org.orekit.forces.gravity.tides.coefficients
Class OceanTidesCoefficientsReader

java.lang.Object
  org.orekit.forces.gravity.tides.coefficients.OceanTidesCoefficientsReader

All Implemented Interfaces:

DataLoader, OceanTidesCoefficientsProvider

Direct Known Subclasses:

FES2004FormatReader

public abstract class OceanTidesCoefficientsReader
extends Object
implements DataLoader, OceanTidesCoefficientsProvider

This abstract class represents a Ocean Tides Coefficients file reader.

For any format specific reader of ocean tides coefficients file, this interface represents all the methods that should be implemented by a reader.
The proper way to use this it to call the getCoefficientProvider method. Indeed, the OceanTidesCoefficientsFactory will determine the best reader to use, depending on file available in the file system.

Since:

1.2

Version:

$Id: OceanTidesCoefficientsReader.java 11822 2014-12-17 16:18:37Z maggiorani $

Author:

Rami Houdroge

See Also:

OceanTidesCoefficientsFactory

Concurrency :

not thread-safe

Concurrency comment :

instance is mutable

Field Summary

protected boolean

readCompleted Indicator for completed read.

Constructor Summary

protected

OceanTidesCoefficientsReader(String supportedNames) Simple constructor.

Method Summary

protected void	add(OceanTidesCoefficientsSet set) Add a OceanTidesCoefficientsSet to the data map
double[]	getCpmEpm(double nDoodson, int l, int m) Get the Clm± and εlm± for given wave
double[]	getCpmSpm(double nDoodson, int l, int m) Get the Clm± and Slm± for given wave
double[]	getDoodsonNumbers() Get available Doodson numbers
int	getMaxDegree(double doodson, int order) Get maximum degree for given wave and order
int	getMaxOrder(double doodson) Get maximum order for given wave
int	getMinDegree(double doodson, int order) Get min degree for given wave and order
String	getSupportedNames() Get the regular expression for supported files names.
protected boolean	isEmpty() Chech if data map is empty
abstract 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

Field Detail

readCompleted

protected boolean readCompleted

Indicator for completed read.

Constructor Detail

OceanTidesCoefficientsReader

protected OceanTidesCoefficientsReader(String supportedNames)

Simple constructor.

Build an uninitialized reader.

Parameters:

supportedNames - regular expression for supported files names

Method Detail

getDoodsonNumbers

public double[] getDoodsonNumbers()

Get available Doodson numbers

Specified by:

getDoodsonNumbers in interface OceanTidesCoefficientsProvider

Returns:

array of Doodson numbers

getMaxDegree

public int getMaxDegree(double doodson,
                        int order)

Get maximum degree for given wave and order

Specified by:

getMaxDegree in interface OceanTidesCoefficientsProvider

Parameters:

doodson - number

order - of wave

Returns:

Max degree for given wave

getMinDegree

public int getMinDegree(double doodson,
                        int order)

Get min degree for given wave and order

Specified by:

getMinDegree in interface OceanTidesCoefficientsProvider

Parameters:

doodson - number

order - of wave

Returns:

Min degree for given wave

getMaxOrder

public int getMaxOrder(double doodson)

Get maximum order for given wave

Specified by:

getMaxOrder in interface OceanTidesCoefficientsProvider

Parameters:

doodson - number

Returns:

Max order for given wave

getCpmSpm

public double[] getCpmSpm(double nDoodson,
                          int l,
                          int m)

Get the C_lm^± and S_lm^± for given wave

Specified by:

getCpmSpm in interface OceanTidesCoefficientsProvider

Parameters:

nDoodson - doodson number

l - order

m - degree

Returns:

double[4] array containing {C_lm⁺, C_lm^-, S_lm⁺, S_lm^-}

getCpmEpm

public double[] getCpmEpm(double nDoodson,
                          int l,
                          int m)

Get the C_lm^± and ε_lm^± for given wave

Specified by:

getCpmEpm in interface OceanTidesCoefficientsProvider

Parameters:

nDoodson - doodson number doodson number

l - order

m - degree

Returns:

double[4] array containing {C_lm⁺, C_lm^-, ε_lm⁺, ε_lm^-}

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

loadData

public abstract 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

OrekitException - if some data is missing or if some loader specific error occurs

getSupportedNames

public String getSupportedNames()

Get the regular expression for supported files names.

Returns:

regular expression for supported files names

isEmpty

protected boolean isEmpty()

Chech if data map is empty

Returns:

true if it is

add

protected void add(OceanTidesCoefficientsSet set)

Add a OceanTidesCoefficientsSet to the data map

Parameters:

set - set to add to map