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*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
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// $Id: TestRealTimeUpdate.java 51 2006-07-12 17:13:13Z caron $
package ucar.nc2.dt.trajectory;
import org.junit.Test;
import static org.junit.Assert.*;
import ucar.nc2.NetcdfFile;
import ucar.nc2.Dimension;
import ucar.nc2.Variable;
import ucar.nc2.Attribute;
import ucar.nc2.constants.FeatureType;
import ucar.nc2.dt.TrajectoryObsDataset;
import ucar.nc2.dt.TrajectoryObsDatatype;
import ucar.nc2.dt.TypedDatasetFactory;
import ucar.ma2.Array;
import java.io.IOException;
import java.util.Date;
/**
* @author edavis
* @since Feb 7, 2006 10:10:45 AM
*/
public class TestRealTimeUpdate
{
private String testDataFileOut = "test.TrajectoryRealTimeUpdate.tmp.nc";
/**
* Test ...
*/
//@Test
public void testMuckWithNcfSynchExtend()
{
NetcdfFile ncf = null;
try
{
ncf = NetcdfFile.open( testDataFileOut );
}
catch ( IOException e )
{
assertTrue( "Couldn't open file <" + testDataFileOut + ">: " + e.getMessage(),
false );
return;
}
Dimension timeDim = ncf.getRootGroup().findDimension( "time");
int timeDimSize = timeDim.getLength();
Variable timeVar = ncf.getRootGroup().findVariable( "time");
Variable latVar = ncf.getRootGroup().findVariable( "latitude");
Variable lonVar = ncf.getRootGroup().findVariable( "longitude");
Variable altVar = ncf.getRootGroup().findVariable( "altitude");
Attribute timeUnits = timeVar.findAttribute( "units");
String newUnits = "test unit string";
System.out.println( "Switching time units from \"" + timeUnits.toString() + " \" to \"" + newUnits + "\"" );
timeVar.addAttribute( new Attribute( "units", newUnits) );
Array latArray;
try
{
latArray = latVar.read();
}
catch ( IOException e )
{
assertTrue( "Couldn't read latitude data: " + e.getMessage(),
false );
return;
}
try { Thread.sleep( 5000);
}
catch ( InterruptedException e ) {
}
boolean extended;
try
{
extended = ncf.syncExtend();
}
catch ( IOException e )
{
assertTrue( "Couldn't syncExtend() file <" + testDataFileOut + ">: " + e.getMessage(),
false );
return;
}
if ( ! extended )
{
System.out.println( "Did not extend file <" + testDataFileOut + ">." );
}
Dimension timeDim2 = ncf.getRootGroup().findDimension( "time");
if ( timeDim == timeDim2 )
System.out.println( "Time dimension the same." );
else
System.out.println( "Time dimension not the same." );
System.out.println( "Initial time dim size = " + timeDimSize );
System.out.println( "New time dim size = " + timeDim2.getLength() );
System.out.println( "New time dim size (1) = " + timeDim.getLength() );
System.out.println( "Time var units string: " + timeVar.findAttribute( "units").toString() );
if ( latVar == ncf.getRootGroup().findVariable( "latitude"))
System.out.println( "Lat var the same." );
else
System.out.println( "Lat var not the same." );
}
//@Test
public void testTwo()
{
TrajectoryObsDataset trajDs;
try
{
//trajDs = TrajectoryObsDatasetFactory.open( testDataFileOut );
StringBuilder errlog = new StringBuilder();
trajDs = (TrajectoryObsDataset) TypedDatasetFactory.open(FeatureType.TRAJECTORY, testDataFileOut, null, errlog);
}
catch ( IOException e )
{
assertTrue( "Couldn't open TrajectoryObsDataset <" + testDataFileOut + ">: " + e.getMessage(),
false );
return;
}
Date startDate = trajDs.getStartDate();
Date endDate = trajDs.getEndDate();
System.out.println( "Dataset start date=" + startDate );
System.out.println( "Dataset end date =" + endDate );
TrajectoryObsDatatype traj = trajDs.getTrajectory( "trajectory data");
Date trajEndDate;
Array presArray;
try
{
trajEndDate = traj.getTime( traj.getNumberPoints() - 1);
presArray = traj.getData( traj.getNumberPoints() - 1, "HADS_A");
}
catch ( IOException e )
{
assertTrue( "Failed to read last time or pressure from <" + testDataFileOut + ">: " + e.getMessage(),
false );
return;
}
System.out.println( "Traj end date =" + trajEndDate );
System.out.println( "Pressure end value=" + presArray.getFloat( presArray.getIndex()));
try
{
Thread.sleep( 10000 );
}
catch ( InterruptedException e )
{
}
if ( ! trajDs.syncExtend() )
System.out.println( "File not extended." );
else
System.out.println( "File extended" );
startDate = trajDs.getStartDate();
endDate = trajDs.getEndDate();
System.out.println( "Start date=" + startDate );
System.out.println( "End date =" + endDate );
try
{
trajEndDate = traj.getTime( traj.getNumberPoints() - 1 );
presArray = traj.getData( traj.getNumberPoints() - 1, "HADS_A" );
}
catch ( IOException e )
{
assertTrue( "Failed to read last time or pressure from <" + testDataFileOut + ">: " + e.getMessage(),
false );
return;
}
System.out.println( "Traj end date =" + trajEndDate );
System.out.println( "Pressure end value=" + presArray.getFloat( presArray.getIndex() ) );
}
}