On Wed, 2018-05-16 at 15:56 +0000, Daly, Paul wrote:
> I canot speak for HttpClient5, but If you are just looking to change
> some timeouts on the request, in 4.5.5, I do this (as recommended
> from this emai list some time ago!).
>
> I guess its not too differenent for HC5 (?)
>
>
> - Create a shared HTTPClient instance. this is used by all requests
> in the JVM and is instantiated on first use.
> - each request (thread) grabs the shared client (it is thread safe)
> - each request (thread) creates its own request context
> - set the request type specific timeout on the request context (note
> internally in our app we apply different timeouts depending on
> several factors (message type,client etc))
> - execute the request on the shared client with the request context
>
> Seems to work fine...
>
+1. Precisely how it was intended.
Oleg
> Some snippets
>
> // in a client factory class I create the client based on sensible
> timeout defaults
> // this populates a static httpclient which can be returned by a
> static getClient method to all threads needing a httpClient
> CloseableHttpClient newClient =
> HttpClientBuilder.create().useSystemProperties()
> .setDefaultRequestConfig(config).setMaxConnPerRoute(max
> ConnectionsPerRoute)
> .setMaxConnTotal(totalMaxConnection).evictExpiredConnec
> tions()
> .evictIdleConnections(idleLife,
> TimeUnit.MINUTES).setConnectionTimeToLive(maxLife, TimeUnit.MINUTES)
> .build();
>
>
> statichttpClient = newClient;
>
>
> // within the request
> httpClient = HttpClientFactory.getClient();
>
> // create the context for this thread
> HttpClientContext httpContext = HttpClientContext.create();
> httpContext.setRequestConfig(getRequestConfig());
> HttpResponse serviceResponse = httpClient.execute(httpRequest,
> httpContext);
>
>
> // make the request config
> private RequestConfig getRequestConfig() throws
> PCEConfigParamNotFoundException {
>
> // setup request timeouts
> return RequestConfig.custom().setConnectionRequestTimeout(aaa).
> setConnectTimeout(bbb). setSocketTimeout(ccc).build();
> }
>
>
>
>
>
>
>
> -----Original Message-----
> From: / [mailto:isla...@yahoo.co.uk.INVALID]
> Sent: Wednesday, May 16, 2018 4:01 PM
> To: httpclient-users@hc.apache.org
> Subject: Re: Fwd: HttpClient5 : simple example on how to configure
> timeout after build()
>
> Thanks,
>
> if I understood correctly, the pattern should be:
>
> 1) Create a RequestConfig (rc) object and keep it.
> 2) If you need to modify httpclient, modify the kept RequestConfig
> object
> 3) After doing said modifications **re-create httpclient** with kept
> RequestConfig.
> 4) Keep the RequestConfig.
> 5) Keeping a client and modifying it as see fit is/will be
> deprecated.
>
> Questions:
> can I extract a RequestConfig from current client, modify its
> timeout
> and then re-create a client with this cloned-and-modified
> RequestConfig?
> (so as not to keep a RequestConfig at all but remember all the
> settings
> I did to my client).
>
>
>
> thanks
>
> On 16/05/18 17:42, Shawn Heisey wrote:
> > On 5/16/2018 8:09 AM, / wrote:
> > > I am looking for an example on how to configure HttpClient5 after
> > > it
> > > has been built and how to extract/print some of its
> > > configuration.
> > >
> > > Once I have an HttpClient object, how do I go about and change
> > > some of
> > > its settings, for example connection timeout or user-agent-string
> > > or
> > > even cookie jar?
> > >
> > > I am looking for the most straight-forward and efficient way to
> > > do
> > > this. I don't care about "fluent" APIs neither about streams etc.
> > >
> > > something like:
> > >
> > > myclient.setParameter(connection_timeout, 1000);
> >
> > For the most part, you can't change settings on an existing
> > HttpClient
> > object. Since about 4.3, the objects and methods that allow
> > clients to
> > be changed after creation are all deprecated. That capability is
> > completely gone in 5.x. Default settings are managed with builder
> > objects using fluent methods, then you create the client object
> > with the
> > indicated settings. Here's how I create a client object with
> > explicit
> > defaults using non-deprecated code in the 4.5 version:
> >
> > RequestConfig rc =
> > RequestConfig.custom().setConnectTimeout(15000)
> > .setSocketTimeout(120000).build();
> > httpClient = HttpClients.custom().setDefaultRequestConfig(rc)
> > .setMaxConnPerRoute(300).setMaxConnTotal(5000).disableAutomaticRetr
> > ies()
> > .build();
> >
> > The httpClient field is an instance of HttpClient. I do not know
> > what
> > kind of adjustments might need to be made for 5.x, but that should
> > give
> > you an idea about how things are done since the way you're trying
> > to do
> > it is no longer available.
> >
> > Many of the settings you might be interested in can also be changed
> > at
> > the request level. I do not know HOW to do this, only that it CAN
> > be
> > done. I think this is what Oleg was referring to in his reply.
> >
> > Thanks,
> > Shawn
> >
> >
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> > g
> >
>
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