Tuscany 2 的基本配�|�与��程

paulwong — Wed, 24 Dec 2014 06:07:00 GMT

实习期间mentor让看看Tuscany——apache的一个顶�U�项目。之前一直没有接触过�Q�听mentor说了下用途过后，感觉其像是alibaba的分布式服务框架Dubbo�Q�简要看了看�Q�似乎和RMI也有相关性。��M��它也是面向服务的分布式框架。经�q�一下午的尝试，发现Tuscany 2和Tuscany 1�q�是有比较大的不同（API斚w��、设计思想没有深入研究不知道）�Q�网上关于Tuscany的资料也不多�Q�所以在此写文章mark一下�?/p>

Tuscany 1的API参考这位博�?a target="_blank" style="color: #336699; text-decoration: none;">http://blog.csdn.net/ajun_studio/article/details/7770023

1. 准备

首先是在工程中引入Tuscany 2.0.1的jar包，从一个Apache的China镜像上不难找刎ͼ�PS�Q�Tuscany 1在官�|�上已经不维护了�Q��?/p>

工程需要实现客��L��调用�q�程服务器端的服务的功能。该��目中调用远�E�完�?#8220;�?#8221;的功能�?/p>

2. 入门

首先��d��IAdd接口

package com.ajun.tuscany.server;

public interface IAdd {
    double add(double n1,double n2);
}

然后是实现类Add

package com.ajun.tuscany.server;

public class Add implements IAdd {

    @Override
    public double add(double n1, double n2) {
        // TODO Auto-generated method stub
        return n1 + n2;
    }

}

加减乘除都属�?#8220;计算”�c�，此处��Z��便，只实�?#8220;�?#8221;�Ҏ��。然后是“计算”的接口�?/span>

package com.ajun.tuscany.server;

public interface ICalculator {
    double add(double n1, double n2);
}

然后�?#8220;计算”的实玎ͼ�注意一定要在setter中加入@Reference�Q�否则会报错�Q�这里类��g��Spring的注入�?/span>

package com.ajun.tuscany.server;

import org.oasisopen.sca.annotation.Reference;

public class Calculator implements ICalculator {

    private IAdd add;

    public IAdd getAdd() {
        return add;
    }

    @Reference
    public void setAdd(IAdd add) {
        this.add = add;
    }

    @Override
    public double add(double n1, double n2) {
        // TODO Auto-generated method stub
        return this.add.add(n1, n2);
    }

}

到此�Q�基本的业务逻辑�c�d��~�写好了�Q�接下来�Q�是Tuscany中重要的配置文�g�Q�即XXX.composite�Q�其本质也是一个xml。如果不是面向分布式服务�Q�该xml文�g�l�构�c�M��Spring的application.xml。下面是Calculator.composite�Q�注意配�|�文件中reference�Q�name标记为add�Q�应该也是同Spring的大写首字母规则�Q�通过settrt注入�?/span>

           xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.1"
           targetNamespace="http://sample"
           xmlns:sample="http://sample"
           xmlns:scallop="http://scallop/xmlns/sca/1.1"
           name="Calculator" >


        class="com.ajun.tuscany.server.Calculator" />




        class="com.ajun.tuscany.server.Add" />

最后是�q�行main的类

package com.ajun.tuscany.server;

import org.apache.tuscany.sca.node.Node;
import org.apache.tuscany.sca.node.NodeFactory;

public class StartService {

    public static void main(String[] args) {
        Node node = NodeFactory.newInstance().createNode(
                "Calculator.composite");
        node.start();
        System.out.println("service启动");
        ICalculator c = node.getService(Calculator.class,
                "CalculatorServiceComponent");
        System.out.println(c.add(2, 2));
    }

}

�q�行输出如下

2014-11-10 17:39:24 org.apache.tuscany.sca.node.impl.NodeFactoryImpl loadContributions
信息: Loading contribution: file:/E:/HuRanjie/EclipseWorkspace/Calculatoer_01/bin/
2014-11-10 17:39:24 org.apache.tuscany.sca.host.rmi.DefaultRMIHost registerService
信息: RMI service registered: rmi://127.0.0.1:8099/CalculatorRMIService
2014-11-10 17:39:24 org.apache.tuscany.sca.core.assembly.impl.DomainRegistryImpl addEndpoint
信息: Add endpoint - binding.rmi - rmi://127.0.0.1:8099/CalculatorRMIService
2014-11-10 17:39:24 org.apache.tuscany.sca.core.assembly.impl.DomainRegistryImpl addEndpoint
信息: Add endpoint - binding.sca - AddComponent/Add
service启动
4.0

3. �q�程调用rmi

上面�q�没有将“计算”�c�M��Z��个服务，暴露�l�远�E�调用，只是实现了本地的装配。下面将其作为服务给�q�程调用�Q�后面可以看刎ͼ�只需要暴露一个包括host、port、serviceName

首先�Q�修攚w��|�文�Ӟ��修改为如下样�?#8212;—在本圎ͼ�127.0.0.1�Q�的8099端口暴露出名字�ؓCalculatorRMIService的服�?/p>

xml version="1.0" encoding="UTF-8"?>
<composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200912"
           xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.1"
           targetNamespace="http://sample"
           xmlns:sample="http://sample"
           xmlns:scallop="http://scallop/xmlns/sca/1.1"
           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 uri="rmi://127.0.0.1:8099/CalculatorRMIService"/>
        service>

        <reference name="add" target="AddComponent"/>
    component>

    <component name="AddComponent">
        <implementation.java class="com.ajun.tuscany.server.Add" />
    component>

composite>

服务器端的main主要功能是启动该服务�Q�如�?/p>

客户端通过rmi调用服务器端的服务，来实现功能，如下

package com.ajun.tuscany.client;

import java.rmi.Naming;
import com.ajun.tuscany.server.ICalculator;

public class CalculatorClient {

    public static void main(String[] args) throws Exception {
         ICalculator c= (ICalculator) Naming.lookup("http://127.0.0.1:8099/CalculatorRMIService");
         System.out.println(c.add(1, 2));
    }
}

启动服务端输�?/p>

2014-11-10 18:00:30 org.apache.tuscany.sca.node.impl.NodeImpl start
信息: Starting node: http://tuscany.apache.org/sca/1.1/nodes/default0 domain: default
2014-11-10 18:00:30 org.apache.tuscany.sca.node.impl.NodeFactoryImpl loadContributions
信息: Loading contribution: file:/E:/HuRanjie/EclipseWorkspace/Calculatoer_01/bin/
2014-11-10 18:00:31 org.apache.tuscany.sca.host.rmi.DefaultRMIHost registerService
信息: RMI service registered: rmi://127.0.0.1:8099/CalculatorRMIService
2014-11-10 18:00:31 org.apache.tuscany.sca.core.assembly.impl.DomainRegistryImpl addEndpoint
信息: Add endpoint - binding.rmi - rmi://127.0.0.1:8099/CalculatorRMIService
2014-11-10 18:00:31 org.apache.tuscany.sca.core.assembly.impl.DomainRegistryImpl addEndpoint
信息: Add endpoint - binding.sca - AddComponent/Add
service启动

客户端输�?br />
3.0

paulwong 2014-12-24 14:07 发表评论

SOA资源

paulwong — Tue, 23 Dec 2014 15:53:00 GMT

Tuscany
档案��目架构文档SOA搭徏�q�程
http://www.open-open.com/doc/view/54781005211b45fda0c15a44110efeaf

大用户量下的�pȝ��架构(SOA)
http://www.open-open.com/doc/view/2def65d401e949c1b8fe3bc306701234

paulwong 2014-12-23 23:53 发表评论

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Tuscany 2 的基本配�|�与���程

SOA资源

Tuscany 2 的基本配�|�与��程