zipcodeserverimpl_skel.java

一个java的rmi实例

import java.lang.reflect.*;

public class ZipCodeServerImpl_skel {
    
 
	/** Creates a new instance of ZipCodeServerImpl_skel */
    	public ZipCodeServerImpl_skel() {
    	}
    

	// This method unmarshalls the method args and calls the actual initialise
	// method in the local object 
     	public String initialise(String s, Object localObjRef)
    	{	String[] arr = s.split(",");
     	  	ZipCodeList prev = new ZipCodeList(arr[6], arr[7], null);
        	ZipCodeList start = prev;
        
        	// Unmarshall Method Args
        	for(int i = 8; i < arr.length; i+=2){
          	ZipCodeList n = new ZipCodeList(arr[i], arr[i+1], null);
          	prev.next = n;
          	prev = n;
        	}
             
        	try{
 	  	Class c = localObjRef.getClass();
        	Class[] paramTypes = {start.getClass()};
        	Method m = c.getMethod("initialise", paramTypes);
        
        	Object[] args = {start};
        	m.invoke(localObjRef, args);
        	}catch(Exception e){}
        	//Marshall reply and return to yourRMI
        	return "It worked";  
    	}

    	// This method unmarshalls the method args and calls the actual find
	// method in the local object
    	public String find(String args, Object localObjRef)
    	{	//Unmarshall args
	
        	String reply = "";

	  	try{
	  	// Search the list.
        	Class c = localObjRef.getClass();
        	Class[] paramTypes = {args.getClass()};
        	Method m = c.getMethod("find", paramTypes);
        
        	Object[] o = {args};
        	reply = (String)m.invoke(localObjRef, o);
        	}catch(Exception e){}
        
		//Marshall reply and return to yourRMI
        	return reply;
    	}

    	// This method unmarshalls the method args and calls the actual findAll
	// method in the local object
    	public String findAll(Object localObjRef)
    	{	String temp = "";
	    	try
		{	Class c = localObjRef.getClass();	
        		Class[] cArr = {};
        		Method m = c.getMethod("findAll", cArr);	
	  		Object[] obj = {};	
        		ZipCodeList newlist = (ZipCodeList)m.invoke(localObjRef, obj);
        
 	  		ZipCodeList iter = newlist;
    	  		int length = 0;
  	  		while(iter != null)
			{	length++;
				iter = iter.next;
	  		}
		
	  		temp += "ZipCodeList," ;
	  		temp += length + ",";
	  		temp += "String,city,";
	  		temp += "String,ZipCode,";
		
	  		iter = newlist;
		
	   		while(iter != null)
			{	temp += iter.city + "," ;
	     			temp += iter.ZipCode + "," ;
	     			iter = iter.next;
	  		}

        	}catch(Exception e)
		{	System.out.println(e);
		}
        	
		//return the marshalled reply to yourRMI
        	return temp;
    	}

    	// The following method calls the actual printAll method 
	// in the local object reference
    	public String printAll(Object localObjRef) 
    	{	try{		
	  	Class c = localObjRef.getClass();
        	Method m = c.getMethod("printAll", null);
        	m.invoke(localObjRef, null);
        	}catch(Exception e)
		{	System.out.println(e.getMessage());
		}

        	//return the marshalled reply to yourRMI
        	return "It worked";
    	}
}