public NamingContext(Hashtable env,
    String name) throws NamingException 
{
    // ----------------------------------------------------------- Constructors
        this.bindings = new HashMap();
        this.env = new Hashtable();
        // FIXME ? Could be put in the environment ?
        this.name = name;
        // Populating the environment hashtable
        if (env != null ) {
            Enumeration envEntries = env.keys();
            while (envEntries.hasMoreElements()) {
                String entryName = (String) envEntries.nextElement();
                addToEnvironment(entryName, env.get(entryName));
            }
        }
}

Builds a naming context using the given environment.

 public NamingContext(Hashtable env,
    String name,
    HashMap bindings) throws NamingException 
{
        this(env, name);
        this.bindings = bindings;
}

Builds a naming context using the given environment.

 public Object addToEnvironment(String propName,
    Object propVal) throws NamingException 
{
        return env.put(propName, propVal);
}

Adds a new environment property to the environment of this context. If the property already exists, its value is overwritten.

 public  void bind(Name name,
    Object obj) throws NamingException 
{
        bind(name, obj, false);
}

Binds a name to an object. All intermediate contexts and the target context (that named by all but terminal atomic component of the name) must already exist.

 public  void bind(String name,
    Object obj) throws NamingException 
{
        bind(new CompositeName(name), obj);
}

Binds a name to an object.

 protected  void bind(Name name,
    Object obj,
    boolean rebind) throws NamingException 
{
        
        checkWritable();
        while ((!name.isEmpty()) && (name.get(0).length() == 0))
            name = name.getSuffix(1);
        if (name.isEmpty())
            throw new NamingException
                (sm.getString("namingContext.invalidName"));
        NamingEntry entry = (NamingEntry) bindings.get(name.get(0));
        if (name.size()  > 1) {
            if (entry == null) {
                throw new NameNotFoundException
                    (sm.getString("namingContext.nameNotBound", name.get(0)));
            }
            if (entry.type == NamingEntry.CONTEXT) {
                if (rebind) {
                    ((Context) entry.value).rebind(name.getSuffix(1), obj);
                } else {
                    ((Context) entry.value).bind(name.getSuffix(1), obj);
                }
            } else {
                throw new NamingException
                    (sm.getString("namingContext.contextExpected"));
            }
        } else {
            if ((!rebind) && (entry != null)) {
                throw new NameAlreadyBoundException
                    (sm.getString("namingContext.alreadyBound", name.get(0)));
            } else {
                // Getting the type of the object and wrapping it within a new
                // NamingEntry
                Object toBind = 
                    NamingManager.getStateToBind(obj, name, this, env);
                if (toBind instanceof Context) {
                    entry = new NamingEntry(name.get(0), toBind, 
                                            NamingEntry.CONTEXT);
                } else if (toBind instanceof LinkRef) {
                    entry = new NamingEntry(name.get(0), toBind, 
                                            NamingEntry.LINK_REF);
                } else if (toBind instanceof Reference) {
                    entry = new NamingEntry(name.get(0), toBind, 
                                            NamingEntry.REFERENCE);
                } else if (toBind instanceof Referenceable) {
                    toBind = ((Referenceable) toBind).getReference();
                    entry = new NamingEntry(name.get(0), toBind, 
                                            NamingEntry.REFERENCE);
                } else {
                    entry = new NamingEntry(name.get(0), toBind, 
                                            NamingEntry.ENTRY);
                }
                bindings.put(name.get(0), entry);
            }
        }
}

Binds a name to an object. All intermediate contexts and the target context (that named by all but terminal atomic component of the name) must already exist.

 protected  void checkWritable() throws NamingException 
{
        if (!isWritable())
            throw new NamingException(sm.getString("namingContext.readOnly"));
}

Throws a naming exception is Context is not writable.

 public  void close() throws NamingException 
{
        env.clear();
}

Closes this context. This method releases this context's resources immediately, instead of waiting for them to be released automatically by the garbage collector. This method is idempotent: invoking it on a context that has already been closed has no effect. Invoking any other method on a closed context is not allowed, and results in undefined behaviour.

 public Name composeName(Name name,
    Name prefix) throws NamingException 
{
        prefix = (Name) prefix.clone();
        return prefix.addAll(name);
}

Composes the name of this context with a name relative to this context.

Given a name (name) relative to this context, and the name (prefix) of this context relative to one of its ancestors, this method returns the composition of the two names using the syntax appropriate for the naming system(s) involved. That is, if name names an object relative to this context, the result is the name of the same object, but relative to the ancestor context. None of the names may be null.

 public String composeName(String name,
    String prefix) throws NamingException 
{
        return prefix + "/" + name;
}

Composes the name of this context with a name relative to this context.

 public Context createSubcontext(Name name) throws NamingException 
{
        checkWritable();
        Context newContext = new NamingContext(env, this.name);
        bind(name, newContext);
        return newContext;
}

Creates and binds a new context. Creates a new context with the given name and binds it in the target context (that named by all but terminal atomic component of the name). All intermediate contexts and the target context must already exist.

 public Context createSubcontext(String name) throws NamingException 
{
        return createSubcontext(new CompositeName(name));
}

Creates and binds a new context.

 public  void destroySubcontext(Name name) throws NamingException 
{
        
        checkWritable();
        while ((!name.isEmpty()) && (name.get(0).length() == 0))
            name = name.getSuffix(1);
        if (name.isEmpty())
            throw new NamingException
                (sm.getString("namingContext.invalidName"));
        NamingEntry entry = (NamingEntry) bindings.get(name.get(0));
        if (entry == null) {
            throw new NameNotFoundException
                (sm.getString("namingContext.nameNotBound", name.get(0)));
        }
        if (name.size()  > 1) {
            if (entry.type == NamingEntry.CONTEXT) {
                ((Context) entry.value).unbind(name.getSuffix(1));
            } else {
                throw new NamingException
                    (sm.getString("namingContext.contextExpected"));
            }
        } else {
            if (entry.type == NamingEntry.CONTEXT) {
                ((Context) entry.value).close();
                bindings.remove(name.get(0));
            } else {
                throw new NotContextException
                    (sm.getString("namingContext.contextExpected"));
            }
        }
}

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.

 public  void destroySubcontext(String name) throws NamingException 
{
        destroySubcontext(new CompositeName(name));
}

Destroys the named context and removes it from the namespace.

 public Hashtable getEnvironment() throws NamingException 
{
        return env;
}

Retrieves the environment in effect for this context. See class description for more details on environment properties. The caller should not make any changes to the object returned: their effect on the context is undefined. The environment of this context may be changed using addToEnvironment() and removeFromEnvironment().

 public String getNameInNamespace() throws NamingException 
{
        throw  new OperationNotSupportedException
            (sm.getString("namingContext.noAbsoluteName"));
        //FIXME ?
}

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.

 public NameParser getNameParser(Name name) throws NamingException 
{
        while ((!name.isEmpty()) && (name.get(0).length() == 0))
            name = name.getSuffix(1);
        if (name.isEmpty())
            return nameParser;
        if (name.size()  > 1) {
            Object obj = bindings.get(name.get(0));
            if (obj instanceof Context) {
                return ((Context) obj).getNameParser(name.getSuffix(1));
            } else {
                throw new NotContextException
                    (sm.getString("namingContext.contextExpected"));
            }
        }
        return nameParser;
}

Retrieves the parser associated with the named context. In a federation of namespaces, different naming systems will parse names differently. This method allows an application to get a parser for parsing names into their atomic components using the naming convention of a particular naming system. Within any single naming system, NameParser objects returned by this method must be equal (using the equals() test).

 public NameParser getNameParser(String name) throws NamingException 
{
        return getNameParser(new CompositeName(name));
}

Retrieves the parser associated with the named context.

 protected boolean isWritable() 
{
        return ContextAccessController.isWritable(name);
}

Returns true if writing is allowed on this context.

 public NamingEnumeration list(Name name) throws NamingException 
{
        // Removing empty parts
        while ((!name.isEmpty()) && (name.get(0).length() == 0))
            name = name.getSuffix(1);
        if (name.isEmpty()) {
            return new NamingContextEnumeration(bindings.values().iterator());
        }
        NamingEntry entry = (NamingEntry) bindings.get(name.get(0));
        if (entry == null) {
            throw new NameNotFoundException
                (sm.getString("namingContext.nameNotBound", name.get(0)));
        }
        if (entry.type != NamingEntry.CONTEXT) {
            throw new NamingException
                (sm.getString("namingContext.contextExpected"));
        }
        return ((Context) entry.value).list(name.getSuffix(1));
}

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.

 public NamingEnumeration list(String name) throws NamingException 
{
        return list(new CompositeName(name));
}

Enumerates the names bound in the named context, along with the class names of objects bound to them.

 public NamingEnumeration listBindings(Name name) throws NamingException 
{
        // Removing empty parts
        while ((!name.isEmpty()) && (name.get(0).length() == 0))
            name = name.getSuffix(1);
        if (name.isEmpty()) {
            return new NamingContextBindingsEnumeration(bindings.values().iterator(), this);
        }
        NamingEntry entry = (NamingEntry) bindings.get(name.get(0));
        if (entry == null) {
            throw new NameNotFoundException
                (sm.getString("namingContext.nameNotBound", name.get(0)));
        }
        if (entry.type != NamingEntry.CONTEXT) {
            throw new NamingException
                (sm.getString("namingContext.contextExpected"));
        }
        return ((Context) entry.value).listBindings(name.getSuffix(1));
}

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.

 public NamingEnumeration listBindings(String name) throws NamingException 
{
        return listBindings(new CompositeName(name));
}

Enumerates the names bound in the named context, along with the objects bound to them.

 public Object lookup(Name name) throws NamingException 
{
    // --------------------------------------------------------- Public Methods
    // -------------------------------------------------------- Context Methods
        return lookup(name, true);
}

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).

 public Object lookup(String name) throws NamingException 
{
        return lookup(new CompositeName(name), true);
}

Retrieves the named object.

 protected Object lookup(Name name,
    boolean resolveLinks) throws NamingException 
{
        // Removing empty parts
        while ((!name.isEmpty()) && (name.get(0).length() == 0))
            name = name.getSuffix(1);
        if (name.isEmpty()) {
            // If name is empty, a newly allocated naming context is returned
            return new NamingContext(env, this.name, bindings);
        }
        NamingEntry entry = (NamingEntry) bindings.get(name.get(0));
        if (entry == null) {
            throw new NameNotFoundException
                (sm.getString("namingContext.nameNotBound", name.get(0)));
        }
        if (name.size()  > 1) {
            // If the size of the name is greater that 1, then we go through a
            // number of subcontexts.
            if (entry.type != NamingEntry.CONTEXT) {
                throw new NamingException
                    (sm.getString("namingContext.contextExpected"));
            }
            return ((Context) entry.value).lookup(name.getSuffix(1));
        } else {
            if ((resolveLinks) && (entry.type == NamingEntry.LINK_REF)) {
                String link = ((LinkRef) entry.value).getLinkName();
                if (link.startsWith(".")) {
                    // Link relative to this context
                    return lookup(link.substring(1));
                } else {
                    return (new InitialContext(env)).lookup(link);
                }
            } else if (entry.type == NamingEntry.REFERENCE) {
                try {
                    Object obj = NamingManager.getObjectInstance
                        (entry.value, name, this, env);
                    if (obj != null) {
                        entry.value = obj;
                        entry.type = NamingEntry.ENTRY;
                    }
                    return obj;
                } catch (NamingException e) {
                    throw e;
                } catch (Exception e) {
                    log.warn(sm.getString
                             ("namingContext.failResolvingReference"), e);
                    throw new NamingException(e.getMessage());
                }
            } else {
                return entry.value;
            }
        }
}

Retrieves the named object.

 public Object lookupLink(Name name) throws NamingException 
{
        return lookup(name, false);
}

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.

 public Object lookupLink(String name) throws NamingException 
{
        return lookup(new CompositeName(name), false);
}

Retrieves the named object, following links except for the terminal atomic component of the name.

 public  void rebind(Name name,
    Object obj) throws NamingException 
{
        bind(name, obj, true);
}

Binds a name to an object, overwriting any existing binding. All intermediate contexts and the target context (that named by all but terminal atomic component of the name) must already exist.

If the object is a DirContext, any existing attributes associated with the name are replaced with those of the object. Otherwise, any existing attributes associated with the name remain unchanged.

 public  void rebind(String name,
    Object obj) throws NamingException 
{
        rebind(new CompositeName(name), obj);
}

Binds a name to an object, overwriting any existing binding.

 public Object removeFromEnvironment(String propName) throws NamingException 
{
        return env.remove(propName);
}

Removes an environment property from the environment of this context.

 public  void rename(Name oldName,
    Name newName) throws NamingException 
{
        Object value = lookup(oldName);
        bind(newName, value);
        unbind(oldName);
}

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.

 public  void rename(String oldName,
    String newName) throws NamingException 
{
        rename(new CompositeName(oldName), new CompositeName(newName));
}

Binds a new name to the object bound to an old name, and unbinds the old name.

 public  void unbind(Name name) throws NamingException 
{
        checkWritable();
        while ((!name.isEmpty()) && (name.get(0).length() == 0))
            name = name.getSuffix(1);
        if (name.isEmpty())
            throw new NamingException
                (sm.getString("namingContext.invalidName"));
        NamingEntry entry = (NamingEntry) bindings.get(name.get(0));
        if (entry == null) {
            throw new NameNotFoundException
                (sm.getString("namingContext.nameNotBound", name.get(0)));
        }
        if (name.size()  > 1) {
            if (entry.type == NamingEntry.CONTEXT) {
                ((Context) entry.value).unbind(name.getSuffix(1));
            } else {
                throw new NamingException
                    (sm.getString("namingContext.contextExpected"));
            }
        } else {
            bindings.remove(name.get(0));
        }
}

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.

 public  void unbind(String name) throws NamingException 
{
        unbind(new CompositeName(name));
}

Unbinds the named object.