CN112306975A - File storage method, device, equipment and computer readable storage medium - Google Patents
File storage method, device, equipment and computer readable storage medium Download PDFInfo
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- CN112306975A CN112306975A CN202011229953.7A CN202011229953A CN112306975A CN 112306975 A CN112306975 A CN 112306975A CN 202011229953 A CN202011229953 A CN 202011229953A CN 112306975 A CN112306975 A CN 112306975A
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000006835 compression Effects 0.000 claims abstract description 95
- 238000007906 compression Methods 0.000 claims abstract description 86
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 50
- 238000004590 computer program Methods 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013144 data compression Methods 0.000 description 1
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/17—Details of further file system functions
- G06F16/174—Redundancy elimination performed by the file system
- G06F16/1744—Redundancy elimination performed by the file system using compression, e.g. sparse files
Abstract
The invention discloses a file storage method, which comprises the following steps: analyzing the received file storage request to obtain a target original file to be stored and a storage mode identifier; judging whether the storage mode identification is compressed storage or not; if so, acquiring a preset compression algorithm; performing hardware compression on a target original file by using a preset compression algorithm to obtain a target compressed file; and storing the target compressed file to a storage device. By applying the file storage method provided by the invention, the file storage speed is greatly improved. The invention also discloses a file storage device, equipment and a storage medium, and has corresponding technical effects.
Description
Technical Field
The present invention relates to the field of storage technologies, and in particular, to a file storage method, apparatus, device, and computer-readable storage medium.
Background
With the development of big data, data permeates all walks of life, and more attention is paid to data of a plurality of enterprises, and enterprise information departments need to establish a special big data service system for business departments, collect and analyze data needed by the businesses, and provide operation guidance based on the big data. Efficient storage of file data is therefore required.
The existing file storage mode is to store the file directly or store the file after compressing the file by using some software compression algorithms, so that the file storage speed is slow, and the space required by the file storage is large.
In summary, how to effectively solve the problems of slow file storage speed, large space required for file storage, and the like in the existing file storage method is a problem that needs to be solved urgently by a person skilled in the art at present.
Disclosure of Invention
The invention aims to provide a file storage method, which greatly improves the file storage speed; another object of the present invention is to provide a file storage apparatus, a device and a computer-readable storage medium.
In order to solve the technical problems, the invention provides the following technical scheme:
a file storage method, comprising:
analyzing the received file storage request to obtain a target original file to be stored and a storage mode identifier;
judging whether the storage mode identification is compressed storage or not;
if so, acquiring a preset compression algorithm;
performing hardware compression on the target original file by using the preset compression algorithm to obtain a target compressed file;
and storing the target compressed file to a storage device.
In a specific embodiment of the present invention, after obtaining a target original file to be stored and a storage manner identifier, the method further includes:
and generating a first file directory entry according to the target original file and the storage mode identifier.
In a specific embodiment of the present invention, storing the target compressed file to a storage device includes:
searching the initial cluster number of the target original file from the first file directory entry;
and storing the target compressed file to the storage equipment according to the starting cluster number.
In a specific embodiment of the present invention, after performing hardware compression on the target original file by using the preset compression algorithm to obtain a target compressed file, the method further includes:
calculating the file size of the target compressed file;
after storing the target compressed file to the storage device according to the starting cluster number, the method further comprises:
updating the first file directory entry according to the file size and the initial cluster number to obtain a second file directory entry;
storing the second file directory entry to the storage device.
A file storage device comprising:
the request analysis module is used for analyzing the received file storage request to obtain a target original file to be stored and a storage mode identifier;
the judging module is used for judging whether the storage mode identifier is compressed storage or not;
the compression algorithm acquisition module is used for acquiring a preset compression algorithm when the storage mode identifier is determined to be compression storage;
the compressed file obtaining module is used for performing hardware compression on the target original file by using the preset compression algorithm to obtain a target compressed file;
and the file storage module is used for storing the target compressed file to a storage device.
In one embodiment of the present invention, the method further comprises:
and the directory entry generating module is used for generating a first file directory entry according to the target original file and the storage mode identifier after the target original file to be stored and the storage mode identifier are obtained.
In a specific embodiment of the present invention, the file storage module includes:
a starting cluster number searching sub-module, configured to search a starting cluster number of the target original file from the first file directory entry;
and the file storage submodule is used for storing the target compressed file to the storage equipment according to the starting cluster number.
In one embodiment of the present invention, the method further comprises:
the file size calculation module is used for calculating the file size of the target compressed file after the target original file is subjected to hardware compression by using the preset compression algorithm to obtain the target compressed file;
a directory entry updating module, configured to, after the target compressed file is stored in the storage device according to the starting cluster number, perform an updating operation on the first file directory entry according to the file size and the starting cluster number, so as to obtain a second file directory entry;
and the directory entry storage module is used for storing the second file directory entry to the storage device.
A file storage device comprising:
a memory for storing a computer program;
a processor for implementing the steps of the file storage method as described above when executing the computer program.
A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the file storage method as set forth above.
The file storage method provided by the invention analyzes the received file storage request to obtain a target original file to be stored and a storage mode identifier; judging whether the storage mode identification is compressed storage or not; if so, acquiring a preset compression algorithm; performing hardware compression on a target original file by using a preset compression algorithm to obtain a target compressed file; and storing the target compressed file to a storage device. When the storage mode identification of the target original file obtained by analysis is compression storage, the target original file is compressed by hardware in a hardware compression mode, and the target original file is compressed by a compression program in compression hardware. Compared with the existing mode of directly storing the file or storing the file after compressing the file by using a software compression algorithm in a CPU main program, the method has the advantage that the file storage speed is greatly increased.
Correspondingly, the invention also provides a file storage device, equipment and a computer readable storage medium corresponding to the file storage method, which have the technical effects and are not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flowchart illustrating an implementation of a file storage method according to an embodiment of the present invention;
FIG. 2 is a flowchart of another implementation of a file storage method according to an embodiment of the present invention;
FIG. 3 is a block diagram of a file storage device according to an embodiment of the present invention;
fig. 4 is a block diagram of a file storage device according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, fig. 1 is a flowchart of an implementation of a file storage method according to an embodiment of the present invention, where the method may include the following steps:
s101: and analyzing the received file storage request to obtain a target original file to be stored and a storage mode identifier.
When the file storage is needed, a file storage request is sent to a file storage management center, and the file storage request comprises a target original file to be stored and a storage mode identifier. And the file storage management center receives the file storage request and analyzes the received file storage request to obtain a target original file to be stored and a storage mode identifier. The storage mode identification can identify the storage mode of the target original file to be stored, such as storing according to the size of the original file or storing after compression; the data is stored in a plaintext form, or is stored in an encrypted ciphertext form through encryption.
S102: and judging whether the storage mode identifier is compressed storage, if not, executing the step S103, and if not, executing the step S104.
After the storage mode identifier is obtained through analysis, whether the storage mode identifier is compressed storage is judged, if not, it is indicated that the remaining storage space of the current storage device is possibly large or the reading frequency of the target original file is high, step S103 is executed, otherwise, it is indicated that the remaining storage space of the current storage device is possibly small or the reading frequency of the target original file is low, and step S104 is executed.
S103: and storing the target original file to a storage device.
And when the storage mode identification is determined not to be compressed storage, storing the target original file to the storage device. The target original file is directly stored, so that the target original file can be conveniently read subsequently.
S104: and acquiring a preset compression algorithm.
A compression algorithm for compressing the original file is preset, and may be an LZ4 compression algorithm, an LZ77 compression algorithm, a zstd (zstandard) compression algorithm, or the like. And when the storage mode identification is determined to be compressed storage, acquiring a preset compression algorithm.
S105: and performing hardware compression on the target original file by using a preset compression algorithm to obtain a target compressed file.
After the preset compression algorithm is obtained, hardware compression is carried out on the target original file by using the preset compression algorithm, and a target compressed file is obtained. The software compression algorithm is cooperated with the hardware compression, so that the hardware compression of the target original file is completed, and the file compression speed is improved.
S106: and storing the target compressed file to a storage device.
And after the target original file is subjected to hardware compression by using a preset compression algorithm to obtain a target compressed file, storing the target compressed file to a storage device. And when the storage mode of the target original file obtained by analysis is identified as compressed storage, performing hardware compression on the target original file by using a hardware compression mode. Compared with the existing mode of directly storing the file or storing the file after the file is compressed by using a software compression algorithm, the method and the device have the advantages that the file storage speed is greatly increased, and the file storage space is saved.
The file storage method provided by the invention analyzes the received file storage request to obtain a target original file to be stored and a storage mode identifier; judging whether the storage mode identification is compressed storage or not; if so, acquiring a preset compression algorithm; performing hardware compression on a target original file by using a preset compression algorithm to obtain a target compressed file; and storing the target compressed file to a storage device. When the storage mode identification of the target original file obtained by analysis is compression storage, the target original file is compressed by hardware in a hardware compression mode, and the target original file is compressed by a compression program in compression hardware. Compared with the existing mode of directly storing the file or storing the file after compressing the file by using a software compression algorithm in a CPU main program, the method has the advantage that the file storage speed is greatly increased.
It should be noted that, based on the first embodiment, the embodiment of the present invention further provides a corresponding improvement scheme. In the following embodiments, steps that are the same as or correspond to those in the first embodiment may be referred to each other, and corresponding advantageous effects may also be referred to each other, which are not described in detail in the following modified embodiments.
Example two:
referring to fig. 2, fig. 2 is a flowchart of another implementation of a file storage method according to an embodiment of the present invention, where the method may include the following steps:
s201: and analyzing the received file storage request to obtain a target original file to be stored and a storage mode identifier.
S202: and generating a first file directory entry according to the target original file and the storage mode identifier.
After analyzing the received file storage request to obtain a target original file to be stored and a storage mode identifier, generating a first file directory entry according to the target original file and the storage mode identifier.
As shown in table 1, it is a definition table of a file directory entry.
TABLE 1
By setting file compression record information in the file directory entry and performing compression information interaction between the software and the hardware in the form of the file directory entry, the flow of data compression performed by the cooperation of the software and the hardware is greatly simplified, and the compression efficiency is improved.
S203: and judging whether the storage mode identifier is compressed storage, if not, executing the step S204, and if not, executing the step S205.
S204: and storing the target original file to a storage device.
S205: and acquiring a preset compression algorithm.
S206: and performing hardware compression on the target original file by using a preset compression algorithm to obtain a target compressed file.
S207: the file size of the target compressed file is calculated.
And after the target original file is subjected to hardware compression by using a preset compression algorithm to obtain a target compressed file, calculating the file size of the target compressed file.
S208: and searching the initial cluster number of the target original file from the first file directory entry.
Files are stored in clusters and if a file requires more than one cluster space, it is described by the file allocation table FAT table. The FAT structure is used to indicate the next cluster of the file and also to indicate the allocation status of the clusters. The main differences between the three file systems FAT12, FAT16, FAT32 are different from the size of FAT entries.
After the target original file is subjected to hardware compression by using a preset compression algorithm to obtain a target compressed file, the initial cluster number of the target original file is searched from the first file directory entry.
S209: and storing the target compressed file to the storage device according to the starting cluster number.
After the initial cluster number of the target original file is found, the target compressed file is stored to the storage device according to the initial cluster number, so that the file storage speed is further improved.
S210: and updating the first file directory entry according to the file size and the initial cluster number to obtain a second file directory entry.
And after the file size of the target compressed file is obtained through calculation, updating the first file directory entry according to the file size and the initial cluster number to obtain a second file directory entry.
S211: and storing the second file directory entry to the storage device.
And after updating the first file directory entry according to the file size and the initial cluster number to obtain a second file directory entry, storing the second file directory entry to the storage device. Therefore, when the target compressed file is read subsequently, the file reading is carried out according to the content recorded in the second file directory entry, and the file reading speed is improved.
The present embodiment is different from the first embodiment corresponding to the technical solution claimed in independent claim 1, and the technical solutions claimed in the dependent claims 2 to 4 are added, and of course, according to different practical situations and requirements, the technical solutions claimed in the dependent claims can be flexibly combined on the basis of not affecting the completeness of the solutions, so as to better meet the requirements of different use scenarios.
Corresponding to the above method embodiment, the present invention further provides a file storage apparatus, and the file storage apparatus described below and the file storage method described above may be referred to in correspondence with each other.
Referring to fig. 3, fig. 3 is a block diagram of a file storage apparatus according to an embodiment of the present invention, where the file storage apparatus may include:
the request analysis module 31 is configured to analyze the received file storage request to obtain a target original file to be stored and a storage mode identifier;
a judging module 32, configured to judge whether the storage mode identifier is compressed storage;
a compression algorithm obtaining module 33, configured to obtain a preset compression algorithm when it is determined that the storage mode identifier is compression storage;
a compressed file obtaining module 34, configured to perform hardware compression on the target original file by using a preset compression algorithm to obtain a target compressed file;
and the file storage module 35 is configured to store the target compressed file in the storage device.
The file storage device provided by the invention analyzes the received file storage request to obtain a target original file to be stored and a storage mode identifier; judging whether the storage mode identification is compressed storage or not; if so, acquiring a preset compression algorithm; performing hardware compression on a target original file by using a preset compression algorithm to obtain a target compressed file; and storing the target compressed file to a storage device. When the storage mode identification of the target original file obtained by analysis is compression storage, the target original file is compressed by hardware in a hardware compression mode, and the target original file is compressed by a compression program in compression hardware. Compared with the existing mode of directly storing the file or storing the file after compressing the file by using a software compression algorithm in a CPU main program, the method has the advantage that the file storage speed is greatly increased.
In one embodiment of the present invention, the apparatus may further include:
and the directory entry generating module is used for generating a first file directory entry according to the target original file and the storage mode identifier after the target original file to be stored and the storage mode identifier are obtained.
In an embodiment of the present invention, the file storage module 35 includes:
the starting cluster number searching submodule is used for searching the starting cluster number of the target original file from the first file directory entry;
and the file storage submodule is used for storing the target compressed file to the storage equipment according to the initial cluster number.
In one embodiment of the present invention, the apparatus may further include:
the file size calculation module is used for calculating the file size of the target compressed file after the target original file is subjected to hardware compression by using a preset compression algorithm to obtain the target compressed file;
the directory entry updating module is used for updating the first file directory entry according to the file size and the initial cluster number after the target compressed file is stored in the storage device according to the initial cluster number to obtain a second file directory entry;
and the directory entry storage module is used for storing the second file directory entry to the storage device.
Corresponding to the above method embodiment, referring to fig. 4, fig. 4 is a schematic diagram of a file storage device provided by the present invention, where the file storage device may include:
a memory 41 for storing a computer program;
the processor 42, when executing the computer program stored in the memory 41, may implement the following steps:
analyzing the received file storage request to obtain a target original file to be stored and a storage mode identifier; judging whether the storage mode identification is compressed storage or not; if so, acquiring a preset compression algorithm; performing hardware compression on a target original file by using a preset compression algorithm to obtain a target compressed file; and storing the target compressed file to a storage device.
For the introduction of the device provided by the present invention, please refer to the above method embodiment, which is not described herein again.
Corresponding to the above method embodiment, the present invention further provides a computer-readable storage medium having a computer program stored thereon, the computer program, when executed by a processor, implementing the steps of:
analyzing the received file storage request to obtain a target original file to be stored and a storage mode identifier; judging whether the storage mode identification is compressed storage or not; if so, acquiring a preset compression algorithm; performing hardware compression on a target original file by using a preset compression algorithm to obtain a target compressed file; and storing the target compressed file to a storage device.
The computer-readable storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
For the introduction of the computer-readable storage medium provided by the present invention, please refer to the above method embodiments, which are not described herein again.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device, the apparatus and the computer-readable storage medium disclosed in the embodiments correspond to the method disclosed in the embodiments, so that the description is simple, and the relevant points can be referred to the description of the method.
The principle and the implementation of the present invention are explained in the present application by using specific examples, and the above description of the embodiments is only used to help understanding the technical solution and the core idea of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A file storage method, comprising:
analyzing the received file storage request to obtain a target original file to be stored and a storage mode identifier;
judging whether the storage mode identification is compressed storage or not;
if so, acquiring a preset compression algorithm;
performing hardware compression on the target original file by using the preset compression algorithm to obtain a target compressed file;
and storing the target compressed file to a storage device.
2. The file storage method according to claim 1, further comprising, after obtaining the target original file to be stored and the storage manner identifier:
and generating a first file directory entry according to the target original file and the storage mode identifier.
3. The file storage method according to claim 2, wherein storing the target compressed file to a storage device comprises:
searching the initial cluster number of the target original file from the first file directory entry;
and storing the target compressed file to the storage equipment according to the starting cluster number.
4. The method according to claim 3, wherein after the target original file is hardware-compressed by using the preset compression algorithm to obtain a target compressed file, the method further comprises:
calculating the file size of the target compressed file;
after storing the target compressed file to the storage device according to the starting cluster number, the method further comprises:
updating the first file directory entry according to the file size and the initial cluster number to obtain a second file directory entry;
storing the second file directory entry to the storage device.
5. A file storage device, comprising:
the request analysis module is used for analyzing the received file storage request to obtain a target original file to be stored and a storage mode identifier;
the judging module is used for judging whether the storage mode identifier is compressed storage or not;
the compression algorithm acquisition module is used for acquiring a preset compression algorithm when the storage mode identifier is determined to be compression storage;
the compressed file obtaining module is used for performing hardware compression on the target original file by using the preset compression algorithm to obtain a target compressed file;
and the file storage module is used for storing the target compressed file to a storage device.
6. The file storage device according to claim 5, further comprising:
and the directory entry generating module is used for generating a first file directory entry according to the target original file and the storage mode identifier after the target original file to be stored and the storage mode identifier are obtained.
7. The file storage device of claim 6, wherein the file storage module comprises:
a starting cluster number searching sub-module, configured to search a starting cluster number of the target original file from the first file directory entry;
and the file storage submodule is used for storing the target compressed file to the storage equipment according to the starting cluster number.
8. The file storage device according to claim 7, further comprising:
the file size calculation module is used for calculating the file size of the target compressed file after the target original file is subjected to hardware compression by using the preset compression algorithm to obtain the target compressed file;
a directory entry updating module, configured to, after the target compressed file is stored in the storage device according to the starting cluster number, perform an updating operation on the first file directory entry according to the file size and the starting cluster number, so as to obtain a second file directory entry;
and the directory entry storage module is used for storing the second file directory entry to the storage device.
9. A file storage device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the file storage method according to any one of claims 1 to 4 when executing said computer program.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the file storage method according to any one of claims 1 to 4.
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