This was in the spirit of one of my suggestions and probably how I
would approach the problem to save them/me having to create a Tomcat
request harness .. encapsulate the service in a static method and call
that (cohesive).
Have a super day,
John
On 5/8/19, Christopher Schultz wrote:
> -BE
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Terence and Paul,
On 5/6/19 14:36, Terence M. Bandoian wrote:
> On 5/6/2019 10:45 AM, Paul Carter-Brown wrote: 2) Can the servlets
> you want to use be refactored so that the underlying functionality
> is exposed in a way that doesn't require any co
On 06/05/2019 17:47, Owen Rubel wrote:
> I didn't think that TomEE was Tomcat. Wasn't it it's own thing??? I mean
> TomEE is this separate project maintained by this up here in Seattle vs
> Tomcat which is an Apache Project.
Apache Tomcat are Apache TomEE are both Apache projects.
Apache TomEE sp
On 5/6/2019 10:45 AM, Paul Carter-Brown wrote:
Yea, but the issue is that only works when calling in the context of a
current servlet call.
Here is the kind of problem I want to solve:
@WebServlet(name = "MyExample", urlPatterns = {"/example"}, loadOnStartup =
1)
public class Example extends Ht
I didn't think that TomEE was Tomcat. Wasn't it it's own thing??? I mean
TomEE is this separate project maintained by this up here in Seattle vs
Tomcat which is an Apache Project.
Owen Rubel
oru...@gmail.com
On Mon, May 6, 2019 at 9:16 AM Paul Carter-Brown
wrote:
> Hi John,
>
> See original re
I would trace tomcat and recreate a servlet request .. see if I could
hack it in that way (assuming that localhost traffic isn't fast
enough). Normalizing on HTTP/TCP will be more maintainable, though?
Can somebody suggest a good place for a breakpoint?
Any other suggestions?
John
On 5/6/19,
Hi John,
See original request. It's pretty much a Kafka/Servlet proxy/gateway:
I'm trying to design a Kafka consumer and producer that will run inside the
tomcat jvm and pick up messages off a Kafka topic and translate them into a
servlet request and pass it through tomcat and then when the respo
You could try debugging the tomcat code and find out how, right after
it parses the TCP request, it invokes the servlet. You can then
create your own harness for tomcat code after initializing the
appropriate context for the request to tomcat. I don't know off hand
where in the tomcat code this c
Yea, but the issue is that only works when calling in the context of a
current servlet call.
Here is the kind of problem I want to solve:
@WebServlet(name = "MyExample", urlPatterns = {"/example"}, loadOnStartup =
1)
public class Example extends HttpServlet {
@PersistenceContext
private
For reference, I did find this after searching "calling a servlet
programmatically":
https://docs.oracle.com/cd/E19146-01/819-2634/abxbn/index.html
On 5/6/19, Paul Carter-Brown wrote:
> I think we are completely missing each other. Forget sockets - that was
> just an example. I have code running
Another thought is that servlets maintain contextual information and
resources .. that's nice, saves a lot of time. As soon as you need a
database resource or an extension of your pruned-back HTTP
implementation on the server socket, you'll be rebuilding what Tomcat
has already done?
On 5/6/19,
Class loaders maintain isolation of contexts, so calling a method on a
different servlet can be tricky, but that is possible. Although, take
into account that the container maintains pools of servlets, so
something like a static service method, assuming you can crack the
class loader nut, might wo
I think we are completely missing each other. Forget sockets - that was
just an example. I have code running in a Tomcat App server which is not
managed by Tomcat and is not initiated by anything within Tomcat. That code
now wants to call a servlet hosted in that very same JVM. Any way to do
that w
Sockets are an implementation of TCP/UDP inherently.
Perhaps a mountaintop signal fire?
;)
John
On 5/6/19, Paul Carter-Brown wrote:
> lol on the Semaphore Telegraph,
>
> I can't use a request dispatcher as the request is being initiated from
> code that has no context. I already have it worki
lol on the Semaphore Telegraph,
I can't use a request dispatcher as the request is being initiated from
code that has no context. I already have it working with HTTP using
asynchttp library, but I want to avoid the overhead. E.g. lets say I wrote
my own server socket listener on port 1 running
If you're wanting to forward control to another servlet deployed in
the same context:
https://www.javatpoint.com/requestdispatcher-in-servlet
If you are okay going through TCP to facilitate some future or current
distribution of services, Use HTTPURLConnection (not sure what you're
wanting to do w
Hi John,
Thanks for your feedback.
The request I'm initiating should not or need not carry any context from
the originating code. There is also no session to worry about as its just
for rest calls. So basically I have the headers, path and body and need to
generate a http servlet request and get
Another thought .. you can do some request dispatching, but without
knowing more about the tools you're using, I can't say for sure if
this is the direction you'll want to go.
On 4/29/19, Paul Carter-Brown wrote:
> Hi
>
> I'm trying to design a Kafka consumer and producer that will run inside the
This is one of my favorite things.
You'll need to retransmit headers, but by and large it's doable.
Management of contexts can be tricky. Don't forget that the target
service will have a difference context (database connection context
has bitten me in the past on this type of task).
I do my sess
Hi
I'm trying to design a Kafka consumer and producer that will run inside the
tomcat jvm and pick up messages off a Kafka topic and translate them into a
servlet request and pass it through tomcat and then when the response is
complete then translate it into a Kafka message and put it onto anothe
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