CN107613308A - Forwarding data flow method and system under a kind of live scene - Google Patents
Forwarding data flow method and system under a kind of live scene Download PDFInfo
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- CN107613308A CN107613308A CN201710655883.3A CN201710655883A CN107613308A CN 107613308 A CN107613308 A CN 107613308A CN 201710655883 A CN201710655883 A CN 201710655883A CN 107613308 A CN107613308 A CN 107613308A
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Abstract
The invention discloses stream compression forwarding method, this method under live scene to comprise the following steps：S10：Receive live broadcast service data flow request message, analysis request message content, search and locally whether there is the data flow resource corresponding with the live broadcast service data flow request message, judge whether to forward the live broadcast service data flow request message to external server with this；S20：If judged result issues the local existing data flow resource corresponding with the live broadcast service data flow request message not forward the live broadcast service data flow request message to external server.The present invention can save network downstream bandwidth consumption and network platform outlet bandwidth, improve data acquisition efficiency.
Description
Technical field
The present invention relates to forwarding data flow method and system under Data Interchange Technology, more particularly to a kind of live scene.
Background technology
Information can be broadcast to multiple users by channel in various environment, for example, information can be from network
Server is wirelessly transmitted to the system based on processor of multiple wireless couplings, today of rapid development of information technology,
Increasing data message (video, picture, file etc.) is transmitted by internet to its demand user, if transmission media has
Limited bandwidth and a large number of users be present, then may each user select different programs, cause existing bandwidth to carry
Burden；In addition, different users may expect receive information on demand, that is, identical information may can be also selected, still
It may be carried out in different time, due to the time difference, identical information may be sent at different user at twice, as a result, to a large amount of
User this may result in more bandwidth consumption when transmitting the information of such as video etc.
Therefore, in order to solve this phenomenon, or improved technology increases bandwidth, or reasonable distribution user asks, save
Go out a part of inessential bandwidth used, for example, when multiple user terminals are watching same programme televised live in LAN, transmit matchmaker
The data message (video flowing, audio stream) that body is handed down to multiple user terminals is identical, so transmission media only needs to issue portion
Data message is to the router in LAN, and router is handed down to the multiple user terminals for watching same programme televised live, thus
Non-essential bandwidth can be saved, when user terminal is more, the bandwidth saved is also just also more.
Patent document such as Publication No. CN101789875B discloses " a kind of method and apparatus of forwarding data flow, road
By device ", the method for the forwarding data flow, including：Receive data flow；Obtain the attribute of the data flow inbound link；According to
The attribute of the inbound link and advance setting, selection need to carry out the broadcast domain of forwarding data flow；According to the broadcast of selection
Domain carries out forwarding data flow.Specific broadcast is combined into which outbound by the inbound link for having allocated respective attributes in advance
Domain, to realize multicast isolation and save the bandwidth of forwarding data flow channel.
And for example Publication No. CN104660507A patent document discloses a kind of " control method of forwarding data flow route
And device ", methods described is applied to first network, and methods described also includes：Receive the first data flow that the network equipment is sent
Forwarding request；First data flow is obtained from the parameter information of each data flow prestored according to the forwarding request
Parameter information；The forwarding strategy of first data flow is determined according to the parameter information；The forwarding strategy includes described
Other at least one communication informations of the five-tuple of first data flow and first data flow；According to first data flow
Forwarding strategy and first network logical topology determine first data flow in the network forwarding route；By institute
State forwarding route of first data flow in the first network and be sent to the network equipment, the forwarding strategy of controller foundation
Not only include the five-tuple of the first data flow, have also combined other communication informations of data flow, also, controller is also according to net
The logical topology of network so that controller determine the first data flow forwarding route can it is more flexible, more optimize, carry
High network resource utilization.
The content of the invention
The technical problem to be solved in the present invention is to be directed to above-mentioned the deficiencies in the prior art, there is provided one kind can save network downstream
Forwarding data flow method and system under the live scene of bandwidth consumption and network platform outlet bandwidth.
To achieve these goals, the technical solution adopted by the present invention is：
Stream compression forwarding method, this method comprise the following steps under a kind of live scene：
S10：Live broadcast service data flow request message is received, analysis request message content, searches local whether there is and institute
The corresponding data flow resource of live broadcast service data flow request message is stated, is judged whether with this described straight to external server forwarding
Multicast business data stream request message；
S20：If judged result issues this not forward the live broadcast service data flow request message to external server
The data flow resource corresponding with the live broadcast service data flow request message existing for ground.
Further, also include before the step S10：
S01：The data flow request message that the network equipment is sent is received, identifies live broadcast service data flow request message；
S02：Redirect the live broadcast service data flow request message.
Further, the step S10 includes：
S11：Distribution Service Instance is established, for forwarding live broadcast service data flow request message and issuing live broadcast service data
Stream, the distribution Service Instance correspond with the live broadcast service data flow request message；
S12：If in the presence of the data flow resource corresponding with the live broadcast service data flow request message, do not taken to outside
Business device forwards the live broadcast service data flow request message；If conversely, being not present, establish and obtain client instance to outside clothes
Business device forwards the live broadcast service data flow request message, and the acquisition client instance is used for described in external server forwarding
Live broadcast service data flow request message and issue live broadcast service data flow.
Further, the step S20 includes：
S21：Foundation down forwards list, will carry the distribution Service Instance of identical live broadcast service data flow request message
List is down forwarded added to described, it is described to down forward list and corresponded with the acquisition client instance, it is described descending
Forwarding list is used to receive the data flow that the acquisition client instance issues.
Further, after the live broadcast service data flow request terminates, the distribution Service Instance is deleted, when the acquisition
Under client instance it is corresponding it is described to down forward list be space-time, delete the acquisition client instance.
Forwarding data flow system under a kind of live scene, the system include：
Forwarding module, for receiving live broadcast service data flow request message, analysis request message content, whether search local
In the presence of the data flow resource corresponding with the live broadcast service data flow request message, judge whether to turn to external server with this
Send out live broadcast service data flow request message described；
Module is issued, if for forwarding module judged result for not to the external server forwarding live broadcast service data flow
Request message, then issue the local existing data flow resource corresponding with the live broadcast service data flow request message.
Further, the system also includes：
It was found that and redirection module, for receive the network equipment transmission data flow request message, identify live broadcast service
Data flow request message, and redirect the live broadcast service data flow request message.
Further, the forwarding module includes：
Receiving unit, for receiving live broadcast service data flow request message；
Analyzing searching unit, the request message content received for analyzing the receiving unit, and lookup is locally
It is no the data flow resource corresponding with the live broadcast service data flow request message to be present；
Retransmission unit is judged, for judging whether to forward the live broadcast service data flow request message to external server.
Further, the forwarding module also includes：
Distribute Service Instance unit, for establishing distribution Service Instance forwarding live broadcast service data flow request message and issuing
Live broadcast service data flow, the distribution Service Instance correspond with the live broadcast service data flow request message；
Client instance unit is obtained, client instance is obtained to the external server forwarding live broadcast service for establishing
Data flow request message, the acquisition client instance are used to forward the live broadcast service data flow request report to external server
Text and issue live broadcast service data flow.
Further, the module that issues includes：
List cell, list is down forwarded for establishing, point of identical live broadcast service data flow request message will be carried
Hair Service Instance down forwards list added to described, described to down forward list and the acquisition client instance 1 a pair
Should, the data flow for down forwarding list and being issued for receiving the acquisition client instance.
After adopting the above technical scheme, the beneficial effects of the invention are as follows：Judge whether need outwards by analyzing lookup
Portion's server forwarding live broadcast service data flow request message, it more directly can quickly distinguish and judge to need the report forwarded
Text, mitigate forwarding pressure；It is existing just from local during by not forwarding live broadcast service data flow request message to external server
Data flow resource is issued at same data stream obtaining, makes the utilization that data are more efficient, while reduce issuing for external server
Load, so as to save downlink bandwidth, make Web vector graphic more smooth, users' satisfaction degree is higher.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly or prior art technical scheme, accompanying drawing is as follows：
Fig. 1 is forwarding data flow method flow diagram under a kind of live scene that the embodiment of the present invention 1 provides；
Fig. 2 is forwarding data flow method flow diagram under a kind of live scene that the embodiment of the present invention 2 provides；
Fig. 3 is forwarding data flow method flow diagram under a kind of live scene that the embodiment of the present invention 3 provides；
Fig. 4 is forwarding data flow method flow diagram under a kind of live scene that the embodiment of the present invention 4 provides；
Fig. 5 is forwarding data flow system block diagram under a kind of live scene that the embodiment of the present invention 5 provides.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment 1
As shown in figure 1, the present embodiment provides stream compression forwarding method under a kind of live scene, this method includes following step
Suddenly：
S10：Live broadcast service data flow request message is received, analysis request message content, searches local whether there is and institute
The corresponding data flow resource of live broadcast service data flow request message is stated, is judged whether with this described straight to external server forwarding
Multicast business data stream request message；
In this step, carrier of the router as forwarding data flow, first, client can send phase due to user's demand
The request of data answered, such as client need to see network direct broadcasting program, will initiate live broadcast service data flow request message, route
Device receives this kind of message, will analyze message content, contrasts the message field (MFLD), search router locally whether there is with it is described straight
The corresponding data flow resource of multicast business data stream request message；Then, router is judged according to the information after above-mentioned processing
Whether need to ask to external server (server of map network platform, the CDN server of generally live platform) forwarding
Seek message；It is exactly briefly when client request live broadcast service data flow, just has other client to obtain identical
Live broadcast service data flow, avoid the need for that the live broadcast service data flow request message that the latter client is sent is transmitted into outside again
Server.
S20：If judged result issues this not forward the live broadcast service data flow request message to external server
The data flow resource corresponding with the live broadcast service data flow request message existing for ground.
In this step, router judges that the live broadcast service data flow request message need not be forwarded to external server,
Just there is other client obtaining identical live broadcast service data flow with regard to representing, so directly just thus place issues client
The live broadcast service data flow of required acquisition, just solve the request of data in router interior and issue, such external service
Device need to only keep issuing for first a data flow, it is ensured that the programme televised live viewing of multiple client, so as to save
Downlink bandwidth, watches that the client of same programme televised live is more, and relative saved downlink bandwidth is also more, network money
Source has obtained more preferable use.
If router judges to need to forward the live broadcast service data flow request message to external server, that is, should
The live broadcast service data flow of client request is a brand-new request, then the request first will be forwarded to external server,
Then external server is waited to issue corresponding data flow resource.
Embodiment 2
As shown in Fig. 2 the present embodiment and the difference of embodiment before are, the present embodiment provides a kind of more detailed place
The mode of live data streams forwarding is managed, is also included before the step S10：
S01：The data flow request message that the network equipment is sent is received, identifies live broadcast service data flow request message；This
The network equipment at place is mostly the client for having online demand, and the species of Web content is varied, message content during request
Also all different, so being directed to this method, router will identify the data flow request that client is sent to network platform server end
Message.
S02：Redirect the live broadcast service data flow request message；Once it was found that live broadcast service data flow request message,
Just by corresponding redirecting technique, corresponding request message is redirected to special disposal live broadcast service data flow in router
The module of request message.
Such as：If for the stream distribution agreement of HTTP-FLV modes, then using HTTP 302 redirecting technique, energy
It is enough preferably to complete data redirection；If for the agreement of RTMP modes, then using modification message purpose IP and PORT
Technology, the module of special disposal live broadcast service data flow request message is directly forwarded the packet into router.
The step S10 includes：
S11：Distribution Service Instance is established, for forwarding live broadcast service data flow request message and issuing live broadcast service data
Stream, the distribution Service Instance correspond with the live broadcast service data flow request message, that is to say, that distribution Service Instance
Corresponded with client, how many how many client request live broadcast service data flow distribute Service Instance with regard to；
S12：If in the presence of the data flow resource corresponding with the live broadcast service data flow request message, do not taken to outside
Business device forwards the live broadcast service data flow request message；If conversely, being not present, establish and obtain client instance to outside clothes
Business device forwards the live broadcast service data flow request message, and the acquisition client instance is used for described in external server forwarding
Live broadcast service data flow request message and issue live broadcast service data flow.
Specifically：The module of special disposal live broadcast service data flow request message receives redirect in router
After live broadcast service data flow request message, a distribution Service Instance is just established, then first analyzes and search local whether there is
The data flow resource corresponding with the live broadcast service data flow request message；
It is if it is present existing relative with the live broadcast service data flow request message from distribution Service Instance to local
The data flow Energy Resources Service forwarding request message answered；Then thus locate directly to issue the corresponding data flow and give distribution Service Instance,
Corresponding client is finally handed down to by distribution Service Instance；
If it does not exist, then establishing an acquisition client instance, the live broadcast service number is forwarded by distribution Service Instance
Acquisition client instance is given according to stream request message, then the live broadcast service number is forwarded from acquisition client instance to external server
According to stream request message；After acquisition client instance receives the live broadcast service data flow that external server issues, then it is handed down to it
It forwards the corresponding distribution Service Instance of the live broadcast service data flow request message to forward direction, then is issued by distribution Service Instance
To corresponding client.
Embodiment 3
As shown in figure 3, the present embodiment and the difference of embodiment 2 are, what the present embodiment offer one was more easily concentrated
The method for issuing live broadcast service data flow, the step S20 include：
S21：Foundation down forwards list, will carry the distribution Service Instance of identical live broadcast service data flow request message
List is down forwarded added to described, it is described to down forward list and corresponded with the acquisition client instance, it is described descending
Forwarding list is used to receive the data flow that the acquisition client instance issues.From method and step in embodiment 2 before, take
Distribution Service Instance with identical live broadcast service data flow request message can forward live industry to same acquisition client instance
Business data flow request message.
Such as：When client 1 is obtaining live broadcast service data flow, if client 2 also to obtain it is identical live
Business data flow, distribution Service Instance 2 corresponding to client 2, can search whether to obtain identical live industry in local
The acquisition client instance of business data flow is being run, if so, will not then establish new acquisition client instance, but directly to
Existing acquisition client instance 1 forwards request message；After acquisition client instance 1 receives request message, distribution is serviced
Example 2 be added to it is same down forward in list, in list just have distribution Service Instance 1 and distribution Service Instance 2, obtain visitor
Family end example 1, can all distribution services into descending forwarding list subsequently after external server receives live broadcast service data flow
Example (namely distributing Service Instance 1 and distribution Service Instance 2) forwards a live broadcast service data flow respectively.
In the present embodiment, client establishes forwarding relation in a manner of service end TCP SOCKET, with distribution Service Instance.
After obtaining client instance startup, connection can be gone to obtain the listening port of client instance in a manner of TCP CLIENT, established
After connection, obtain client instance and connected by the TCP to distribution Service Instance converting downlink live broadcast service data flow.
Embodiment 4
As shown in figure 4, the present embodiment and the difference of embodiment 3 are, the present embodiment considers router memory problem, client
After the live broadcast service data flow request at end terminates, the distribution Service Instance is deleted, when under the acquisition client instance
It is space-time to down forward list described in corresponding, deletes the acquisition client instance.
That is the distribution Service Instance and the acquisition client instance are all established temporarily, and distribution service is real
Example will disappear after its corresponding client terminates live broadcast service data flow request, but may also have other clients also obtaining
The identical live broadcast service data flow is taken, so obtaining client instance will not disappear at once, only down forwards row when described
When there is no any distribution Service Instance in table, it can just terminate automatically.So contribute to the data flow reasonable distribution and pipe of client
Reason.
Distribute the interaction between Service Instance, acquisition client instance and external server, it then follows original live system
Data Transport Protocol in system, such as HTTP-FLV or RTMP.
Embodiment 5
As shown in figure 5, the present embodiment provides forwarding data flow system under a kind of live scene, the system includes：
Forwarding module 100, for receiving live broadcast service data flow request message, analysis request message content, search local
With the presence or absence of the data flow resource corresponding with the live broadcast service data flow request message, judged whether with this to external service
Device forwards the live broadcast service data flow request message；
Module 200 is issued, if for the judged result of forwarding module 100 for not to the external server forwarding live broadcast service
Data flow request message, then issue the local existing data flow money corresponding with the live broadcast service data flow request message
Source.
It was found that with redirection module 300, for receiving the data flow request message of network equipment transmission, live industry is identified
Business data flow request message, and the live broadcast service data flow request message is redirected to forwarding module 100.
The forwarding module 100 includes：
Receiving unit 110, for receiving live broadcast service data flow request message；
Searching unit 120, the request message content received for analyzing the receiving unit 110 are analyzed, and is searched
It is local to whether there is the data flow resource corresponding with the live broadcast service data flow request message；
Retransmission unit 130 is judged, for judging whether to forward the live broadcast service data flow request report to external server
Text.
It is further preferred that the forwarding module 100 also includes：
Distribute Service Instance unit 140, for establish distribution Service Instance forwarding live broadcast service data flow request message and
Live broadcast service data flow is issued, the distribution Service Instance corresponds with the live broadcast service data flow request message；
Client instance unit 150 is obtained, it is described live to external server forwarding for establishing acquisition client instance
Business data flow request message, the acquisition client instance are used to forward the live broadcast service data flow please to external server
Seek message and issue live broadcast service data flow.
The module 200 that issues includes：
List cell 210, list is down forwarded for establishing, identical live broadcast service data flow request message will be carried
Distribution Service Instance down forwards list added to described, described to down forward list and the acquisition client instance 1 a pair
Should, the data flow for down forwarding list and being issued for receiving the acquisition client instance.
As preferable, the system also includes：
Removing module 400, after terminating for the live broadcast service data flow request, the distribution Service Instance is deleted, when
Under the acquisition client instance it is corresponding it is described to down forward list be space-time, delete the acquisition client instance.
The operation logic of said system is as follows：One router include forwarding module 100, issue module 200, find and
Redirection module 300 and removing module 400.Client sends business by router external network Platform Server please
Ask.Client sends the request to router first, and the discovery of router and redirection module 300 identify the request, Ran Houru
Fruit is other requests in addition to live broadcast service data flow request, then forwards the request by the original normal mode of router；
If live broadcast service data flow request, then by finding to redirect the request connecing to forwarding module 100 with redirection module 300
Unit 110 is received, while distributes Service Instance unit 140 and starts therewith, the notice to be forwarded such as the request in carrying；
Analyze searching unit 120 and analyze the request, and locally searching whether the resource corresponding with the request be present,
Judged whether to forward the request to external server from judgement retransmission unit 130, if forwarding the request to external server
Start and obtain client instance unit 150, establish and obtain client instance, first notify distribution Service Instance unit 140 and receive
The request that it is forwarded, then forwards the request to external server by acquisition client instance unit 150；
Client instance unit 150 is obtained if do not started without forwarding the request to external server, but to route
Device local data base contains the corresponding data flow Energy Resources Service of the request and forwards the request (if the live data streams of general the type
Ask as first time, be not in locally containing the corresponding Energy Resources Service of the request, if not the first time of the type, that
It is exactly to obtain at client instance unit that local data base, which contains the corresponding Energy Resources Service of the request)；
There is request just to have to issue, in summary, the live broadcast service data flow of client is issued by acquisition client
Example is completed, and it is newly-built or original to differ only in and obtain client instance, in order to more reasonably issue live broadcast service
Data flow, the module 200 that issues of the system include list cell 210, and a distribution service is connected to whenever obtaining client instance
During the request that example forwarding comes, just the distribution Service Instance is added to obtain down forwarded under client instance corresponding to this
In list；
Can have according to the difference of live broadcast service request type, under list cell 210 it is multiple it is such down forward list,
Obtain data flow that client instance is connected to from external server just directly to down forward list to corresponding and go to issue, distribute
This data flow being connected to can be finally handed down to client by Service Instance, even if such live broadcast service acquisition request is completed
.
After client terminates live broadcast service data flow request, removing module 400 will delete distribution Service Instance unit
In distribution Service Instance corresponding to the client, to down forward list be space-time when same in list cell, removing module 400
This will be deleted and down forward acquisition client instance corresponding to list.
Certainly, if in order to allow removing module 400 more timely to complete to delete work, distribution service can also be deleted
The software section of example incorporates distribution Service Instance unit, and the part involvement for deleting acquisition client instance obtains client instance
Unit, gone to control the presence of which and disappearance as the unit where them.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
1. stream compression forwarding method under a kind of live scene, it is characterised in that this method comprises the following steps：
S10：Receive live broadcast service data flow request message, analysis request message content, search it is local whether there is with it is described straight
The corresponding data flow resource of multicast business data stream request message, judge whether to forward the live industry to external server with this
Business data flow request message；
S20：If judged result issues local deposit not forward the live broadcast service data flow request message to external server
The data flow resource corresponding with the live broadcast service data flow request message.
2. stream compression forwarding method under a kind of live scene according to claim 1, it is characterised in that the step S10
Also include before：
S01：The data flow request message that the network equipment is sent is received, identifies live broadcast service data flow request message；
S02：Redirect the live broadcast service data flow request message.
3. stream compression forwarding method under a kind of live scene according to claim 1, it is characterised in that the step S10
Include：
S11：Distribution Service Instance is established, for forwarding live broadcast service data flow request message and issuing live broadcast service data flow,
The distribution Service Instance corresponds with the live broadcast service data flow request message；
S12：If in the presence of the data flow resource corresponding with the live broadcast service data flow request message, not to external server
Forward the live broadcast service data flow request message；If conversely, being not present, establish and obtain client instance to external server
The live broadcast service data flow request message is forwarded, the acquisition client instance is used for described live to external server forwarding
Business data flow request message and issue live broadcast service data flow.
4. stream compression forwarding method under a kind of live scene according to claim 3, it is characterised in that the step S20
Include：
S21：Foundation down forwards list, and the distribution Service Instance for carrying identical live broadcast service data flow request message is added
List is down forwarded to described, it is described to down forward list and corresponded with the acquisition client instance, it is described to down forward
List is used to receive the data flow that the acquisition client instance issues.
5. stream compression forwarding method under a kind of live scene according to claim 3 or 4, it is characterised in that described live
Business data flow request terminate after, delete the distribution Service Instance, when it is described acquisition client instance under it is corresponding it is described under
Row forwarding list is space-time, deletes the acquisition client instance.
6. forwarding data flow system under a kind of live scene, it is characterised in that the system includes：
Forwarding module, for receiving live broadcast service data flow request message, analysis request message content, search local whether there is
The data flow resource corresponding with the live broadcast service data flow request message, judge whether to forward institute to external server with this
State live broadcast service data flow request message；
Module is issued, if for forwarding module judged result for not to the external server forwarding live broadcast service data flow request
Message, then issue the local existing data flow resource corresponding with the live broadcast service data flow request message.
7. forwarding data flow system under a kind of live scene according to claim 6, it is characterised in that the system is also wrapped
Include：
It was found that and redirection module, for receive the network equipment transmission data flow request message, identify live broadcast service data
Request message is flowed, and redirects the live broadcast service data flow request message.
8. forwarding data flow system under a kind of live scene according to claim 6, it is characterised in that the forwarding module
Including：
Receiving unit, for receiving live broadcast service data flow request message；
Searching unit, the request message content received for analyzing the receiving unit are analyzed, and local whether deposit searched
In the data flow resource corresponding with the live broadcast service data flow request message；
Retransmission unit is judged, for judging whether to forward the live broadcast service data flow request message to external server.
9. forwarding data flow system under a kind of live scene according to claim 6, it is characterised in that the forwarding module
Also include：
Distribute Service Instance unit, for establishing distribution Service Instance forwarding live broadcast service data flow request message and issuing live
Business data flow, the distribution Service Instance correspond with the live broadcast service data flow request message；
Client instance unit is obtained, client instance is obtained to the external server forwarding live broadcast service data for establishing
Flow request message, the acquisition client instance be used for external server forward the live broadcast service data flow request message and
Issue live broadcast service data flow.
10. forwarding data flow system under a kind of live scene according to claim 9, it is characterised in that described to issue mould
Block includes：
List cell, list is down forwarded for establishing, the distribution for carrying identical live broadcast service data flow request message is taken
Pragmatic example down forwards list described in, described to down forward list and the acquisition client instance one-to-one corresponding, institute
State and down forward the data flow that list issues for receiving the acquisition client instance.
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Application publication date: 20180119 |