WO2017032170A1

WO2017032170A1 - Method and apparatus for importing mirror image file

Info

Publication number: WO2017032170A1
Application number: PCT/CN2016/087703
Authority: WO
Inventors: 刘基; 薄海; 线超博
Original assignee: 华为技术有限公司
Priority date: 2015-08-21
Filing date: 2016-06-29
Publication date: 2017-03-02
Also published as: CN105094924B; CN105094924A

Abstract

Disclosed are a method and apparatus for importing a mirror image file. The method comprises: decompressing a compressed packet containing a plurality of mirror files to obtain a first description file and a plurality of data files, the first description file being used for storing a corresponding relationship between a mirror file name and a leaf node identity identifier (ID), and file data of each of the mirror files being stored in at least one of the data files (301); acquiring a target data file according to the first description file and the plurality of data files (302); generating a compressed packet of a target mirror file according to the target data file (303); and importing the compressed packet of the target mirror file into a target node (304). According to a file obtained by decompressing a compressed packet containing a plurality of mirror files, a mirror file to be imported is obtained, and thus the mirror file is targetedly imported into a target node, thereby avoiding importing the compressed packet containing a plurality of mirror files as a whole, which not only saves import time but also saves storage cost.

Description

Image file importing method and device

The present application claims priority to Chinese Patent Application No. 201510519278.4, entitled "Importing Method and Apparatus for Image File", filed on August 21, 2015, the entire contents of which is incorporated herein by reference. .

Technical field

The present invention relates to the field of computer technologies, and in particular, to a method and an apparatus for importing an image file.

Background technique

In the computer field, in order to facilitate user downloading and use, a series of specific files can be made into an image file according to a preset format by an image file creation tool. Usually an image file consists of multiple data files, each of which stores different data of the image file.

In order to save storage space, in a Docker scenario, multiple image files on a node are usually saved as a compressed package, and multiple image files in the compressed package may share the same data file. When you need to import a partial image file on a node to another node, you can import the compressed package containing all the image files to another node through the load operation.

In the process of implementing the present invention, the inventors have found that the prior art has at least the following problems:

Even if only a part of the image file on the node is needed, since all the image files have been saved as one compressed package, the whole compression package needs to be imported, which is not only time consuming but also increases the storage cost of the other node.

Summary of the invention

In order to solve the problem of the related art, an embodiment of the present invention provides a method and an apparatus for importing an image file. The technical solution is as follows:

In a first aspect, a method for importing an image file is provided, and the method includes:

Decompressing a compressed package that includes multiple image files to obtain a first description file and a plurality of data files, where the first description file is used to store a correspondence between an image file name and a leaf node identity ID, each The file data of the image file is stored in at least one data file;

Acquiring, according to the first description file and the plurality of data files, a target data file, where the target data file stores file data of a target image file to be imported;

Generating a compressed package of the target image file according to the target data file;

Import the compressed package of the target image file to the target node.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the acquiring the target data file according to the first description file and the multiple data files includes:

Read the file ID and parent ID of each data file from multiple data files;

Obtaining, from the first description file, a leaf node ID of the target image file;

The target data file is acquired according to the leaf node ID and the file ID and the parent ID of the plurality of data files.

In conjunction with the first possible implementation of the first aspect, in a second possible implementation of the first aspect, each of the data files includes at least a second description file, where the second description file is used to follow The default storage format stores the file ID and parent ID of the data file;

Reading the file ID and the parent ID of each data file from the plurality of data files, including:

The file ID and parent ID of each data file are read from the second description file corresponding to each data file.

With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the obtaining, by the first description file, the leaf node ID of the target image file includes:

And obtaining, according to the image file name of the target image file, the leaf node ID corresponding to the image file name of the target image file, from the correspondence between the image file name and the leaf node ID stored in the first description file.

In conjunction with the first possible implementation of the first aspect, in a fourth possible implementation manner of the first aspect, the obtaining, according to the leaf node ID and a file ID and a parent ID of the multiple data files Target data files, including:

Obtaining, from the file ID and the parent ID of the plurality of data files, a parent ID of the leaf node ID, by using the leaf node ID as a starting file ID;

Taking the parent ID of the leaf node ID as the file ID, looping through the file ID and the parent ID of all the data files until the root node ID of the target image file is obtained;

All the data files between the data file where the leaf node ID is located and the data file where the root node ID is located are used as the target data file.

With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the generating, by the target data file, the compressed package of the target image file includes:

Generating a target description file according to a correspondence between an image file name of the target image file and a leaf node ID stored in the first description file;

The target data file and the target description file are compressed according to a specific format to obtain a compressed package of the target image file.

In a second aspect, an apparatus for importing an image file is provided, the apparatus comprising:

a decompression module, configured to decompress a compressed package that includes multiple image files to obtain a first description file and multiple data files, where the first description file is used to store between the image file name and the leaf node identity ID Correspondence, the file data of each image file is stored in at least one data file;

An acquiring module, configured to acquire, according to the first description file and the plurality of data files, a target data file, where the target data file stores file data of a target image file to be imported;

a generating module, configured to generate a compressed package of the target image file according to the target data file;

The import module is configured to import the compressed package of the target image file to the target node.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the acquiring module is configured to read, from a plurality of data files, a file ID and a parent ID of each data file; Obtaining a leaf node ID of the target image file in the description file; acquiring a target data file according to the leaf node ID and a file ID and a parent ID of the plurality of data files.

In conjunction with the first possible implementation of the second aspect, in a second possible implementation of the second aspect, the data file includes at least a second description file, where the second description file is used to follow The default storage format stores the file ID and parent ID of the data file;

The obtaining module is specifically configured to read a file ID and a parent ID of each data file from a second description file corresponding to each data file.

With reference to the first possible implementation of the second aspect, in a third possible implementation manner of the second aspect, the acquiring module is specifically configured to use the first description from the image file name of the target image file. In the correspondence between the image file name and the leaf node ID, the leaf node ID corresponding to the image file name of the target image file is obtained.

With reference to the first possible implementation of the second aspect, in a fourth possible implementation manner of the second aspect, specifically, the leaf node ID is used as a starting file ID, and the multiple data files are In the file ID and the parent ID, the parent ID of the leaf node ID is obtained; and the parent ID of the leaf node ID is the file ID, and the file ID and the parent ID of all data files are looped through until the target mirror is obtained. The root node ID of the file; the data file between the data file where the leaf node ID is located and the data file where the root node ID is located is used as the target data file.

With reference to the second aspect, in a fifth possible implementation manner of the second aspect, the generating module is specifically configured to: according to the image file name and the leaf node ID of the target image file stored in the first description file Corresponding relationship between the two, generating a target description file; compressing the target data file and the target description file according to a specific format to obtain a compressed package of the target image file.

The beneficial effects brought by the technical solutions provided by the embodiments of the present invention are:

Obtain the image file to be imported according to the file obtained by decompressing the compressed package containing multiple image files, and then import the image file into the target node in a targeted manner, thereby avoiding the compression of the compressed package containing multiple image files. The overall import not only saves import time, but also saves storage costs.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

FIG. 1(A) is a structural diagram of an image file according to an embodiment of the present invention;

FIG. 1(B) is a logical architecture diagram of a method for importing an image file according to an embodiment of the present invention;

2 is a block diagram of a computer used in another embodiment of the present invention;

3 is a flowchart of a method for importing an image file according to another embodiment of the present invention;

4 is a flowchart of a method for importing an image file according to another embodiment of the present invention;

FIG. 5 is a schematic diagram of an image file import process according to another embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of an image file according to another embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an apparatus for importing an image file according to another embodiment of the present invention.

detailed description

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

In the computer world, mirroring is a type of redundancy that is essentially a copy of data on one disk on another. In order to save the storage space occupied by files on the disk, it is often used. UltraISO, winISO and other image file creation tools, a series of files on the disk into an image file. Common formats for image files are BIN (Binary), DAO (Data Access Object), and so on. When users need to copy multiple files on a disk to another disk, users can directly copy the image files of multiple files to save time during copying, migration, and import.

Usually the data in the image file is stored in a plurality of data files, each data file having a determined file ID (Identity) and a parent ID. The data files in the image file are in a tree structure, and the file ID of the upper data file is the parent ID of the lower layer data file. In the tree structure of the image file, the file ID of the underlying data file is generally referred to as the leaf node ID of the image file, and the parent ID of the top-level data file is referred to as the root node ID of the image file. As shown in FIG. 1(A), there are eight mirror layers on node 1, which constitute three image files, which are image file A, image file B, and image file C. Specifically, the image file A is composed of a data file corresponding to the mirror layer 6, a data file corresponding to the mirror layer 3, a data file corresponding to the mirror layer 2, and a data file corresponding to the mirror layer 1. The image file B is correspondingly sent by the mirror layer 7. The data file, the data file corresponding to the mirror layer 4, the data file corresponding to the mirror layer 2, and the data file corresponding to the mirror layer 1. The image file C corresponds to the data file corresponding to the mirror layer 8, the data file corresponding to the mirror layer 5, and the mirror layer. 2 Corresponding data file and data file corresponding to mirror layer 1. In the above FIG. 1(A), the data file corresponding to the mirror layer 6 is the mirrored leaf of the image file A, the data file corresponding to the mirror layer 7 is the mirrored leaf of the image file B, and the data file corresponding to the mirror layer 8 is the image file C. The mirrored leaf; the data file corresponding to the mirror layer 1 and the data file corresponding to the mirror layer 2 are the common data files of the image file A, the image file B, and the image file C. When the image file A needs to be imported to the node 2, the prior art generally saves the image file A, the image file B, and the image file C into a compressed package, and imports the compressed package to the node C. In this manner, when the image file is imported, the entire compression package needs to be imported, which is not only time consuming, but also increases the storage cost of the node 2.

In order to solve the above problem, an embodiment of the present invention provides a method for importing an image file. FIG. 1(B) is a diagram showing the logical architecture of the method for importing an image file provided by this embodiment. As can be seen from FIG. 1(B), in this embodiment, by using a tree processing module to process a compressed package containing a plurality of image files, a compressed package containing the required image file can be obtained.

Referring to Figure 2, an illustrative computer architecture of a computer 100 for use in one embodiment of the present invention is shown. The computer 100 is a conventional desktop computer or laptop notebook, and the computer 100 includes a central processing unit (CPU) 101, a system memory 104 including a random access memory (RAM) 102 and a read only memory (ROM) 103, And connecting the system memory 104 and the central processing unit System bus 105 of 101. The computer 100 also includes a basic input/output system (I/O system) 106 that facilitates the transfer of information between various devices within the computer, and a mass storage device 107 for storing operating systems, applications, and other program modules.

In this embodiment, the central processing unit 101 is configured to execute the following instructions:

The compressed package containing multiple image files is decompressed to obtain a first description file and a plurality of data files, where the first description file is used to store a correspondence between the image file name and the leaf node identity ID, and each image is mirrored. The file data of the file is stored in at least one data file;

Obtaining a target data file according to the first description file and the plurality of data files, where the target data file stores file data of the target image file to be imported;

Import the compressed package of the target image file to the target node.

In another embodiment of the present invention, the central processing unit 101, when acquiring the target data file according to the first description file and the plurality of data files, specifically includes:

Read the file ID and parent ID of each data file from multiple data files;

Obtaining a leaf node ID of the target image file from the first description file;

The target data file is obtained based on the leaf node ID and the file ID and parent ID of the plurality of data files.

In another embodiment of the present invention, each data file includes at least a second description file, where the second description file is used to store the file ID and the parent ID of the data file according to the preset storage format;

The central processing unit 101, when reading the file ID and the parent ID of each data file from the plurality of data files, specifically includes:

In another embodiment of the present invention, when the central processing unit 101 obtains the leaf node ID of the target image file from the first description file, the method includes:

The leaf node ID corresponding to the image file name of the target image file is obtained from the mapping between the image file name and the leaf node ID stored in the first description file according to the image file name of the target image file.

In another embodiment of the present invention, the central processing unit 101, when acquiring the target data file according to the leaf node ID and the file ID and the parent ID of the plurality of data files, specifically includes:

The leaf ID is used as the starting file ID, and the parent ID of the leaf node ID is obtained from the file ID and the parent ID of the plurality of data files;

The parent ID of the leaf node ID is the file ID, and the file ID and the parent ID of all the data files are traversed until the root node ID of the target image file is obtained;

All data files between the data file where the leaf node ID is located and the data file where the root node ID is located are taken as the target data file.

In another embodiment of the present invention, the central processing unit 101, when generating the compressed package of the target image file according to the target data file, specifically includes:

Generating a target description file according to a correspondence between an image file name of the target image file and the leaf node ID stored in the first description file;

The basic input/output system 106 includes a display 108 for displaying information and an input device 109 such as a mouse or keyboard for user input of information. The display 108 and input device 109 are both connected to the central processing unit 101 via an input and output controller 110 that is coupled to the system bus 105. The basic input/output system 106 can also include an input output controller 110 for receiving and processing input from a plurality of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, input and output controller 110 also provides output to a display screen, printer, or other type of output device.

The mass storage device 107 is connected to the central processing unit 101 by a mass storage controller (not shown) connected to the system bus 105. The mass storage device 107 and its associated computer readable medium provide non-volatile storage for the computer 100. That is, the mass storage device 107 can include a computer readable medium (not shown) such as a hard disk or a CD-ROM drive.

Without loss of generality, the computer readable medium can include computer storage media and communication media. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media include RAM, ROM, EPROM, EEPROM, flash memory or other solid state storage technologies, CD-ROM, DVD or other optical storage, tape cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that the computer storage medium is not limited to the above.

According to various embodiments of the invention, the computer 100 may also be operated by a remote computer connected to the network via a network such as the Internet. That is, the computer 100 can be connected to the network 112 through a network interface unit 111 connected to the system bus 105, or can be connected to other types of networks or remote computer systems (not shown) using the network interface unit 111. .

The computer provided by the embodiment of the present invention is decompressed according to a compression package that includes multiple image files. The obtained file obtains the image file to be imported, and then the image file is specifically imported to the target node, thereby avoiding the overall import of the compressed package containing multiple image files, which not only saves the import time but also saves the storage. cost.

The embodiment of the present invention provides a method for importing an image file. Referring to FIG. 3, the method process provided by this embodiment includes:

301. Decompress a compressed package that includes multiple image files to obtain a first description file and multiple data files, where the first description file is used to store a correspondence between an image file name and a leaf node identity ID. The file data of the image files is stored in at least one data file.

302. Obtain a target data file according to the first description file and the multiple data files, where the target data file stores file data of the target image file to be imported.

303. Generate a compressed package of the target image file according to the target data file.

304. Import the compressed package of the target image file to the target node.

The method provided by the embodiment of the present invention obtains the image file to be imported according to the file obtained by decompressing the compressed package containing multiple image files, and then the image file is specifically imported to the target node, thereby avoiding the inclusion of the image file. The overall import of multiple image file compression packages not only saves import time, but also saves storage costs.

In another embodiment of the present invention, acquiring the target data file according to the first description file and the plurality of data files includes:

Read the file ID and parent ID of each data file from multiple data files;

Read the file ID and parent ID of each data file from multiple data files, including:

In another embodiment of the present invention, obtaining the leaf node ID of the target image file from the first description file includes:

The leaf corresponding to the image file name of the target image file is obtained from the correspondence between the image file name and the leaf node ID stored in the first description file according to the image file name of the target image file. Child node ID.

In another embodiment of the present invention, the target data file is obtained according to the leaf node ID and the file ID and the parent ID of the plurality of data files, including:

In another embodiment of the present invention, the compressed package of the target image file is generated according to the target data file, including:

All of the above optional technical solutions may be used in any combination to form an optional embodiment of the present invention, and will not be further described herein.

The embodiment of the present invention provides a method for importing an image file, which is an example of any one of the nodes in the computer or the computer system in the Docker environment. Referring to FIG. 4, the method provided in this embodiment is provided. The process includes:

401. Decompress a compressed package that includes multiple image files to obtain a first description file and multiple data files.

In the computer field, in order to save storage space, multiple image files on a node are usually saved as a specified compressed package. When any image file on the node is imported to another node, the compressed package can be decompressed by using decompression software, which can obtain the first description file and multiple data files.

The first description file is generally a Json file, and can be used for storing the correspondence between the image file name of the plurality of image files included in the compressed package and the leaf nodes, and the creation time of each image file. The format of the Json file is generally: "image file": {"tag": "leaf node ID"}. Among them, the tag characterizes other information such as the creation time of the image file.

Example 1, if the specified compressed package contains two image files, and the mirror names of the two image files are nginx and busybox respectively, the first description file format is as follows:

{

"nginx": {"latest": "a785ba7493fd9009be710230457f334486b11a45f7e830652d39665a451"}

"busybox": {"latest": "b785ba7493fd9009be7102790697f334486b17e830652d39665a4522"}

}

As shown in the above example 1, the creation time of the image file corresponding to the image name nginx is "latest", and the leaf node ID corresponding to the image file is:

"a785ba7493fd9009be710230457f334486b11a45f7e830652d39665a451";

The creation time of the mirror file corresponding to the mirror name is "latest". The leaf node ID corresponding to the image file is:

"b785ba7493fd9009be7102790697f334486b17e830652d39665a4522".

The number of data files obtained by decompressing the compressed packet is the same as the number of mirrored layers. If the compressed packet includes six mirroring layers, the number of data files obtained after decompression is six, and each data file corresponds to a tree. The storage structure is a mirror layer that can be used to store some or all of the file data of the image file, that is, the file data of each image file is stored in at least one data file. Usually the data file includes two files, one file is the second description file, and the other file is the Layer.tar file. Among them, the Layer.tar file is used to store the operation data of the data file. The second description file is a Json file for storing the file ID and the parent ID, the creation time, and the like of the data file according to the preset storage format. In the field of computers, the data stored in the second description file is generally referred to as metadata, and the data stored in the Layer.tar file is referred to as layer data, that is, each data file is composed of metadata and layer data. . Specifically, the data structure of the data file is as shown in Table 1 below.

Table 1

In order to describe the data file more comprehensively, the data file also includes a VERSION file, which The VERSION file can be used to describe the version number of the operational data in the Layer.tar file.

In addition, since the file data in the image file included in the compressed package is stored in different data files in a tree structure, the present embodiment is parsed in order to facilitate subsequent acquisition of the data file of the target image file to be imported. In the process of compressing the package, the correspondence between the file ID of all the data files and the parent ID may be saved in the form of a table or the like. For specific storage, the file ID and parent ID of the parsed data file may be stored as shown in Table 2 below.

Table 2

文件IDFile ID	父IDParent ID
10011001	NULLNULL
10021002	10011001
10031003	10021002
10041004	10021002

402. Read a file ID and a parent ID of each data file from a plurality of data files.

Each data file obtained by decompression includes a second description file, and the second description file stores the file ID and the parent ID of the data file according to a preset storage format, and therefore, according to the preset storage format, from the first The file ID and parent ID of each data file are read in the second description file.

Example 2, the format of the second description file is as follows:

According to the storage format of the second description file, the file ID of the data file can be obtained from the second description file:

"1f1cfc8b4072488196bdf2c7638a50940849cca3d36fle35141e82edb0a41789", The parent ID is:

"3ec5f57e729cb2f888889bfe90498a49370cf68461ea6913f0cda191f629d738".

403. Obtain a leaf node ID of the target image file from the first description file.

Based on the correspondence between the image file name and the leaf node ID stored in the first description file, after obtaining the image file name of the target image file to be imported, according to the image file name of the target image file, In the correspondence between the image file name and the leaf node ID stored in the description file, the leaf node corresponding to the mirror name of the target image file is obtained.

If the image file name of the target image file to be imported is busybox, the leaf node ID corresponding to the image file name busybox is obtained as follows:

"b785ba7493fd9009be7102790697f334486b17e830652d39665a4522".

404. Acquire a target data file according to the leaf node ID and the file ID and the parent ID of the plurality of data files.

Generally, the image file is composed of a plurality of data files between the data file where the leaf node ID is located and the data file where the root node ID is located. The data files are in a tree structure, and the data file where the leaf node ID is located constitutes the underlying data file of the image file. The data file where the root node ID is located constitutes the top-level data file of the image file. Based on the file ID and parent ID of the multiple data files, the root node ID can be obtained step by step according to the leaf node ID.

In this embodiment, when the leaf node ID and the file ID and the parent ID of the plurality of data files are obtained, the leaf node ID may be the starting file ID, and the leaf node is obtained from the file ID and the parent ID of the plurality of data files. The parent ID of the ID, and then the parent ID of the leaf node ID is the file ID, looping through the file ID and parent ID of all data files until the root node ID of the target image file is obtained, and then the data file of the leaf node ID is located. The entire data file between the data file and the data file where the root node ID is located is used as the target data file, and the file data of the target image file is stored in the target data file.

For the above process of obtaining the target data file according to the leaf node ID and the file ID and the parent ID of the plurality of data files, for the sake of easy understanding, the file ID and the parent ID of the data file stored in the above Table 2 are taken as an example for description. .

For example, the leaf node ID is 1004. As shown in Table 2, the parent ID of the leaf node ID 1004 is 1002, the parent ID 1002 is the file ID, the parent ID of the file ID 1002 is 1001, the parent ID 1001 is the file ID, and the parent ID of the file ID 1001 is NULL, the NULL is the root node ID of the image file, and then the data file where the leaf node ID 1004 is located, the data file where the file node ID 1002 is located, and the data file where the file node ID 1001 is located are used as the target data file. The structure of the target data file is leaf node ID1004 Data file > File data ID1002 where the file is located > File node ID1001.

405. Generate a compressed package of the target image file according to the target data file.

When generating a compressed package of the target image file according to the target data file, the following (1) to (2) can be used:

(1) Generating a target description file according to a correspondence between an image file name stored in the first description file and a leaf node ID.

The leaf node ID corresponding to the image file name of the target image file may be obtained based on the correspondence between the image file name and the leaf node ID stored in the first description file, and the image file name of the obtained target image file is obtained. The corresponding leaf node IDs are stored separately in a Json file to obtain the target description file.

(2) Compressing the target data file and the target description file according to a specific format to obtain a compressed package of the target image file.

The specific format may be a storage format of data in the image file compression package. Based on the specific storage format, the target data file and the target description file are compressed, and the compressed package of the target image file is obtained. At this time, the data contained in the compressed package of the target image file has the metadata, layer data, and target of the target data file. Describe the data in the file.

406. Import the compressed package of the target image file to the target node.

The target node may be any node in the computer, and may be another computer in the computer system. In this embodiment, the target node is not specifically limited. After obtaining the compressed package of the target image file, the compressed package is imported to the target node by performing a load operation. Since only the data file and the description file corresponding to the target image file are stored in the compressed package, not only the time consumption of the import process is reduced, but also the storage cost of the target node storage target image file is reduced.

For the entire process of importing the above image file, the following will be described in detail with reference to FIG. 5.

Referring to FIG. 5, in the process of importing a specified image file from one node to another, the compressed package containing the image file needs to be decompressed on the first node to obtain the first description file and multiple data. file. After that, the file ID and the parent ID of each data file are read from the second description file included in each data file, and the correspondence between the image file name and the leaf node ID stored in the first description file is The leaf node ID corresponding to the name of the specified image file is obtained, and all the data files corresponding to the specified image file are obtained according to the leaf node ID and the file ID and the parent ID of each data file. When all the data files corresponding to the specified image file and the description file of the specified image file are compressed in a specific format, the compressed package of the specified image file can be obtained. Last pass The overload operation imports the compressed package of the specified image file onto another node.

Based on the import process diagram of the image file shown in FIG. 5 above, a specific example will be described below.

Referring to FIG. 6, the compressed file containing multiple image files is decompressed, and the first description file and the six data files are obtained. The six data files correspond to six mirror layers, and the file ID is 1001 (the parent ID is NULL). Data file, data file with file ID 1002 (parent ID 1001), data file with file ID 1003 (parent ID 1002), data file with file ID 1004 (parent ID 1003), file ID is A data file of 1005 (parent ID is 1002) and a data file with a file ID of 1006 (parent ID is 1005). According to the first description file, the leaf node ID corresponding to the image file A is 1004, and the leaf node ID corresponding to the image file B is 1005.

If the image file A needs to be imported to the target node, the parent ID 1003 of the leaf node ID 1004 is obtained according to the leaf node ID 1004 corresponding to the image file A, and the parent ID 1003 of the leaf node ID 1004 is used as the file ID to obtain the parent ID 1002 of the file ID 1003. The parent ID 1002 is used as the file ID, the parent ID 1001 of the file ID 1002 is obtained, and the parent ID 1001 is used as the file ID, and the parent ID of the file ID 1001 is obtained as NULL, and the parent node ID NULL is the root node ID, which is obtained based on the obtained file ID. The target data file corresponding to the image file A is: the data file where the file ID 1004 is located > the data file where the file ID 1003 is located > the data file where the file ID 1002 is located > the data file where the file ID 1001 is located. Then, according to the correspondence between the image file name and the leaf node stored in the first description file, the correspondence between the image file A and the leaf node ID 1004 is obtained, and the target description file is generated based on the correspondence. The compressed file corresponding to the image file A can be obtained by compressing the data file in which the file ID 1004 is located, the data file in which the file ID 1003 is located, the data file in which the file ID 1002 is located, the data file in which the file ID 1001 is located, and the target description file in a specific format. Finally, the compression package corresponding to the image file A is imported to the target node by a loading operation.

Referring to FIG. 7, an embodiment of the present invention provides an apparatus for importing an image file, where the apparatus includes:

The decompression module 701 is configured to decompress a compressed package that includes multiple image files to obtain a first description file and multiple data files, where the first description file is used to store the image file name and the leaf segment. Point mapping identifier ID, the file data of each image file is stored in at least one data file;

The obtaining module 702 is configured to obtain a target data file according to the first description file and the plurality of data files, where the file data of the target image file to be imported is stored in the target data file;

a generating module 703, configured to generate a compressed package of the target image file according to the target data file;

The import module 704 is configured to import the compressed package of the target image file to the target node.

In another embodiment of the present invention, the obtaining module 702 is configured to read a file ID and a parent ID of each data file from a plurality of data files, and obtain a leaf node ID of the target image file from the first description file; The target data file is obtained based on the leaf node ID and the file ID and parent ID of the plurality of data files.

The obtaining module 702 is specifically configured to read the file ID and the parent ID of each data file from the second description file corresponding to each data file.

In another embodiment of the present invention, the obtaining module 702 is specifically configured to obtain the target image from the correspondence between the image file name and the leaf node ID stored in the first description file according to the image file name of the target image file. The leaf node ID corresponding to the image file name of the file.

In another embodiment of the present invention, the obtaining module 702 is specifically configured to obtain the parent ID of the leaf node ID from the file ID and the parent ID of the plurality of data files by using the leaf node ID as the starting file ID; The parent ID of the node ID is the file ID. It loops through the file ID and parent ID of all data files until the root node ID of the target image file is obtained. The data file where the leaf node ID is located and the data file where the root node ID is located All data files are used as target data files.

In another embodiment of the present invention, the generating module 703 is specifically configured to generate a target description file according to a correspondence between an image file name of the target image file and the leaf node ID stored in the first description file; The target data file and the target description file are compressed to obtain a compressed package of the target image file.

In summary, the device provided by the embodiment of the present invention obtains an image file to be imported according to a file obtained by decompressing a compressed package that includes multiple image files, and then specifically imports the image file into a target node. This avoids the overall import of compressed packages containing multiple image files, which not only saves import time, but also saves storage costs.

It should be noted that, when the image file importing device provided in the foregoing embodiment is imported, the image file is only exemplified by the division of the above functional modules. In actual applications, the functions may be allocated by different functional modules according to requirements. Upon completion, the internal structure of the import device of the image file is divided into different functional modules to complete all or part of the functions described above. In addition, the embodiment of the method for importing the image file provided by the foregoing embodiment is the same as the embodiment of the method for importing the image file, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.

A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

A method for importing an image file, the method comprising:

Decompressing a compressed package that includes multiple image files to obtain a first description file and a plurality of data files, where the first description file is used to store a correspondence between an image file name and a leaf node identity ID, each The file data of the image file is stored in at least one data file;

Acquiring, according to the first description file and the plurality of data files, a target data file, where the target data file stores file data of a target image file to be imported;

Generating a compressed package of the target image file according to the target data file;

Import the compressed package of the target image file to the target node.
The method according to claim 1, wherein the obtaining the target data file according to the first description file and the plurality of data files comprises:

Read the file ID and parent ID of each data file from multiple data files;

Obtaining, from the first description file, a leaf node ID of the target image file;

The target data file is acquired according to the leaf node ID and the file ID and the parent ID of the plurality of data files.
The method according to claim 2, wherein each of the data files includes at least a second description file, and the second description file is configured to store a file ID and a parent ID of the data file according to a preset storage format;

Reading the file ID and the parent ID of each data file from the plurality of data files, including:

The file ID and parent ID of each data file are read from the second description file corresponding to each data file.
The method according to claim 2, wherein the obtaining the leaf node ID of the target image file from the first description file comprises:

And obtaining, according to the image file name of the target image file, the leaf node ID corresponding to the image file name of the target image file, from the correspondence between the image file name and the leaf node ID stored in the first description file.
The method according to claim 2, wherein the obtaining the target data file according to the leaf node ID and the file ID and the parent ID of the plurality of data files comprises:

Obtaining, from the file ID and the parent ID of the plurality of data files, a parent ID of the leaf node ID, by using the leaf node ID as a starting file ID;

Taking the parent ID of the leaf node ID as the file ID, looping through the file ID and the parent ID of all the data files until the root node ID of the target image file is obtained;

All the data files between the data file where the leaf node ID is located and the data file where the root node ID is located are used as the target data file.
The method according to claim 1, wherein the generating the compressed package of the target image file according to the target data file comprises:

Generating a target description file according to a correspondence between an image file name of the target image file and a leaf node ID stored in the first description file;

The target data file and the target description file are compressed according to a specific format to obtain a compressed package of the target image file.
An apparatus for importing an image file, the apparatus comprising:

a decompression module, configured to decompress a compressed package that includes multiple image files to obtain a first description file and multiple data files, where the first description file is used to store between the image file name and the leaf node identity ID Correspondence, the file data of each image file is stored in at least one data file;

An acquiring module, configured to acquire, according to the first description file and the plurality of data files, a target data file, where the target data file stores file data of a target image file to be imported;

a generating module, configured to generate a compressed package of the target image file according to the target data file;

The import module is configured to import the compressed package of the target image file to the target node.
The apparatus according to claim 7, wherein the obtaining module is configured to read a file ID and a parent ID of each data file from a plurality of data files; and obtain the a leaf node ID of the target image file; acquiring the target data file according to the leaf node ID and the file ID and the parent ID of the plurality of data files.
The device according to claim 8, wherein each of the data files includes at least a second description file, and the second description file is configured to store a file ID and a parent ID of the data file according to a preset storage format;

The obtaining module is specifically configured to read a file ID and a parent ID of each data file from a second description file corresponding to each data file.
The device according to claim 8, wherein the obtaining module is specifically configured to: correspond to an image file name stored from the first description file and a leaf node ID according to an image file name of the target image file. In the relationship, the leaf node ID corresponding to the image file name of the target image file is obtained.
The device according to claim 8, wherein the obtaining module is configured to obtain, by using the leaf node ID as a starting file ID, a file ID and a parent ID of the plurality of data files. The parent ID of the leaf node ID; the parent ID of the leaf node ID is the file ID, and the file ID and the parent ID of all the data files are traversed until the root node ID of the target image file is obtained; All data files between the data file where the node ID is located and the data file where the root node ID is located are used as the target data file.
The device according to claim 7, wherein the generating module is configured to: according to a correspondence between an image file name of the target image file and a leaf node ID stored in the first description file, Generating a target description file; compressing the target data file and the target description file according to a specific format to obtain a compressed package of the target image file.