[IDV #RMR-226806]: ncml on TDS server

> 
> 
> Hey IDV folks
> 
> 
> 
> 
> 
> I am having trouble opening a NCML file on a thredds server.
> 
> http://staging.asascience.com:8989/thredds/test.xml
> 
> 
> 
> There are two data sets:
> 
> CTD_NC
> 
> CTD_ncml
> 
> 
> 
> IDV can:
> 
> Open the same ncml locally...
> 
> Open the NC file with the same description
> 
> 
> 
> But when I put the ncml through the TDS I get the following?
> 
> 
Hi David,
       The problem is that neither the nc nor ncml file properly define this 
file as a trajectory dataset, so when the IDV opened this file through the TDS 
server, it would try to do it as a typed dataset. Unless you add an adapter to 
the trajectory type dataset to this specific file, you will not be able to use 
a TDS server to serve this file. When you opened both nc and ncml file as local 
file, the IDV just tried it as a netcdf file and will not have any problem.


Yuan
> 
> java.io.IOException: Server returned HTTP response code: 400 for URL:
> http://staging.asascience.com:8989/thredds/dodsC/idvtest/ctd.ncml
> 
> at
> sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown
> Source)
> 
> at
> org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown
> Source)
> 
> at
> org.apache.xerces.impl.XMLVersionDetector.determineDocVersion(Unknown
> Source)
> 
> at
> org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> 
> at
> org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> 
> at org.apache.xerces.parsers.XMLParser.parse(Unknown
> Source)
> 
> at
> org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
> 
> at
> org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
> 
> at org.jdom.input.SAXBuilder.build(SAXBuilder.java:489)
> 
> at org.jdom.input.SAXBuilder.build(SAXBuilder.java:847)
> 
> at
> ucar.nc2.ncml.NcMLReader.readNcML(NcMLReader.java:213)
> 
> at
> ucar.nc2.ncml.NcMLReader.readNcML(NcMLReader.java:184)
> 
> at
> ucar.nc2.dataset.NetcdfDataset.acquireNcml(NetcdfDataset.java:788)
> 
> at
> ucar.nc2.dataset.NetcdfDataset.openOrAcquireFile(NetcdfDataset.java:664)
> 
> at
> ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:434)
> 
> at
> ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:514)
> 
> at
> ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:491)
> 
> at
> ucar.nc2.dt.TypedDatasetFactory.open(TypedDatasetFactory.java:155)
> 
> at
> ucar.unidata.data.sounding.CdmTrackAdapter.<init>(CdmTrackAdapter.java:1
> 24)
> 
> at
> ucar.unidata.data.sounding.TrackDataSource.doMakeAdapter(TrackDataSource
> .java:533)
> 
> at
> ucar.unidata.data.sounding.TrackDataSource.initTrack(TrackDataSource.jav
> a:489)
> 
> at
> ucar.unidata.data.sounding.TrackDataSource.getAdapters(TrackDataSource.j
> ava:547)
> 
> at
> ucar.unidata.data.sounding.TrackDataSource.initAfter(TrackDataSource.jav
> a:268)
> 
> at
> ucar.unidata.data.DataSourceImpl.initAfterCreation(DataSourceImpl.java:7
> 27)
> 
> at
> ucar.unidata.data.FilesDataSource.initAfterCreation(FilesDataSource.java
> :270)
> 
> at
> ucar.unidata.data.sounding.TrackDataSource.initAfterCreation(TrackDataSo
> urce.java:283)
> 
> at
> ucar.unidata.data.DataManager.createDataSource(DataManager.java:1490)
> 
> at
> ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataVie
> wer.java:1967)
> 
> at
> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewe
> r.java:1884)
> 
> at
> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewe
> r.java:1818)
> 
> at
> ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewe
> r.java:1791)
> 
> at
> ucar.unidata.idv.chooser.IdvChooser.makeDataSource(IdvChooser.java:907)
> 
> at
> ucar.unidata.idv.chooser.ThreddsHandler.processNodes(ThreddsHandler.java
> :745)
> 
> at
> ucar.unidata.idv.chooser.ThreddsHandler.doLoad(ThreddsHandler.java:604)
> 
> at
> ucar.unidata.idv.chooser.XmlChooser.doLoadInThread(XmlChooser.java:672)
> 
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
> 
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown
> Source)
> 
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> 
> at java.lang.reflect.Method.invoke(Unknown Source)
> 
> at ucar.unidata.util.Misc$2.run(Misc.java:1033)
> 
> at ucar.unidata.util.Misc$3.run(Misc.java:1061)
> 
> 
> 
> 
> 
> This URL does indeed return a error 400 - there should be something on
> the end to get the opendap data I think?
> 
> http://staging.asascience.com:8989/thredds/dodsC/idvtest/ctd.ncml
> 
> 
> 
> For instance...
> 
> http://staging.asascience.com:8989/thredds/dodsC/idvtest/ctd.ncml?altitu
> de[0:1:16165]
> 
> 
> 
> Hope this helps and feel free to try the server yourself!
> 
> 
> 
> David Stuebe
> 
> 
> 
> Applied Science Associates
> 
> 55 Village Square Drive
> 
> South Kingstown, RI 02879
> 
> 
> 
> Phone:  401 789 6224
> 
> Web:      www.asascience.com
> 
> Email:     address@hidden
> 
> 
> 
> 
> 


Ticket Details
===================
Ticket ID: RMR-226806
Department: Support IDV
Priority: Normal
Status: Open