SOLR XML Import combining multiple children -

i'm attempting load xml solr using dataimporthandler, , have no problems getting data in, need transforming format. have tried can think of , googled possible solutions, , stuck. source xml looks this:

<authorlist completeyn="y">   <author validyn="y">     <lastname>mohammed</lastname>     <forename>arshed abdulhamed</forename>     <initials>aa</initials>   </author>   <author validyn="y">     <lastname>haris</lastname>     <forename>sallehuddin mohamed</forename>     <initials>sm</initials>   </author>   <author validyn="y">     <lastname>nuawi</lastname>     <forename>mohd zaki</forename>     <initials>mz</initials>   </author> </authorlist> 

and end this:

<str name="author_1">arshed mohammed</str> <str name="author_2">sallehuddin mohamed harris</str> <str name="author_3">mohd zaki nuawi</str> 

i'm thinking combination of dih's scripttransformer , templatetransformer, , schema.xml's "dynamicfield" trick, i'm hitting wall. has else run problem this?

thank in advance.