CN109491966A - A kind of file search method and relevant apparatus - Google Patents
A kind of file search method and relevant apparatus Download PDFInfo
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- CN109491966A CN109491966A CN201811229873.4A CN201811229873A CN109491966A CN 109491966 A CN109491966 A CN 109491966A CN 201811229873 A CN201811229873 A CN 201811229873A CN 109491966 A CN109491966 A CN 109491966A
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Abstract
This application discloses a kind of file search methods, comprising: the capital and small letter processing mode of file system is determined according to the configuration parameter in Metadata Service；When the capital and small letter processing mode is insensitive processing, the file name of All Files is subjected to unified size conversion, obtains multiple key values；Algorithm screening is carried out according to the search criterion received key value corresponding to All Files, obtains file destination.By the way that the file name of All Files is converted to the unified key value of capital and small letter, the faster algorithm screening of search speed can be used to carry out the lookup of file destination, be lifted at capital and small letter it is insensitive in the case where file search speed, improve the service efficiency of file system.Disclosed herein as well is a kind of file search device, server and computer readable storage mediums, have the above beneficial effect.
Description
Technical field
This application involves field of computer technology, in particular to a kind of file search method, file search device, server
And computer readable storage medium.
Background technique
In file system, since there are the differences of capital and small letter for English, and size can be used with when writing file name.
Therefore, generally there are the processing method of two kinds of file names, case sensitive processing and sizes in the file system of computer
Write insensitive processing.Wherein, what case sensitive processing referred to is exactly when handling the file name of file system by filename
Capital and small letter is distinguished, for example, two file names are converted to, capitalization is all identical, but capital and small letter is mixed in Old Name
With can be both of these documents name at being regarded as two different file names due to carrying out sensitive process in file system.In addition,
What the insensitive processing of capital and small letter referred to is exactly to the capital and small letter in filename when handling the file name of file system without area
Not, all identical for example, after two file names are converted to capitalization, both of these documents name will be regarded as in file system
Two identical file names.
Therefore, there can be the file search method of two kinds of capital and small letter dispositions.Wherein, current techniques are unwise in capital and small letter
In the case that sense is handled, file system, which carries out file search, to be searched by way of traversal, that is, according to lookup item
Part retrieves each file, causes file search speed extremely low, is unable to satisfy normal file search demand, reduces file system
Service efficiency.
Therefore, how to improve file search speed of file system in the case where capital and small letter insensitive processing is this field
The Important Problems of technical staff's concern.
Summary of the invention
The purpose of the application is to provide a kind of file search method, file search device, server and computer-readable
Storage medium, by the way that the file name of All Files is converted to the unified key value of capital and small letter, so that it may more using search speed
Fast algorithm screening carries out the lookup of file destination, be lifted at capital and small letter it is insensitive in the case where file search speed, improve
The service efficiency of file system.
In order to solve the above technical problems, the application provides file search method, comprising:
The capital and small letter processing mode of file system is determined according to the configuration parameter in Metadata Service；
When the capital and small letter processing mode is insensitive processing, the file name of All Files is subjected to unified size and is turned
It changes, obtains multiple key values；
Algorithm screening is carried out according to the search criterion received key value corresponding to All Files, obtains file destination.
Optionally, further includes:
When the capital and small letter processing method is sensitive process, according to the search criterion received to the file of All Files
Name carries out algorithm screening, obtains file destination.
Optionally, when the capital and small letter processing mode is insensitive processing, the file name of All Files is united
One size conversion, after obtaining multiple key values, further includes:
The identical file of key value is ranked up according to corresponding inode number, obtains the file table of corresponding key value；
When the key value is searched, using first file of corresponding file table as the file destination.
Optionally, algorithm screening is carried out according to the search criterion received key value corresponding to All Files, obtains target
File, comprising:
The screening of key value-based algorithm is carried out to all key values according to the search criterion received, obtains target key
Value；
The file destination is got according to the unique identification of the target key value.
The application also provides a kind of file search device, comprising:
Processing mode determining module, for being determined at the capital and small letter of file system according to the configuration parameter in Metadata Service
Reason mode；
Insensitive processing module is used for when the capital and small letter processing mode is insensitive processing, by the text of All Files
Part title carries out unified size conversion, obtains multiple key values；
Searching module is obtained for carrying out algorithm screening according to the search criterion received key value corresponding to All Files
To file destination.
Optionally, further includes:
Sensitive process module is used for when the capital and small letter processing method is sensitive process, according to the lookup item received
Part carries out algorithm screening to the filename of All Files, obtains file destination.
Optionally, the insensitive processing module, further includes:
File table acquiring unit is obtained for the identical file of key value to be ranked up according to corresponding inode number
The file table of corresponding key value；
File table searches processing unit, for when the key value is searched, by first text of corresponding file table
Part is as the file destination.
Optionally, the searching module, comprising:
Key value searching unit, for carrying out the calculation of key value to all key values according to the search criterion received
Method screening, obtains target key value；
File destination acquiring unit, for getting the file destination according to the unique identification of the target key value.
The application also provides a kind of server, comprising:
Memory, for storing computer program；
Processor, the step of file search method as described above is realized when for executing the computer program.
The application also provides a kind of computer readable storage medium, and calculating is stored on the computer readable storage medium
The step of machine program, the computer program realizes file search method as described above when being executed by processor.
A kind of file search method provided herein, comprising: text is determined according to the configuration parameter in Metadata Service
The capital and small letter processing mode of part system；When the capital and small letter processing mode is insensitive processing, by the filename of All Files
Title carries out unified size conversion, obtains multiple key values；According to the search criterion received key value corresponding to All Files into
The screening of row algorithm, obtains file destination.
By the way that the file name of All Files is converted to the unified key value of capital and small letter, so that it may more using search speed
Fast algorithm screening carries out the lookup of file destination, be lifted at capital and small letter it is insensitive in the case where file search speed, improve
The service efficiency of file system, and the filename of file is not changed in the application but uses the key mutually mapped
Value is searched, and avoids being changed old file name, does not change original title, can be with when carrying out case sensitive processing
Flexible conversion improves the flexibility switched between two kinds of processing modes, improves exploitativeness.
The application also provides a kind of file search device, server and computer readable storage medium, and have has above
Beneficial effect, this will not be repeated here.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow chart of file search method provided by the embodiment of the present application；
Fig. 2 is a kind of structural schematic diagram of file search device provided by the embodiment of the present application.
Specific embodiment
The core of the application is to provide a kind of file search method, file search device, server and computer-readable
Storage medium, by the way that the file name of All Files is converted to the unified key value of capital and small letter, so that it may more using search speed
Fast algorithm screening carries out the lookup of file destination, be lifted at capital and small letter it is insensitive in the case where file search speed, improve
The service efficiency of file system.
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
For the prior art in the case where capital and small letter insensitive processing, file system, which carries out file search, can pass through the side of traversal
Formula is searched, that is, retrieves each file according to search criterion, causes file search speed extremely low, is unable to satisfy normal
File search demand, reduce the service efficiency of file system.Specifically, being primarily due to carry out capital and small letter in the prior art
After insensitive processing, the lookup method for carrying out algorithm needs to be ranked up file processing, and after capital and small letter insensitive processing
It needs to be ranked up file processing, then carries out searching the situation for being easy to appear and searching mistake, therefore, the prior art is only with one
The mode of one comparison is searched, that is, the mode traversed is searched, and is not available the faster algorithm screening of search speed,
So search speed is lower to be unable to satisfy the demand normally searched.
Therefore, the embodiment of the present application provides a kind of file search method, by being converted to the file name of All Files
The unified key value of capital and small letter, so that it may which the lookup that file destination is carried out using the faster algorithm screening of search speed is lifted at big
File search speed in the case that small letter is insensitive, improves the service efficiency of file system, and not to text in the present embodiment
The filename of part is changed but is searched using the key value mutually mapped, is avoided being changed old file name, not changed
Become original title, the spirit switched between two kinds of processing modes can be improved when carrying out case sensitive processing with flexible conversion
Activity improves exploitativeness.
Referring to FIG. 1, Fig. 1 is a kind of flow chart of file search method provided by the embodiment of the present application.
This method may include:
S101 determines the capital and small letter processing mode of file system according to the configuration parameter in Metadata Service；
This step is intended to before using file system, is determined the capital and small letter processing method of file system and is written to first number
According to the configuration parameter of service, when beginning to use file system, required for being determined according to the configuration parameter in the Metadata Service
The capital and small letter processing method of execution.
Capital and small letter processing mode is usually determined that when file system is established in the prior art, that is, each big
The corresponding information of small letter processing mode is written in the equipment of persistence, can only use a kind of capital and small letter processing side when using every time
Formula, and from the beginning can only change again from persistence equipment when changing the capital and small letter processing mode of file system once, implement not
It is convenient, while switching time-consuming and also comparing long, reduce the service efficiency of file system.
It therefore, is specifically when needing to read file, in memory according to determining capital and small letter processing mode in the present embodiment
Relevant file structure is established, does not change the file structure in persistence equipment.It is carried out when in two kinds of capital and small letter processing modes
When switching, it is only necessary to change the data structure in memory it is achieved that switch speed is very fast, switching mode is flexible, is conducive to this
The implementation of technology.
So the present embodiment determines that capital and small letter processing mode at the beginning, corresponding processing is taken so as to subsequent
Measure.
The file name of All Files is carried out unified size when capital and small letter processing mode is insensitive processing by S102
Conversion, obtains multiple key values；
On the basis of step S101, this step is intended to when capital and small letter processing mode is insensitive processing, by all texts
The file name of part carries out unified size conversion, obtains multiple key values.
Wherein, unified size conversion is carried out to file name, refers to and file name is converted to unified capital and small letter, specifically
, it can be converted into capitalization, small letter can also be converted into.It will can pass through calculation after the capital and small letter unification of file name
Method carries out lookup processing, to improve the search speed of file.
It should be noted that being not the name that will be converted after carrying out unified size conversion to file name in the present embodiment
Claim to replace original file name, but retain original file name, the name after conversion is referred to as key value and is saved, is retained
Original title can flexibly be switched in two kinds of capital and small letter processing modes.
Wherein, key value can be construed to key value.
S103 carries out algorithm screening according to the search criterion received key value corresponding to All Files, obtains target text
Part.
On the basis of step S102, this step is intended to according to the search criterion key corresponding to All Files received
Value carries out algorithm screening, obtains file destination.This step due to that can be ranked up to key value on the basis of key value, into
And the faster algorithm of search speed can be used to screen, to improve the speed of file search.Wherein, algorithm screening can use
Any one algorithm screening technique that the prior art provides, is not specifically limited herein.
Optionally, the present embodiment can also include:
When capital and small letter processing method is sensitive process, according to the search criterion received to the filenames of All Files into
The screening of row algorithm, obtains file destination.
This optinal plan is exactly to be screened, obtained to algorithm according to search criterion in the case that size is written as sensitive process
To file destination.It is, the problem of there is no can not sort in the case where sensitivity, therefore can directly be sieved using algorithm
Choosing, obtains file destination.
Optionally, after the S102 in the present embodiment, can also include:
Step 1: the identical file of key value is ranked up according to corresponding inode number, corresponding key value is obtained
File table；
Step 2: when key value is searched, using first file of corresponding file table as file destination.
After the insensitive processing of file system execution capital and small letter, may have multiple files in file system can be regarded
It for same file, when searching this document, searches be possible to return to different files every time, therefore, in order to which stabilization is returned
A file is returned, the identical file of key value is placed in same file table, when finding this document table, by file table
First file is returned as file destination, is improved the stability that file system is searched, is avoided with identical lookup item
The case where different data is returned when part is repeatedly searched.
Optionally, the S103 in the present embodiment may include:
The screening of key value-based algorithm is carried out to all key values according to the search criterion received, obtains target key value；
File destination is got according to the unique identification of target key value.
This optinal plan is intended to provide a kind of method searched according to key value, specifically, key value and corresponding text
There are corresponding relationships, that is, unique identification between part, when getting target key value, so that it may pass through the unique identification
Find corresponding file destination.
To sum up, the present embodiment is by being converted to the unified key value of capital and small letter for the file name of All Files, so that it may so that
The lookup that file destination is carried out with search speed faster algorithm screening, be lifted at capital and small letter it is insensitive in the case where file look into
Speed is looked for, the service efficiency of file system is improved, and the filename of file is not changed but is used in the present embodiment
The key value mutually mapped is searched, and avoids being changed old file name, does not change original title, when progress capital and small letter
The flexibility switched between two kinds of processing modes can be improved with flexible conversion when sensitive process, improve exploitativeness.
A kind of file search device provided by the embodiments of the present application is introduced below, a kind of file described below is looked into
Look for device that can correspond to each other reference with a kind of above-described file search method.
Referring to FIG. 2, Fig. 2 is a kind of structural schematic diagram of file search device provided by the embodiment of the present application.
The apparatus may include:
Processing mode determining module 100, for determining the size of file system according to the configuration parameter in Metadata Service
Write processing mode；
Insensitive processing module 200 is used for when capital and small letter processing mode is insensitive processing, by the file of All Files
Title carries out unified size conversion, obtains multiple key values；
Searching module 300, for carrying out algorithm sieve according to the search criterion received key value corresponding to All Files
Choosing, obtains file destination.
Optionally, which can also include:
Sensitive process module is used for when capital and small letter processing method is sensitive process, according to the search criterion pair received
The filename of All Files carries out algorithm screening, obtains file destination.
Optionally, the insensitive processing module 200 can also include:
File table acquiring unit is obtained for the identical file of key value to be ranked up according to corresponding inode number
The file table of corresponding key value；
File table searches processing unit, for when key value is searched, first file of corresponding file table to be made
For file destination.
Optionally, the searching module 300 may include:
Key value searching unit is obtained for carrying out the screening of key value-based algorithm to all key values according to the search criterion received
To target key value；
File destination acquiring unit, for getting file destination according to the unique identification of target key value.
The embodiment of the present application also provides a kind of server, comprising:
Memory, for storing computer program；
Processor, when for executing computer program the step of the realization such as file search method of above embodiments.
The embodiment of the present application also provides a kind of computer readable storage medium, stores on the computer readable storage medium
There is computer program, the computer program realizes file search method as described above in Example when being executed by processor
Step.
The computer readable storage medium may include: USB flash disk, mobile hard disk, read-only memory (Read-Only
Memory, ROM), random access memory (RandomAccess Memory, RAM), magnetic or disk etc. is various to deposit
Store up the medium of program code.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
?.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond scope of the present application.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
It above can to a kind of file search method provided herein, file search device, server and computer
Storage medium is read to be described in detail.Specific case used herein explains the principle and embodiment of the application
It states, the description of the example is only used to help understand the method for the present application and its core ideas.It should be pointed out that for this skill
For the those of ordinary skill in art field, under the premise of not departing from the application principle, several change can also be carried out to the application
Into and modification, these improvement and modification also fall into the protection scope of the claim of this application.
Claims (10)
1. a kind of file search method characterized by comprising
The capital and small letter processing mode of file system is determined according to the configuration parameter in Metadata Service；
When the capital and small letter processing mode is insensitive processing, the file name of All Files is subjected to unified size conversion,
Obtain multiple key values；
Algorithm screening is carried out according to the search criterion received key value corresponding to All Files, obtains file destination.
2. file search method according to claim 1, which is characterized in that when the capital and small letter processing mode is insensitive
When processing, the file name of All Files is subjected to unified size conversion, after obtaining multiple key values, further includes:
The identical file of key value is ranked up according to corresponding inode number, obtains the file table of corresponding key value；
When the key value is searched, using first file of corresponding file table as the file destination.
3. file search method according to claim 1, which is characterized in that according to the search criterion received to all texts
The corresponding key value of part carries out algorithm screening, obtains file destination, comprising:
The screening of key value-based algorithm is carried out to all key values according to the search criterion received, obtains target key value；
The file destination is got according to the unique identification of the target key value.
4. file search method according to claim 1, which is characterized in that further include:
When the capital and small letter processing method is sensitive process, according to the search criterion received to the filenames of All Files into
The screening of row algorithm, obtains file destination.
5. a kind of file search device characterized by comprising
Processing mode determining module, for determining the capital and small letter processing side of file system according to the configuration parameter in Metadata Service
Formula；
Insensitive processing module is used for when the capital and small letter processing mode is insensitive processing, by the filename of All Files
Title carries out unified size conversion, obtains multiple key values；
Searching module obtains mesh for carrying out algorithm screening according to the search criterion received key value corresponding to All Files
Mark file.
6. file search device according to claim 5, which is characterized in that the insensitive processing module, further includes:
File table acquiring unit is corresponded to for the identical file of key value to be ranked up according to corresponding inode number
The file table of key value；
File table searches processing unit, for when the key value is searched, first file of corresponding file table to be made
For the file destination.
7. file search device according to claim 5, which is characterized in that the searching module, comprising:
Key value searching unit, for carrying out key value-based algorithm sieve to all key values according to the search criterion received
Choosing, obtains target key value；
File destination acquiring unit, for getting the file destination according to the unique identification of the target key value.
8. file search device according to claim 5, which is characterized in that further include:
Sensitive process module is used for when the capital and small letter processing method is sensitive process, according to the search criterion pair received
The filename of All Files carries out algorithm screening, obtains file destination.
9. a kind of server characterized by comprising
Memory, for storing computer program；
Processor realizes such as Claims 1-4 described in any item file search methods when for executing the computer program
The step of.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program is realized when the computer program is executed by processor such as the described in any item file search methods of Claims 1-4
Step.
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| CN201811229873.4A CN109491966A (en) | 2018-10-22 | 2018-10-22 | A kind of file search method and relevant apparatus |
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| CN201811229873.4A CN109491966A (en) | 2018-10-22 | 2018-10-22 | A kind of file search method and relevant apparatus |
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| CN109491966A true CN109491966A (en) | 2019-03-19 |
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| CN111061681A (en) * | 2019-11-15 | 2020-04-24 | 浪潮电子信息产业股份有限公司 | Method and device for partitioning directory based on case insensitivity and storage medium |
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Application publication date: 20190319 |