org.apache.lucene.index
Class LuceneUtils

java.lang.Object
  org.apache.lucene.index.LuceneUtils

public abstract class LuceneUtils
extends Object

Author:

kimchy

Constructor Summary

LuceneUtils()

Method Summary

static void	compoundDirectory(Directory directory, long writeLockTimeout) Compunds the directory.
static void	copy(Directory src, boolean srcIsCompound, Directory dest, boolean destIsCompound, byte[] buffer) Copies one directory contents to the other.
static void	copy(Directory src, Directory dest, String name, byte[] buffer) Copies over the contents of the name entry from the src directory into the dest directory.
static void	copy(IndexInput indexInput, IndexOutput indexOutput, String name, byte[] buffer) Copies the contents of the IndexInput into the IndexOutput.
static boolean	isCompound(Directory directory) Returns true if all the segments of the directory are in compound format.
static boolean	isUnCompound(Directory directory) Returns true if all the segments of the directory are in un-compound format.
static void	unCompoundDirectory(Directory directory, long writeLockTimeout) Compunds the directory.

Methods inherited from class java.lang.Object

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

Constructor Detail

LuceneUtils

public LuceneUtils()

Method Detail

copy

public static void copy(Directory src,
                        boolean srcIsCompound,
                        Directory dest,
                        boolean destIsCompound,
                        byte[] buffer)
                 throws IOException

Copies one directory contents to the other. Will automatically compound or uncompound the contents of the src directory into the dest directory.

Parameters:

src - The src directory to copy from

srcIsCompound - If the src is in compound format or not

dest - The dest directory to copy to

destIsCompound - If the dest will be in compound format or not

buffer - The buffer to use when copying over

Throws:

IOException

copy

public static void copy(Directory src,
                        Directory dest,
                        String name,
                        byte[] buffer)
                 throws IOException

Copies over the contents of the name entry from the src directory into the dest directory.

Parameters:

src - The src directory to copy from

dest - The dest directory to copy to

name - the name of the entry

buffer - The buffer to use

Throws:

IOException

copy

public static void copy(IndexInput indexInput,
                        IndexOutput indexOutput,
                        String name,
                        byte[] buffer)
                 throws IOException

Copies the contents of the IndexInput into the IndexOutput.

Parameters:

indexInput - The content to copy from

indexOutput - The output to write to

name - The name of the file

buffer - The buffer to use

Throws:

IOException

isCompound

public static boolean isCompound(Directory directory)
                          throws IOException

Returns true if all the segments of the directory are in compound format. Will return true if the index does not exists or there are no segments.

Throws:

IOException

isUnCompound

public static boolean isUnCompound(Directory directory)
                            throws IOException

Returns true if all the segments of the directory are in un-compound format. Will return true if the index does not exists or there are no segments.

Throws:

IOException

compoundDirectory

public static void compoundDirectory(Directory directory,
                                     long writeLockTimeout)
                              throws IOException

Compunds the directory. Only works on segments that have no ".cfs" file that already exists.

Throws:

IOException

unCompoundDirectory

public static void unCompoundDirectory(Directory directory,
                                       long writeLockTimeout)
                                throws IOException

Compunds the directory. Only works on segments that have ".cfs" file that already exists.

Throws:

IOException