Winfried Gerlach created HTTPCLIENT-2385:
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Summary: Make Default...ClientConnection extensible
Key: HTTPCLIENT-2385
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2385
Project: HttpComponents HttpClient
Issue Type: Improvement
Reporter: Winfried Gerlach
I'd like to improve extensibility of {{DefaultManagedHttpClientConnection}} and
{{{}DefaultManagedAsyncClientConnection{}}}. My request somehow resembles the
very old issue HTTPCLIENT-1374, in which {{DefaultManagedHttpClientConnection}}
was made public.
IMHO, implementations named {{Default...}} should both demonstrate best
practices of API usage and act as easily modifiable blueprints for HttpClient
users. This is currently not the case, because both
{{DefaultManagedHttpClientConnection}} and
{{DefaultManagedAsyncClientConnection}} are final and
{{DefaultManagedHttpClientConnection}} uses package-private classes
({{{}Logging...*{}}}).
So if you want to write your own, slightly modified
{{MyManagedHttpClientConnection}} (e.g., change some logging or call a callback
when a method is invoked), you will need to extend the super class
{{DefaultBHttpClientConnection}} (which is public non-final), copy a lot of
code from {{DefaultManagedHttpClientConnection}} and possibly even create your
own copies of {{{}LoggingInputStream{}}}, {{{}LoggingOutputStream{}}}, and
{{{}LoggingSocketHolder{}}}. Something that could be done with very few lines
of code, maybe even in an anonymous class, has then become multiple classes
with several hundred LoC to review and maintain (especially if
{{DefaultBHttpClientConnection}} or {{DefaultManagedHttpClientConnection}} are
changed in future versions of HttpClient).
I suggest to
* make {{DefaultManagedHttpClientConnection}} and
{{DefaultManagedAsyncClientConnection}} public non-final
* make {{{}LoggingInputStream{}}}, {{{}LoggingOutputStream{}}}, and
{{LoggingSocketHolder}} public
This shouldn't hurt anyone (doesn't break APIs) and help some users like our
project.
I'll provide a PR via GitHub.
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