org.apache.naming.resources

Class WebDirContext

java.lang.Object

org.apache.naming.resources.BaseDirContext

org.apache.naming.resources.FileDirContext

org.apache.naming.resources.WebDirContext

All Implemented Interfaces:

Context, DirContext

public class WebDirContext
extends FileDirContext

Filesystem Directory Web Context implementation helper class.

Author:

Shing Wai Chan

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	WebDirContext.JarFileEntry
protected static class	WebDirContext.JarResource This specialized resource implementation avoids opening the InputStream to the jar entry right away (which would put a lock on the jar file).
protected static class	WebDirContext.JarResourceAttributes This specialized resource attribute implementation does some lazy reading (to speed up simple checks, like checking the last modified date).

Nested classes/interfaces inherited from class org.apache.naming.resources.FileDirContext

FileDirContext.FileResource, FileDirContext.FileResourceAttributes

Field Summary

Fields

Modifier and Type	Field and Description
protected JarFileResourcesProvider	jarFileResourcesProvider
protected String	jarResourceBase
protected static String	META_INF_RESOURCES

Fields inherited from class org.apache.naming.resources.FileDirContext

absoluteBase, allowLinking, base, BUFFER_SIZE, caseSensitive, docBaseFileCache, fileCache, listFileCache, rb

Fields inherited from class org.apache.naming.resources.BaseDirContext

cached, cacheMaxSize, cacheTTL, debug, docBase, env

Fields inherited from interface javax.naming.directory.DirContext

ADD_ATTRIBUTE, REMOVE_ATTRIBUTE, REPLACE_ATTRIBUTE

Fields inherited from interface javax.naming.Context

APPLET, AUTHORITATIVE, BATCHSIZE, DNS_URL, INITIAL_CONTEXT_FACTORY, LANGUAGE, OBJECT_FACTORIES, PROVIDER_URL, REFERRAL, SECURITY_AUTHENTICATION, SECURITY_CREDENTIALS, SECURITY_PRINCIPAL, SECURITY_PROTOCOL, STATE_FACTORIES, URL_PKG_PREFIXES

Constructor Summary

Constructors

Constructor and Description
WebDirContext() Builds a file directory context using the given environment.
WebDirContext(Hashtable<String,Object> env) Builds a file directory context using the given environment.

Method Summary

Modifier and Type	Method and Description
protected String	getAbsoluteJarResourceName(String name)
Attributes	getAttributes(String name, String[] attrIds) Retrieves selected attributes associated with a named object.
NamingEnumeration<NameClassPair>	list(String name) Enumerates the names bound in the named context, along with the class names of objects bound to them.
protected List<NamingEntry>	list(WebDirContext.JarFileEntry jfeEntry)
NamingEnumeration<Binding>	listBindings(String name) Enumerates the names bound in the named context, along with the objects bound to them.
Object	lookup(String name) Retrieves the named object.
protected List<WebDirContext.JarFileEntry>	lookupAllFromJars(String name)
protected WebDirContext.JarFileEntry	lookupFromJars(String name)
void	release() Release any resources allocated for this directory context.
void	setJarFileResourcesProvider(JarFileResourcesProvider jarFileResourcesProvider)

Methods inherited from class org.apache.naming.resources.FileDirContext

bind, createSubcontext, destroySubcontext, file, getAllowLinking, getNameInNamespace, getSchema, getSchemaClassDefinition, isCaseSensitive, list, lookupLink, modifyAttributes, modifyAttributes, normalize, rebind, rebind, rename, search, search, search, search, setAllowLinking, setCaseSensitive, setDocBase, unbind

Methods inherited from class org.apache.naming.resources.BaseDirContext

addToEnvironment, allocate, bind, bind, bind, close, composeName, composeName, createSubcontext, createSubcontext, createSubcontext, destroySubcontext, getAttributes, getAttributes, getAttributes, getCacheMaxSize, getCacheTTL, getDebug, getDocBase, getEnvironment, getNameParser, getNameParser, getSchema, getSchemaClassDefinition, isCached, list, listBindings, lookup, lookupLink, modifyAttributes, modifyAttributes, rebind, rebind, rebind, removeFromEnvironment, rename, search, search, search, search, setCached, setCacheMaxSize, setCacheTTL, setDebug, unbind

Methods inherited from class java.lang.Object

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

Field Detail

META_INF_RESOURCES

protected static final String META_INF_RESOURCES

See Also:

Constant Field Values

jarFileResourcesProvider

protected JarFileResourcesProvider jarFileResourcesProvider

jarResourceBase

protected String jarResourceBase

Constructor Detail

WebDirContext

public WebDirContext()

Builds a file directory context using the given environment.

WebDirContext

public WebDirContext(Hashtable<String,Object> env)

Builds a file directory context using the given environment.

Method Detail

setJarFileResourcesProvider

public void setJarFileResourcesProvider(JarFileResourcesProvider jarFileResourcesProvider)

release

public void release()

Release any resources allocated for this directory context.

Overrides:

release in class FileDirContext

lookup

public Object lookup(String name)
              throws NamingException

Retrieves the named object.

Specified by:

lookup in interface Context

Overrides:

lookup in class FileDirContext

Parameters:

name - the name of the object to look up

Returns:

the object bound to name

Throws:

NamingException - if a naming exception is encountered

list

public NamingEnumeration<NameClassPair> list(String name)
                                      throws NamingException

Enumerates the names bound in the named context, along with the class names of objects bound to them. The contents of any subcontexts are not included.

If a binding is added to or removed from this context, its effect on an enumeration previously returned is undefined.

Specified by:

list in interface Context

Overrides:

list in class FileDirContext

Parameters:

name - the name of the context to list

Returns:

an enumeration of the names and class names of the bindings in this context. Each element of the enumeration is of type NameClassPair.

Throws:

NamingException - if a naming exception is encountered

listBindings

public NamingEnumeration<Binding> listBindings(String name)
                                        throws NamingException

Enumerates the names bound in the named context, along with the objects bound to them. The contents of any subcontexts are not included.

If a binding is added to or removed from this context, its effect on an enumeration previously returned is undefined.

Specified by:

listBindings in interface Context

Overrides:

listBindings in class FileDirContext

Parameters:

name - the name of the context to list

Returns:

an enumeration of the bindings in this context. Each element of the enumeration is of type Binding.

Throws:

NamingException - if a naming exception is encountered

getAttributes

public Attributes getAttributes(String name,
                                String[] attrIds)
                         throws NamingException

Retrieves selected attributes associated with a named object. See the class description regarding attribute models, attribute type names, and operational attributes.

Specified by:

getAttributes in interface DirContext

Overrides:

getAttributes in class FileDirContext

Parameters:

name - the name of the object from which to retrieve attributes

attrIds - the identifiers of the attributes to retrieve. null indicates that all attributes should be retrieved; an empty array indicates that none should be retrieved

Returns:

the requested attributes; never null

Throws:

NamingException - if a naming exception is encountered

lookupFromJars

protected WebDirContext.JarFileEntry lookupFromJars(String name)

lookupAllFromJars

protected List<WebDirContext.JarFileEntry> lookupAllFromJars(String name)

list

protected List<NamingEntry> list(WebDirContext.JarFileEntry jfeEntry)

getAbsoluteJarResourceName

protected String getAbsoluteJarResourceName(String name)