CN105893433A - File storage method, file access method, file storage device and file access device - Google Patents
File storage method, file access method, file storage device and file access device Download PDFInfo
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- CN105893433A CN105893433A CN201510903537.3A CN201510903537A CN105893433A CN 105893433 A CN105893433 A CN 105893433A CN 201510903537 A CN201510903537 A CN 201510903537A CN 105893433 A CN105893433 A CN 105893433A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
- G06F16/43—Querying
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
- G06F16/41—Indexing; Data structures therefor; Storage structures
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Abstract
The embodiment of the invention provides a file storage method, a file access method, a file storage device and a file access device. Obtained slicing files are grouped according to the time sequence to obtain a plurality of file groups; a primary index file corresponding to each file group is generated according to the file identification information of each slicing file in each file group; each file group is respectively stored; according to the file identification information and the file storage information of each slicing file in each file group, a secondary index file corresponding to each file group is generated; a file obtaining request is obtained; the primary index file is found according to the file identification information of the slicing file obtained by the request; the file group in which the slicing file obtained by the request is located is obtained; according to the file identification information of the slicing file obtained by the request, the secondary index file corresponding to the file group is found, and the file storage information of the slicing file obtained by the request is obtained; and the slicing file obtained by the request is obtained through the downloading according to the file storage information. The methods and the devices provided by the embodiment of the invention have the advantage that the slicing file access efficiency is improved.
Description
Technical field
The present embodiments relate to file processing technology field, particularly relate to a kind of regard file memory method,
Access method and device.
Background technology
In order to support the function such as network direct broadcasting, video retrieval, it is provided that the source server of audio/video flow is permissible
Audio/video flow is cut, it is thus achieved that multiple little audio/video flows, namely section file, carrying out sound
Frequently during streaming namely transmission for section file.
Owing to being split by audio stream, substantial amounts of section file can be obtained, in the prior art, this
A little section files are typically to store according to time order and function order, and searching from a large amount of section files please
Seeking the section file of acquisition, need to search one by one, workload is big, and therefore file access is inefficient.
Summary of the invention
The embodiment of the present invention provides a kind of file memory method, access method and device, existing in order to solve
The technical problem that file access of cutting into slices in technology is inefficient.
The embodiment of the present invention provides a kind of file memory method, including:
The section file that will obtain, is grouped according to time order and function order, it is thus achieved that multiple file grouping；
According to the file identification information of each section file in each file grouping, generate each file grouping
Corresponding one-level index file；
Each file grouping is stored respectively, and according to each section file in each file grouping
File identification information and file storage information, generate the secondary index file that each file grouping is corresponding；
Wherein, described one-level index file is used for when getting file acquisition request, cutting according to acquisition request
The file identification information of sheet file searches corresponding one-level index file, it is thus achieved that the section of described acquisition request
The file grouping at file place；The file identification information of the section file according to described acquisition request searches institute
State the secondary index file that file grouping is corresponding, it is thus achieved that the file storage of the section file of described acquisition request
Information；The section file obtaining described acquisition request is downloaded according to described file storage information.
The embodiment of the present invention provides a kind of file access method, including:
Acquisition file acquisition is asked；
The file identification information of the section file according to acquisition request searches one-level index file, it is thus achieved that described
The file grouping at the section file place of acquisition request；Wherein, described one-level index file is to obtain
Section file, is grouped according to time order and function order, it is thus achieved that multiple file grouping；According to each file
In packet, the file identification information of each section file generates；
The file identification information of the section file according to described acquisition request, searches described file grouping corresponding
Secondary index file, it is thus achieved that described acquisition request section file file storage information；Wherein, institute
State secondary index file for each file grouping to be stored respectively, and according to each in each file grouping
The file identification information of individual section file and file storage information generate；
The section file obtaining described acquisition request is downloaded according to described file storage information.
The embodiment of the present invention provides a kind of file storage device, including:
File grouping module, for the section file that will obtain, is grouped according to time order and function order,
Obtain multiple file grouping；
One-level index generation module, for according to the file identification of each section file in each file grouping
Information, generates the one-level index file that each file grouping is corresponding；
File storage module, for storing each file grouping respectively；
Secondary index generation module, for according to the file identification of each section file in each file grouping
Information and file storage information, generate the secondary index file that each file grouping is corresponding；Wherein, institute
State one-level index file for when receiving file acquisition request, according to the section file of acquisition request
File identification information searches corresponding one-level index file, it is thus achieved that the section file place of described acquisition request
File grouping；The file identification information of the section file according to described acquisition request is searched described file and is divided
The secondary index file that group is corresponding, it is thus achieved that the file storage information of the section file of described acquisition request；Root
The section file obtaining described acquisition request is downloaded according to described file storage information.
The embodiment of the present invention provides a kind of file access device, including:
Acquisition request module, is used for obtaining file acquisition request；
File grouping acquisition module, the file identification information for the section file according to acquisition request is searched
One-level index file, it is thus achieved that the file grouping at the section file place of described acquisition request；Wherein, described
One-level index file is the section file that will obtain, and is grouped according to time order and function order, it is thus achieved that multiple
File grouping；Generate according to the file identification information of each section file in each file grouping；
Storage data obtaining module, for the file identification information of the section file according to described acquisition request,
Search the secondary index file that described file grouping is corresponding, it is thus achieved that the literary composition of the section file of described acquisition request
Part storage information；Wherein, described secondary index file for each file grouping is stored respectively, and
Generate according to file identification information and the file storage information of each section file in each file grouping
's；
File download module, obtains cutting of described acquisition request for downloading according to described file storage information
Sheet file.
File memory method, access method and the device that the embodiment of the present invention provides, by file of cutting into slices
Packet stores, and is that each group of file grouping generates one-level index file and secondary index file,
Utilize described one-level index file and secondary index file can realize looking into of section file easily and fast
Look for, thus improve the access efficiency of section file.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that under,
Accompanying drawing during face describes is some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is file memory method embodiment flow chart of the present invention；
Fig. 2 is file access method embodiment flow chart of the present invention；
Fig. 3 is file storage device example structure schematic diagram of the present invention；
Fig. 4 is file access device example structure schematic diagram of the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with this
Accompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
In an actual application of the present invention, it is mainly used in based on HLS (HTTP Live
Streaming, real time streaming) protocol realization audio, video data in the storage of file and access,
HLS is a kind of Streaming transfer protocol based on HTTP, mainly include TS (Transport Stream,
Transmission stream) file and the description file of TS file, i.e. M3U8 file, it is by whole audio frequency and video
Stream cuts into the TS file can downloaded by HTTP, and generates the M3U8 file of TS file, client
According to M3U8 file, i.e. can obtain TS file, to realize the broadcasting of audio/video flow, TS file is also
I.e. refer to a kind of section file in the embodiment of the present invention.
Owing to being split by audio/video flow, can obtain substantial amounts of section file, these section files are typically to press
Storing according to time order and function order, therefore searching work amount is relatively big, and file access is inefficient.
In order to solve this technical problem, in embodiments of the present invention, by obtain section file according to time
Between sequencing be grouped, it is thus achieved that multiple file grouping；According to each section literary composition in each file grouping
The file identification information of part, can generate the one-level index file that each file grouping is corresponding；Each file
Packet stores respectively, it is possible to according to the file identification letter of each section file in each file grouping
Breath and file storage information, generate the secondary index file that each file grouping is corresponding；Thus carry out literary composition
When part is searched, search corresponding one-level index literary composition according to the file identification information of the section file of acquisition request
Part, it is possible to obtain the file grouping at the section file place of described acquisition request；According to described acquisition request
The file identification information of section file search secondary index file corresponding to described file grouping, it is thus achieved that institute
State the file storage information of the section file of acquisition request；I.e. can download according to described file storage information
Obtain the section file of described acquisition request.Achieved by one-level index file and secondary index file
Section file is quickly searched, thus improves file access efficiency.
In current a kind of netcast framework, storage and the access of a large amount of section files usually occur in
Relay Server, the section file that source server provides first transmits to Relay Servers such as Edge Servers,
Being transmitted to client by Relay Server, Relay Server can store substantial amounts of section file, therefore again
In an actual application, technical solution of the present invention can be applied particularly in Relay Server.Certainly,
This is the most specifically limited by the present invention, can apply to need appointing that a large amount of section files store
In what equipment.
Below in conjunction with accompanying drawing, technical solution of the present invention is described in detail.
The flow chart of one embodiment of a kind of file memory method that Fig. 1 provides for the embodiment of the present invention, should
Method can include following step:
101: the section file that will obtain, it is grouped according to time order and function order, it is thus achieved that multiple files divide
Group.
This acquisition section file can be the file of cutting into slices in a large number that Relay Server obtains from source server, when
So may also mean that source server cutting obtains file of cutting into slices in a large number.Therefore service at Relay Server or source
Device all can carry out file storage according to file storage scheme of the present invention.
First, section file is grouped according to time order and function order, it is thus achieved that multiple file grouping.
In each file grouping, can comprise the section file of predetermined number, this predetermined number is permissible
It is set according to practical situation.
In an actual application, this section file i.e. may refer to TS file.
102: according to the file identification information of each section file in each file grouping, generate each file
The one-level index file that packet is corresponding.
After determining file grouping, i.e. can generate the one-level index file of corresponding each file grouping,
This one-level index file at least includes the file identification information of each section file in this document packet, when
So, it is also possible to include each information such as the section time span of file and file size.
The corresponding one-level index file of each file grouping, distinguishes for convenience, indexes in this one-level
File can also include the group character of the file grouping of its correspondence.
103: each file grouping is stored respectively, and according to each section literary composition in each file grouping
The file identification information of part and file storage information, generate the secondary index literary composition that each file grouping is corresponding
Part.
Each file grouping stores respectively, i.e. can obtain each section in each file grouping
The file storage information of file, this document storage information can be the storage address of section file, storage position
The information such as put.
Thus store information and file identification according to the file of each section file of each file grouping
Information, can generate the secondary index file of correspondence.This secondary index file i.e. includes the file of its correspondence
The file storage information of each section file of packet and file identification information.
Distinguishing for convenience, this secondary index file can also include the packet mark of the file grouping of its correspondence
Know.
Thus each file grouping a corresponding one-level index file and secondary index file i.e. respectively.
When getting file acquisition request, can first look for one-level index file, this document obtains please
The file identification information of the section file that the request of carrying in asking obtains, from the section file according to acquisition request
File identification information search corresponding one-level index file, i.e. can obtain the section of described acquisition request
The file grouping at file place.
The secondary index file that the file grouping at the section file place of search request acquisition is corresponding the most again；
The file identification information of the section file according to described acquisition request searches two grades that described file grouping is corresponding
Index file, i.e. can obtain the file storage information of the section file of described acquisition request；Thus according to
Described file storage information downloads the section file of described acquisition request.
Wherein, this document obtains request for client transmission.
The embodiment of the present invention, a large amount of section file grouping store, and are that the generation of each file grouping is right
The one-level index file answered and secondary index file, by one-level index file and secondary index file,
Facilitate the lookup of section file, thus improve the search efficiency of section file.
The all corresponding one-level index file of each file grouping and secondary index file, one-level index file
And secondary index file can store respectively in respective file packet, thus when carrying out ff,
File identification information in file identification information according to acquisition request and each one-level index file is permissible
Find the one-level index file of correspondence, and then the file grouping that this one-level index file is corresponding can be found.
One-level index file and secondary index file can store respectively with each file grouping, for
Convenience distinguishes corresponding relation, can be each file grouping arranges group character, one-level index file
And secondary index file can include group character, thus according to the group character of one-level index file
File grouping can be found, secondary index file can be found according to the group character of file grouping, and then
I.e. can realize the lookup of section file.
In a kind of possible implementation, described one-level index file includes dividing of described file grouping
The file identification information of each section file in group mark and described file grouping, described one-level index literary composition
Part is for when receiving file acquisition request, according to the file identification information of the section file of acquisition request
Search corresponding one-level index file, obtain according to the group character in corresponding one-level index file described
The file grouping at the section file place of acquisition request.
Wherein, the group character of file grouping can have multiple possible set-up mode, as long as being capable of
The differentiation of different file grouping, as a kind of possible implementation, due to each file of cutting into slices
Having temporal information, temporal information includes the data of a section file and rises between sowing time and the end time,
In each group of file grouping, each section file arranges according to time order and function order, therefore can basis
In each file grouping each section file rise between sowing time and the end time, determine described file grouping
Corresponding rises between sowing time and the end time, as the group character of described file grouping.
File identification information is to may be used for distinguishing the identification information of different section file, such as can be with often
One section file rise between sowing time and the end time is as file identification information.
In the embodiment of the present invention, secondary index file includes each section literary composition in the file grouping of its correspondence
The file identification information of part and file storage information, this document storage information, as a kind of possible reality
Existing mode, can specifically refer to file storage side-play amount, owing to each section file is suitable according to time order and function
Sequence stores, the literary composition of each file of cutting into slices before therefore document misregistration amount may refer to current slice file
Part length sum；
Therefore, described according to each section file identification information of file and file in each file grouping
Storage information, the secondary index file generating each file grouping corresponding includes:
According to the file size of each section file in each file grouping, determine that described section file is corresponding
File storage side-play amount, described file storage side-play amount be the file of respectively cutting into slices before current slice file
File size sum；
Offset according to file identification information and the file storage of each section file in each file grouping
Amount, generates the secondary index file that each file grouping is corresponding.
Now, described secondary index file can be specifically for the file of the section file according to acquisition request
Identification information searches secondary index file, it is thus achieved that the file storage skew of the section file of described acquisition request
Amount；The file size of the section file according to acquisition request and described file storage side-play amount, from described
File storage side-play amount corresponding position is downloaded and is obtained the section file that described file size is corresponding.
Such as one file grouping includes 4 section files, and the file size of first section file is
3MB (MByte, Mbytes), the file size of second section file are 4MB, the 3rd section
The file size of file be 3MB and the 4th section file file size be 2MB, cut for first
Sheet file, second section file, the 3rd section file, the 4th section file store successively.
Then the file storage side-play amount of the first section file is 0MB, and the file storage of the second section file is partially
Shifting amount is 3MB, the file storage side-play amount of the 3rd section file is 7MB, the 4th section file
File storage side-play amount is 9MB.
Assume acquisition request section file file size be 3MB, according to the section file of acquisition request
File identification information, can search obtain file storage side-play amount be 7MB, then from file storage skew
Amount 7MB corresponding position, downloads the section file obtaining 3MB, is the 3rd section file.
The flow chart of one embodiment of a kind of file access method that Fig. 2 provides for the embodiment of the present invention, should
Method can include following step:
201: obtain file acquisition request.
202: search one-level index file according to the file identification information of the section file of acquisition request, it is thus achieved that
The file grouping at the section file place of described acquisition request.
Wherein, described one-level index file is the section file that will obtain, and carries out according to time order and function order
Packet, it is thus achieved that multiple file grouping；According to the file identification letter of each section file in each file grouping
Breath generates.
203: according to the file identification information of the section file of described acquisition request, search described file grouping
Corresponding secondary index file, it is thus achieved that the file storage information of the section file of described acquisition request.
Wherein, described secondary index file is for store each file grouping respectively, and according to each
In file grouping, file identification information and the file of each section file store what information generated；
204: download the section file obtaining described acquisition request according to described file storage information.
Wherein, the generation of one-level index file and secondary index file may refer to institute in above-described embodiment
State, do not repeat them here.
Wherein, the file storage information in secondary index file can be specially file storage side-play amount, should
The acquisition of file storage side-play amount may refer to, described in above-described embodiment, not repeat them here.Thus have
Body is the section file downloaded from file storage side-play amount corresponding position and obtain acquisition request.
When file storage information in secondary index file is file storage side-play amount, file acquisition is asked
In can also carry file size, therefore as another embodiment, according under described file storage information
The section file carrying the described acquisition request of acquisition can be specifically:
The file size of the section file according to described acquisition request and described file storage side-play amount, from
Described file storage side-play amount corresponding position is downloaded and is obtained the section file that described file size is corresponding.
In the embodiment of the present invention, substantial amounts of section file stores according to time order and function sequential packet, each
File grouping correspondence one-level index file and secondary index file, one-level index file includes that it is corresponding
File grouping in each section file file identification information, secondary index file includes its correspondence
In file grouping, file identification information and the file of each section file store information, and each file divides
Group can have group character, can also store the packet of the file grouping of its correspondence in one-level index file
Mark, can also include the group character of the file grouping of its correspondence in secondary index file.
Thus the file identification information in asking according to file acquisition, the one-level index literary composition of correspondence can be searched
Part, and then may determine that the file grouping that one-level index file is corresponding, namely the section file of acquisition request
The file grouping at place, and then the file grouping pair at the section file place of this acquisition request can be found
The secondary index file answered, from secondary index file, according to the files-designated of the section file of acquisition request
Knowledge information, can store information with the file that locating file identification information is corresponding, thus store according to this document
Information i.e. can download the section file obtaining acquisition request.
The embodiment of the present invention, by section file carries out packet storage, and is respectively provided with each file and divides
The one-level index file of group and secondary index file, can facilitate the lookup of section file, thus improve
The access efficiency of section file.
The structural representation of one embodiment of a kind of file storage device that Fig. 3 provides for the embodiment of the present invention
Scheming, device described in the embodiment of the present invention can apply in any equipment needing to carry out section file storage,
This device may include that
File grouping module 301, for the section file that will obtain, is carried out point according to time order and function order
Group, it is thus achieved that multiple file grouping.
In each file grouping, can comprise the section file of predetermined number, this predetermined number is permissible
It is set according to practical situation.
In an actual application, this section file i.e. may refer to TS file.
One-level index generation module 302, for according to the file of each section file in each file grouping
Identification information, generates the one-level index file that each file grouping is corresponding.
The corresponding one-level index file of each file grouping, distinguishes for convenience, indexes in this one-level
File can also include the group character of the file grouping of its correspondence.
File storage module 303, for storing each file grouping respectively.
Secondary index generation module 304, for according to the file of each section file in each file grouping
Identification information and file storage information, generate the secondary index file that each file grouping is corresponding.
Each file grouping stores respectively, i.e. can obtain each section in each file grouping
The file storage information of file, this document storage information can be the storage address of section file, storage position
The information such as put.
Thus store information and file identification according to the file of each section file of each file grouping
Information, can generate the secondary index file of correspondence.This secondary index file i.e. includes the file of its correspondence
The file storage information of each section file of packet and file identification information.
Distinguishing for convenience, this secondary index file can also include the packet mark of the file grouping of its correspondence
Know.Thus each file grouping a corresponding one-level index file and secondary index file i.e. respectively.
When receiving file acquisition request, can first look for one-level index file, this document obtains please
The file identification information of the section file that the request of carrying in asking obtains, from the section file according to acquisition request
File identification information search corresponding one-level index file, i.e. can obtain the section of described acquisition request
The file grouping at file place.
Search the secondary index file that this document packet is corresponding the most again；Section according to described acquisition request
The file identification information of file searches the secondary index file that described file grouping is corresponding, i.e. can obtain institute
State the file storage information of the section file of acquisition request；Thus download institute according to described file storage information
State the section file of acquisition request.
The embodiment of the present invention, a large amount of section file grouping store, and are that the generation of each file grouping is right
The one-level index file answered and secondary index file, by one-level index file and secondary index file,
Facilitate the lookup of section file, thus improve the search efficiency of section file.
The all corresponding one-level index file of each file grouping and secondary index file, one-level index file
And secondary index file can store respectively in respective file packet, thus when carrying out ff,
File identification information in file identification information according to acquisition request and each one-level index file is permissible
Find the one-level index file of correspondence, and then the file grouping that this one-level index file is corresponding can be found.
One-level index file and secondary index file can store respectively with each file grouping, for
Convenience distinguishes corresponding relation, can be each file grouping arranges group character, one-level index file
And secondary index file can include group character, thus according to the group character of one-level index file
File grouping can be found, secondary index file can be found according to the group character of file grouping, and then
I.e. can realize the lookup of section file.
In a kind of possible implementation, described one-level index file includes dividing of described file grouping
The file identification information of each section file in group mark and described file grouping, described one-level index literary composition
Part is for when receiving file acquisition request, according to the file identification information of the section file of acquisition request
Search corresponding one-level index file, obtain according to the group character in corresponding one-level index file described
The file grouping at the section file place of acquisition request.
Wherein, the group character of file grouping can have multiple possible set-up mode, as long as being capable of
The differentiation of different file grouping, as a kind of possible implementation, due to each file of cutting into slices
Having temporal information, temporal information includes the data of a section file and rises between sowing time and the end time,
In each group of file grouping, each section file arranges according to time order and function order, therefore one-level index
Module 302 can be specifically for:
According in each file grouping each section file rise between sowing time and the end time, determine described
What file grouping was corresponding rises between sowing time and the end time, as the group character of described file grouping.
The file of each section file in group character according to each file grouping and each file grouping
Identification information, generates the one-level index file that each file grouping is corresponding.
In the embodiment of the present invention, secondary index file includes each section literary composition in the file grouping of its correspondence
The file identification information of part and file storage information, this document storage information, as a kind of possible reality
Existing mode, can specifically refer to file storage side-play amount, owing to each section file is suitable according to time order and function
Sequence stores, the literary composition of each file of cutting into slices before therefore document misregistration amount may refer to current slice file
Part length sum；
Accordingly, as another embodiment, described secondary index generation module 304 can be specifically for:
According to the file size of each section file in each file grouping, determine that described section file is corresponding
File storage side-play amount, described file storage side-play amount be the file of respectively cutting into slices before current slice file
File size sum；
Offset according to file identification information and the file storage of each section file in each file grouping
Amount, generates the secondary index file that each file grouping is corresponding.
Described secondary index file is looked into specifically for the file identification information of the section file according to acquisition request
Look for secondary index file, it is thus achieved that the file storage side-play amount of the section file of described acquisition request；According to asking
Ask file size and the described file storage side-play amount of the section file of acquisition, from the storage of described file partially
Shifting amount corresponding position is downloaded and is obtained the section file that described file size is corresponding.
The structural representation of one embodiment of a kind of file access device that Fig. 4 provides for the embodiment of the present invention
Figure, this device may include that
Acquisition request module 401, is used for obtaining file acquisition request；
File grouping acquisition module 402, for the file identification information of the section file according to acquisition request
Search one-level index file, it is thus achieved that the file grouping at the section file place of described acquisition request；Wherein,
Described one-level index file is the section file that will obtain, and is grouped according to time order and function order, it is thus achieved that
Multiple file grouping；Generate according to the file identification information of each section file in each file grouping；
Storage data obtaining module 403, for the file identification of the section file according to described acquisition request
Information, searches the secondary index file that described file grouping is corresponding, it is thus achieved that the section literary composition of described acquisition request
The file storage information of part；Wherein, described secondary index file is for deposit each file grouping respectively
Storage, and store information according to file identification information and the file of each section file in each file grouping
Generate；
File download module 404, obtains described acquisition request for downloading according to described file storage information
Section file.
Wherein, the generation of one-level index file and secondary index file may refer to institute in above-described embodiment
State, do not repeat them here.
Wherein, the file storage information in secondary index file can be specially file storage side-play amount, should
The acquisition of file storage side-play amount may refer to, described in above-described embodiment, not repeat them here.Thus have
Body is the section file downloaded from file storage side-play amount corresponding position and obtain acquisition request.
When file storage information in secondary index file is file storage side-play amount, file acquisition is asked
In can also carry file size, therefore as another embodiment, described file download module 304 can
With specifically for:
The file size of the section file according to described acquisition request and described file storage side-play amount, from
Described file storage side-play amount corresponding position is downloaded and is obtained the section file that described file size is corresponding.
Wherein, when one-level index file includes group character, file grouping acquisition module 402, permissible
File identification information specifically for the section file according to acquisition request searches one-level index file, according to
The corresponding group character in one-level index file obtains the file at the section file place of described acquisition request
Packet.
In the embodiment of the present invention, substantial amounts of section file stores according to time order and function sequential packet, each
File grouping correspondence one-level index file and secondary index file, one-level index file includes that it is corresponding
File grouping in each section file file identification information, secondary index file includes its correspondence
In file grouping, file identification information and the file of each section file store information, and each file divides
Group can have group character, can also store the packet of the file grouping of its correspondence in one-level index file
Mark, can also include the group character of the file grouping of its correspondence in secondary index file.
Thus the file identification information in asking according to file acquisition, the one-level index literary composition of correspondence can be searched
Part, and then may determine that the file grouping that one-level index file is corresponding, namely the section file of acquisition request
The file grouping at place, and then the file grouping pair at the section file place of this acquisition request can be found
The secondary index file answered, from secondary index file, according to the files-designated of the section file of acquisition request
Knowledge information, can store information with the file that locating file identification information is corresponding, thus store according to this document
Information i.e. can download the section file obtaining acquisition request.
The embodiment of the present invention, by section file carries out packet storage, and is respectively provided with each file and divides
The one-level index file of group and secondary index file, can facilitate the lookup of section file, thus improve
The access efficiency of section file.
Device embodiment described above is only schematically, wherein said illustrates as separating component
Unit can be or may not be physically separate, the parts shown as unit can be or
Person may not be physical location, i.e. may be located at a place, or can also be distributed to multiple network
On unit.Some or all of module therein can be selected according to the actual needs to realize the present embodiment
The purpose of scheme.Those of ordinary skill in the art are not in the case of paying performing creative labour, the most permissible
Understand and implement.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive each reality
The mode of executing can add the mode of required general hardware platform by software and realize, naturally it is also possible to by firmly
Part.Based on such understanding, the portion that prior art is contributed by technique scheme the most in other words
Dividing and can embody with the form of software product, this computer software product can be stored in computer can
Read in storage medium, such as ROM/RAM, magnetic disc, CD etc., including some instructions with so that one
Computer equipment (can be personal computer, server, or the network equipment etc.) performs each to be implemented
The method described in some part of example or embodiment.
Last it is noted that above example is only in order to illustrate technical scheme, rather than to it
Limit；Although the present invention being described in detail with reference to previous embodiment, the ordinary skill of this area
Personnel it is understood that the technical scheme described in foregoing embodiments still can be modified by it, or
Person carries out equivalent to wherein portion of techniques feature；And these amendments or replacement, do not make corresponding skill
The essence of art scheme departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (12)
1. a file memory method, it is characterised in that including:
The section file that will obtain, is grouped according to time order and function order, it is thus achieved that multiple file grouping；
According to the file identification information of each section file in each file grouping, generate each file grouping
Corresponding one-level index file；
Each file grouping is stored respectively, and according to each section file in each file grouping
File identification information and file storage information, generate the secondary index file that each file grouping is corresponding；
Wherein, described one-level index file is used for when getting file acquisition request, cutting according to acquisition request
The file identification information of sheet file searches corresponding one-level index file, it is thus achieved that the section of described acquisition request
The file grouping at file place；The file identification information of the section file according to described acquisition request searches institute
State the secondary index file that file grouping is corresponding, it is thus achieved that the file storage of the section file of described acquisition request
Information；The section file obtaining described acquisition request is downloaded according to described file storage information.
Method the most according to claim 1, it is characterised in that described one-level index file includes
The file identification letter of each section file in the group character of described file grouping and described file grouping
Breath, described one-level index file is for when receiving file acquisition request, according to the section of acquisition request
The file identification information of file searches corresponding one-level index file, according in corresponding one-level index file
Group character obtain described acquisition request section file place file grouping.
Method the most according to claim 1, it is characterised in that described according in each file grouping
The file identification information of each section file and file storage information, generate each file grouping corresponding
Secondary index file includes:
According to the file size of each section file in each file grouping, determine that described section file is corresponding
File storage side-play amount, described file storage side-play amount be the file of respectively cutting into slices before current slice file
File size sum；
Offset according to file identification information and the file storage of each section file in each file grouping
Amount, generates the secondary index file that each file grouping is corresponding, and described secondary index file is specifically for root
Secondary index file is searched, it is thus achieved that described request obtains according to the file identification information of the section file of acquisition request
The file storage side-play amount of the section file taken；According to acquisition request section file file size and
Described file storage side-play amount, downloads from described file storage side-play amount corresponding position and obtains described file
The section file that length is corresponding.
Method the most according to claim 2, it is characterised in that described according in each file grouping
The file identification information of each section file, generates the one-level index file that each file grouping is corresponding；
According in each file grouping each section file rise between sowing time and the end time, determine described
What file grouping was corresponding rises between sowing time and the end time, as the group character of described file grouping；
The file of each section file in group character according to each file grouping and each file grouping
Identification information, generates the one-level index file that each file grouping is corresponding.
5. a file access method, it is characterised in that including:
Acquisition file acquisition is asked；
The file identification information of the section file according to acquisition request searches one-level index file, it is thus achieved that described
The file grouping at the section file place of acquisition request；Wherein, described one-level index file is to obtain
Section file, is grouped according to time order and function order, it is thus achieved that multiple file grouping；According to each file
In packet, the file identification information of each section file generates；
The file identification information of the section file according to described acquisition request, searches described file grouping corresponding
Secondary index file, it is thus achieved that described acquisition request section file file storage information；Wherein, institute
State secondary index file for each file grouping to be stored respectively, and according to each in each file grouping
The file identification information of individual section file and file storage information generate；
The section file obtaining described acquisition request is downloaded according to described file storage information.
Method the most according to claim 5, it is characterised in that file in described secondary index file
The file storage information that identification information is corresponding is that file stores side-play amount, and described file storage side-play amount is literary composition
The file size sum of each section file before current slice file in part packet；
The described section file according to the described file storage information download described acquisition request of acquisition includes:
The file size of the section file according to described acquisition request and described file storage side-play amount, from
Described file storage side-play amount corresponding position is downloaded and is obtained the section file that described file size is corresponding.
7. a file storage device, it is characterised in that including:
File grouping module, for the section file that will obtain, is grouped according to time order and function order,
Obtain multiple file grouping；
One-level index generation module, for according to the file identification of each section file in each file grouping
Information, generates the one-level index file that each file grouping is corresponding；
File storage module, for storing each file grouping respectively；
Secondary index generation module, for according to the file identification of each section file in each file grouping
Information and file storage information, generate the secondary index file that each file grouping is corresponding；Wherein, institute
State one-level index file for when receiving file acquisition request, according to the section file of acquisition request
File identification information searches corresponding one-level index file, it is thus achieved that the section file place of described acquisition request
File grouping；The file identification information of the section file according to described acquisition request is searched described file and is divided
The secondary index file that group is corresponding, it is thus achieved that the file storage information of the section file of described acquisition request；Root
The section file obtaining described acquisition request is downloaded according to described file storage information.
Device the most according to claim 7, it is characterised in that described one-level index file includes
The file identification letter of each section file in the group character of described file grouping and described file grouping
Breath, described one-level index file is for when receiving file acquisition request, according to the section of acquisition request
The file identification information of file searches corresponding one-level index file, according in corresponding one-level index file
Group character obtain described acquisition request section file place file grouping.
Device the most according to claim 7, it is characterised in that described secondary index generation module has
Body is used for:
According to the file size of each section file in each file grouping, determine that described section file is corresponding
File storage side-play amount, described file storage side-play amount be the file of respectively cutting into slices before current slice file
File size sum；
Offset according to file identification information and the file storage of each section file in each file grouping
Amount, generates the secondary index file that each file grouping is corresponding, and described secondary index file is specifically for root
Secondary index file is searched, it is thus achieved that described request obtains according to the file identification information of the section file of acquisition request
The file storage side-play amount of the section file taken；According to acquisition request section file file size and
Described file storage side-play amount, downloads from described file storage side-play amount corresponding position and obtains described file
The section file that length is corresponding.
Device the most according to claim 8, it is characterised in that described one-level index file module
Specifically for:
According in each file grouping each section file rise between sowing time and the end time, determine described
What file grouping was corresponding rises between sowing time and the end time, as the group character of described file grouping；
The file of each section file in group character according to each file grouping and each file grouping
Identification information, generates the one-level index file that each file grouping is corresponding.
11. 1 kinds of file access devices, it is characterised in that including:
Acquisition request module, is used for obtaining file acquisition request；
File grouping acquisition module, the file identification information for the section file according to acquisition request is searched
One-level index file, it is thus achieved that the file grouping at the section file place of described acquisition request；Wherein, described
One-level index file is the section file that will obtain, and is grouped according to time order and function order, it is thus achieved that multiple
File grouping；Generate according to the file identification information of each section file in each file grouping；
Storage data obtaining module, for the file identification information of the section file according to described acquisition request,
Search the secondary index file that described file grouping is corresponding, it is thus achieved that the literary composition of the section file of described acquisition request
Part storage information；Wherein, described secondary index file for each file grouping is stored respectively, and
Generate according to file identification information and the file storage information of each section file in each file grouping
's；
File download module, obtains cutting of described acquisition request for downloading according to described file storage information
Sheet file.
12. devices according to claim 11, it is characterised in that described secondary index file Chinese
The file storage information that part identification information is corresponding is that file stores side-play amount, and described file storage side-play amount is
In file grouping before current slice file each section file file size sum；
Described file download module specifically for:
The file size of the section file according to described acquisition request and described file storage side-play amount, from
Described file storage side-play amount corresponding position is downloaded and is obtained the section file that described file size is corresponding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903537.3A CN105893433A (en) | 2015-12-09 | 2015-12-09 | File storage method, file access method, file storage device and file access device |
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| CN201510903537.3A CN105893433A (en) | 2015-12-09 | 2015-12-09 | File storage method, file access method, file storage device and file access device |
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| CN105893433A true CN105893433A (en) | 2016-08-24 |
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| CN201510903537.3A Pending CN105893433A (en) | 2015-12-09 | 2015-12-09 | File storage method, file access method, file storage device and file access device |
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| CN106953892A (en) * | 2017-02-14 | 2017-07-14 | 北京时间股份有限公司 | A kind of method for obtaining file, apparatus and system |
| CN108235151A (en) * | 2017-12-29 | 2018-06-29 | 北京奇虎科技有限公司 | A kind of method and apparatus of net cast |
| CN109104447A (en) * | 2017-06-20 | 2018-12-28 | 杭州海康威视数字技术股份有限公司 | A kind of vehicle-mounted data reading/writing method and device |
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| CN116954745A (en) * | 2023-05-25 | 2023-10-27 | 成都融见软件科技有限公司 | Target file partial loading system |
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| CN106953892A (en) * | 2017-02-14 | 2017-07-14 | 北京时间股份有限公司 | A kind of method for obtaining file, apparatus and system |
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| CN115905122A (en) * | 2023-02-20 | 2023-04-04 | 成都九洲电子信息***股份有限公司 | Flight track data storage and retrieval system, method and storage medium |
| CN116954745A (en) * | 2023-05-25 | 2023-10-27 | 成都融见软件科技有限公司 | Target file partial loading system |
| CN116954745B (en) * | 2023-05-25 | 2024-02-09 | 成都融见软件科技有限公司 | Target file partial loading system |
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Application publication date: 20160824 |