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Posted to users@camel.apache.org by mgiammarco <mg...@gmail.com> on 2012/01/08 13:44:26 UTC
Xstream marshals to byte array and not String
Hello,
I am using a stomp client (that usese only Strings) to send a bean to Camel
using ActiveMQ. It marshal the message to a String using xstream.
Camel receives it as String, it unmarshals (using xstream) it as the correct
Java Bean. Camel process (it is a request-reply queue) and at the end I
marshal it again.
Unfortunately stomp client cannot process the message because xstream in
Camel produce a byte[] array and not a String as output.
Why? how can I force it to use a String?
Thanks,
Mario
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Re: Xstream marshals to byte array and not String
Posted by Willem Jiang <wi...@gmail.com>.
How did you send the message to the ActiveMQ?
Please make sure the MEP is InOut.
On Wed Jan 11 02:11:03 2012, mgiammarco wrote:
> Ok I have tried but unfortunately reply is missing. Conversion to String
> works:
>
> [ #1 - JmsConsumer[queryServer]] pratobackend INFO
> Exchange[ExchangePattern:InOut, Headers:{JMSCorrelationID=null,
> breadcrumbId=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
> JMSPriority=4,
> JMSMessageID=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
> JMSDeliveryMode=1, JMSReplyTo=queue:///queue/test, JMSRedelivered=false,
> JMSTimestamp=1326218785346, JMSXGroupID=null,
> JMSDestination=queue://queryServer, JMSType=null, JMSExpiration=0},
> BodyType:String, Body:<?xml version="1.0"
> ?><it.giammar.pratomodel.QueryRequest><automatic>false</automatic><query>stomp
> stomp</query></it.giammar.pratomodel.QueryRequest>]
> [ #1 - JmsConsumer[queryServer]] pratobackend INFO
> Exchange[ExchangePattern:InOut, Headers:{JMSDestination=queue://queryServer,
> JMSXGroupID=null, JMSExpiration=0, JMSPriority=4, JMSCorrelationID=null,
> JMSDeliveryMode=1, JMSType=null,
> breadcrumbId=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
> JMSReplyTo=queue:///queue/test,
> JMSMessageID=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
> JMSRedelivered=false, JMSTimestamp=1326218785346},
> BodyType:it.giammar.pratomodel.QueryRequest, Body:QueryRequest
> [automatic=false, query=stomp stomp]]
> [ #1 - JmsConsumer[queryServer]] Saluta INFO sono
> in sayhello
> [ #1 - JmsConsumer[queryServer]] pratobackend INFO
> Exchange[ExchangePattern:InOut, Headers:{JMSXGroupID=null,
> JMSTimestamp=1326218785346,
> breadcrumbId=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
> JMSPriority=4,
> JMSMessageID=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
> JMSExpiration=0, JMSReplyTo=queue:///queue/test,
> JMSDestination=queue://queryServer, JMSType=null, JMSCorrelationID=null,
> JMSDeliveryMode=1, JMSRedelivered=false},
> BodyType:it.giammar.pratomodel.QueryRequest, Body:QueryRequest
> [automatic=true, query=stomp stomp]]
> [ #1 - JmsConsumer[queryServer]] pratobackend INFO
> Exchange[ExchangePattern:InOut, Headers:{JMSDeliveryMode=1,
> JMSReplyTo=queue:///queue/test,
> JMSMessageID=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
> breadcrumbId=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
> JMSDestination=queue://queryServer, JMSTimestamp=1326218785346,
> JMSPriority=4, JMSCorrelationID=null, JMSExpiration=0, JMSRedelivered=false,
> JMSType=null, JMSXGroupID=null}, BodyType:byte[], Body:<?xml version='1.0'
> encoding='UTF-8'?><it.giammar.pratomodel.QueryRequest><automatic>true</automatic><query>stomp
> stomp</query></it.giammar.pratomodel.QueryRequest>]
> [ #1 - JmsConsumer[queryServer]] pratobackend INFO
> Exchange[ExchangePattern:InOut,
> Headers:{JMSMessageID=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
> JMSCorrelationID=null, JMSType=null, JMSDestination=queue://queryServer,
> breadcrumbId=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
> JMSExpiration=0, JMSPriority=4, JMSTimestamp=1326218785346,
> JMSReplyTo=queue:///queue/test, JMSXGroupID=null, JMSRedelivered=false,
> JMSDeliveryMode=1}, BodyType:String, Body:<?xml version='1.0'
> encoding='UTF-8'?><it.giammar.pratomodel.QueryRequest><automatic>true</automatic><query>stomp
> stomp</query></it.giammar.pratomodel.QueryRequest>]
>
>
> --
> View this message in context: http://camel.465427.n5.nabble.com/Xstream-marshals-to-byte-array-and-not-String-tp5129211p5134795.html
> Sent from the Camel - Users mailing list archive at Nabble.com.
>
--
Willem
----------------------------------
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Re: Xstream marshals to byte array and not String
Posted by mgiammarco <mg...@gmail.com>.
Ok I have tried but unfortunately reply is missing. Conversion to String
works:
[ #1 - JmsConsumer[queryServer]] pratobackend INFO
Exchange[ExchangePattern:InOut, Headers:{JMSCorrelationID=null,
breadcrumbId=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
JMSPriority=4,
JMSMessageID=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
JMSDeliveryMode=1, JMSReplyTo=queue:///queue/test, JMSRedelivered=false,
JMSTimestamp=1326218785346, JMSXGroupID=null,
JMSDestination=queue://queryServer, JMSType=null, JMSExpiration=0},
BodyType:String, Body:<?xml version="1.0"
?><it.giammar.pratomodel.QueryRequest><automatic>false</automatic><query>stomp
stomp</query></it.giammar.pratomodel.QueryRequest>]
[ #1 - JmsConsumer[queryServer]] pratobackend INFO
Exchange[ExchangePattern:InOut, Headers:{JMSDestination=queue://queryServer,
JMSXGroupID=null, JMSExpiration=0, JMSPriority=4, JMSCorrelationID=null,
JMSDeliveryMode=1, JMSType=null,
breadcrumbId=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
JMSReplyTo=queue:///queue/test,
JMSMessageID=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
JMSRedelivered=false, JMSTimestamp=1326218785346},
BodyType:it.giammar.pratomodel.QueryRequest, Body:QueryRequest
[automatic=false, query=stomp stomp]]
[ #1 - JmsConsumer[queryServer]] Saluta INFO sono
in sayhello
[ #1 - JmsConsumer[queryServer]] pratobackend INFO
Exchange[ExchangePattern:InOut, Headers:{JMSXGroupID=null,
JMSTimestamp=1326218785346,
breadcrumbId=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
JMSPriority=4,
JMSMessageID=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
JMSExpiration=0, JMSReplyTo=queue:///queue/test,
JMSDestination=queue://queryServer, JMSType=null, JMSCorrelationID=null,
JMSDeliveryMode=1, JMSRedelivered=false},
BodyType:it.giammar.pratomodel.QueryRequest, Body:QueryRequest
[automatic=true, query=stomp stomp]]
[ #1 - JmsConsumer[queryServer]] pratobackend INFO
Exchange[ExchangePattern:InOut, Headers:{JMSDeliveryMode=1,
JMSReplyTo=queue:///queue/test,
JMSMessageID=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
breadcrumbId=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
JMSDestination=queue://queryServer, JMSTimestamp=1326218785346,
JMSPriority=4, JMSCorrelationID=null, JMSExpiration=0, JMSRedelivered=false,
JMSType=null, JMSXGroupID=null}, BodyType:byte[], Body:<?xml version='1.0'
encoding='UTF-8'?><it.giammar.pratomodel.QueryRequest><automatic>true</automatic><query>stomp
stomp</query></it.giammar.pratomodel.QueryRequest>]
[ #1 - JmsConsumer[queryServer]] pratobackend INFO
Exchange[ExchangePattern:InOut,
Headers:{JMSMessageID=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
JMSCorrelationID=null, JMSType=null, JMSDestination=queue://queryServer,
breadcrumbId=ID:virtual1.mariosoft.mio-54532-1326218763414-4:1:-1:1:1,
JMSExpiration=0, JMSPriority=4, JMSTimestamp=1326218785346,
JMSReplyTo=queue:///queue/test, JMSXGroupID=null, JMSRedelivered=false,
JMSDeliveryMode=1}, BodyType:String, Body:<?xml version='1.0'
encoding='UTF-8'?><it.giammar.pratomodel.QueryRequest><automatic>true</automatic><query>stomp
stomp</query></it.giammar.pratomodel.QueryRequest>]
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Re: Xstream marshals to byte array and not String
Posted by Willem Jiang <wi...@gmail.com>.
Can you try this ?
from("activemq:queryServer?exchangePattern=InOut")
.setExchangePattern(ExchangePattern.InOut)
.to("log:it.giammar.pratobackend?showHeaders=true").unmarshal()
.xstream().to("log:it.giammar.pratobackend?showHeaders=true")
.to("bean:saluta")
.to("log:it.giammar.pratobackend?showHeaders=true").marshal()
.xstream("UTF-8").convertTo(String.class).to("log:it.giammar.pratobackend?showHeaders=true");
On 1/9/12 4:33 AM, mgiammarco wrote:
> Ok I have tried again and I failed again.
>
> This is my route:
>
> from("activemq:queryServer?exchangePattern=InOut")
> .setExchangePattern(ExchangePattern.InOut)
> .to("log:it.giammar.pratobackend?showHeaders=true").unmarshal()
> .xstream().to("log:it.giammar.pratobackend?showHeaders=true")
> .to("bean:saluta")
> .to("log:it.giammar.pratobackend?showHeaders=true").marshal()
> .xstream("UTF-8").to("log:it.giammar.pratobackend?showHeaders=true");
>
>
> And this is the log:
> [ #1 - JmsConsumer[queryServer]] pratobackend INFO
> Exchange[ExchangePattern:InOut, Headers:{JMSDeliveryMode=1,
> JMSDestination=queue://queryServer, JMSType=null, JMSXGroupID=null,
> JMSExpiration=0, JMSTimestamp=1326054690900, JMSPriority=4,
> JMSRedelivered=false,
> JMSMessageID=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
> JMSReplyTo=queue:///queue/mia,
> breadcrumbId=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
> JMSCorrelationID=null}, BodyType:String, Body:<?xml version="1.0"
> ?><it.giammar.pratomodel.QueryRequest><automatic>false</automatic><query>stomp
> stomp</query></it.giammar.pratomodel.QueryRequest>]
> [ #1 - JmsConsumer[queryServer]] pratobackend INFO
> Exchange[ExchangePattern:InOut, Headers:{JMSReplyTo=queue:///queue/mia,
> JMSXGroupID=null, JMSExpiration=0, JMSDestination=queue://queryServer,
> JMSCorrelationID=null, JMSType=null, JMSPriority=4, JMSRedelivered=false,
> JMSTimestamp=1326054690900,
> JMSMessageID=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
> breadcrumbId=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
> JMSDeliveryMode=1}, BodyType:it.giammar.pratomodel.QueryRequest,
> Body:QueryRequest [automatic=false, query=stomp stomp]]
> [ #1 - JmsConsumer[queryServer]] Saluta INFO sono
> in sayhello
> [ #1 - JmsConsumer[queryServer]] pratobackend INFO
> Exchange[ExchangePattern:InOut, Headers:{JMSXGroupID=null,
> JMSDestination=queue://queryServer, JMSType=null, JMSCorrelationID=null,
> JMSReplyTo=queue:///queue/mia, JMSRedelivered=false,
> breadcrumbId=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
> JMSDeliveryMode=1, JMSPriority=4,
> JMSMessageID=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
> JMSExpiration=0, JMSTimestamp=1326054690900},
> BodyType:it.giammar.pratomodel.QueryRequest, Body:QueryRequest
> [automatic=true, query=stomp stomp]]
> [ #1 - JmsConsumer[queryServer]] pratobackend INFO
> Exchange[ExchangePattern:InOut, Headers:{JMSReplyTo=queue:///queue/mia,
> JMSTimestamp=1326054690900, JMSRedelivered=false, JMSDeliveryMode=1,
> JMSDestination=queue://queryServer, JMSCorrelationID=null, JMSType=null,
> JMSExpiration=0,
> breadcrumbId=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
> JMSPriority=4,
> JMSMessageID=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
> JMSXGroupID=null}, BodyType:byte[], Body:<?xml version='1.0'
> encoding='UTF-8'?><it.giammar.pratomodel.QueryRequest><automatic>true</automatic><query>stomp
> stomp</query></it.giammar.pratomodel.QueryRequest>]
>
>
>
> --
> View this message in context: http://camel.465427.n5.nabble.com/Xstream-marshals-to-byte-array-and-not-String-tp5129211p5129934.html
> Sent from the Camel - Users mailing list archive at Nabble.com.
>
--
Willem
----------------------------------
FuseSource
Web: http://www.fusesource.com
Blog: http://willemjiang.blogspot.com (English)
http://jnn.javaeye.com (Chinese)
Twitter: willemjiang
Weibo: willemjiang
Re: Xstream marshals to byte array and not String
Posted by mgiammarco <mg...@gmail.com>.
Ok I have tried again and I failed again.
This is my route:
from("activemq:queryServer?exchangePattern=InOut")
.setExchangePattern(ExchangePattern.InOut)
.to("log:it.giammar.pratobackend?showHeaders=true").unmarshal()
.xstream().to("log:it.giammar.pratobackend?showHeaders=true")
.to("bean:saluta")
.to("log:it.giammar.pratobackend?showHeaders=true").marshal()
.xstream("UTF-8").to("log:it.giammar.pratobackend?showHeaders=true");
And this is the log:
[ #1 - JmsConsumer[queryServer]] pratobackend INFO
Exchange[ExchangePattern:InOut, Headers:{JMSDeliveryMode=1,
JMSDestination=queue://queryServer, JMSType=null, JMSXGroupID=null,
JMSExpiration=0, JMSTimestamp=1326054690900, JMSPriority=4,
JMSRedelivered=false,
JMSMessageID=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
JMSReplyTo=queue:///queue/mia,
breadcrumbId=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
JMSCorrelationID=null}, BodyType:String, Body:<?xml version="1.0"
?><it.giammar.pratomodel.QueryRequest><automatic>false</automatic><query>stomp
stomp</query></it.giammar.pratomodel.QueryRequest>]
[ #1 - JmsConsumer[queryServer]] pratobackend INFO
Exchange[ExchangePattern:InOut, Headers:{JMSReplyTo=queue:///queue/mia,
JMSXGroupID=null, JMSExpiration=0, JMSDestination=queue://queryServer,
JMSCorrelationID=null, JMSType=null, JMSPriority=4, JMSRedelivered=false,
JMSTimestamp=1326054690900,
JMSMessageID=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
breadcrumbId=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
JMSDeliveryMode=1}, BodyType:it.giammar.pratomodel.QueryRequest,
Body:QueryRequest [automatic=false, query=stomp stomp]]
[ #1 - JmsConsumer[queryServer]] Saluta INFO sono
in sayhello
[ #1 - JmsConsumer[queryServer]] pratobackend INFO
Exchange[ExchangePattern:InOut, Headers:{JMSXGroupID=null,
JMSDestination=queue://queryServer, JMSType=null, JMSCorrelationID=null,
JMSReplyTo=queue:///queue/mia, JMSRedelivered=false,
breadcrumbId=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
JMSDeliveryMode=1, JMSPriority=4,
JMSMessageID=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
JMSExpiration=0, JMSTimestamp=1326054690900},
BodyType:it.giammar.pratomodel.QueryRequest, Body:QueryRequest
[automatic=true, query=stomp stomp]]
[ #1 - JmsConsumer[queryServer]] pratobackend INFO
Exchange[ExchangePattern:InOut, Headers:{JMSReplyTo=queue:///queue/mia,
JMSTimestamp=1326054690900, JMSRedelivered=false, JMSDeliveryMode=1,
JMSDestination=queue://queryServer, JMSCorrelationID=null, JMSType=null,
JMSExpiration=0,
breadcrumbId=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
JMSPriority=4,
JMSMessageID=ID:virtual1.mariosoft.mio-58130-1326054679482-4:1:-1:1:1,
JMSXGroupID=null}, BodyType:byte[], Body:<?xml version='1.0'
encoding='UTF-8'?><it.giammar.pratomodel.QueryRequest><automatic>true</automatic><query>stomp
stomp</query></it.giammar.pratomodel.QueryRequest>]
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Re: Xstream marshals to byte array and not String
Posted by Willem Jiang <wi...@gmail.com>.
Hi,
I just checked the code of camel-xstream in the trunk, it is converting
the Java object into String.
Can you show me the route that you have ? Which version of Camel are
you using ?
BTW, you need to set the encoding on the camel-xstream data format like
this
from("direct:marshal").marshal().xstream("UTF-8");
from("direct:reverse").unmarshal().xstream("UTF-8").to("mock:reverse");
On Sun Jan 8 20:44:26 2012, mgiammarco wrote:
> Hello,
> I am using a stomp client (that usese only Strings) to send a bean to Camel
> using ActiveMQ. It marshal the message to a String using xstream.
>
> Camel receives it as String, it unmarshals (using xstream) it as the correct
> Java Bean. Camel process (it is a request-reply queue) and at the end I
> marshal it again.
>
> Unfortunately stomp client cannot process the message because xstream in
> Camel produce a byte[] array and not a String as output.
>
> Why? how can I force it to use a String?
>
> Thanks,
> Mario
>
> --
> View this message in context: http://camel.465427.n5.nabble.com/Xstream-marshals-to-byte-array-and-not-String-tp5129211p5129211.html
> Sent from the Camel - Users mailing list archive at Nabble.com.
>
--
Willem
----------------------------------
FuseSource
Web: http://www.fusesource.com
Blog: http://willemjiang.blogspot.com (English)
http://jnn.javaeye.com (Chinese)
Twitter: willemjiang
Weibo: willemjiang
Re: Xstream marshals to byte array and not String
Posted by mgiammarco <mg...@gmail.com>.
Nobody can help me? Why after I put xstream marshal/unmarshal request-reply
has stopped working?
2012/1/9 mgiammarco [via Camel] <ml...@n5.nabble.com>
> I mean does the request reply continue to work if the last step of the
> route is not a .to() but a .xstream() ? It seems not for me
>
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Re: Xstream marshals to byte array and not String
Posted by mgiammarco <mg...@gmail.com>.
I mean does the request reply continue to work if the last step of the route
is not a .to() but a .xstream() ? It seems not for me
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Re: Xstream marshals to byte array and not String
Posted by mgiammarco <mg...@gmail.com>.
Thanks I have tried your workaround and it does the conversion.
Unfortunately something worse is happening:
with this route and a String input my stomp client receives a reply:
from("activemq:queryServer?exchangePattern=InOut")
.setExchangePattern(ExchangePattern.InOut)
.to("log:it.giammar.pratobackend?showHeaders=true").unmarshal()
.to("bean:saluta")
.to("log:it.giammar.pratobackend?showHeaders=true");
With the route that I have posted in other reply (I do not repeat here) and
your conversion in String the stomp client does not receive anything.
Unfortunately I am not able to launch a web console to debug camel queues so
I do not understand what is happening.
The stomp protocol trace shows nothing.
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Re: Xstream marshals to byte array and not String
Posted by Claus Ibsen <cl...@gmail.com>.
On Sun, Jan 8, 2012 at 1:44 PM, mgiammarco <mg...@gmail.com> wrote:
> Hello,
> I am using a stomp client (that usese only Strings) to send a bean to Camel
> using ActiveMQ. It marshal the message to a String using xstream.
>
> Camel receives it as String, it unmarshals (using xstream) it as the correct
> Java Bean. Camel process (it is a request-reply queue) and at the end I
> marshal it again.
>
> Unfortunately stomp client cannot process the message because xstream in
> Camel produce a byte[] array and not a String as output.
>
> Why? how can I force it to use a String?
>
You can always use the .convertBodyTo(String.class) to force a type conversion.
> Thanks,
> Mario
>
> --
> View this message in context: http://camel.465427.n5.nabble.com/Xstream-marshals-to-byte-array-and-not-String-tp5129211p5129211.html
> Sent from the Camel - Users mailing list archive at Nabble.com.
--
Claus Ibsen
-----------------
FuseSource
Email: cibsen@fusesource.com
Web: http://fusesource.com
Twitter: davsclaus, fusenews
Blog: http://davsclaus.blogspot.com/
Author of Camel in Action: http://www.manning.com/ibsen/