ucar.nc2.iosp.gempak

Class GempakStationFileIOSP

java.lang.Object

ucar.nc2.iosp.AbstractIOServiceProvider

ucar.nc2.iosp.gempak.GempakStationFileIOSP

All Implemented Interfaces:

IOServiceProvider

Direct Known Subclasses:

GempakSoundingIOSP, GempakSurfaceIOSP

public abstract class GempakStationFileIOSP
extends AbstractIOServiceProvider

An IOSP for Gempak Station (SF,SN) data.

Field Summary

Fields

Modifier and Type	Field and Description
protected static Dimension	DIM_LEN2 static for shared dimension of length 2
protected static Dimension	DIM_LEN4 static for shared dimension of length 4
protected static Dimension	DIM_LEN8 static for shared dimension of length 4
protected AbstractGempakStationFileReader	gemreader Gempak file reader
protected static java.lang.Number	IMISS Integer missing attribute
protected static java.lang.String	MISSING_VAR name for the time variable
protected java.lang.StringBuilder	parseInfo place to store debug stuff
protected static java.lang.Number	RMISS Float missing attribute
protected static java.lang.String	TIME_VAR name for the time variable

Fields inherited from class ucar.nc2.iosp.AbstractIOServiceProvider

location, ncfile, raf, rafOrder

Constructor Summary

Constructors

Constructor and Description
GempakStationFileIOSP()

Method Summary

Modifier and Type	Method and Description
protected void	addGlobalAttributes() Add on global attributes for all types
protected void	buildNCFile() Build the netCDF file
protected abstract void	fillNCFile() Fill the contents of the netCDF file.
java.lang.String	getCFFeatureType() Get the CF feature type, subclasses should override
java.lang.String	getConventions() Get the netCDF conventions identifier.
java.lang.String	getDetailInfo() Get the detail information
protected int	getStnVarSize(java.lang.String name) Get the size of a particular station variable
boolean	isValidFile(RandomAccessFile raf) Is this a valid file?
protected Variable	makeMissingVariable() Make the missing variable
protected Variable	makeParamVariable(GempakParameter param, java.util.List<Dimension> dims) Make a variable from a GempakParmaeter
protected abstract AbstractGempakStationFileReader	makeStationReader() Make the appropriate station file reader, subclasses need to implement this
protected Variable	makeStationVariable(java.lang.String varname, Dimension firstDim) Make a station variable
protected java.util.List<Variable>	makeStationVars(java.util.List<GempakStation> stations, Dimension dim) Make the station variables from a representative station
protected Structure	makeStructure(java.lang.String partName, java.util.List<Dimension> dimensions, boolean includeMissing) Make a structure for the part
void	open(RandomAccessFile raf, NetcdfFile ncfile, CancelTask cancelTask) Open the service provider for reading.

Methods inherited from class ucar.nc2.iosp.AbstractIOServiceProvider

close, getFileTypeVersion, getLastModified, getStructureIterator, reacquire, readSection, readToByteChannel, readToOutputStream, release, sendIospMessage, streamToByteChannel, syncExtend, toStringDebug

Methods inherited from class java.lang.Object

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

Methods inherited from interface ucar.nc2.iosp.IOServiceProvider

getFileTypeDescription, getFileTypeId, readData

Field Detail

gemreader

protected AbstractGempakStationFileReader gemreader

Gempak file reader

parseInfo

protected java.lang.StringBuilder parseInfo

place to store debug stuff

RMISS

protected static final java.lang.Number RMISS

Float missing attribute

IMISS

protected static final java.lang.Number IMISS

Integer missing attribute

DIM_LEN8

protected static final Dimension DIM_LEN8

static for shared dimension of length 4

DIM_LEN4

protected static final Dimension DIM_LEN4

static for shared dimension of length 4

DIM_LEN2

protected static final Dimension DIM_LEN2

static for shared dimension of length 2

TIME_VAR

protected static final java.lang.String TIME_VAR

name for the time variable

See Also:

Constant Field Values

MISSING_VAR

protected static final java.lang.String MISSING_VAR

name for the time variable

See Also:

Constant Field Values

Constructor Detail

GempakStationFileIOSP

public GempakStationFileIOSP()

Method Detail

isValidFile

public boolean isValidFile(RandomAccessFile raf)
                    throws java.io.IOException

Is this a valid file?

Parameters:

raf - RandomAccessFile to check

Returns:

true if a valid Gempak grid file

Throws:

java.io.IOException - problem reading file

makeStationReader

protected abstract AbstractGempakStationFileReader makeStationReader()

Make the appropriate station file reader, subclasses need to implement this

Returns:

the appropriate reader for that subclass

open

public void open(RandomAccessFile raf,
                 NetcdfFile ncfile,
                 CancelTask cancelTask)
          throws java.io.IOException

Open the service provider for reading.

Specified by:

open in interface IOServiceProvider

Overrides:

open in class AbstractIOServiceProvider

Parameters:

raf - file to read from

ncfile - netCDF file we are writing to (memory)

cancelTask - task for cancelling

Throws:

java.io.IOException - problem reading file

getDetailInfo

public java.lang.String getDetailInfo()

Get the detail information

Specified by:

getDetailInfo in interface IOServiceProvider

Overrides:

getDetailInfo in class AbstractIOServiceProvider

Returns:

the detail info

buildNCFile

protected void buildNCFile()
                    throws java.io.IOException

Build the netCDF file

Throws:

java.io.IOException - problem reading the file

fillNCFile

protected abstract void fillNCFile()
                            throws java.io.IOException

Fill the contents of the netCDF file. Assumes that the file has been cleared.

Throws:

java.io.IOException - problem reading the file

makeStructure

protected Structure makeStructure(java.lang.String partName,
                                  java.util.List<Dimension> dimensions,
                                  boolean includeMissing)

Make a structure for the part

Parameters:

partName - partname

dimensions - dimensions for the structure

includeMissing - true to include the missing variable

Returns:

a Structure

makeMissingVariable

protected Variable makeMissingVariable()

Make the missing variable

Returns:

the missing variable

makeParamVariable

protected Variable makeParamVariable(GempakParameter param,
                                     java.util.List<Dimension> dims)

Make a variable from a GempakParmaeter

Parameters:

param - GempakParameter

dims - Variable dimensions

Returns:

the Variable

addGlobalAttributes

protected void addGlobalAttributes()

Add on global attributes for all types

getConventions

public java.lang.String getConventions()

Get the netCDF conventions identifier.

Returns:

the convention name

getCFFeatureType

public java.lang.String getCFFeatureType()

Get the CF feature type, subclasses should override

Returns:

the feature type

getStnVarSize

protected int getStnVarSize(java.lang.String name)

Get the size of a particular station variable

Parameters:

name - name of the variable (key)

Returns:

size or -1

makeStationVars

protected java.util.List<Variable> makeStationVars(java.util.List<GempakStation> stations,
                                                   Dimension dim)

Make the station variables from a representative station

Parameters:

stations - list of stations

dim - station dimension

Returns:

the list of variables

makeStationVariable

protected Variable makeStationVariable(java.lang.String varname,
                                       Dimension firstDim)

Make a station variable

Parameters:

varname - variable name

firstDim - station dimension

Returns:

corresponding variable