ICE应用实例

本文接上篇博文《ICE通信框架》如果你还没有接触过ice请先阅读我的上篇博文http://blog.csdn.net/liuzhoulong/archive/2011/03/04/6223450.aspx

 

本文将结合实际项目，做一个基于ice的实际项目实例应用,该实例完成客户端调用服务端接口完成消息发送，计算的功能。

1,创建java项目ICEServer，导入ice.jar.

2,在项目下创建slice文件夹，编写model.ice,service.ice,service2.ice文件，其内容如下

model.ice

 

#ifndef _MODEL
#define _MODEL

module com
{
   module alan
   {
     module generated
     {
         module model
         {
                 /**定义整型数组**/
                    sequence<int> IntegerArray;

                    /**自定义Map类型**/
                    dictionary<string, string> CustomMap;

                    /**消息类型**/
                    enum MessageType {ERROR,INFO,WARNING};

                    /**计算操作类型**/
                    enum CalcType {Adds,Subtract,Multiply,Divide};
     
                      /**消息的操作类型**/
                    enum ActionType {Add,Remove,Stop,Start,Pause};
                
                    /** 消息结构 **/
                    ["java:getset"]
                    struct Message {
                         /**消息类型**/
                         MessageType type;
                         /**消息类型**/
                         ActionType action;
                         /**相关id**/
                         IntegerArray relatedIds;
                         /**扩展属性**/
                         CustomMap extention;
                    };
            };
        };
 };
};
#endif

 

 

service.ice

 

#ifndef _GENERATED
#define _GENERATED

#include <model.ice>

module com
{
   module alan
   {
       module generated
       {
         interface MessageServiceIce
         {

             /**
              *  向ice服务发送信息
              *  @param message 消息内容
              *  @return true 成功  false 失败
              */
                string sendMessage(model::Message msg);
             };
   };
   };
};
#endif

service2.ice

 

#ifndef _GENERATED
#define _GENERATED

#include <model.ice>

module com
{
   module alan
   {
       module generated
       {
         interface CalcServiceIce
         {

             /**
              *  服务端计算方法
              *  @param d1 计算数1
     *  @param d2 计算数2
     *  @param type 计算方式
              *  @return true 成功  false 失败
              */
                double calc(double d1, double d2, model::CalcType cal);
             };
   };
   };
};
#endif

 3.dos环境下执行

          cd E:/workspace/ICEService/slice

          E:/Ice-3.3.0/bin/slice2java -I. --output-dir=../src *.ice //生产代码

          E:/Ice-3.3.0/bin/slice2html -I. --output-dir=doc *.ice//生产doc文档，可以忽略

   将生产generated包下代码以jar包方式导出icetest.jar，并在项目中建立lib目录放入其中（把ice.jar也放入lib下，以备后用），可以删除其生产代码，以jar方式调用其代码。

 4,编写发布接口实现代码和服务器端代码

CalcServiceIceImpl .java实现数学计算：

 

public class CalcServiceIceImpl extends _CalcServiceIceDisp {

 public double calc(double num1, double num2, CalcType type,
   Current arg3) {
  double re = 0.0d;
  switch (type) {
  case Adds:
   re = num1 + num2;
   break;
  case Subtract:
   re = num1 - num2;
   break;
  case Multiply:
   re = num1 * num2;
   break;
  case Divide:
   re = num1 / num2;
   break;
  default:
   break;
  }
  return re;
 }

}

MessageServiceIceImpl .java实现发送消息

 

public class MessageServiceIceImpl extends _MessageServiceIceDisp {
 
 public String sendMessage(Message msg, Current __current) {
  String str = msg.getType() +" "+ msg.getAction()+" " + Arrays.toString(msg.getRelatedIds());
     return str;
 }
}

IceService .java实现服务器端接口注册：

 

public class IceService {

 public static void main(String[] args){
   int status = 0;
      Communicator ic = null;
   try{

   ic = Ice.Util.initialize(args);
   Ice.ObjectAdapter adapter = ic.createObjectAdapterWithEndpoints("testAdapter", "default -h *");
   ObjectImpl object1 = new MessageServiceIceImpl();
   ObjectImpl object2 = new CalcServiceIceImpl();

   adapter.add(object1, ic.stringToIdentity("messageService"));
   adapter.add(object2, ic.stringToIdentity("calcService"));
   adapter.activate(); 
   ic.waitForShutdown(); 
   } catch (Ice.LocalException e) {
    e.printStackTrace();
    status = 1;
   } catch (Exception e) {
    System.err.println(e.getMessage());
    status = 1;
   }
  if (ic != null) {
   try {
    ic.destroy();
   } catch (Exception e) {
    System.err.println(e.getMessage());
    status = 1;
   }
  }
  System.exit(status);  
 }
}

5，发布接口

  在项目下创建deploy文件夹，在其下创建config-ice.grid配置文件

IceGrid.InstanceName=IceTestServiceGrid

#
# The IceGrid locator proxy.
#
Ice.Default.Locator=IceTestServiceGrid/Locator:tcp -p 10000

#
# IceGrid registry configuration.
#
IceGrid.Registry.Client.Endpoints=tcp -p 10000
IceGrid.Registry.Server.Endpoints=tcp
IceGrid.Registry.Internal.Endpoints=tcp
IceGrid.Registry.Data=db/rescenter_registry
IceGrid.Registry.PermissionsVerifier=IceTestServiceGrid/NullPermissionsVerifier
IceGrid.Registry.AdminPermissionsVerifier=IceTestServiceGrid/NullPermissionsVerifier
IceGrid.Registry.SSLPermissionsVerifier=IceTestServiceGrid/NullSSLPermissionsVerifier
IceGrid.Registry.AdminSSLPermissionsVerifier=IceTestServiceGrid/NullSSLPermissionsVerifier

#
# Dummy username and password for icegridadmin.
#
IceGridAdmin.Username=foo
IceGridAdmin.Password=bar

#set server active Connection Managerment
Ice.ACM.Server=60
#
# IceGrid node configuration.
#

IceGrid.Node.Name=node1
IceGrid.Node.Endpoints=tcp
IceGrid.Node.Data=db/node1
IceGrid.Node.CollocateRegistry=1

IceGrid.Node.Trace.Activator=1
IceGrid.Node.Trace.Adapter=2
IceGrid.Node.Trace.Server=3

 根据需要在当前目录下创建db/node1，db/rescenter_registry文件夹

创建application.xml文件

<icegrid>
 <application name="icetest">
  <server-template id="icetest-server-template">
   <parameter name="index" />
   <server id="rescenter_${index}" exe="C:/Program Files/Java/jdk1.6.0_10/bin/java" activation="on-demand">
    <!---server -Xms128m -Xmx256m -d64 -XX:PermSize=128m-->
    <option>-classpath</option>
    <option>E:/workspace/ICEServer/bin</option>
    <option>-Djava.ext.dirs=E:/workspace/ICEServer/lib</option>
    <option>-server</option>
    <option>com.alan.ice.IceService</option>
    <adapter name="testAdapter" endpoints="tcp" replica-group="ReplicatedTestAdapter" />
    <property name="Ice.ThreadPool.Server.SizeMax" value="3000" />
   </server>
  </server-template>

  <replica-group id="ReplicatedTestAdapter">
  <load-balancing type="adaptive" load-sample="1" n-replicas="1" />
   <object identity="messageService" type="::com::alan::ice::MessageServiceIceImpl" />
   <object identity="calcService" type="::com::alan::ice::CalcServiceIceImpl" />
  </replica-group>
  <node name="node1">
   <server-instance template="icetest-server-template" index="1" />
  </node>
 </application>

</icegrid>

创建start_server.bat

path=%path%;E:/Ice-3.3.0/bin
icegridnode --Ice.Config=config-ice.grid --deploy application.xml
pause

创建完成后就可以双击start_server.bat来启动服务了

6，创建客户端调用项目ICEClient，导入ice.jar以及前面生产的icetest.jar,在项目下创建IceClient .java

public class IceClient {

   public static void main(String[] args){
    int status = 0; 
    Communicator ic = null; 
    try{
       String str = String.format("%s:%s -h %s -p %s", "IceTestServiceGrid/Locator","tcp" ,"localhost", "10000");
       InitializationData localInitializationData = new InitializationData();
       localInitializationData.properties = Util.createProperties();
       localInitializationData.properties.setProperty("Ice.Default.Locator", str);
       ic = Util.initialize(localInitializationData);
          MessageServiceIcePrx messageclient = MessageServiceIcePrxHelper.checkedCast(ic.stringToProxy("messageService"));
          CalcServiceIcePrx calcclient = CalcServiceIcePrxHelper.checkedCast(ic.stringToProxy("calcService"));  
          if (messageclient == null || calcclient == null ) 
         throw new Error("Invalid proxy");
          Map<String ,String > map = new HashMap<String, String>();
       Message msg = new Message(MessageType.INFO, ActionType.Add,new int[]{1},map);
       System.out.println(messageclient.sendMessage(msg));//调用接口完成消息发送
       System.out.println(calcclient.calc(12, 4, CalcType.Adds));//调用接口完成数学计算
    } catch (Ice.LocalException e) {
      e.printStackTrace();
      status = 1;
    } catch (Exception e) {
    System.err.println(e.getMessage());
    status = 1;
   }
   if (ic != null) {
   try {
    ic.destroy();
   } catch (Exception e) {
    System.err.println(e.getMessage());
    status = 1;
   }
  }
     System.exit(status);
 }
}

7，执行IceClient ,控制台输出

 

INFO Add [1]
16.0

 

到此调用成功,实例完成。