Package org.apache.naming.resources

Class WARDirContext

java.lang.Object

org.apache.naming.resources.BaseDirContext

org.apache.naming.resources.WARDirContext

All Implemented Interfaces:

Context, DirContext

public class WARDirContext
extends BaseDirContext

WAR Directory Context implementation.

Version:

$Revision: 1.3 $ $Date: 2006/03/12 01:27:13 $

Author:

Remy Maucherat

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	WARDirContext.Entry	Entries structure.
protected class	WARDirContext.WARResource	This specialized resource implementation avoids opening the IputStream to the WAR right away.

Field Summary

Fields

Modifier and Type	Field	Description
protected ZipFile	base	The WAR file.
protected WARDirContext.Entry	entries	WAR entries.

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

cached, cacheMaxSize, cacheTTL, debug, docBase, env

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

Fields inherited from interface javax.naming.directory.DirContext

ADD_ATTRIBUTE, REMOVE_ATTRIBUTE, REPLACE_ATTRIBUTE

Constructor Summary

Constructors

Modifier	Constructor	Description
	WARDirContext()	Builds a WAR directory context using the given environment.
	WARDirContext(Hashtable<String,Object> env)	Builds a WAR directory context using the given environment.
protected	WARDirContext(ZipFile base, WARDirContext.Entry entries)	Constructor used for returning fake subcontexts.

Method Summary

Modifier and Type	Method	Description
void	bind(String name, Object obj, Attributes attrs)	Binds a name to an object, along with associated attributes.
DirContext	createSubcontext(String name, Attributes attrs)	Creates and binds a new context, along with associated attributes.
void	destroySubcontext(String name)	Destroys the named context and removes it from the namespace.
Attributes	getAttributes(String name, String[] attrIds)	Retrieves selected attributes associated with a named object.
Attributes	getAttributes(Name name, String[] attrIds)	Retrieves all of the attributes associated with a named object.
String	getNameInNamespace()	Retrieves the full name of this context within its own namespace.
DirContext	getSchema(String name)	Retrieves the schema associated with the named object.
DirContext	getSchemaClassDefinition(String name)	Retrieves a context containing the schema objects of the named object's class definitions.
NamingEnumeration<NameClassPair>	list(String name)	Enumerates the names bound in the named context, along with the class names of objects bound to them.
NamingEnumeration<NameClassPair>	list(Name name)	Enumerates the names bound in the named context, along with the class names of objects bound to them.
protected ArrayList<NamingEntry>	list(WARDirContext.Entry entry)	List children as objects.
NamingEnumeration<Binding>	listBindings(String name)	Enumerates the names bound in the named context, along with the objects bound to them.
NamingEnumeration<Binding>	listBindings(Name name)	Enumerates the names bound in the named context, along with the objects bound to them.
protected void	loadEntries()	Constructs a tree of the entries contained in a WAR file.
Object	lookup(String name)	Retrieves the named object.
Object	lookup(Name name)	Retrieves the named object.
Object	lookupLink(String name)	Retrieves the named object, following links except for the terminal atomic component of the name.
void	modifyAttributes(String name, int mod_op, Attributes attrs)	Modifies the attributes associated with a named object.
void	modifyAttributes(String name, ModificationItem[] mods)	Modifies the attributes associated with a named object using an an ordered list of modifications.
protected String	normalize(ZipEntry entry)	Normalize the name of an entry read from the Zip.
void	rebind(String name, Object obj, Attributes attrs)	Binds a name to an object, along with associated attributes, overwriting any existing binding.
void	release()	Release any resources allocated for this directory context.
void	rename(String oldName, String newName)	Binds a new name to the object bound to an old name, and unbinds the old name.
NamingEnumeration<SearchResult>	search(String name, String filterExpr, Object[] filterArgs, SearchControls cons)	Searches in the named context or object for entries that satisfy the given search filter.
NamingEnumeration<SearchResult>	search(String name, String filter, SearchControls cons)	Searches in the named context or object for entries that satisfy the given search filter.
NamingEnumeration<SearchResult>	search(String name, Attributes matchingAttributes)	Searches in a single context for objects that contain a specified set of attributes.
NamingEnumeration<SearchResult>	search(String name, Attributes matchingAttributes, String[] attributesToReturn)	Searches in a single context for objects that contain a specified set of attributes, and retrieves selected attributes.
void	setDocBase(String docBase)	Set the document root.
protected WARDirContext.Entry	treeLookup(Name name)	Entry tree lookup.
void	unbind(String name)	Unbinds the named object.

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

addToEnvironment, allocate, bind, bind, bind, close, composeName, composeName, createSubcontext, createSubcontext, createSubcontext, destroySubcontext, getAttributes, getAttributes, getCacheMaxSize, getCacheTTL, getDebug, getDocBase, getEnvironment, getNameParser, getNameParser, getSchema, getSchemaClassDefinition, isCached, 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

base

protected ZipFile base

The WAR file.

entries

protected WARDirContext.Entry entries

WAR entries.

Constructor Detail

WARDirContext

public WARDirContext()

Builds a WAR directory context using the given environment.

WARDirContext

public WARDirContext(Hashtable<String,Object> env)

Builds a WAR directory context using the given environment.

WARDirContext

protected WARDirContext(ZipFile base,
                        WARDirContext.Entry entries)

Constructor used for returning fake subcontexts.

Method Detail

setDocBase

public void setDocBase(String docBase)

Set the document root.

Overrides:

setDocBase in class BaseDirContext

Parameters:

docBase - The new document root

Throws:

IllegalArgumentException - if the specified value is not supported by this implementation

IllegalArgumentException - if this would create a malformed URL

release

public void release()

Release any resources allocated for this directory context.

Overrides:

release in class BaseDirContext

lookup

public Object lookup(String name)
              throws NamingException

Retrieves the named object.

Specified by:

lookup in interface Context

Specified by:

lookup in class BaseDirContext

Parameters:

name - the name of the object to look up

Returns:

the object bound to name

Throws:

NamingException - if a naming exception is encountered

lookup

public Object lookup(Name name)
              throws NamingException

Retrieves the named object. If name is empty, returns a new instance of this context (which represents the same naming context as this context, but its environment may be modified independently and it may be accessed concurrently).

Specified by:

lookup in interface Context

Overrides:

lookup in class BaseDirContext

Parameters:

name - the name of the object to look up

Returns:

the object bound to name

Throws:

NamingException - if a naming exception is encountered

unbind

public void unbind(String name)
            throws NamingException

Unbinds the named object. Removes the terminal atomic name in name from the target context--that named by all but the terminal atomic part of name.

This method is idempotent. It succeeds even if the terminal atomic name is not bound in the target context, but throws NameNotFoundException if any of the intermediate contexts do not exist.

Specified by:

unbind in interface Context

Specified by:

unbind in class BaseDirContext

Parameters:

name - the name to bind; may not be empty

Throws:

NameNotFoundException - if an intermediate context does not exist

NamingException - if a naming exception is encountered

rename

public void rename(String oldName,
                   String newName)
            throws NamingException

Binds a new name to the object bound to an old name, and unbinds the old name. Both names are relative to this context. Any attributes associated with the old name become associated with the new name. Intermediate contexts of the old name are not changed.

Specified by:

rename in interface Context

Specified by:

rename in class BaseDirContext

Parameters:

oldName - the name of the existing binding; may not be empty

newName - the name of the new binding; may not be empty

Throws:

NameAlreadyBoundException - if newName is already bound

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

Specified by:

list in class BaseDirContext

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

list

public NamingEnumeration<NameClassPair> list(Name 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 BaseDirContext

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

Specified by:

listBindings in class BaseDirContext

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

listBindings

public NamingEnumeration<Binding> listBindings(Name 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 BaseDirContext

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

destroySubcontext

public void destroySubcontext(String name)
                       throws NamingException

Destroys the named context and removes it from the namespace. Any attributes associated with the name are also removed. Intermediate contexts are not destroyed.

This method is idempotent. It succeeds even if the terminal atomic name is not bound in the target context, but throws NameNotFoundException if any of the intermediate contexts do not exist. In a federated naming system, a context from one naming system may be bound to a name in another. One can subsequently look up and perform operations on the foreign context using a composite name. However, an attempt destroy the context using this composite name will fail with NotContextException, because the foreign context is not a "subcontext" of the context in which it is bound. Instead, use unbind() to remove the binding of the foreign context. Destroying the foreign context requires that the destroySubcontext() be performed on a context from the foreign context's "native" naming system.

Specified by:

destroySubcontext in interface Context

Specified by:

destroySubcontext in class BaseDirContext

Parameters:

name - the name of the context to be destroyed; may not be empty

Throws:

NameNotFoundException - if an intermediate context does not exist

NotContextException - if the name is bound but does not name a context, or does not name a context of the appropriate type

NamingException

lookupLink

public Object lookupLink(String name)
                  throws NamingException

Retrieves the named object, following links except for the terminal atomic component of the name. If the object bound to name is not a link, returns the object itself.

Specified by:

lookupLink in interface Context

Specified by:

lookupLink in class BaseDirContext

Parameters:

name - the name of the object to look up

Returns:

the object bound to name, not following the terminal link (if any).

Throws:

NamingException - if a naming exception is encountered

getNameInNamespace

public String getNameInNamespace()
                          throws NamingException

Retrieves the full name of this context within its own namespace.

Many naming services have a notion of a "full name" for objects in their respective namespaces. For example, an LDAP entry has a distinguished name, and a DNS record has a fully qualified name. This method allows the client application to retrieve this name. The string returned by this method is not a JNDI composite name and should not be passed directly to context methods. In naming systems for which the notion of full name does not make sense, OperationNotSupportedException is thrown.

Specified by:

getNameInNamespace in interface Context

Specified by:

getNameInNamespace in class BaseDirContext

Returns:

this context's name in its own namespace; never null

Throws:

OperationNotSupportedException - if the naming system does not have the notion of a full name

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

Specified by:

getAttributes in class BaseDirContext

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

getAttributes

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

Retrieves all of the attributes associated with a named object.

Specified by:

getAttributes in interface DirContext

Overrides:

getAttributes in class BaseDirContext

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 set of attributes associated with name. Returns an empty attribute set if name has no attributes; never null.

Throws:

NamingException - if a naming exception is encountered

modifyAttributes

public void modifyAttributes(String name,
                             int mod_op,
                             Attributes attrs)
                      throws NamingException

Modifies the attributes associated with a named object. The order of the modifications is not specified. Where possible, the modifications are performed atomically.

Specified by:

modifyAttributes in interface DirContext

Specified by:

modifyAttributes in class BaseDirContext

Parameters:

name - the name of the object whose attributes will be updated

mod_op - the modification operation, one of: ADD_ATTRIBUTE, REPLACE_ATTRIBUTE, REMOVE_ATTRIBUTE

attrs - the attributes to be used for the modification; may not be null

Throws:

AttributeModificationException - if the modification cannot be completed successfully

NamingException - if a naming exception is encountered

modifyAttributes

public void modifyAttributes(String name,
                             ModificationItem[] mods)
                      throws NamingException

Modifies the attributes associated with a named object using an an ordered list of modifications. The modifications are performed in the order specified. Each modification specifies a modification operation code and an attribute on which to operate. Where possible, the modifications are performed atomically.

Specified by:

modifyAttributes in interface DirContext

Specified by:

modifyAttributes in class BaseDirContext

Parameters:

name - the name of the object whose attributes will be updated

mods - an ordered sequence of modifications to be performed; may not be null

Throws:

AttributeModificationException - if the modification cannot be completed successfully

NamingException - if a naming exception is encountered

bind

public void bind(String name,
                 Object obj,
                 Attributes attrs)
          throws NamingException

Binds a name to an object, along with associated attributes. If attrs is null, the resulting binding will have the attributes associated with obj if obj is a DirContext, and no attributes otherwise. If attrs is non-null, the resulting binding will have attrs as its attributes; any attributes associated with obj are ignored.

Specified by:

bind in interface DirContext

Specified by:

bind in class BaseDirContext

Parameters:

name - the name to bind; may not be empty

obj - the object to bind; possibly null

attrs - the attributes to associate with the binding

Throws:

NameAlreadyBoundException - if name is already bound

InvalidAttributesException - if some "mandatory" attributes of the binding are not supplied

NamingException - if a naming exception is encountered

rebind

public void rebind(String name,
                   Object obj,
                   Attributes attrs)
            throws NamingException

Binds a name to an object, along with associated attributes, overwriting any existing binding. If attrs is null and obj is a DirContext, the attributes from obj are used. If attrs is null and obj is not a DirContext, any existing attributes associated with the object already bound in the directory remain unchanged. If attrs is non-null, any existing attributes associated with the object already bound in the directory are removed and attrs is associated with the named object. If obj is a DirContext and attrs is non-null, the attributes of obj are ignored.

Specified by:

rebind in interface DirContext

Specified by:

rebind in class BaseDirContext

Parameters:

name - the name to bind; may not be empty

obj - the object to bind; possibly null

attrs - the attributes to associate with the binding

Throws:

InvalidAttributesException - if some "mandatory" attributes of the binding are not supplied

NamingException - if a naming exception is encountered

createSubcontext

public DirContext createSubcontext(String name,
                                   Attributes attrs)
                            throws NamingException

Creates and binds a new context, along with associated attributes. This method creates a new subcontext with the given name, binds it in the target context (that named by all but terminal atomic component of the name), and associates the supplied attributes with the newly created object. All intermediate and target contexts must already exist. If attrs is null, this method is equivalent to Context.createSubcontext().

Specified by:

createSubcontext in interface DirContext

Specified by:

createSubcontext in class BaseDirContext

Parameters:

name - the name of the context to create; may not be empty

attrs - the attributes to associate with the newly created context

Returns:

the newly created context

Throws:

NameAlreadyBoundException - if the name is already bound

InvalidAttributesException - if attrs does not contain all the mandatory attributes required for creation

NamingException - if a naming exception is encountered

getSchema

public DirContext getSchema(String name)
                     throws NamingException

Retrieves the schema associated with the named object. The schema describes rules regarding the structure of the namespace and the attributes stored within it. The schema specifies what types of objects can be added to the directory and where they can be added; what mandatory and optional attributes an object can have. The range of support for schemas is directory-specific.

Specified by:

getSchema in interface DirContext

Specified by:

getSchema in class BaseDirContext

Parameters:

name - the name of the object whose schema is to be retrieved

Returns:

the schema associated with the context; never null

Throws:

OperationNotSupportedException - if schema not supported

NamingException - if a naming exception is encountered

getSchemaClassDefinition

public DirContext getSchemaClassDefinition(String name)
                                    throws NamingException

Retrieves a context containing the schema objects of the named object's class definitions.

Specified by:

getSchemaClassDefinition in interface DirContext

Specified by:

getSchemaClassDefinition in class BaseDirContext

Parameters:

name - the name of the object whose object class definition is to be retrieved

Returns:

the DirContext containing the named object's class definitions; never null

Throws:

OperationNotSupportedException - if schema not supported

NamingException - if a naming exception is encountered

search

public NamingEnumeration<SearchResult> search(String name,
                                              Attributes matchingAttributes,
                                              String[] attributesToReturn)
                                       throws NamingException

Searches in a single context for objects that contain a specified set of attributes, and retrieves selected attributes. The search is performed using the default SearchControls settings.

Specified by:

search in interface DirContext

Specified by:

search in class BaseDirContext

Parameters:

name - the name of the context to search

matchingAttributes - the attributes to search for. If empty or null, all objects in the target context are returned.

attributesToReturn - the attributes to return. null indicates that all attributes are to be returned; an empty array indicates that none are to be returned.

Returns:

a non-null enumeration of SearchResult objects. Each SearchResult contains the attributes identified by attributesToReturn and the name of the corresponding object, named relative to the context named by name.

Throws:

NamingException - if a naming exception is encountered

search

public NamingEnumeration<SearchResult> search(String name,
                                              Attributes matchingAttributes)
                                       throws NamingException

Searches in a single context for objects that contain a specified set of attributes. This method returns all the attributes of such objects. It is equivalent to supplying null as the atributesToReturn parameter to the method search(Name, Attributes, String[]).

Specified by:

search in interface DirContext

Specified by:

search in class BaseDirContext

Parameters:

name - the name of the context to search

matchingAttributes - the attributes to search for. If empty or null, all objects in the target context are returned.

Returns:

a non-null enumeration of SearchResult objects. Each SearchResult contains the attributes identified by attributesToReturn and the name of the corresponding object, named relative to the context named by name.

Throws:

NamingException - if a naming exception is encountered

search

public NamingEnumeration<SearchResult> search(String name,
                                              String filter,
                                              SearchControls cons)
                                       throws NamingException

Searches in the named context or object for entries that satisfy the given search filter. Performs the search as specified by the search controls.

Specified by:

search in interface DirContext

Specified by:

search in class BaseDirContext

Parameters:

name - the name of the context or object to search

filter - the filter expression to use for the search; may not be null

cons - the search controls that control the search. If null, the default search controls are used (equivalent to (new SearchControls())).

Returns:

an enumeration of SearchResults of the objects that satisfy the filter; never null

Throws:

InvalidSearchFilterException - if the search filter specified is not supported or understood by the underlying directory

InvalidSearchControlsException - if the search controls contain invalid settings

NamingException - if a naming exception is encountered

search

public NamingEnumeration<SearchResult> search(String name,
                                              String filterExpr,
                                              Object[] filterArgs,
                                              SearchControls cons)
                                       throws NamingException

Searches in the named context or object for entries that satisfy the given search filter. Performs the search as specified by the search controls.

Specified by:

search in interface DirContext

Specified by:

search in class BaseDirContext

Parameters:

name - the name of the context or object to search

filterExpr - the filter expression to use for the search. The expression may contain variables of the form "{i}" where i is a nonnegative integer. May not be null.

filterArgs - the array of arguments to substitute for the variables in filterExpr. The value of filterArgs[i] will replace each occurrence of "{i}". If null, equivalent to an empty array.

cons - the search controls that control the search. If null, the default search controls are used (equivalent to (new SearchControls())).

Returns:

an enumeration of SearchResults of the objects that satisy the filter; never null

Throws:

ArrayIndexOutOfBoundsException - if filterExpr contains {i} expressions where i is outside the bounds of the array filterArgs

InvalidSearchControlsException - if cons contains invalid settings

InvalidSearchFilterException - if filterExpr with filterArgs represents an invalid search filter

NamingException - if a naming exception is encountered

normalize

protected String normalize(ZipEntry entry)

Normalize the name of an entry read from the Zip.

loadEntries

protected void loadEntries()

Constructs a tree of the entries contained in a WAR file.

treeLookup

protected WARDirContext.Entry treeLookup(Name name)

Entry tree lookup.

list

protected ArrayList<NamingEntry> list(WARDirContext.Entry entry)

List children as objects.