de.lmu.ifi.dbs.elki.result.textwriter

Class MultipleFilesOutput

java.lang.Object

de.lmu.ifi.dbs.elki.result.textwriter.MultipleFilesOutput

All Implemented Interfaces:

StreamFactory

public class MultipleFilesOutput
extends Object
implements StreamFactory

Manage output to multiple files.

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
private File	basename Base file name.
private static String	EXTENSION File name extension.
private static String	GZIP_EXTENSION GZip extra file extension
private static Logging	LOG Logger for debugging.
private boolean	usegzip Control gzip compression of output.

Constructor Summary

Constructors

Constructor and Description
MultipleFilesOutput(File base) Constructor
MultipleFilesOutput(File base, boolean gzip) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
void	closeStream(PrintStream stream) Close the given output stream (Note: when writing to a single stream output, it will actually not be closed!)
protected boolean	isGzipCompression() Get GZIP compression flag.
private PrintStream	newStream(String name) Open a new stream of the given name
PrintStream	openStream(String filename) Retrieve the output stream for the given file name.
protected void	setGzipCompression(boolean usegzip) Set GZIP compression flag.

Methods inherited from class java.lang.Object

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

Field Detail

EXTENSION

private static final String EXTENSION

File name extension.

See Also:

Constant Field Values

GZIP_EXTENSION

private static final String GZIP_EXTENSION

GZip extra file extension

See Also:

Constant Field Values

basename

private File basename

Base file name.

usegzip

private boolean usegzip

Control gzip compression of output.

LOG

private static final Logging LOG

Logger for debugging.

Constructor Detail

MultipleFilesOutput

public MultipleFilesOutput(File base)

Constructor

Parameters:

base - Base file name (folder name)

MultipleFilesOutput

public MultipleFilesOutput(File base,
                   boolean gzip)

Constructor

Parameters:

base - Base file name (folder name)

gzip - Use gzip compression.

Method Detail

newStream

private PrintStream newStream(String name)
                       throws IOException

Open a new stream of the given name

Parameters:

name - file name (which will be appended to the base name)

Returns:

stream object for the given name

Throws:

IOException

openStream

public PrintStream openStream(String filename)
                       throws IOException

Retrieve the output stream for the given file name.

Specified by:

openStream in interface StreamFactory

Parameters:

filename - Output label.

Returns:

stream object for the given label

Throws:

IOException - on IO error

closeStream

public void closeStream(PrintStream stream)

Description copied from interface: StreamFactory

Close the given output stream (Note: when writing to a single stream output, it will actually not be closed!)

Specified by:

closeStream in interface StreamFactory

Parameters:

stream - Stream to close

isGzipCompression

protected boolean isGzipCompression()

Get GZIP compression flag.

Returns:

if GZIP compression is enabled

setGzipCompression

protected void setGzipCompression(boolean usegzip)

Set GZIP compression flag.

Parameters:

usegzip - use GZIP compression