Tuscany SCA Java (3) bind to RMI Service

All accesses to the Computer Implemented in Tuscany SCA Java (2) are local, and all generated components and call components are carried out in the local Tuscany container. Next I will perform remote calls, this is the true strength of Tuscany. We still use Tuscany
In SCA Java (2), you only need to modify the. Composite file and add a server and client class to test the code.

Here we bind the calculator component to the RMI service and only modify the previous. Composite file, as shown below:

Culcalator. Composite

<?xml version="1.0" encoding="UTF-8"?><composite xmlns="http://www.osoa.org/xmlns/sca/1.0"xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.0"targetNamespace="http://calc"xmlns:c="http://calc"name="Calculator" ><component name="CalculatorServiceComponent"><implementation.java class="com.ajun.tuscany.server.Calculator" /><service name="Calculator"><interface.java interface="com.ajun.tuscany.server.ICalculator"/><tuscany:binding.rmi port="8099" host="localhost" serviceName="CalculatorRMIService" /></service><reference name="add" target="AddComponent"/><reference name="subtract" target="SubtractComponent"/><reference name="multiply" target="MultiplyComponent"/><reference name="divide" target="DivideComponent"/></component><component name="AddComponent"><implementation.java class="com.ajun.tuscany.server.Add" /></component><component name="SubtractComponent"><implementation.java class="com.ajun.tuscany.server.Subtract" /></component><component name="MultiplyComponent"><implementation.java class="com.ajun.tuscany.server.Multiply" /></component><component name="DivideComponent"><implementation.java class="com.ajun.tuscany.server.Divide" /></component></composite>

To bind to RMI service, you only need to add

<Service name = "Calculator">
<Interface. Java interface = "com. ajun. Tuscany. server. icalculator"/>
<Tuscany: binding. Rmi Port = "8099" host = "localhost" servicename = "calculatorrmiservice"/>
</Service>

The service name is: calculator, which must be the same as your implementation class.

<Interface. Java interface = "com. ajun. Tuscany. server. icalculator"/> interface exposed to external access

<Tuscany: binding. RMI Port = "8099" host = "localhost" servicename = "calculatorrmiservice"/> RMI server IP address and port number, and RMI service name.

In this way, the computer components are bound to the RMI service.

Write a service class to start the RMI service.

Calculatorrmiserver. Java

Package COM. ajun. tuscany. server; import Java. io. ioexception; import Org. apache. tuscany. SCA. host. embedded. scadomain;/*** RMI server startup * @ author ajun * @ E-mail zhaojun2066@gmail.com * @ blog http://blog.csdn.net/ajun_studio * @ version creation time: 9:44:32 */public class calculatorrmiserver {/*** @ Param ARGs * @ throws ioexception */public static void main (string [] ARGs) throws ioexception {system. out. println ("uses the SCA component as an Rmi interface for external access ....... "); scadomain domain = scadomain. newinstance ("com/ajun/Tuscany/Server/calculator. composite "); system. out. println ("Carriage Return key ....... "); system. in. read (); domain. close (); system. out. println ("exit ....... "); system. exit (0 );}}

The following information is displayed when running the above class:

Use the SCA component as the RMI interface for external access ....... 2012-7-23 22:32:10 Org. apache. tuscany. SCA. node. impl. nodeimpl <init> information: Creating node: COM/ajun/Tuscany/Server/calculator. composite2012-7-23 22:32:12 Org. apache. tuscany. SCA. node. impl. nodeimpl upload Enode information: loading contribution: file:/E:/springdm/calculator_rmi/bin/22:32:14 Org. apache. tuscany. SCA. node. impl. nodeimpl start information: Starting node: COM/ajun/Tuscany/Server/calculator. composite enter key .......

Client code: calculatorrmiclient. Java

Package COM. ajun. tuscany. client; import java.net. malformedurlexception; import Java. RMI. naming; import Java. RMI. notboundexception; import Java. RMI. remoteException; import COM. ajun. tuscany. server. icalculator;/*** RMI client * @ author ajun * @ E-mail zhaojun2066@gmail.com * @ blog http://blog.csdn.net/ajun_studio * @ version creation time: 9:44:44 */public class calculatorrmiclient {/*** @ Param ARGs * @ throws notboundexception * @ throws RemoteException * @ throws malformedurlexception */public static void main (string [] ARGs) throws malformedurlexception, RemoteException, notboundexception {icalculator c = (icalculator) naming. lookup ("// localhost: 8099/calculatorrmiservice"); system. out. println ("3 + 2 =" + C. add (3, 2); system. out. println ("3-2 =" + C. subtract (3, 2); system. out. println ("3*2 =" + C. multiply (3, 2); system. out. println ("3/2 =" + C. divide (3, 2 ));}}

Run the above Code:

3 + 2 = 5.03 - 2 = 1.03 * 2 = 6.03 / 2 = 1.5

The code structure is as follows: for the remaining code, see Tuscany SCA Java (2)