Dear LAS developers and all,
I have problem running LAS 7.2 for TDS
using Ferret 6.7.
The plot is working fine in LAS, but it
produces NullPointerException when it reads the dataset from
TDS (THREDDS).
The problem is in
FerretIOServiceProvider.java, Line 481
=====================
/**
* New Ferrets (v6.1.1+) write them like
this:
*
* <var name="SITE_NETCODE">
* <attribute name="long_name"
value="Contributing radar site network affiliation code" />
* <attribute name="_FillValue"
value="-1.000000E+34" />
* <attribute name="missing_value"
value="-1.000000E+34" />
* <attribute name="ferret_datatype"
value="STRING" />
* <attribute name="infile_datatype"
value="CHAR />
*/
Element attribute = (Element) attIt.next();
String value =
attribute.getAttributeValue("value");
String aname =
attribute.getAttributeValue("name");
try {
float fvalue =
Float.valueOf(value).floatValue(); <-- Line 481,
NullPointerException for Ferret (v6.7)
=======================
I think Ferret (v6.5) is still using the
same xml, so it is working fine.
******************
Ferret (v6.5)
<var name="UC">
<attribute name="long_name" value="u
current m/s" />
<attribute name="_FillValue" value="
-9999.000" />
<attribute name="missing_value"
value=" -9999.000" />
<attribute name="ferret_datatype"
value="FLOAT" />
<attribute name="infile_datatype"
value="FLOAT" />
<attribute name="direction" value="IJL"
/>
<attribute name="ferret_datatype"
value="FLOAT" />
<attribute name="infile_datatype"
value="FLOAT" />
<attribute name="dataset"
value="http://apdrc.soest.hawaii.edu/dods/public_data/SCUD/current"
/>
*****************
But when I use Ferret (v6.7), the xml file
is completely different.
*****************
Ferret (v6.7)
<datasets>
<dataset
name="http://apdrc1.soest.hawaii.edu:9090/dods/public_data/SCUD/current"
default="true">
<title>currents</title>
<var name="uc">
<attribute name="long_name"
type="char">
<value><![CDATA[u current
m/s]]></value>
</attribute>
<attribute name="_FillValue"
type="float">
<value>-9999</value>
</attribute>
<attribute name="missing_value"
type="float">
<value>-9999</value>
</attribute>
<attribute name="ferret_datatype"
type="char">
<value><![CDATA[FLOAT]]></value>
</attribute>
<attribute name="infile_datatype"
type="char">
<value><![CDATA[FLOAT]]></value>
</attribute>
******************
The parser in FerretIOServiceProvider.java
cannot parse the xml file in the correct way.
Does the later version of LAS have this bug
fix?
Thanks,
Kin