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Posted to dev@servicemix.apache.org by "Jeff Puro (JIRA)" <ji...@apache.org> on 2007/04/09 22:34:34 UTC

[jira] Created: (SM-926) Add a standard JBI component for Velocity templates

Add a standard JBI component for Velocity templates
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                 Key: SM-926
                 URL: https://issues.apache.org/activemq/browse/SM-926
             Project: ServiceMix
          Issue Type: New Feature
            Reporter: Jeff Puro
         Assigned To: Jeff Puro
            Priority: Minor
             Fix For: 3.2


I think it would be useful for ServiceMix to provide a velocity template service engine.  This would serve as an alternative to using XSLT to tranform messages and could be particularly useful when creating the content of an email message etc.  The way it would work, in conjunction with JDOM, is that a normalized message would be sent to the component that would inject the properties and the content of the message into the Velocity context.  You can then use Velocity's syntax for generating XML documents or any content that has CDATA tags around it.  The properties of the normalized message would be accessed via the $properties variable, whereas the content of the message would be accessed via either a $content or $root variable using JDOM methods.  Since it is often nice to have Velocity templates pulled from sources other than a .vm file (for example a database), it would be useful for the <velocity:endpoint/> to have a pluggable resource property where the resource could be pulled from either the filesystem, a database, etc...

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[jira] Updated: (SM-926) Add a standard JBI component for Velocity templates

Posted by "Guillaume Nodet (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/activemq/browse/SM-926?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guillaume Nodet updated SM-926:
-------------------------------

    Fix Version/s:     (was: 3.2)

> Add a standard JBI component for Velocity templates
> ---------------------------------------------------
>
>                 Key: SM-926
>                 URL: https://issues.apache.org/activemq/browse/SM-926
>             Project: ServiceMix
>          Issue Type: New Feature
>            Reporter: Jeff Puro
>            Assignee: Jeff Puro
>            Priority: Minor
>   Original Estimate: 2 days
>  Remaining Estimate: 2 days
>
> I think it would be useful for ServiceMix to provide a velocity template service engine.  This would serve as an alternative to using XSLT to tranform messages and could be particularly useful when creating the content of an email message etc.  The way it would work, in conjunction with JDOM, is that a normalized message would be sent to the component that would inject the properties and the content of the message into the Velocity context.  You can then use Velocity's syntax for generating XML documents or any content that has CDATA tags around it.  The properties of the normalized message would be accessed via the $properties variable, whereas the content of the message would be accessed via either a $content or $root variable using JDOM methods.  Since it is often nice to have Velocity templates pulled from sources other than a .vm file (for example a database), it would be useful for the <velocity:endpoint/> to have a pluggable resource property where the resource could be pulled from either the filesystem, a database, etc...

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