CN103701834A - Proxy based mobile cloud service access system and method - Google Patents
Proxy based mobile cloud service access system and method Download PDFInfo
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Abstract
The invention provides a proxy based mobile cloud service access system and method. An access proxy server is added between the conventional mobile equipment and cloud service to perform proxy to requests of a mobile equipment client or response of the cloud service. On one hand, the mobile equipment client requests the cloud service by the access proxy server, and transfers a part of processing process of the cloud service request to the access proxy server with abundant resource, in order to save resource consumption such as computation and storage of the mobile equipment. On the other hand, the cloud service responds the mobile equipment client through the access proxy server, and performs bridge connection conversion such as data exchange format to the response result by virtue of the access proxy server, so as to enable the mobile equipment with limited resource to access the cloud service.
Description
Technical field
The present invention relates to mobile cloud service applicating developing technology field, be specifically related to mobile cloud service access system and method based on agency.
Background technology
Current, mobile cloud service application can be divided into: the web application based on browser and local application two classes.The exploitation of applying for this locality is not (if done Special Statement, local application is refered in particular in mobile cloud service application herein), most mobile cloud service application developer can only utilize the service interface that cloud service provider provides to carry out cloud service access, and will return results on mobile device accordingly and deal with, represent.Compare with traditional PC, no matter mobile device is CPU disposal ability, memory size, battery capacity, or network communications capability, all has larger gap.In addition, existing most of cloud service interface is not for mobile device designs, thereby makes mobile cloud service application conventionally can bring larger mobile device resource consumption and wireless network bandwidth to take.
For the resource-constrained problem of mobile device, Ioana Giurgiu utilizes existing AlfredO technology and R-OSGi technology to realize a mobile cloud service application framework---AlfredO.This framework, by the dependence modeling between application modules, carries out optimization division on this basis; And automatically application is distributed on mobile device and high in the clouds and is carried out by different levels, the resource that realizes mobile device with this is expanded to cloud computing.The Xinwen Zhang in Samsung research center proposes a kind of flexible application model---Weblet, and it is divided into single application the member of a plurality of Weblet of being referred to as, and supports when Weblet moves to configure, and it is dynamically carried out beyond the clouds or on mobile device.In short supply and the instability problem for wireless network bandwidth, the Mahadev Satyanarayanan of Carnegie Mellon University is intended to by virtual machine technique, for mobile device provides the Cloudlet (Cloudlet can refer to individual server, data center or " the Micro Cloud " of the service of providing infrastructures) of the service of custom application fast, to set up WLAN (wireless local area network) at a high speed between mobile device and Cloudlet, to solve the problems such as wireless network is unstable, Bandwidth-Constrained.Based on this thought, the people such as M.Reza Rahimi and Mahadev Satyanarayanan expand the ability of Cloudlet in corresponding article, by adding Cloudlet intermediary layer to do to optimize with this access of cloud service to all levels between mobile device and cloud service.
Although scholars have been concerned about the problems such as mobile device inadequate resource, wireless network bandwidth in mobile cloud service application be limited, but they just hope the combination that realizes mobile device and cloud service by changing the model (as AlfredO, Weblet) of mobile cloud service application, lack the support of businessman.After all, the cloud service based on Web service remains main flow, and businessmans can not be ready to change easily own existing application model.Therefore, significant for the ability of lifting mobile device access cloud service by building a kind of mobile cloud service access system based on agency.There is no at present technical scheme ripe, that relate to the mobile cloud service access system based on agency, although it is that cloud service access is optimized that the people such as M.Reza Rahimi have also mentioned by agency in paper, it only limits to utilize local area network technology to improve the Bandwidth-Constrained of wireless network and unstable.
Summary of the invention
The invention provides a kind of mobile cloud service access system based on agency and method for solving mobile cloud service application mobile device resource and the limited problem of wireless network bandwidth, this system and method is without changing the model that mobile cloud service applies and having stability.
According to an aspect of the present invention, a kind of mobile cloud service access system based on agency is provided, described system comprises mobile device client and is deployed in the access proxy server between mobile device client and cloud service, wherein said access proxy server comprises PSIDL resolver, library, library manager, agency service queue and agency service actuator, wherein:
PSIDL resolver is for resolving the agency service description document that adopts PSIDL language description; Library is for storing the agency service description document from mobile device client upload; Library manager is for managing the agency service description document from mobile device client upload; Agency service queue is for the mobile device client-requested queue of maintenance access cloud service, and agency service actuator is for carrying out the agency service of mobile device client-requested;
Described mobile device client comprises that description document uploads interface and agency service calling interface, wherein:
Description document upload interface for by agency service description document from mobile device client upload to accessing proxy server; Agency service calling interface is for calling the agency service on access proxy server.
In one embodiment of the invention, described agency service actuator comprises agency service adapter and client requests constructor, wherein:
Agency service adapter is for carrying out adaptation to the agency service of mobile device client-requested, to find corresponding destination service; Client requests constructor is used for constructing the mobile device client-requested of cloud service, and completes the access to cloud service.
In one embodiment of the invention, described access proxy server also comprises response results optimizer, and this response results optimizer comprises that XML is to JSON transducer, for the Data Format Transform to cloud service response results.
In a further embodiment, described response results optimizer also comprises JSON form customizer, for the JSON form customization to cloud service response results.
The JSON form customization of cloud service response results in one example, comprises deleting and reinventing cloud service response results.
In one embodiment of the invention, described access proxy server also comprises service cache module, for buffer memory cloud service response results.
According to another aspect of the present invention, provide a kind of mobile cloud service access method of the mobile cloud service access system based on agency, the method comprises:
Step 1) the agency service calling interface, by mobile device client calls the agency service on access proxy server, comprising:
Step 1-1), the agency service adapter of access on proxy server carry out adaptation to the agency service of request in agency service queue, finds the agency service of request,
Step 1-2) by client requests constructor, construct corresponding cloud service client, complete the access of long-range cloud service together with agency service adapter and obtain cloud service response results;
Step 2), by agency service adapter, cloud service response results is returned to mobile device client.
In one embodiment of the invention, step 1) also comprise the steps: before
When mobile cloud service is applied in while starting in mobile device client, first to access proxy server, ask trial whether to exist to examine the agency service of request.When attempting unsuccessfully, from mobile device client, agency service description document is uploaded to the library of access proxy server, by library manager, drive PSIDL resolver to resolve to generate corresponding agency service to this agency service description document and realize, and this agency service is joined in agency service queue.
In one embodiment of the invention, step 1) also comprise:
Step 1-3), by agency service adapter, cloud service response results is returned to response results optimizer, by response results optimizer, cloud service response results form is optimized, finally the cloud service response results after optimizing is returned to agency service adapter, wherein, described cloud service response results form be optimized and comprised:
Step 1-3-1), the data format of cloud service response results is judged, XML form if, by XML, to JSON transducer, carry out the conversion of cloud service response results data format, if cloud service response results itself is JSON form, do not operate.
In a further embodiment, step 1-3) also comprise:
Step 1-3-2), by JSON form customizer, carry out JSON data and reset system.
In one example, by JSON form customizer, carrying out JSON data resets system and comprises and delete and reinvent.
In one embodiment of the invention, step 2) also comprise: by cloud service response results buffer memory to serving cache module.
In a further embodiment, step 1-1) also comprise the steps: before
Agency service adapter on access proxy server is found the agency service of request from service cache module, if preserve the agency service of this request in service cache module, access proxy server and will directly from service cache module, obtain cloud service response results skips steps 1-1).
The present invention has following beneficial effect:
(1) in access proxy server, dynamically generating agency service realizes for mobile device access, for mobile subscriber has saved wireless communication cost and mobile device resource consumption.
(2) by the bridge joint conversion of supported data transformat and the system that resets of data format, the high efficiency of transmission of wireless network and the fast resolving of mobile device have been realized.
Accompanying drawing explanation
Fig. 1 is the general frame figure of mobile cloud service access system based on agency according to an embodiment of the invention;
Fig. 2 is that access proxy server is realized class figure;
Fig. 3 be the agency service adapter of access in proxy server realize class figure;
Fig. 4 is that XML is to JSON transducer class figure;
Fig. 5 is JSON form customizer class figure;
Fig. 6 is data transmission format Optimizing Flow schematic diagram according to an embodiment of the invention;
Fig. 7 is the flow chart of mobile cloud service access method based on agency according to an embodiment of the invention;
Fig. 8 is the eBay agency service interface schematic diagram with PSIDL language description.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is illustrated.
According to one embodiment of the invention, the mobile cloud service access system based on agency is provided, figure+1 shows the general frame of this system.Wherein, between mobile device client and cloud service, dispose access proxy server, for optimizing the access of mobile device client to cloud service.This access proxy server mainly comprises five modules: PSIDL resolver, agency service queue, agency service actuator, library and library manager.Wherein, agency service actuator also comprises: agency service adapter and client requests constructor.To for above-mentioned module, be described respectively below.
The present invention uses PSIDL as agency service IDL, and it is a kind of self-defining, territory descriptive language of approaching natural language description, and its semantic description is as follows:
Described PSIDL resolver implementation method is as follows:
The agency service description document (being agency service assignment file) of describing for PSIDL has designed corresponding PSIDL resolver it has been resolved in access proxy server.Fig. 2 has described PSIDL resolver and has realized class figure, wherein in MashupServiceActionParse interface, defined respectively parseRequestParams, parseResponseParams and parseServiceAction operation, respectively to the service request parameter in agency service, result response parameter with and the concrete cloud service that comprises resolve.MashupTaskParsing class realizes this interface.Consider the extensibility in agency service content, ProxyServiceFactory class allows application developer to expand its subclass example as the factory class of agency service, but these subclasses all must realize the callRemoteSercives operation in ProxyService interface, as ProxyServiceImpl class, it mainly for be that the agency service that mode with API externally exposes the cloud service of service content realizes.By ProxyServiceImpl object, can complete the encapsulation to remote service, thereby shield the bottom details to remote service API Access.
Described agency service actuator is for carrying out the agency service of mobile device client-requested, section processes process to cloud service request is transferred to the access proxy server that resource is more abundant and complete, thus the resource consumptions such as the calculating of saving mobile device client, storage.According to one embodiment of present invention, it comprises agency service adapter and client requests constructor.Wherein, agency service adapter is for carrying out adaptation to the agency service of mobile device client-requested, to find corresponding destination service.Client requests constructor is used for constructing cloud service client requests, and both collaborative works complete the access to cloud service.
Wherein, the implementation method of described agency service adapter is as follows:
What Fig. 3 had described agency service adapter (ProxyServiceAdapter) realizes class figure.Wherein, the findServiceByName of Adapter interface operation is for finding corresponding agency service to realize (ProxyServiceImpl) according to agency service title from agency service queue (ProxyServiceQueue).Integrator interface definition for service response result being carried out to the integrateData operation of polymerization.Wherein, JSONIntegrator has realized the polymerization of the response results of JSON form, and XMLIntegrator has realized the polymerization of the response results of XML form.Service execution device (MashupServiceExecutor) is realized the operation of Executor interface definition, wherein, findProxyService realizes agency service to comprising in agency service queue and realizes and searching by calling the findServiceByName method of ProxyServiceAdapter; ExecuteProxyServiceSync realizes the mode agents service with synchronization request; ExecuteProxyServiceAsyn realizes the mode agents service with Asynchronous Request; The result of agency service response will complete corresponding polymerization by integrateResults, and return to this result to mobile client.
Fig. 2 has also described the realization of described client requests constructor, wherein, based on RESTlet framework access proxy server, has defined three class resources:
1) description document resource uploading (MashupTaskUploadingResource) is uploaded interface for externally exposing agency service description document, and its corresponding URI is "/MashupTaskUploading ".The concrete function of this object is realized and being completed by MashupTaskUploadImpl object broker.
2) agency service is called resource (MashupTaskInvokingResource), for externally exposing agency service calling interface.Its corresponding URI is "/MashupTaskInvoking/{service_name}/{ params} ".The concrete function of this object is realized and will be completed by MashupTaskInvokeImpl object broker.Wherein, service_name parameter is for locating concrete agency service, and params parameter is used for the input parameter of this agency service to carry out assignment.
3) agency service management resource (MashupTaskManagementResource) is in order to external exposure agency service management interface.Its corresponding URI is "/MashupTaskManagement/{service_name} ".The concrete function of this object is realized and will be completed by MashupTaskManageImpl object broker.Wherein, service_name parameter will be for the agency service of locating specifically (delete) to be deleted, renewal (update) and checking (look).
In the mobile cloud service access system based on agency provided by the invention, PSIDL resolver and agency service actuator are combined with to realize and on access proxy server, dynamically generate agency service, it is on the one hand for mobile device client provides service, the client of serving as on the other hand cloud service, and cloud service is conducted interviews.
Described agency service queue, for the client requests queue of maintenance access cloud service.Form with queue is safeguarded the request from mobile device client.
Described library is for storing the agency service description document (with PSIDL language description) from mobile device client upload.Library certain disk position on access proxy server creates a room, is specifically designed to and preserves agency service description document.
Described library manager is for managing the agency service description document of mobile device client upload.Library manager added or deleted file in library in the past, but did not support revised file.
According to one embodiment of the invention, described access proxy server also comprises response results optimizer.Described response results optimizer is for realizing the optimization of data transmission format, and it comprises that XML is to JSON transducer.Because the data transmission format of at present some cloud service still adopts XML form (some other cloud service generally adopts JSON form), between mobile device client and access proxy server, adopt more the JSON form of lightweight to carry out exchanges data (and adopting general http protocol to carry out transfer of data) and can save the flow on mobile device.
In the present embodiment, the result of agency service response returns to response results optimizer by agency service adapter, by response results optimizer, the result after optimizing is returned to agency service adapter again, and finally by agency service adapter, return to mobile device client.
In a further embodiment, described response results optimizer also comprises JSON form customizer.On access proxy server, complete XML after the conversion of JSON form, also needed the data of JSON form to reset system.Because have partial data in the data that cloud service is returned, be not that mobile device is needed, delete the flow that this part data can be saved mobile device further.
According to one embodiment of present invention, XML to the implementation method of JOSN transducer is: the mapping relations based on setting up between the JSON of definition in the XML that defines in XML Information Set and RFC 4627, the bridge model that builds them between the two.
Fig. 4 has described XML to JSON transducer class figure, wherein define the interface of a ResultsDecoder, in this interface, defined a series of interfaces (parseXML and parseJSON) for cloud service response results is decoded by the coded system of different data format.By XMLDecoderByDOM and XMLDecoderBySAX class, parseXML interface is realized.Wherein, XMLDecoderByDOM class is supported the DOM model analyzing of XML form, and XMLDecoderBySAX supports the SAX model analyzing of XML form.RepresentationTransformer class realizes xmlToJson method by the XML format analysis function by XMLDecoderByDOM or XMLDecoderBySAX object, thereby completes XML to the conversion of JSON form.
Fig. 5 has described JSON form customizer class figure, thereby wherein the parseJSON interface of ResultsDecoder interface has been carried out realizing the heavy customization function of JSON form user.By JSONDecoder class, realized the Data Analysis to JSON data transmission format.Then, by RepresentationRebuilder object, by jsonRebuilder method, the response results form pre-defining according to application developer in ResultsTemplate object represents that template completes the system that resets to the JSON form of cloud service response results.
Realization based on above-mentioned XML to JOSN transducer and JSON form customizer, Fig. 6 shows data transmission format Optimizing Flow according to an embodiment of the invention, is divided into two steps:
Step 1: the data format to cloud service response results judges, if cloud service response results is XML form, converts thereof into JSON form through XML to JSON transducer; If cloud service response results is JSON form, do not deal with;
Step 2: the response results of JSON form cloud service directly being returned or convert through step 1, by JSON form customizer, complete the system that resets of JSON form response results, the system of resetting comprises the operations (as deleted the unwanted cloud service data of some mobile devices, reinventing as the less JSON form of volume of transmitted data) such as deleting, reinvent to cloud service response results.
In another embodiment of the present invention, described access proxy server also comprises service cache module.Described service cache module is for buffer memory cloud service response results, thereby acceleration access proxy server will be to the access of cloud service (that is:, if to same cloud service request, access proxy server will directly obtain response results from service cache module).
After agency service generates on access proxy server, as long as memory source is enough, agency service all the time can be not cleaned.The description of agency service and service object are kept in the HashMap of agency service inner queue realization, and service describing and service object are stored in HashMap with the form of Key-Value.When on proxy server, memory source is enough nervous, the agency service of those for a long time not being used is cleared up.It is cleaned that memory source anxiety also can cause serving the cloud service response results of agency service in cache module, simultaneously library manager also can deleted file storehouse in corresponding agency service description document.
The present invention also provides the mobile device application and development storehouse based on agency, is deployed in mobile device client, so that application developer develops based on mobile cloud service application of the present invention on mobile device.In one embodiment of the invention, this mobile device application and development storehouse comprises that description document uploads interface and agency service calling interface.Wherein, description document is uploaded interface, for mobile device client application provides, agency service description document (text that meets PSIDL linguistic norm) is uploaded to the interface that accesses proxy server; Agency service calling interface calls for mobile device client application provides the interface that accesses agency service on proxy server.
Wherein, described description document is uploaded interface the agency service description document of describing with PSIDL is uploaded to access proxy server, by the PSIDL resolver on access proxy server, be responsible for being resolved agency service corresponding to generation again and realize, for mobile device client-access.
Described agency service calling interface can conduct interviews to the agency service being deployed on access proxy server mobile device client, then by access proxy server, acts on behalf of mobile device client and completes the access to far-end cloud service.Access proxy server is after receiving mobile device client-side service request, according to the service name of request, in agency service queue, mate, once the match is successful, from queue, obtain cloud service and access required relevant parameter and construct complete, a legal URL and realize the access to cloud service.Obtain after cloud service response results, in one embodiment, access proxy server will be optimized processing to it by response results optimizer, make its data format with a kind of mobile computing environment preferably be back to mobile device client.
According to one embodiment of present invention, provide a kind of mobile cloud service access method based on agency to optimize the access of mobile device client to cloud service, described method comprises:
Step 1, call the agency service on access proxy server, mobile cloud service application is called the agency service on access proxy server by the agency service calling interface of mobile device client, agency service adapter on access proxy server carries out adaptation to the agency service of request in agency service queue, and in agency service queue, find the agency service of request, then client requests constructor will be constructed corresponding cloud service client, complete the access of long-range cloud service together with agency service adapter and obtain cloud service response results, this process is similar to the existing process by mobile device access cloud service.
Said method has comprised for accessing the agency service queue of proxy server the agency service that will call, according to one embodiment of present invention, as shown in Figure 7, before step 1, also comprise: when mobile cloud service is applied in while starting on mobile device, first whether it ask trial to exist to examine this agency service to the agency service on access proxy server.
If attempted unsuccessfully, mobile cloud service application can be uploaded interface by the description document of mobile device client and agency service description document (using PSIDL language description) is uploaded to the library (under " ./starmcc/cloud/MashupTaskRepository " relative file catalogue of access proxy server) of access proxy server, library manager detects library renewal, drive PSIDL resolver to resolve to generate corresponding agency service to this agency service description document and realize, and this agency service is joined in agency service queue.
If the agency service of request exists (trial and success), do not operate.
According to another embodiment of the invention, in step 2, first agency service adapter returns to cloud service response results to response results optimizer, by response results optimizer, the cloud service response results of the agency service of mobile cloud service application request is optimized, by XML, to JSON transducer, the data format returning is changed to (if this data format is originally as JSON, not operating) from cloud service.In a further embodiment, can also the data of JSON form be reset to system by JSON form customizer, for example, delete and reinvent operation, to reach the object of compressed transmission data.Cloud service response results after this optimization returns to agency service adapter by response results optimizer.
According to still another embodiment of the invention, step 2 also comprises cloud service response results buffer memory to serving cache module.Like this, first agency service adapter can find the agency service of request from service cache module, if preserve the agency service of this request in service cache module, access proxy server and will directly from service cache module, obtain corresponding cloud service response results.
The mobile device of take below access Amazon, eBay cloud service scene are example, describe the method step that the mobile cloud service access system of using based on agency realizes mobile cloud service application in detail.
The commodity price comparison cloud service of directly accessing Amazon, eBay due to mobile device will bring larger wireless network bandwidth to take and the problem such as mobile device resource consumption, now adopts the mobile cloud service access system based on agency provided by the invention can realize mobile device and efficiently accesses easily cloud service.The concrete steps that realize this application are as follows:
Step 1, adopt PSIDL language to be described (in Fig. 8, having described eBay agency service interface) to the agency service of needs access, and this agency service description document is put into the assets catalogue of engineering, then StarMCC-Android.jar bag provided by the present invention is imported in engineered paths, application program just can be called the public API (StarMCC-Android.jar is the class libraries that the present invention provides for develop mobile cloud service application on mobile device) that this jar bag exposes.
In addition, the agency service that administrative staff can dispose on proxy server access by visual administration interface be carried out unified management operation, as check agency service on access proxy server executing state and relevant information (input parameter, output parameter, service URL etc.), terminate and delete agency service while moving, Dynamical Deployment agency service etc.
Although the mobile device of take access Amazon, eBay cloud service are example, illustrated how developer utilizes the present invention to complete this mobile cloud service application.But one of ordinary skill in the art will appreciate that other mobile cloud service application also can be by adopting system and method provided by the invention efficiently to access easily cloud service.
Should be noted that and understand, in the situation that not departing from the desired the spirit and scope of the present invention of accompanying claim, can make various modifications and improvement to the present invention of foregoing detailed description.Therefore, the scope of claimed technical scheme is not subject to the restriction of given any specific exemplary teachings.
Claims (13)
1. the mobile cloud service access system based on agency, described system comprises mobile device client and is deployed in the access proxy server between mobile device client and cloud service, wherein said access proxy server comprises:
PSIDL resolver, for resolving the agency service description document that adopts PSIDL language description,
Library, for storing the agency service description document from mobile device client upload,
Library manager, for managing the agency service description document from mobile device client upload,
Agency service queue, for the mobile device client-requested queue of maintenance access cloud service,
Agency service actuator, for carrying out the agency service of mobile device client-requested;
Described mobile device client comprises:
Description document is uploaded interface, for by agency service description document from mobile device client upload to accessing proxy server,
Agency service calling interface, for calling the agency service on access proxy server.
2. system according to claim 1, described agency service actuator comprises agency service adapter and client requests constructor, wherein:
Agency service adapter is for carrying out adaptation to the agency service of mobile device client-requested, to find corresponding destination service;
Client requests constructor is used for constructing the mobile device client-requested of cloud service, and completes the access to cloud service.
3. system according to claim 2, described access proxy server also comprises response results optimizer, this response results optimizer comprises that XML is to JSON transducer, for the Data Format Transform to cloud service response results.
4. system according to claim 3, described response results optimizer also comprises JSON form customizer, for the JSON form customization to cloud service response results.
5. system according to claim 4, the JSON form customization of cloud service response results comprises deleting and reinventing cloud service response results.
6. according to the system one of claim 2-5 Suo Shu, described access proxy server also comprises service cache module, for buffer memory cloud service response results.
7. the mobile cloud service access method of mobile cloud service access system based on agency based on claim 1, the method comprises:
Step 1) the agency service calling interface, by mobile device client calls the agency service on access proxy server, comprising:
Step 1-1), the agency service adapter of access on proxy server carry out adaptation to the agency service of request in agency service queue, finds the agency service of request,
Step 1-2) by client requests constructor, construct corresponding cloud service client, complete the access of long-range cloud service together with agency service adapter and obtain cloud service response results;
Step 2), by agency service adapter, cloud service response results is returned to mobile device client.
8. method according to claim 7, wherein step 1) also comprise the steps: before
When mobile cloud service is applied in while starting in mobile device client, first to access proxy server, ask trial whether to exist to examine the agency service of request,
When attempting unsuccessfully, from mobile device client, agency service description document is uploaded to the library of access proxy server, by library manager, drive PSIDL resolver to resolve to generate corresponding agency service to this agency service description document and realize, and this agency service is joined in agency service queue.
9. method according to claim 7, wherein step 1) also comprise:
Step 1-3), by agency service adapter, cloud service response results is returned to response results optimizer, by response results optimizer, cloud service response results form is optimized, finally the cloud service response results after optimizing is returned to agency service adapter, wherein, described cloud service response results form be optimized and comprised:
Step 1-3-1), the data format of cloud service response results is judged, XML form if, by XML, to JSON transducer, carry out the conversion of cloud service response results data format, if cloud service response results itself is JSON form, do not operate.
10. method according to claim 9, wherein step 1-3) also comprise:
Step 1-3-2), by JSON form customizer, carry out JSON data and reset system.
11. methods according to claim 10, wherein carry out JSON data by JSON form customizer and reset system and comprise and delete and reinvent.
12. according to the method one of claim 7-11 Suo Shu, wherein step 2) also comprise: by cloud service response results buffer memory to serving cache module.
13. methods according to claim 12, wherein step 1-1) also comprise the steps: before
Agency service adapter on access proxy server is found the agency service of request from service cache module, if preserve the agency service of this request in service cache module, access proxy server and will directly from service cache module, obtain cloud service response results skips steps 1-1).
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