org.apache.solr.core
Class HdfsDirectoryFactory

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

All Implemented Interfaces:

Closeable, NamedListInitializedPlugin

public class HdfsDirectoryFactory
extends CachingDirectoryFactory

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

static String	BLOCKCACHE_DIRECT_MEMORY_ALLOCATION
static String	BLOCKCACHE_ENABLED
static String	BLOCKCACHE_READ_ENABLED
static String	BLOCKCACHE_SLAB_COUNT
static String	BLOCKCACHE_WRITE_ENABLED
static String	CONFIG_DIRECTORY
static String	HDFS_HOME
static String	KERBEROS_ENABLED
static String	KERBEROS_KEYTAB
static String	KERBEROS_PRINCIPAL
static org.slf4j.Logger	LOG
static Metrics	metrics
static String	NRTCACHINGDIRECTORY_ENABLE
static String	NRTCACHINGDIRECTORY_MAXCACHEMB
static String	NRTCACHINGDIRECTORY_MAXMERGESIZEMB
static String	NUMBEROFBLOCKSPERBANK

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

HdfsDirectoryFactory()

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.
String	getConfDir()
String	getDataHome(CoreDescriptor cd)
void	init(NamedList args)
boolean	isAbsolute(String path)
boolean	isPersistent()
protected void	removeDirectory(CachingDirectoryFactory.CacheValue cacheValue)
boolean	searchersReserveCommitPoints() If your implementation can count on delete-on-last-close semantics or throws an exception when trying to remove a file in use, return false (eg NFS).

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

addCloseListener, close, doneWithDirectory, get, getLivePaths, incRef, normalize, release, remove, remove, remove, remove, stripTrailingSlash

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

empty, move, sizeOf, sizeOfDirectory

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static org.slf4j.Logger LOG

BLOCKCACHE_SLAB_COUNT

public static final String BLOCKCACHE_SLAB_COUNT

See Also:

Constant Field Values

BLOCKCACHE_DIRECT_MEMORY_ALLOCATION

public static final String BLOCKCACHE_DIRECT_MEMORY_ALLOCATION

See Also:

Constant Field Values

BLOCKCACHE_ENABLED

public static final String BLOCKCACHE_ENABLED

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Constant Field Values

BLOCKCACHE_READ_ENABLED

public static final String BLOCKCACHE_READ_ENABLED

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Constant Field Values

BLOCKCACHE_WRITE_ENABLED

public static final String BLOCKCACHE_WRITE_ENABLED

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Constant Field Values

NRTCACHINGDIRECTORY_ENABLE

public static final String NRTCACHINGDIRECTORY_ENABLE

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Constant Field Values

NRTCACHINGDIRECTORY_MAXMERGESIZEMB

public static final String NRTCACHINGDIRECTORY_MAXMERGESIZEMB

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Constant Field Values

NRTCACHINGDIRECTORY_MAXCACHEMB

public static final String NRTCACHINGDIRECTORY_MAXCACHEMB

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Constant Field Values

NUMBEROFBLOCKSPERBANK

public static final String NUMBEROFBLOCKSPERBANK

See Also:

Constant Field Values

KERBEROS_ENABLED

public static final String KERBEROS_ENABLED

See Also:

Constant Field Values

KERBEROS_KEYTAB

public static final String KERBEROS_KEYTAB

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Constant Field Values

KERBEROS_PRINCIPAL

public static final String KERBEROS_PRINCIPAL

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Constant Field Values

HDFS_HOME

public static final String HDFS_HOME

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Constant Field Values

CONFIG_DIRECTORY

public static final String CONFIG_DIRECTORY

See Also:

Constant Field Values

metrics

public static Metrics metrics

Constructor Detail

HdfsDirectoryFactory

public HdfsDirectoryFactory()

Method Detail

init

public void init(NamedList args)

Specified by:

init in interface NamedListInitializedPlugin

Overrides:

init in class CachingDirectoryFactory

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.

exists

public boolean exists(String path)

Description copied from class: DirectoryFactory

Returns true if a Directory exists for a given path.

Overrides:

exists in class CachingDirectoryFactory

removeDirectory

protected void removeDirectory(CachingDirectoryFactory.CacheValue cacheValue)
                        throws IOException

Overrides:

removeDirectory in class CachingDirectoryFactory

Throws:

IOException

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

isPersistent

public boolean isPersistent()

Specified by:

isPersistent in class DirectoryFactory

Returns:

true if data is kept after close.

searchersReserveCommitPoints

public boolean searchersReserveCommitPoints()

Description copied from class: DirectoryFactory

If your implementation can count on delete-on-last-close semantics or throws an exception when trying to remove a file in use, return false (eg NFS). Otherwise, return true. Defaults to returning false.

Overrides:

searchersReserveCommitPoints in class DirectoryFactory

Returns:

true if factory impl requires that Searcher's explicitly reserve commit points.

getDataHome

public String getDataHome(CoreDescriptor cd)
                   throws IOException

Overrides:

getDataHome in class DirectoryFactory

Throws:

IOException

getConfDir

public String getConfDir()