CN102141922A - Micro kernel pluggable program application system and implementation method thereof - Google Patents
Micro kernel pluggable program application system and implementation method thereof Download PDFInfo
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Abstract
The invention discloses a micro kernel pluggable program application system and an implementation method thereof, which are used for solving the technical problems of low software updating efficiency and the high redundancy under the conventional software architecture mode. By the method, a friendly plug-in based software updating system is implemented; and during software updating, a plug-in unit is used as an updating logic unit, so the updating redundancy is reduced. By using an extendible plug-in structure, a plug-in description file is used for describing a dependence relation among plug-ins, so a micro kernel can nest and load plug-in resources according to a plug-in resource configuration file and the extendibility is strong. The micro kernel downloads at the first time and uploads a root plug-in comprising a key function according to the plug-in resource configuration file, and downloads and uploads a sub plug-in on which the root plug-in depends; and as the plug-in uploaded at the first time is used at the first time, the user experience is enhanced. By the invention, the judgment on the version of an automatic plug-in, the automatic downloading of the plug-in and dependence uploading procedure architecture based on the plug-in are realized so as to realize the system upgrading automation.
Description
Technical field
The present invention relates to the architecture design field of program language, relate in particular to a kind of micro-kernel plug-in unit program application system and its implementation.
Background technology
In the plug-in unit framework of software is realized, the realization example of comparative maturity is arranged, such as the realization of eclipse.The standard of eclipse mainly is based on the framework of java language, does not also set up standardized plug-in unit system in other Languages (such as C++) environment.
Traditional software systems are carried out software upgrading by network following several scheme:
1) directly downloading up-to-date installation kit installs.
2) software systems oneself detect redaction, and the prompting user's download is also installed.
3) on the basis of method 2, detect local version, report server, server provides the address of delta package, then increment AKU on the client downloads server and installation.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of micro-kernel plug-in unit program application system and its implementation, technical matters such as be used to solve existing program application architecture underaction, software upgrading efficient is low, redundance is big.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of implementation method of micro-kernel plug-in unit program application system comprises:
The service logic that program is used realizes based on plug-in unit, uses the plug-in resource configuration file to describe the resource information that plug-in unit relied on that the composition program is used, and when program is used operation, loads required plug-in unit by micro-kernel according to the plug-in resource configuration file.The resource information that described plug-in unit relied on comprises plugin information and resource information; Described plugin information comprises at least: the title of plug-in unit, plug-in unit place dynamic link library, plug-in unit sign; Described resource information comprises the resource file title at least.
Further, when described program application realizes based on a plurality of plug-in units, described plug-in resource configuration file also is used to describe the dependence between the plug-in unit, described plugin information also comprises the subboard information that described plug-in unit relies on, described micro-kernel loads the upper strata plug-in unit earlier, the back loads subboard, and the plug-in unit that loads provides service earlier earlier.
Further, described micro-kernel is before foundation plug-in resource configuration file loading of plug-in, download earlier the plug-in resource configuration file of latest edition from server end, and the resource that is relied on from the server end download plug-in according to the plug-in resource configuration file of described latest edition.Preferably, described micro-kernel is before loading of plug-in, obtain the latest edition this shop of current plug-in resource configuration file earlier from server end, when judging that according to described version number local plug-in resource configuration file is not latest edition, download the plug-in resource configuration file of latest edition again from server end, and according to the plug-in resource configuration file of the described latest edition latest edition from server end resource that download plug-in relies on.
Based on said method, the present invention also proposes a kind of micro-kernel plug-in unit program application system, comprising:
The plug-in resource configuration file is used to describe the resource information that plug-in unit relied on that the composition program is used; The resource information that described plug-in unit relied on comprises plugin information and resource information; Described plugin information comprises at least: the title of plug-in unit, plug-in unit place dynamic link library, plug-in unit sign; Described resource information comprises the resource file title at least.
Micro-kernel is used for loading the service logic of the plug-in unit of composition program application with the application of realization program according to the plug-in resource configuration file.
Further, when described application program realizes based on a plurality of plug-in units, described plug-in resource configuration file also is used to describe the relation between the plug-in unit, described plugin information also comprises the subboard information that described plug-in unit relies on, described micro-kernel loads the upper strata plug-in unit earlier, the back loads subboard, and the plug-in unit that loads provides service earlier earlier.
Further, described system also comprises:
The resource downloading server is used for providing according to the download request of micro-kernel the download of plug-in resource configuration file and resource that plug-in unit relies on;
Described micro-kernel comprises resource downloading assembly and plug-in unit loader;
The resource downloading assembly is used for the request according to the plug-in unit loader, the resource that is relied on from resource downloading downloaded up-to-date plug-in resource configuration file and plug-in unit;
The plug-in unit loader is used to resolve the plug-in resource configuration file, and according to plug-in resource configuration file loading of plug-in.
Further, described system also comprises:
The plug-in version Control Server is used to control the version number of plug-in resource configuration file;
Described micro-kernel also comprises: the plug-in version Control Component, be used for sending the version querying request to the plug-in version Control Server according to the request of plug-in unit loader, obtain the plug-in resource configuration file version number of latest edition, when the version of the plug-in resource configuration file of this locality was not latest edition, described micro-kernel request resource download component was downloaded up-to-date plug-in resource configuration file.
The present invention has realized a close friend's the software update system based on plug-in unit, during software upgrading be with the plug-in unit unit as upgrading logical block, reduced upgrade redundant.Use extendible dongle configuration, describe dependence between the plug-in unit by the plug-in resource description document, micro-kernel can be according to the nested loading of plug-in resource of plug-in resource configuration file, and extendability is very strong, has realized good system architecture.Micro-kernel is judged plug-in version, download plug-in resource automatically when loading of plug-in, realized the robotization of system upgrade, need not the user assist.
Description of drawings
Fig. 1 is the program updating system structural drawing that the present invention is based on plug-in unit;
Fig. 2 is the process flow diagram that the present invention is based on the program updating system executive routine renewal of plug-in unit;
Fig. 3 loads process flow diagram for the plug-in unit that the present invention loads subboard.
Embodiment
Basic thought of the present invention is: the service logic that program is used realizes based on plug-in unit, use the plug-in resource configuration file to describe the resource information that plug-in unit relied on that the composition program is used, when program is used operation, load required plug-in unit according to the plug-in resource configuration file by micro-kernel.In addition in order to guarantee that the program applied version is up-to-date, described micro-kernel is when foundation plug-in resource configuration file loading of plug-in, at first download the plug-in resource configuration file of latest edition, and download the resource that this plug-in unit relies on from server end according to the plug-in resource configuration file of latest edition from server end.When the program application realizes based on a plurality of plug-in units, described plug-in resource configuration file also is used to describe the dependence between the plug-in unit, a plug-in unit also can be dependent on one or more subboards, described micro-kernel loads the upper strata plug-in unit earlier, and the back loads subboard, and the plug-in unit that loads provides service earlier earlier, provide service behind the plug-in unit that the back loads, whenever, load successfully service that the plug-in unit user can use this plug-in unit to provide, reduce period of reservation of number, improved user experience.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 1 is the program application system structural drawing that the present invention is based on the micro-kernel plug-in unitization, and this system comprises: program application, plug-in version Control Server, resource downloading server.
The plug-in version Control Server, be used to control the version of plug-in resource configuration file, in the plug-in version Control Server, store the latest edition this shop of the plug-in resource configuration file of current each plug-in unit correspondence, described plug-in resource configuration file is used to describe the resource that plug-in unit relies on, in the present invention's one specific embodiment, the plug-in resource configuration file is corresponding with personalized logic, a plug-in resource configuration file is described the resource that a kind of personalized logic relies on, and described resource comprises dynamic link library, multimedia support file etc.
The resource downloading server is used to provide the download of plug-in resource configuration file and resource that plug-in unit relies on;
Micro-kernel is program key issue in application module, is used for loading required plug-in unit according to the plug-in resource configuration file; Also be used for sending the version querying request to the plug-in version Control Server, the latest edition this shop of the plug-in resource configuration file that returns according to the plug-in version Control Server judges whether local plug-in version is up-to-date, if not it is up-to-date, then send download plug-in resource distribution file request to the resource downloading server, after receiving the up-to-date plug-in resource configuration file that the resource downloading server returns, it is resolved the indication resource that plug-in unit relied on from resource downloading downloaded plug-in resource configuration file.
Described micro-kernel comprises: plug-in unit loader, plug-in version Control Component, resource downloading assembly;
The plug-in unit loader is used for according to plug-in resource configuration file loading of plug-in; Also be used for when the micro-kernel initial launch version to plug-in version Control Component query plugin resource distribution file; Version number with local plug-in resource configuration file after the version number of the up-to-date plug-in resource configuration file that obtains plug-in version Control Component feedback compares, if local plug-in version has been a latest edition, then directly load, otherwise obtain the download address of up-to-date plug-in resource configuration file according to presetting rule, the request resource download component is downloaded corresponding plug-in resource configuration file, also can obtain after the download address of plug-in resource configuration file plug-in resource configuration file from resource downloading downloaded correspondence according to presetting rule by the resource downloading assembly; The plug-in unit that described micro-kernel loaded can be one or more; The plug-in unit loader also is responsible for it is resolved after obtaining up-to-date plug-in resource configuration file, obtains resource identification and/or resource address that plug-in unit relied on, and the request resource download component is downloaded corresponding resource then.
The plug-in version Control Component is used for initiating the version querying request to the plug-in version Control Server, after the response that obtains the plug-in version Control Server Query Result is fed back to the plug-in unit loader;
The resource downloading assembly is used for the request according to the plug-in unit loader, the resource file that is relied on from resource downloading downloaded plug-in resource configuration file and plug-in unit.
Provide a kind of micro-kernel plug-in unit program of simplification to use in another specific embodiment of the present invention, this program is used and is only comprised the resource that plug-in resource configuration file, plug-in unit are relied on, the download logic that does not also comprise plug-in resource configuration file and resource that plug-in unit relies in the micro-kernel, give tacit consent to above-mentioned file and all downloaded to this locality, then micro-kernel can directly load.In this simplified structure, micro-kernel only comprises the plug-in unit loader, when program is used operation, loads required plug-in unit by micro-kernel according to the plug-in resource configuration file that reads from this locality.
Alternatively, in another specific embodiment of the present invention, only comprise micro-kernel and resource downloading server, micro-kernel is when loading of plug-in, according to the rule that presets, obtain the download address of corresponding plug-in resource configuration file according to plug-in unit sign and/or name of product, directly fixing download address is downloaded up-to-date plug-in resource configuration file to the resource downloading server, thereby guarantees all to use up-to-date version configuration at every turn.Correspondingly, in micro-kernel, also only need comprise plug-in unit loader and resource downloading assembly, when micro-kernel moves, directly the request resource download component is downloaded up-to-date plug-in resource configuration file from Resource Server, saved the step of carrying out the version comparison by the plug-in version Control Component, thereby when having guaranteed each run, load operating all be up-to-date plug-in version.
Fig. 2 is the process flow diagram that the present invention is based on the program updating system executive routine renewal of plug-in unit, and concrete steps are as follows:
Step 201: after micro-kernel started operation, the plug-in unit loader was to plug-in version Control Component request plug-in version;
Step 202: the plug-in version Control Component sends the plug-in version inquiry request message to the plug-in version Control Server, obtains the version of plug-in unit; Carry information such as plug-in unit sign, name of product in the request message, in the present invention's one specific embodiment, the corresponding a kind of personalized logic of plug-in unit is carried out secondary classification by name of product to this package types;
Step 203: the plug-in version Control Component obtains after the plug-in version success plug-in version that will obtain and number sends to the plug-in unit loader;
Step 204: the plug-in unit loader is according to the rule of resource downloading server commitment plug-in version number being mapped as the download address of plug-in resource configuration file, the plug-in resource configuration file of request resource download component download plug-in correspondence;
Step 205: the resource downloading assembly is from the resource downloading downloaded plug-in resource configuration file corresponding with plug-in version;
Step 206: the resource downloading assembly sends to the plug-in unit loader with the plug-in resource configuration file of downloading;
Step 207: the plug-in unit loader is resolved the plug-in resource configuration file, information such as the sign of the acquisition resource that plug-in unit relied on, download address; Plug-in unit loader request resource download component is downloaded corresponding resource file;
Step 208: the resource downloading assembly is from resource downloading downloaded resource file;
Step 209: the resource downloading assembly feeds back to the plug-in unit loader with the resource file of downloading, and the plug-in unit loader loads described resource.
Plug-in resource configuration file among the present invention is used to describe the resource information that plug-in unit relied on that the composition program is used, and the resource information that plug-in unit relied on comprises plugin information and resource information; Described plugin information comprises at least: the title of plug-in unit, plug-in unit place dynamic link library, plug-in unit sign etc.; Described resource information comprises the resource file title at least.In the present invention's one specific embodiment, the plug-in resource configuration file uses XML (ExtensibleMarkup Language, extend markup language) resource of describing plug-in unit and being relied on, the attribute of plug-in unit itself not only can be described by the XML language, but also the dependence between can structurized description plug-in unit, responsible other subboard of plug-in unit among the present invention and existing.Below adopt the example of the plug-in resource configuration file of XML language for the present invention:
<?xml?version=″1.0″standalone=″yes″?>
<PluginXML?Version=″1″>
<Plugin?Name=″flashenginepreinitializer″LibraryName=″FlashEngine.dll″
ObjectID=″0X00000010″>
<PrivateConfig>$flashversionlowlimited$[0X09000000],
$flashocxpackagepath$[flashengine\defaultflashcontrol.zip]
</PrivateConfig>
<Res>
<Item?Priority=″2″DownloadType=″KernelZIP″
FILE=″FlashEngine.zip″Hash=″″Version=″1″size=″″/>
</Res>
<Children>
<Plugin?Name=″flashengine″LibraryName=″FlashEngine.dll″
ObjectID=″0X0F013001″>
<Children>
<Plugin?Name=″qqpetagent″LibraryName=″QQPetAgent.dll″
ObjectID=″0x00000001″>
<Res>
<Item?Priority=″2″DownloadType=″KemelZIP″
FILE=″QQPetAgentMain.zip″Hash=″″Version=″1″size=″″/>
</Res>
</Plugin>
</Children>
</Plugin>
</Children>
</Plugin>
</PluginXML>
The name of the Name attribute definition plug-in unit in the Plugin label, the storehouse at LibraryName attribute definition plug-in unit place, the sign ID of ObjectID attribute definition plug-in unit in the storehouse; The resource file that Res tag entry definition plug-in unit relies on needed to download the defined resource of Item label that is ready in the Res label before creating plug-in unit; Can nested definition subboard in the Children label, after finishing, the initialization of this plug-in unit can load subboard, and this has reacted loading relation and dependence between the plug-in unit; The PrivateConfig label is used to define some configurations of plug-in unit.
Fig. 3 loads process flow diagram for the plug-in unit that the present invention loads subboard, in order to have versatility, the loading flow process of the subboard under this flow example root plug-in unit and the root plug-in unit, the root plug-in unit belongs to a certain upper strata plug-in unit, a plug-in unit may have a plurality of fraternal plug-in units with layer, also can have a plurality of subboards.The micro-kernel of program client is according to the dependence between the described plug-in unit of plug-in resource configuration file, the download of nested execution root plug-in unit and resource that subboard relies on thereof, and after finishing, plug-in resource download in upper strata at first loads the upper strata plug-in unit, the plug-in unit that loads provides service earlier earlier, has realized the program architecture of lazy loading.Subboard loading flow process is as follows:
Step 301: be resolved to when comprising subboard in the plug-in resource configuration file beginning subboard loading procedure at the plug-in unit loader; At first plug-in unit loader request resource download component is downloaded the resource that the root plug-in unit of current level is relied on;
Step 302: carry out the pre-initialize and the initialization of root plug-in unit;
The pre-initialize of plug-in object is not necessary, but pre-initialize can remind the plug-in unit initialization to prepare necessary service interface, is convenient to the brotgher of node and uses, and can use factroy to create subobject in this method.
Step 303: the root plug-in unit is tied to upper strata father's plug-in unit, is about to the pointer related with father's plug-in unit (can comprise a plurality of subboards simultaneously) of root plug-in unit set in same level;
Step 304: when being resolved to the root plug-in unit when also comprising subboard, by flow process with the interface start-up loading subboard of subboard;
Step 305: plug-in unit loader request resource download component is downloaded the resource of the subboard x of root plug-in unit;
Step 306: initialization and pre-initialize subboard x;
Step 307: subboard x is tied on the root plug-in unit;
Step 308: if subboard x also relies on down the subboard of one deck, the loading flow process of the nested execution subboard of plug-in unit loader then.If a plurality of subboards are arranged under the same level, the execution in step that then circulates 304 is to step 308.
The present invention has realized traversal and has sought the service interface of plug-in unit, the method of concrete traversal plug-in unit and searching plug-in unit is: plug-in unit initialization function can obtain the father node pointer when being called, after plug-in unit loads child node, binding subboard function is called and can obtains the pointer interface IChildren of subboard node, can realize all plug-in unit traversals by interface like this.Plug-in unit externally provides interface service by plug-in unit query function (QueryInterface), also can directly inherit in IPlugin, but a plug-in unit is merely able to provide a service interface in the IPlugin mode.
In the present invention's one specific embodiment, interface is created and dynamic link library (dll) Governance framework is realized based on object factory (factory) pattern, comprises three methods, is responsible for creating object respectively, destroy object and replace old dll with the new dll of registration, plug-in unit of the present invention is contained in the dynamic link library.
Creating the object step is:
(1) the calling system storehouse is loaded function (Loadlibrary) and is loaded dll;
(2) obtain the function (CreateObject) of creating object, this function definition is in dll;
(3) call the CreateObject function, import the object identity (dwObjectID) of appointment into, create appointed object;
(4) call the method SetFactory that creates in the object factory pointer is passed to the object of establishment, make it to use the method for factory.
System need allow factory create interface in the dll file when using object among the dll, if and some dll upgrade, and filename changes, and relies on this filename and creates the storehouse of some interfaces and also need to recompilate, and therefore also just needs issue again.The present invention comprises a new dll register method Re gisterNewLibrary in Governance framework, this method makes that being relied on dll recompilates, and filename changes the back under the constant situation of interface, the dll that relies on it need not to recompilate, thereby reduced the storehouse of recompilating, reduced the cost of system update.
Destroy the object step:
(1) allocating object Finalize function, notify object are done and are analysed the preceding processing of structure;
(2) if analyse the then Free method of direct allocating object of structure synchronously, analyse the structure object;
(3) if the asynchronous structure of analysing then in the Free of next message circulation allocating object method, is analysed the structure object.
Plug-in unit issue flow process of the present invention is:
(1) realizes the IPlugin interface, generate the library file that comprises plug-in unit;
(2) for after the library file name, library file is put into the resource downloading server;
(3) resource parameters that plug-in unit is relied on comprises title, attribute, address etc., adds the plug-in resource configuration file to, forms new plug-in resource configuration file;
(4) version number of plug-in version on the upgrading plug-in version Control Server number or plug-in resource configuration file.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. the implementation method of a micro-kernel plug-in unit program application system is characterized in that, comprising:
The service logic that program is used realizes based on plug-in unit, uses the plug-in resource configuration file to describe the resource information that plug-in unit relied on that the composition program is used, and when program is used operation, loads required plug-in unit by micro-kernel according to the plug-in resource configuration file.
2. method according to claim 1 is characterized in that the resource information that described plug-in unit relied on comprises plugin information and resource information; Described plugin information comprises at least: the title of plug-in unit, plug-in unit place dynamic link library, plug-in unit sign; Described resource information comprises the resource file title at least.
3. method according to claim 1, it is characterized in that, when described program application realizes based on a plurality of plug-in units, described plug-in resource configuration file also is used to describe the dependence between the plug-in unit, described plugin information also comprises the subboard information that described plug-in unit relies on, described micro-kernel loads the upper strata plug-in unit earlier, and the back loads subboard, and the plug-in unit that loads provides service earlier earlier.
4. method according to claim 3, it is characterized in that, described micro-kernel is before foundation plug-in resource configuration file loading of plug-in, download earlier the plug-in resource configuration file of latest edition from server end, and the resource that is relied on from the server end download plug-in according to the plug-in resource configuration file of described latest edition.
5. method according to claim 3, it is characterized in that, described micro-kernel is before loading of plug-in, obtain the latest edition this shop of current plug-in resource configuration file earlier from server end, when judging that according to described version number local plug-in resource configuration file is not latest edition, download the plug-in resource configuration file of latest edition again from server end, and according to the plug-in resource configuration file of the described latest edition latest edition from server end resource that download plug-in relies on.
6. a micro-kernel plug-in unit program application system is characterized in that, comprising:
The plug-in resource configuration file is used to describe the resource information that plug-in unit relied on that the composition program is used;
Micro-kernel is used for loading the service logic of the plug-in unit of composition program application with the application of realization program according to the plug-in resource configuration file.
7. system according to claim 6 is characterized in that the resource information that described plug-in unit relied on comprises plugin information and resource information; Described plugin information comprises at least: the title of plug-in unit, plug-in unit place dynamic link library, plug-in unit sign; Described resource information comprises the resource file title at least.
8. system according to claim 7, it is characterized in that, when described application program realizes based on a plurality of plug-in units, described plug-in resource configuration file also is used to describe the relation between the plug-in unit, described plugin information also comprises the subboard information that described plug-in unit relies on, described micro-kernel loads the upper strata plug-in unit earlier, and the back loads subboard, and the plug-in unit that loads provides service earlier earlier.
9. system according to claim 6 is characterized in that, described system also comprises:
The resource downloading server is used for providing according to the download request of micro-kernel the download of plug-in resource configuration file and resource that plug-in unit relies on;
Described micro-kernel comprises resource downloading assembly and plug-in unit loader;
The resource downloading assembly is used for the request according to the plug-in unit loader, the resource that is relied on from resource downloading downloaded up-to-date plug-in resource configuration file and plug-in unit;
The plug-in unit loader is used to resolve the plug-in resource configuration file, and according to plug-in resource configuration file loading of plug-in.
10. system according to claim 9 is characterized in that, described system also comprises:
The plug-in version Control Server is used to control the version number of plug-in resource configuration file;
Described micro-kernel also comprises: the plug-in version Control Component, be used for sending the version querying request to the plug-in version Control Server according to the request of plug-in unit loader, obtain the plug-in resource configuration file version number of latest edition, when the version of the plug-in resource configuration file of this locality was not latest edition, described micro-kernel request resource download component was downloaded up-to-date plug-in resource configuration file.
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