Package org.apache.myfaces.config

Class MetaInfResourceCache

java.lang.Object

org.apache.myfaces.config.MetaInfResourceCache

public final class MetaInfResourceCache
extends Object

Caches, per web application, the names of all classpath resource entries under META-INF/ found in a single scan.

At startup several independent providers each scan META-INF/ for a different suffix (*.faces-config.xml, *.taglib.xml, contracts/.../jakarta.faces.contract.xml). Each scan opens and fully enumerates every jar on the classpath, so doing the walk once and letting the providers filter the shared name set by suffix avoids walking every jar multiple times. Only the few matching names are then resolved to URLs via ClassLoader.getResources(String) (which is what the providers did previously anyway). The cache lives in the ExternalContext application map, so it is scoped to the web application and released on undeploy - no static state.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	META_INF_PREFIX

Method Summary

Modifier and Type	Method	Description
static ClassLoader	getClassLoader()	The classloader used both to scan and (by the providers) to resolve matches, kept consistent so the cached names line up with what ClassLoader.getResources(String) will return.
static Set<String>	getMetaInfEntryNames(ExternalContext externalContext)	Returns the names of all classpath resource entries under META-INF/, scanning the classpath once per web application and caching the result.

Methods inherited from class java.lang.Object

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

Field Details

META_INF_PREFIX

public static final String META_INF_PREFIX

See Also:

• Constant Field Values

Method Details

getMetaInfEntryNames

public static Set<String> getMetaInfEntryNames(ExternalContext externalContext)

Returns the names of all classpath resource entries under META-INF/, scanning the classpath once per web application and caching the result. Callers filter the returned names by suffix and resolve matches via ClassLoader.getResources(String).

getClassLoader

public static ClassLoader getClassLoader()

The classloader used both to scan and (by the providers) to resolve matches, kept consistent so the cached names line up with what ClassLoader.getResources(String) will return.