Hi LAS developers, I tried to test LAS 7.3 with Ferret 6.72. I found out this ASCAT dataset would not work with LAS 7.3. http://apdrc.soest.hawaii.edu/dods/public_data/satellite_product/ASCAT/daily Time: 00Z03MAR2009 to 00Z28FEB2011 (728 points, avg. res. 1.0 days) It broke on the getOperations.do and getVariables.do with Null Pointer Exception. [16/Sep/2011:10:36:30 -1000] "GET /las/getOperations.do?xpath=/lasdata/datasets/id-e2534a1370/variables/uwnd-id-e2534a1370 {"operations":{"error":"java.lang.NullPointerException","status":"error"}} I tried to debug. I found out this: GET /las/getVariables.do?dsid=id-57db6fb4f1 ***exception javax.servlet.ServletException: java.lang.NullPointerException org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:286) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) javax.servlet.http.HttpServlet.service(HttpServlet.java:617) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) gov.noaa.pmel.tmap.las.filter.RequestInputFilter.doFilter(RequestInputFilter.java:227) ***root cause java.lang.NullPointerException gov.noaa.pmel.tmap.las.jdom.LASConfig.getGrid(LASConfig.java:2068) gov.noaa.pmel.tmap.las.jdom.LASConfig.getGrid(LASConfig.java:2105) gov.noaa.pmel.tmap.las.jdom.LASConfig.getDataset(LASConfig.java:1863) gov.noaa.pmel.tmap.las.jdom.LASConfig.getFullDatasetNoGrids(LASConfig.java:4665) gov.noaa.pmel.tmap.las.ui.GetVariables.execute(GetVariables.java:69) org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58) org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67) org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51) org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190) org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304) org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190) org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) javax.servlet.http.HttpServlet.service(HttpServlet.java:617) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) gov.noaa.pmel.tmap.las.filter.RequestInputFilter.doFilter(RequestInputFilter.java:227) Can you help me to fix this bug? Thanks, Kin |
<datasets>
<id-e2534a1370 name="Daily ASCAT global wind field" url="http://apdrc.soest.hawaii.edu/dods/public_data/satellite_product/ASCAT/daily";>
<composite>
<uwnd-id-e2534a1370_vwnd-id-e2534a1370 name="Vector of eastward wind speed (m/s) and northward wind speed (m/s)" units="no units">
<properties>
<ui>
<default>file:ui.xml#VecVariable</default>
</ui>
</properties>
<link match="../../variables/uwnd-id-e2534a1370" />
<link match="../../variables/vwnd-id-e2534a1370" />
</uwnd-id-e2534a1370_vwnd-id-e2534a1370>
</composite>
<composite>
<uwnd_err-id-e2534a1370_vwnd_err-id-e2534a1370 name="Vector of eastward wind speed root mean square (m/s) and northward wind speed root mean square (m/s)" units="no units">
<properties>
<ui>
<default>file:ui.xml#VecVariable</default>
</ui>
</properties>
<link match="../../variables/uwnd_err-id-e2534a1370" />
<link match="../../variables/vwnd_err-id-e2534a1370" />
</uwnd_err-id-e2534a1370_vwnd_err-id-e2534a1370>
</composite>
<composite>
<uwnd_stress-id-e2534a1370_vwnd_stress-id-e2534a1370 name="Vector of eastward wind stress (pa) and northward wind stress (pa)" units="no units">
<properties>
<ui>
<default>file:ui.xml#VecVariable</default>
</ui>
</properties>
<link match="../../variables/uwnd_stress-id-e2534a1370" />
<link match="../../variables/vwnd_stress-id-e2534a1370" />
</uwnd_stress-id-e2534a1370_vwnd_stress-id-e2534a1370>
</composite>
<variables>
<sampling_length-id-e2534a1370 name="sampling length" units="no units" url="#sampling_length">
<link match="/lasdata/grids/grid-lon-lat-time-id-e2534a1370" />
</sampling_length-id-e2534a1370>
<uwnd-id-e2534a1370 name="eastward wind speed (m/s)" units="no units" url="#uwnd">
<link match="/lasdata/grids/grid-lon-lat-time-id-e2534a1370" />
<properties>
<ferret>
<palette>light_centered</palette>
<fill_levels>c</fill_levels>
</ferret>
</properties>
</uwnd-id-e2534a1370>
<uwnd_err-id-e2534a1370 name="eastward wind speed root mean square (m/s)" units="no units" url="#uwnd_err">
<link match="/lasdata/grids/grid-lon-lat-time-id-e2534a1370" />
<properties>
<ferret>
<palette>light_centered</palette>
<fill_levels>c</fill_levels>
</ferret>
</properties>
</uwnd_err-id-e2534a1370>
<uwnd_stress-id-e2534a1370 name="eastward wind stress (pa)" units="no units" url="#uwnd_stress">
<link match="/lasdata/grids/grid-lon-lat-time-id-e2534a1370" />
<properties>
<ferret>
<palette>light_centered</palette>
<fill_levels>c</fill_levels>
</ferret>
</properties>
</uwnd_stress-id-e2534a1370>
<vwnd-id-e2534a1370 name="northward wind speed (m/s)" units="no units" url="#vwnd">
<link match="/lasdata/grids/grid-lon-lat-time-id-e2534a1370" />
<properties>
<ferret>
<palette>light_centered</palette>
<fill_levels>c</fill_levels>
</ferret>
</properties>
</vwnd-id-e2534a1370>
<vwnd_err-id-e2534a1370 name="northward wind speed root mean square (m/s)" units="no units" url="#vwnd_err">
<link match="/lasdata/grids/grid-lon-lat-time-id-e2534a1370" />
<properties>
<ferret>
<palette>light_centered</palette>
<fill_levels>c</fill_levels>
</ferret>
</properties>
</vwnd_err-id-e2534a1370>
<vwnd_stress-id-e2534a1370 name="northward wind stress (pa)" units="no units" url="#vwnd_stress">
<link match="/lasdata/grids/grid-lon-lat-time-id-e2534a1370" />
<properties>
<ferret>
<palette>light_centered</palette>
<fill_levels>c</fill_levels>
</ferret>
</properties>
</vwnd_stress-id-e2534a1370>
<wind_stress-id-e2534a1370 name="wind stress (pa)" units="no units" url="#wind_stress">
<link match="/lasdata/grids/grid-lon-lat-time-id-e2534a1370" />
</wind_stress-id-e2534a1370>
<wsp-id-e2534a1370 name="wind speed (m/s)" units="no units" url="#wsp">
<link match="/lasdata/grids/grid-lon-lat-time-id-e2534a1370" />
</wsp-id-e2534a1370>
<wsp_err-id-e2534a1370 name="wind speed root mean square (m/s)" units="no units" url="#wsp_err">
<link match="/lasdata/grids/grid-lon-lat-time-id-e2534a1370" />
</wsp_err-id-e2534a1370>
</variables>
</id-e2534a1370>
</datasets>
<grids>
<grid-lon-lat-time-id-e2534a1370>
<link match="/lasdata/axes/lon-x-id-e2534a1370" />
<link match="/lasdata/axes/lat-y-id-e2534a1370" />
<link match="/lasdata/axes/time-t-id-e2534a1370" />
</grid-lon-lat-time-id-e2534a1370>
</grids>
<axes>
<lon-x-id-e2534a1370 type="x" units="degrees_east">
<arange start="-179.875" size="1440" step="0.25" />
</lon-x-id-e2534a1370>
<lat-y-id-e2534a1370 type="y" units="degrees_north">
<arange start="-79.875" size="641" step="0.25" />
</lat-y-id-e2534a1370>
<time-t-id-e2534a1370 type="t" units="day">
<arange start="2009-03-03" size="728" step="1" />
</time-t-id-e2534a1370>
</axes>