How can I explicitly pass the HttpState when executing a method?
The only way I could find (and the one used in the authentication examples) is:
client.getState().setCredentials(
new AuthScope("www.verisign.com", 443, "realm"),
new UsernamePasswordCredentials("username", "password")
);
But this will set the state on the client level, not the method level IMO.
This still suggests that I require different HttpClient objects.
Or am I still missing something?!
Keesjan
________________________________
From: Roland Weber [mailto:[EMAIL PROTECTED]
Sent: Tue 10/11/2005 11:07 AM
To: HttpClient User Discussion
Subject: Re: Use a single or multiple client instances?
Hello Keesjan,
you should keep a separate HttpState for each user of MyClass.
Authentication credentials and cookies are set in the HttpState,
and the HttpClient provides only a default HttpState. There is
no need to have different HttpClient objects if you pass the
HttpState explicitly when executing a method.
A static attribute should do just fine for either 1 or 2.
3 will have to be answered by somebody else.
cheers,
Roland
"Keesjan van Bunningen" <[EMAIL PROTECTED]>
11.10.2005 10:52
Please respond to
"HttpClient User Discussion"
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Subject
Use a single or multiple client instances?
For each request to a remote server I create a new instance of MyClass
that uses/wraps HttpClient.
1. Can I use a single instance of the HttpClient (as a static field)
inside MyClass or do I need to instantiate a new one for each new instance
of MyClass?
Because I use authentication and the credentials are set on the client, I
presume I require a new instance for each request.
2. If I require a new instance of HttpClient for each instance of MyClass,
how do I share the multi-threaded connection manager? Can I include the
MultiThreadedHttpConnectionManager as a static field in MyClass and pass
this as the parameter in the constructor of HttpClient?
3. If I want to apply new connection settings on-the-fly, is it
possible/wise to update these settings in the existing connection manager?
For instance, what happens if the MaxTotalConnections is currently set to
10 and the connection manager has 10 connections open, but I change the
MaxTotalConnections value to 6?
class MyClass {
private static final HttpConnectionManager manager = new
MultiThreadedHttpConnectionManager();
private HttpClient client;
public MyClass() {
init();
}
private void init() {
int maxConnections = (...) // loaded on-the-fly and may change over
time
this.client = new HttpClient(manager);
// set/update settings
this.client.getHttpConnectionManager().getParams().setMaxTotalConnections(maxConnections);
}
(...)
}
Kind regards,
Keesjan van Bunningen
Finalist IT Group - The Netherlands
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