ucar.nc2.iosp.bufr

Class MessageScanner

java.lang.Object

ucar.nc2.iosp.bufr.MessageScanner

public class MessageScanner
extends Object

Sequentially scans a BUFR file, extracts the messages.

Since:

May 9, 2008

Author:

caron

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAX_MESSAGE_SIZE

Constructor Summary

Constructors

Constructor and Description
MessageScanner(RandomAccessFile raf)
MessageScanner(RandomAccessFile raf, long startPos, boolean useEmbeddedTables)

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	getMessageBytes(Message m)
byte[]	getMessageBytesFromLast(Message m)
TableLookup	getTableLookup()
int	getTotalMessages()
int	getTotalObs()
boolean	hasNext()
static boolean	isValidFile(RandomAccessFile raf) is this a valid BUFR file.
Message	next()
long	writeCurrentMessage(WritableByteChannel out)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_MESSAGE_SIZE

public static final int MAX_MESSAGE_SIZE

See Also:

Constant Field Values

Constructor Detail

MessageScanner

public MessageScanner(RandomAccessFile raf)
               throws IOException

Throws:

IOException

MessageScanner

public MessageScanner(RandomAccessFile raf,
              long startPos,
              boolean useEmbeddedTables)
               throws IOException

Throws:

IOException

Method Detail

isValidFile

public static boolean isValidFile(RandomAccessFile raf)
                           throws IOException

is this a valid BUFR file.

Parameters:

raf - check this file

Returns:

true if its a BUFR file

Throws:

IOException - on read error

hasNext

public boolean hasNext()
                throws IOException

Throws:

IOException

next

public Message next()
             throws IOException

Throws:

IOException

getTableLookup

public TableLookup getTableLookup()
                           throws IOException

Throws:

IOException

getMessageBytesFromLast

public byte[] getMessageBytesFromLast(Message m)
                               throws IOException

Throws:

IOException

getMessageBytes

public byte[] getMessageBytes(Message m)
                       throws IOException

Throws:

IOException

getTotalObs

public int getTotalObs()

getTotalMessages

public int getTotalMessages()

writeCurrentMessage

public long writeCurrentMessage(WritableByteChannel out)
                         throws IOException

Throws:

IOException