iicm.vrml.pw
Class DecompressionStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          iicm.vrml.pw.DecompressionStream

All Implemented Interfaces:

java.io.Closeable

public class DecompressionStream
extends java.io.FilterInputStream

Field Summary

static int	COMPRESSION_MAGIC magic number of compressed files
private java.lang.Process	gunzip_

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

DecompressionStream(java.lang.String filename)
check whether the InputStream contains compressed data.

Method Summary

void	close() on close also destroy subprocess in case it is still running
(package private) static java.lang.String	cmdToString(java.lang.String s)
(package private) static java.lang.String	cmdToString(java.lang.String[] arr)

Methods inherited from class java.io.FilterInputStream

available, mark, markSupported, read, read, read, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

COMPRESSION_MAGIC

public static final int COMPRESSION_MAGIC

magic number of compressed files

See Also:

Constant Field Values

gunzip_

private java.lang.Process gunzip_

Constructor Detail

DecompressionStream

public DecompressionStream(java.lang.String filename)
                    throws java.io.IOException

check whether the InputStream contains compressed data. In this case execute gunzip and return a stream of decompressed data. If executing gunzip fails (e.g. not allowed for applets) or the input data were not compressed, the original InputStream is returned unchanged. Only works for standalone applications.

Throws:

java.io.IOException

Method Detail

close

public void close()
           throws java.io.IOException

on close also destroy subprocess in case it is still running

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.FilterInputStream

Throws:

java.io.IOException

cmdToString

static final java.lang.String cmdToString(java.lang.String[] arr)

cmdToString

static final java.lang.String cmdToString(java.lang.String s)