[kepler-dev] Make element karEntryXML optional

[Jing Tao]

Hi, devs:

Under current kar xml schema, both karEntryAttributes and karEntryXML is 
requried:
<xs:complexType name="karEntryType">
     <xs:sequence>
        <xs:element name="karEntryAttributes" type="xs:anyType"/>
        <xs:element name="karEntryXML" type="xs:anyType" />
      </xs:sequence>
</xs:complexType>

When i tried to upload a workflow run from tpc09-plant-dynamics-woody.kar 
to a remote server, I got an invalid kar xml exception. Derik helped me to 
identify that one of karEntry elements doesn't have a child named 
karEntryXML. This kar entry is a pdf file. So there is no xml assoicated with it.

Since kar entry is not necessary in xml format, I think karEntryXML 
elment should be optional. If there is no objection, i will change the 
schema.

Thanks,

Jing


Jing Tao
National Center for Ecological
Analysis and Synthesis (NCEAS)
735 State St. Suite 204
Santa Barbara, CA 93101