CN109885414A - Distributed event notification method and device based on ZooKeeper - Google Patents
Distributed event notification method and device based on ZooKeeper Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of distributed event notification method and device based on ZooKeeper, wherein method includes: event publisher publication object event of first application by the first application；The event monitoring person of first application receives object event automatically, judges whether object event is cluster event；If object event is then converted into preset data type, the data of preset path on ZooKeeper are updated based on the object event for being converted into preset data type, when so that the data of preset path changing in event monitoring person's AM automatic monitoring to ZooKeeper of the second application, preset path obtains the data after variation from ZooKeeper, after data after the variation that will acquire are converted into object event by preset data type, into local event process flow.The present embodiment can realize the notice of distributed event based on ZooKeeper, compared with prior art, do not have to concern bottom layer treatment, can be supplied to the simplicity of user's out-of-the-box.
Description
Technical field
The present embodiments relate to Internet technical field more particularly to a kind of distributed events based on ZooKeeper
Notification method and device.
Background technique
In typical distributed system, one group of application distribution formula with incidence relation it is deployed in different machines
On, the work between these applications can effectively be coordinated by distributed event informing mechanism.
Currently, these Distributed Applications generally pass through voluntarily realization distributed event informing mechanism or pass through messaging bus
To realize distributed event informing mechanism.
But voluntarily realize distributed event informing mechanism, need to consider network transmission, encoding and decoding, high availability, extension
Property a series of problems, such as, development cost is larger, and do not have versatility；Realize that distributed event notifies machine based on messaging bus
System can use the bottom facilities of messaging bus offer, not have to consider in network transmission, encoding and decoding, high availability, scalability etc.
Problem is stated, but general messaging bus is all huger, it is to be understood that a series of API that messaging bus provides (compile by application program
Journey interface) and service build mode.
Summary of the invention
In view of the problems of the existing technology, the embodiment of the present invention provides a kind of distributed event based on ZooKeeper
Notification method and device.
The embodiment of the present invention provides a kind of distributed event notification method based on ZooKeeper, comprising:
First application issues object event by the event publisher of the first application；
The event monitoring person of first application receives the object event automatically, judges whether the object event is cluster thing
Part；
If the object event is cluster event, the object event is converted into preset data type, based on conversion
At the object event of preset data type, the data of preset path on ZooKeeper are updated, so that the event monitoring of the second application
When the data of preset path change in person's AM automatic monitoring to ZooKeeper, preset path obtains variation from ZooKeeper
Data afterwards, after the data after the variation that will acquire are converted into object event by preset data type, into local event processing
Process；
Wherein, first application memory is in event publisher and event monitoring person, event monitoring person's note of the first application
Volume is in the event publisher of the first application and while listening for the preset path on ZooKeeper；Second application memory exists
The event monitoring person of event publisher and event monitoring person, the second application are registered in the event publisher of the second application and simultaneously
Monitor the preset path on ZooKeeper；First application and second application are Distributed Application.
The embodiment of the present invention provides a kind of distributed event notification method based on ZooKeeper, comprising:
If the data of preset path change in event monitoring person's AM automatic monitoring to ZooKeeper of the second application,
Preset path obtains the data after variation from ZooKeeper；
Data after the variation that will acquire are converted into object event by preset data type；
Based on the object event being converted into, into local event process flow；
Wherein, second application memory is in event publisher and event monitoring person, event monitoring person's note of the second application
Volume is in the event publisher of the second application and while listening for the preset path on ZooKeeper.
The embodiment of the present invention provides a kind of distributed event notice device based on ZooKeeper, comprising:
Release module issues object event by the event publisher of the first application for the first application；
Judgment module, the event monitoring person for the first application receive the object event automatically, judge the target thing
Whether part is cluster event；
The object event is converted into preset data if being cluster event for the object event by update module
Type updates the data of preset path on ZooKeeper, so that second based on the object event for being converted into preset data type
It is pre- from ZooKeeper when the data of preset path change in event monitoring person's AM automatic monitoring to ZooKeeper of application
If path obtains the data after variation, after the data after the variation that will acquire are converted into object event by preset data type, into
Enter local event process flow；
Wherein, first application memory is in event publisher and event monitoring person, event monitoring person's note of the first application
Volume is in the event publisher of the first application and while listening for the preset path on ZooKeeper；Second application memory exists
The event monitoring person of event publisher and event monitoring person, the second application are registered in the event publisher of the second application and simultaneously
Monitor the preset path on ZooKeeper；First application and second application are Distributed Application.
The embodiment of the present invention provides a kind of distributed event notice device based on ZooKeeper, comprising:
Obtain module, if for second application event monitoring person's AM automatic monitoring to ZooKeeper on preset path number
According to changing, then preset path obtains the data after variation from ZooKeeper；
Conversion module, the data after variation for will acquire are converted into object event by preset data type；
Into module, for based on the object event being converted into, into local event process flow；
Wherein, second application memory is in event publisher and event monitoring person, event monitoring person's note of the second application
Volume is in the event publisher of the second application and while listening for the preset path on ZooKeeper.
The embodiment of the present invention provides a kind of electronic equipment, including memory, processor and storage are on a memory and can be
The computer program run on processor, the processor are realized when executing described program such as the step of the above method.
Distributed event notification method and device provided in an embodiment of the present invention based on ZooKeeper, is answered by first
Object event is issued with the event publisher by the first application, the event monitoring person of the first application receives object event automatically,
Judge whether object event is cluster event, if object event is then converted into preset data type, based on being converted into presetting
The object event of data type updates the data of preset path on ZooKeeper, so that the event monitoring person of the second application is automatic
When listening to the data of preset path on ZooKeeper and changing, preset path obtains the number after variation from ZooKeeper
According to the data after the variation that will acquire enter local event process flow after being converted into object event by preset data type；Its
In, the first application memory is registered in the first application in event publisher and event monitoring person, the event monitoring person of the first application
In event publisher and while listening for the preset path on ZooKeeper；Second application memory is supervised in event publisher and event
The event monitoring person of hearer, the second application are registered in the event publisher of the second application and while listening on ZooKeeper
Preset path；First application and the second application are Distributed Application, and thereby, it is possible to realize distributed event based on ZooKeeper
Notice, compared with prior art, do not have to concern bottom layer treatment, the simplicity of user's out-of-the-box can be supplied to.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of process for distributed event notification method based on ZooKeeper that one embodiment of the invention provides
Schematic diagram；
Fig. 2 is the schematic illustration of the distributed event notification method provided in an embodiment of the present invention based on ZooKeeper；
Fig. 3 be another embodiment of the present invention provides a kind of distributed event notification method based on ZooKeeper stream
Journey schematic diagram；
Fig. 4 is the structure that a kind of distributed event based on ZooKeeper that one embodiment of the invention provides notifies device
Schematic diagram；
Fig. 5 be another embodiment of the present invention provides a kind of distributed event based on ZooKeeper notify the knot of device
Structure schematic diagram；
Fig. 6 is the entity structure schematic diagram for the electronic equipment that one embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 shows a kind of distributed event notification method based on ZooKeeper of one embodiment of the invention offer
Flow diagram, as shown in Figure 1, the distributed event notification method based on ZooKeeper of the present embodiment, comprising:
S1, the first application issue object event by the event publisher of the first application.
S2, the first event monitoring person applied receive the object event automatically, judge whether the object event is collection
Group's event.
If S3, the object event are cluster event, the object event is converted into preset data type, is based on turning
It changes the object event of preset data type into, updates the data of preset path on ZooKeeper, so that the event prison of the second application
When the data of preset path change in hearer's AM automatic monitoring to ZooKeeper, preset path, which obtains, from ZooKeeper becomes
Data after change, after the data after the variation that will acquire are converted into object event by preset data type, at local event
Manage process.
Wherein, first application memory is in event publisher and event monitoring person, event monitoring person's note of the first application
Volume is in the event publisher of the first application and while listening for the preset path on ZooKeeper；Second application memory exists
The event monitoring person of event publisher and event monitoring person, the second application are registered in the event publisher of the second application and simultaneously
Monitor the preset path on ZooKeeper；First application and second application are Distributed Application.
In a particular application, the preset data type can be byte arrays.
In a particular application, for example, the upper preset path of ZooKeeper can on ZooKeeper /event/
The path example.
It is understood that ZooKeeper is a distributed application program coordination service system, it can be distribution
Using offer Consistency service.Multiple ZooKeeper examples can form cluster, to provide High Availabitity service.The present embodiment
In ZooKeeper can be a ZooKeeper, be also possible to the ZooKeeper cluster of multiple ZooKeeper composition, this
Embodiment is not limited.
It is understood that the Consistency service that the present embodiment the method utilizes ZooKeeper to provide, provides a kind of logical
The distributed event informing mechanism for being with, lightweight, unpacking, Distributed Application can be to using local event notification mechanism one
Sample handles the publication and consumption of distributed event, and the principle of the present embodiment the method can refer to Fig. 2.
Distributed event notification method provided in an embodiment of the present invention based on ZooKeeper is passed through by the first application
The event publisher of first application issues object event, and the event monitoring person of the first application receives object event automatically, judges mesh
Whether mark event is cluster event, if object event is then converted into preset data type, based on being converted into preset data class
The object event of type updates the data of preset path on ZooKeeper, so that event monitoring person's AM automatic monitoring of the second application is arrived
When the data of the upper preset path of ZooKeeper change, preset path obtains the data after variation from ZooKeeper, will
Data after the variation of acquisition enter local event process flow after being converted into object event by preset data type；Wherein,
For one application memory in event publisher and event monitoring person, the event monitoring person of the first application is registered in the event hair of the first application
Cloth person is upper and while listening for the preset path on ZooKeeper；Second application memory is in event publisher and event monitoring person, and
The event monitoring person of two applications is registered in the event publisher of the second application and while listening for the default road on ZooKeeper
Diameter；First application and the second application are Distributed Application, thereby, it is possible to realize the notice of distributed event based on ZooKeeper,
Compared with the voluntarily realization distributed event informing mechanism of the prior art, do not have to concern bottom layer treatment, with the prior art based on
Messaging bus realizes that distributed event informing mechanism is compared, and can be supplied to the simplicity of user's out-of-the-box.
Further, on the basis of the above embodiments, object event described in the present embodiment can be by a four-tuple table
Show:<type, timestamp, payload, cluster identity>；
Wherein, type indicates the type of object event, can be 32 without symbol by business self-defining and explanation, data type
Number integer；Timestamp indicates that the time at moment occurs for object event, can obtain the current time in system for generating moment time automatically,
Data type can be 64 signless integers；Payload indicates the effective information that object event carries, and can be specified by business
And explanation, data type are object type；Cluster identity indicates whether object event needs to issue to cluster, for example, can use <
Cluster>attribute indicates cluster identity, if<cluster>attribute is<true>, expression object event is cluster event, if<
Cluster>attribute is<fasle>, and expression object event is local event, and data type is Boolean type；
Correspondingly, described to judge whether the object event is cluster event, it may include: according to the object event
Cluster identity judges whether the object event is cluster event.
Further, on the basis of the above embodiments, after the step S2, the present embodiment the method can be with
Include:
If the object event is not cluster event, the object event is local event, into local event processing
Process.
Distributed event notification method provided in an embodiment of the present invention based on ZooKeeper can be based on ZooKeeper
The notice for realizing distributed event does not have to concern bottom compared with the voluntarily realization distributed event informing mechanism of the prior art
Processing can be supplied to user and unpack i.e. compared with the prior art is based on messaging bus realization distributed event informing mechanism
Simplicity.
Fig. 3 show another embodiment of the present invention provides a kind of distributed event notification method based on ZooKeeper
Flow diagram, as shown in figure 3, the distributed event notification method based on ZooKeeper of the present embodiment, comprising:
If the data of preset path change on P1, the second event monitoring person's AM automatic monitoring to ZooKeeper applied,
Then preset path obtains the data after variation from ZooKeeper.
Wherein, second application memory is in event publisher and event monitoring person, event monitoring person's note of the second application
Volume is in the event publisher of the second application and while listening for the preset path on ZooKeeper.
It is understood that corresponding with embodiment of the method shown in Fig. 1, this step is that the first application passes through the first application
After event publisher issues object event, the event monitoring person of the first application receives the object event automatically, judges target thing
Whether part is cluster event, if object event is cluster event, object event is converted into preset data type, based on conversion
It is updated on ZooKeeper after the data of preset path at the object event of preset data type, the event monitoring person of the second application
The data of preset path change in AM automatic monitoring to ZooKeeper.Wherein, first application memory is in event publisher
With event monitoring person, first application event monitoring person be registered in the event publisher of the first application and while listening for
Preset path on ZooKeeper；First application and second application are Distributed Application.
In a particular application, for example, the upper preset path of ZooKeeper can on ZooKeeper /event/
The path example.
Data after P2, the variation that will acquire are converted into object event by preset data type.
In a particular application, the preset data type can be byte arrays.
P3, based on the object event being converted into, into local event process flow.
It is understood that ZooKeeper is a distributed application program coordination service system, it can be distribution
Using offer Consistency service.Multiple ZooKeeper examples can form cluster, to provide High Availabitity service.The present embodiment
In ZooKeeper can be a ZooKeeper, be also possible to the ZooKeeper cluster of multiple ZooKeeper composition, this
Embodiment is not limited.
It is understood that the Consistency service that the present embodiment the method utilizes ZooKeeper to provide, provides a kind of logical
The distributed event informing mechanism for being with, lightweight, unpacking, Distributed Application can be to using local event notification mechanism one
Sample handles the publication and consumption of distributed event, and the principle of the present embodiment the method can refer to Fig. 2.
Distributed event notification method provided in an embodiment of the present invention based on ZooKeeper passes through the thing of the second application
If the data of preset path change in part listener AM automatic monitoring to ZooKeeper, the preset path from ZooKeeper
Data after obtaining variation, the data after the variation that will acquire are converted into object event by preset data type, based on being converted into
Object event, into local event process flow, wherein second application memory is in event publisher and event monitoring
The event monitoring person of person, the second application are registered in the event publisher of the second application and while listening for pre- on ZooKeeper
If path, the notice of distributed event can be realized based on ZooKeeper, it is logical with the voluntarily realization distributed event of the prior art
Know that mechanism is compared, do not have to concern bottom layer treatment, with the prior art based on messaging bus realization distributed event informing mechanism phase
Than the simplicity of user's out-of-the-box can be supplied to.
Further, on the basis of the above embodiments, object event described in the present embodiment can be by a four-tuple table
Show:<type, timestamp, payload, cluster identity>；
Wherein, wherein type indicates the type of object event, can be by business self-defining and explanation, data type 32
Position signless integer；Timestamp indicates that the time at moment occurs for object event, can obtain the system for generating moment time automatically and work as
Preceding time, data type can be 64 signless integers；Payload indicates the effective information that object event carries, can be by industry
Business is specified and explains, data type is object type；Cluster identity indicates whether object event needs to issue to cluster, for example,
Cluster identity can be indicated with<cluster>attribute, if<cluster>attribute is<true>, expression object event is cluster thing
Part, if<cluster>attribute is<fasle>, expression object event is local event, and data type is Boolean type；
Correspondingly, the data after the variation that will acquire are converted into object event by preset data type, may include:
Data after the variation that will acquire are converted into object event by preset data type, by the cluster mark in object event
Know be revised as not needing the expression of the local event issued to cluster (such as can be by<cluster>attribute in object event
It is revised as<fasle>).
Distributed event notification method provided in an embodiment of the present invention based on ZooKeeper can be based on ZooKeeper
The notice for realizing distributed event does not have to concern bottom compared with the voluntarily realization distributed event informing mechanism of the prior art
Processing can be supplied to user and unpack i.e. compared with the prior art is based on messaging bus realization distributed event informing mechanism
Simplicity.
Fig. 4 shows a kind of distributed event notice device based on ZooKeeper of one embodiment of the invention offer
Structural schematic diagram, as shown in figure 4, the distributed event based on ZooKeeper of the present embodiment notifies device, comprising: publication mould
Block 41, judgment module 42 and update module 43；Wherein:
The release module 41 issues object event by the event publisher of the first application for the first application；
The judgment module 42, the event monitoring person for the first application receives the object event automatically, described in judgement
Whether object event is cluster event；
The object event is converted into pre- by the update module 43 if being cluster event for the object event
If data type, based on the object event for being converted into preset data type, the data of preset path on ZooKeeper are updated, with
When the data of preset path in event monitoring person's AM automatic monitoring to ZooKeeper of the second application being made to change, from
The upper preset path of ZooKeeper obtains the data after variation, and the data after the variation that will acquire are converted by preset data type
After object event, into local event process flow；
Wherein, first application memory is in event publisher and event monitoring person, event monitoring person's note of the first application
Volume is in the event publisher of the first application and while listening for the preset path on ZooKeeper；Second application memory exists
The event monitoring person of event publisher and event monitoring person, the second application are registered in the event publisher of the second application and simultaneously
Monitor the preset path on ZooKeeper；First application and second application are Distributed Application.
Specifically, the application of release module 41 first issues object event by the event publisher of the first application；Institute
The event monitoring person for stating the application of judgment module 42 first receives the object event automatically, judges whether the object event is collection
Group's event；If the update module 43 object event is cluster event, the object event is converted into preset data
Type updates the data of preset path on ZooKeeper, so that second based on the object event for being converted into preset data type
It is pre- from ZooKeeper when the data of preset path change in event monitoring person's AM automatic monitoring to ZooKeeper of application
If path obtains the data after variation, after the data after the variation that will acquire are converted into object event by preset data type, into
Enter local event process flow；Wherein, first application memory is in event publisher and event monitoring person, the thing of the first application
Part listener is registered in the event publisher of the first application and while listening for the preset path on ZooKeeper；Described second
For application memory in event publisher and event monitoring person, the event monitoring person of the second application is registered in the event publication of the second application
Person is upper and while listening for the preset path on ZooKeeper；First application and second application are Distributed Application.
In a particular application, the preset data type can be byte arrays.
In a particular application, for example, the upper preset path of ZooKeeper can on ZooKeeper /event/
The path example.
It is understood that ZooKeeper is a distributed application program coordination service system, it can be distribution
Using offer Consistency service.Multiple ZooKeeper examples can form cluster, to provide High Availabitity service.The present embodiment
In ZooKeeper can be a ZooKeeper, be also possible to the ZooKeeper cluster of multiple ZooKeeper composition, this
Embodiment is not limited.
It is understood that the Consistency service that the present embodiment described device utilizes ZooKeeper to provide, provides a kind of logical
The distributed event informing mechanism for being with, lightweight, unpacking, Distributed Application can be to using local event notification mechanism one
Sample handles the publication and consumption of distributed event.
Distributed event provided in an embodiment of the present invention based on ZooKeeper notifies device, can be based on ZooKeeper
The notice for realizing distributed event does not have to concern bottom compared with the voluntarily realization distributed event informing mechanism of the prior art
Processing can be supplied to user and unpack i.e. compared with the prior art is based on messaging bus realization distributed event informing mechanism
Simplicity.
Further, on the basis of the above embodiments, object event described in the present embodiment can be by a four-tuple table
Show:<type, timestamp, payload, cluster identity>；
Wherein, type indicates the type of object event, can be 32 without symbol by business self-defining and explanation, data type
Number integer；Timestamp indicates that the time at moment occurs for object event, can obtain the current time in system for generating moment time automatically,
Data type can be 64 signless integers；Payload indicates the effective information that object event carries, and can be specified by business
And explanation, data type are object type；Cluster identity indicates whether object event needs to issue to cluster, for example, can use <
Cluster>attribute indicates cluster identity, if<cluster>attribute is<true>, expression object event is cluster event, if<
Cluster>attribute is<fasle>, and expression object event is local event, and data type is Boolean type；
Correspondingly, judge whether the object event is cluster event in the judgment module 42, may include: basis
The cluster identity of the object event judges whether the object event is cluster event.
Further, on the basis of the above embodiments, the present embodiment described device can also include not shown in the figure:
Local event processing module, for after judging whether the object event is cluster event, if the target
Event is not cluster event, then the object event is local event, into local event process flow.
Distributed event provided in an embodiment of the present invention based on ZooKeeper notifies device, can be based on ZooKeeper
The notice for realizing distributed event does not have to concern bottom compared with the voluntarily realization distributed event informing mechanism of the prior art
Processing can be supplied to user and unpack i.e. compared with the prior art is based on messaging bus realization distributed event informing mechanism
Simplicity.
Distributed event provided in an embodiment of the present invention based on ZooKeeper notifies device, can be used for executing aforementioned
The technical solution of embodiment of the method shown in Fig. 1, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Fig. 5 show another embodiment of the present invention provides a kind of distributed event based on ZooKeeper notify device
Structural schematic diagram, as shown in figure 5, the distributed event based on ZooKeeper of the present embodiment notifies device, comprising: obtain
Module 51, conversion module 52 and entrance module 53；Wherein:
The acquisition module 51, if presetting road in the event monitoring person's AM automatic monitoring to ZooKeeper applied for second
The data of diameter change, then preset path obtains the data after variation from ZooKeeper；
The conversion module 52, the data after variation for will acquire are converted into object event by preset data type；
It is described to enter module 53, for based on the object event being converted into, into local event process flow；
Wherein, second application memory is in event publisher and event monitoring person, event monitoring person's note of the second application
Volume is in the event publisher of the second application and while listening for the preset path on ZooKeeper.
Specifically, if described obtain is preset in event monitoring person's AM automatic monitoring to ZooKeeper that module 51 second is applied
The data in path change, then preset path obtains the data after variation from ZooKeeper；The conversion module 52 will obtain
Data after the variation taken are converted into object event by preset data type；It is described into module 53 based on the target thing being converted into
Part, into local event process flow；Wherein, second application memory is answered in event publisher and event monitoring person, second
Event monitoring person is registered in the event publisher of the second application and while listening for the preset path on ZooKeeper.
It is understood that the module 51 that obtains is event publisher publication target of first application by the first application
After event, the event monitoring person of the first application receives the object event automatically, judges whether object event is cluster event, if
Object event is cluster event, then object event is converted into preset data type, based on the mesh for being converted into preset data type
It marks on event update ZooKeeper after the data of preset path, the second event monitoring person's AM automatic monitoring applied to ZooKeeper
The data of upper preset path change.Wherein, first application memory is answered in event publisher and event monitoring person, first
Event monitoring person is registered in the event publisher of the first application and while listening for the preset path on ZooKeeper；Institute
Stating the first application and second application is Distributed Application.
In a particular application, for example, the upper preset path of ZooKeeper can on ZooKeeper /event/
The path example.
In a particular application, the preset data type can be byte arrays.
It is understood that ZooKeeper is a distributed application program coordination service system, it can be distribution
Using offer Consistency service.Multiple ZooKeeper examples can form cluster, to provide High Availabitity service.The present embodiment
In ZooKeeper can be a ZooKeeper, be also possible to the ZooKeeper cluster of multiple ZooKeeper composition, this
Embodiment is not limited.
It is understood that the Consistency service that the present embodiment described device utilizes ZooKeeper to provide, provides a kind of logical
The distributed event informing mechanism for being with, lightweight, unpacking, Distributed Application can be to using local event notification mechanism one
Sample handles the publication and consumption of distributed event.
Distributed event provided in an embodiment of the present invention based on ZooKeeper notifies device, can be based on ZooKeeper
The notice for realizing distributed event does not have to concern bottom compared with the voluntarily realization distributed event informing mechanism of the prior art
Processing can be supplied to user and unpack i.e. compared with the prior art is based on messaging bus realization distributed event informing mechanism
Simplicity.
Further, on the basis of the above embodiments, object event described in the present embodiment can be by a four-tuple table
Show:<type, timestamp, payload, cluster identity>；
Wherein, wherein type indicates the type of object event, can be by business self-defining and explanation, data type 32
Position signless integer；Timestamp indicates that the time at moment occurs for object event, can obtain the system for generating moment time automatically and work as
Preceding time, data type can be 64 signless integers；Payload indicates the effective information that object event carries, can be by industry
Business is specified and explains, data type is object type；Cluster identity indicates whether object event needs to issue to cluster, for example,
Cluster identity can be indicated with<cluster>attribute, if<cluster>attribute is<true>, expression object event is cluster thing
Part, if<cluster>attribute is<fasle>, expression object event is local event, and data type is Boolean type；
Correspondingly, the data after the variation that the conversion module 52 will acquire are converted into target thing by preset data type
Part may include:
Data after the variation that will acquire are converted into object event by preset data type, by the cluster mark in object event
Know be revised as not needing the expression of the local event issued to cluster (such as can be by<cluster>attribute in object event
It is revised as<fasle>).
Distributed event provided in an embodiment of the present invention based on ZooKeeper notifies device, can be based on ZooKeeper
The notice for realizing distributed event does not have to concern bottom compared with the voluntarily realization distributed event informing mechanism of the prior art
Processing can be supplied to user and unpack i.e. compared with the prior art is based on messaging bus realization distributed event informing mechanism
Simplicity.
Distributed event provided in an embodiment of the present invention based on ZooKeeper notifies device, can be used for executing aforementioned
The technical solution of embodiment of the method shown in Fig. 3, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Fig. 6 shows the entity structure schematic diagram of a kind of electronic equipment of one embodiment of the invention offer, as shown in fig. 6,
The electronic equipment may include memory 602, processor 601 and be stored on memory 602 and can run on processor 601
Computer program, the step of processor 601 realizes the above method when executing described program, for example, the first application
Object event is issued by the event publisher of the first application；The event monitoring person of first application receives the target thing automatically
Part judges whether the object event is cluster event；If the object event is cluster event, the object event is turned
It changes preset data type into, based on the object event for being converted into preset data type, updates the number of preset path on ZooKeeper
According to, when so that the data of preset path changing in event monitoring person's AM automatic monitoring to ZooKeeper of the second application, from
The upper preset path of ZooKeeper obtains the data after variation, and the data after the variation that will acquire are converted by preset data type
After object event, into local event process flow；Wherein, first application memory is in event publisher and event monitoring
The event monitoring person of person, the first application are registered in the event publisher of the first application and while listening for pre- on ZooKeeper
If path；For second application memory in event publisher and event monitoring person, the event monitoring person of the second application is registered in the
In the event publisher of two applications and while listening for the preset path on ZooKeeper；First application and described second is answered
With for Distributed Application；Or, comprising: if preset path in event monitoring person's AM automatic monitoring to ZooKeeper of the second application
Data change, then from ZooKeeper preset path obtain variation after data；Data after the variation that will acquire by
Preset data type is converted into object event；Based on the object event being converted into, into local event process flow；Wherein, institute
The second application memory is stated in event publisher and event monitoring person, the event monitoring person of the second application is registered in the thing of the second application
Part publisher is upper and while listening for the preset path on ZooKeeper.
The embodiment of the present invention provides a kind of non-transient computer readable storage medium, is stored thereon with computer program, should
The step of above method is realized when computer program is executed by processor, for example, the thing that the first application passes through the first application
Part publisher issues object event；The event monitoring person of first application receives the object event automatically, judges the target thing
Whether part is cluster event；If the object event is cluster event, the object event is converted into preset data type,
Based on the object event for being converted into preset data type, the data of preset path on ZooKeeper are updated, so that the second application
When the data of preset path change in event monitoring person's AM automatic monitoring to ZooKeeper, the preset path from ZooKeeper
Data after obtaining variation, after the data after the variation that will acquire are converted into object event by preset data type, into local
Event handling process；Wherein, first application memory is in event publisher and event monitoring person, the event monitoring of the first application
Person is registered in the event publisher of the first application and while listening for the preset path on ZooKeeper；In second application
There are event publisher and event monitoring person, the event monitoring person of the second application is registered in the event publisher of the second application simultaneously
While listening for the preset path on ZooKeeper；First application and second application are Distributed Application；Alternatively, packet
It includes: if the data of preset path change in event monitoring person's AM automatic monitoring to ZooKeeper of the second application, from
The upper preset path of ZooKeeper obtains the data after variation；Data after the variation that will acquire are converted by preset data type
Object event；Based on the object event being converted into, into local event process flow；Wherein, second application memory is in thing
The event monitoring person of part publisher and event monitoring person, the second application are registered in the event publisher of the second application and supervise simultaneously
Listen the preset path on ZooKeeper.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of distributed event notification method based on ZooKeeper characterized by comprising
First application issues object event by the event publisher of the first application；
The event monitoring person of first application receives the object event automatically, judges whether the object event is cluster event；
If the object event is cluster event, the object event is converted into preset data type, it is pre- based on being converted into
If the object event of data type, the data of preset path on ZooKeeper are updated, so that the event monitoring person of the second application is certainly
When the dynamic data for listening to preset path on ZooKeeper change, after preset path obtains variation from ZooKeeper
Data, after the data after the variation that will acquire are converted into object event by preset data type, into local event process flow；
Wherein, first application memory is registered in event publisher and event monitoring person, the event monitoring person of the first application
In the event publisher of first application and while listening for the preset path on ZooKeeper；Second application memory is in event
Publisher and event monitoring person, second application event monitoring person be registered in the event publisher of the second application and while listening for
Preset path on ZooKeeper；First application and second application are Distributed Application.
2. the method according to claim 1, wherein the preset data type is byte arrays.
3. the method according to claim 1, wherein the object event is by a quadruple notation: < type,
Timestamp, payload, cluster identity >；
Wherein, type indicates the type of object event；Timestamp indicates that the time at moment occurs for object event；Payload indicates
The effective information that object event carries；Cluster identity indicates whether object event needs to issue to cluster；
Correspondingly, described to judge whether the object event is cluster event, comprising: according to the cluster mark of the object event
Know, judges whether the object event is cluster event.
4. the method according to claim 1, wherein the event monitoring person in the first application receives the mesh automatically
Mark event, after judging whether the object event is cluster event, the method also includes:
If the object event is not cluster event, the object event is local event, into local event process flow.
5. a kind of distributed event notification method based on ZooKeeper characterized by comprising
If the data of preset path change in event monitoring person's AM automatic monitoring to ZooKeeper of the second application, from
The upper preset path of ZooKeeper obtains the data after variation；
Data after the variation that will acquire are converted into object event by preset data type；
Based on the object event being converted into, into local event process flow；
Wherein, second application memory is registered in event publisher and event monitoring person, the event monitoring person of the second application
In the event publisher of second application and while listening for the preset path on ZooKeeper.
6. according to the method described in claim 5, it is characterized in that, the object event is by a quadruple notation: < type,
Timestamp, payload, cluster identity >；
Wherein, type indicates the type of object event；Timestamp indicates that the time at moment occurs for object event；Payload indicates
The effective information that object event carries；Cluster identity indicates whether object event needs to issue to cluster；
Correspondingly, the data after the variation that will acquire are converted into object event by preset data type, comprising:
Data after the variation that will acquire are converted into object event by preset data type, and the cluster identity in object event is repaired
It is changed to not need the expression for the local event issued to cluster.
7. a kind of distributed event based on ZooKeeper notifies device characterized by comprising
Release module issues object event by the event publisher of the first application for the first application；
Judgment module, the event monitoring person for the first application receive the object event automatically, judge that the object event is
No is cluster event；
The object event is converted into preset data type if being cluster event for the object event by update module,
Based on the object event for being converted into preset data type, the data of preset path on ZooKeeper are updated, so that the second application
When the data of preset path change in event monitoring person's AM automatic monitoring to ZooKeeper, the preset path from ZooKeeper
Data after obtaining variation, after the data after the variation that will acquire are converted into object event by preset data type, into local
Event handling process；
Wherein, first application memory is registered in event publisher and event monitoring person, the event monitoring person of the first application
In the event publisher of first application and while listening for the preset path on ZooKeeper；Second application memory is in event
Publisher and event monitoring person, second application event monitoring person be registered in the event publisher of the second application and while listening for
Preset path on ZooKeeper；First application and second application are Distributed Application.
8. a kind of distributed event based on ZooKeeper notifies device characterized by comprising
Module is obtained, if the data of preset path are sent out in event monitoring person's AM automatic monitoring to ZooKeeper of the second application
Changing, then preset path obtains the data after variation from ZooKeeper；
Conversion module, the data after variation for will acquire are converted into object event by preset data type；
Into module, for based on the object event being converted into, into local event process flow；
Wherein, second application memory is registered in event publisher and event monitoring person, the event monitoring person of the second application
In the event publisher of second application and while listening for the preset path on ZooKeeper.
9. a kind of electronic equipment including memory, processor and stores the calculating that can be run on a memory and on a processor
Machine program, which is characterized in that the processor is realized when executing described program such as any one of Claims 1-4 the method
Step or the processor are realized when executing described program such as the step of claim 5 or 6 the method.
10. a kind of non-transient computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer
Realize that the computer program is by processor such as the step of any one of Claims 1-4 the method when program is executed by processor
It realizes when execution such as the step of claim 5 or 6 the method.
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Application publication date: 20190614 |