Re: Configuring my Velocity Tool: where are the properties to be found?

[Nathan Bubna <nb...@gmail.com>]

Hi Travis,

There's some terminology confusion.  Data are values meant to be
directly put into the context, they are not tool properties.   Tool
properties are configured like this:

<tools>
<toolbox scope="request" thisIsAPropertyForAllToolsInThisToolbox="hello">
        <property name="aTypedPropertyForAllToolsInThisToolbox"
value="true" type="boolean"/>
        <tool key="my" class="org.mine.MyTool"
thisIsAPropertyForThisToolOnly="world"/>
</toolbox>
<property name="aPropertyForAllToolsInAnyToolbox" value="10" type="number"/>
</tools>

See:   http://velocity.apache.org/tools/devel/config.xml.html

On Thu, Mar 18, 2010 at 10:56 AM, Travis P <al...@gmail.com> wrote:
> I'm using VelocityTool 2.0-beta4 with Velocity 1.6.3 under Tomcat 6.0.24.
>
> I'm trying to figure out how I can pass some configuration info into my
> velocity tool.
>
> I expected the data to be passed to the configure routine, but I don't see
> it in the property map that is passed, or any other map that I could find to
> look at.
>
> Below is simple tools.xml and MyTool.java that pretty much show what I've
> tried.   I do get output showing that MyTool's constructor and configure()
> method are called.  I just get null from all property lookups.  I also see
> Velocity printing this in the log output:
>  Data 'GENERIC_TOOLS_AVAILABLE' -boolean-> true
>  Data 'TOOLS_VERSION' -number-> 2.0
>  Data 'VIEW_TOOLS_AVAILABLE' -boolean-> true
>  Data 'my_data' -auto-> data 1
>
> That looks promising.  But where can I query the value of "my_data"?
>
> -Travis
>
>
> I've got a configuration like this:
> =================
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <tools>
>
>  <toolbox scope="application">
>   <tool key="my" class="MyTool" />
>   <data key="my_data" value="data 2" />
>  </toolbox>
>
>  <data key="my_data" value="data 1" />
> </tools>
> =================
>
>
> =================
> @DefaultKey("my")
> public class MyTool
> {
>  public MyTool()
>  {
>    System.err.println("MyTool init");
>  }
>
>  public void configure(Map props)
>  {
>    System.err.println("[my-conf] configure");
>    for (Object meo : props.entrySet()) {
>      Map.Entry me = (Map.Entry)meo;
>      System.err.println("[my-conf] "+me.getKey()+" : " + me.getValue());
>    }
>
>    VelocityEngine ve = (VelocityEngine)props.get("velocityEngine");
>
>    System.err.println("[my-conf] PG my_data=>'"+
>                       ve.getProperty("my_data")+"'");
>
>    System.err.println("[my-conf] RS my_data=>'"+
>
> org.apache.velocity.runtime.RuntimeSingleton.getProperty("my_data")+"'");
>
>    System.err.println("[my-conf] SY my_data=>'"+
>                       System.getProperty("my_data")+"'");
>
>  }
> }
> ================
>

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