server.java

利用CORBA的值类型实现的一个分布式程序

// 服务端主程序
import Bank.*;
import org.omg.PortableServer.*;

public class Server {
    public static void main(String[] args) {
        try {
            // 初始化ORB并取根POA的引用
            org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init(args, null);
            POA rootPOA = POAHelper.narrow(orb.resolve_initial_references("RootPOA"));
            // 创建持久POA的策略并用新定义的策略创建myPOA
            org.omg.CORBA.Policy[] policies = {
                rootPOA.create_lifespan_policy(LifespanPolicyValue.PERSISTENT)
            };
            POA myPOA = rootPOA.create_POA("BankPOA", rootPOA.the_POAManager(), policies);
            // 创建伺服对象并在myPOA上用标识"CreditCardManager"激活伺服对象
            CreditCardManagerImpl managerServant = new CreditCardManagerImpl();
            myPOA.activate_object_with_id("CreditCardManager".getBytes(), managerServant);
            // 激活POA管理器等待处理客户程序的请求
            rootPOA.the_POAManager().activate();
            System.out.println("信用卡管理员CreditCardManager已就绪 ...\n");
            orb.run();
        } catch(Exception exc) {
            exc.printStackTrace();
        }
    }
}