ucar.unidata.io

Class RemoteRandomAccessFile

java.lang.Object

ucar.unidata.io.RandomAccessFile

ucar.unidata.io.RemoteRandomAccessFile

All Implemented Interfaces:

Closeable, DataInput, DataOutput, AutoCloseable, ucar.nc2.util.cache.FileCacheable, ReadableRemoteFile

public abstract class RemoteRandomAccessFile
extends RandomAccessFile
implements ReadableRemoteFile

An abstract superclass for remote RandomAccessFile

Field Summary

Fields inherited from class ucar.unidata.io.RandomAccessFile

BIG_ENDIAN, LITTLE_ENDIAN

Method Summary

Modifier and Type	Method and Description
void	close() Close the file, and release any associated system resources.
long	readToByteChannel(WritableByteChannel dest, long offset, long nbytes) Read nbytes bytes, at the specified file offset, send to a WritableByteChannel.

Methods inherited from class ucar.unidata.io.RandomAccessFile

acquire, acquire, eject, enableDefaultGlobalFileCache, flush, getBufferSize, getFilePointer, getGlobalFileCache, getLastModified, getLocation, getRandomAccessFile, isAtEndOfFile, isDirectory, length, order, order, read, read, read, readBoolean, readByte, readBytes, readBytes, readChar, readDouble, readDouble, readFloat, readFloat, readFully, readFully, readInt, readInt, readIntUnbuffered, readLine, readLine, readLong, readLong, readShort, readShort, readString, readString, readStringMax, readStringMax, readUnsignedByte, readUnsignedShort, readUTF, searchForward, seek, setBufferSize, setExtendMode, setGlobalFileCache, setMinLength, shutdown, skipBytes, skipBytes, toString, unread, write, write, write, writeBoolean, writeBoolean, writeByte, writeBytes, writeBytes, writeBytes, writeChar, writeChar, writeChar, writeChar, writeChar, writeChar, writeChars, writeChars, writeChars, writeDouble, writeDouble, writeDouble, writeDouble, writeDouble, writeDouble, writeFloat, writeFloat, writeFloat, writeFloat, writeFloat, writeFloat, writeInt, writeInt, writeInt, writeInt, writeInt, writeInt, writeLong, writeLong, writeLong, writeLong, writeLong, writeLong, writeShort, writeShort, writeShort, writeShort, writeShort, writeShort, writeUTF

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface ucar.unidata.io.ReadableRemoteFile

closeRemote, readRemote

Methods inherited from interface ucar.nc2.util.cache.FileCacheable

reacquire, release, setFileCache

Method Detail

close

public void close()
           throws IOException

Description copied from class: RandomAccessFile

Close the file, and release any associated system resources.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface ucar.nc2.util.cache.FileCacheable

Overrides:

close in class RandomAccessFile

Throws:

IOException - if an I/O error occurrs.

readToByteChannel

public long readToByteChannel(WritableByteChannel dest,
                              long offset,
                              long nbytes)
                       throws IOException

Description copied from class: RandomAccessFile

Read nbytes bytes, at the specified file offset, send to a WritableByteChannel. This will block until all bytes are read. This uses the underlying file channel directly, bypassing all user buffers.

Overrides:

readToByteChannel in class RandomAccessFile

Parameters:

dest - write to this WritableByteChannel.

offset - the offset in the file where copying will start.

nbytes - the number of bytes to read.

Returns:

the actual number of bytes read and transfered

Throws:

IOException - if an I/O error occurs.