cytoscape.util
Class ZipUtil

java.lang.Object
  cytoscape.util.ZipUtil

public class ZipUtil

extends Object

Compression-related methods mainly for Session Writer.
The created zip files can be decompressed by any zip utilities.

Since:

Cytoscape 2.3

Version:

0.9

Author:

kono

See Also:

cytoscape.data.writers.CytoscapeSessionWriter

Field Summary

static int

DEF_COMPRESSION_LEVEL

Constructor Summary

ZipUtil(String zipFile, String[] fileList, String sessionDir)
Constructor.

Method Summary

void	compressFast(int compressionLevel, boolean cleanFlag) Faster version of compression method.
static InputStream	readFile(String zipName, String fileNameRegEx) Reads a file contained within a zip file and returns an InputStream.

Methods inherited from class java.lang.Object

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

Field Detail

DEF_COMPRESSION_LEVEL

public static final int DEF_COMPRESSION_LEVEL

See Also:

Constant Field Values

Constructor Detail

ZipUtil

public ZipUtil(String zipFile,
               String[] fileList,
               String sessionDir)

Constructor.

Parameters:

zipFile - Output zip file name.

fileList - List of file names to be compressed.

sessionDir - Root dir created in the zip archive.

Method Detail

compressFast

public void compressFast(int compressionLevel,
                         boolean cleanFlag)
                  throws IOException

Faster version of compression method.

Parameters:

compressionLevel - Level of compression. Range = 0-9. 0 is no-compression, and 9 is most space-efficeint. However, 9 is slow.

cleanFlag - If true, remove all imput files.

Throws:

IOException

readFile

public static InputStream readFile(String zipName,
                                   String fileNameRegEx)
                            throws IOException

Reads a file contained within a zip file and returns an InputStream.

Parameters:

zipName - The name of the zip file to read.

fileNameRegEx - A regular expression that identifies the file to be read. In general this should just be the file name you're looking for. If more than one file matches the regular expression, only the first will be returned. If you're looking for a specific file remeber to build your regular expression correctly. For example, if you're looking for the file 'vizmap.props', make your regular expression '.*vizmap.props' to accomodate any clutter from the zip file.

Returns:

An InputStream of the zip entry identified by the regular expression or null if nothing matches.

Throws:

IOException