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From akaras...@apache.org
Subject svn commit: r379013 [10/45] - in /directory/trunks/apacheds: ./ core-plugin/ core-plugin/src/main/java/org/apache/directory/server/core/tools/schema/ core-plugin/src/test/java/org/apache/directory/server/core/tools/schema/ core-shared/ core-shared/src/...
Date Mon, 20 Feb 2006 03:58:21 GMT
Modified: directory/trunks/apacheds/core/src/main/java/org/apache/directory/server/core/interceptor/InterceptorChain.java
URL: http://svn.apache.org/viewcvs/directory/trunks/apacheds/core/src/main/java/org/apache/directory/server/core/interceptor/InterceptorChain.java?rev=379013&r1=379012&r2=379013&view=diff
==============================================================================
--- directory/trunks/apacheds/core/src/main/java/org/apache/directory/server/core/interceptor/InterceptorChain.java (original)
+++ directory/trunks/apacheds/core/src/main/java/org/apache/directory/server/core/interceptor/InterceptorChain.java Sun Feb 19 19:57:02 2006
@@ -1,1467 +1,1506 @@
-/*
- *   Copyright 2004 The Apache Software Foundation
- *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
- *
- *       http://www.apache.org/licenses/LICENSE-2.0
- *
- *   Unless required by applicable law or agreed to in writing, software
- *   distributed under the License is distributed on an "AS IS" BASIS,
- *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *   See the License for the specific language governing permissions and
- *   limitations under the License.
- *
- */
-package org.apache.directory.server.core.interceptor;
-
-
-import java.util.*;
-
-import javax.naming.ConfigurationException;
-import javax.naming.Name;
-import javax.naming.NamingEnumeration;
-import javax.naming.NamingException;
-import javax.naming.directory.Attributes;
-import javax.naming.directory.ModificationItem;
-import javax.naming.directory.SearchControls;
-
-import org.apache.directory.server.core.DirectoryServiceConfiguration;
-import org.apache.directory.server.core.configuration.DirectoryPartitionConfiguration;
-import org.apache.directory.server.core.configuration.InterceptorConfiguration;
-import org.apache.directory.server.core.configuration.MutableInterceptorConfiguration;
-import org.apache.directory.server.core.invocation.Invocation;
-import org.apache.directory.server.core.invocation.InvocationStack;
-import org.apache.directory.server.core.partition.DirectoryPartitionNexus;
-import org.apache.directory.server.core.partition.DirectoryPartitionNexusProxy;
-import org.apache.directory.shared.ldap.filter.ExprNode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-
-/**
- * Manages the chain of {@link Interceptor}s.
- *
- * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
- * @version $Rev$, $Date$
- */
-public class InterceptorChain
-{
-    private static final Logger log = LoggerFactory.getLogger( InterceptorChain.class );
-    
-    private final Interceptor FINAL_INTERCEPTOR = new Interceptor()
-    {
-        private DirectoryPartitionNexus nexus;
-
-        public void init( DirectoryServiceConfiguration factoryCfg, InterceptorConfiguration cfg )
-        {
-            this.nexus = factoryCfg.getPartitionNexus();
-        }
-
-
-        public void destroy()
-        {
-            // unused
-        }
-
-
-        public boolean compare( NextInterceptor next, Name name, String oid, Object value ) throws NamingException
-        {
-            return nexus.compare( name, oid, value );
-        }
-
-
-        public Attributes getRootDSE( NextInterceptor next ) throws NamingException
-        {
-            return nexus.getRootDSE();
-        }
-
-
-        public Name getMatchedName( NextInterceptor next, Name dn, boolean normalized ) throws NamingException
-        {
-            return ( Name ) nexus.getMatchedName( dn, normalized ).clone();
-        }
-
-
-        public Name getSuffix( NextInterceptor next, Name dn, boolean normalized ) throws NamingException
-        {
-            return ( Name ) nexus.getSuffix( dn, normalized ).clone();
-        }
-
-
-        public Iterator listSuffixes( NextInterceptor next, boolean normalized ) throws NamingException
-        {
-            return nexus.listSuffixes( normalized );
-        }
-
-
-        public void delete( NextInterceptor next, Name name ) throws NamingException
-        {
-            nexus.delete( name );
-        }
-
-
-        public void add( NextInterceptor next, String upName, Name normName, Attributes entry ) throws NamingException
-        {
-            nexus.add( upName, normName, entry );
-        }
-
-
-        public void modify( NextInterceptor next, Name name, int modOp, Attributes mods ) throws NamingException
-        {
-            nexus.modify( name, modOp, mods );
-        }
-
-
-        public void modify( NextInterceptor next, Name name, ModificationItem[] mods ) throws NamingException
-        {
-            nexus.modify( name, mods );
-        }
-
-
-        public NamingEnumeration list( NextInterceptor next, Name base ) throws NamingException
-        {
-            return nexus.list( base );
-        }
-
-
-        public NamingEnumeration search( NextInterceptor next, Name base, Map env, ExprNode filter, SearchControls searchCtls ) throws NamingException
-        {
-            return nexus.search( base, env, filter, searchCtls );
-        }
-
-
-        public Attributes lookup( NextInterceptor next, Name name ) throws NamingException
-        {
-            return ( Attributes ) nexus.lookup( name ).clone();
-        }
-
-
-        public Attributes lookup( NextInterceptor next, Name dn, String[] attrIds ) throws NamingException
-        {
-            return ( Attributes ) nexus.lookup( dn, attrIds ).clone();
-        }
-
-
-        public boolean hasEntry( NextInterceptor next, Name name ) throws NamingException
-        {
-            return nexus.hasEntry( name );
-        }
-
-
-        public boolean isSuffix( NextInterceptor next, Name name ) throws NamingException
-        {
-            return nexus.isSuffix( name );
-        }
-
-
-        public void modifyRn( NextInterceptor next, Name name, String newRn, boolean deleteOldRn ) throws NamingException
-        {
-            nexus.modifyRn( name, newRn, deleteOldRn );
-        }
-
-
-        public void move( NextInterceptor next, Name oriChildName, Name newParentName ) throws NamingException
-        {
-            nexus.move( oriChildName, newParentName );
-        }
-
-
-        public void move( NextInterceptor next, Name oriChildName, Name newParentName, String newRn, boolean deleteOldRn ) throws NamingException
-        {
-            nexus.move( oriChildName, newParentName, newRn, deleteOldRn );
-        }
-
-
-        public void addContextPartition( NextInterceptor next, DirectoryPartitionConfiguration cfg ) throws NamingException
-        {
-            nexus.addContextPartition( cfg );
-        }
-
-
-        public void removeContextPartition( NextInterceptor next, Name suffix ) throws NamingException
-        {
-            nexus.removeContextPartition( suffix );
-        }
-
-
-        public void bind( NextInterceptor next, Name bindDn, byte[] credentials, List mechanisms, String saslAuthId ) throws NamingException
-        {
-            nexus.bind( bindDn, credentials, mechanisms, saslAuthId );
-        }
-
-
-        public void unbind( NextInterceptor next, Name bindDn ) throws NamingException
-        {
-            nexus.unbind( bindDn );
-        }
-    };
-
-    private final Map name2entry = new HashMap();
-
-    private final Entry tail;
-
-    private Entry head;
-
-    private DirectoryServiceConfiguration factoryCfg;
-
-    /**
-     * Create a new interceptor chain.
-     */
-    public InterceptorChain()
-    {
-        MutableInterceptorConfiguration tailCfg = new MutableInterceptorConfiguration();
-        tailCfg.setName( "tail" );
-        tailCfg.setInterceptor( FINAL_INTERCEPTOR );
-        tail = new Entry( null, null, tailCfg );
-        head = tail;
-    }
-
-
-    /**
-     * Initializes and registers all interceptors according to the specified
-     * {@link DirectoryServiceConfiguration}.
-     */
-    public synchronized void init( DirectoryServiceConfiguration factoryCfg ) throws NamingException
-    {
-        this.factoryCfg = factoryCfg;
-
-        // Initialize tail first.
-        FINAL_INTERCEPTOR.init( factoryCfg, null );
-
-        // And register and initialize all interceptors
-        ListIterator i = factoryCfg.getStartupConfiguration().getInterceptorConfigurations().listIterator();
-        Interceptor interceptor = null;
-        try
-        {
-            while( i.hasNext() )
-            {
-                InterceptorConfiguration cfg = ( InterceptorConfiguration ) i.next();
-                
-                if ( log.isDebugEnabled() ) 
-                {
-                	log.debug( "Adding interceptor " + cfg.getName() ); 
-                }
-                
-                register( cfg );
-            }
-        }
-        catch ( Throwable t )
-        {
-            // destroy if failed to initialize all interceptors.
-            destroy();
-
-            if ( t instanceof NamingException )
-            {
-                throw ( NamingException ) t;
-            }
-            else
-            {
-                throw new InterceptorException( interceptor, "Failed to initialize interceptor chain.", t );
-            }
-        }
-    }
-
-
-    /**
-     * Deinitializes and deregisters all interceptors this chain contains.
-     */
-    public synchronized void destroy()
-    {
-        List entries = new ArrayList();
-        Entry e = tail;
-        do
-        {
-            entries.add( e );
-            e = e.prevEntry;
-        }
-        while ( e != null );
-
-        Iterator i = entries.iterator();
-        while ( i.hasNext() )
-        {
-            e = ( Entry ) i.next();
-            if( e != tail )
-            {
-                try
-                {
-                    deregister( e.configuration.getName() );
-                }
-                catch ( Throwable t )
-                {
-                    log.warn( "Failed to deregister an interceptor: " +
-                            e.configuration.getName(), t );
-                }
-            }
-        }
-    }
-
-
-    /**
-     * Returns the registered interceptor with the specified name.
-     * @return <tt>null</tt> if the specified name doesn't exist.
-     */
-    public Interceptor get( String interceptorName )
-    {
-        Entry e = (Entry) name2entry.get( interceptorName );
-        if( e == null )
-        {
-            return null;
-        }
-
-        return e.configuration.getInterceptor();
-    }
-
-    /**
-     * Returns the list of all registered interceptors.
-     */
-    public synchronized List getAll()
-    {
-        List result = new ArrayList();
-        Entry e = head;
-        do
-        {
-            result.add( e.configuration.getInterceptor() );
-            e = e.nextEntry;
-        }
-        while ( e != tail );
-
-        return result;
-    }
-
-    public synchronized void addFirst( InterceptorConfiguration cfg ) throws NamingException
-    {
-        register0( cfg, head );
-    }
-
-    public synchronized void addLast( InterceptorConfiguration cfg ) throws NamingException
-    {
-        register0( cfg, tail );
-    }
-
-    public synchronized void addBefore( String nextInterceptorName, InterceptorConfiguration cfg ) throws NamingException
-    {
-        Entry e = (Entry) name2entry.get( nextInterceptorName );
-        if( e == null )
-        {
-            throw new ConfigurationException( "Interceptor not found: " + nextInterceptorName );
-        }
-        register0( cfg, e );
-    }
-
-    public synchronized InterceptorConfiguration remove( String interceptorName ) throws NamingException
-    {
-        return deregister( interceptorName );
-    }
-
-    public synchronized void addAfter( String prevInterceptorName, InterceptorConfiguration cfg ) throws NamingException
-    {
-        Entry e = (Entry) name2entry.get( prevInterceptorName );
-        if( e == null )
-        {
-            throw new ConfigurationException( "Interceptor not found: " + prevInterceptorName );
-        }
-        register0( cfg, e.nextEntry );
-    }
-
-
-    /**
-     * Adds and initializes an interceptor with the specified configuration.
-     */
-    private void register( InterceptorConfiguration cfg ) throws NamingException
-    {
-        checkAddable( cfg );
-        register0( cfg, tail );
-    }
-
-
-    /**
-     * Removes and deinitializes the interceptor with the specified name.
-     */
-    private InterceptorConfiguration deregister( String name ) throws ConfigurationException
-    {
-        Entry entry = checkOldName( name );
-        Entry prevEntry = entry.prevEntry;
-        Entry nextEntry = entry.nextEntry;
-
-        if( nextEntry == null )
-        {
-            // Don't deregister tail
-            return null;
-        }
-
-        if ( prevEntry == null )
-        {
-            nextEntry.prevEntry = null;
-            head = nextEntry;
-        }
-        else
-        {
-            prevEntry.nextEntry = nextEntry;
-            nextEntry.prevEntry = prevEntry;
-        }
-
-        name2entry.remove( name );
-        entry.configuration.getInterceptor().destroy();
-
-        return entry.configuration;
-    }
-
-
-    private void register0( InterceptorConfiguration cfg, Entry nextEntry ) throws NamingException
-    {
-        String name = cfg.getName();
-        Interceptor interceptor = cfg.getInterceptor();
-        interceptor.init( factoryCfg, cfg );
-
-        Entry newEntry;
-        if( nextEntry == head )
-        {
-            newEntry = new Entry( null, head, cfg );
-            head.prevEntry = newEntry;
-            head = newEntry;
-        }
-        else if( head == tail )
-        {
-            newEntry = new Entry( null, tail, cfg );
-            tail.prevEntry = newEntry;
-            head = newEntry;
-        }
-        else
-        {
-            newEntry = new Entry( nextEntry.prevEntry, nextEntry, cfg );
-            nextEntry.prevEntry.nextEntry = newEntry;
-            nextEntry.prevEntry = newEntry;
-        }
-
-        name2entry.put( name, newEntry );
-    }
-
-
-    /**
-     * Throws an exception when the specified interceptor name is not registered in this chain.
-     *
-     * @return An interceptor entry with the specified name.
-     */
-    private Entry checkOldName( String baseName ) throws ConfigurationException
-    {
-        Entry e = ( Entry ) name2entry.get( baseName );
-
-        if ( e == null )
-        {
-            throw new ConfigurationException( "Unknown interceptor name:" + baseName );
-        }
-
-        return e;
-    }
-
-
-    /**
-     * Checks the specified interceptor name is already taken and throws an exception if already taken.
-     */
-    private void checkAddable( InterceptorConfiguration cfg ) throws ConfigurationException
-    {
-        if ( name2entry.containsKey( cfg.getName() ) )
-        {
-            throw new ConfigurationException( "Other interceptor is using name '" + cfg.getName() + "'" );
-        }
-    }
-
-
-    /**
-     * Gets the InterceptorEntry to use first with bypass information considered.
-     *
-     * @return the first entry to use.
-     */
-    private Entry getStartingEntry()
-    {
-        if ( InvocationStack.getInstance().isEmpty() )
-        {
-            return head;
-        }
-
-        Invocation invocation = InvocationStack.getInstance().peek();
-        if ( ! invocation.hasBypass() )
-        {
-            return head;
-        }
-
-        if ( invocation.isBypassed( DirectoryPartitionNexusProxy.BYPASS_ALL ) )
-        {
-            return tail;
-        }
-
-        Entry next = head;
-        while ( next != tail )
-        {
-            if ( invocation.isBypassed( next.configuration.getName() ) )
-            {
-                next = next.nextEntry;
-            }
-            else
-            {
-                return next;
-            }
-        }
-
-        return tail;
-    }
-
-
-    public Attributes getRootDSE() throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            return head.getRootDSE( next );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-
-    public Name getMatchedName( Name name, boolean normalized ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            return head.getMatchedName( next, name, normalized );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-
-    public Name getSuffix( Name name, boolean normalized ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            return head.getSuffix( next, name, normalized );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-
-    public boolean compare( Name name, String oid, Object value ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            return head.compare( next, name, oid, value );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-
-    public Iterator listSuffixes( boolean normalized ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            return head.listSuffixes( next, normalized );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-    public void addContextPartition( DirectoryPartitionConfiguration cfg ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            head.addContextPartition( next, cfg );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-    public void removeContextPartition( Name suffix ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            head.removeContextPartition( next, suffix );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-    public void delete( Name name ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            head.delete( next, name );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-        }
-    }
-
-
-    public void add( String upName, Name normName, Attributes entry ) throws NamingException
-    {
-        Entry node = getStartingEntry();
-        Interceptor head = node.configuration.getInterceptor();
-        NextInterceptor next = node.nextInterceptor;
-        try
-        {
-            head.add( next, upName, normName, entry );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-        }
-    }
-
-
-    public void bind( Name bindDn, byte[] credentials, List mechanisms, String saslAuthId ) throws NamingException
-    {
-        Entry node = getStartingEntry();
-        Interceptor head = node.configuration.getInterceptor();
-        NextInterceptor next = node.nextInterceptor;
-        try
-        {
-            head.bind( next, bindDn, credentials, mechanisms, saslAuthId );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-        }
-    }
-
-    
-    public void unbind( Name bindDn ) throws NamingException
-    {
-        Entry node = getStartingEntry();
-        Interceptor head = node.configuration.getInterceptor();
-        NextInterceptor next = node.nextInterceptor;
-        try
-        {
-            head.unbind( next, bindDn );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-        }
-    }
-
-    
-    public void modify( Name name, int modOp, Attributes mods ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            head.modify( next, name, modOp, mods );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-        }
-    }
-
-
-    public void modify( Name name, ModificationItem[] mods ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            head.modify( next, name, mods );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-        }
-    }
-
-
-    public NamingEnumeration list( Name base ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            return head.list( next, base );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-
-    public NamingEnumeration search( Name base, Map env, ExprNode filter, SearchControls searchCtls ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            return head.search( next, base, env, filter, searchCtls );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-
-    public Attributes lookup( Name name ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            return head.lookup( next, name );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-
-    public Attributes lookup( Name dn, String[] attrIds ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            return head.lookup( next, dn, attrIds );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-
-    public boolean hasEntry( Name name ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            return head.hasEntry( next, name );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-
-    public boolean isSuffix( Name name ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            return head.isSuffix( next, name );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-            throw new InternalError(); // Should be unreachable
-        }
-    }
-
-
-    public void modifyRn( Name name, String newRn, boolean deleteOldRn ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            head.modifyRn( next, name, newRn, deleteOldRn );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-        }
-    }
-
-
-    public void move( Name oriChildName, Name newParentName ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            head.move( next, oriChildName, newParentName );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-        }
-    }
-
-
-    public void move( Name oriChildName, Name newParentName, String newRn, boolean deleteOldRn ) throws NamingException
-    {
-        Entry entry = getStartingEntry();
-        Interceptor head = entry.configuration.getInterceptor();
-        NextInterceptor next = entry.nextInterceptor;
-        try
-        {
-            head.move( next, oriChildName, newParentName, newRn, deleteOldRn );
-        }
-        catch ( NamingException ne )
-        {
-            throw ne;
-        }
-        catch ( Throwable e )
-        {
-            throwInterceptorException( head, e );
-        }
-    }
-
-
-    /**
-     * Represents an internal entry of this chain.
-     */
-    private class Entry
-    {
-        private Entry prevEntry;
-
-        private Entry nextEntry;
-
-        private final InterceptorConfiguration configuration;
-
-        private final NextInterceptor nextInterceptor;
-
-
-        private Entry( Entry prevEntry, Entry nextEntry,
-                       InterceptorConfiguration configuration )
-        {
-            if( configuration == null )
-            {
-                throw new NullPointerException( "configuration" );
-            }
-
-            this.prevEntry = prevEntry;
-            this.nextEntry = nextEntry;
-            this.configuration = configuration;
-            this.nextInterceptor = new NextInterceptor()
-            {
-                private Entry getNextEntry()
-                {
-                    if ( InvocationStack.getInstance().isEmpty() )
-                    {
-                        return Entry.this.nextEntry;
-                    }
-
-                    Invocation invocation = InvocationStack.getInstance().peek();
-                    if ( ! invocation.hasBypass() )
-                    {
-                        return Entry.this.nextEntry;
-                    }
-
-//  I don't think we really need this since this check is performed by the chain when
-//  getting the interceptor head to use.
-//
-//                    if ( invocation.isBypassed( DirectoryPartitionNexusProxy.BYPASS_ALL ) )
-//                    {
-//                        return tail;
-//                    }
-
-                    Entry next = Entry.this.nextEntry;
-                    while ( next != tail )
-                    {
-                        if ( invocation.isBypassed( next.configuration.getName() ) )
-                        {
-                            next = next.nextEntry;
-                        }
-                        else
-                        {
-                            return next;
-                        }
-                    }
-
-                    return next;
-                }
-
-                public boolean compare( Name name, String oid, Object value ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        return interceptor.compare( next.nextInterceptor, name, oid, value );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-
-                public Attributes getRootDSE() throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        return interceptor.getRootDSE( next.nextInterceptor );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-                public Name getMatchedName( Name dn, boolean normalized ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        return interceptor.getMatchedName( next.nextInterceptor, dn, normalized );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-                public Name getSuffix( Name dn, boolean normalized ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        return interceptor.getSuffix( next.nextInterceptor, dn, normalized );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-                public Iterator listSuffixes( boolean normalized ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        return interceptor.listSuffixes( next.nextInterceptor, normalized );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-                public void delete( Name name ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        interceptor.delete( next.nextInterceptor, name );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                    }
-                }
-
-                public void add( String upName, Name normName, Attributes entry ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        interceptor.add( next.nextInterceptor, upName, normName, entry );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                    }
-                }
-
-                public void modify( Name name, int modOp, Attributes mods ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        interceptor.modify( next.nextInterceptor, name, modOp, mods );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                    }
-                }
-
-                public void modify( Name name, ModificationItem[] mods ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        interceptor.modify( next.nextInterceptor, name, mods );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                    }
-                }
-
-                public NamingEnumeration list( Name base ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        return interceptor.list( next.nextInterceptor, base );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-                public NamingEnumeration search( Name base, Map env, ExprNode filter, SearchControls searchCtls ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        return interceptor.search( next.nextInterceptor, base, env, filter, searchCtls );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-                public Attributes lookup( Name name ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        return interceptor.lookup( next.nextInterceptor, name );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-                public Attributes lookup( Name dn, String[] attrIds ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        return interceptor.lookup( next.nextInterceptor, dn, attrIds );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-                public boolean hasEntry( Name name ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        return interceptor.hasEntry( next.nextInterceptor, name );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-                public boolean isSuffix( Name name ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        return interceptor.isSuffix( next.nextInterceptor, name );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-                public void modifyRn( Name name, String newRn, boolean deleteOldRn ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        interceptor.modifyRn( next.nextInterceptor, name, newRn, deleteOldRn );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                    }
-                }
-
-                public void move( Name oriChildName, Name newParentName ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        interceptor.move( next.nextInterceptor, oriChildName, newParentName );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                    }
-                }
-
-                public void move( Name oriChildName, Name newParentName, String newRn, boolean deleteOldRn ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        interceptor.move( next.nextInterceptor, oriChildName, newParentName, newRn, deleteOldRn );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                    }
-                }
-
-
-                public void bind( Name bindDn, byte[] credentials, List mechanisms, String saslAuthId ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        interceptor.bind( next.nextInterceptor, bindDn, credentials, mechanisms, saslAuthId );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                    }
-                }
-
-                public void unbind( Name bindDn ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        interceptor.unbind( next.nextInterceptor, bindDn );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                    }
-                }
-
-                public void addContextPartition( DirectoryPartitionConfiguration cfg ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        interceptor.addContextPartition( next.nextInterceptor, cfg );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-
-                public void removeContextPartition( Name suffix ) throws NamingException
-                {
-                    Entry next = getNextEntry();
-                    Interceptor interceptor = next.configuration.getInterceptor();
-
-                    try
-                    {
-                        interceptor.removeContextPartition( next.nextInterceptor, suffix );
-                    }
-                    catch ( NamingException ne )
-                    {
-                        throw ne;
-                    }
-                    catch ( Throwable e )
-                    {
-                        throwInterceptorException( interceptor, e );
-                        throw new InternalError(); // Should be unreachable
-                    }
-                }
-            };
-        }
-    }
-
-
-    private static void throwInterceptorException( Interceptor interceptor, Throwable e ) throws InterceptorException
-    {
-        throw new InterceptorException( interceptor, "Unexpected exception.", e );
-    }
-}
+/*
+ *   Copyright 2004 The Apache Software Foundation
+ *
+ *   Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ *
+ */
+package org.apache.directory.server.core.interceptor;
+
+
+import java.util.*;
+
+import javax.naming.ConfigurationException;
+import javax.naming.Name;
+import javax.naming.NamingEnumeration;
+import javax.naming.NamingException;
+import javax.naming.directory.Attributes;
+import javax.naming.directory.ModificationItem;
+import javax.naming.directory.SearchControls;
+
+import org.apache.directory.server.core.DirectoryServiceConfiguration;
+import org.apache.directory.server.core.configuration.DirectoryPartitionConfiguration;
+import org.apache.directory.server.core.configuration.InterceptorConfiguration;
+import org.apache.directory.server.core.configuration.MutableInterceptorConfiguration;
+import org.apache.directory.server.core.invocation.Invocation;
+import org.apache.directory.server.core.invocation.InvocationStack;
+import org.apache.directory.server.core.partition.DirectoryPartitionNexus;
+import org.apache.directory.server.core.partition.DirectoryPartitionNexusProxy;
+import org.apache.directory.shared.ldap.filter.ExprNode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ * Manages the chain of {@link Interceptor}s.
+ *
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ * @version $Rev$, $Date$
+ */
+public class InterceptorChain
+{
+    private static final Logger log = LoggerFactory.getLogger( InterceptorChain.class );
+
+    private final Interceptor FINAL_INTERCEPTOR = new Interceptor()
+    {
+        private DirectoryPartitionNexus nexus;
+
+
+        public void init( DirectoryServiceConfiguration factoryCfg, InterceptorConfiguration cfg )
+        {
+            this.nexus = factoryCfg.getPartitionNexus();
+        }
+
+
+        public void destroy()
+        {
+            // unused
+        }
+
+
+        public boolean compare( NextInterceptor next, Name name, String oid, Object value ) throws NamingException
+        {
+            return nexus.compare( name, oid, value );
+        }
+
+
+        public Attributes getRootDSE( NextInterceptor next ) throws NamingException
+        {
+            return nexus.getRootDSE();
+        }
+
+
+        public Name getMatchedName( NextInterceptor next, Name dn, boolean normalized ) throws NamingException
+        {
+            return ( Name ) nexus.getMatchedName( dn, normalized ).clone();
+        }
+
+
+        public Name getSuffix( NextInterceptor next, Name dn, boolean normalized ) throws NamingException
+        {
+            return ( Name ) nexus.getSuffix( dn, normalized ).clone();
+        }
+
+
+        public Iterator listSuffixes( NextInterceptor next, boolean normalized ) throws NamingException
+        {
+            return nexus.listSuffixes( normalized );
+        }
+
+
+        public void delete( NextInterceptor next, Name name ) throws NamingException
+        {
+            nexus.delete( name );
+        }
+
+
+        public void add( NextInterceptor next, String upName, Name normName, Attributes entry ) throws NamingException
+        {
+            nexus.add( upName, normName, entry );
+        }
+
+
+        public void modify( NextInterceptor next, Name name, int modOp, Attributes mods ) throws NamingException
+        {
+            nexus.modify( name, modOp, mods );
+        }
+
+
+        public void modify( NextInterceptor next, Name name, ModificationItem[] mods ) throws NamingException
+        {
+            nexus.modify( name, mods );
+        }
+
+
+        public NamingEnumeration list( NextInterceptor next, Name base ) throws NamingException
+        {
+            return nexus.list( base );
+        }
+
+
+        public NamingEnumeration search( NextInterceptor next, Name base, Map env, ExprNode filter,
+            SearchControls searchCtls ) throws NamingException
+        {
+            return nexus.search( base, env, filter, searchCtls );
+        }
+
+
+        public Attributes lookup( NextInterceptor next, Name name ) throws NamingException
+        {
+            return ( Attributes ) nexus.lookup( name ).clone();
+        }
+
+
+        public Attributes lookup( NextInterceptor next, Name dn, String[] attrIds ) throws NamingException
+        {
+            return ( Attributes ) nexus.lookup( dn, attrIds ).clone();
+        }
+
+
+        public boolean hasEntry( NextInterceptor next, Name name ) throws NamingException
+        {
+            return nexus.hasEntry( name );
+        }
+
+
+        public boolean isSuffix( NextInterceptor next, Name name ) throws NamingException
+        {
+            return nexus.isSuffix( name );
+        }
+
+
+        public void modifyRn( NextInterceptor next, Name name, String newRn, boolean deleteOldRn )
+            throws NamingException
+        {
+            nexus.modifyRn( name, newRn, deleteOldRn );
+        }
+
+
+        public void move( NextInterceptor next, Name oriChildName, Name newParentName ) throws NamingException
+        {
+            nexus.move( oriChildName, newParentName );
+        }
+
+
+        public void move( NextInterceptor next, Name oriChildName, Name newParentName, String newRn, boolean deleteOldRn )
+            throws NamingException
+        {
+            nexus.move( oriChildName, newParentName, newRn, deleteOldRn );
+        }
+
+
+        public void addContextPartition( NextInterceptor next, DirectoryPartitionConfiguration cfg )
+            throws NamingException
+        {
+            nexus.addContextPartition( cfg );
+        }
+
+
+        public void removeContextPartition( NextInterceptor next, Name suffix ) throws NamingException
+        {
+            nexus.removeContextPartition( suffix );
+        }
+
+
+        public void bind( NextInterceptor next, Name bindDn, byte[] credentials, List mechanisms, String saslAuthId )
+            throws NamingException
+        {
+            nexus.bind( bindDn, credentials, mechanisms, saslAuthId );
+        }
+
+
+        public void unbind( NextInterceptor next, Name bindDn ) throws NamingException
+        {
+            nexus.unbind( bindDn );
+        }
+    };
+
+    private final Map name2entry = new HashMap();
+
+    private final Entry tail;
+
+    private Entry head;
+
+    private DirectoryServiceConfiguration factoryCfg;
+
+
+    /**
+     * Create a new interceptor chain.
+     */
+    public InterceptorChain()
+    {
+        MutableInterceptorConfiguration tailCfg = new MutableInterceptorConfiguration();
+        tailCfg.setName( "tail" );
+        tailCfg.setInterceptor( FINAL_INTERCEPTOR );
+        tail = new Entry( null, null, tailCfg );
+        head = tail;
+    }
+
+
+    /**
+     * Initializes and registers all interceptors according to the specified
+     * {@link DirectoryServiceConfiguration}.
+     */
+    public synchronized void init( DirectoryServiceConfiguration factoryCfg ) throws NamingException
+    {
+        this.factoryCfg = factoryCfg;
+
+        // Initialize tail first.
+        FINAL_INTERCEPTOR.init( factoryCfg, null );
+
+        // And register and initialize all interceptors
+        ListIterator i = factoryCfg.getStartupConfiguration().getInterceptorConfigurations().listIterator();
+        Interceptor interceptor = null;
+        try
+        {
+            while ( i.hasNext() )
+            {
+                InterceptorConfiguration cfg = ( InterceptorConfiguration ) i.next();
+
+                if ( log.isDebugEnabled() )
+                {
+                    log.debug( "Adding interceptor " + cfg.getName() );
+                }
+
+                register( cfg );
+            }
+        }
+        catch ( Throwable t )
+        {
+            // destroy if failed to initialize all interceptors.
+            destroy();
+
+            if ( t instanceof NamingException )
+            {
+                throw ( NamingException ) t;
+            }
+            else
+            {
+                throw new InterceptorException( interceptor, "Failed to initialize interceptor chain.", t );
+            }
+        }
+    }
+
+
+    /**
+     * Deinitializes and deregisters all interceptors this chain contains.
+     */
+    public synchronized void destroy()
+    {
+        List entries = new ArrayList();
+        Entry e = tail;
+        do
+        {
+            entries.add( e );
+            e = e.prevEntry;
+        }
+        while ( e != null );
+
+        Iterator i = entries.iterator();
+        while ( i.hasNext() )
+        {
+            e = ( Entry ) i.next();
+            if ( e != tail )
+            {
+                try
+                {
+                    deregister( e.configuration.getName() );
+                }
+                catch ( Throwable t )
+                {
+                    log.warn( "Failed to deregister an interceptor: " + e.configuration.getName(), t );
+                }
+            }
+        }
+    }
+
+
+    /**
+     * Returns the registered interceptor with the specified name.
+     * @return <tt>null</tt> if the specified name doesn't exist.
+     */
+    public Interceptor get( String interceptorName )
+    {
+        Entry e = ( Entry ) name2entry.get( interceptorName );
+        if ( e == null )
+        {
+            return null;
+        }
+
+        return e.configuration.getInterceptor();
+    }
+
+
+    /**
+     * Returns the list of all registered interceptors.
+     */
+    public synchronized List getAll()
+    {
+        List result = new ArrayList();
+        Entry e = head;
+        do
+        {
+            result.add( e.configuration.getInterceptor() );
+            e = e.nextEntry;
+        }
+        while ( e != tail );
+
+        return result;
+    }
+
+
+    public synchronized void addFirst( InterceptorConfiguration cfg ) throws NamingException
+    {
+        register0( cfg, head );
+    }
+
+
+    public synchronized void addLast( InterceptorConfiguration cfg ) throws NamingException
+    {
+        register0( cfg, tail );
+    }
+
+
+    public synchronized void addBefore( String nextInterceptorName, InterceptorConfiguration cfg )
+        throws NamingException
+    {
+        Entry e = ( Entry ) name2entry.get( nextInterceptorName );
+        if ( e == null )
+        {
+            throw new ConfigurationException( "Interceptor not found: " + nextInterceptorName );
+        }
+        register0( cfg, e );
+    }
+
+
+    public synchronized InterceptorConfiguration remove( String interceptorName ) throws NamingException
+    {
+        return deregister( interceptorName );
+    }
+
+
+    public synchronized void addAfter( String prevInterceptorName, InterceptorConfiguration cfg )
+        throws NamingException
+    {
+        Entry e = ( Entry ) name2entry.get( prevInterceptorName );
+        if ( e == null )
+        {
+            throw new ConfigurationException( "Interceptor not found: " + prevInterceptorName );
+        }
+        register0( cfg, e.nextEntry );
+    }
+
+
+    /**
+     * Adds and initializes an interceptor with the specified configuration.
+     */
+    private void register( InterceptorConfiguration cfg ) throws NamingException
+    {
+        checkAddable( cfg );
+        register0( cfg, tail );
+    }
+
+
+    /**
+     * Removes and deinitializes the interceptor with the specified name.
+     */
+    private InterceptorConfiguration deregister( String name ) throws ConfigurationException
+    {
+        Entry entry = checkOldName( name );
+        Entry prevEntry = entry.prevEntry;
+        Entry nextEntry = entry.nextEntry;
+
+        if ( nextEntry == null )
+        {
+            // Don't deregister tail
+            return null;
+        }
+
+        if ( prevEntry == null )
+        {
+            nextEntry.prevEntry = null;
+            head = nextEntry;
+        }
+        else
+        {
+            prevEntry.nextEntry = nextEntry;
+            nextEntry.prevEntry = prevEntry;
+        }
+
+        name2entry.remove( name );
+        entry.configuration.getInterceptor().destroy();
+
+        return entry.configuration;
+    }
+
+
+    private void register0( InterceptorConfiguration cfg, Entry nextEntry ) throws NamingException
+    {
+        String name = cfg.getName();
+        Interceptor interceptor = cfg.getInterceptor();
+        interceptor.init( factoryCfg, cfg );
+
+        Entry newEntry;
+        if ( nextEntry == head )
+        {
+            newEntry = new Entry( null, head, cfg );
+            head.prevEntry = newEntry;
+            head = newEntry;
+        }
+        else if ( head == tail )
+        {
+            newEntry = new Entry( null, tail, cfg );
+            tail.prevEntry = newEntry;
+            head = newEntry;
+        }
+        else
+        {
+            newEntry = new Entry( nextEntry.prevEntry, nextEntry, cfg );
+            nextEntry.prevEntry.nextEntry = newEntry;
+            nextEntry.prevEntry = newEntry;
+        }
+
+        name2entry.put( name, newEntry );
+    }
+
+
+    /**
+     * Throws an exception when the specified interceptor name is not registered in this chain.
+     *
+     * @return An interceptor entry with the specified name.
+     */
+    private Entry checkOldName( String baseName ) throws ConfigurationException
+    {
+        Entry e = ( Entry ) name2entry.get( baseName );
+
+        if ( e == null )
+        {
+            throw new ConfigurationException( "Unknown interceptor name:" + baseName );
+        }
+
+        return e;
+    }
+
+
+    /**
+     * Checks the specified interceptor name is already taken and throws an exception if already taken.
+     */
+    private void checkAddable( InterceptorConfiguration cfg ) throws ConfigurationException
+    {
+        if ( name2entry.containsKey( cfg.getName() ) )
+        {
+            throw new ConfigurationException( "Other interceptor is using name '" + cfg.getName() + "'" );
+        }
+    }
+
+
+    /**
+     * Gets the InterceptorEntry to use first with bypass information considered.
+     *
+     * @return the first entry to use.
+     */
+    private Entry getStartingEntry()
+    {
+        if ( InvocationStack.getInstance().isEmpty() )
+        {
+            return head;
+        }
+
+        Invocation invocation = InvocationStack.getInstance().peek();
+        if ( !invocation.hasBypass() )
+        {
+            return head;
+        }
+
+        if ( invocation.isBypassed( DirectoryPartitionNexusProxy.BYPASS_ALL ) )
+        {
+            return tail;
+        }
+
+        Entry next = head;
+        while ( next != tail )
+        {
+            if ( invocation.isBypassed( next.configuration.getName() ) )
+            {
+                next = next.nextEntry;
+            }
+            else
+            {
+                return next;
+            }
+        }
+
+        return tail;
+    }
+
+
+    public Attributes getRootDSE() throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            return head.getRootDSE( next );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public Name getMatchedName( Name name, boolean normalized ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            return head.getMatchedName( next, name, normalized );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public Name getSuffix( Name name, boolean normalized ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            return head.getSuffix( next, name, normalized );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public boolean compare( Name name, String oid, Object value ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            return head.compare( next, name, oid, value );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public Iterator listSuffixes( boolean normalized ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            return head.listSuffixes( next, normalized );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public void addContextPartition( DirectoryPartitionConfiguration cfg ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            head.addContextPartition( next, cfg );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public void removeContextPartition( Name suffix ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            head.removeContextPartition( next, suffix );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public void delete( Name name ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            head.delete( next, name );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+        }
+    }
+
+
+    public void add( String upName, Name normName, Attributes entry ) throws NamingException
+    {
+        Entry node = getStartingEntry();
+        Interceptor head = node.configuration.getInterceptor();
+        NextInterceptor next = node.nextInterceptor;
+        try
+        {
+            head.add( next, upName, normName, entry );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+        }
+    }
+
+
+    public void bind( Name bindDn, byte[] credentials, List mechanisms, String saslAuthId ) throws NamingException
+    {
+        Entry node = getStartingEntry();
+        Interceptor head = node.configuration.getInterceptor();
+        NextInterceptor next = node.nextInterceptor;
+        try
+        {
+            head.bind( next, bindDn, credentials, mechanisms, saslAuthId );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+        }
+    }
+
+
+    public void unbind( Name bindDn ) throws NamingException
+    {
+        Entry node = getStartingEntry();
+        Interceptor head = node.configuration.getInterceptor();
+        NextInterceptor next = node.nextInterceptor;
+        try
+        {
+            head.unbind( next, bindDn );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+        }
+    }
+
+
+    public void modify( Name name, int modOp, Attributes mods ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            head.modify( next, name, modOp, mods );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+        }
+    }
+
+
+    public void modify( Name name, ModificationItem[] mods ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            head.modify( next, name, mods );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+        }
+    }
+
+
+    public NamingEnumeration list( Name base ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            return head.list( next, base );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public NamingEnumeration search( Name base, Map env, ExprNode filter, SearchControls searchCtls )
+        throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            return head.search( next, base, env, filter, searchCtls );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public Attributes lookup( Name name ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            return head.lookup( next, name );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public Attributes lookup( Name dn, String[] attrIds ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            return head.lookup( next, dn, attrIds );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public boolean hasEntry( Name name ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            return head.hasEntry( next, name );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public boolean isSuffix( Name name ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            return head.isSuffix( next, name );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+            throw new InternalError(); // Should be unreachable
+        }
+    }
+
+
+    public void modifyRn( Name name, String newRn, boolean deleteOldRn ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            head.modifyRn( next, name, newRn, deleteOldRn );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+        }
+    }
+
+
+    public void move( Name oriChildName, Name newParentName ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            head.move( next, oriChildName, newParentName );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+        }
+    }
+
+
+    public void move( Name oriChildName, Name newParentName, String newRn, boolean deleteOldRn ) throws NamingException
+    {
+        Entry entry = getStartingEntry();
+        Interceptor head = entry.configuration.getInterceptor();
+        NextInterceptor next = entry.nextInterceptor;
+        try
+        {
+            head.move( next, oriChildName, newParentName, newRn, deleteOldRn );
+        }
+        catch ( NamingException ne )
+        {
+            throw ne;
+        }
+        catch ( Throwable e )
+        {
+            throwInterceptorException( head, e );
+        }
+    }
+
+    /**
+     * Represents an internal entry of this chain.
+     */
+    private class Entry
+    {
+        private Entry prevEntry;
+
+        private Entry nextEntry;
+
+        private final InterceptorConfiguration configuration;
+
+        private final NextInterceptor nextInterceptor;
+
+
+        private Entry(Entry prevEntry, Entry nextEntry, InterceptorConfiguration configuration)
+        {
+            if ( configuration == null )
+            {
+                throw new NullPointerException( "configuration" );
+            }
+
+            this.prevEntry = prevEntry;
+            this.nextEntry = nextEntry;
+            this.configuration = configuration;
+            this.nextInterceptor = new NextInterceptor()
+            {
+                private Entry getNextEntry()
+                {
+                    if ( InvocationStack.getInstance().isEmpty() )
+                    {
+                        return Entry.this.nextEntry;
+                    }
+
+                    Invocation invocation = InvocationStack.getInstance().peek();
+                    if ( !invocation.hasBypass() )
+                    {
+                        return Entry.this.nextEntry;
+                    }
+
+                    //  I don't think we really need this since this check is performed by the chain when
+                    //  getting the interceptor head to use.
+                    //
+                    //                    if ( invocation.isBypassed( DirectoryPartitionNexusProxy.BYPASS_ALL ) )
+                    //                    {
+                    //                        return tail;
+                    //                    }
+
+                    Entry next = Entry.this.nextEntry;
+                    while ( next != tail )
+                    {
+                        if ( invocation.isBypassed( next.configuration.getName() ) )
+                        {
+                            next = next.nextEntry;
+                        }
+                        else
+                        {
+                            return next;
+                        }
+                    }
+
+                    return next;
+                }
+
+
+                public boolean compare( Name name, String oid, Object value ) throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        return interceptor.compare( next.nextInterceptor, name, oid, value );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                        throw new InternalError(); // Should be unreachable
+                    }
+                }
+
+
+                public Attributes getRootDSE() throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        return interceptor.getRootDSE( next.nextInterceptor );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                        throw new InternalError(); // Should be unreachable
+                    }
+                }
+
+
+                public Name getMatchedName( Name dn, boolean normalized ) throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        return interceptor.getMatchedName( next.nextInterceptor, dn, normalized );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                        throw new InternalError(); // Should be unreachable
+                    }
+                }
+
+
+                public Name getSuffix( Name dn, boolean normalized ) throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        return interceptor.getSuffix( next.nextInterceptor, dn, normalized );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                        throw new InternalError(); // Should be unreachable
+                    }
+                }
+
+
+                public Iterator listSuffixes( boolean normalized ) throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        return interceptor.listSuffixes( next.nextInterceptor, normalized );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                        throw new InternalError(); // Should be unreachable
+                    }
+                }
+
+
+                public void delete( Name name ) throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        interceptor.delete( next.nextInterceptor, name );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                    }
+                }
+
+
+                public void add( String upName, Name normName, Attributes entry ) throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        interceptor.add( next.nextInterceptor, upName, normName, entry );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                    }
+                }
+
+
+                public void modify( Name name, int modOp, Attributes mods ) throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        interceptor.modify( next.nextInterceptor, name, modOp, mods );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                    }
+                }
+
+
+                public void modify( Name name, ModificationItem[] mods ) throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        interceptor.modify( next.nextInterceptor, name, mods );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                    }
+                }
+
+
+                public NamingEnumeration list( Name base ) throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        return interceptor.list( next.nextInterceptor, base );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                        throw new InternalError(); // Should be unreachable
+                    }
+                }
+
+
+                public NamingEnumeration search( Name base, Map env, ExprNode filter, SearchControls searchCtls )
+                    throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        return interceptor.search( next.nextInterceptor, base, env, filter, searchCtls );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                        throw new InternalError(); // Should be unreachable
+                    }
+                }
+
+
+                public Attributes lookup( Name name ) throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        return interceptor.lookup( next.nextInterceptor, name );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )
+                    {
+                        throwInterceptorException( interceptor, e );
+                        throw new InternalError(); // Should be unreachable
+                    }
+                }
+
+
+                public Attributes lookup( Name dn, String[] attrIds ) throws NamingException
+                {
+                    Entry next = getNextEntry();
+                    Interceptor interceptor = next.configuration.getInterceptor();
+
+                    try
+                    {
+                        return interceptor.lookup( next.nextInterceptor, dn, attrIds );
+                    }
+                    catch ( NamingException ne )
+                    {
+                        throw ne;
+                    }
+                    catch ( Throwable e )

[... 202 lines stripped ...]


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