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Name | Default Value | Description |
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| Delimiter used if the Expression returned multiple endpoints. |
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| If an endpoint |
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URI could not be resolved, should it be ignored. Otherwise, Camel will throw an exception stating the endpoint |
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URI is not valid. | ||
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| Camel 2.13.1/2.12.4: Allows to configure the cache size for the |
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The default cache size |
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is |
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A value |
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of |
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disables the use of the cache |
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. |
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The following route will take any messages sent to the Apache ActiveMQ queue SomeQueue and pass them into the Routing Slip pattern.
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Messages will be checked for the existance existence of the "the aRoutingSlipHeader" header. The value of this header should be a comma-delimited list of endpoint URIs you wish the message to be routed to. The Message will be routed in a pipeline fashion (, i.e., one after the other). From Camel 2.5 the Routing Slip will set a property (, Exchange.SLIP_ENDPOINT) , on the Exchange which contains the current endpoint as it advanced though the slip. This allows you to know how far we have processed in the slip.
The Routing Slip will compute the slip beforehand which means, the slip is only computed once. If you need to compute the slip on-the-fly then use the Dynamic Router pattern instead.
Configuration
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Options
Here we set the header name and the URI delimiter to something different.
Using the Fluent Builders
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Using the Spring XML Extensions
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Ignore
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Invalid Endpoints
Available as of Camel 2.3
The Routing Slip now supports ignoreInvalidEndpoints which the Recipient List also supports. You can use it to skip endpoints which are invalid.
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And in Spring XML its an attribute on the recipient list tag.
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:
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Then lets let's say the myHeader contains the following two endpoints direct:foo,xxx:bar. The first endpoint is valid and works. However the 2nd second endpoint is invalid and will just be ignored. Camel logs at at INFO level, so you can see why the endpoint was invalid.
Expression
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Support
Available as of Camel 2.4
The Routing Slip now supports to take the expression parameter as the Recipient List does. You can tell Camel the expression that you want to use to get the routing slip.
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And in Spring XML its an attribute on the recipient list tag.
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Further Examples
For further examples of this pattern in use you could look at the routing slip test cases.Include Page