KR101382439B1 - Method and apparatus for providing multi-interface in wireless distributed system - Google Patents

Abstract

The present invention provides a method for providing a multi-interface service in a wireless distributed system, the method comprising: calling a service from at least one client connected through a network, and optimizing each client calling the service to communicate with or communicate with the client; Exposing the established protocol, dynamically loading a class file defined in the server using a class loader configured to execute a class file necessary for providing a service to the client, and The method includes converting an interface for hosting corresponding to an optimized protocol.

Description

METHOD AND APPARATUS FOR PROVIDING MULTI-INTERFACE IN WIRELESS DISTRIBUTED SYSTEM}

The present invention relates to a method and apparatus for providing a multi-interface in a wireless distributed system provided in a Healthcare Software Framework (HSF) Service Oriented Architecture (SOA) framework.

1 is a block diagram showing a communication protocol and a data format between a client and a server in a general distributed system having a multilayer client / server structure.

Referring to FIG. 1, in the case of a fixed HSF desktop client 110 in a wireless distributed system in which network communication and data types are controllable, HSF using .NET Well Known DataType using TCP communication using WCF (Windows Communication Foundation). In case of using HSF mobile client client 112, it is basically based on communicating with server using HTTP-based pure XML data type that is most commonly used in terminal. This can be replaced.

In case of HSF External System (114) client, internal service interface exposes separate HTTP SOAP protocol for external system, and external service interface accesses internal service interface through Internal Service Facade.

In this case, in order to expose a service written as a general class file in the service layer of the server 116 in the multi-protocol of each client in the distributed system, manual operation is required for each interface, and in the case of .NET WCF-based service development as a single source. It can expose multiple interfaces, but can not maintain loose coupling to general service class files, which not only deepens dependencies among client services, but the larger the application size, the more development and modification and addition of multi interface conversion The costly problem arises.

The present invention seeks to provide a technology that enables easy development and management without having additional knowledge of multi-interfaces.

In addition, since the present invention does not generate additional code lines in the developer's project environment, the development productivity improvement and maintenance cost can be reduced, and individual, batch, and scheduled conversion are possible, thereby lowering the cost of service conversion of a large enterprise application. It aims to provide technology that is easy to develop and manage with high efficiency.

According to an aspect of the present invention, in a method for providing a multi-interface service in a wireless distributed system, calling a service from at least one or more clients connected through a network, and calling the service to communicate with or transmit a signal to the client Exposing an optimized protocol to each client, dynamically loading a class file defined in the server using a class loader configured to execute a class file necessary to provide a service to the client, and And converting the interface according to the hosting corresponding to the optimized protocol of each client.

According to another aspect of the present invention, in a multi-interface service providing apparatus in a wireless distributed system, a platform for compiling and operating a framework written using a predetermined language into a predetermined byte code, and different protocols in the same host An interface unit for communicating with a remote middleware application component that uses a program, loads and stores a class file required for the execution of the framework, and dynamically loads the class file using a class loader to request a service call It characterized in that it comprises a control unit for converting according to the protocol.

The present invention provides a multi-interface in a wireless distributed system to enable easy development and management without having additional knowledge of the multi-interface, and does not generate additional code lines in the developer's project environment, improving development productivity and maintenance In addition to reducing costs, individual, batch, and scheduled conversions can be made, resulting in low-cost, high-efficiency development and management for transforming services in large-scale enterprise applications.

1 is a block diagram showing a communication protocol and a data format between a client and a server in a general distributed system having a conventional multilayer client / server structure.
2 is a flowchart illustrating a multi-interface service providing method in a wireless distribution system according to an embodiment of the present invention.
3 is an exemplary screen view of an algorithm capable of converting a business component into a serviceable web service.
4 is an exemplary view showing a web service converter class diagram.
5A is a diagram illustrating a service interface class separated from a service logic class in an original service for converting to a multi-service according to an embodiment of the present invention, and a service logic class inheriting a service interface. Example screen shown.
6 is an exemplary view showing a WCF service model reference according to an embodiment of the present invention.
7 is an exemplary view showing a standard of a conversion target service according to an embodiment of the present invention.
8 (a) is an example of a web.config file according to an embodiment of the present invention, Figure 8 (b) is an illustration showing the configuration of the HSF call logic of the service interface.
9 is a block diagram of a multi-interface service providing apparatus in a wireless distribution system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be appreciated that those skilled in the art will readily observe that certain changes in form and detail may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims. To those of ordinary skill in the art.

The present invention is included in the Healthcare Software Framework (HSF) Service Oriented Architecture (SOA) framework, and more specifically, a class file written on the basis of .NET in a wireless distributed system that takes a multilayered client / server structure through a network. If the interface specification is met, the service can be automatically converted to a multi-interface (Web Service-SOAP-based, REST / JSON Service, HTTP 1.1 Basic) format service, so that the development and management can be easily performed without additional knowledge about the multi-interface. And additional code lines are not generated in the developer's project environment, reducing development productivity and maintenance costs, as well as enabling individual, batch, and scheduled conversions, resulting in low cost for service transformation of large enterprise applications. High efficiency development and management It is intended to provide an easy technique.

In addition, the client according to an embodiment of the present invention is an example of a digital broadcasting terminal, a personal digital assistant (PDA), a smart phone, a tablet PC, an iPad, a 3G terminal. For example, all information communication devices such as International Mobile Telecommunication 2000 (IMT-2000) terminals, Wideband Code Division Multiple Access (WCDMA) terminals, Global System For Mobile Communication Packet Radio Service (GSM / GPRS), and Universal Mobile Telecommunication Service (UMTS) terminals. And multimedia devices. However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, and the like, except when applicable only to portable terminals.

Hereinafter, a multi-interface service providing method in a wireless distributed system according to an embodiment of the present invention will be described in detail with reference to FIG. 2.

2 is a flowchart illustrating a method for providing a multi-interface service in a wireless distribution system according to an embodiment of the present invention.

Referring to FIG. 2, first, a service is called by at least one or more clients connected through a network in step 210.

Here, the client is a remote middleware application component using different protocols in the same host.

In step 212, the client exposes an optimized protocol of each client that calls a service to communicate with or communicate with the client.

At this time, the communication protocol between the HSF SOA client and the HSF SOA server according to an embodiment of the present invention uses WCF (Windows Communication Foundation) when the fixed HSF desktop client in a wireless distributed system that can control network communication and data types. HSF service using .NET Well Known DataType as TCP communication.

In addition, in case of HSF mobile terminal client, it is basically based on the HTTP-based pure XML data type that is widely used in the terminal to communicate with the server, but it can be replaced when HTTP SOAP is possible in the mobile terminal client.

In the case of an HSF External System client, the internal service interface exposes a separate HTTP SOAP protocol for the external system, and the external service interface accesses the internal service interface through the Internal Service Facade.

Thereafter, in step 214, the class loader dynamically loads the class file defined in the server using a class loader configured to execute a class file necessary for providing a service to the client.

In this case, the dynamic loading means extracting a predetermined interface from an assembly of loosely coupled business components and converting the interface into a web service.

Here, referring to (a) and (b) of FIG. 3, FIG. 3 is an exemplary view of an algorithm that can convert the business component into a web service that can be easily serviced. FIG. Figure 3 (b) shows the extraction of the DataContract object in the assembly is shown.

In the web service conversion process, a class diagram is performed as shown in FIG. 4.

The conversion target service supports the HTTP SOAP and REST protocol provided by the WCF, and supports the exposure of the web service and the REST protocol supporting the most general WS-Basic Profile 1.2 or higher.

Figure 7 shows the description of two protocols that can be converted in the HSF of the binding protocol (Binding Protocol) provided by such a WCF.

The configuration of the Config file and the service code required for this WCF conversion creates a WCF hosting service file that will host the web service to convert the original service interface to basicHttPBinding and webHttpBinding.

In this case, an example of the hosting service file is as follows.

The configuration of the web config configures a web.config file for designating a protocol type and a related setting value of a service to be exposed. An example of the configured web.config file is shown in FIG.

Subsequently, in step 216, the interface is converted for hosting corresponding to the optimized protocol of each client.

In this case, the interface conversion is performed by automatically generating codes related to operations, data, and hosting, and the service logic and the service interface are separated so that the conversion is performed on a file composed of the service interface only. 5A and 5B, FIG. 5A is a diagram illustrating an example of an algorithm of a service interface class separated from the service logic class, and FIG. An example of a screen showing an algorithm of a service logic class that inherits the service interface.

The replication of the HSF service interface and the DTO object is generated in the same class on the machine of the target service because the DTO object required for the HSF service interface and the DataContract for the service conversion is used the same in the converted service, and the HSF call logic of the service interface The configuration is a web service or a service exposed as REST, which adds the Facade call auto code defined in HSF to call HSF's internal service logic.

FIG. 8B is an exemplary view showing that logic for calling the original service of the HSF is added as a behind code of the converted interface class.

According to an embodiment of the present invention, the service interface uses the .NET Framework 4.0 WCF, and the lower version of the .NET Framework 4.0 or lower can be converted, but the WCF should be used for the complete guarantee of compatibility. 6 illustrates an example of a screen showing a reference of the WCF service model with reference to FIG. 6.

After converting the class file after performing operation 216, a protocol corresponding to a corresponding client by providing a link of a web service description language described in XML (Extensible Markup Language) or a WSDL (Web Services Description Language) which is a described definition file. After the conversion, the WSDL link is provided.

In the above, the method for providing a multi interface in a wireless distributed system according to an embodiment of the present invention has been described.

Hereinafter, a multi-interface providing apparatus in a wireless distributed system according to an embodiment of the present invention will be described with reference to FIG. 9.

9 is a schematic block diagram of a multi-interface providing apparatus in a wireless distributed system according to an embodiment of the present invention.

9, in the wireless distributed system applied to the present invention, the multi-interface providing apparatus 900 includes various protocols, that is, TCP 911, HTTP / XML 913, HTTP / SOAP 915, and REST / SOAP 917. ), A control unit 920 including an interface unit 918 and a Biz Logic processor 919, and a facade manager 921.

The various protocols, that is, the TCP 911, the HTTP / XML 913, the HTTP / SOAP 915, and the REST / SOAP 917 are controlled by the control unit 920, for example, the desktop 910, the web 912. ), Performs communication or data transfer between the mobile 914 and the tablet 916 and the server 900.

The business logic processor 919 executes / stores / manages a formalized business template.

The interface unit 918 is responsible for the interface between the business logic processor 919 and the exposed protocol under the control of the controller 920.

The controller 920 includes the business logic processor 919 and the interface unit 918, and exposes at least one or more protocols optimized for each client invoking a service, and is a class necessary for providing a service to the client. Dynamically loading into a class file defined in the server using a class loader set up for execution of the file, and using the interface unit 918 to interface to the host corresponding to the protocol optimized for each client Control to provide by converting.

In addition, the controller 920 controls to automatically generate and execute codes related to operations, data, and hosting when the interface is provided.

The facade manager 921 generates an internal class structure of a framework in the server 900.

As described above, an operation related to a method and an apparatus for providing a multi-interface in a wireless distributed system according to the present invention can be performed. Meanwhile, the above-described description of the present invention has been described with reference to specific embodiments. It can be done without. Accordingly, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by equivalents of the claims and the claims.

918: interface unit 919: business logic processor
920: control unit 921: facade manager

Claims (11)

In the method of providing a multi-interface service in a wireless distributed system,
Calling a service from at least one client connected over a network;
Exposing an optimized protocol to each client invoking the service to communicate with or communicate with the client,
Dynamically loading a class file defined in a server by using a class loader configured to execute a class file necessary for providing a service to the client,
Converting an interface for hosting corresponding to the optimized protocol of each client,
The class file,
Method for providing a multi-interface service in a wireless distributed system, characterized in that the service logic and the service interface is separated and the conversion is performed on the file consisting of only the service interface. The process of claim 1, wherein the converting and providing the interface comprises:
Method for providing a multi-interface service in a wireless distributed system, characterized in that performed by automatically generating code related to the operation (Operation), data (Data) and hosting (Hosting). delete The method of claim 1, wherein the client,
A method for providing a multi-interface service in a wireless distributed system, which is a remote middleware application component using different protocols in the same host. The method of claim 1, wherein the dynamic loading,
A method for providing a multi-interface service in a wireless distributed system, comprising: extracting a predetermined interface class from an assembly of a loosely coupled business component and converting it into a web service. The method of claim 1, wherein the server and client,
A method for providing a multi-interface service in a wireless distributed system using WCF (Windows Communication Foundation) to communicate with TCP, HTTP, or HTTP SOAP and REST protocols. The method of claim 1,
After converting the class file, a link of a web service description language (XML) described in XML (Extensible Markup Language) or web definition description file (WSDL), which is a described definition file, is provided to confirm whether or not conversion is performed to a protocol corresponding to the corresponding client. The multi-interface providing method in a wireless distributed system characterized in that it further comprises a process. The method of claim 1, wherein the interface,
Method for providing a multi-interface in a wireless distributed system, characterized in that the interface convertible interface suitable for the function of each exposed protocol. In the multi-interface service providing apparatus in a wireless distributed system,
BizLogic processor that executes / stores / manages Biz template that formalizes Biz logic to be executed in server,
An interface unit in charge of an interface between the bizlogic processor and an exposed protocol;
A class loader including the business logic processor and an interface unit to expose at least one or more protocols optimized for each client invoking a service, and executing a class file necessary for providing a service to the client. And a controller configured to dynamically load the class file defined in the server, and to convert and provide an interface for hosting corresponding to a protocol optimized for each client by using the interface unit.
The class file,
Device for providing a multi-interface service in a wireless distributed system, characterized in that the service logic and the service interface is separated and the conversion is performed on the file consisting of only the service interface. 10. The apparatus according to claim 9,
Apparatus for providing a multi-interface service in a wireless distributed system, characterized in that the control to automatically generate and execute the code associated with the operation (Operation), data (Data) and hosting (Host) when providing the multi-interface. The method of claim 9, wherein the server and client,
Apparatus for providing a multi-interface service in a wireless distributed system using WCF (Windows Communication Foundation) to communicate with TCP or HTTP or HTTP SOAP and REST protocols.

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