Hi
I am adding a function to simple language so this can be done via simple in
the future
https://issues.apache.org/jira/browse/CAMEL-20127
At first its a bit long in the tooth
${messageAs(org.apache.camel.language.simple.MyAttachmentMessage).hasAttachments}
On Sun, Nov 19, 2023 at 12:55 PM Claus Ibsen <claus.ib...@gmail.com> wrote:
> Hi
>
> You can look in the source of camel-attachments and see how they are
> stored and then do it by checking for exchange property
> key CamelAttachmentObjects exists and is not empty
>
> On Tue, Nov 14, 2023 at 9:21 PM ski n <raymondmees...@gmail.com> wrote:
>
>> As a workaround, I implemented it as follows:
>>
>> public class MyBean {
>>
>> public boolean hasAttachements(Exchange exchange) {
>> return
>> exchange.getIn(AttachmentMessage.class).hasAttachments();
>> }
>>
>> }
>>
>> And then call it from the Java DSL as:
>>
>> <method beanType="org.assimbly.attachement.MyBean"
>> method="hasAttachements"/>
>>
>> If there are better solution, I like to hear it.
>>
>> Raymond
>>
>>
>> On Tue, Nov 14, 2023 at 8:12 PM ski n <raymondmees...@gmail.com> wrote:
>>
>> >
>> > I need to check if a message has an attachment.
>> >
>> > In Camel2 I used the following expression:
>> >
>> > <simple>${exchange.getIn().hasAttachments}</simple>
>> >
>> > As attachment was modularized in Camel 3, the hasAttachments method
>> isn't
>> > directly available on the exchange anymore (it now extends Message).
>> >
>> > Based on the documentation:
>> >
>> > https://camel.apache.org/components/3.20.x/others/attachments.html
>> >
>> > I tried:
>> >
>> >
>> <simple>${exchange.getIn(AttachmentMessage.class).hasAttachments}</simple>
>> >
>> > Using Java code directly this works, but from the XML DSL this gives:
>> >
>> > org.apache.camel.component.bean.ParameterBindingException: Error during
>> > parameter binding on method: public abstract java.lang.Object
>> > org.apache.camel.Exchange.getIn(java.lang.Class) at parameter #0 with
>> type:
>> > class java.lang.Class with value type: class java.lang.String and value:
>> > AttachmentMessage.class
>> >
>> > The parameter is seen as a String object, instead of AttachmentMessage
>> > object. How to properly pass the type parameter in the XML DSL with a
>> > simple expression? If there is an alternative way to check attachments
>> this
>> > also fine, but I'm trying to avoid using processors or bean invocation
>> > though.
>> >
>> > Raymond
>> >
>> >
>>
>
>
> --
> Claus Ibsen
> -----------------
> @davsclaus
> Camel in Action 2: https://www.manning.com/ibsen2
>
--
Claus Ibsen
-----------------
@davsclaus
Camel in Action 2: https://www.manning.com/ibsen2
