org.erowid.sperosearch.splitindex
Class SplitIndexDirectory

java.lang.Object
  org.apache.lucene.store.Directory
      org.erowid.sperosearch.splitindex.SplitIndexDirectory

public class SplitIndexDirectory

extends Directory

A read-only Directory for use with Lucene. It uses standard HTTP to retrieve the files, which are split into segments and then compressed. In addition, there is a directory file that lists the files, their sizes, the segment size, and other information.

Version:

: $Header: /cvsroot/sperowider/SPEROWIDER_MODULE/javasource/org/erowid/sperosearch/splitindex/SplitIndexDirectory.java,v 1.1 2005/06/02 06:07:58 gurustu Exp $

Author:

: $Author: gurustu $

Method Summary

void	close() Closes this directory and cleans up resources.
OutputStream	createFile(String fileName) Does nothing, because this is a read only directory.
void	deleteFile(String arg0) Does nothing, because this is a read only directory.
boolean	fileExists(String fileName) Returns true if the requested file exists in this directory.
long	fileLength(String fileName) Returns the length of the named file.
long	fileModified(String fileName) Always returns 0, because this is a read only directory.
static SplitIndexDirectory	getDirectory(URL url) A factory for creating/returning an HttpDirectory for the passed in URL.
String[]	list() Http can't really support this.
Lock	makeLock(String arg0) Returns a dummy lock object.
InputStream	openFile(String fileName) Returns a InputStream that pipes in the data for the requested file.
void	renameFile(String arg0, String arg1) Does nothing, because this is a read only directory.
void	touchFile(String arg0) Does nothing, because this is a read only directory.

Methods inherited from class java.lang.Object

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

Method Detail

getDirectory

public static SplitIndexDirectory getDirectory(URL url)
                                        throws IOException

A factory for creating/returning an HttpDirectory for the passed in URL. If the passed in URL had never been requested before, it creates a new HttpDirectory. Otherwise it returns an earlier instantiated object.

Throws:

IOException

list

public String[] list()
              throws IOException

Http can't really support this. Hopefully it isn't important.

Throws:

IOException

fileExists

public boolean fileExists(String fileName)
                   throws IOException

Returns true if the requested file exists in this directory.

Throws:

IOException

fileModified

public long fileModified(String fileName)
                  throws IOException

Always returns 0, because this is a read only directory.

Throws:

IOException

touchFile

public void touchFile(String arg0)
               throws IOException

Does nothing, because this is a read only directory.

Throws:

IOException

deleteFile

public void deleteFile(String arg0)
                throws IOException

Does nothing, because this is a read only directory.

Throws:

IOException

renameFile

public void renameFile(String arg0,
                       String arg1)
                throws IOException

Does nothing, because this is a read only directory.

Throws:

IOException

fileLength

public long fileLength(String fileName)
                throws IOException

Returns the length of the named file.

Throws:

IOException

createFile

public OutputStream createFile(String fileName)
                        throws IOException

Does nothing, because this is a read only directory.

Throws:

IOException

openFile

public InputStream openFile(String fileName)
                     throws IOException

Returns a InputStream that pipes in the data for the requested file.

Throws:

IOException

makeLock

public Lock makeLock(String arg0)

Returns a dummy lock object.

close

public void close()
           throws IOException

Closes this directory and cleans up resources.

Throws:

IOException