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A "Smooks Resource" is anything that can be used by Smooks in the process of analyzing or transforming a data stream. They could be pieces of Java logic (DOMElementVisitor), some text or script resource, or perhaps simply a configuration parameter.

Resource Configuration Properties

  • selector: Selector string. Used by Smooks to "lookup" a resource configuration. This is typically the message fragment name, but as mentioned above, not all resources are transformation/analysis resources targeted at a message fragment - this is why we didn't call this attribute "target-fragment".
  • selector-namespace: The XML namespace of the selector target for this resource. This is used to target ContentDeliveryUnits at XML elements from a specific XML namespace e.g. "http://www.w3.org/2002/xforms". If not defined, the resource is targeted at all namespces.
  • target-profile: A list of 1 or more profile targeting expressions. (supports wildcards "*").


Example selectors:

  1. The target fragment name (e.g. for HTML - table, tr, pre etc). This type of selector can be contextual in a similar way to contextual selectors in CSS e.g. "td ol li" will target the resource at all "li" elements nested inside an "ol" element, which is in turn nested inside a "td" element. See sample configurations above. Also supports wildcard based fragment selection ("*").
  2. "$document" is a special selector that targets a resource at the "document" fragment i.e. the whole document, or document root node fragment.
  3. Targeting a specific SmooksXMLReader at a specific profile. See the csv-to-xml and edi-to-xml tutorials.

XML Based Configuration

Smooks can be manually configured (through code), but the easiest way of working is through XML.

Basic Sample:
Note that it is not using any profiling. The resource-config element maps directly to an instance of this class.

 <?xml version='1.0'?>
 <smooks-resource-list xmlns="http://www.milyn.org/xsd/smooks-1.0.xsd">
      <resource-config selector="order order-header">
          <resource type="xsl">/com/acme/transform/OrderHeaderTransformer.xsl</resource>
      </resource-config>
      <resource-config selector="order-items order-item">
          <resource>com.acme.transform.MyJavaOrderItemTransformer</resource>
      </resource-config>
 </smooks-resource-list>

More Complex Sample:
This sample uses profiling. So resource 1 is targeted at both "message-exchange-1" and "message-exchange-2", whereas resource 2 is only targeted at "message-exchange-1" and resource 3 at "message-exchange-2" (see Smooks.createExecutionContext(String)).

 <?xml version='1.0'?>
 <smooks-resource-list xmlns="http://www.milyn.org/xsd/smooks-1.0.xsd">
      <profiles>
          <profile base-profile="message-exchange-1" sub-profiles="message-producer-A, message-consumer-B" />
          <profile base-profile="message-exchange-2" sub-profiles="message-producer-A, message-consumer-C" />
      </profiles>
 (1)  <resource-config selector="order order-header" target-profile="message-producer-A">
          <resource>com.acme.transform.AddIdentityInfo</resource>
      </resource-config>
 (2)  <resource-config selector="order-items order-item" target-profile="message-consumer-B">
          <resource>com.acme.transform.MyJavaOrderItemTransformer</resource>
          <param name="execution-param-X">param-value-forB</param>
      </resource-config>
 (3)  <resource-config selector="order-items order-item" target-profile="message-consumer-C">
          <resource>com.acme.transform.MyJavaOrderItemTransformer</resource>
          <param name="execution-param-X">param-value-forC</param>
      </resource-config>
 </smooks-resource-list>

For more examples, check out the tutorials.

Java Based Configuration

TODO!!

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