Those parameters are only available in JDK 1.4. That is the reason we can not provide them in the standard code base. You can still extend the DefaultProtocolSocketFactory to return a custom configured socket and register it with the Protocol class for the http protocol scheme. Code like so:
Protocol.registerProtocol("http", new Protocol("http", new CustomSocketFactory(), 80));
public class CustomSocketFactory extends DefaultProtocolSocketFactory {
/**
* Constructor for DefaultProtocolSocketFactory.
*/
public CustomSocketFactory () {
super();
} /**
* @see #createSocket(java.lang.String,int,java.net.InetAddress,int)
*/
public Socket createSocket(
String host,
int port,
InetAddress clientHost,
int clientPort
) throws IOException, UnknownHostException {
Socket s = super.createSocket(host, port, clientHost, clientPort);
customize(s);
return s;
} /**
* @see ProtocolSocketFactory#createSocket(java.lang.String,int)
*/
public Socket createSocket(String host, int port)
throws IOException, UnknownHostException {
Socket s = super.createSocket(host, port);
customize(s);
return s;
} private customize(Socket s) {
s.setSendBufferSize(5000);
//customize as you like
}
}Wolfgang Hoschek wrote:
Hi,
As part of a webapp, I'm trying to abuse commons-httpclient as as client to a high-performance static file download service over high bandwidth long latency network links. Here, tuning TCP windows sizes can make a drastic difference.
Is there any support in httpclient to configure the socket SO_SNDBUF and SO_RCVBUF, to be set via
http://java.sun.com/j2se/1.4.2/docs/api/java/net/Socket.html#setSendBufferSize(int)
For more background on why these things matter, see, for example:
http://www-didc.lbl.gov/tcp-wan-perf.pdf
Wolfgang.
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