ucar.nc2.iosp.nowrad

Class NOWRadiosp

java.lang.Object

ucar.nc2.iosp.AbstractIOServiceProvider

ucar.nc2.iosp.nowrad.NOWRadiosp

All Implemented Interfaces:

IOServiceProvider

public class NOWRadiosp
extends AbstractIOServiceProvider

Created by IntelliJ IDEA. User: yuanho Date: Feb 10, 2010 Time: 11:22:03 AM To change this template use File | Settings | File Templates.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	debug
protected boolean	debugSize
protected boolean	debugSPIO
protected java.util.HashMap	dimHash
protected int	fileUsed
protected boolean	fill
protected NOWRadheader	headerParser
protected boolean	readonly
protected int	recStart
protected boolean	showHeaderBytes

Fields inherited from class ucar.nc2.iosp.AbstractIOServiceProvider

location, ncfile, raf, rafOrder

Constructor Summary

Constructors

Constructor and Description
NOWRadiosp()

Method Summary

Modifier and Type	Method and Description
static int	bytesToInt(byte a, byte b, boolean swapBytes)
static int	bytesToInt(short a, short b, boolean swapBytes)
java.lang.String	getFileTypeDescription() Get a human-readable description for this file type.
java.lang.String	getFileTypeId() Get a unique id for this file type.
boolean	isValidFile(RandomAccessFile raf) Check if the file is a NOWRad file
void	open(RandomAccessFile raf, NetcdfFile file, CancelTask cancelTask) Open the file and read the header part
void	reacquire() Reacquire any resources like file handles Used when reactivating in cache.
Array	readData(Variable v2, Section section) Read the data for each variable passed in
byte[]	readOneRowData(byte[] ddata, int rLen, int xt) Read data from encoded values and run len into regular data array
java.lang.Object	readOneScanData(java.nio.ByteBuffer bos, ucar.nc2.iosp.nowrad.NOWRadheader.Vinfo vinfo, java.lang.String vName) Read one scan radar data

Methods inherited from class ucar.nc2.iosp.AbstractIOServiceProvider

build, buildFinish, close, getDetailInfo, getFileTypeVersion, getLastModified, getStructureIterator, isBuilder, readSection, readToByteChannel, readToOutputStream, release, sendIospMessage, setNetcdfFile, streamToByteChannel, syncExtend, toStringDebug

Methods inherited from class java.lang.Object

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

Field Detail

fileUsed

protected int fileUsed

recStart

protected int recStart

debug

protected boolean debug

debugSize

protected boolean debugSize

debugSPIO

protected boolean debugSPIO

showHeaderBytes

protected boolean showHeaderBytes

dimHash

protected java.util.HashMap dimHash

fill

protected boolean fill

headerParser

protected NOWRadheader headerParser

readonly

protected boolean readonly

Constructor Detail

NOWRadiosp

public NOWRadiosp()

Method Detail

isValidFile

public boolean isValidFile(RandomAccessFile raf)

Check if the file is a NOWRad file

Parameters:

raf - RandomAccessFile

Returns:

true if valid.

getFileTypeId

public java.lang.String getFileTypeId()

Description copied from interface: IOServiceProvider

Get a unique id for this file type.

Returns:

registered id of the file type

See Also:

"https://www.unidata.ucar.edu/software/netcdf-java/formats/FileTypes.html"

getFileTypeDescription

public java.lang.String getFileTypeDescription()

Description copied from interface: IOServiceProvider

Get a human-readable description for this file type.

Returns:

description of the file type

See Also:

"https://www.unidata.ucar.edu/software/netcdf-java/formats/FileTypes.html"

open

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

Open the file and read the header part

Specified by:

open in interface IOServiceProvider

Overrides:

open in class AbstractIOServiceProvider

Parameters:

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

file - add objects to this empty NetcdfFile

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

Throws:

java.io.IOException - if read error

readData

public Array readData(Variable v2,
                      Section section)
               throws java.io.IOException,
                      InvalidRangeException

Read the data for each variable passed in

Parameters:

v2 - a top-level Variable

section - the section of data to read. There must be a Range for each Dimension in the variable, in order. Note: no nulls allowed. IOSP may not modify.

Returns:

the requested data in a memory-resident Array

Throws:

java.io.IOException - if read error

InvalidRangeException - if invalid section

See Also:

Range

readOneScanData

public java.lang.Object readOneScanData(java.nio.ByteBuffer bos,
                                        ucar.nc2.iosp.nowrad.NOWRadheader.Vinfo vinfo,
                                        java.lang.String vName)

Read one scan radar data

Parameters:

bos - Data buffer

vinfo - variable info

Returns:

the data object of scan data

bytesToInt

public static int bytesToInt(short a,
                             short b,
                             boolean swapBytes)

bytesToInt

public static int bytesToInt(byte a,
                             byte b,
                             boolean swapBytes)

readOneRowData

public byte[] readOneRowData(byte[] ddata,
                             int rLen,
                             int xt)

Read data from encoded values and run len into regular data array

Parameters:

ddata - is encoded data values

Returns:

the data array of row data

reacquire

public void reacquire()
               throws java.io.IOException

Description copied from interface: IOServiceProvider

Reacquire any resources like file handles Used when reactivating in cache.

Specified by:

reacquire in interface IOServiceProvider

Overrides:

reacquire in class AbstractIOServiceProvider

Throws:

java.io.IOException