com.groupdocs.viewer.utils

Class MemoryCleaner

java.lang.Object

com.groupdocs.viewer.utils.MemoryCleaner

public final class MemoryCleaner
extends Object

Cleans different resources to free memory.

This class provides methods to clear heap memory, delete temp files, and clear font registry information. It also includes a method to safely clear thread-local instances for the current thread.

Example usage:

 // Clean heap memory, keeping font settings
 MemoryCleaner.clearKeepingFontSettings();

 // Clean heap memory and delete temp files
 MemoryCleaner.clear();

 // Clean heap memory from static PDF instances
 MemoryCleaner.clearStaticInstances();

 // Delete all temp files created by PDF in the system temp directory
 MemoryCleaner.clearAllTempFiles();

 // Clear font registry information from heap memory
 MemoryCleaner.clearFontRegistry();

 // Safely clear thread-local instances for the current thread
 MemoryCleaner.clearCurrentThreadLocals();
 

Constructor Summary

Constructors

Constructor and Description
MemoryCleaner()

Method Summary

Modifier and Type	Method and Description
static void	clear() Clears heap memory from static PDF instances (static and threadLocal) and deletes all temp files.
static void	clearAllTempFiles() Clears temp files created by GroupDocs.Viewer in the system temp directory.
static void	clearCurrentThreadLocals() Safely clears heap memory from thread-local instances for the current thread.
static void	clearFontRegistry() Clears font registry information from heap memory.
static void	clearKeepingFontSettings() Clears heap memory from static PDF instances (static and threadLocal) and deletes all temp files.
static void	clearStaticInstances() Clears heap memory from static PDF instances.

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryCleaner

public MemoryCleaner()

Method Detail

clear

public static void clear()

Clears heap memory from static PDF instances (static and threadLocal) and deletes all temp files.

clearAllTempFiles

public static void clearAllTempFiles()

Clears temp files created by GroupDocs.Viewer in the system temp directory.

clearCurrentThreadLocals

public static void clearCurrentThreadLocals()

Safely clears heap memory from thread-local instances for the current thread.

clearFontRegistry

public static void clearFontRegistry()

Clears font registry information from heap memory.

clearKeepingFontSettings

public static void clearKeepingFontSettings()

Clears heap memory from static PDF instances (static and threadLocal) and deletes all temp files. This method does not affect font settings.

clearStaticInstances

public static void clearStaticInstances()

Clears heap memory from static PDF instances.