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From: Antony Bowesman <Antony.Bowesman@williamhill.com.au>
To: "user@jmeter.apache.org" <user@jmeter.apache.org>
Subject: HTTP requests and HeaderManager
Thread-Topic: HTTP requests and HeaderManager
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Date: Fri, 23 Dec 2016 03:44:56 +0000
Message-ID: <42f1b910a4974789a5b81fe8ef1d1ed7@SY3WNPRINEX02.prod.sbet.com.au>
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Could be way off target here, as I'm a bit of a newbie.

I have a custom java sampler that uses a HeaderManager to manage headers in=
 multiple requests. My sampler makes a number of http requests in a single =
sample to form part of a dynamic 'transaction' and this means that differen=
t requests may need different headers, e.g. some could be GET, some POST, s=
ome require CSRF headers etc.

I'm using an HTTPSamplerBase implementation and it appears there's no disti=
nction between a default header and a request header that just applies to t=
he request to be sent, could be wrong, but I can't see any way to separate =
the two in the API.

My solution is to manage default and request headers is a wrapper class tha=
t will remove headers after the request is made, so they do not pollute sub=
sequent requests.

However, from my basic reading of the code, the header manager is using an =
ArrayList to store headers and to remove a header, it has to iterate that l=
ist.

Is there any reason why it would not be more sensible to use a LinkedHashSe=
t. Slightly additional overhead in storage, but much faster in removing ele=
ments.

Cheers


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