CN101937353B - Method and device for deploying and loading plug-in unit - Google Patents

Method and device for deploying and loading plug-in unit Download PDF

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Publication number
CN101937353B
CN101937353B CN201010290022.8A CN201010290022A CN101937353B CN 101937353 B CN101937353 B CN 101937353B CN 201010290022 A CN201010290022 A CN 201010290022A CN 101937353 B CN101937353 B CN 101937353B
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plug
unit
interface
module
extension point
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CN101937353A (en
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张新平
祝继洪
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ZTE Corp
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ZTE Corp
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Publication of CN101937353A publication Critical patent/CN101937353A/en
Priority to PCT/CN2011/075394 priority patent/WO2012037818A1/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44Arrangements for executing specific programs
    • G06F9/445Program loading or initiating
    • G06F9/44521Dynamic linking or loading; Link editing at or after load time, e.g. Java class loading
    • G06F9/44526Plug-ins; Add-ons

Abstract

The invention discloses a method and a device for deploying and loading plug-in units. The method comprises the following steps of: grouping plug-in units to be loaded; establishing a plug-in deployment file for deploying processes to load the grouped plug-in units; calculating and acquiring a plug-in unit dependence tree according to a dependence relation between the plug-in deployment file and the plug-in unit groups by a deployment file analysis module; acquiring process names of the processes by a program entry module and starting the process; and loading the plug-in units by the processes according to the plug-in unit dependence tree by a plug-in loading module. The invention loads the plug-in units in a grouping mode, supports distributed management, separates a process working directory and a program directory and realizes sharinges the program file by the processes with different functions.

Description

Method and device that a kind of plug-in unit is disposed and loaded
Technical field
The present invention relates to a kind of loading technique of software package, method and device that particularly a kind of plug-in unit is disposed and loaded.
Background technology
In large-scale software development, for convenient, software is carried out to Function Extension, realize the high cohesion in module, the low coupling of intermodule, for realizing the customizability of releasing software function, often adopt plug-in type exploitation, function package realizes in plug-in unit one by one, and these plug-in units have polytype, and the card i/f of following is different, and for the convenience on processing, these different interfaces can derive from same base interface.
In comprehensive webmaster, to manage various professional net products, and every kind of professional net product has a variety of equipment, the characteristic of specialty net is also had nothing in common with each other, and owing to there are differences between distinct device, a webmaster will be managed ten hundreds of equipment just needs multiple processes, distributed management.Because the function of the required deployment of different processes is also different, therefore provide a kind of software architecture to develop this large-scale webmaster, manage different professional nets, become the problem that we need to solve.
Summary of the invention
The object of the present invention is to provide a kind of plug-in unit to dispose and loading method, adopt the method that large software plug-in unit grouping management, process shared routing catalogue and distributed process plug-in part are disposed and plug-in unit loads, the problem that has solved large-scale webmaster and manage different specialty nets.
Another object of the present invention is to provide a kind of plug-in unit to dispose and charger, adopt the method that large software plug-in unit grouping management, process shared routing catalogue and distributed process plug-in part are disposed and plug-in unit loads, the problem that has solved large-scale webmaster and manage different specialty nets.
According to an aspect of the present invention, provide a kind of plug-in unit to dispose and loading method, comprised the following steps:
A, plug-in unit to be loaded is divided into groups;
B, foundation will load the plug-in unit deployment file of the plug-in unit group after grouping for deployment process;
C, deployment file analysis module calculate plug-in unit group dependent tree according to the dependence of plug-in unit deployment file and plug-in unit group;
D, program entry module are obtained the process name of process, startup process;
E, plug-in unit load-on module are pressed process loading of plug-in according to plug-in unit group dependent tree.
According to a further aspect in the invention, provide a kind of plug-in unit to dispose and charger, having comprised:
Plug-in unit grouping module, for being divided into plug-in unit to be loaded by type the plug-in unit group being suitable for by process loading;
Plug-in unit deployment module, wants the plug-in unit deployment file of loading of plug-in group for setting up deployment process;
Deployment file analysis module, for calculating plug-in unit group dependent tree according to the dependence of plug-in unit deployment file and plug-in unit group;
Program entry module, for obtaining the process name of described process, startup process;
Plug-in unit load-on module, for pressing process loading of plug-in according to plug-in unit group dependent tree.
Compared with prior art, beneficial effect of the present invention is: the present invention, by block form loading of plug-in, supports distributed management, and process working directory separates with program directory, has realized difference in functionality process shared routing file.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of plug-in unit deployment provided by the invention and loading method;
Fig. 2 is the structural representation of plug-in unit deployment provided by the invention and charger;
Fig. 3 is the Net Supervising Inserter grouping schematic diagram that the embodiment of the present invention provides;
Fig. 4 is the process initiation process that provides of the embodiment of the present invention and the schematic diagram of analyzing order line and obtain process title;
Fig. 5 is that the software that the embodiment of the present invention provides is issued bibliographic structure figure.
Embodiment
To a preferred embodiment of the present invention will be described in detail, should be appreciated that following illustrated preferred embodiment, only for description and interpretation the present invention, is not intended to limit the present invention below in conjunction with accompanying drawing.
Fig. 1 has shown that plug-in unit provided by the invention is disposed and the flow process signal of loading method, as shown in Figure 1:
Step S101, divides into groups plug-in unit to be loaded.
Before this, need define card i/f: the basic extension point interface of creation facilities program (CFP) and the plug-in unit of this basis extension point interface basis extension point interface instance function; Foundation is derived from the derivation interface of this basis extension point and the plug-in unit of this derivation interface and is derived from interface instance function; The description file format of definition plug-in unit: definition plug-in unit ID, card i/f type and plugin library title.
As plug-in unit product being divided into product bound cell PPU by product function, PPU is top layer group, under a PPU, there is multiple plug-in managements unit PMU, under PMU, there are multiple pin function group PMUFunction, under pin function group, have multiple plug-in units or data file, these pin function groups can have the plug-in unit of intersection and data file.
Step S102, sets up plug-in unit deployment file, the plug-in unit group after the grouping that will load in this file middle part administration process, and a process may have multiple deployment files, and process is by the union loading of plug-in of these files.
Step S103, deployment file analysis module calculates plug-in unit group dependent tree according to the dependence of plug-in unit deployment file and plug-in unit group.
Step S104, program entry module is obtained the process name of process, startup process by analyzing order line function.
In addition, program entry module need first create plug-in unit factor interface, then creates context interface, then resolves plug-in unit deployment file, attribute data file and plug-in unit group dependent tree.
Before this, need set up attribute data file, this file is to define some name-value pairs that process needs in startup or operational process, and these property files are layerings, can define as required multilayer.
Step S105, plug-in unit load-on module is pressed process loading of plug-in according to plug-in unit group dependent tree.Loading of plug-in has two kinds of modes: in process initiation process, load on-demand loading plug-in unit in some plug-in unit or operational process.
Fig. 2 is the structural representation of plug-in unit deployment provided by the invention and charger, as shown in Figure 2, this device comprises plug-in unit definition module, plug-in unit grouping module, plug-in unit deployment module, deployment file analysis module, program entry module, attribute data module and plug-in unit load-on module.
Wherein, plug-in unit definition module comprises that plug-in unit basis extension point definition unit, plug-in unit derive from interface definition unit and plug-in description file definition unit.
The example function of plug-in unit basis extension point definition unit creation facilities program (CFP) basis extension point interface and this basis extension point interface.
Plug-in unit derives from the foundation of interface definition unit and derives from the derivation interface of basic extension point interface and the example function of this derivation interface.
The description file format of plug-in description file definition unit definition plug-in unit, comprising: the type of plug-in unit ID, card i/f and plugin library title.
Plug-in unit grouping module is divided into plug-in unit to be loaded the plug-in unit group being suitable for by process loading.
Plug-in unit deployment module is set up deployment process and wants the plug-in unit deployment file of loading of plug-in group.
Deployment file analysis module calculates plug-in unit group dependent tree according to the dependence of plug-in unit deployment file and plug-in unit group.
Program entry module is obtained the process name of described process, startup process, and set up the plug-in unit factor interface of management plug-in unit basis extension point interface instance function and plug-in unit derivation interface instance function and set up the context interface of describing running environment, and resolve plug-in unit deployment file, attribute data file and plug-in unit group dependent tree.
The attribute data file of attribute data module definition process initiation and the required name-value pair of operation.
Plug-in unit load-on module is pressed process loading of plug-in according to plug-in unit group dependent tree.
Fig. 3 has shown the Net Supervising Inserter grouping signal that the embodiment of the present invention provides, as shown in Figure 3, top layer has bn.ppu, two PPU of uca.ppu, wherein under bn.ppu, there is bn-core-c.pmu, many PMU of bn-necommon-c.pmu and bn-res.pmu, multiple pin function group PMUFunction under each PMU, as wherein having two function group osf and emf under bn-res.pmu, respectively include some catalogues, and there is common catalogue common, with under the catalogue of common peer, be some data files, plug-in unit and description document, in dll at the same level, be wherein common dynamic base.
Fig. 4 has shown the process initiation process that the embodiment of the present invention provides and has analyzed the signal that order line is obtained process title, as shown in Figure 4, first program entry module creates plug-in unit factor interface, create again context interface, in contextual initialization plug-in unit function, create local system interface ILocalSystem, local system interface is responsible for analyzing and is disposed and load startup plug-in unit.Must there is an example for each process in plug-in unit factor interface IExtensionService, context interface IContext and ILocalSystem.
Fig. 5 has shown the software issue bibliographic structure that the embodiment of the present invention provides, as shown in Figure 5, under procs, it is program and data files, under works, be catalogue corresponding to some processes, under catalogue corresponding to process, there are some sub-directories, as log catalogue is used for depositing the daily record producing in operational process, and under deploy, be used for depositing plug-in unit deployment file and attribute data file.
Below in conjunction with Fig. 1~Fig. 3, the demand of united net management is described.
(1) requirement source
In united net management, the equipment of various product lines need to be managed in a webmaster, each product line has polytype equipment, the differing greatly of each equipment.In a webmaster, manage the equipment of multiple product lines, not only saving resource but also be convenient to unified management, in the situation that number of devices is huge, needs distributed management.
(2) development platform
Adaptive communication environ ACE (ADAPTIVE Communication Environment), compiler vc7 or gcc, support multiple operating systems such as win32, solaris and linux.
(3) realization of plug-in type exploitation
1, define basic extension point.
class IExtension {
public:
IExtension(const char*version=″V 1.0″);
virtual~IExtension(){}
virtual int Init(int argc,char*argv[]);
virtual int Finish();
virtual void SetVersion(const char*version);
virtual const char*GetVersion();
virtual void ProcessDebugCommand(std::string&cmd,::StringList&paras,std::ostream&os);
private:
_STD_string m_strVersion;
};
Init is according to process initiation parameter initialization plug-in unit.Finish is used for doing cleaning work before extension point is destroyed, as closes handle and releasing memory etc.GetVersion and SetVersion are used for arranging plug-in version.ProcessDebugCommand is a method of supporting that order line is adjusted, and similar basic function can add function as required.
Plug-in unit basis extension point example creates function IExtension*Create_Extension (const char*path, CProperties*properties) be that plug-in unit dynamic base is to unique derivative function, create the example of this plug-in unit basis extension point, path is the directory path at plug-in unit place, properties is the name-value pair of this plug-in unit attribute, and function returns to extension point pointer.
'. ' separating character string for the title of plug-in unit, as ican.context.localservice.log represents a plug-in unit id, ican.context.localservice represents it is a plug-in unit that ILocalService is corresponding, represent its subboard by the mode that plug-in unit id is added to expansion, as ican.context.localservice.log.xxplg represents the subboard of ican.context.localservice, this id is somewhat long, log can adopt another name mode to simplify plug-in unit id, as can be used as the another name of ican.context.localservice.log.
Plug-in description file xml document definition, defines the title of plug-in unit ID, version, corresponding dll etc. in file, also can arrange certain type must be loaded by his father's plug-in unit by subboard.
2, the Local or Remote of definition local service Provider Interface ILocalService, service interface IServant and IServant is acted on behalf of IService interface, these interfaces derive from from IExtension, these plug-in units have been realized the concrete function of webmaster, therefore these plug-in units quantitatively have a lot, can also define some other card i/fs if needed.Provide the main method of these three interfaces below:
2.1ILocalService provides service to this process module:
virtual void PreInit(IContext*ctx)
virtual IDefaultContext*GetCtx(void)
Wherein, PreInit is used for arranging context, and GetCtx is used for obtaining context.
2.2IServant provides service to this process or remote process, and service provides mainly and realizes by Get, Set:
virtual void PreInit(IContext*ctx)
virtual CMsg*Get(CMsg&msgbuf,CMsgHead&headinfo)
virtual void Set(CMsg&msgbuf,CMsgHead&headinfo)
PreInit is used for arranging context, and Get has response message to process function, and CMsg represents message, and headinfo represents the heading such as command code and user information, and Set is that nonreply message is processed function.
2.3 clients realize calling of Get to IServant and Set by IService, can judge that by IContext::HasServant whether servant is in this locality.
virtual void PreInit(IContext*ctx,const char*servantName)
virtual void SetServant(IIcanServant*servant)
virtual CMsg*Get(CMsg&msgbuf,CMsgHead&headinfo)
virtual void Set(CMsg&msgbuf,CMsgHead&headinfo)
PreInit is for the title servantName of context and corresponding IServant is set, and SetServant is for the title of corresponding IServant is set, and Get has response message to process function, and Set is that nonreply message is processed function.
3, the grouping of definition plug-in unit, is divided into multiple PPU by product function, and PPU is top layer group, under a PPU, has multiple PMU, under a PMU, has multiple PMUFunction.The corresponding catalogue of PPU, and a sub-directory under the corresponding PPU of PMU, a pin function group can contain multiple catalogues of PMU, has multiple plug-in units or data file under each catalogue, and these pin function groups may have intersection catalogue.In PMUFunction, also define the dependence to other function group.
4, definition procedure deployment is disposed definition in the file of process working directory, and this file can have multiple, disposes defined file and is used for defining which PMUFunction of this procedure deployment.
5, definition IContext and IExtensionService interface, these interfaces can derive from from IExtension.
The method of 5.1 definition IExtensionService:
virtual IExtension*CreateExtension(const char*extName,bool isSingleton);
virtual void DestroyExtension(IExtension*pcExtension)=0;
virtual StringList GetExtensions(const char*pcSubject)=0;
CreateExtension is according to whether creating in single routine mode the basic extension point example that is called extName.DestroyExtension destroys extension point.GetExtensions obtains all subboards of main body pcSubject, uses the part prefix of the plug-in unit ID that '. ' cut apart.
5.2IContext creates and moves the contextual method of plug-in unit in certain process:
virtual void PreInit(IExtensionService*)
virtual ILocalService*GetLocalService(const char*extName,const char*strpmufunc);
virtual IServant*GetServant(const char*extName,const char*strpmufunc);
virtual IService*GetService(const char*extName,const char*strpmufunc);
virtual IExtensionService*GetExtService();
virtual bool HasServant(const char*extName,const char*strpmufunc);
PreInit is used for arranging plug-in unit factory.GetLocalService obtains the ILocalService of the extName by name under pin function group strpmufunc, and strpmufunc is NULL, wherein, and all PMU that seek scope is this process.GetServant obtains the IServant of the extName by name under pin function group strpmufunc.GetService obtains the IService of the extName by name under pin function group strpmufunc.HasServant judges whether this process pin function group strpmufunc exists the IServant of extName by name.GetExtService obtains plug-in unit factory.
6, ILocalSystem derives from ILocalService, that this procedure deployment is analyzed and plug-in unit group analysis module, read the name-value pair in this Process Attributes data file, analyze which plug-in unit group of this procedure deployment and plug-in unit group dependent tree, dispose which function group PmuFunction and their dependent tree as long as analyze in the present embodiment, in dependent tree, leaf node has dependence to father node, then from root vertex layering to leaf node loading of plug-in, the plug-in unit under same PMUFunction can be by catalogue or successively loading sequence of plug-in unit name definition.Arrange certain principle and in the time that program starts, load some type plug-in, some type plug-in on-demand loading, loads the plug-in unit with IServant extension point as started in present embodiment time.
7, realize each interface function or plug-in unit above, releasing software.Plug-in unit and dll are placed under Procs catalogue by PPU, PMU sectional lists, in PMUFunction, contain those catalogues and plug-in unit, the corresponding xml description document of each function group, in Procs same level definition works catalogue, under works catalogue, be some process catalogues, deposit some data files relevant to process, as procedure deployment file and attribute data file etc.
8, program entry module is specified process title by the order line of program, knows the working directory of process by process title, and process inlet module can load different processes like this.Create IContext and IExtensionService, transmit process working directory to ILocalSystem, ILocalSystem is responsible for pressing disposing and loads the plug-in unit needing while startup, directly calls IContext on-demand loading plug-in unit when operation.
In addition, can make various possible changes or replacement according to the explanation of technical scheme of the present invention and embodiment, as IContext and IExtensionService merging, description document does not adopt xml form, basis extension point interface adds or reduces certain methods, or just realizes interface with structure and the function pointer of procedural language.
In sum, the present invention has following technique effect: 1, grouping management plug-in unit, and be convenient to large software plug-in unit is managed 2, can pass through document definition plug-in unit id and type.3, there is unified plug-in unit base interface, be convenient to create extension point.4, support distributed deployment.5, process working directory separates with program directory, is convenient to multiple process shared routing files.6, support process association attributes name-value pair, be convenient to the definition of process variable.7, owing to adopting object-oriented interface mechanism, there is very high abstract processing power.In addition, method itself is general, does not rely on specific operating system and specific object oriented language, even in structured language, also can realize this Plugin Mechanism.
Although above the present invention is had been described in detail, the invention is not restricted to this, those skilled in the art can carry out various amendments according to principle of the present invention.Therefore, all amendments of doing according to the principle of the invention, all should be understood to fall into protection scope of the present invention.

Claims (9)

1. plug-in unit is disposed and a loading method, it is characterized in that, comprises the following steps:
A, plug-in unit to be loaded is carried out to plug-in unit grouping by type, obtain being suitable for the plug-in unit group loading by process;
The plug-in unit deployment file of the described plug-in unit group that B, foundation will load for deployment process;
C, deployment file analysis module calculate plug-in unit group dependent tree according to the dependence of described plug-in unit deployment file and described plug-in unit group;
D, program entry module are obtained the process name of described process, startup process by analyzing order line function; And
E, after process initiation, plug-in unit load-on module calculates plug-in unit group dependent tree according to dependence based on described plug-in unit deployment file and described plug-in unit group, loads described plug-in unit group by described process.
2. a kind of plug-in unit according to claim 1 is disposed and loading method, it is characterized in that, before described steps A, further comprising the steps of:
Set up for adding plug-in unit and realize the basic extension point interface of basic function and the plug-in unit of described basic extension point interface basis extension point interface instance function;
Foundation is derived from and is derived from interface instance function in described basic extension point for managing the corresponding derivation interface of dissimilar plug-in unit and the plug-in unit of described derivation interface; And
Define the type of the interface of described plug-in unit.
3. a kind of plug-in unit according to claim 1 is disposed and loading method, it is characterized in that, before described step D, sets up the attribute data file for defining process initiation and the required name-value pair of operation.
4. a kind of plug-in unit according to claim 3 is disposed and loading method, it is characterized in that, between described step D and step e, further comprising the steps of:
Described program entry module is set up the plug-in unit factor interface that derives from interface instance function for managing described plug-in unit basis extension point interface instance function and described plug-in unit;
Described program entry module is set up the context interface for describing running environment; And
Plug-in unit deployment file, described attribute data file and described plug-in unit group dependent tree described in described program entry module parses.
5. plug-in unit is disposed and a charger, it is characterized in that, comprising:
Plug-in unit grouping module, for plug-in unit to be loaded is carried out to plug-in unit grouping by type, obtains being suitable for the plug-in unit group by process loading;
Plug-in unit deployment module, for setting up the plug-in unit deployment file of the described plug-in unit group that deployment process will load;
Deployment file analysis module, for calculating plug-in unit group dependent tree according to the dependence of described plug-in unit deployment file and described plug-in unit group;
Program entry module, for obtaining the process name of described process, startup process by analyzing order line function; And
Plug-in unit load-on module, for after process initiation, calculates plug-in unit group dependent tree according to the dependence based on described plug-in unit deployment file and described plug-in unit group, loads described plug-in unit group by described process.
6. a kind of plug-in unit according to claim 5 is disposed and charger, it is characterized in that, also comprises:
Plug-in unit definition module, for defining example function, the example function of described derivation interface and the type of described card i/f of plug-in unit basis extension point interface, derivation interface, described plug-in unit basis extension point interface.
7. a kind of plug-in unit according to claim 6 is disposed and charger, it is characterized in that, described plug-in unit definition unit comprises:
Plug-in unit basis extension point definition unit, realizes the basic extension point interface of basic function and the plug-in unit of described basic extension point interface basis extension point interface instance function for setting up interpolation plug-in unit;
Plug-in unit derives from interface definition unit, derives from interface instance function for setting up to derive from described basic extension point for managing the corresponding derivation interface of dissimilar plug-in unit and the plug-in unit of described derivation interface; And
Plug-in description file definition unit, for defining the type of interface of described plug-in unit.
8. a kind of plug-in unit according to claim 5 is disposed and charger, it is characterized in that, also comprises:
Attribute data module, for defining the attribute data file of process initiation and the required name-value pair of operation.
9. a kind of plug-in unit according to claim 8 is disposed and charger, it is characterized in that, described program entry module also derives from the plug-in unit factor interface of interface instance function for setting up the described plug-in unit basis extension point interface instance function of management and described plug-in unit; Set up the context interface of describing running environment; And resolve described plug-in unit deployment file, described attribute data file and described plug-in unit group dependent tree.
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