org.orekit.models.earth.atmosphere.data

Class CssiSpaceWeatherDataLoader

java.lang.Object

org.orekit.models.earth.atmosphere.data.CssiSpaceWeatherDataLoader

All Implemented Interfaces:

DataLoader

public class CssiSpaceWeatherDataLoader
extends Object
implements DataLoader

This class reads solar activity data from CSSI Space Weather files for the class CssiSpaceWeatherData.

The data are retrieved through space weather files offered by CSSI/AGI. The data can be retrieved on the AGI FTP. This file is updated several times a day by using several sources mentioned in the Celestrak space weather data documentation.

Since:

10.2

Author:

Clément Jonglez

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CssiSpaceWeatherDataLoader.LineParameters Container class for Solar activity indexes.
static class	CssiSpaceWeatherDataLoader.LineReader Helper class to parse line data and to raise exceptions if needed.

Constructor Summary

Constructors

Constructor and Description
CssiSpaceWeatherDataLoader(TimeScale utc) Constructor.

Method Summary

Modifier and Type	Method and Description
SortedSet<TimeStamped>	getDataSet() Getter for the data set.
AbsoluteDate	getLastDailyPredictedDate() Gets the day (at data start) of the last daily data entry.
AbsoluteDate	getLastObservedDate() Gets the day (at data start) of the last observed data entry.
AbsoluteDate	getMaxDate() Gets the available data range maximum date.
AbsoluteDate	getMinDate() Gets the available data range minimum date.
void	loadData(InputStream input, String name) Load data from a stream.
boolean	stillAcceptsData() Check if the loader still accepts new data.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CssiSpaceWeatherDataLoader

public CssiSpaceWeatherDataLoader(TimeScale utc)

Constructor.

Parameters:

utc - UTC time scale

Method Detail

getDataSet

public SortedSet<TimeStamped> getDataSet()

Getter for the data set.

Returns:

the data set

getMinDate

public AbsoluteDate getMinDate()

Gets the available data range minimum date.

Returns:

the minimum date.

getMaxDate

public AbsoluteDate getMaxDate()

Gets the available data range maximum date.

Returns:

the maximum date.

getLastDailyPredictedDate

public AbsoluteDate getLastDailyPredictedDate()

Gets the day (at data start) of the last daily data entry.

Returns:

the last daily predicted date

getLastObservedDate

public AbsoluteDate getLastObservedDate()

Gets the day (at data start) of the last observed data entry.

Returns:

the last observed date

loadData

public void loadData(InputStream input,
                     String name)
              throws IOException,
                     ParseException,
                     OrekitException

Load data from a stream.

Specified by:

loadData in interface DataLoader

Parameters:

input - data input stream

name - name of the file (or zip entry)

Throws:

IOException - if data can't be read

ParseException - if data can't be parsed or if some loader specific error occurs

OrekitException

stillAcceptsData

public boolean stillAcceptsData()

Check if the loader still accepts new data.

This method is used to speed up data loading by interrupting crawling the data sets as soon as a loader has found the data it was waiting for. For loaders that can merge data from any number of sources (for example JPL ephemerides or Earth Orientation Parameters that are split among several files), this method should always return true to make sure no data is left over.

Specified by:

stillAcceptsData in interface DataLoader

Returns:

true while the loader still accepts new data