visad.data.hrit
Class HRITForm

java.lang.Object
  visad.data.FormNode
      visad.data.Form
          visad.data.hrit.HRITForm

All Implemented Interfaces:

FormFileInformer

public class HRITForm
extends Form
implements FormFileInformer

to allow determination of whether a data file is of type HRIT

Field Summary

Fields inherited from class visad.data.Form

mathType

Constructor Summary

HRITForm()

Method Summary

void	add(String id, Data data, boolean replace) This has not been implemented
String[]	getDefaultSuffixes() return a list of suffixes associated with this file type
FormNode	getForms(Data data) not implemented yet
boolean	isThisType(byte[] block) This method will be used to identify an HRIT file by examining the contents of the first block of data values.
boolean	isThisType(String name) determine the file type by name.
DataImpl	open(String path) read the HRIT file from local disk, and return the HRIT data as a DataImpl object (a FlatField).
DataImpl	open(URL url) read the HRIT file from a URL, and return the HRIT file as a DataImpl object (a FlatField).
void	save(String id, Data data, boolean replace) save the file back to disk This has not been implemented yet

Methods inherited from class visad.data.Form

getMathType

Methods inherited from class visad.data.FormNode

getName

Methods inherited from class java.lang.Object

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

Constructor Detail

HRITForm

public HRITForm()

Method Detail

isThisType

public boolean isThisType(String name)

determine the file type by name. At present we are only checking for MSG2 HRIT files. This will change.

Specified by:

isThisType in interface FormFileInformer

Parameters:

name - is the filename in question

Returns:

true if the name is right for this type of form

isThisType

public boolean isThisType(byte[] block)

This method will be used to identify an HRIT file by examining the contents of the first block of data values. Presently unimplemented.

Specified by:

isThisType in interface FormFileInformer

Parameters:

block - is an array of ? length from the beginning of the file in question.

Returns:

true if the magic number is right

getDefaultSuffixes

public String[] getDefaultSuffixes()

return a list of suffixes associated with this file type

Specified by:

getDefaultSuffixes in interface FormFileInformer

Returns:

array of suffixes

save

public void save(String id,
                 Data data,
                 boolean replace)
          throws BadFormException,
                 IOException,
                 RemoteException,
                 VisADException

save the file back to disk This has not been implemented yet

Specified by:

save in class FormNode

Throws:

BadFormException

IOException

RemoteException

VisADException

add

public void add(String id,
                Data data,
                boolean replace)
         throws BadFormException

This has not been implemented

Specified by:

add in class FormNode

Throws:

BadFormException

open

public DataImpl open(String path)
              throws BadFormException,
                     RemoteException,
                     VisADException

read the HRIT file from local disk, and return the HRIT data as a DataImpl object (a FlatField).

Specified by:

open in class FormNode

Parameters:

path - is the fully-qualified pathname

Throws:

BadFormException

RemoteException

VisADException

open

public DataImpl open(URL url)
              throws BadFormException,
                     VisADException,
                     IOException

read the HRIT file from a URL, and return the HRIT file as a DataImpl object (a FlatField).

Specified by:

open in class FormNode

Parameters:

url - is the fully-formed URL

Throws:

BadFormException

VisADException

IOException

getForms

public FormNode getForms(Data data)

not implemented yet

Specified by:

getForms in class FormNode