Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Hello All,
I was hoping someone out there had some experience implementing the
ThreddsDatasetChooser component and would be willing to help me out a
bit. I've made a very simple test class to get the
ThreddsDatasetChooser up and running. The class is at the end of this
email. I'm able to display the dialog without much trouble, but I am
unable to make it connect to a catalog. When I enter a catalog URL into
the combobox and click "Connect", a progress dialog comes up after a few
seconds and tells me that it's "opening the catalog"...but after about
20 seconds or so, the dialog goes away and nothing else happens. I also
get the following exception in the output pane of my IDE:
Exception in thread "Thread-2" java.lang.NullPointerException
at
thredds.catalog.ui.CatalogFactoryCancellable$OpenCatalogTask.run(Catalog
FactoryCancellable.java:158)
at java.lang.Thread.run(Thread.java:613)
Can anyone help me out and let me know what I'm not doing or doing
wrong??
Thanks in advance,
Chris
import java.io.IOException;
import javax.swing.*;
import thredds.catalog.ui.ThreddsDatasetChooser;
import ucar.util.prefs.PreferencesExt;
import ucar.util.prefs.XMLStore;
/**
*
* @author asamac
*/
public class Browse {
/**
* Creates a new instance of Browse
*/
public Browse() {
}
private static void createAndShowGUI(){
JFrame frame = new JFrame("Thredds Catalog Browser");
frame.setSize(800, 600);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JTabbedPane tabPane = new JTabbedPane();
System.err.println("before");
XMLStore store = null;
try {
store = XMLStore.createFromFile("xmlStore.xml", null);
} catch (IOException ex) {
ex.printStackTrace();
}
PreferencesExt prefs = store.getPreferences();
System.err.println("prefs instantiated");
ThreddsDatasetChooser datasetChooser = new
ThreddsDatasetChooser(prefs, tabPane, frame, true, true);
System.err.println("tdc instantiated");
datasetChooser.addPropertyChangeListener( new
java.beans.PropertyChangeListener() {
public void propertyChange( java.beans.PropertyChangeEvent e)
{
if (e.getPropertyName().equals("Dataset")) {
System.err.println("single dataset");
}else if (e.getPropertyName().equals("Datasets")){
System.err.println("multiple datasets");
}else if (e.getPropertyName().equals("InvAccess")){
System.err.println("invAccess");
}
}
});
frame.add(tabPane);
frame.setVisible(true);
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}
Christopher Mueller | Scientist
Applied Science Associates
70 Dean Knauss Drive | Narragansett, RI 02882 USA
p: +1 401-789-6224 | f: +1 401-789-1932
e: cmueller@xxxxxxxxxxxxxx <mailto:ehowlett@xxxxxxxxxxxxxx> |
www.asascience.com <http://www.asascience.com/>
ASA | Science. Services. Solutions.
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