Package ucar.nc2.grib.collection

Class GribDataReader

java.lang.Object

ucar.nc2.grib.collection.GribDataReader

@Immutable
public abstract class GribDataReader
extends Object

Grib Data Reader. Split from GribIosp, so can be used by GribCoverage.

Since:

4/6/11

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	GribDataReader.DataReceiver
static interface	GribDataReader.DataReceiverIF
static class	GribDataReader.DataRecord

Field Summary

Fields

Modifier and Type	Field	Description
static String	currentDataRafFilename
static GribCollectionImmutable.Record	currentDataRecord
protected GribCollectionImmutable	gribCollection
static GribDataValidator	validator

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	GribDataReader(GribCollectionImmutable gribCollection, GribCollectionImmutable.VariableIndex vindex)

Method Summary

Modifier and Type	Method	Description
static GribDataReader	factory(GribCollectionImmutable gribCollection, GribCollectionImmutable.VariableIndex vindex)
Array	readData(SectionIterable want)	Read the section of data described by want
protected abstract float[]	readData(RandomAccessFile rafData, GribDataReader.DataRecord dr)
Array	readData2(CoordsSet want, RangeIterator yRange, RangeIterator xRange)
protected abstract void	show(RandomAccessFile rafData, long dataPos)

Methods inherited from class java.lang.Object

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

Field Detail

currentDataRecord

public static GribCollectionImmutable.Record currentDataRecord

validator

public static GribDataValidator validator

currentDataRafFilename

public static String currentDataRafFilename

gribCollection

protected final GribCollectionImmutable gribCollection

Constructor Detail

GribDataReader

protected GribDataReader(GribCollectionImmutable gribCollection,
                         GribCollectionImmutable.VariableIndex vindex)

Method Detail

factory

public static GribDataReader factory(GribCollectionImmutable gribCollection,
                                     GribCollectionImmutable.VariableIndex vindex)

readData

protected abstract float[] readData(RandomAccessFile rafData,
                                    GribDataReader.DataRecord dr)
                             throws IOException

Throws:

IOException

show

protected abstract void show(RandomAccessFile rafData,
                             long dataPos)
                      throws IOException

Throws:

IOException

readData

public Array readData(SectionIterable want)
               throws IOException,
                      InvalidRangeException

Read the section of data described by want

Parameters:

want - which data do you want?

Returns:

data as an Array

Throws:

IOException

InvalidRangeException

readData2

public Array readData2(CoordsSet want,
                       RangeIterator yRange,
                       RangeIterator xRange)
                throws IOException

Throws:

IOException