httpclienttimeout.java

这是一个matlab的java实现。里面有许多内容。请大家慢慢捉摸。

package edu.umass.cs.mallet.projects.dex.web;

import sun.net.www.http.HttpClient;
import sun.net.www.MessageHeader ;
import sun.net.ProgressEntry ;

import java.net.*;
import java.io.*;
public class HttpClientTimeout extends HttpClient
{
    public HttpClientTimeout(URL url, String proxy, int proxyPort) throws IOException
    {
	super(url, proxy, proxyPort);
    }
    
    public HttpClientTimeout(URL url) throws IOException
    {
	super(url, null, -1);
    }
    
    public void SetTimeout(int i) 
	throws SocketException 
    { 
	this.timeout = i;
	serverSocket.setSoTimeout(i) ; 
    } 
    
    public boolean parseHTTP(MessageHeader header, ProgressEntry entry) 
	throws java.io.IOException 
    { 
	if( this.timeout != -1 ) { 
	    try { 
		serverSocket.setSoTimeout(timeout) ;
	    } catch( SocketException e ) { 
		throw new java.io.IOException("unable to set socket timeout!") ; 
	    } 
	} 
	
	return super.parseHTTP(header, entry) ; 
    } 
    
    /* This class has no public constructor for HTTP.  This method is used to
     * get an HttpClient to the specifed URL.  If there's currently an
     * active HttpClient to that server/port, you'll get that one.
     *
     * no longer syncrhonized -- it slows things down too much
     * synchronize at a higher level
     */
    public static HttpClientTimeout GetNew(URL url)  
	throws IOException {
	/* see if one's already around */
	HttpClientTimeout ret = (HttpClientTimeout) kac.get(url);
	if (ret == null) {
	    ret = new HttpClientTimeout (url);  // CTOR called openServer()
	} else {
	    ret.url = url;
	}
	// don't know if we're keeping alive until we parse the headers
	// for now, keepingAlive is false
	return ret;
    }
    
    public void Close() throws IOException
    {
	serverSocket.close();
    }
    
    public Socket GetSocket()
    {
	return serverSocket;
    }
    
    int timeout;
}