Package loci.common

Class BZip2Handle

java.lang.Object

loci.common.StreamHandle

loci.common.BZip2Handle

All Implemented Interfaces:

java.io.DataInput, java.io.DataOutput, IRandomAccess

public class BZip2Handle
extends StreamHandle

StreamHandle implementation for reading from BZip2-compressed files or byte arrays. Instances of BZip2Handle are read-only.

Author:

Melissa Linkert melissa at glencoesoftware.com

See Also:

StreamHandle

Nested Class Summary

Nested classes/interfaces inherited from class loci.common.StreamHandle

StreamHandle.Settings

Field Summary

Fields inherited from class loci.common.StreamHandle

file, fp, length, mark, order, outStream, stream

Constructor Summary

Constructors

Constructor	Description
BZip2Handle(java.lang.String file)	Construct a new BZip2Handle corresponding to the given file.

Method Summary

Modifier and Type	Method	Description
static boolean	isBZip2File(java.lang.String file)	Returns true if the given filename is a BZip2 file.
protected void	resetStream()	Close and reopen the stream; the stream pointer and mark should be reset to 0.

Methods inherited from class loci.common.StreamHandle

close, exists, getFilePointer, getOrder, length, read, read, read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, seek, setOrder, skipBytes, skipBytes, write, write, write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

Methods inherited from class java.lang.Object

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

Constructor Details

BZip2Handle

public BZip2Handle(java.lang.String file) throws java.io.IOException

Construct a new BZip2Handle corresponding to the given file.

Parameters:

file - the path to a file on disk

Throws:

HandleException - if the given file is not a BZip2 file.

java.io.IOException

Method Details

isBZip2File

public static boolean isBZip2File(java.lang.String file) throws java.io.IOException

Returns true if the given filename is a BZip2 file.

Parameters:

file - the path to a file on disk

Returns:

true if file's extension is .bz2 and the first 2 bytes are the BZip2 magic marker

Throws:

java.io.IOException - if the file is not readable

resetStream

protected void resetStream() throws java.io.IOException

Description copied from class: StreamHandle

Close and reopen the stream; the stream pointer and mark should be reset to 0. This method is called if we need to seek backwards within the stream.

Specified by:

resetStream in class StreamHandle

Throws:

java.io.IOException - if the stream cannot be reset