org.semanticdesktop.aperture.subcrawler.bzip2
Class BZip2SubCrawler

java.lang.Object
  org.semanticdesktop.aperture.subcrawler.base.AbstractSubCrawler
      org.semanticdesktop.aperture.subcrawler.base.AbstractCompressorSubCrawler
          org.semanticdesktop.aperture.subcrawler.bzip2.BZip2SubCrawler

All Implemented Interfaces:

SubCrawler

public class BZip2SubCrawler
extends AbstractCompressorSubCrawler

A SubCrawler Implementation working with BZIP2 archives.

Constructor Summary

BZip2SubCrawler()

Method Summary

protected URI	getContentUri(URI archiveUri) Returns the uri of the content file, this method is supposed to strip the compressor-specific suffix (like .gz or .bz2).
protected InputStream	getUncompressedStream(InputStream stream) Returns a stream that uncompresses the data
String	getUriPrefix() Returns the prefix used when generating uris.

Methods inherited from class org.semanticdesktop.aperture.subcrawler.base.AbstractCompressorSubCrawler

stopSubCrawler, subCrawl

Methods inherited from class org.semanticdesktop.aperture.subcrawler.base.AbstractSubCrawler

createChildUri, getDataObject

Methods inherited from class java.lang.Object

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

Constructor Detail

BZip2SubCrawler

public BZip2SubCrawler()

Method Detail

getUncompressedStream

protected InputStream getUncompressedStream(InputStream stream)
                                     throws IOException

Description copied from class: AbstractCompressorSubCrawler

Returns a stream that uncompresses the data

Specified by:

getUncompressedStream in class AbstractCompressorSubCrawler

Parameters:

stream - InputStream with the compressed data

Returns:

stream with the uncompressed data

Throws:

IOException

getUriPrefix

public String getUriPrefix()

Description copied from class: AbstractSubCrawler

Returns the prefix used when generating uris. See the documentation for SubCrawler class for more details.

Specified by:

getUriPrefix in class AbstractSubCrawler

Returns:

the prefix used when generating uris.

getContentUri

protected URI getContentUri(URI archiveUri)

Description copied from class: AbstractCompressorSubCrawler

Returns the uri of the content file, this method is supposed to strip the compressor-specific suffix (like .gz or .bz2). It is meant to be overridden by the concrete compressor subcrawler subclasses.

Overrides:

getContentUri in class AbstractCompressorSubCrawler

Parameters:

archiveUri - the uri of the archive

Returns:

the uri of the compressed file content