Class StringInterner

java.lang.Object

com.biglybt.core.util.StringInterner

public class StringInterner
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	StringInterner.DirKey
static class	StringInterner.FileKey
static interface	StringInterner.StringSupplier	NOTE this should always return the same string, it is not intended to support a mutable result...
static class	StringInterner.StringSupplierBasic
static class	StringInterner.StringSupplierGenerated	As above, must always return the same string.
private static class	StringInterner.WeakEntry
private static class	StringInterner.WeakStringEntry
private static class	StringInterner.WeakURLEntry
private static class	StringInterner.WeakWeightedEntry

Field Summary

Fields

Modifier and Type	Field	Description
private static final String[]	COMMON_KEYS
static boolean	DISABLE_INTERNING	Can't be final as set true for a few specific apps
private static final Map<WeakReference<StringInterner.FileKey>, String>	file_key_map
private static final ReferenceQueue<StringInterner.FileKey>	file_key_ref_queue
private static final int	IMMEDIATE_CLEANUP_GOAL
private static final int	IMMEDIATE_CLEANUP_TRIGGER
private static final LightHashSet	managedInterningSet
private static final ReferenceQueue	managedRefQueue
(package private) static final ReadWriteLock	managedSetLock
private static final Comparator	savingsComp
private static final int	SCHEDULED_AGING_THRESHOLD
private static final int	SCHEDULED_CLEANUP_GOAL
private static final int	SCHEDULED_CLEANUP_INTERVAL
private static final int	SCHEDULED_CLEANUP_TRIGGER
private static final boolean	TRACE_CLEANUP
private static final boolean	TRACE_MULTIHITS
private static final boolean	TRACK_FILE_KEYS

Constructor Summary

Constructors

Constructor	Description
StringInterner()

Method Summary

Modifier and Type	Method	Description
static String	intern(String toIntern)
static URL	internURL(URL toIntern)	This is based on File.hashCode() and File.equals(), which can return different values for different representations of the same paths.
private static void	sanitize(boolean scheduled)

Methods inherited from class Object

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

Field Details

DISABLE_INTERNING

public static boolean DISABLE_INTERNING

Can't be final as set true for a few specific apps

SCHEDULED_CLEANUP_INTERVAL

private static final int SCHEDULED_CLEANUP_INTERVAL

See Also:

• Constant Field Values

TRACE_CLEANUP

private static final boolean TRACE_CLEANUP

See Also:

• Constant Field Values

TRACE_MULTIHITS

private static final boolean TRACE_MULTIHITS

See Also:

• Constant Field Values

IMMEDIATE_CLEANUP_TRIGGER

private static final int IMMEDIATE_CLEANUP_TRIGGER

See Also:

• Constant Field Values

IMMEDIATE_CLEANUP_GOAL

private static final int IMMEDIATE_CLEANUP_GOAL

See Also:

• Constant Field Values

SCHEDULED_CLEANUP_TRIGGER

private static final int SCHEDULED_CLEANUP_TRIGGER

See Also:

• Constant Field Values

SCHEDULED_CLEANUP_GOAL

private static final int SCHEDULED_CLEANUP_GOAL

See Also:

• Constant Field Values

SCHEDULED_AGING_THRESHOLD

private static final int SCHEDULED_AGING_THRESHOLD

See Also:

• Constant Field Values

managedInterningSet

private static final LightHashSet managedInterningSet

managedSetLock

static final ReadWriteLock managedSetLock

managedRefQueue

private static final ReferenceQueue managedRefQueue

COMMON_KEYS

private static final String[] COMMON_KEYS

savingsComp

private static final Comparator savingsComp

TRACK_FILE_KEYS

private static final boolean TRACK_FILE_KEYS

file_key_ref_queue

private static final ReferenceQueue<StringInterner.FileKey> file_key_ref_queue

file_key_map

private static final Map<WeakReference<StringInterner.FileKey>, String> file_key_map

Constructor Details

StringInterner

public StringInterner()

Method Details

intern

public static String intern(String toIntern)

internURL

public static URL internURL(URL toIntern)

This is based on File.hashCode() and File.equals(), which can return different values for different representations of the same paths. Thus internFile should be used with canonized Files exclusively

sanitize

private static void sanitize(boolean scheduled)