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Posted to users@camel.apache.org by "Jan Bares, WOOD & Co." <ja...@wood.cz.INVALID> on 2025/01/29 09:06:42 UTC

ProducerTemplate doesn't work as expected

Hi,

In my test class, I am trying to send a message to a route under test using the ProducerTemplate sendXXX() method. I assumed this would simulate an incoming message for the endpoint, but it seems that this is not the case. For example, with the File endpoint, the file is physically created on the file system and then read by the endpoint:

ProducerTemplate producerTemplate = camelContext.createProducerTemplate();
producerTemplate.sendBodyAndHeaders(
    "file:testFolder/(?i).*\\.txt",
    "Test message content",
    Map.of(Exchange.FILE_NAME, "testFile.txt")
);

This code creates a testFile.txt file in the testFolder.

For a spring-rabbitmq endpoint, I cannot use the producer template at all. It appears that the message is sent to the default exchange, and due to our RabbitMQ configuration, the message is not routed to the correct queue.

Is this behavior documented somewhere? Additionally, how can I simulate incoming messages without relying on external resources like the file system or RabbitMQ?

Thanks,  Jan






________________________________
DISCLAIMER
WOOD & Company Financial Services, a.s. is authorized and regulated by the Czech National Bank as its Home State Regulator and by relevant local regulatory authorities in the jurisdictions where it operates. For further information about WOOD & Co., its investment services, financial instruments and associated risks, safeguard client assets (incl. compensation schemes) and contractual relationship please see our website at www.wood.com<http://www.wood.com/>. Unless otherwise stated, this transmission is neither an offer nor the solicitation of an offer to sell or purchase any investment. All estimates, opinions and other information contained herein are subject to change without notice and are provided in good faith but without legal responsibility or liability. Opinion may be personal to the author and may not reflect the opinions of WOOD & Co. Communications from sales persons, sales traders or traders should not be regarded as investment research and may contain opinions or trading ideas which are different from WOOD & Co. investment research opinions. This e-mail and any attachments are confidential and may be privileged or otherwise protected from disclosure. If you are not a named addressee you must not use, disclose, distribute, copy, print or rely on this e-mail and any of its attachments. Please notify the sender that you have received this email by mistake by replying to the email, and then delete the email and any copies of it. Although WOOD & Co. routinely screens e-mails for viruses, addressees should scan this e-mail and any attachments for viruses. WOOD & Co. makes no representation or warranty as to the absence of viruses in this e-mail or any attachments. Please note that to ensure regulatory compliance and for the protection of our clients and business, we may monitor and read e-mails sent to and from our server(s).

Re: ProducerTemplate doesn't work as expected

Posted by Claus Ibsen <cl...@gmail.com>.
Hi

The book has a full chapter on testing, and how to use mock / advice with
etc.
Also there is testing doc pages on the website.

On Wed, Jan 29, 2025 at 10:30 AM Jan Bares, WOOD & Co.
<ja...@wood.cz.invalid> wrote:

> Thanks, I have this book, it's from 2018, a lot changed since then in
> Camel 4.6. The book also says." This is a useful feature for getting direct
> access to any endpoint in Camel.". What are my options to test routes that
> require RabbitMQ?
>
> * use the ProducerTemplate and pass a message to the correct exchange on
> RabbitMQ - this is unfortunate as this requires RabbitMQ and understanding
> its routing setup
> * restructure our routes and pass the RabbitMQ from Exchange to a new
> "direct" route and test just the direct route
> * advice the incoming endpoint with direct or mock endpoint
> * ??
>
> Kind regards, Jan
>
> > -----Original Message-----
> > From: Claus Ibsen <cl...@gmail.com>
> > Sent: Wednesday, January 29, 2025 10:09 AM
> > To: users@camel.apache.org
> > Subject: Re: ProducerTemplate doesn't work as expected
> >
> > Hi
> >
> > Its from the eye of the beholder. Camel produces a message, ie sending a
> > message from Camel to X. In this case Camel creates a file.
> > If you want to read a file, then let Camel consume from the file.
> >
> > If you want to learn Camel more then read the Camel in Action book, the
> > first chapter is free.
> >
> >
> > On Wed, Jan 29, 2025 at 10:07 AM Jan Bares, WOOD & Co.
> > <ja...@wood.cz.invalid> wrote:
> >
> > > Hi,
> > >
> > > In my test class, I am trying to send a message to a route under test
> > > using the ProducerTemplate sendXXX() method. I assumed this would
> simulate
> > > an incoming message for the endpoint, but it seems that this is not the
> > > case. For example, with the File endpoint, the file is physically
> created
> > > on the file system and then read by the endpoint:
> > >
> > > ProducerTemplate producerTemplate =
> camelContext.createProducerTemplate();
> > > producerTemplate.sendBodyAndHeaders(
> > >     "file:testFolder/(?i).*\\.txt",
> > >     "Test message content",
> > >     Map.of(Exchange.FILE_NAME, "testFile.txt")
> > > );
> > >
> > > This code creates a testFile.txt file in the testFolder.
> > >
> > > For a spring-rabbitmq endpoint, I cannot use the producer template at
> all.
> > > It appears that the message is sent to the default exchange, and due
> to our
> > > RabbitMQ configuration, the message is not routed to the correct queue.
> > >
> > > Is this behavior documented somewhere? Additionally, how can I simulate
> > > incoming messages without relying on external resources like the file
> > > system or RabbitMQ?
> > >
> > > Thanks,  Jan
> > >
> > >
> > >
> > >
> > >
> > >
> > > ________________________________
> > > DISCLAIMER
> > > WOOD & Company Financial Services, a.s. is authorized and regulated by
> the
> > > Czech National Bank as its Home State Regulator and by relevant local
> > > regulatory authorities in the jurisdictions where it operates. For
> further
> > > information about WOOD & Co., its investment services, financial
> > > instruments and associated risks, safeguard client assets (incl.
> > > compensation schemes) and contractual relationship please see our
> website
> > > at www.wood.com<http://www.wood.com/>. Unless otherwise stated, this
> > > transmission is neither an offer nor the solicitation of an offer to
> sell
> > > or purchase any investment. All estimates, opinions and other
> information
> > > contained herein are subject to change without notice and are provided
> in
> > > good faith but without legal responsibility or liability. Opinion may
> be
> > > personal to the author and may not reflect the opinions of WOOD & Co.
> > > Communications from sales persons, sales traders or traders should not
> be
> > > regarded as investment research and may contain opinions or trading
> ideas
> > > which are different from WOOD & Co. investment research opinions. This
> > > e-mail and any attachments are confidential and may be privileged or
> > > otherwise protected from disclosure. If you are not a named addressee
> you
> > > must not use, disclose, distribute, copy, print or rely on this e-mail
> and
> > > any of its attachments. Please notify the sender that you have received
> > > this email by mistake by replying to the email, and then delete the
> email
> > > and any copies of it. Although WOOD & Co. routinely screens e-mails for
> > > viruses, addressees should scan this e-mail and any attachments for
> > > viruses. WOOD & Co. makes no representation or warranty as to the
> absence
> > > of viruses in this e-mail or any attachments. Please note that to
> ensure
> > > regulatory compliance and for the protection of our clients and
> business,
> > > we may monitor and read e-mails sent to and from our server(s).
> > >
> >
> >
> > --
> > Claus Ibsen
> > -----------------
> > @davsclaus
> > Camel in Action 2: https://www.manning.com/ibsen2
>
>
>
>
>
> ________________________________
> DISCLAIMER
> WOOD & Company Financial Services, a.s. is authorized and regulated by the
> Czech National Bank as its Home State Regulator and by relevant local
> regulatory authorities in the jurisdictions where it operates. For further
> information about WOOD & Co., its investment services, financial
> instruments and associated risks, safeguard client assets (incl.
> compensation schemes) and contractual relationship please see our website
> at www.wood.com<http://www.wood.com/>. Unless otherwise stated, this
> transmission is neither an offer nor the solicitation of an offer to sell
> or purchase any investment. All estimates, opinions and other information
> contained herein are subject to change without notice and are provided in
> good faith but without legal responsibility or liability. Opinion may be
> personal to the author and may not reflect the opinions of WOOD & Co.
> Communications from sales persons, sales traders or traders should not be
> regarded as investment research and may contain opinions or trading ideas
> which are different from WOOD & Co. investment research opinions. This
> e-mail and any attachments are confidential and may be privileged or
> otherwise protected from disclosure. If you are not a named addressee you
> must not use, disclose, distribute, copy, print or rely on this e-mail and
> any of its attachments. Please notify the sender that you have received
> this email by mistake by replying to the email, and then delete the email
> and any copies of it. Although WOOD & Co. routinely screens e-mails for
> viruses, addressees should scan this e-mail and any attachments for
> viruses. WOOD & Co. makes no representation or warranty as to the absence
> of viruses in this e-mail or any attachments. Please note that to ensure
> regulatory compliance and for the protection of our clients and business,
> we may monitor and read e-mails sent to and from our server(s).
>


-- 
Claus Ibsen
-----------------
@davsclaus
Camel in Action 2: https://www.manning.com/ibsen2

RE: ProducerTemplate doesn't work as expected

Posted by "Jan Bares, WOOD & Co." <ja...@wood.cz.INVALID>.
Thanks, I have this book, it's from 2018, a lot changed since then in Camel 4.6. The book also says." This is a useful feature for getting direct access to any endpoint in Camel.". What are my options to test routes that require RabbitMQ?

* use the ProducerTemplate and pass a message to the correct exchange on RabbitMQ - this is unfortunate as this requires RabbitMQ and understanding its routing setup
* restructure our routes and pass the RabbitMQ from Exchange to a new "direct" route and test just the direct route
* advice the incoming endpoint with direct or mock endpoint
* ??

Kind regards, Jan

> -----Original Message-----
> From: Claus Ibsen <cl...@gmail.com>
> Sent: Wednesday, January 29, 2025 10:09 AM
> To: users@camel.apache.org
> Subject: Re: ProducerTemplate doesn't work as expected
>
> Hi
>
> Its from the eye of the beholder. Camel produces a message, ie sending a
> message from Camel to X. In this case Camel creates a file.
> If you want to read a file, then let Camel consume from the file.
>
> If you want to learn Camel more then read the Camel in Action book, the
> first chapter is free.
>
>
> On Wed, Jan 29, 2025 at 10:07 AM Jan Bares, WOOD & Co.
> <ja...@wood.cz.invalid> wrote:
>
> > Hi,
> >
> > In my test class, I am trying to send a message to a route under test
> > using the ProducerTemplate sendXXX() method. I assumed this would simulate
> > an incoming message for the endpoint, but it seems that this is not the
> > case. For example, with the File endpoint, the file is physically created
> > on the file system and then read by the endpoint:
> >
> > ProducerTemplate producerTemplate = camelContext.createProducerTemplate();
> > producerTemplate.sendBodyAndHeaders(
> >     "file:testFolder/(?i).*\\.txt",
> >     "Test message content",
> >     Map.of(Exchange.FILE_NAME, "testFile.txt")
> > );
> >
> > This code creates a testFile.txt file in the testFolder.
> >
> > For a spring-rabbitmq endpoint, I cannot use the producer template at all.
> > It appears that the message is sent to the default exchange, and due to our
> > RabbitMQ configuration, the message is not routed to the correct queue.
> >
> > Is this behavior documented somewhere? Additionally, how can I simulate
> > incoming messages without relying on external resources like the file
> > system or RabbitMQ?
> >
> > Thanks,  Jan
> >
> >
> >
> >
> >
> >
> > ________________________________
> > DISCLAIMER
> > WOOD & Company Financial Services, a.s. is authorized and regulated by the
> > Czech National Bank as its Home State Regulator and by relevant local
> > regulatory authorities in the jurisdictions where it operates. For further
> > information about WOOD & Co., its investment services, financial
> > instruments and associated risks, safeguard client assets (incl.
> > compensation schemes) and contractual relationship please see our website
> > at www.wood.com<http://www.wood.com/>. Unless otherwise stated, this
> > transmission is neither an offer nor the solicitation of an offer to sell
> > or purchase any investment. All estimates, opinions and other information
> > contained herein are subject to change without notice and are provided in
> > good faith but without legal responsibility or liability. Opinion may be
> > personal to the author and may not reflect the opinions of WOOD & Co.
> > Communications from sales persons, sales traders or traders should not be
> > regarded as investment research and may contain opinions or trading ideas
> > which are different from WOOD & Co. investment research opinions. This
> > e-mail and any attachments are confidential and may be privileged or
> > otherwise protected from disclosure. If you are not a named addressee you
> > must not use, disclose, distribute, copy, print or rely on this e-mail and
> > any of its attachments. Please notify the sender that you have received
> > this email by mistake by replying to the email, and then delete the email
> > and any copies of it. Although WOOD & Co. routinely screens e-mails for
> > viruses, addressees should scan this e-mail and any attachments for
> > viruses. WOOD & Co. makes no representation or warranty as to the absence
> > of viruses in this e-mail or any attachments. Please note that to ensure
> > regulatory compliance and for the protection of our clients and business,
> > we may monitor and read e-mails sent to and from our server(s).
> >
>
>
> --
> Claus Ibsen
> -----------------
> @davsclaus
> Camel in Action 2: https://www.manning.com/ibsen2





________________________________
DISCLAIMER
WOOD & Company Financial Services, a.s. is authorized and regulated by the Czech National Bank as its Home State Regulator and by relevant local regulatory authorities in the jurisdictions where it operates. For further information about WOOD & Co., its investment services, financial instruments and associated risks, safeguard client assets (incl. compensation schemes) and contractual relationship please see our website at www.wood.com<http://www.wood.com/>. Unless otherwise stated, this transmission is neither an offer nor the solicitation of an offer to sell or purchase any investment. All estimates, opinions and other information contained herein are subject to change without notice and are provided in good faith but without legal responsibility or liability. Opinion may be personal to the author and may not reflect the opinions of WOOD & Co. Communications from sales persons, sales traders or traders should not be regarded as investment research and may contain opinions or trading ideas which are different from WOOD & Co. investment research opinions. This e-mail and any attachments are confidential and may be privileged or otherwise protected from disclosure. If you are not a named addressee you must not use, disclose, distribute, copy, print or rely on this e-mail and any of its attachments. Please notify the sender that you have received this email by mistake by replying to the email, and then delete the email and any copies of it. Although WOOD & Co. routinely screens e-mails for viruses, addressees should scan this e-mail and any attachments for viruses. WOOD & Co. makes no representation or warranty as to the absence of viruses in this e-mail or any attachments. Please note that to ensure regulatory compliance and for the protection of our clients and business, we may monitor and read e-mails sent to and from our server(s).

Re: ProducerTemplate doesn't work as expected

Posted by Claus Ibsen <cl...@gmail.com>.
Hi

Its from the eye of the beholder. Camel produces a message, ie sending a
message from Camel to X. In this case Camel creates a file.
If you want to read a file, then let Camel consume from the file.

If you want to learn Camel more then read the Camel in Action book, the
first chapter is free.


On Wed, Jan 29, 2025 at 10:07 AM Jan Bares, WOOD & Co.
<ja...@wood.cz.invalid> wrote:

> Hi,
>
> In my test class, I am trying to send a message to a route under test
> using the ProducerTemplate sendXXX() method. I assumed this would simulate
> an incoming message for the endpoint, but it seems that this is not the
> case. For example, with the File endpoint, the file is physically created
> on the file system and then read by the endpoint:
>
> ProducerTemplate producerTemplate = camelContext.createProducerTemplate();
> producerTemplate.sendBodyAndHeaders(
>     "file:testFolder/(?i).*\\.txt",
>     "Test message content",
>     Map.of(Exchange.FILE_NAME, "testFile.txt")
> );
>
> This code creates a testFile.txt file in the testFolder.
>
> For a spring-rabbitmq endpoint, I cannot use the producer template at all.
> It appears that the message is sent to the default exchange, and due to our
> RabbitMQ configuration, the message is not routed to the correct queue.
>
> Is this behavior documented somewhere? Additionally, how can I simulate
> incoming messages without relying on external resources like the file
> system or RabbitMQ?
>
> Thanks,  Jan
>
>
>
>
>
>
> ________________________________
> DISCLAIMER
> WOOD & Company Financial Services, a.s. is authorized and regulated by the
> Czech National Bank as its Home State Regulator and by relevant local
> regulatory authorities in the jurisdictions where it operates. For further
> information about WOOD & Co., its investment services, financial
> instruments and associated risks, safeguard client assets (incl.
> compensation schemes) and contractual relationship please see our website
> at www.wood.com<http://www.wood.com/>. Unless otherwise stated, this
> transmission is neither an offer nor the solicitation of an offer to sell
> or purchase any investment. All estimates, opinions and other information
> contained herein are subject to change without notice and are provided in
> good faith but without legal responsibility or liability. Opinion may be
> personal to the author and may not reflect the opinions of WOOD & Co.
> Communications from sales persons, sales traders or traders should not be
> regarded as investment research and may contain opinions or trading ideas
> which are different from WOOD & Co. investment research opinions. This
> e-mail and any attachments are confidential and may be privileged or
> otherwise protected from disclosure. If you are not a named addressee you
> must not use, disclose, distribute, copy, print or rely on this e-mail and
> any of its attachments. Please notify the sender that you have received
> this email by mistake by replying to the email, and then delete the email
> and any copies of it. Although WOOD & Co. routinely screens e-mails for
> viruses, addressees should scan this e-mail and any attachments for
> viruses. WOOD & Co. makes no representation or warranty as to the absence
> of viruses in this e-mail or any attachments. Please note that to ensure
> regulatory compliance and for the protection of our clients and business,
> we may monitor and read e-mails sent to and from our server(s).
>


-- 
Claus Ibsen
-----------------
@davsclaus
Camel in Action 2: https://www.manning.com/ibsen2