ucar.nc2.iosp
Class AbstractIOServiceProvider

java.lang.Object
  ucar.nc2.iosp.AbstractIOServiceProvider

All Implemented Interfaces:

IOServiceProvider

Direct Known Subclasses:

AddeServiceProvider, BufrIosp, Cinrad2IOServiceProvider, DMSPiosp, Doradeiosp, Giniiosp, GribServiceProvider, GridServiceProvider, GtopoIosp, H4iosp, H5iosp, N3iosp, Nexrad2IOServiceProvider, Nidsiosp, NmcObsLegacy

public abstract class AbstractIOServiceProvider
extends java.lang.Object
implements IOServiceProvider

Constructor Summary

AbstractIOServiceProvider()

Method Summary

static java.lang.String	createValidNetcdfObjectName(java.lang.String name)
java.lang.String	getDetailInfo() Show debug / underlying implementation details
Array	readSection(ParsedSectionSpec cer) Allows reading sections of nested variables
long	readToByteChannel(Variable v2, Section section, java.nio.channels.WritableByteChannel channel) Read data from a top level Variable and send data to a WritableByteChannel.
java.lang.Object	sendIospMessage(java.lang.Object message) 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

Methods inherited from interface ucar.nc2.iosp.IOServiceProvider

close, isValidFile, open, readData

Constructor Detail

AbstractIOServiceProvider

public AbstractIOServiceProvider()

Method Detail

createValidNetcdfObjectName

public static java.lang.String createValidNetcdfObjectName(java.lang.String name)

readToByteChannel

public long readToByteChannel(Variable v2,
                              Section section,
                              java.nio.channels.WritableByteChannel channel)
                       throws java.io.IOException,
                              InvalidRangeException

Description copied from interface: IOServiceProvider

Read data from a top level Variable and send data to a WritableByteChannel. Must be in big-endian order.

Specified by:

readToByteChannel in interface IOServiceProvider

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.

channel - write data to this WritableByteChannel

Returns:

the number of bytes written to the channel

Throws:

java.io.IOException - if read error

InvalidRangeException - if invalid section

readSection

public Array readSection(ParsedSectionSpec cer)
                  throws java.io.IOException,
                         InvalidRangeException

Description copied from interface: IOServiceProvider

Allows reading sections of nested variables

Specified by:

readSection in interface IOServiceProvider

Returns:

requested data array

Throws:

java.io.IOException

InvalidRangeException

sendIospMessage

public java.lang.Object sendIospMessage(java.lang.Object message)

Description copied from interface: IOServiceProvider

A way to communicate arbitrary information to an iosp.

Specified by:

sendIospMessage in interface IOServiceProvider

Parameters:

message - opaque message.

Returns:

opaque return, may be null.

syncExtend

public boolean syncExtend()
                   throws java.io.IOException

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 extended.

Throws:

java.io.IOException - if read error

sync

public boolean sync()
             throws java.io.IOException

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.

Throws:

java.io.IOException - if read error

toStringDebug

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

Description copied from interface: IOServiceProvider

Debug info for this object.

Specified by:

toStringDebug in interface IOServiceProvider

Parameters:

o - which object

Returns:

debug info for this object

getDetailInfo

public java.lang.String getDetailInfo()

Description copied from interface: IOServiceProvider

Show debug / underlying implementation details

Specified by:

getDetailInfo in interface IOServiceProvider

Returns:

debug info