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.

Author:

Unidata Java Development Team

Field Summary

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 Number	IMISS Integer missing attribute
protected static String	MISSING_VAR name for the time variable
protected NetcdfFile	ncfile The netCDF file
protected StringBuilder	parseInfo place to store debug stuff
protected RandomAccessFile	raf the file we are reading
protected static Number	RMISS Float missing attribute
protected static String	TIME_VAR name for the time variable

Constructor Summary

GempakStationFileIOSP()

Method Summary

protected void	addGlobalAttributes() Add on global attributes for all types
protected void	buildNCFile() Build the netCDF file
void	close() Close this IOSP
protected abstract void	fillNCFile() Fill the contents of the netCDF file.
String	getCFFeatureType() Get the CF feature type, subclasses should override
String	getConventions() Get the netCDF conventions identifier.
String	getDetailInfo() Get the detail information
protected String	getStackTrace() Return the stack trace of this calling thread
protected int	getStnVarSize(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, 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(String varname, Dimension firstDim) Make a station variable
protected List<Variable>	makeStationVars(List<GempakStation> stations, Dimension dim) Make the station variables from a representative station
protected Structure	makeStructure(String partName, List dimensions, boolean includeMissing) Make a structure for the part
void	open(RandomAccessFile raf, NetcdfFile ncfile, CancelTask cancelTask) Open the service provider for reading.
protected void	printStack(String msg, int maxLines) Print the stack trace for a given line of code.
boolean	sync() Sync the file
boolean	syncExtend() Sync and extend

Methods inherited from class ucar.nc2.iosp.AbstractIOServiceProvider

createValidNetcdfObjectName, getFileTypeVersion, getStructureIterator, readSection, readToByteChannel, sendIospMessage, 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

ncfile

protected NetcdfFile ncfile

The netCDF file

raf

protected RandomAccessFile raf

the file we are reading

gemreader

protected AbstractGempakStationFileReader gemreader

Gempak file reader

parseInfo

protected StringBuilder parseInfo

place to store debug stuff

RMISS

protected static final Number RMISS

Float missing attribute

IMISS

protected static final 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 String TIME_VAR

name for the time variable

See Also:

Constant Field Values

MISSING_VAR

protected static final 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 IOException

Is this a valid file?

Parameters:

raf - RandomAccessFile to check

Returns:

true if a valid Gempak grid file

Throws:

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 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:

IOException - problem reading file

close

public void close()
           throws IOException

Close this IOSP

Specified by:

close in interface IOServiceProvider

Overrides:

close in class AbstractIOServiceProvider

Throws:

IOException - problem closing file

syncExtend

public boolean syncExtend()

Sync and extend

Specified by:

syncExtend in interface IOServiceProvider

Overrides:

syncExtend in class AbstractIOServiceProvider

Returns:

false

getDetailInfo

public String getDetailInfo()

Get the detail information

Specified by:

getDetailInfo in interface IOServiceProvider

Overrides:

getDetailInfo in class AbstractIOServiceProvider

Returns:

the detail info

sync

public boolean sync()
             throws IOException

Sync the file

Specified by:

sync in interface IOServiceProvider

Overrides:

sync in class AbstractIOServiceProvider

Returns:

true if needed to sync

Throws:

IOException - problem synching the file

buildNCFile

protected void buildNCFile()
                    throws IOException

Build the netCDF file

Throws:

IOException - problem reading the file

fillNCFile

protected abstract void fillNCFile()
                            throws IOException

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

Throws:

IOException - problem reading the file

makeStructure

protected Structure makeStructure(String partName,
                                  List 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,
                                     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 String getConventions()

Get the netCDF conventions identifier.

Returns:

the convention name

getCFFeatureType

public String getCFFeatureType()

Get the CF feature type, subclasses should override

Returns:

the feature type

getStnVarSize

protected int getStnVarSize(String name)

Get the size of a particular station variable

Parameters:

name - name of the variable (key)

Returns:

size or -1

makeStationVars

protected List<Variable> makeStationVars(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(String varname,
                                       Dimension firstDim)

Make a station variable

Parameters:

varname - variable name

firstDim - station dimension

Returns:

corresponding variable

printStack

protected void printStack(String msg,
                          int maxLines)

Print the stack trace for a given line of code.

Parameters:

msg - message to print

maxLines - number of lines in the stack to print

getStackTrace

protected String getStackTrace()

Return the stack trace of this calling thread

Returns:

The stack trace