. Can be.

Here, when there is a connection request from the client terminal to the file server or when there is a request to view a folder including the server storage file from the client terminal,

The file obtaining unit obtains a server folder list included in the storage space of the file server, the comparing unit compares the server folder list with a corresponding folder list stored in the client terminal, and the file updating unit, the server If there is a change between the folder list and the terminal folder list, the terminal folder list may be updated with the server folder list.

Here, the synchronization unit may transmit the updated file or data about the update to the file server only with respect to file update items within a predetermined work area of the client terminal or file update items of a file having a predetermined extension. Can be sent.

The file synchronization apparatus may include an authentication unit configured to authenticate the user of the client terminal according to a connection request to the file server; And a work environment setting unit for setting a work environment of the authenticated user.

The work environment setting unit is a hierarchical structure for the files and folders included in the storage space of the file server accessible according to the authority granted to the user of the client terminal, in the storage space of the file server. Correspondingly, the work environment may be set to be displayed on the desktop of the client terminal.

According to another aspect of the present invention, a file synchronization method in a file synchronization device is provided.

A file synchronization method according to an embodiment of the present invention includes: checking a file storage event occurring in a client terminal; Checking whether there is an update in a file in which the file storage event is confirmed; And transmitting the updated file or data about the update to the file server so that the file update may be reflected to a file server connected to the client terminal, if the update exists.

The method for synchronizing files may include: checking an object change event related to at least one of a folder change, a folder list change, and a file list change in a folder generated in the client terminal; And transmitting update information related to the object change to the file server so that the object change content corresponding to the object change event is reflected on the file server.

The method for synchronizing files may include: acquiring a server storage file included in a storage space of the file server accessible according to a right granted to the client terminal or a user of the client terminal; Comparing the server storage file with a corresponding file stored in the client terminal; And if there is a change between the server storage file and the terminal storage file according to the comparison result, updating the terminal storage file with the server storage file.

The acquiring of the server storage file may include: when there is a connection request from the client terminal to the file server or when there is a request for reading a terminal storage file corresponding to the server storage file from the client terminal, It may be to obtain a storage file.

The method for synchronizing files may include: acquiring a list of server folders included in a storage space of the file server that is accessible according to an authority granted to the client terminal or a user of the client terminal; Comparing the server folder list with a corresponding folder list stored in the client terminal; And when there is a change between the server folder list and the terminal folder list, updating the terminal folder list to the server folder list.

The file synchronization method may include: authenticating a user of the client terminal according to a connection request to the file server; And

The files and folders included in the storage space of the file server accessible according to the authority granted to the user of the client terminal correspond to the hierarchical structure for the files and the folders in the storage space of the file server. The method may further include setting a work environment to be displayed on the desktop of the user.

According to another aspect of the present invention, the above-described file synchronization method may be provided as a recording medium in which a program for executing the method is recorded and readable by a computer.

According to an embodiment of the present invention, a file synchronization method and apparatus capable of synchronizing a file system between a file server and a client terminal can be provided.

In addition, a file synchronization method and apparatus capable of reducing the system load and enabling more efficient management in managing all files created / edited / modified in a client terminal in a central file server can be provided.

In addition, it is possible to provide a system of a file server-client terminal structure with more convenience for a user of the client terminal.

1 is a diagram illustrating a system structure in which a file server and a plurality of client terminals are connected according to an embodiment of the present invention.
2 is a block diagram of a file synchronization device according to an embodiment of the present invention.
3 is an example of a detailed configuration of a file system filter driver unit of the file synchronization device of the present invention.
Figure 4 is an example of a block diagram of a file server according to the present invention.
5 is a diagram illustrating file and folder synchronization between a file server and a client terminal according to an embodiment of the present invention.
6 is a flowchart illustrating a process of synchronizing files from a client terminal to a file server according to an exemplary embodiment of the present invention.
7 is a flowchart illustrating a process of file synchronization from a file server to a client terminal according to an embodiment of the present invention.

The present invention may be variously modified and have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail with reference to the accompanying drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another.

Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

Hereinafter, with reference to the accompanying drawings will be described embodiments of the present invention;

1 is a diagram illustrating a system structure in which a file server and a plurality of client terminals are connected according to an embodiment of the present invention.

As illustrated in FIG. 1, in the client-server system, the file server 100 may be connected to a plurality of client terminals through a wired or wireless network 130. In this case, each of the plurality of client terminals may be viewed as having a one-to-one relationship with the file server 100, and thus, reference numerals of arbitrary client terminals are collectively referred to as 120 for convenience of description.

In the present invention, the file server 100 and the client terminal 120 may further include a general component of a conventional computer, and each component according to an embodiment of the present invention utilizes the general component of the computer or hardware It should be clarified that software, programs, and recording media may be provided separately.

In addition, if the client terminal 120 is an electronic device that is wired and / or wirelessly connected to the file server 100 to transmit and receive data with the file server 100, the client terminal 120 may correspond to the name and a separate function. It is obvious.

Hereinafter, a file synchronization device according to an embodiment of the present invention will be described in detail with reference to FIGS. 2 to 4.

2 is a block diagram of a file synchronization device according to an embodiment of the present invention, Figure 3 is an example of a detailed configuration of the file system filter driver unit of the file synchronization device of the present invention. 4 is an example of a block diagram of a file server according to the present invention.

Referring to FIG. 2, the file synchronization apparatus 200 according to an embodiment of the present invention may include a transceiver 210, a storage 220, a synchronizer 230, an authenticator 240, and a file system filter driver. The unit 250 and a work environment setting unit 260 may be included. 3, the file system filter driver 250 may include an event checking unit 252, a file obtaining unit 254, a comparing unit 256, and a file updating unit 258. .

However, not all of the components shown in FIGS. 2 and 3 are essential, and according to design, a file synchronization device having fewer or more components may be implemented. This will be readily understood through the description throughout this specification.

In addition, it is intended to clarify that the division for each component in this specification is only divided by the main function of each component. That is, two or more constituent parts may be combined into one constituent part, or one constituent part may be divided into two or more functions according to functions that are more subdivided. In addition, each of the above-described components may additionally perform some or all of the functions of other components in addition to the main functions of their own, and some of the main functions of each of the components are performed by other components. Of course, it may be carried out exclusively. Therefore, the presence or absence of each component described through this specification should be functionally interpreted.

In this case, the file synchronization device of the present invention may be a part of the client terminal or may be mounted in a module form or software form independent or embedded in the client terminal, in a recording medium readable by the client terminal. Of course, it may be recorded in the form of program code.

Hereinafter, with reference to FIG. 4 with reference to FIG. 2 and FIG. 3, the function which each component has is demonstrated one by one. 4 is a block diagram illustrating components that may be included in the file server 100 in implementing the file synchronization apparatus and method of the present invention.

The transceiver 210 may transmit / receive data with the file server 100. In addition, the storage unit 220 may store data.

The synchronization unit 230 performs a function of synchronizing files, folders, folder lists, and the like between the client terminal 120 and the file server 100.

Changes (updates) of files, folders, folder lists, etc. in the client terminal 120 may be synchronized with the file server 100 in the following manner.

The above "file-to-file synchronization", "folder-to-folder synchronization", and "folder-to-folder list synchronization" may be performed together, but only "file-to-file synchronization" may be performed according to the device design. With this in mind, the following describes the "file to file synchronization" method first.

An object of the present invention is to be able to manage the file created / edited in the client terminal in a central file server. Therefore, even if only the synchronization between the files between the client terminal and the file server (i.e., no synchronization between folders and / or synchronization between folders lists) is performed, the object (central management of files) can be achieved.

["File-to-File Synchronization" between Client Terminal and File Server]

Hereinafter, a "file-to-file synchronization" method between the client terminal and the file server will be described. First, a file-to-file synchronization method in a client terminal-> file server direction, and second, a file in a file server-> client terminal direction. This will be described by dividing the synchronization between the two.

In this case, for the convenience of understanding the "file-to-file synchronization" method, the file-to-file synchronization in the direction of the client terminal-> file server in Figure 6, the file server-> file synchronization in the direction of the client terminal is the flowchart of Figure 7 It will be described with reference to.

In this case, the file-to-file synchronization in the direction of the client terminal to the file server and the file-to-file synchronization in the direction of the file server to the client terminal may be designed to implement only one of them according to the device design or as necessary. It will be appreciated that may be designed to be implemented at the same time.

File-to-File Synchronization from Client Terminal to File Server

When the user of the client terminal 120 selects (try) to save a file after editing / creating a specific file, a file storage event is generated according to the storage command (step S61 of FIG. 6).

Such a file storage event may be confirmed by the file system filter driver 250 (specifically, the event checking unit 252) of the file synchronization device 200 of the present invention (step S62 of FIG. 6). For example, the file system filter driver 250 may check the file storage event generated by periodically or continuously monitoring the file system of the client terminal 120 or by hooking the file system.

In this case, the file system filter driver 250 is not driven at the application level (application program level), but is driven in such a manner as to read IN / OUT data at the file system driver level in the middle. The advantage is that it can work in the OS and in proprietary shell-based applications (eg HWP, CAD, etc.).

When the file storage event is confirmed as described above, the synchronization unit 230 checks whether an update item exists in the file in which the file storage event occurs (step S63 of FIG. 6).

Here, the following may correspond to file update items. First, in the case of a change (update) by editing an existing file, a file name change, various file histories (e.g., last save date, date and time of editing, editor, file size, etc.), contents in the file, and the like are changed. This may be the case. In the case of creation (creation) of a new file (including the case of creation of a new file of the same content having a different file extension by editing an existing file), all information about the new file is included in the file update item. Can be. In addition, even if only the file reading is performed without editing the file, history information related to the file reading (for example, the reader information, the reading date and time information, etc.) may also be included in the file update item here. However, it is obvious that the file update items may be determined differently depending on the design or specific criteria.

When the file update items as described above exist, the synchronization unit 230 may be configured to reflect the file update in the client terminal 120 to the file server 100 to synchronize the file between the client terminal and the file server. If possible, data about the update item (or the updated file itself) may be transmitted to the file server 100 through the transceiver 210 (step S66 of FIG. 6). In this case, the synchronizer 230 may further transmit information about a physical file path (ie, a physical storage location) of the update file to the file server 100.

Here, the "physical file path of the update file" means a file path in which a server storage original file corresponding to the update file is stored (stored). In the case of Fig. 5, "a.doc" (i.e., C \ apology \ a.doc) in "Ciology Folder" in "C Drive" of the file server 100 is an example.

In the above description, however, the "update file itself" transmitted to the file server for file-to-file synchronization means a copy of the update file. That is, the actual update file is controlled by the file system filter driver 250 in the file synchronization device 200 of the present invention according to the designated file path (storage location) of the corresponding file or corresponding to the newly designated file path. Is stored in my specific storage space (steps S64 and S65 in Fig. 6).

The data (or update file) regarding the update items transmitted as described above may be received through the server transceiver 102 of the file server 100.

Here, when the received data is the updated file itself, the server control unit 106 of the file server 100 determines that the update file is in the server storage unit 104 corresponding to the physical file path information of the update file. Save to storage space. In this case, when the file corresponding to the update file (that is, the original file in the state before the file is updated, hereinafter referred to as "server storage original file") has already been stored in the server storage unit 104, The server control unit 106 may update (ie, replace) the server storage original file with the received update file (step S67 of FIG. 6). Of course, it is apparent that an additional storage method may be used rather than an alternative storage method.

Here, when the received data is data on the update item (that is, when only data on the update item is received in comparison with before updating), the server control unit 106 is based on the update data. After the server storage source file is updated, the updated file may be stored in a storage space corresponding to the physical file path information of the file (step S67 of FIG. 6). In this case, the parallel storage method of the server storage source file and the update file may be used. Alternatively, parallel storage of update data and server storage source files may be used.

Through the above-described process, synchronization between files in the direction of the client terminal-> file server is achieved. In the case of the file synchronization device 200 of the present invention, since the update file is designed to be stored not only in the file server 100 but also in the client terminal 120 according to the client / server structure, the file downloaded from the server Even if a file refers to or is linked to another file (for example, a project file such as an Excel file, a CAD file, etc.), the advantage of preventing the error from displaying the entire data normally when the file is opened. There is this.

In addition, although the above-described file-to-file synchronization in the client terminal-> file server direction may be applied to all files in the client terminal, it may be set to be performed only on files in a predetermined work area in the client terminal. For example, only client files in a specific disk drive of a client terminal or in a specific folder (for example, "My Documents", "Ciology Folder", "Co-project Folder", etc.) It can also be implemented to achieve file-to-file synchronization. In addition, such file-to-file synchronization may be set to be performed only for files having a specific extension according to design or setting. In addition, various applications can be limited and designed.

File-to-file synchronization between client servers

If there is a connection request from the user of the client terminal 120 or the client terminal 120 to the file server 100 (step S71 of FIG. 7), the file system filter driver unit 250 of the file synchronization device 200. File acquisition unit 254 acquires a server storage file from file server 100 (step S72 of Fig. 7).

In this case, the server storage file obtained by the file obtaining unit 254 may be a file included in the storage space of the file server 100 accessible according to the authority granted to the client terminal or the user of the client terminal. have.

This will be described with reference to FIG. 5 as follows. When the "Ciology client terminal 120" accesses the file server 100, the "Ciology client terminal 120" is only accessible to the "Ciology folder" in the "C drive" of the file server 100, May be granted. In this case, the file synchronization device 200 (of which the file acquiring unit 254) mounted on the "human apple client terminal 120" stores the "C \ apple" storage space (or file path) in the file server 100. Only a server stored file named a.doc can be obtained.

Here, the case in which the server access authority is differently granted according to the client terminal has been described, but this is for each user who actually uses the client terminal according to a predetermined authentication procedure such as login (see "Hong Kil Hong" in FIG. 5). Obviously, server access may be granted differently. In this case, the authentication may be performed by the authentication unit 240 of the file synchronization device 200 of the present invention. Of course, it may be performed by a specific component (server authentication unit 105 of FIG. 4) in file server 100.

As described above, when the server storage file having the access right to the client terminal 120 or the user is obtained from the file server 100, the comparison unit 256 of the file system filter driver unit 250, the obtained By comparing the server storage file and the terminal storage file corresponding thereto (step S73 of FIG. 7). It is checked whether there is a change between both (step S74 in Fig. 7).

In this case, the following criteria may be applied as the comparison criteria by the comparison unit 256. For example, the method of actually comparing the file contents between the two, the method of comparing the file history (for example, file creation time, last storage date and time) between the two, the method of comparing the file size (data amount), etc. may be applied. Can be.

As a result of the comparison according to the above criteria, if there is a change between them (that is, the obtained server storage file is different from the terminal storage file), the file update unit 258 of the file system filter driver 250 The terminal storage file is updated to match the obtained server storage file. Here, as an update method for matching the terminal storage file with the server storage file, a method of replacing and storing the terminal storage file with the server storage file (steps S75 and S76 of FIG. 7) may be used, and the change thereof may be used. A method of matching and storing the two items may be used.

As described above, file-to-file synchronization in a file server-to-client terminal direction is useful in the following cases. For example, when a separate server storage space is allocated to the file server for each client terminal or particularly for each user of the client terminal, the likelihood that files in the server storage space are changed or updated by another client terminal or another user. Is not big. Therefore, in this case, only the file-to-file synchronization in the direction of the client terminal-> file server described above may achieve "file-to-file synchronization between the client terminal and the file server" of the present invention.

However, a separate server storage space is not allocated to each client terminal or user, but a plurality of client terminals or a plurality of users may be provided with a common server storage space or may use a common server storage space. have. In this case, the same file may be changed by another client terminal or another user even after file synchronization is performed by transferring the content of a file worked by one client terminal or one user to the file server. Therefore, in the above case, file synchronization from the file server to the client terminal may be required. In particular, when the target file (see FIG. 5) is a file collaborated by several people, such as a project file or a joint management file, the latest file that has been changed (updated) by another person after the work is downloaded again from the server. In this case, the file-to-file synchronization of the file server-> client terminal described above may be very useful.

In the above description, a case in which file-to-file synchronization in a file server-> client terminal direction is instantaneously performed when a client terminal or a user requests a connection to a file server is described as an example. However, the synchronization time point may vary. .

For example, when a user attempts to view a target file stored in a client terminal (that is, at the time of requesting to view a file), the server storage file corresponding to the target file may be obtained and also updated.

So far, the description has been focused on "file-to-file synchronization" between the client terminal and the file server. However, the file synchronization apparatus 200 of the present invention may perform the synchronization between the folders and / or the folder list in addition to the file to file synchronization. This will be described below, but a duplicate description will be omitted for a part to which the same or similar technical solution principle as in the above-described file synchronization can be applied.

[Synchronization between folder / folder list between client terminal and file server]]

"Inter-Folder Synchronization" and / or "Folder-to-Folder List Synchronization" between the client terminal and the file server may be implemented in a manner similar to the foregoing inter-file synchronization.

First, "folder / folder list synchronization" in the direction of a client terminal-> file server may be performed in the following manner.

That is, the file system filter driver 250 (more specifically, the event checker 252) of the file synchronization device 200 may change a folder or a list of folders generated in the client terminal through file system monitoring or hooking. You can see object change events such as changes, file list changes in folders, and so on.

Accordingly, the synchronization unit 230 changes the object so that the object change contents corresponding to the object change event (for example, the folder change in the case of a folder change event) are reflected in the file server, thereby enabling mutual synchronization. The update information associated with the change (that is, change history information regarding a folder change) may be transmitted to the file server through the transceiver 210.

However, the change of the folder / folder list in the direction of the client terminal-> file server as described above may be limited in some cases. For example, it may not be desirable to change the folder name, folder hierarchy, etc. centrally managed in the file server by an unauthorized person. Therefore, in such a case, the file synchronization apparatus 200 first checks whether the client terminal or the user has the authority to change the folder / folder list based on a predetermined authentication procedure, and then has the authority or Only folder / folder list changes that occur within the terminal can be restricted to be synchronized to the file server.

Next, "Folder / Folder List Synchronization" in the direction of File Server-> Client Terminal can also be performed in the following manner.

That is, the file synchronization device 200 obtains the server folder list only according to the server access authority granted when there is a connection request from the client terminal or the user to the file server, or when there is a folder viewing request. By comparing the server folder list with the corresponding folder list in the client terminal, if there is a change between the folder list, the terminal folder list may be updated (replaced) with the obtained server folder list to implement bilateral folder / folder list synchronization. have.

The folder / folder list synchronization described above (particularly, the folder / folder list synchronization in a file server-> client terminal direction) allows the working environment in the client terminal to match the hierarchical structure of folders and files in the file server. This can be a very convenient feature for the user.

For example, the folder / folder list synchronization is implemented simultaneously with the above-described file-to-file synchronization, such that the hierarchical structure of folders and files in the file server is intact. Etc.) may be implemented in the same manner. It can provide a very intuitive working environment for the user. That is, when the user of the client terminal accesses the file server through a predetermined authentication procedure, the main screen of the terminal changes from the "previous desktop" to the "new desktop" that matches the hierarchy of folders and files in the file server. When reorganized, the user is provided with a very intuitive and accessible working environment (see FIG. 5). The setting of the work environment may be implemented by the work environment setting unit 260 of the file synchronization apparatus 200.

Those skilled in the art will readily understand that the above-described synchronization method may be provided included in a recording medium (eg, hard disk, CD-ROM, etc.) that can be read through a computer by implementing a program of instructions for executing the same. Could be.

Although the above has been described with reference to embodiments of the present invention, those skilled in the art may variously modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. And can be changed easily.

100: file server 120: client terminal
130: wired and wireless network 200: file synchronization device
210: transceiver 220: storage
230: synchronization unit 240: authentication unit
250: file system filter driver
260: work environment setting unit
252: event confirmation unit 254: file acquisition unit
256: comparison unit 258: file update unit

Claims (9)

A transmitter for transmitting data to a file server connected to the client terminal;
An event confirmation unit confirming a file storage event occurring in the client terminal; And
When an update item exists in a file in which the file storage event is confirmed, the updated file or data about the update item is transmitted to the file server through the transmitter so that the file update item is reflected in the file server. Including a synchronization unit for
Wherein the synchronization unit comprises:
Characterized in that for only the file update in the predetermined work area of the client terminal or the file update of the file having a predetermined extension, the updated file or data about the update is transmitted to the file server. File sync device.
The method of claim 1,
The event checking unit may further check an object change event related to at least one of a folder change, a folder list change, and a file list change in a folder generated by the client terminal.
And the synchronization unit transmits the update information related to the object change to the file server through the transmitter so that the object change content corresponding to the object change event is reflected on the file server.
The method of claim 2,
Further comprising an authentication unit for authenticating the client terminal or the user of the client terminal,
The synchronization unit transmits the update information related to the object change to the file server only when the object change event is generated by a terminal or a user having object change authority based on the authentication information obtained from the authentication unit. File synchronization device.
The method of claim 1,
Receiving unit for receiving data from the file server;
A file acquisition unit for acquiring a server storage file included in a storage space of the file server accessible according to the authority granted to the client terminal or the user of the client terminal;
A comparison unit comparing the server storage file with a corresponding file stored in the client terminal; And
A file update unit for updating the terminal storage file to match the server storage file when there is a change between the server storage file and the terminal storage file according to the comparison result
File synchronization device further including.
The method of claim 4, wherein
And the comparison unit compares whether there is a change between the server storage file and the terminal storage file based on at least one of a file generation time, a file size, and a file content.
The method of claim 4, wherein
The file obtaining unit obtains the server storage file when there is a connection request from the client terminal to the file server or when a request for reading a terminal storage file corresponding to the server storage file is received from the client terminal. File synchronization device.
The method of claim 4, wherein
When there is a connection request from the client terminal to the file server or when there is a request to view a folder including the server storage file from the client terminal,
The file obtaining unit obtains a server folder list included in the storage space of the file server,
The comparison unit compares the server folder list with the corresponding folder list stored in the client terminal.
The file update unit, if there is a change between the server folder list and the terminal folder list, the file synchronization device, characterized in that for updating the terminal folder list to the server folder list.
delete The method of claim 1,
An authentication unit configured to authenticate a user of the client terminal according to a connection request to the file server; And
Further comprising a work environment setting unit for setting a work environment of the authenticated user,
The work environment setting unit is a hierarchical structure for the files and folders included in the storage space of the file server accessible according to the authority granted to the user of the client terminal, in the storage space of the file server. Corresponding to the file environment, characterized in that for setting the work environment to be displayed on the desktop of the client terminal.

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