Module openj9.dtfj

Package com.ibm.java.diagnostics.utils.plugins.impl

Class PluginManagerImpl

java.lang.Object

com.ibm.java.diagnostics.utils.plugins.impl.PluginManagerImpl

All Implemented Interfaces:

PluginManager

public class PluginManagerImpl
extends Object
implements PluginManager

Singleton manager for working with plugins.

Field Summary

Fields

Modifier and Type	Field	Description
protected Container	cache	the cache of scanned files for plugins
protected static Logger	logger
protected ArrayList<File>	pluginSearchPath	specify classloader paths by URI as this can be used by the File class and converted into a URL

Method Summary

Modifier and Type	Method	Description
<T extends Entry> T	getEntry(File file)	Get an entry from the cache, using generics to describe the type expected.
static PluginManager	getPluginManager()
void	refreshSearchPath()	Refresh the search path.
void	scanForClassFiles()	Scan the supplied plugin path to find classes set by the plugin search path and then examine the classes to see if any of the correct interfaces and annotations are supported.

Methods declared in class java.lang.Object

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

Methods declared in interface com.ibm.java.diagnostics.utils.plugins.PluginManager

addListener, getCache, getClasspath, getListeners, removeListener

Field Detail

logger

protected static final Logger logger

cache

protected final Container cache

the cache of scanned files for plugins

pluginSearchPath

protected final ArrayList<File> pluginSearchPath

specify classloader paths by URI as this can be used by the File class and converted into a URL

Method Detail

getPluginManager

public static PluginManager getPluginManager()

refreshSearchPath

public void refreshSearchPath()

Refresh the search path. This will take it's setting in order from 1. System property : com.ibm.java.diagnostics.plugins 2. Environment variable : com.ibm.java.diagnostics.plugins

Specified by:

refreshSearchPath in interface PluginManager

scanForClassFiles

public void scanForClassFiles()
                       throws CommandException

Scan the supplied plugin path to find classes set by the plugin search path and then examine the classes to see if any of the correct interfaces and annotations are supported. This method does not support MVS on z/OS, the path needs to point to HFS locations

Specified by:

scanForClassFiles in interface PluginManager

Throws:

CommandException

getEntry

public <T extends Entry> T getEntry(File file)

Get an entry from the cache, using generics to describe the type expected.

Type Parameters:

T -

Parameters:

file -

Returns: