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From Joan Balagueró <joan.balagu...@grupoventus.com>
Subject TRANSLATING CODE FROM HTTPCLIENT3 TO HTTPCLIENT4
Date Wed, 28 Jan 2009 16:17:41 GMT
Hello,

 

I’m migrating code from httpclient3 to httpcllient4, and there are some
things I do with httpclient3 that I’m not sure how to do with httpclient4. I
think my problems are in how to enable/disable cookies at connection manager
level, and how to manage idle connections (IdleConnectionHanfdler) at
connection manager level too.

 

 

---- The code for httpclient3 is:
----------------------------------------------------------------------------
----------------------

 

this.objHttp = new HttpClient(new MultiThreadedHttpConnectionManager());

this.objHttp.getHttpConnectionManager().getParams().setMaxTotalConnections(m
axConnections);      // maxConnections

this.objHttp.getHttpConnectionManager().getParams().setConnectionTimeout(con
nectionTimeout);      // connectionTimeout

this.objHttp.getParams().setSoTimeout(responseTimeout);    //
responseTimeout

  

// Manage ‘idle’ connections.

if (idleTimeout > 0) 

{

 this.ictt = new IdleConnectionsHandler();

 this.ictt.addConnectionManager(this.objHttp.getHttpConnectionManager());

 this.ictt.setTimeoutInterval(idleInterval);

 this.ictt.setConnectionTimeout(idleTimeout);

 this.ictt.start();

}

   

// Timeout for taking connections from pool (1 ms --> we don’t wait)

this.objHttp.getParams().setConnectionManagerTimeout(1);

   

// "stale connections" and enable/disable "cookies".

this.objHttp.getHttpConnectionManager().getParams().setStaleCheckingEnabled(
true);

this.objHttp.getParams().setCookiePolicy(useCookies ? CookiePolicy.RFC_2109
: CookiePolicy.IGNORE_COOKIES); 

 

 

---- Now the code for httpclient4:
----------------------------------------------------------------------------
----------------------

 

this.objHttpParams = new BasicHttpParams();

HttpProtocolParams.setVersion(this.objHttpParams, HttpVersion.HTTP_1_1);

      

SchemeRegistry schemeRegistry = new SchemeRegistry();

schemeRegistry.register(new Scheme("http",
PlainSocketFactory.getSocketFactory(), 80));

schemeRegistry.register(new Scheme("https",
SSLSocketFactory.getSocketFactory(), 443));

      

ConnManagerParams.setMaxTotalConnections(this.objHttpParams,
maxConnections);     // maxConnections

HttpConnectionParams.setConnectionTimeout(this.objHttpParams,
connectionTimeout); // connectionTimeout

HttpConnectionParams.setSoTimeout(this.objHttpParams, responseTimeout);
// responseTimeout

   

// Manage ‘idle’ connections.

if (idleTimeout > 0)

{

 NO IDEA. I could see ‘IdleConnectionHandler’ and the method ‘add’, but at
connection level and not at connection manager level.

}   

 

// Timeout for taking connections from pool (1 ms --> we don’t wait)

ConnManagerParams.setTimeout(this.objHttpParams, 1);

   

// "stale connections" and "cookies".

HttpConnectionParams.setStaleCheckingEnabled(true);

if (useCookies) new RFC2109SpecFactory().newInstance(this.objHttpParams);
<------ is this OK? And how to disable cookies??????

 

// And create the 'HttpClient' with the 'ThreadSafeClientConnManager'.

ClientConnectionManager cm = new
ThreadSafeClientConnManager(this.objHttpParams, schemeRegistry);

this.objHttp = new DefaultHttpClient(cm, this.objHttpParams);

 

 

 

Thanks in advance,

 

Joan.

 


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