visad.data.netcdf
Class NetCDF

java.lang.Object
  visad.data.FormNode
      visad.data.Form
          visad.data.netcdf.NetCDF

All Implemented Interfaces:

FormFileInformer

Direct Known Subclasses:

Plain

public abstract class NetCDF
extends Form
implements FormFileInformer

The NetCDF class provides an abstract class for the family of netCDF data forms for files in a local directory.

Field Summary

Fields inherited from class visad.data.Form

mathType

Constructor Summary

NetCDF(String name)
Construct a netCDF data form.

Method Summary

String[]	getDefaultSuffixes() Returns the path-component suffixes that identifies a dataset specification as being a netCDF dataset specification.
boolean	isThisType(byte[] block) Indicates if a given block of bytes is the start of a netCDF dataset.
boolean	isThisType(String spec) Indicates if a dataset specification is consistent with a netCDF dataset specification.
abstract DataImpl	open(String path) Open an existing file.

Methods inherited from class visad.data.Form

getMathType

Methods inherited from class visad.data.FormNode

add, getForms, getName, open, save

Methods inherited from class java.lang.Object

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

Constructor Detail

NetCDF

public NetCDF(String name)

Construct a netCDF data form.

Parameters:

name - The name for the family of netCDF data forms.

Method Detail

open

public abstract DataImpl open(String path)
                       throws BadFormException,
                              IOException,
                              VisADException

Open an existing file.

Specified by:

open in class FormNode

Parameters:

path - The pathname of the file.

Throws:

BadFormException - netCDF couldn't handle VisAD object.

VisADException - Couldn't create necessary VisAD object.

IOException - I/O error.

isThisType

public boolean isThisType(String spec)

Indicates if a dataset specification is consistent with a netCDF dataset specification.

Specified by:

isThisType in interface FormFileInformer

Parameters:

spec - A dataset specification. NB: Not a URL.

Returns:

true if and only if the dataset specification is consistent with a netCDF dataset specification.

isThisType

public boolean isThisType(byte[] block)

Indicates if a given block of bytes is the start of a netCDF dataset.

Specified by:

isThisType in interface FormFileInformer

Parameters:

block - A block of data.

Returns:

True if and only if the given block of bytes is the start of a netCDF dataset.

getDefaultSuffixes

public String[] getDefaultSuffixes()

Returns the path-component suffixes that identifies a dataset specification as being a netCDF dataset specification. The suffixes don't have a leading period. The returned array can be safely modified.

Specified by:

getDefaultSuffixes in interface FormFileInformer

Returns:

A freshly-allocated array with the relevant suffixes.