CN104144151B - Content distributing network dispatching method and system and native object management server - Google Patents
Content distributing network dispatching method and system and native object management server Download PDFInfo
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Abstract
The invention discloses a kind of content distributing network dispatching method and system and native object management server, it is related to triple play technology field.The present invention sets up an object factory file set for same content, when different types of terminals accesses same content, although the video file of actual access is different, but the content identification accessed in URL is the same, all point to same object factory file set, therefore, the application need to only safeguard the content of object factory file set, without maintenance entity file association relation；And, same content need to only be injected once, if the corresponding subfile of the type terminal is can not find in object factory file set, corresponding subfile can be obtained by the original content file transcoding of injection, it is achieved thereby that same content is shared, the number of times for pulling up stream is reduced, the network bandwidth is saved.
Description
Technical field
The present invention relates to triple play technology field, more particularly to a kind of content distributing network dispatching method and system and
Native object management server.
Background technology
Content distributing network（Content Delivery Network, abbreviation CDN）, by existing IP bearer networks
Increase by one layer of new network architecture, the contents such as video, audio, Web page are sent to the network " edge " closest to user, made
User can obtain required content nearby, so as to optimize network traffic condition, improve the response speed that user accesses website.
CDN can be solved because backbone bandwidth is small, user's visit capacity is big, the user caused by the unequal reason of network point distribution accesses
The problem of response speed is slow.
The object of existing CDN system scheduling is entity file one by one, and user's request is also entity file one by one, whole
Individual CDN frameworks are to be designed for the transmission of entity file with distribution.For example, user is seen by set top box《Bullet is allowed to fly》This program
When, corresponding video file is：Rangzidanfei.TS, its content ID and rangzidanfei.TS are corresponded, and user
Seen by mobile phone《Bullet is allowed to fly》, corresponding video file is：Rangzidanfei.mp4, its content ID with
Rangzidanfei.mp4 is corresponded, therefore, and the content ID and entity file that different terminals are accessed are different.
In the variation of current media terminal, business variation, in the case that relevance is increasingly stronger, based on entity file
Content scheduling seems more and more painstaking：
In multi-screen application, if a user is watched by IPTV《Bullet is allowed to fly》, when user sees half,
He wishes to continue to watch the piece by mobile phone.For existing CDN, user pass through IPTV and mobile phone access really 2
Individual different entity file, their content ID is different.In order to realize use above scene, it is necessary to by Content Management System
2 entity files are associated, and safeguard that these incidence relations are extremely complex.
Also, due to the multiple different entity files of same content correspondence, it is therefore desirable to carried out in content distributing network
Multiple injection；
Simultaneously as the multiple different entity files of same content correspondence, edge service node can not share same content,
When miss, it is both needed to pull up stream, consumes more bandwidth.
The content of the invention
A technical problem to be solved of the embodiment of the present invention is：Propose a kind of content distributing network dispatching method and be
System and native object management server, are brought with solving the content scheduling based on entity file in existing content distributing network
Entity file incidence relation safeguard the problems such as complicated, same content is repeatedly injected, can not share same content.
According to an aspect of the invention, there is provided a kind of content distributing network CDN dispatching methods, including：Receive user
The access request of submission, the access request includes uniform resource position mark URL address, and the URL addresses include protocol type, URL
Prefix, domain and object factory file set mark ODFGID；ODFGID lookup objects are identified according to object factory file set to retouch
File set ODFG is stated, and according to object factory file set ODFG description, searches corresponding object factory file ODF；
The corresponding subfile in the domain is searched in object factory file ODF；If there is the corresponding subfile in the domain, the son is sent to user
File；If there is no the corresponding subfile in the domain, content object file OOF is searched, content object file OOF is content pipe
The original content file that reason server injects on same content；The domain is generated according to content object file OOF transcodings corresponding
Subfile, and send the subfile to user.
According to another aspect of the present invention there is provided a kind of native object management server LOMS, including：Access request
Receiving unit, the user access request for receiving global service load-balancing device GSLB scheduling, access request includes
Uniform resource position mark URL address, the URL addresses include protocol type, URL prefix, domain and object factory file set mark
ODFGID, object factory file set searching unit is retouched for identifying ODFGID lookup objects according to object factory file set
State file set ODFG；Object factory ff unit, for the description according to object factory file set ODFG, searches phase
The object factory file ODF answered；Subfile searching unit, for searching the corresponding Ziwen in the domain in object factory file ODF
Part；Subfile transcoding generation unit, if not finding the corresponding subfile in the domain for the subfile searching unit, is searched
Content object file OOF, content object file OOF are the original contents texts that content management server injects on same content
Part；The corresponding subfile in the domain is generated according to content object file OOF transcodings；Subfile transmitting element, for by the Ziwen
The corresponding subfile in the domain that part searching unit is found is sent to user, or, the subfile transcoding generation unit is turned
The subfile of code generation is sent to user.
System is dispatched there is provided a kind of content distributing network CDN according to a further aspect of the invention, including：Overall situation clothes
Be engaged in load-balancing device GSLB and native object management server LOMS；Global service load-balancing device GSLB, for receiving
The access request that user submits, and the access request of user is dispatched to native object management server LOMS, wherein, the access
Request includes uniform resource position mark URL address, and the URL addresses include protocol type, URL prefix, domain and object factory file
Set identification ODFGID；Native object management server LOMS, is searched for identifying ODFGID according to object factory file set
Object factory file set ODFG, and according to object factory file set ODFG description, search corresponding object factory file
ODF；The corresponding subfile in the domain is searched in object factory file ODF；If there is the corresponding subfile in the domain, sent out to user
Give the subfile；If there is no the corresponding subfile in the domain, content object file OOF is searched, content object file OOF is
The original content file that content management server injects on same content；The domain is generated according to content object file OOF transcodings
Corresponding subfile, and send the subfile to user.
The present invention sets up an object factory file set for same content, and different types of terminals accesses same content
When, although the video file of actual access is different, but the content identification accessed in URL is the same, all points to same object and retouches
File set is stated, therefore, the application need to only safeguard the content of object factory file set, closed without maintenance entity file association
System；Also, same content need to only be injected once, if searched in object factory file set corresponding less than the type terminal
During subfile, corresponding subfile can be obtained by the original content file transcoding of injection, it is achieved thereby that same content
It is shared, the number of times for pulling up stream is reduced, the network bandwidth is saved.
By referring to the drawings to the detailed description of the exemplary embodiment of the present invention, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the networking schematic diagram of present invention distribution network.
Fig. 2 is the structural representation that an example of the present invention sex object describes file set.
Fig. 3 is the schematic flow sheet of CDN dispatching methods one embodiment of the present invention.
Fig. 4 is the structural representation that CDN of the present invention dispatches system one embodiment.
Fig. 5 is the structural representation of native object management server one embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any limitation.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Fig. 1 is the networking schematic diagram of present invention distribution network.
As shown in figure 1, typical content distributing network（Abbreviation CDN）Disposed according to the structure of bearer network, be a kind of
Distributed frame, generally can be divided into Centroid, Area Node, fringe node, in order to dispatch the access request of user, in addition it is also necessary to
Dispose global service load-balancing device（Abbreviation GSLB）.In Centroid layer deployment global object management server（Referred to as
GOMS）, whole CDN object is responsible for, the attribute of global content object can be changed；In Area Node layer deployment Object Management group
Server（Abbreviation OMS）, it is responsible for the object of maintenance management regional center；Native object management server is disposed in fringe node
（Abbreviation LOMS）, it is responsible for the object of maintenance management fringe node.
As shown in figure 1, content management server（Abbreviation CMS）It is the external system directly docked with CDN, it is responsible for making section
Mesh content and the metadata for managing these contents, when content production, which completes needs, provides a user service, CMS is needed content
Inject in CDN, distributed by CDN for it.
Due to the variation of user's using terminal, the form that various terminals are supported is different, so, in prior art
In, CDN edge streaming servers need to provide the Streaming Media of different-format and code check for various terminals, the coding transcoding of content
Completed by CMS, CMS needs the form and code check used to generate a kind of entity file for every kind of, then reinjects CDN.With
Family terminal needs to ask respective links on door according to oneself decoding capability, screen size, according to the link again into CDN
Obtain file.CDN is also to provide the user streaming media service according to the link of user.Existing content distributing network is based on entity
File carries out content scheduling, brings entity file incidence relation to safeguard that complicated, same content is repeatedly injected, can not shared in same
The problems such as appearance, in order to solve these problems, the present invention proposes a kind of content distributing network dispatching method and system and native object
Management server.In the present invention, same content CMS need to only inject once, and different types of terminals can share same content, no
During the same content of same type terminal access, the content identification accessed in URL is the same, all points to same object factory file set
（Abbreviation ODFG）.Object factory file set is introduced first below, and the CDN based on the object factory file set is then introduced again
Dispatching method.
Fig. 2 is the structural representation that an example of the present invention sex object describes file set.
As shown in Fig. 2 for content management server（Abbreviation CMS）Each content of injection only corresponds to one object of generation
File set is described（Abbreviation ODFG）.In object factory file set（Abbreviation ODFG）In, it can include being applied to different type
The object factory file of terminal（Abbreviation ODF）And its subfile, for example, ODF suitable for IPTV terminal, suitable for PC
ODF, the ODF suitable for tablet personal computer, the ODF suitable for mobile phone terminal；It can also include base suitable for the ODF of IPTV terminal
The subfile such as this speed file and other speed texts.It should be noted that the original content file of CMS injections can be used as one
Individual single file, can also as the corresponding ODF of the higher terminal of a certain frequency of use subfile, for example, CMS injection original
Beginning content file can be as suitable for the basic speed file under the ODF of IPTV terminal.
Below to object factory file set（Abbreviation ODFG）And its affiliated object factory file（Abbreviation ODF）Carry out detailed
Describe in detail bright.
Content management server（Abbreviation CMS）Each content of injection only corresponds to one object factory file set of generation
（Abbreviation ODFG）.ODFG files include the file content mark FileContentID of all subobjects produced by the content.
All fields need to use host byte order in ODFG files（Little-Endian）.ODGF files include file header, subobject
Two parts are indexed, file can use binary file format.
ODFG file header can be defined according to the content of table 1：
Table 1
ODFG subobject index includes indexing head and multi code Rate of Chinese character subfile index two parts.
All parameters can use label body TLV in indexing head（Tag, Length, Value, label length value）Form is entered
Row definition.Indexing head can be defined according to table 2.
Table 2
Multi code Rate of Chinese character subfile index is by index information（Index Info）Label body is defined, and defines the pass for being indexed media
Key information.Note：Tag definition length given below refers to the maximum length of each property value, and actual length can be than this
It is short.
Index Info label bodies can be defined according to table 3：
Table 3
In the form of the present invention, M represents essential, and O represents optional.
ODFG Content Info label bodies in Index Info label bodies can be defined according to table 4：
Table 4
ODFG Sub File Info label bodies in Index Info label bodies can be defined according to table 5.According to
Sub File ID, ODF Sub File FileContentID, ub File URI and ODF Sub File Type in table 5
Corresponding ODF files can be found.
Table 5
The specifying information of content is by an object factory file（ODF）To describe.The ODF that content is generated when injecting CDN
File, its all field can use host byte order（Little-Endian）Description, ODF files mainly comprising file header,
Indexing head and the part of index record three, file can use binary file format.
ODF file header can be defined according to table 6：
Table 6
ODF indexing head is defined by ODF Info label bodies, and definition is indexed the key message of media, specifically such as the institute of table 7
Show：
Table 7
OOF Info label bodies definition in ODF Info label bodies is as shown in table 8：
Table 8
Sub File Info label bodies definition in ODF Info label bodies is as shown in table 9：
Table 9
Content Info label bodies definition in ODF Info label bodies is as shown in table 10：
Table 10
ODF index record defines the key frame index information of all subfiles, and CDN is easy to by index record information
Faster, it is easier to be positioned for user access request.
Explanation based on above-mentioned object factory file set and object factory file, the invention also provides a kind of CDN is adjusted
Degree method.
Fig. 3 is the schematic flow sheet of CDN dispatching methods one embodiment of the present invention.As shown in figure 3, CDN dispatching method bags
Include following steps：
Step 301, global service load-balancing device GSLB receives the access request that user submits, and by the access of user
Request is dispatched to native object management server LOMS, and the access request includes uniform resource position mark URL address, the URL
Location includes protocol type, URL prefix, domain and object factory file set mark ODFGID.
Wherein, a kind of parameter format of URL addresses is expressed as follows：
(rtsp/http…)://Playback URL prefix/domain/ODFGID
For example, the URL addresses that IPTV terminal is accessed are：RTSP://tv180.cn/iptv/rangzidanfei, CDN root
According to iptv domains, learn that user will be watched by iptv terminals, CDN is searched corresponding further according to this ODFGID of rangzidanfei
ODFID files.
Wherein, the connection shape that global service load-balancing device GSLB can be according to LOMS loading conditions and with user
The information such as condition are scheduled to access request.
Step 302, native object management server LOMS identifies ODFGID according to object factory file set and searches object
File set ODFG is described, and according to object factory file set ODFG description, searches corresponding object factory file ODF；
Wherein, object factory file ODF can for example include：ODF suitable for IPTV terminal, suitable for PC
ODF, the ODF suitable for tablet personal computer, ODF suitable for mobile phone terminal etc., but not limited to this.
Step 303, native object management server LOMS searches the corresponding subfile in the domain in object factory file ODF
（sub file）；
Step 304, if there is the corresponding subfile in the domain, native object management server LOMS sends the son to user
File；
Step 305, if there is no the corresponding subfile in the domain, native object management server LOMS searches content object
File OOF, content object file OOF are the original content files that content management server injects on same content；
Further, if native object management server LOMS does not find content object file OOF, LOMS is according to user
The temperature superior request content obj ect file OOF of request, is used in order to the user in other domains.
Step 306, the corresponding subfile in the domain is generated according to content object file OOF transcodings, and the son is sent to user
File.
The invention also provides a kind of method for generating the corresponding subfile in the domain according to content object file OOF transcodings,
Specifically include：
If first line of a couplet profit is remaining with a width of X, native object management server LOMS load is Y, and the code check of subfile is Z, is turned
Code needs the LOMS loads consumed to be W, and T1, T2, T3 are load threshold value, and the relation of three is T1 ＜ T2 ＜ T3, for example,
T1 can be that 50%, T2 can be that 80%, T can be 100% etc., but be not limited to these concrete numerical values.When（Y+W）During ＜ T1,
The corresponding subfile in the domain is generated according to content object file OOF transcodings；When（Y+W）>T2 and during X >=Z, superior request
The corresponding subfile in the domain；When（Y+W）>T2 and X ＜ Z and（Y+W）During≤T3, turned according to content object file OOF
Code generates the corresponding subfile in the domain；As X ＜ Z and（Y+W）>During T3, request failure configured information is returned to user.
Above-described embodiment, an object factory file set is set up for same content, and different types of terminals accesses same
During content, although the video file of actual access is different, but the content identification accessed in URL is the same, and it is same right to all point to
As description file set, therefore, the application need to only safeguard the content of object factory file set, without maintenance entity file association
Relation；, should less than the type terminal-pair if searched in object factory file set also, same content need to only be injected once
Subfile when, corresponding subfile can be obtained by the original content file transcoding of injection, it is achieved thereby that same content
It is shared, reduce the number of times for pulling up stream, save the network bandwidth.
Fig. 4 is the structural representation that CDN of the present invention dispatches system one embodiment.
As shown in figure 4, the CDN scheduling systems of the embodiment, including：Global service load-balancing device GSLB401 and sheet
Ground object management server LOMS402；
Global service load-balancing device GSLB401, the access request for receiving user's submission, and by the access of user
Request is dispatched to native object management server LOMS402, wherein, the access request includes uniform resource position mark URL address,
The URL addresses include protocol type, URL prefix, domain and object factory file set mark ODFGID；
Native object management server LOMS402, object is searched for identifying ODFGID according to object factory file set
File set ODFG is described, and according to object factory file set ODFG description, searches corresponding object factory file ODF；
The corresponding subfile in the domain is searched in object factory file ODF；If there is the corresponding subfile in the domain, being sent to user should
Subfile；If there is no the corresponding subfile in the domain, content object file OOF is searched, content object file OOF is content
The original content file that management server is injected on same content；Domain correspondence is generated according to content object file OOF transcodings
Subfile, and send the subfile to user.
Fig. 5 is the structural representation of native object management server LOMS402 one embodiment of the present invention.
As shown in figure 5, the native object management server LOMS402 of the embodiment, including：
Access request receiving unit 501, the user for receiving global service load-balancing device GSLB scheduling accesses
Request, the access request includes uniform resource position mark URL address, and the URL addresses include protocol type, URL prefix, domain and right
As description file set mark ODFGID,
Object factory file set searching unit 502, for identifying ODFGID lookups pair according to object factory file set
As description file set ODFG；
Object factory ff unit 503, for the description according to object factory file set ODFG, is searched corresponding
Object factory file ODF；
Subfile searching unit 504, for searching the corresponding subfile in the domain in object factory file ODF；
Subfile transcoding generation unit 505, if not finding the corresponding son in the domain for the subfile searching unit
File, searches content object file OOF, content object file OOF is that content management server injects on same content
Original content file；The corresponding subfile in the domain is generated according to content object file OOF transcodings；
Subfile transmitting element 506, for the corresponding subfile in the domain for finding the subfile searching unit 504
User is sent to, or, the subfile that the transcoding of subfile transcoding generation unit 505 is generated is sent to user.
Wherein, subfile transcoding generation unit 505 specifically can be used for：
When（Y+W）During ＜ T1, the corresponding subfile in the domain is generated according to content object file OOF transcodings；
When（Y+W）>T2 and during X >=Z, superior asks the corresponding subfile in the domain；
When（Y+W）>T2 and X ＜ Z and（Y+W）During≤T3, the domain pair is generated according to content object file OOF transcodings
The subfile answered；
Wherein, with a width of X more than first line of a couplet profit, native object management server LOMS load is Y, and the code check of subfile is Z,
Transcoding needs the LOMS loads consumed to be W, and T1, T2, T3 are threshold value, and the relation of three is T1 ＜ T2 ＜ T3.
Native object management server LOMS also includes content object file acquiring unit, if for not finding content
Obj ect file OOF, the temperature superior request content obj ect file OOF asked according to user, makes in order to the user in other domains
With.
Wherein, object factory file ODF can for example include：ODF suitable for IPTV terminal, suitable for PC
ODF, the ODF suitable for tablet personal computer, the ODF suitable for mobile phone terminal.
Above-described embodiment, an object factory file set is set up for same content, and different types of terminals accesses same
During content, although the video file of actual access is different, but the content identification accessed in URL is the same, and it is same right to all point to
As description file set, therefore, the application need to only safeguard the content of object factory file set, without maintenance entity file association
Relation；, should less than the type terminal-pair if searched in object factory file set also, same content need to only be injected once
Subfile when, corresponding subfile can be obtained by the original content file transcoding of injection, it is achieved thereby that same content
It is shared, reduce the number of times for pulling up stream, save the network bandwidth.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can be by hardware
To complete, the hardware of correlation can also be instructed to complete by program, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (8)
1. a kind of content distributing network CDN dispatching methods, including：
The access request that user submits is received, the access request includes uniform resource position mark URL address, and the URL addresses include
Protocol type, URL prefix, domain and object factory file set mark ODFGID；
ODFGID is identified according to object factory file set and searches object factory file set ODFG, and according to object factory file
Set ODFG description, searches corresponding object factory file ODF, and the object factory file set ODFG is to be directed to content pipe
Manage unique object factory file set ODFG of the content generation of server injection；
The corresponding subfile in the domain is searched in object factory file ODF；
If there is the corresponding subfile in the domain, the subfile is sent to user；
If there is no the corresponding subfile in the domain, content object file OOF is searched, content object file OOF is content pipe
The original content file that reason server injects on same content；
The corresponding subfile in the domain is generated according to content object file OOF transcodings, and the subfile is sent to user；
Wherein, if not finding content object file OOF, the temperature superior request content obj ect file asked according to user
OOF, is used in order to the user in other domains.
2. according to the method described in claim 1, it is characterised in that described that the domain is generated according to content object file OOF transcodings
Corresponding subfile includes：
As (Y+W) ＜ T1, the corresponding subfile in the domain is generated according to content object file OOF transcodings；
As (Y+W)>T2 and during X >=Z, superior asks the corresponding subfile in the domain；
As (Y+W)>T2 and X ＜ Z and during (Y+W)≤T3, generate the domain corresponding according to content object file OOF transcodings
Subfile；
Wherein, first line of a couplet profit is remaining with a width of X, and native object management server LOMS load is Y, and the code check of subfile is Z, transcoding
The LOMS loads for needing consumption are W, and T1, T2, T3 are load threshold value, and the relation of three is T1 ＜ T2 ＜ T3.
3. according to the method described in claim 1, it is characterised in that the object factory file ODF includes：It is whole suitable for IPTV
The ODF at end, the ODF suitable for PC, the ODF suitable for tablet personal computer, the ODF suitable for mobile phone terminal.
4. a kind of native object management server LOMS, including：
Access request receiving unit, the user access request for receiving global service load-balancing device GSLB scheduling, should
Access request includes uniform resource position mark URL address, and the URL addresses include protocol type, URL prefix, domain and object factory
File set identifies ODFGID,
Object factory file set searching unit, object factory text is searched for identifying ODFGID according to object factory file set
Part set ODFG, the object factory file set ODFG be for content management server inject content generation it is unique
Object factory file set ODFG；
Object factory ff unit, for the description according to object factory file set ODFG, searches corresponding object and retouches
State file ODF；
Subfile searching unit, for searching the corresponding subfile in the domain in object factory file ODF；
Subfile transcoding generation unit, if not finding the corresponding subfile in the domain for the subfile searching unit, is looked into
Content object file OOF is looked for, content object file OOF is the original contents that content management server injects on same content
File；The corresponding subfile in the domain is generated according to content object file OOF transcodings；
Subfile transmitting element, the corresponding subfile in the domain for the subfile searching unit to be found is sent to use
Family, or, the subfile that the subfile transcoding generation unit transcoding is generated is sent to user；
Content object file acquiring unit, if for not finding content object file OOF, the temperature asked according to user to
Higher level request content obj ect file OOF, is used in order to the user in other domains.
5. native object management server LOMS according to claim 4, it is characterised in that the subfile transcoding generation
Unit specifically for：
As (Y+W) ＜ T1, the corresponding subfile in the domain is generated according to content object file OOF transcodings；
As (Y+W)>T2 and during X >=Z, superior asks the corresponding subfile in the domain；
As (Y+W)>T2 and X ＜ Z and during (Y+W)≤T3, generate the domain corresponding according to content object file OOF transcodings
Subfile；
Wherein, first line of a couplet profit is remaining with a width of X, and native object management server LOMS load is Y, and the code check of subfile is Z, transcoding
The LOMS loads for needing consumption are W, and T1, T2, T3 are threshold value, and the relation of three is T1 ＜ T2 ＜ T3.
6. native object management server LOMS according to claim 4, it is characterised in that the object factory file
ODF includes：ODF suitable for IPTV terminal, the ODF suitable for PC, the ODF suitable for tablet personal computer, suitable for hand
The ODF of machine terminal.
7. a kind of content distributing network CDN dispatches system, including：Global service load-balancing device GSLB and native object management
Server LOMS；
Global service load-balancing device GSLB, the access request for receiving user's submission, and the access request of user is adjusted
Native object management server LOMS is spent, wherein, the access request includes uniform resource position mark URL address, the URL addresses
ODFGID is identified including protocol type, URL prefix, domain and object factory file set；
Native object management server LOMS, object factory file is searched for identifying ODFGID according to object factory file set
Set ODFG, and according to object factory file set ODFG description, search corresponding object factory file ODF；Retouched in object
State and the corresponding subfile in the domain is searched in file ODF；If there is the corresponding subfile in the domain, the subfile is sent to user；
If there is no the corresponding subfile in the domain, content object file OOF is searched, content object file OOF is Content Management clothes
The original content file that business device injects on same content；The corresponding Ziwen in the domain is generated according to content object file OOF transcodings
Part, and send the subfile to user；It is upward according to the temperature that user asks if not finding content object file OOF
Level request content obj ect file OOF, is used in order to the user in other domains；
Wherein, the object factory file set ODFG be for content management server inject content generation it is unique right
As description file set ODFG.
8. system according to claim 7, it is characterised in that the native object management server LOMS is claim
Native object management server LOMS described in any one of 4-6.
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| CN106210760A (en) * | 2016-06-24 | 2016-12-07 | 杭州迪普科技有限公司 | The caching method of streaming media resource and device |
| CN107968948A (en) * | 2016-10-19 | 2018-04-27 | 北京新唐思创教育科技有限公司 | Online Video playback method and system |
| CN110944038A (en) * | 2019-10-29 | 2020-03-31 | 北京奇艺世纪科技有限公司 | CDN scheduling method and system |
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