org.apache.solr.core
Class StandardDirectoryFactory

java.lang.Object
  org.apache.solr.core.DirectoryFactory
      org.apache.solr.core.CachingDirectoryFactory
          org.apache.solr.core.StandardDirectoryFactory

All Implemented Interfaces:

Closeable, NamedListInitializedPlugin

Direct Known Subclasses:

MMapDirectoryFactory, NIOFSDirectoryFactory, NRTCachingDirectoryFactory, SimpleFSDirectoryFactory

public class StandardDirectoryFactory
extends CachingDirectoryFactory

Directory provider which mimics original Solr FSDirectory based behavior. File based DirectoryFactory implementations generally extend this class.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.solr.core.CachingDirectoryFactory

CachingDirectoryFactory.CacheValue, CachingDirectoryFactory.CloseListener

Nested classes/interfaces inherited from class org.apache.solr.core.DirectoryFactory

DirectoryFactory.DirContext

Field Summary

Fields inherited from class org.apache.solr.core.CachingDirectoryFactory

byDirectoryCache, byPathCache, closeListeners, removeEntries

Fields inherited from class org.apache.solr.core.DirectoryFactory

IOCONTEXT_NO_CACHE

Constructor Summary

StandardDirectoryFactory()

Method Summary

protected Directory	create(String path, DirectoryFactory.DirContext dirContext) Creates a new Directory for a given path.
boolean	exists(String path) Returns true if a Directory exists for a given path.
boolean	isAbsolute(String path)
boolean	isPersistent()
void	move(Directory fromDir, Directory toDir, String fileName, IOContext ioContext) Override for more efficient moves.
String	normalize(String path) Normalize a given path.
protected void	removeDirectory(CachingDirectoryFactory.CacheValue cacheValue)

Methods inherited from class org.apache.solr.core.CachingDirectoryFactory

addCloseListener, close, doneWithDirectory, get, get, getPaths, incRef, init, release, remove, remove, remove, remove

Methods inherited from class org.apache.solr.core.DirectoryFactory

empty, sizeOf, sizeOfDirectory

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardDirectoryFactory

public StandardDirectoryFactory()

Method Detail

create

protected Directory create(String path,
                           DirectoryFactory.DirContext dirContext)
                    throws IOException

Description copied from class: DirectoryFactory

Creates a new Directory for a given path.

Specified by:

create in class CachingDirectoryFactory

Throws:

IOException - If there is a low-level I/O error.

normalize

public String normalize(String path)
                 throws IOException

Description copied from class: DirectoryFactory

Normalize a given path.

Overrides:

normalize in class CachingDirectoryFactory

Parameters:

path - to normalize

Returns:

normalized path

Throws:

IOException - on io error

exists

public boolean exists(String path)
               throws IOException

Description copied from class: DirectoryFactory

Returns true if a Directory exists for a given path.

Overrides:

exists in class CachingDirectoryFactory

Throws:

IOException - If there is a low-level I/O error.

isPersistent

public boolean isPersistent()

Specified by:

isPersistent in class DirectoryFactory

Returns:

true if data is kept after close.

isAbsolute

public boolean isAbsolute(String path)

Overrides:

isAbsolute in class DirectoryFactory

Parameters:

path - the path to check

Returns:

true if absolute, as in not relative

removeDirectory

protected void removeDirectory(CachingDirectoryFactory.CacheValue cacheValue)
                        throws IOException

Overrides:

removeDirectory in class CachingDirectoryFactory

Throws:

IOException

move

public void move(Directory fromDir,
                 Directory toDir,
                 String fileName,
                 IOContext ioContext)
          throws IOException

Override for more efficient moves. Intended for use with replication - use carefully - some Directory wrappers will cache files for example. This implementation works with two wrappers: NRTCachingDirectory and RateLimitedDirectoryWrapper. You should first Directory.sync(java.util.Collection) any file that will be moved or avoid cached files through settings.

Overrides:

move in class DirectoryFactory

Throws:

IOException - If there is a low-level I/O error.