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You can append query options to the URI in the following format, ?option=value&option=value&...
Options
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Option | Default | Description |
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contentCache | true | Cache for the resource content when it's loaded.
Note: as of Camel 2.9 cached resource content can be cleared via JMX using the endpoint's clearContentCache operation. | encoding | null | Character encoding of the resource content. | templateUpdateDelay | 5 | Camel 2.9: Number of seconds the loaded template resource will remain in the cache. |
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|| Option || Default || Description ||
| {{contentCache}} | {{true}} | Cache for the resource content when it's loaded. \\ Note: as of *Camel 2.9* cached resource content can be cleared via JMX using the endpoint's {{clearContentCache}} operation. |
| {{encoding}} | {{null}} | Character encoding of the resource content. |
| {{templateUpdateDelay}} | {{5}} | *Camel 2.9:* Number of seconds the loaded template resource will remain in the cache. |
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Headers set during the FreeMarker evaluation are returned to the message and added as headers. This provides a mechanism for the FreeMarker component to return values to the Message.
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Camel will provide exchange information in the FreeMarker context (just a Map). The Exchange is transferred as:
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key | value |
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exchange | The Exchange itself. | exchange.properties | The Exchange properties. | headers | The headers of the In message. | camelContext | The Camel Context. | request | The In message. | body | The In message body. | response | The Out message (only for InOut message exchange pattern). |
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|| key || value ||
| {{exchange}} | The {{Exchange}} itself. |
| {{exchange.properties}} | The {{Exchange}} properties. |
| {{headers}} | The headers of the In message. |
| {{camelContext}} | The Camel Context. |
| {{request}} | The In message. |
| {{body}} | The In message body. |
| {{response}} | The Out message (only for InOut message exchange pattern). |
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From Camel 2.14, you can setup your custom FreeMarker context in the message header with the key "CamelFreemarkerDataModel" just like this
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Camel provides two headers by which you can define a different resource location for a template or the template content itself. If any of these headers is set then Camel uses this over the endpoint configured resource. This allows you to provide a dynamic template at runtime.
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|| Header || Type || Description || Support Version ||
| Header | Type | Description | Support Version |
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FreemarkerConstants.FREEMARKER_RESOURCE |
| org.springframework.core.io.Resource |
| FreemarkerConstants.FREEMARKER_RESOURCE_URI |
| String | A URI for the template resource to use instead of the endpoint configured. | >= 2.1 | FreemarkerConstants.FREEMARKER_TEMPLATE |
| String | The template to use instead of the endpoint configured. | >= 2.1 |
|
Samples
For example you could use something like:
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