ucar.nc2.iosp.gini
Class Giniiosp

java.lang.Object
  ucar.nc2.iosp.gini.Giniiosp

All Implemented Interfaces:

IOServiceProvider

public class Giniiosp
extends java.lang.Object
implements IOServiceProvider

IOServiceProvider implementation abstract base class to read/write "version 3" netcdf files. AKA "file format version 1" files. see concrete class

Field Summary

protected boolean	debug
protected boolean	debugSize
protected boolean	debugSPIO
protected java.util.HashMap	dimHash
protected int	fileUsed
protected boolean	fill
protected ucar.nc2.iosp.gini.Giniheader	headerParser
protected boolean	readonly
protected int	recStart
protected boolean	showHeaderBytes

Constructor Summary

Giniiosp()

Method Summary

void	close() Close the file.
protected static char[]	convertByteToChar(byte[] byteArray)
protected static byte[]	convertCharToByte(char[] from)
short	convertunsignedByte2Short(byte b)
void	flush()
java.lang.String	getDetailInfo() Show debug / underlying implementation details
boolean	isValidFile(RandomAccessFile raf) Check if this is a valid file for this IOServiceProvider.
static void	main(java.lang.String[] args)
void	open(RandomAccessFile raf, NetcdfFile file, CancelTask cancelTask) Open existing file, and populate ncfile with it.
Array	readCompressedData(Variable v2, long dataPos, int[] origin, int[] shape, int[] stride)
Array	readCompressedZlib(Variable v2, long dataPos, int nx, int ny, int[] origin, int[] shape, int[] stride)
Array	readData(Variable v2, java.util.List sectionList) Read data from a top level Variable and return a memory resident Array.
Array	readDataOld(Variable v2, long dataPos, int[] origin, int[] shape, int[] stride)
Array	readNestedData(Variable v2, java.util.List section) Read data from a Variable that is nested in one or more Structures.
void	setSpecial(java.lang.Object special) A way to communicate arbitrary information to an iosp.
boolean	sync() Check if file has changed, and reread metadata if needed.
boolean	syncExtend() Extend the file if needed in a way that is compatible with the current metadata.
java.lang.String	toStringDebug(java.lang.Object o) Debug info for this object.

Methods inherited from class java.lang.Object

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

Field Detail

readonly

protected boolean readonly

headerParser

protected ucar.nc2.iosp.gini.Giniheader headerParser

fileUsed

protected int fileUsed

recStart

protected int recStart

debug

protected boolean debug

debugSize

protected boolean debugSize

debugSPIO

protected boolean debugSPIO

showHeaderBytes

protected boolean showHeaderBytes

fill

protected boolean fill

dimHash

protected java.util.HashMap dimHash

Constructor Detail

Giniiosp

public Giniiosp()

Method Detail

setSpecial

public void setSpecial(java.lang.Object special)

Description copied from interface: IOServiceProvider

A way to communicate arbitrary information to an iosp. Typically this is set before open() is called.

Specified by:

setSpecial in interface IOServiceProvider

Parameters:

special - opaque special settings.

readNestedData

public Array readNestedData(Variable v2,
                            java.util.List section)
                     throws java.io.IOException,
                            InvalidRangeException

Description copied from interface: IOServiceProvider

Read data from a Variable that is nested in one or more Structures. If there are no Structures in the file, this will never be called. Return an Array of the same type as the Variable and the requested shape. The shape must be an accumulation of all the shapes of the Structures containing the variable.

v2.getParent() is called to get the containing Structures.

Specified by:

readNestedData in interface IOServiceProvider

Parameters:

v2 - a nested Variable.

section - List of type Range specifying the section of data to read. There must be a Range for each Dimension in each parent, as well as in the Variable itself. Must be in order from outer to inner. Note: no nulls.

Returns:

the requested data in a memory-resident Array

Throws:

java.io.IOException

InvalidRangeException

isValidFile

public boolean isValidFile(RandomAccessFile raf)

Description copied from interface: IOServiceProvider

Check if this is a valid file for this IOServiceProvider.

Specified by:

isValidFile in interface IOServiceProvider

Parameters:

raf - RandomAccessFile

Returns:

true if valid.

open

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

Description copied from interface: IOServiceProvider

Open existing file, and populate ncfile with it.

Specified by:

open in interface IOServiceProvider

Parameters:

raf - the file to work on, it has already passed the isValidFile() test.

file - add objects to this NetcdfFile

cancelTask - used to monito user cancellation; may be null.

Throws:

java.io.IOException

readData

public Array readData(Variable v2,
                      java.util.List sectionList)
               throws java.io.IOException,
                      InvalidRangeException

Description copied from interface: IOServiceProvider

Read data from a top level Variable and return a memory resident Array. This Array has the same element type as the Variable, and the requested shape.

Specified by:

readData in interface IOServiceProvider

Parameters:

v2 - a top-level Variable

sectionList - List of type Range specifying the section of data to read. There must be a Range for each Dimension in the variable, in order. Note: no nulls.

Returns:

the requested data in a memory-resident Array

Throws:

java.io.IOException

InvalidRangeException

See Also:

Range

readDataOld

public Array readDataOld(Variable v2,
                         long dataPos,
                         int[] origin,
                         int[] shape,
                         int[] stride)
                  throws java.io.IOException,
                         InvalidRangeException

Throws:

java.io.IOException

InvalidRangeException

readCompressedData

public Array readCompressedData(Variable v2,
                                long dataPos,
                                int[] origin,
                                int[] shape,
                                int[] stride)
                         throws java.io.IOException,
                                InvalidRangeException

Throws:

java.io.IOException

InvalidRangeException

readCompressedZlib

public Array readCompressedZlib(Variable v2,
                                long dataPos,
                                int nx,
                                int ny,
                                int[] origin,
                                int[] shape,
                                int[] stride)
                         throws java.io.IOException,
                                InvalidRangeException

Throws:

java.io.IOException

InvalidRangeException

convertByteToChar

protected static char[] convertByteToChar(byte[] byteArray)

convertCharToByte

protected static byte[] convertCharToByte(char[] from)

flush

public void flush()
           throws java.io.IOException

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Description copied from interface: IOServiceProvider

Close the file. It is the IOServiceProvider's job to close the file (even though it didnt open it), and to free any other resources it has used.

Specified by:

close in interface IOServiceProvider

Throws:

java.io.IOException

syncExtend

public boolean syncExtend()

Description copied from interface: IOServiceProvider

Extend the file if needed in a way that is compatible with the current metadata. For example, if the unlimited dimension has grown.

Specified by:

syncExtend in interface IOServiceProvider

Returns:

true if file was exteneed.

sync

public boolean sync()

Description copied from interface: IOServiceProvider

Check if file has changed, and reread metadata if needed.

Specified by:

sync in interface IOServiceProvider

Returns:

true if file was changed.

convertunsignedByte2Short

public short convertunsignedByte2Short(byte b)

toStringDebug

public java.lang.String toStringDebug(java.lang.Object o)

Debug info for this object.

Specified by:

toStringDebug in interface IOServiceProvider

getDetailInfo

public java.lang.String getDetailInfo()

Description copied from interface: IOServiceProvider

Show debug / underlying implementation details

Specified by:

getDetailInfo in interface IOServiceProvider

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception,
                        java.io.IOException,
                        java.lang.InstantiationException,
                        java.lang.IllegalAccessException

Throws:

java.lang.Exception

java.io.IOException

java.lang.InstantiationException

java.lang.IllegalAccessException