CN111966937A - Search response method and device and computer readable storage medium - Google Patents

Abstract

The present application provides a search response method, device and computer-readable storage medium. The search response method includes: when a resource search request is received, determining a current network connection state; when the network connection state is an abnormal network connection state, Obtain the locally cached offline resource pack; output the search result page corresponding to the resource search request based on the offline resource pack. Through the implementation of the solution of the present application, the offline resource package is cached locally. If the network connection is abnormal, the user's resource search request is directly responded to according to the offline resource package, which effectively improves the page loading speed and ensures the success rate of page loading. .

Description

A search response method, apparatus, and computer-readable storage medium

technical field

The present application relates to the field of electronic technologies, and in particular, to a search response method, apparatus, and computer-readable storage medium.

Background technique

With the rapid development of terminal technology, electronic devices such as mobile phones and tablet computers are used more and more frequently in users' work and life. Users usually use the browser client installed on the electronic device to search for resources. When the client receives the user's resource search request, the browser client provides a page to present the content to be displayed.

At present, every time a user initiates a resource search request, the browser client needs to access the server to obtain the corresponding resource, which is highly dependent on the network. If the network environment is not good or the network is disconnected, the page loading will be slow. or loading errors.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a search response method, device, and computer-readable storage medium, which can at least solve the problem that the browser client in the related art is prone to slow page loading or loading errors when the network environment is not good or the network is disconnected. question.

A first aspect of the embodiments of the present application provides a search response method, which is applied to a browser client, including:

When receiving a resource search request, determine the current network connection state;

When the network connection state is an abnormal state of the network connection, obtain a locally cached offline resource package;

A search result page corresponding to the resource search request is output based on the offline resource bundle.

A second aspect of the embodiments of the present application provides a search response device, which is applied to a browser client, including:

A determination module, used to determine the current network connection state when a resource search request is received;

an acquisition module, configured to acquire a locally cached offline resource package when the network connection state is an abnormal state of the network connection;

An output module, configured to output a search result page corresponding to the resource search request based on the offline resource package.

A third aspect of the embodiments of the present application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, the above-mentioned first embodiment of the present application is implemented. Steps in the search response method provided in an aspect.

A fourth aspect of the embodiments of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps in the search response method provided in the first aspect of the embodiments of the present application. .

As can be seen from the above, according to the search response method, device and computer-readable storage medium provided by the solution of the present application, when a resource search request is received, the current network connection state is determined; when the network connection state is an abnormal state of network connection, the Locally cached offline resource pack; output the search result page corresponding to the resource search request based on the offline resource pack. Through the implementation of the solution of the present application, the offline resource package is cached locally. If the network connection is abnormal, the user's resource search request is directly responded to the offline resource package, which effectively improves the page loading speed and ensures the success rate of page loading. .

Description of drawings

FIG. 1 is a schematic flowchart of a basic flow of a search response method provided by the first embodiment of the present application;

2 is a schematic diagram of a search response interface provided by the first embodiment of the present application;

3 is a schematic flowchart of an offline resource package update method provided by the first embodiment of the present application;

4 is a schematic flowchart of another offline resource package update method provided by the first embodiment of the present application;

FIG. 5 is a schematic flowchart of a refinement of the search response method provided by the second embodiment of the present application;

FIG. 6 is a schematic diagram of program modules of a search response apparatus provided by the third embodiment of the present application;

FIG. 7 is a schematic diagram of program modules of another search response apparatus provided by the third embodiment of the present application;

FIG. 8 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present application.

Detailed ways

In order to make the purpose, features and advantages of the invention of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. The embodiments described above are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of this application.

In order to solve the defect in the related art that when the network environment of the browser client is not good or the network is disconnected, it is easy to cause slow page loading or loading errors, the first embodiment of the present application provides a search response method, which is applied to the browser client terminal, as shown in FIG. 1 , the basic flowchart of the search response method provided by the present embodiment, the search response method includes the following steps:

Step 101: When a resource search request is received, determine the current network connection state.

Specifically, the search response method in this embodiment can be applied to a direct search scenario, that is, when the client detects the characters entered by the user in the browser search box, and generates a resource search request, it can also be applied to a common search scenario, that is After the user enters characters in the browser search box, the search control is triggered to generate a resource search request.

It should be noted that the network connection state in this embodiment may include a normal network connection state and an abnormal network connection state, and further, the abnormal network connection state may include a disconnected network connection state and a low-quality network connection state.

Step 102: When the network connection state is an abnormal network connection state, obtain a locally cached offline resource package.

Specifically, in this embodiment, a resource package of an html5 page is cached locally on the client side, and the resource package may include html, css, js, jpg files, and the like. It should be understood that the offline resource package in this embodiment may be a resource package obtained from the server in a normal network connection state, and the offline resource package is used by the client to load a page in an offline state.

In some implementations of this embodiment, acquiring a locally cached offline resource package includes: acquiring a search response requirement of a user who inputs a resource search request; acquiring a corresponding offline resource package from a plurality of locally cached offline resource packages based on the search response requirement resource pack.

Specifically, the search response requirement in this embodiment may be associated with the resource type in the search result page that the user expects to respond to. In this embodiment, a variety of offline resource packs of different versions may be cached locally, and the types of resources included in the offline resource packs of each version are different, so as to meet the search requirements of different users. For example, in this embodiment, considering that different users have different degrees of acceptance of search results, and some users pursue the comprehensiveness of search results, the offline resource package may include multiple types of resources including entries, news, audio, video, and pictures. However, some users are more interested in the cleanliness of search results, so the offline resource package can be a resource package that only includes entries and news.

Step 103 , output a search result page corresponding to the resource search request based on the offline resource package.

FIG. 2 is a schematic diagram of a search response interface provided by this embodiment. Specifically, in this embodiment, after recognizing the keyword input by the user in the browser search box (for example, Jay Chou in FIG. 2 ), the client terminal will The keyword is entered into the JavaScript interface in the web view Webview, and then notified to the WebView. Some js scripts in the WebView directly request to call the offline resource package, and obtain the html, css, js, resource files required for page display, etc. (as shown in Figure 2). Download card, news card below the search box), and then display it through Webview.

Different from the related art, which needs to request resources from the server based on the network connection, this embodiment can obtain the required resources based on the locally cached offline resource package, which can effectively improve the page loading speed of the browser, and can still be used when the network connection is abnormal. Page loading is performed normally to ensure the success rate of page loading.

In some implementations of this embodiment, before outputting the search result page corresponding to the resource search request based on the offline resource package, the method further includes: when the network connection state is a normal network connection state, validating the locally cached offline resource package. Sexual Analysis.

Specifically, in this embodiment, when the network connection is normal, considering that the speed of requesting resources from the server and then loading the page is slow and will cause network traffic consumption, this embodiment will give priority to the cached data in this scenario. Whether the offline resource package is currently valid, when the offline resource package is valid, the search result page corresponding to the resource search request is still output based on the offline resource package to improve page loading speed and save network traffic.

Further, in some implementations of this embodiment, the validity analysis of the locally cached offline resource package includes: obtaining a difference characterizing parameter between the online resource package provided by the server and the locally cached offline resource package; based on the difference The comparison results of the characterization parameters and the preset parameter thresholds are used to analyze the effectiveness of offline resource packs.

Specifically, in practical applications, a validity period may be preset for the locally cached offline resource package, and when the validity period arrives, the offline resource package becomes invalid. In this embodiment, in order to improve the accuracy of judging the validity of the resource package, the difference between the offline resource package and the resource package currently provided by the server can be analyzed, and the validity of the offline resource package can be determined according to the difference analysis result. It should be understood that the difference characterizing parameter in this embodiment may be a version difference value obtained based on the version number of the offline resource package and the version number of the online resource package. When the version difference value is lower than the preset value, the offline resource is indicated. The package is relatively new or the latest version, so the offline resource pack is valid, otherwise it is an older historical version, so the offline resource pack is invalid.

Further, in some implementations of this embodiment, when the offline resource package is invalid, the online resource package provided by the server can be obtained, and based on the online resource package, a search result page corresponding to the resource search request can be output, and the online resource package can be obtained through the online resource package. Resource bundles update locally cached offline resource bundles.

Specifically, in this embodiment, if the offline resource package is invalid, it means that the page loaded through the resource package cannot well meet the user's search requirements, so the resource request is made to the service side by using the current network connection, and the This is for normal loading of the search results page. In addition, this embodiment also updates the locally cached resource package through the resource package requested from the server this time, so as to repair the function of the browser client to load the page offline.

FIG. 3 is a schematic flowchart of a method for updating an offline resource package provided by this embodiment. Further, in some implementations of this embodiment, when updating a locally cached offline resource package through an online resource package, Specifically include the following steps:

Step 301, analyzing the resource attributes of each resource in the online resource package;

Step 302: Determine whether each resource satisfies the resource update condition based on the resource attribute;

Step 303 : Update the locally cached offline resource package by using the resources in the online resource package that satisfy the resource update condition.

Specifically, in this embodiment, considering that not all the resources in the resource package of the newly released version of the server are the resources expected by the user, this embodiment can determine whether the resource needs to be processed according to the resource attributes of each resource in the online resource package. Intercept processing, etc., to determine whether each resource has an update requirement, and then update the resource that actually has an update requirement in the originally cached offline resource package. Compared with the coarse-grained update method of replacing the locally cached resource packs entirely through the resource packs obtained online, the fine-grained update method of only partially updating a specific resource file provided by this embodiment is more flexible and controllable.

FIG. 4 is a schematic flowchart of another offline resource package update method provided in this embodiment. In some implementations of this embodiment, the offline resource package update method specifically includes the following steps:

Step 401, sending a resource pack update request carrying the unique identifier of the offline resource pack to the server;

Step 402, receiving the differential update resource package fed back by the server;

Step 403: Update the locally cached offline resource package based on the differential update resource package.

Specifically, the differential update resource package in this embodiment includes: in the latest online resource package provided by the server, all differential resources between the corresponding historical modification node and the latest node are uniquely identified, and the unique identification may be the use of information digest The message digest value computed by the algorithm is, for example, an MD5 value or a version number.

In practical applications, the browser client usually requests the full resource package from the server. Resource pack update speed. Based on this consideration, this embodiment proposes a differential update method, that is, when the client needs to update the resource package, the unique identifier of the cached offline resource package is reported to the server, and the server is based on the client side. The unique identifier of the resource package, locate the corresponding modified node in the latest resource package that it can provide, and then generate a differential update resource package based on all modification operation records between the modified node and the latest node. The differential update resource package is a certain update resource package. The difference between the previous version of the resource pack and the latest version of the resource pack. It should be understood that the resource package of the server is usually maintained by specialized developers, that is, the modification operations such as adding, deleting, and modifying resources are performed. Each modification operation can be regarded as an atomic operation. For each modification operation, The relevant modification operation records are recorded. At the same time, the unique identifier of the resource package obtained after each modification operation can also be recorded, so that it can be matched with the unique identifier reported by the client, thereby locating the client-side resource package. where to modify the node.

As a result, the client updates the local resource package through the differential update resource package, the amount of updated data is greatly reduced, the load of the server and the network traffic/power consumption of the client are reduced, and the update speed of the client is greatly accelerated.

Based on the technical solutions of the above embodiments of the present application, when a resource search request is received, the current network connection state is determined; when the network connection state is an abnormal state of the network connection, a locally cached offline resource package is obtained; based on the offline resource package output corresponding The search results page for resource search requests. Through the implementation of the solution of the present application, the offline resource package is cached locally. If the network connection is abnormal, the user's resource search request is directly responded to the offline resource package, which effectively improves the page loading speed and ensures the success rate of page loading. .

The method in FIG. 5 is a refined search response method provided by the second embodiment of the present application, applied to a browser client, and the search response method includes:

Step 501: When a resource search request is received, determine the current network connection state.

Specifically, the search response method in this embodiment can be applied to a direct search scenario, that is, when the client detects the characters entered by the user in the browser search box, and generates a resource search request, it can also be applied to a common search scenario, that is After the user enters characters in the browser search box, the search control is triggered to generate a resource search request.

Step 502: When the network connection state is an abnormal state of the network connection, obtain a locally cached offline resource package.

Specifically, in this embodiment, a resource package of an html5 page is cached locally on the client side, and the resource package may include html, css, js, jpg files, etc. The offline resource package is used for the client to load pages in an offline state.

Step 503 , output a search result page corresponding to the resource search request based on the offline resource package.

Specifically, in this embodiment, the client inputs the keywords input by the user into the JavaScript interface in the Webview, and then notifies the WebView below. Some js scripts in the WebView directly request to call the offline resource package, and obtain the html, css, js, resource files, etc., and then displayed through Webview.

Step 504: When the network connection state is the normal state of the network connection, perform validity analysis on the locally cached offline resource package.

Step 505: When the offline resource package is invalid, send a resource package update request carrying the unique identifier of the offline resource package to the server.

Specifically, in this embodiment, when the network connection is normal, if it is determined that the previously cached offline resource package is invalid, the resource package update is requested to the server through the network connection, so as to ensure that the offline page loading function can be normally used in the subsequent abnormal network connection. When the client needs to update the resource package, the unique identifier of the cached offline resource package is reported to the server, so that the server can perceive the version of the resource package currently cached by the client.

Step 506: Receive the differential update resource package fed back by the server.

Specifically, the differential update resource package in this embodiment includes: in the latest online resource package provided by the server, all differential resources between the corresponding historical modification node and the latest node are uniquely identified. Based on the unique identifier of the resource package on the client side, the server locates the corresponding modified node in the latest resource package that it can provide, and then generates a differential update resource package based on all modification operation records between the modified node and the latest node. The delta update resource pack is the difference between a resource pack of a certain historical version and the resource pack of the latest version.

Step 507: Update the locally cached offline resource package based on the differential update resource package.

In this embodiment, the client updates the local resource package by updating the resource package differentially, the amount of updated data is greatly reduced, the load of the server and the network traffic/power consumption of the client are reduced, and the update speed of the client is greatly accelerated. .

It should be understood that the size of the sequence numbers of the steps in this embodiment does not imply the order of execution of the steps, and the execution sequence of the steps should be determined by its functions and internal logic, and should not constitute the implementation process of the embodiments of the present application. only limited.

The embodiment of the present application discloses a search response method. When a resource search request is received, the current network connection state is determined; when the network connection state is an abnormal network connection state, a locally cached offline resource package is obtained; based on the offline resource package Output the search result page corresponding to the resource search request; when the network connection status is the normal state of the network connection, request a differential update resource pack from the server; update the locally cached offline resource pack based on the differential update resource pack. Through the implementation of the solution of the present application, the offline resource package is cached locally. If the network connection is abnormal, the user's resource search request is directly responded to the offline resource package, which effectively improves the page loading speed and ensures the success rate of page loading. ; In addition, when the network connection is normal, the local resource package update is performed through the differential update resource package, which reduces the server load and the client's network traffic/power consumption, and greatly speeds up the client update speed.

FIG. 6 is a search response apparatus provided by a third embodiment of the present application. The search response apparatus can be used to implement the search response method in the foregoing embodiments. As shown in Figure 6, the search response device mainly includes:

A determination module 601, configured to determine the current network connection state when receiving a resource search request;

an obtaining module 602, configured to obtain a locally cached offline resource package when the network connection state is an abnormal state of the network connection;

The output module 603 is configured to output a search result page corresponding to the resource search request based on the offline resource package.

In some implementations of this embodiment, the obtaining module 602 is specifically configured to: obtain a search response requirement of a user who inputs a resource search request; obtain a corresponding offline resource pack from a plurality of locally cached offline resource packs based on the search response requirement .

FIG. 7 is a schematic diagram of functional modules of another search response apparatus provided in this embodiment. In some implementations of this embodiment, the search response apparatus further includes an update module 604, which is used for: sending to the server The resource package update request with the unique identifier of the offline resource package; the differential update resource package fed back by the server is received, wherein the differential update resource package includes: in the latest online resource package provided by the server, the unique identifier corresponding to the history modification node All delta resources with the latest node; update the locally cached offline resource bundle based on the delta update resource bundle.

Referring to FIG. 7 again, in some implementations of this embodiment, the search response apparatus further includes an analysis module 605, configured to: before outputting the search result page corresponding to the resource search request based on the offline resource package, when the network connection state is network When the connection is in a normal state, the validity of the locally cached offline resource package is analyzed. Correspondingly, the output module 603 is specifically configured to: when the offline resource package is valid, output a search result page corresponding to the resource search request based on the offline resource package.

Further, in some implementations of this embodiment, the analysis module 605 is specifically configured to: obtain the difference characterizing parameters between the online resource package provided by the server and the offline resource package cached locally; based on the difference characterizing parameter and the preset parameter threshold The comparison results of the analysis of the effectiveness of offline resource packs.

Further, in other implementations of this embodiment, the obtaining module 602 is further configured to: after the validity analysis of the locally cached offline resource pack, when the offline resource pack is invalid, obtain the online resource pack provided by the server The output module 603 is further used for: outputting the search result page corresponding to the resource search request based on the online resource package; the updating module 604 is further used for: updating the locally cached offline resource package through the online resource package.

Further, in some implementations of this embodiment, when the update module 604 performs the function of updating the locally cached offline resource package through the online resource package, it is specifically configured to: analyze the resource attributes of each resource in the online resource package; The resource attribute judges whether each resource satisfies the resource update condition respectively; the offline resource pack in the local cache is updated through the resource that meets the resource update condition in the online resource pack.

It should be noted that the search response methods in the first and second embodiments can be implemented based on the search response device provided in this embodiment. Those of ordinary skill in the art can clearly understand that, for the convenience and brevity of description, this implementation For the specific working process of the search response apparatus described in the example, reference may be made to the corresponding process in the foregoing method embodiments, which will not be repeated here.

According to the search response device provided in this embodiment, when a resource search request is received, the current network connection state is determined; when the network connection state is an abnormal network connection state, a locally cached offline resource package is obtained; based on the offline resource package output The search results page corresponding to the resource search request. Through the implementation of the solution of the present application, the offline resource package is cached locally. If the network connection is abnormal, the user's resource search request is directly responded to the offline resource package, which effectively improves the page loading speed and ensures the success rate of page loading. .

Please refer to FIG. 8 . FIG. 8 is an electronic device according to a fourth embodiment of the present application. The electronic device can be used to implement the search response method in the foregoing embodiments. As shown in Figure 8, the electronic device mainly includes:

A memory 801 , a processor 802 , a bus 803 , and a computer program stored on the memory 801 and executable on the processor 802 , and the memory 801 and the processor 802 are connected through the bus 803 . When the processor 802 executes the computer program, the search response method in the foregoing embodiment is implemented. The number of processors may be one or more.

The memory 801 may be a high-speed random access memory (RAM, Random Access Memory) memory, or may be a non-volatile memory (non-volatile memory), such as a disk memory. The memory 801 is used to store executable program codes, and the processor 802 is coupled to the memory 801 .

Further, an embodiment of the present application also provides a computer-readable storage medium, which may be provided in the electronic device in the above-mentioned embodiments, and the computer-readable storage medium may be the one shown in FIG. 8 above. memory in the example embodiment.

A computer program is stored on the computer-readable storage medium, and when the program is executed by the processor, the search response method in the foregoing embodiment is implemented. Further, the computer-storable medium may also be a USB flash drive, a removable hard disk, a read-only memory (ROM, Read-Only Memory), a RAM, a magnetic disk, or an optical disk and other media that can store program codes.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of modules is only a logical function division. In actual implementation, there may be other division methods, for example, multiple modules or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or modules, and may be in electrical, mechanical or other forms.

Modules described as separate components may or may not be physically separated, and components shown as modules may or may not be physical modules, that is, they may be located in one place, or may be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist physically alone, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules.

The integrated modules, if implemented in the form of software functional modules and sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a readable storage The medium includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present application. The aforementioned readable storage medium includes: U disk, removable hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

It should be noted that, for the convenience of description, the foregoing method embodiments are described as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence. Because in accordance with the present application, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily all necessary for the present application.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

The above is a description of the search response method, device and computer-readable storage medium provided by this application. For those skilled in the art, according to the ideas of the embodiments of this application, there will be changes in the specific implementation and application scope. , to sum up, the content of this specification should not be construed as a limitation on this application.

Claims (10)

1. a search response method, applied to a browser client, is characterized in that, comprising: When receiving a resource search request, determine the current network connection state; When the network connection state is an abnormal state of the network connection, obtain a locally cached offline resource package; A search result page corresponding to the resource search request is output based on the offline resource bundle. 2. The search response method according to claim 1, wherein the acquiring the offline resource package of the local cache comprises: Obtain the search response requirements of the user who inputs the resource search request; Based on the search response requirement, a corresponding offline resource package is acquired from a plurality of offline resource packages cached locally. 3. The search response method according to claim 1, further comprising: sending a resource pack update request carrying the unique identifier of the offline resource pack to the server; Receive the differential update resource package fed back by the server; wherein, the differential update resource package includes: in the latest online resource package provided by the server, the relationship between the historical modification node corresponding to the unique identifier and the latest node All delta resources between; The locally cached offline resource bundle is updated based on the delta update resource bundle. 4. The search response method according to claim 1, wherein before outputting a search result page corresponding to the resource search request based on the offline resource package, the method further comprises: When the network connection state is the normal state of the network connection, analyze the validity of the locally cached offline resource package; When the offline resource package is valid, the step of outputting a search result page corresponding to the resource search request based on the offline resource package is performed. 5. The search response method according to claim 4, wherein the validity analysis of the locally cached offline resource package comprises: Obtain the difference characterization parameters between the online resource package provided by the server and the offline resource package cached locally; Based on the comparison result between the difference characterizing parameter and the preset parameter threshold, the validity of the offline resource package is analyzed. 6. The search response method according to claim 4, characterized in that, after the validity analysis is performed on the locally cached offline resource package, the method further comprises: When the offline resource pack is invalid, obtain the online resource pack provided by the server; A search result page corresponding to the resource search request is output based on the online resource pack, and the locally cached offline resource pack is updated through the online resource pack. 7. The search response method according to claim 6, wherein the updating the offline resource package of the local cache through the online resource package comprises: analyzing the resource attributes of each resource in the online resource package; Judging, based on the resource attributes, whether each resource satisfies the resource update condition; The offline resource package cached locally is updated through the resources in the online resource package that satisfy the resource update condition. 8. A search response device, applied to a browser client, comprising: A determination module, used to determine the current network connection state when a resource search request is received; an acquisition module, configured to acquire a locally cached offline resource package when the network connection state is an abnormal state of the network connection; An output module, configured to output a search result page corresponding to the resource search request based on the offline resource package. 9. An electronic device, comprising: a memory, a processor and a bus; The bus is used to realize the connection communication between the memory and the processor; the processor for executing a computer program stored on the memory; When the processor executes the computer program, the steps in the method of any one of claims 1 to 7 are implemented. 10. A computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps in the method of any one of claims 1 to 7 are implemented.

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