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How to use a dynamic URI in to()A dynamic URI is an endpoint URI that varies depending on inflight routing information, such as Exchange properties, message headers, the body, the Camel Context, etc. Dynamic To - out of the box From Camel 2.16 onwards there is a new <toD> which is a dynamic to. See more details at Message Endpoint.
For example, if you're using a Freemarker producer and the template location is provided inside the current message, you might expect the following code to work, but it will not. This is not valid code This snippet is not valid code. Read on. .to("freemarker://templateHome/${body.templateName}.ftl") In this case, you must use an EIP (Enterprise Integration Pattern) that is capable of computing a dynamic URI using an Expression, such as the Recipient List EIP pattern. For example, rewriting the snippet above to use the Simple expression language: This is valid code This snippet is valid code. .recipientList(simple("freemarker://templateHome/${body.templateName}.ftl")) Or you could use any other of Camel Languages. Notice that the Recipient List can send to multiple Endpoints if the expression returns either a For example, to turn it, when using Camel 2.13 onwards: .recipientList(simple("sql:select firstName, lastName from myTable where user = ${header.user}"), "false") And for users of Camel 2.12.x or older, we use a non existing delimiter char: .recipientList(simple("sql:select firstName, lastName from myTable where user = ${header.user}"), "@") |